US20230404948A1 - Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders - Google Patents
Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders Download PDFInfo
- Publication number
- US20230404948A1 US20230404948A1 US18/207,668 US202318207668A US2023404948A1 US 20230404948 A1 US20230404948 A1 US 20230404948A1 US 202318207668 A US202318207668 A US 202318207668A US 2023404948 A1 US2023404948 A1 US 2023404948A1
- Authority
- US
- United States
- Prior art keywords
- inflammation
- disorders
- dma
- disease
- syndrome
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000002207 metabolite Substances 0.000 title claims abstract description 10
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 title abstract description 84
- 238000011282 treatment Methods 0.000 title abstract description 18
- 208000027866 inflammatory disease Diseases 0.000 title abstract description 7
- 206010061218 Inflammation Diseases 0.000 claims abstract description 40
- 230000004054 inflammatory process Effects 0.000 claims abstract description 40
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 19
- 201000010099 disease Diseases 0.000 claims abstract description 11
- 208000005107 Premature Birth Diseases 0.000 claims abstract description 10
- 208000015181 infectious disease Diseases 0.000 claims abstract description 8
- 208000035475 disorder Diseases 0.000 claims abstract description 6
- 208000006399 Premature Obstetric Labor Diseases 0.000 claims abstract description 5
- 208000015122 neurodegenerative disease Diseases 0.000 claims abstract description 4
- 208000023275 Autoimmune disease Diseases 0.000 claims abstract 2
- 208000024172 Cardiovascular disease Diseases 0.000 claims abstract 2
- 208000017701 Endocrine disease Diseases 0.000 claims abstract 2
- 208000018522 Gastrointestinal disease Diseases 0.000 claims abstract 2
- 208000023178 Musculoskeletal disease Diseases 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 29
- 210000001519 tissue Anatomy 0.000 claims description 9
- 208000011580 syndromic disease Diseases 0.000 claims description 6
- 206010028980 Neoplasm Diseases 0.000 claims description 5
- 230000002757 inflammatory effect Effects 0.000 claims description 5
- 201000004624 Dermatitis Diseases 0.000 claims description 4
- 206010036774 Proctitis Diseases 0.000 claims description 4
- 206010042033 Stevens-Johnson syndrome Diseases 0.000 claims description 4
- 208000010668 atopic eczema Diseases 0.000 claims description 4
- 208000002551 irritable bowel syndrome Diseases 0.000 claims description 4
- 201000008482 osteoarthritis Diseases 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 208000008589 Obesity Diseases 0.000 claims description 3
- 206010040047 Sepsis Diseases 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 208000014674 injury Diseases 0.000 claims description 3
- 229930014626 natural product Natural products 0.000 claims description 3
- 230000009826 neoplastic cell growth Effects 0.000 claims description 3
- 230000004770 neurodegeneration Effects 0.000 claims description 3
- 235000020824 obesity Nutrition 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 claims description 3
- 230000008733 trauma Effects 0.000 claims description 3
- 208000030507 AIDS Diseases 0.000 claims description 2
- 208000002874 Acne Vulgaris Diseases 0.000 claims description 2
- 206010001052 Acute respiratory distress syndrome Diseases 0.000 claims description 2
- 208000024827 Alzheimer disease Diseases 0.000 claims description 2
- 206010002383 Angina Pectoris Diseases 0.000 claims description 2
- 206010006811 Bursitis Diseases 0.000 claims description 2
- 206010008874 Chronic Fatigue Syndrome Diseases 0.000 claims description 2
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 claims description 2
- 208000015943 Coeliac disease Diseases 0.000 claims description 2
- 206010009900 Colitis ulcerative Diseases 0.000 claims description 2
- 208000011231 Crohn disease Diseases 0.000 claims description 2
- 206010067889 Dementia with Lewy bodies Diseases 0.000 claims description 2
- 208000016192 Demyelinating disease Diseases 0.000 claims description 2
- 206010012468 Dermatitis herpetiformis Diseases 0.000 claims description 2
- 201000009273 Endometriosis Diseases 0.000 claims description 2
- 206010056246 Eosinophilic cystitis Diseases 0.000 claims description 2
- 208000001640 Fibromyalgia Diseases 0.000 claims description 2
- 201000011240 Frontotemporal dementia Diseases 0.000 claims description 2
- 208000007882 Gastritis Diseases 0.000 claims description 2
- 208000005577 Gastroenteritis Diseases 0.000 claims description 2
- 206010018364 Glomerulonephritis Diseases 0.000 claims description 2
- 208000024869 Goodpasture syndrome Diseases 0.000 claims description 2
- 201000005569 Gout Diseases 0.000 claims description 2
- 208000009329 Graft vs Host Disease Diseases 0.000 claims description 2
- 208000009889 Herpes Simplex Diseases 0.000 claims description 2
- 208000023105 Huntington disease Diseases 0.000 claims description 2
- 206010021531 Impetigo Diseases 0.000 claims description 2
- 208000022559 Inflammatory bowel disease Diseases 0.000 claims description 2
- 201000002832 Lewy body dementia Diseases 0.000 claims description 2
- 208000009525 Myocarditis Diseases 0.000 claims description 2
- 208000000592 Nasal Polyps Diseases 0.000 claims description 2
- 208000012902 Nervous system disease Diseases 0.000 claims description 2
- 208000025966 Neurological disease Diseases 0.000 claims description 2
- 206010033645 Pancreatitis Diseases 0.000 claims description 2
- 208000018737 Parkinson disease Diseases 0.000 claims description 2
- 206010034277 Pemphigoid Diseases 0.000 claims description 2
- 201000011152 Pemphigus Diseases 0.000 claims description 2
- 206010035664 Pneumonia Diseases 0.000 claims description 2
- 206010036049 Polycystic ovaries Diseases 0.000 claims description 2
- 208000007048 Polymyalgia Rheumatica Diseases 0.000 claims description 2
- 201000004681 Psoriasis Diseases 0.000 claims description 2
- 201000001263 Psoriatic Arthritis Diseases 0.000 claims description 2
- 208000036824 Psoriatic arthropathy Diseases 0.000 claims description 2
- 208000013616 Respiratory Distress Syndrome Diseases 0.000 claims description 2
- 241001303601 Rosacea Species 0.000 claims description 2
- 206010039710 Scleroderma Diseases 0.000 claims description 2
- 208000021386 Sjogren Syndrome Diseases 0.000 claims description 2
- 231100000168 Stevens-Johnson syndrome Toxicity 0.000 claims description 2
- 208000006011 Stroke Diseases 0.000 claims description 2
- 208000007536 Thrombosis Diseases 0.000 claims description 2
- 206010044223 Toxic epidermal necrolysis Diseases 0.000 claims description 2
- 231100000087 Toxic epidermal necrolysis Toxicity 0.000 claims description 2
- 241000159241 Toxicodendron Species 0.000 claims description 2
- 241000159243 Toxicodendron radicans Species 0.000 claims description 2
- 206010052779 Transplant rejections Diseases 0.000 claims description 2
- 208000030886 Traumatic Brain injury Diseases 0.000 claims description 2
- 201000006704 Ulcerative Colitis Diseases 0.000 claims description 2
- 208000024780 Urticaria Diseases 0.000 claims description 2
- 206010047115 Vasculitis Diseases 0.000 claims description 2
- 206010000496 acne Diseases 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims description 2
- 208000011341 adult acute respiratory distress syndrome Diseases 0.000 claims description 2
- 201000000028 adult respiratory distress syndrome Diseases 0.000 claims description 2
- 230000000172 allergic effect Effects 0.000 claims description 2
- 208000004631 alopecia areata Diseases 0.000 claims description 2
- 206010002026 amyotrophic lateral sclerosis Diseases 0.000 claims description 2
- 208000006673 asthma Diseases 0.000 claims description 2
- 206010006451 bronchitis Diseases 0.000 claims description 2
- 208000000594 bullous pemphigoid Diseases 0.000 claims description 2
- 210000003169 central nervous system Anatomy 0.000 claims description 2
- 230000001684 chronic effect Effects 0.000 claims description 2
- 206010009887 colitis Diseases 0.000 claims description 2
- 208000018631 connective tissue disease Diseases 0.000 claims description 2
- 201000001981 dermatomyositis Diseases 0.000 claims description 2
- 206010012601 diabetes mellitus Diseases 0.000 claims description 2
- 208000007784 diverticulitis Diseases 0.000 claims description 2
- 206010014599 encephalitis Diseases 0.000 claims description 2
- 208000007565 gingivitis Diseases 0.000 claims description 2
- 208000024908 graft versus host disease Diseases 0.000 claims description 2
- 208000006454 hepatitis Diseases 0.000 claims description 2
- 231100000283 hepatitis Toxicity 0.000 claims description 2
- 208000037797 influenza A Diseases 0.000 claims description 2
- 208000028867 ischemia Diseases 0.000 claims description 2
- 230000000366 juvenile effect Effects 0.000 claims description 2
- 230000003211 malignant effect Effects 0.000 claims description 2
- 208000008585 mastocytosis Diseases 0.000 claims description 2
- 208000008275 microscopic colitis Diseases 0.000 claims description 2
- 201000006417 multiple sclerosis Diseases 0.000 claims description 2
- 208000029766 myalgic encephalomeyelitis/chronic fatigue syndrome Diseases 0.000 claims description 2
- 206010028417 myasthenia gravis Diseases 0.000 claims description 2
- 208000010125 myocardial infarction Diseases 0.000 claims description 2
- 208000004296 neuralgia Diseases 0.000 claims description 2
- 201000001976 pemphigus vulgaris Diseases 0.000 claims description 2
- 208000028169 periodontal disease Diseases 0.000 claims description 2
- 208000033808 peripheral neuropathy Diseases 0.000 claims description 2
- 201000010065 polycystic ovary syndrome Diseases 0.000 claims description 2
- 208000005987 polymyositis Diseases 0.000 claims description 2
- 208000005069 pulmonary fibrosis Diseases 0.000 claims description 2
- 230000010410 reperfusion Effects 0.000 claims description 2
- 206010039073 rheumatoid arthritis Diseases 0.000 claims description 2
- 201000004700 rosacea Diseases 0.000 claims description 2
- 201000000306 sarcoidosis Diseases 0.000 claims description 2
- 201000000980 schizophrenia Diseases 0.000 claims description 2
- 201000009890 sinusitis Diseases 0.000 claims description 2
- 208000020431 spinal cord injury Diseases 0.000 claims description 2
- 201000004595 synovitis Diseases 0.000 claims description 2
- 230000009885 systemic effect Effects 0.000 claims description 2
- 201000000596 systemic lupus erythematosus Diseases 0.000 claims description 2
- 206010043778 thyroiditis Diseases 0.000 claims description 2
- 230000009529 traumatic brain injury Effects 0.000 claims description 2
- 206010006895 Cachexia Diseases 0.000 claims 1
- 206010065042 Immune reconstitution inflammatory syndrome Diseases 0.000 claims 1
- 208000018569 Respiratory Tract disease Diseases 0.000 claims 1
- 241000871311 Toxicodendron vernix Species 0.000 claims 1
- 230000003143 atherosclerotic effect Effects 0.000 claims 1
- 208000030172 endocrine system disease Diseases 0.000 claims 1
- 230000003902 lesion Effects 0.000 claims 1
- 230000001394 metastastic effect Effects 0.000 claims 1
- 206010061289 metastatic neoplasm Diseases 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 241000124008 Mammalia Species 0.000 abstract description 2
- 230000000771 oncological effect Effects 0.000 abstract description 2
- 230000002028 premature Effects 0.000 abstract description 2
- 208000019693 Lung disease Diseases 0.000 abstract 1
- 241000699670 Mus sp. Species 0.000 description 34
- 230000000694 effects Effects 0.000 description 18
- 238000012384 transportation and delivery Methods 0.000 description 13
- 102000003945 NF-kappa B Human genes 0.000 description 12
- 108010057466 NF-kappa B Proteins 0.000 description 12
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 10
- 239000002953 phosphate buffered saline Substances 0.000 description 10
- 210000002826 placenta Anatomy 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 9
- 231100000673 dose–response relationship Toxicity 0.000 description 8
- 210000004969 inflammatory cell Anatomy 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- OHLUUHNLEMFGTQ-UHFFFAOYSA-N N-methylacetamide Chemical compound CNC(C)=O OHLUUHNLEMFGTQ-UHFFFAOYSA-N 0.000 description 6
- 239000000499 gel Substances 0.000 description 6
- 108090000695 Cytokines Proteins 0.000 description 5
- 102000004127 Cytokines Human genes 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 5
- 238000003119 immunoblot Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 102000004169 proteins and genes Human genes 0.000 description 5
- 108090000623 proteins and genes Proteins 0.000 description 5
- 230000005945 translocation Effects 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000699666 Mus <mouse, genus> Species 0.000 description 4
- 108060008682 Tumor Necrosis Factor Proteins 0.000 description 4
- 102000000852 Tumor Necrosis Factor-alpha Human genes 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 238000007912 intraperitoneal administration Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000005937 nuclear translocation Effects 0.000 description 4
- 206010000234 Abortion spontaneous Diseases 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- 108090001005 Interleukin-6 Proteins 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 102000008109 Mixed Function Oxygenases Human genes 0.000 description 3
- 108010074633 Mixed Function Oxygenases Proteins 0.000 description 3
- 241000700159 Rattus Species 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 3
- 229940121363 anti-inflammatory agent Drugs 0.000 description 3
- 239000002260 anti-inflammatory agent Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 229940027941 immunoglobulin g Drugs 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- 210000004185 liver Anatomy 0.000 description 3
- 239000013642 negative control Substances 0.000 description 3
- 210000000440 neutrophil Anatomy 0.000 description 3
- 210000004940 nucleus Anatomy 0.000 description 3
- 210000005059 placental tissue Anatomy 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 230000000770 proinflammatory effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 208000000995 spontaneous abortion Diseases 0.000 description 3
- -1 transdermal patches Substances 0.000 description 3
- 210000004291 uterus Anatomy 0.000 description 3
- DVLFYONBTKHTER-UHFFFAOYSA-N 3-(N-morpholino)propanesulfonic acid Chemical compound OS(=O)(=O)CCCN1CCOCC1 DVLFYONBTKHTER-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- 238000011740 C57BL/6 mouse Methods 0.000 description 2
- 241000283707 Capra Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- WZUVPPKBWHMQCE-UHFFFAOYSA-N Haematoxylin Chemical compound C12=CC(O)=C(O)C=C2CC2(O)C1C1=CC=C(O)C(O)=C1OC2 WZUVPPKBWHMQCE-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 206010036595 Premature delivery Diseases 0.000 description 2
- 102000002689 Toll-like receptor Human genes 0.000 description 2
- 108020000411 Toll-like receptor Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003221 ear drop Substances 0.000 description 2
- 229940047652 ear drops Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003885 eye ointment Substances 0.000 description 2
- 238000001502 gel electrophoresis Methods 0.000 description 2
- 238000010231 histologic analysis Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000004968 inflammatory condition Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000002540 macrophage Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010172 mouse model Methods 0.000 description 2
- 238000012758 nuclear staining Methods 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 239000006072 paste Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000006187 pill Substances 0.000 description 2
- 230000003169 placental effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 210000002966 serum Anatomy 0.000 description 2
- 230000019491 signal transduction Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- MZOFCQQQCNRIBI-VMXHOPILSA-N (3s)-4-[[(2s)-1-[[(2s)-1-[[(1s)-1-carboxy-2-hydroxyethyl]amino]-4-methyl-1-oxopentan-2-yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-3-[[2-[[(2s)-2,6-diaminohexanoyl]amino]acetyl]amino]-4-oxobutanoic acid Chemical compound OC[C@@H](C(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@@H](N)CCCCN MZOFCQQQCNRIBI-VMXHOPILSA-N 0.000 description 1
- FWBHETKCLVMNFS-UHFFFAOYSA-N 4',6-Diamino-2-phenylindol Chemical compound C1=CC(C(=N)N)=CC=C1C1=CC2=CC=C(C(N)=N)C=C2N1 FWBHETKCLVMNFS-UHFFFAOYSA-N 0.000 description 1
- ZDRVLAOYDGQLFI-UHFFFAOYSA-N 4-[[4-(4-chlorophenyl)-1,3-thiazol-2-yl]amino]phenol;hydrochloride Chemical compound Cl.C1=CC(O)=CC=C1NC1=NC(C=2C=CC(Cl)=CC=2)=CS1 ZDRVLAOYDGQLFI-UHFFFAOYSA-N 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 238000009010 Bradford assay Methods 0.000 description 1
- COVZYZSDYWQREU-UHFFFAOYSA-N Busulfan Chemical compound CS(=O)(=O)OCCCCOS(C)(=O)=O COVZYZSDYWQREU-UHFFFAOYSA-N 0.000 description 1
- 102100030497 Cytochrome c Human genes 0.000 description 1
- 108010075031 Cytochromes c Proteins 0.000 description 1
- 101710088194 Dehydrogenase Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000000729 Fisher's exact test Methods 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 108010001336 Horseradish Peroxidase Proteins 0.000 description 1
- 239000007993 MOPS buffer Substances 0.000 description 1
- 206010027476 Metastases Diseases 0.000 description 1
- 238000011887 Necropsy Methods 0.000 description 1
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- 229920001213 Polysorbate 20 Polymers 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000013504 Triton X-100 Substances 0.000 description 1
- 229920004890 Triton X-100 Polymers 0.000 description 1
- 238000001793 Wilcoxon signed-rank test Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 229940124522 antiretrovirals Drugs 0.000 description 1
- 239000003903 antiretrovirus agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000376 autoradiography Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- OWMVSZAMULFTJU-UHFFFAOYSA-N bis-tris Chemical compound OCCN(CCO)C(CO)(CO)CO OWMVSZAMULFTJU-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229960002092 busulfan Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 210000003855 cell nucleus Anatomy 0.000 description 1
- 230000006041 cell recruitment Effects 0.000 description 1
- 230000003833 cell viability Effects 0.000 description 1
- 230000030570 cellular localization Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000546 chi-square test Methods 0.000 description 1
- 230000002338 cryopreservative effect Effects 0.000 description 1
- 210000000805 cytoplasm Anatomy 0.000 description 1
- 230000017858 demethylation Effects 0.000 description 1
- 238000010520 demethylation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000002900 effect on cell Effects 0.000 description 1
- YQGOJNYOYNNSMM-UHFFFAOYSA-N eosin Chemical compound [Na+].OC(=O)C1=CC=CC=C1C1=C2C=C(Br)C(=O)C(Br)=C2OC2=C(Br)C(O)=C(Br)C=C21 YQGOJNYOYNNSMM-UHFFFAOYSA-N 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002440 hepatic effect Effects 0.000 description 1
- 108091008147 housekeeping proteins Proteins 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 238000010166 immunofluorescence Methods 0.000 description 1
- 238000012744 immunostaining Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000028709 inflammatory response Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 210000000265 leukocyte Anatomy 0.000 description 1
- 238000001325 log-rank test Methods 0.000 description 1
- 239000012139 lysis buffer Substances 0.000 description 1
- 210000003622 mature neutrocyte Anatomy 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000009401 metastasis Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- HWJHZLJIIWOTGZ-UHFFFAOYSA-N n-(hydroxymethyl)acetamide Chemical compound CC(=O)NCO HWJHZLJIIWOTGZ-UHFFFAOYSA-N 0.000 description 1
- 239000000236 nitric oxide synthase inhibitor Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000009871 nonspecific binding Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000001543 one-way ANOVA Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229940002612 prodrug Drugs 0.000 description 1
- 239000000651 prodrug Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000012146 running buffer Substances 0.000 description 1
- CSYSULGPHGCBQD-UHFFFAOYSA-N s-ethylisothiouronium diethylphosphate Chemical compound CCSC(N)=N.CCOP(O)(=O)OCC CSYSULGPHGCBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012723 sample buffer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000020183 skimmed milk Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 108010035597 sphingosine kinase Proteins 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
- 239000003656 tris buffered saline Substances 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 210000005166 vasculature Anatomy 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000001262 western blot Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/16—Amides, e.g. hydroxamic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
Definitions
- FIG. 2 DMA suppresses LPS-triggered inflammation in mouse placenta. Histologic analysis showed attenuation of LPS-linked inflammation in placentas from mice rescued from PTB by DMA.
- FIG. 3 The effect of DMA on expression of LPS-induced pro-inflammatory cytokines in a murine model of infection-associated preterm birth. DMA suppressed LPS-induced IL-
- FIG. 4 The effect of DMA on the expression of IL-10 in a murine model of infection-associated preterm birth. DMA enhanced expression of LPS-induced IL-10 in vivo.
- the subject invention is directed to the administration of DMA and its monomethylated metabolites for the treatment of inflammation and inflammatory disorders.
- the compounds can be in various formulations (including but not limited to: liquid, transdermal patches, ointments, paste, creams, gels, powders, sprays, intradermal, i.v., aerosol and nebulized forms, pills with solutions; ophthalmic formulation, ear drops, eye ointments, powders and solutions) and are useful in preventing or treating inflammatory conditions produced by diseases, drugs (natural compounds and synthetics), surgery and trauma. These diseases or conditions will include but will not be limited to those listed in Summary of the Invention.
- the treatment is intended for a variety of mammals, such as premature neonates to adult humans.
- DMA may be mixed with a pharmaceutically acceptable diluant.
- a pharmaceutically acceptable diluant include saline solution, DMSO, an alcohol, or water.
- DMSO dimethyl methacrylate
- Such carriers are well known in the art, and the specific diluant employed may be varied depending upon factors such as size of the subject being treated, treatment dose, and the like.
- a volume corresponding to 30 ⁇ g protein of the supernatant was added to a tube containing 3 ⁇ l NuPAGE® LDS sample buffer (4 ⁇ ) and 1 ⁇ l NuPAGE® sample reducing agent (10 ⁇ ). The final volume was made up to 12 ⁇ l with distilled water, and then the samples were reduced at 95° C. for 5 minutes.
- Gel electrophoresis was carried out in an XCell SureLock mini cell apparatus using 12 well NuPAGE® Bis-Tris Gel for protein separation. The gel was allowed to run for 45 minutes with 3-(N-morpholino)propanesulfonic acid (MOPS) running buffer. Proteins were then transferred to a polyvinylidene difluoride (PVDF) membrane.
- PVDF polyvinylidene difluoride
- the membranes were washed again with TBS-T three times for 15 minutes and treated with the ECL Plus Western blotting detection system. Chemifluorescence was detected by exposure to an autoradiography film. Upon development of the x-ray film, the membranes were subjected to repeated washings with TBS-T and stored in TBS-T at 4° C. The membranes were incubated with stripping buffer for 20 minutes at RT, thoroughly washed and incubated with anti-GAPDH primary antibody (1:1000) and the same procedure was repeated for the gel loading control. The protein content was quantified using Image J software (NIH). The density values of housekeeping protein GAPDH immunoblots were used for normalization.
- NIH Image J software
- This step was followed by washing the cells with 1% BSA in PBS and incubating with anti-NF- ⁇ B p65 primary antibodies overnight at 4° C. Incubation with secondary antibody using goat anti-rabbit immunoglobulin G (IgG) conjugated with Alex fluor 594 was performed for one hour. Normal blocking serum without primary antibody was used as negative control. To visualize the nuclei, cells were counterstained with DAPI. NF- ⁇ B translocation was observed under an immunofluorescence microscope (Nikon, Melville, NY).
- FIG. 2 Panel C shows a representative microscopic section of placental labyrinth collected from a mouse treated with LPS, but then rescued from preterm labor and delivery with 1.56 mg/kg DMA. Inflammatory cells are scant. In fact the histopathological picture is indistinguishable from the representative micrograph produced with a placenta removed from a negative control mouse treated with only PBS ( FIG. 2 , Panel A).
- a representative section from a mouse that developed preterm labor and delivery subsequent to treatment with LPS shows a dense collection of marginating polymorphonuclear neutrophils ( FIG. 2 , Panel B).
- the results of a graded quantitative analysis performed by three blinded observers, including a placental pathologist, are shown.
- the increase in the number of inflammatory cells in placentas from LPS plus PBS treated mice as compared to sham negative control animals is statistically significant (p ⁇ 0.01).
- the reduction in the number of leukocytes in placentas from mice treated with LPS, but ultimately rescued from PTB with DMA, as compared to mice induced to labor with LPS is highly significant (p ⁇ 0.01).
- Tissue from mice treated with LPS alone is indicated as ⁇ DMA, while tissue from mice rescued from PTB with DMA is indicated as +DMA in these figures.
- Top bands are immunoblots of cytokine proteins; bottom bands are immunoblots of gluteraldehyde phosphate dehydrogenase (GAPDH) gel loading controls.
- GPDH gluteraldehyde phosphate dehydrogenase
- FIG. 5 A demonstrates that NF- ⁇ B was primarily localized in the cytoplasm, indicated by a prominent red stain and a distinct hollow in the nucleus. However, treatment with LPS leads to translocation of NF- ⁇ B into the nucleus, as indicated by profound nuclear staining in FIG. 5 B .
- DMA at concentrations 0.01 ⁇ M and 1 ⁇ M clearly reduced nuclear staining in comparison to cells treated with LPS alone, with greater inhibition of NF- ⁇ B translocation into the nucleus noted with the higher concentration of DMA ( FIGS. 5 C and 5 D ).
- DMA did not affect cell viability at the concentrations utilized for the study, cells were also grown in the absence or presence of LPS at varying concentrations of DMA and survival was tested. No significant effect on cell viability was detected at any of these concentrations.
- DMA as an anti-inflammatory agent.
- a dose-response relationship was observed both for the effect of DMA on the percent of mice delivering and the effect of the compound on the percent of pups dropped.
- the mechanism of action of DMA is clearly suppression of an inflammatory pathway.
- DMA abolished the robust inflammatory cell infiltrate triggered by LPS.
- Immunoblot analysis revealed that expression levels of the pro-inflammatory cytokines IL-1 ⁇ , TNF ⁇ , and IL-6 in gestational tissues from LPS-induced mice are significantly decreased by DMA. Moreover, DMA increased expression of the anti-inflammatory mediator, IL-10, in these tissues. Finally, DMA prevented nuclear translocation of NfF-kB.
- DMA may function as a pro-drug. It is metabolized through sequential demethylation by liver enzymes before it is eliminated.
- the major urinary metabolites in rats are 60-70% N-monomethylacetamide (MMA), 7-10% N-hydroxymethylacetamide, 7-10%, acetamide and some residual DMA.
- MMA N-monomethylacetamide
- MMA the only metabolite in humans is MMA.
- the plasma half life of DMA is very short and DMA is undetectable in plasma after 12 hours, whereas that of its main metabolite, MMA, is much longer. In rats it is about 2.2 hours and a significant amount of MMA was still present in plasma after 24 hours (Hundley 1994).
- DMA has a clear therapeutic advantage over known anti-inflammatory agents, such as TNF ⁇ monoclonal antibodies and nitric oxide synthase inhibitors, which compromise the host's ability to fight off infections (Wadgaonkar et al. 2009).
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Rheumatology (AREA)
- Pain & Pain Management (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
The subject invention is directed to the treatment of inflammatory disorders by administration of N,N-dimethylacetamide and its mono-methylated metabolites. The compounds are useful in the management or treatment of inflammatory disorders, such as preterm birth and preterm labor, cardiovascular disorders, dermatologic diseases, musculoskeletal disorders, infection, autoimmune disorders, gastrointestinal disorders, pulmonary disorders, neurodegenerative disorders, genitourinary disorders, oncologic and endocrine disorders as well as inflammation associated with these and other disorders. The treatment may take a variety of forms and is intended for a variety of mammals, such as premature neonates to adult humans.
Description
- This application is a continuation of U.S. application Ser. No. 13/536,946, filed Jun. 28, 2012, and claims benefit of provisional application no. U.S. 61/571,433 filed on Jun. 28, 2011, the contents of which are incorporated herein by reference in their entireties.
- The subject invention is directed to the treatment of inflammation and inflammatory disorders by the administration of a compound of general formula, but not limited to N,N-dimethylacetamide (DMA) and its monomethylated metabolites. The compounds can be in various formulations (including but not limited to: liquid, transdermal patches, ointments, paste, creams, gels, powders, sprays, intradermal, i.v., aerosol and nebulized forms, pills with solutions; ophthalmic formulation, ear drops, eye ointments, powders and solutions) and are useful in preventing or treating inflammatory conditions produced by diseases, drugs (natural compounds and synthetics), surgery and trauma. These diseases or conditions will include but will not be limited to:
-
- 1) Pre-term birth/premature delivery
- 2) Cardiovascular—atherosclerotic diseases (angina pectoris and myocardial infarction), thrombosis, ischemia/reperfusion syndrome, myocarditis, angiitis; vasculitis
- 3) Dermatologic diseases—associated with inflammation such as psoriatic arthritis, dermatitis, psoriasis, eczema, acne, dermatitis herpetiformis, dermatomyositis, pemphigus vulgaris, bullous pemphigoid, Stevens-Johnson syndrome, toxic epidermal necrolysis, rosacea, scleroderma. Alopecia areata, urticaria
- 4) Musculoskeletal—rheumatoid arthritis (juvenile and adult), synovitis, osteoarthritis, degenerative joint disease, one or more connective tissue diseases, polymyalgia rheumatica, ankylosing spondolytis, polymyositis, bursitis, fibromyalgia, gout, neuralgia, chronic fatigue syndrome
- 5) Infection—Any type of infection, including, but not limited to sepsis, influenza A-induced tissue inflammation, systemic inflammatory reactive syndrome,
1 and 2, HIV, AIDS, hepatitis, impetigoherpes simplex - 6) Autoimmune—systemic lupus erythematosus, Sjogren's syndrome, Goodpasture's syndrome, Myasthenia gravis, SLE, Bechet's diseases,
- 7) Gastrointestinal—gingivitis, periodontal diseases, gastritis, inflammatory bowel diseases such as diverticulitis, celiac disease, proctitis, gastroenteritis, pancreatitis, mastocytosis, Crohn's disease, ulcerative colitis, microscopic colitis, indeterminant colitis, irritable bowel disorder, irritable bowel syndrome and distal proctitis.
- 8) Respiratory tract including allergic rhinits, nasal polyps, sinusitis, asthma, adult respiratory distress syndrome, chronic obstructive pulmonary disease, pulmonary fibrosis and pneumonia bronchitis, sarcoidosis
- 9) Neurodegenerative diseases or neurological disorders or inflammation in the CNS. These include but will not be limited to stroke, traumatic brain injury, spinal cord injury, Alzheimer's disease, fronto-temporal dementias, peripheral neuropathy, Parkinson's disease, dementia with Lewy bodies, Huntington's disease, amyotrophic lateral sclerosis, schizophrenia, Gullian-Barre syndrome, encephalitis, idiopathic inflammatory demyelinating diseases and multiple sclerosis.
- 10) Genitourinary—endometriosis, eosinophilic cystitis, glomerulonephritis, polycystic ovary disease
- 11) Cancer—including malignant neoplasia (solid and non-solid), metastasis
- 12) Endocrine—Diabetes (and one of its major consequences, obesity), thyroiditis
- 13) Other—Transplant rejection, graft-vs-host disease (acute and chronic), post-traumatic
- 14) Poison ivy and poison oak inflammation
-
FIGS. 1A-1E . DMA prevents preterm birth. A dose response relationship exists between DMA and the number of LPS-induced mice rescued from preterm delivery and between DMA and the number of pups rescued from LPS-triggered spontaneous abortion. -
FIG. 2 . DMA suppresses LPS-triggered inflammation in mouse placenta. Histologic analysis showed attenuation of LPS-linked inflammation in placentas from mice rescued from PTB by DMA. -
FIG. 3 . The effect of DMA on expression of LPS-induced pro-inflammatory cytokines in a murine model of infection-associated preterm birth. DMA suppressed LPS-induced IL-|β, IL-6 and TNFα in vivo. -
FIG. 4 . The effect of DMA on the expression of IL-10 in a murine model of infection-associated preterm birth. DMA enhanced expression of LPS-induced IL-10 in vivo. -
FIGS. 5A-5D . DMA prevents nuclear translocation of NF-κB in vitro. DMA prevented nuclear translocation of NF-κb in a cultured macrophage cell line stimulated with LPS. - The subject invention is directed to the administration of DMA and its monomethylated metabolites for the treatment of inflammation and inflammatory disorders. The compounds can be in various formulations (including but not limited to: liquid, transdermal patches, ointments, paste, creams, gels, powders, sprays, intradermal, i.v., aerosol and nebulized forms, pills with solutions; ophthalmic formulation, ear drops, eye ointments, powders and solutions) and are useful in preventing or treating inflammatory conditions produced by diseases, drugs (natural compounds and synthetics), surgery and trauma. These diseases or conditions will include but will not be limited to those listed in Summary of the Invention. The treatment is intended for a variety of mammals, such as premature neonates to adult humans.
- The effective daily dose of DMA and its monomethylated metabolites ranges from approximately 1 μg/kg to 5 mg/kg body weight. Further, the time over which DMA or one of its monomethylated metabolites is administered may vary as is well known in the art to achieve the desired results. For example, DMA may be administered as an aerosol from about 10 minutes to about 1 hour per treatment regimen, 3 times daily, or until the desired daily dosage is fully administered.
- DMA may be mixed with a pharmaceutically acceptable diluant. Such examples include saline solution, DMSO, an alcohol, or water. Such carriers are well known in the art, and the specific diluant employed may be varied depending upon factors such as size of the subject being treated, treatment dose, and the like. The above description is not intended to detail all modifications and variations of the invention. It will be appreciated by those skilled in the art that changes can be made to the embodiments described above without departing from the inventive concept. It is understood, therefore, that the invention is not limited to the particular embodiments described above, but is intended to cover modifications that are within the spirit and scope of the invention.
- A total of 48 timed-pregnant mice weighing between 27 and 36 grams were given intraperitoneal (i.p.) injections of 50 mg/kg LPS (serotype 026: B6; Sigma) dissolved in 500 μL of phosphate-buffered saline (PBS) on embryonic day (E) 15.5 (t=0 hours). Mice were then randomly assigned to the control group or one of five treatment groups. At t=−0.5 hours and t=10 hours they were injected with either 0.5 ml of PBS (control group) or 0.1 ml of increasing concentrations (6.25%, 12.5%, 25%, 50% and 100%) of N,N-dimethylacetamide (DMA) (treatment groups). Additionally, a sixth group of four animals received i.p. injections of 0.5 ml PBS in lieu of LPS at the same time points and served as sham (Table 1).
-
TABLE 1 Groups of mice in the DMA dose response studies. DMA Treatment Group Control 6.25% 12.5% 25% 50% 100% Sham Received Yes Yes Yes Yes Yes Yes No 50 mg/kg LPS Number of Mice 9 7 8 10 6 8 4 - After the injection at t=10 hours, mice were continually monitored; time of delivery of the first pup and number of pups dropped over time were recorded. Experiments were allowed to continue to t=24 hours. All mice were sacrificed by carbon dioxide asphyxiation. The mice were autopsied at the end of experiments to confirm pregnancy and to determine the number of pups retained in utero. Placenta and uteri were harvested and stored.
- Placentas were harvested immediately after necropsy and fixed in formalin. Fixed tissues were dehydrated and paraffin embedded, sectioned at 4 μm and stained with hematoxylin and eosin. All slides were examined by three blinded observers and graded for extent of inflammatory cell infiltration: slides with an average number of 0-5 neutrophils per high power field observed with the 40× objective in the three most active fields found were graded 1; slides with greater than an average of 6 to 50 neutrophils in the three most active high power fields were graded 2; and slides with greater than 50 neutrophils on average in the three most active high power fields were graded 3.
- Frozen placentas and uteri from each group were allowed to thaw on ice. Each tissue was then transferred to a Kontes glass homogenizer (Fisher Scientific) and 0.3 ml ice cold lysis buffer was added. Samples were homogenized manually on ice for two minutes at intervals of 15 minutes. This process was continued for a period of two hours. The probe was thoroughly cleaned after each sample. The homogenate was transferred to 1 ml eppendorf tubes and centrifuged at 10,000 rpm for five minutes. The protein content of the supernatant was determined using Bradford assay with bovine serum albumin as the protein standard.
- A volume corresponding to 30 μg protein of the supernatant was added to a tube containing 3 μl NuPAGE® LDS sample buffer (4×) and 1 μl NuPAGE® sample reducing agent (10×). The final volume was made up to 12 μl with distilled water, and then the samples were reduced at 95° C. for 5 minutes. Gel electrophoresis was carried out in an XCell SureLock mini cell apparatus using 12 well NuPAGE® Bis-Tris Gel for protein separation. The gel was allowed to run for 45 minutes with 3-(N-morpholino)propanesulfonic acid (MOPS) running buffer. Proteins were then transferred to a polyvinylidene difluoride (PVDF) membrane.
- The PVDF membranes were wetted with Tris-buffered saline with 0.1% Tween-20 (TBS-T), pH 7.8 for ten minutes, and were then blocked with 5% skim milk powder in TBS-T solution for two hours. Next, the membranes were incubated with primary antibodies diluted in the blocker solution overnight at 4° C. They were then washed with TBS-T thrice at intervals of 15 minutes at room temperature (RT). The membranes were incubated with a 1:1000 dilution of secondary antibody, anti-rabbit IgG, horseradish peroxidase-linked whole antibody, in blocker solution at RT for two hours. The membranes were washed again with TBS-T three times for 15 minutes and treated with the ECL Plus Western blotting detection system. Chemifluorescence was detected by exposure to an autoradiography film. Upon development of the x-ray film, the membranes were subjected to repeated washings with TBS-T and stored in TBS-T at 4° C. The membranes were incubated with stripping buffer for 20 minutes at RT, thoroughly washed and incubated with anti-GAPDH primary antibody (1:1000) and the same procedure was repeated for the gel loading control. The protein content was quantified using Image J software (NIH). The density values of housekeeping protein GAPDH immunoblots were used for normalization.
- Immunocytochemical analysis was employed to assess the intracellular localization of NF-κB in the absence or presence of graded concentrations of DMA. RAW 264.7 cells were seeded in 12-well plates and were allowed to adhere overnight at 37° C. Cells were grown with or without LPS (100 ng/ml) in the presence or absence of 0.01 or 1 μM DMA for two hours. After treatments, cells were fixed with 2% phosphate-buffered formaldehyde (pH 7.4) for 15 min and washed three times with PBS. Cells were then permeabilized with 0.2% Triton X-100 and nonspecific binding sites were blocked with 10% normal goat serum (NGS) for 20 min. This step was followed by washing the cells with 1% BSA in PBS and incubating with anti-NF-κB p65 primary antibodies overnight at 4° C. Incubation with secondary antibody using goat anti-rabbit immunoglobulin G (IgG) conjugated with Alex fluor 594 was performed for one hour. Normal blocking serum without primary antibody was used as negative control. To visualize the nuclei, cells were counterstained with DAPI. NF-κB translocation was observed under an immunofluorescence microscope (Nikon, Melville, NY).
- Timed pregnant E15.5 C57BL/6 control mice treated with LPS and PBS injections (n=9) developed preterm labor and delivery at a rate of 89% (eight out of nine mice). Among the eight mice responding to the LPS, the mean time of delivery was 14.3 hours. The effect of DMA on rates of preterm birth was tested by treating additional E15.5 C57BL/6 mice with a series of various doses of DMA. At the two highest doses, 3.1 and 1.56 mg/kg, 0 out of 8 and 0 out of 6 mice delivered, respectively. Thus 100% prevention of PTB was achieved at the highest doses of DMA. At the next dose of 0.78 mg/kg, 2 out of 10 (20%) mice delivered with the average time of delivery being 19.4 hours. At 0.39 mg/kg, 3 out of 8 (37.5%) mice delivered with 20.1 hours as the average time of delivery. At the lowest dose (0.2 mg/kg), 5 out of 7 (71.43%) mice delivered and the average time of delivery was 16.1 hours (Table 2;
FIG. 1A ). - Statistically significant differences in the percent mice delivering in the control group and in the groups treated with all the doses of DMA except the lowest one were found (p<0.05), using Dunnett's multiple comparison test with the number of mice reaching preterm delivery decreasing as the dose of DMA was increased. Furthermore, one way ANOVA revealed statistically significant differences in the average delivery times among those mice developing PTB in the control group and the groups treated with all the DMA doses but the lowest in a dose dependent fashion (p<0.05). Using the Fisher exact test to compare the number of animals delivering prematurely in the DMA treated groups (3.1, 1.56, 0.78, 0.39 and 0.2 mg/kg) to the LPS control group, statistical significance was reached for all groups except the one receiving the lowest dose (p<0.001, p<0.01, p<0.01, p<0.05; p NS, respectively). At 0.2 mg/kg there was no significant difference in the number of mice delivering vs. control (p=0.5); hence, we did not decrease the DMA dose further. The statistical significance of the effect of all but the lowest dose of DMA on the rate of premature deliveries over time was confirmed by the log-rank (Mantel-Cox) or Gehan-Breslow-Wilcoxon test. P values for the five doses of DMA used, from highest to lowest were p<0.001, p<0.001, p<0.05, p<0.05, p NS, respectively. Finally, a classical dose-response relationship between DMA and the number of mice rescued from preterm birth is observed (
FIG. 1B ). - In addition to its dramatic influence on rates of LPS induced PTB, DMA had an even more impressive effect on rates of pups lost to spontaneous preterm delivery. Among the LPS treated controls (n=69 pups), 30 pups (43.5%) were lost secondary to preterm delivery. No pups were lost after treatment with 3.1 mg/kg DMA (n=52) or with 1.56 mg/kg DMA (n=47). After treatment with 0.78 mg/kg, 4 out of 73 (5.5%) pups were spontaneously aborted. At 0.39 mg/kg of DMA, 5 out of 46 (10.9%) were lost and 12 out of 47 (25.5%) pups were dropped at 0.2 mg/kg (Table 2,
FIG. 1C ). These results are also represented with Kaplan Meier survival curves (FIG. 1D ). - By Chi-Square analysis, the number of pups spontaneously aborted in the DMA treated groups was significantly lower than in the control group (p<0.001) for all doses except the lowest dose, 0.0.2 mg/kg DMA. Moreover, Dunnett's multiple comparison test indicated that there was a statistically significant difference in the percent pups lost at the different doses vs. control (p<0.05) (
FIG. 1C ). The effect of all doses of DMA on the rate of pups being prematurely delivered was significant by log-rank test (p<0.0001, p<0.0001, p<0.0001, p<0.0001 and p<0.01, corresponding to highest to lowest doses). Finally, a classic dose-response relationship between DMA and the number of pups rescued from spontaneous abortion is observed (FIG. 1E ). - Harvested placentas from mice subjected to sham injections (n=4), LPS plus PBS (n=4) and LPS plus DMA (n=4) showed vastly different degrees of intravascular inflammatory cell recruitment histopathologically. In
FIG. 2 , Panel C shows a representative microscopic section of placental labyrinth collected from a mouse treated with LPS, but then rescued from preterm labor and delivery with 1.56 mg/kg DMA. Inflammatory cells are scant. In fact the histopathological picture is indistinguishable from the representative micrograph produced with a placenta removed from a negative control mouse treated with only PBS (FIG. 2 , Panel A). A representative section from a mouse that developed preterm labor and delivery subsequent to treatment with LPS, in contrast, shows a dense collection of marginating polymorphonuclear neutrophils (FIG. 2 , Panel B). The results of a graded quantitative analysis performed by three blinded observers, including a placental pathologist, are shown. The increase in the number of inflammatory cells in placentas from LPS plus PBS treated mice as compared to sham negative control animals is statistically significant (p<0.01). Similarly, the reduction in the number of leukocytes in placentas from mice treated with LPS, but ultimately rescued from PTB with DMA, as compared to mice induced to labor with LPS, is highly significant (p<0.01). - Several pro-inflammatory mediators were selected and tested for changes in expression at the protein level resulting from DMA rescue from LPS induced PTB. As compared to levels of expression in placental tissue from mice that developed LPS-triggered PTB, IL-1p expression in placentas from DMA rescued mice was significantly reduced (p<0.01) (
FIG. 3 ). Similar results were found for TNF-α (p<0.001) and IL-6 (p<0.05) (FIG. 3 ). Interestingly, expression of the regulatory cytokine IL-10 increased significantly in placental tissue harvested from mice rescued from PTB with DMA (p<0.001) (FIG. 4 ). Tissue from mice treated with LPS alone is indicated as −DMA, while tissue from mice rescued from PTB with DMA is indicated as +DMA in these figures. Top bands are immunoblots of cytokine proteins; bottom bands are immunoblots of gluteraldehyde phosphate dehydrogenase (GAPDH) gel loading controls. - LPS stimulation in RAW 264.7 cells induces activation of the NF-κB signaling pathway, which is critical in cytokine release (Ulloa et al., 2002). To determine whether DMA plays a role in the NF-κB signaling pathway, NF-κB translocation was assessed by immunostaining the p65 unit of NF-κB.
FIG. 5A demonstrates that NF-κB was primarily localized in the cytoplasm, indicated by a prominent red stain and a distinct hollow in the nucleus. However, treatment with LPS leads to translocation of NF-κB into the nucleus, as indicated by profound nuclear staining inFIG. 5B . DMA at concentrations 0.01 μM and 1 μM clearly reduced nuclear staining in comparison to cells treated with LPS alone, with greater inhibition of NF-κB translocation into the nucleus noted with the higher concentration of DMA (FIGS. 5C and 5D ). To confirm that DMA did not affect cell viability at the concentrations utilized for the study, cells were also grown in the absence or presence of LPS at varying concentrations of DMA and survival was tested. No significant effect on cell viability was detected at any of these concentrations. - The data presented show a clear role for DMA as an anti-inflammatory agent. In the infection-associated preterm birth bioassay, a dose-response relationship was observed both for the effect of DMA on the percent of mice delivering and the effect of the compound on the percent of pups dropped. The mechanism of action of DMA is clearly suppression of an inflammatory pathway. In the histological analysis of placental tissues, DMA abolished the robust inflammatory cell infiltrate triggered by LPS.
- Immunoblot analysis revealed that expression levels of the pro-inflammatory cytokines IL-1β, TNFα, and IL-6 in gestational tissues from LPS-induced mice are significantly decreased by DMA. Moreover, DMA increased expression of the anti-inflammatory mediator, IL-10, in these tissues. Finally, DMA prevented nuclear translocation of NfF-kB.
- DMA is currently used as an organic solvent, a cryopreservative for platelets (Odink et al. 1977) and a solvent for a novel anti-retroviral agent (Aungst et al. 2000). DMA, administered i.p. for three days at doses of 150 mg/kg or 300 mg/kg, does not affect P450-dependent monooxygenase or phase II enzyme activities. MMA also did not induce any hepatic monooxygenases in rat. A study by Beyhl and Linder (1981) also showed that in liver homogenate DMA had no effect on liver mixed-function oxidase and cytochrome c reductase activities. Importantly, it is given in intravenous busulfan to pediatric oncologic patients at doses many-fold higher than those shown to suppress inflammation in this work with no adverse effect (Hempel 2007).
- DMA may function as a pro-drug. It is metabolized through sequential demethylation by liver enzymes before it is eliminated. The major urinary metabolites in rats are 60-70% N-monomethylacetamide (MMA), 7-10% N-hydroxymethylacetamide, 7-10%, acetamide and some residual DMA. However, the only metabolite in humans is MMA. The plasma half life of DMA is very short and DMA is undetectable in plasma after 12 hours, whereas that of its main metabolite, MMA, is much longer. In rats it is about 2.2 hours and a significant amount of MMA was still present in plasma after 24 hours (Hundley 1994).
- A method of attenuating the excessive inflammatory response triggered by the toll-like receptors represents a very valuable, novel therapeutic approach to a variety of inflammatory disorders (Weighardt and Holzmann 2007), including sepsis (Puneet et al. 2010). DMA has a clear therapeutic advantage over known anti-inflammatory agents, such as TNFα monoclonal antibodies and nitric oxide synthase inhibitors, which compromise the host's ability to fight off infections (Wadgaonkar et al. 2009).
- Many inflammatory disorders are likely to be amenable to treatment with DMA without compromise of the host's immune system. In fact bacterial clearance is improved when over-exuberant inflammation is held in check as is evidenced by the favorable effect obtained when TLR-linked sphingosine kinase is inhibited (Puneet et al. 2010). As inflammation is implicated in an extremely broad spectrum of disorders, ranging from cancer to neurodegenerative diseases, the potential clinical impact of this molecule as an anti-inflammatory agent is striking.
-
TABLE 2 Effect of varying doses of DMA on preterm birth. DMA Treatment (mg/kg) Group Control 0.2 0.39 0.78 1.56 3.1 Sham Received Yes Yes Yes Yes Yes Yes No 50 mg/kg LPS Number of Mice 9 7 8 10 6 8 4 Number of mice 8 5 3* 2** 0** 0*** 0 that delivered Number of pups 30 12 5*** 4*** 0*** 0*** 0 dropped Number of pups 39 35 41 69 47 52 0 retained -
- Aungst B J, Nguyen N H, et al. Pharm Res 17:1175-1180, 2000.
- Beyhl F E and Lindner E. Food Cosmet Tox 19:627-629, 1981.
- Hempel G, Oechtering D, et al. J Clin Onc 25:1772-1778, 2007.
- Hundley S G, Leider P H et al. Tox Lett 73:213-215, 1994.
- Odink J and Sprokholt R. Cryobiology 14:519-528, 1977.
- Puneet P, Yap C T et al. Science 328:1290-1294, 2010.
- Ulloa M, Ochani M, et al. PNAS 99:12351-12356, 2002.
- Wadgaonkar R, Patel V, et al. Am J Physiol Lung Cell Molec Phys 296:L603-L613, 2009.
- Weighardt H and Holzmann B. Immunobiol 212:715-722, 2007.
Claims (25)
1. A method of treating inflammation, or a condition associated with inflammation, by administration of DMA or one of its monomethylated metabolites.
2. A method of claim 1 , wherein the inflammation is associated with preterm birth.
3. A method of claim 1 , wherein the inflammation is associated with preterm labor.
4. A method of claim 1 , wherein the inflammation is associated with cardiovascular disease, including atherosclerotic diseases (angina pectoris and myocardial infarction), thrombosis, ischemia/reperfusion syndrome, myocarditis, angiitis and vasculitis.
5. A method of claim 1 , wherein the inflammation is associated with dermatologic diseases, such as psoriatic arthritis, dermatitis, psoriasis, eczema, acne, dermatitis herpetiformis, dermatomyositis, pemphigus vulgaris, bullous pemphigoid, Stevens-Johnson syndrome, toxic epidermal necrolysis, rosacea, scleroderma. Alopecia areata and urticaria.
6. A method of claim 1 , wherein the inflammation is associated with musculoskeletal disorders, including rheumatoid arthritis (juvenile and adult), synovitis, osteoarthritis, degenerative joint disease, one or more connective tissue diseases, polymyalgia rheumatica, ankylosing spondolytis, polymyositis, bursitis, fibromyalgia, gout, neuralgia, chronic fatigue syndrome.
7. A method of claim 1 , wherein the inflammation is associated with infection, including sepsis, influenza A-induced tissue inflammation, systemic inflammatory reactive syndrome, herpes simplex 1 and 2, HIV, AIDS, hepatitis, impetigo.
8. A method of claim 1 , wherein the inflammation is associated with autoimmune disorders, including systemic lupus erythematosus, Sjogren's syndrome, Goodpasture's syndrome, Myasthenia gravis, SLE, Bechet's diseases.
9. A method of claim 1 , wherein the inflammation is associated with gastrointestinal disorders, including gingivitis, periodontal diseases, gastritis, inflammatory bowel diseases such as diverticulitis, celiac disease, proctitis, gastroenteritis, pancreatitis, mastocytosis, Crohn's disease, ulcerative colitis, microscopic colitis, indeterminant colitis, irritable bowel disorder, irritable bowel syndrome and distal proctitis.
10. A method of claim 1 , wherein the inflammation is associated with respiratory tract disorders, including allergic rhinits, nasal polyps, sinusitis, asthma, adult respiratory distress syndrome, chronic obstructive pulmonary disease, pulmonary fibrosis and pneumonia bronchitis, sarcoidosis.
11. A method of claim 1 , wherein the inflammation is associated with neurodegenerative diseases or neurological disorders or inflammation in the CNS. These include but will not be limited to stroke, traumatic brain injury, spinal cord injury, Alzheimer's disease, fronto-temporal dementias, peripheral neuropathy, Parkinson's disease, dementia with Lewy bodies, Huntington's disease, amyotrophic lateral sclerosis, schizophrenia, Gullian-Barre syndrome, encephalitis, idiopathic inflammatory demyelinating diseases and multiple sclerosis.
12. A method of claim 1 , wherein the inflammation is associated with genitourinary disorders, including endometriosis, eosinophilic cystitis, glomerulonephritis, polycystic ovary disease.
13. A method of claim 1 , wherein the inflammation is associated with obesity.
14. A method of claim 1 , wherein the inflammation induces cachexia.
15. A method of claim 1 , wherein the inflammation is associated with poison ivy, poison oak and poison sumac.
16. A method of claim 1 , wherein the inflammation is associated with administration of drugs (natural compounds and synthetics).
17. A method of claim 1 , wherein the inflammation is associated with surgery.
18. A method of claim 1 , wherein the inflammation is associated with neoplasia.
19. A method of claim 1 , wherein the condition associated with inflammation is neoplasia, both benign and malignant, solid and non-solid, including metastatic lesions.
20. A method of claim 1 , wherein the condition associated with inflammation is an endocrine disorder, including diabetes mellitus and thyroiditis.
21. A method of claim 1 , wherein the condition associated with inflammation is obesity.
22. A method of claim 1 , wherein the condition associated with inflammation is transplant rejection.
23. A method of claim 1 , wherein the condition associated with inflammation is graft-vs-host disease (acute and chronic).
24. A method of claim 1 , wherein the condition associated with inflammation is trauma.
25. A method of claim 1 , wherein the condition associated with inflammation is immune reconstitution disease.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/207,668 US20230404948A1 (en) | 2011-06-28 | 2023-06-08 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
| US18/920,696 US20250041250A1 (en) | 2011-06-28 | 2024-10-18 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161571433P | 2011-06-28 | 2011-06-28 | |
| US13/536,946 US11717499B2 (en) | 2011-06-28 | 2012-06-28 | Administration of N,N-dimethylacetamide for the treatment of preterm birth |
| US18/207,668 US20230404948A1 (en) | 2011-06-28 | 2023-06-08 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/536,946 Continuation US11717499B2 (en) | 2011-06-28 | 2012-06-28 | Administration of N,N-dimethylacetamide for the treatment of preterm birth |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/920,696 Continuation US20250041250A1 (en) | 2011-06-28 | 2024-10-18 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20230404948A1 true US20230404948A1 (en) | 2023-12-21 |
Family
ID=49778762
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/536,946 Active 2034-11-26 US11717499B2 (en) | 2011-06-28 | 2012-06-28 | Administration of N,N-dimethylacetamide for the treatment of preterm birth |
| US18/207,668 Abandoned US20230404948A1 (en) | 2011-06-28 | 2023-06-08 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
| US18/920,696 Pending US20250041250A1 (en) | 2011-06-28 | 2024-10-18 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/536,946 Active 2034-11-26 US11717499B2 (en) | 2011-06-28 | 2012-06-28 | Administration of N,N-dimethylacetamide for the treatment of preterm birth |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/920,696 Pending US20250041250A1 (en) | 2011-06-28 | 2024-10-18 | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders |
Country Status (1)
| Country | Link |
|---|---|
| US (3) | US11717499B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016207204A1 (en) * | 2015-06-23 | 2016-12-29 | Universität Zürich | N-alkylamides for treatment of bromodomain protein related diseases |
| CN106729448A (en) * | 2017-02-22 | 2017-05-31 | 中国中医科学院 | A kind of pharmaceutical composition of immunologic reconstitution for HIV and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3068145A (en) * | 1958-06-17 | 1962-12-11 | Upjohn Co | Topical pharmaceutical formulations containing n, n-dimethylacetamide as an anti-inflammatory ingredient |
| US3070502A (en) * | 1958-06-17 | 1962-12-25 | Upjohn Co | Parenteral aqueous tetracycline composition containing n, n-dimethylacetamide solvent |
| US3627886A (en) * | 1968-04-15 | 1971-12-14 | Hoffmann La Roche | Methods of solubilizing coumermycin employing urea, dimethylacetamide or mixtures thereof |
| EP0663827A4 (en) * | 1992-10-07 | 1995-11-15 | Merck & Co Inc | TOCOLYTIC OXYTOCIN RECEPTOR ANTAGONISTS. |
| EP2198875A1 (en) * | 2003-10-24 | 2010-06-23 | Nora, LLC | A method for reducing the likelihood of preterm labour in a subject in need thereof |
-
2012
- 2012-06-28 US US13/536,946 patent/US11717499B2/en active Active
-
2023
- 2023-06-08 US US18/207,668 patent/US20230404948A1/en not_active Abandoned
-
2024
- 2024-10-18 US US18/920,696 patent/US20250041250A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US11717499B2 (en) | 2023-08-08 |
| US20250041250A1 (en) | 2025-02-06 |
| US20140005272A1 (en) | 2014-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20250041250A1 (en) | Administration of n,n-dimethylacetamide and its monomethylated metabolites for the treatment of inflammatory disorders | |
| US11597706B2 (en) | Compounds and compositions for treating conditions associated with NLRP activity | |
| Zhou et al. | Creation of a nanoformulated cabotegravir prodrug with improved antiretroviral profiles | |
| US8669257B2 (en) | Phenazine derivatives and uses thereof as potassium channel modulators | |
| US9283210B2 (en) | Amorphous mirabegron and processes for crystal forms of mirabegron | |
| KR20180049019A (en) | Compounds for the treatment of diseases associated with reactive oxygen species (ROS) production in mitochondria | |
| JPH10500661A (en) | Rapamycin derivative | |
| US20210106582A1 (en) | Compounds and pharmaceutical compositions thereof for use in the treatment of fibrotic diseases | |
| US20220249450A1 (en) | Inhibitors of Mitochondrial Fission | |
| US20170129869A1 (en) | Amorphous form of eliglustat hemitartarate | |
| UA120851C2 (en) | PRAR COMPOUNDS FOR USE IN THE TREATMENT OF FIBROUS DISEASES | |
| EP2928299B1 (en) | Treatment of chronic dermal inflammatory with norketotifen | |
| EP3659593A1 (en) | Trmt2a inhibitors for use in the treatment of polyglutamine diseases | |
| UA65573C2 (en) | Rapamycin dosage forms for oral administration | |
| DE60133273T2 (en) | INHIBITORS OF PEPTIDE DEFORMYLASE | |
| US20180243274A1 (en) | Antibacterial compositions | |
| US9789097B2 (en) | Pharmaceutical compositions comprising antibacterial agents | |
| Grenda | Effects of steroid avoidance and novel protocols on growth in paediatric renal transplant patients | |
| US11185548B2 (en) | Inhibitors of cytochrome P450 family 7 subfamily B member 1 (CYP7B1) for use in treating diseases | |
| CN117860759A (en) | Application of heterocyclic compound in resisting mycobacterium abscessus | |
| Hansen et al. | In vitro embryotoxicity of carbamazepine and carbamazepine‐10, 11‐epoxide | |
| US20170065566A1 (en) | Pharmaceutical combinations comprising antibacterial agents | |
| EP3116545A1 (en) | Pharmaceutical compositions comprising antibacterial agents | |
| US7504415B2 (en) | Therapeutic agent for glomerular disease | |
| US9827235B2 (en) | Pharmaceutical compositions comprising antibacterial agents |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |