CN110818684B - 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途 - Google Patents
一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途 Download PDFInfo
- Publication number
- CN110818684B CN110818684B CN201910949128.5A CN201910949128A CN110818684B CN 110818684 B CN110818684 B CN 110818684B CN 201910949128 A CN201910949128 A CN 201910949128A CN 110818684 B CN110818684 B CN 110818684B
- Authority
- CN
- China
- Prior art keywords
- staphylococcus aureus
- biofilm formation
- drug
- inhibitor
- virulence
- 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.)
- Active
Links
- 241000191967 Staphylococcus aureus Species 0.000 title claims abstract description 50
- 230000032770 biofilm formation Effects 0.000 title claims abstract description 28
- 230000001018 virulence Effects 0.000 title claims abstract description 17
- 239000003112 inhibitor Substances 0.000 title claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 29
- 229940079593 drug Drugs 0.000 claims abstract description 28
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000000645 desinfectant Substances 0.000 claims abstract description 7
- 201000010099 disease Diseases 0.000 claims abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 10
- 231100000419 toxicity Toxicity 0.000 claims description 10
- 230000001988 toxicity Effects 0.000 claims description 10
- 230000000941 anti-staphylcoccal effect Effects 0.000 abstract 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 27
- 150000001875 compounds Chemical class 0.000 description 15
- 241000894006 Bacteria Species 0.000 description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000002609 medium Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 230000001580 bacterial effect Effects 0.000 description 9
- -1 small molecule compound Chemical class 0.000 description 9
- 210000003743 erythrocyte Anatomy 0.000 description 8
- 239000006228 supernatant Substances 0.000 description 8
- 241000699670 Mus sp. Species 0.000 description 7
- 210000004027 cell Anatomy 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- JAUOIFJMECXRGI-UHFFFAOYSA-N Neoclaritin Chemical compound C=1C(Cl)=CC=C2C=1CCC1=CC=CN=C1C2=C1CCNCC1 JAUOIFJMECXRGI-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 229960001271 desloratadine Drugs 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 230000012010 growth Effects 0.000 description 6
- 230000002949 hemolytic effect Effects 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 5
- FESUWJXMUJDPKE-UHFFFAOYSA-N 3-sulfanylpropanoyl chloride Chemical compound SCCC(Cl)=O FESUWJXMUJDPKE-UHFFFAOYSA-N 0.000 description 5
- 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 5
- 239000002953 phosphate buffered saline Substances 0.000 description 5
- 210000003501 vero cell Anatomy 0.000 description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 238000000692 Student's t-test Methods 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 230000000845 anti-microbial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000004083 survival effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000001052 yellow pigment Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 2
- 238000011746 C57BL/6J (JAX™ mouse strain) Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 2
- GSNUFIFRDBKVIE-UHFFFAOYSA-N DMF Natural products CC1=CC=C(C)O1 GSNUFIFRDBKVIE-UHFFFAOYSA-N 0.000 description 2
- 238000002965 ELISA Methods 0.000 description 2
- 206010018910 Haemolysis Diseases 0.000 description 2
- 241000699666 Mus <mouse, genus> Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 108010059993 Vancomycin Proteins 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 206010014665 endocarditis Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008588 hemolysis Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 229960003907 linezolid Drugs 0.000 description 2
- TYZROVQLWOKYKF-ZDUSSCGKSA-N linezolid Chemical compound O=C1O[C@@H](CNC(=O)C)CN1C(C=C1F)=CC=C1N1CCOCC1 TYZROVQLWOKYKF-ZDUSSCGKSA-N 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 210000004962 mammalian cell Anatomy 0.000 description 2
- 239000013642 negative control Substances 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 239000013641 positive control Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229960003165 vancomycin Drugs 0.000 description 2
- MYPYJXKWCTUITO-LYRMYLQWSA-N vancomycin Chemical compound O([C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=C2C=C3C=C1OC1=CC=C(C=C1Cl)[C@@H](O)[C@H](C(N[C@@H](CC(N)=O)C(=O)N[C@H]3C(=O)N[C@H]1C(=O)N[C@H](C(N[C@@H](C3=CC(O)=CC(O)=C3C=3C(O)=CC=C1C=3)C(O)=O)=O)[C@H](O)C1=CC=C(C(=C1)Cl)O2)=O)NC(=O)[C@@H](CC(C)C)NC)[C@H]1C[C@](C)(N)[C@H](O)[C@H](C)O1 MYPYJXKWCTUITO-LYRMYLQWSA-N 0.000 description 2
- MYPYJXKWCTUITO-UHFFFAOYSA-N vancomycin Natural products O1C(C(=C2)Cl)=CC=C2C(O)C(C(NC(C2=CC(O)=CC(O)=C2C=2C(O)=CC=C3C=2)C(O)=O)=O)NC(=O)C3NC(=O)C2NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(CC(C)C)NC)C(O)C(C=C3Cl)=CC=C3OC3=CC2=CC1=C3OC1OC(CO)C(O)C(O)C1OC1CC(C)(N)C(O)C(C)O1 MYPYJXKWCTUITO-UHFFFAOYSA-N 0.000 description 2
- 208000002874 Acne Vulgaris Diseases 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 101710089384 Extracellular protease Proteins 0.000 description 1
- 241000192125 Firmicutes Species 0.000 description 1
- 206010016936 Folliculitis Diseases 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 108010006464 Hemolysin Proteins Proteins 0.000 description 1
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 108010014603 Leukocidins Proteins 0.000 description 1
- 208000032376 Lung infection Diseases 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- RJQXTJLFIWVMTO-TYNCELHUSA-N Methicillin Chemical compound COC1=CC=CC(OC)=C1C(=O)N[C@@H]1C(=O)N2[C@@H](C(O)=O)C(C)(C)S[C@@H]21 RJQXTJLFIWVMTO-TYNCELHUSA-N 0.000 description 1
- 208000037942 Methicillin-resistant Staphylococcus aureus infection Diseases 0.000 description 1
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 206010031252 Osteomyelitis Diseases 0.000 description 1
- 208000037581 Persistent Infection Diseases 0.000 description 1
- 206010057249 Phagocytosis Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 206010040070 Septic Shock Diseases 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 229960001139 cefazolin Drugs 0.000 description 1
- MLYYVTUWGNIJIB-BXKDBHETSA-N cefazolin Chemical compound S1C(C)=NN=C1SCC1=C(C(O)=O)N2C(=O)[C@@H](NC(=O)CN3N=NN=C3)[C@H]2SC1 MLYYVTUWGNIJIB-BXKDBHETSA-N 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 239000006285 cell suspension Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229940110456 cocoa butter Drugs 0.000 description 1
- 235000019868 cocoa butter Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003235 crystal violet staining Methods 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 239000007884 disintegrant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000003228 hemolysin Substances 0.000 description 1
- 208000008025 hordeolum Diseases 0.000 description 1
- 210000002865 immune cell Anatomy 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000007918 intramuscular administration Methods 0.000 description 1
- 239000007928 intraperitoneal injection Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000008297 liquid dosage form Substances 0.000 description 1
- 238000001325 log-rank test Methods 0.000 description 1
- 229960003088 loratadine Drugs 0.000 description 1
- JCCNYMKQOSZNPW-UHFFFAOYSA-N loratadine Chemical compound C1CN(C(=O)OCC)CCC1=C1C2=NC=CC=C2CCC2=CC(Cl)=CC=C21 JCCNYMKQOSZNPW-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001394 metastastic effect Effects 0.000 description 1
- 206010061289 metastatic neoplasm Diseases 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229960003085 meticillin Drugs 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229960001412 pentobarbital Drugs 0.000 description 1
- WEXRUCMBJFQVBZ-UHFFFAOYSA-N pentobarbital Chemical compound CCCC(C)C1(CC)C(=O)NC(=O)NC1=O WEXRUCMBJFQVBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008823 permeabilization Effects 0.000 description 1
- 230000008782 phagocytosis Effects 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229940068968 polysorbate 80 Drugs 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000036303 septic shock Effects 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007909 solid dosage form Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000007939 sustained release tablet Substances 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 239000000304 virulence factor Substances 0.000 description 1
- 230000007923 virulence factor Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
- A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
- Oncology (AREA)
- Animal Behavior & Ethology (AREA)
- Communicable Diseases (AREA)
- Public Health (AREA)
- General Chemical & Material Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明提供了一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo‑SH及其用途,所述抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo‑SH的化学结构式如式(1)所示。本发明的抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo‑SH,对金黄色葡萄球菌毒力和生物被膜形成具有抑制作用,可用于制备抑制金黄色葡萄球菌毒力和生物被膜形成的药物,或制备治疗由金黄色葡萄球菌引起的疾病的药物,或制成医疗器械或医疗器具消毒液。
Description
技术领域
本发明属于生物技术领域,尤其涉及一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途。
背景技术
金黄色葡萄球菌可感染人体不同部位而导致多种感染性疾病,从常见的毛囊炎、痤疮、麦粒肿等皮肤疾病,到肺炎、心内膜炎、骨髓炎和其他转移性并发症等深度、致命性疾病。金黄色葡萄球菌入侵宿主并诱发宿主感染的过程中,能够分泌多种毒力因子如溶血素、胞外蛋白酶、杀白细胞素和酚溶解性蛋白等,从而协助其对宿主的入侵及损伤,进而诱发疾病的发生。目前随着抗菌药物的广泛使用,耐药菌尤其是耐甲氧西林金黄色葡萄球菌(MRSA)的出现,给临床治疗带来了困难。万古霉素和利奈唑胺是现在极少数能够治疗MRSA感染的抗菌药物,但国内外已发现越来越多对万古霉素不敏感的金黄色葡萄球菌(VISA/hVISA)和利奈唑胺耐药株,使临床抗菌药物的选择受到严重限制。此外,金黄色葡萄球菌还可粘附在人体组织细胞或医用植入材料的表面形成一个由胞外多糖黏附分子、蛋白质、磷壁酸及胞外DNA(eDNA)等构成的生物被膜结构,降低细菌对抗菌药物的敏感性,并逃避宿主免疫细胞的攻击和吞噬,从而造成慢性感染和迁延不愈。严峻的问题是近年来随着多种导管、透析技术、假体关节等医用植入材料的广泛应用,金黄色葡萄球菌生物被膜相关的医院内感染日趋增多。目前研究发现MRSA等金黄色葡萄球菌耐药株也具有较强的毒力,可使患者发生感染性休克和心内膜炎等严重感染性疾病从而引发较高的病死率,并发现这些耐药株也具有较强的生物被膜形成能力。因此为减少这些菌株感染引起的患者死亡,抑制金黄色葡萄球菌毒力和生物被膜形成已成为近年来亟待解决细菌相关的难点和热点问题之一。
发明内容
针对以上技术问题,本发明公开了一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途,
对此,本发明采用的技术方案为:
一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH,其化学结构式如下所示:
其中,Lo-SH其分子式为C22H23CIN2OS,常温下为无色无臭的透明液体,具有高沸点、热稳定性好、非质子的特性,能溶于乙醇、丙醇、苯和氯仿等大多数有机物。该Lo-SH为小分子化合物。该小分子化合物Lo-SH在体外及体内能明显抑制金黄色葡萄球菌的毒力和生物被膜形成;所述的小分子化合物不影响细菌的生长;对哺乳动物细胞无明显毒性,且对人红细胞无明显的溶血作用。
本发明中,所述的小分子化合物Lo-SH可用于配制成医疗器械或医疗器具消毒液,还可进一步进行化学结构的改造,制备抗革兰阳性菌感染的新药物。
本发明还公开了一种抗金黄色葡萄球菌毒力和生物被膜形成的药物,其包括如上所述的抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH。
进一步的,所述药物为液体,药物中所述Lo-SH的浓度不小于25μM。
本发明还公开了Lo-SH用于抗金黄色葡萄球菌毒力和生物被膜形成的药物中的用途,所述Lo-SH的化学结构式如式(1)所示。
进一步的,所述药物为液体,药物中所述Lo-SH的浓度不小于25μM。
本发明还公开了Lo-SH用于制备治疗由金黄色葡萄球菌引起的疾病的药物中的用途,所述Lo-SH的化学结构式如式(1)所示。
本发明还公开了Lo-SH用于制备抗金黄色葡萄球菌毒力和生物被膜形成的药物中的应用,所述药物包括Lo-SH,所述Lo-SH的化学结构式如式(1)所示。
进一步的,所述药物为液体,药物中所述Lo-SH的浓度不小于25μM。
本发明还公开了Lo-SH用于制备制成医疗器械或医疗器具的消毒液的应用,所述消毒液包括Lo-SH,所述Lo-SH的化学结构式如式(1)所示。
进一步的,所述Lo-SH采用以下反应路线制备得到,即将地氯雷他定与巯基丙酸进行酰胺化反应,脱水得到Lo-SH。优选的,反应温度高不低于150度。
进一步的,地氯雷他定与巯基丙酸的摩尔比为1:1~1.5。
或者采用如下反应路线,即将地氯雷他定与巯基丙酰氯溶于有机溶剂中,在缚酸剂的作用在,在-5~60度下进行反应。
进一步的,其中有机溶剂包括二氯甲烷、三氯甲烷、丙酮、乙腈、四氢呋喃、DMF、吡啶或甲苯中的一种。
进一步的,所述缚酸剂为包括三乙胺、砒陡、叔丁醇钾、甲醇钠、乙醇钠、碳酸钾、碳酸钠、碳酸氢钾、碳酸氢钠、氢氧化钠或氢氧化钾中的至少一种。
进一步的,地氯雷他定与巯基丙酰氯的摩尔比为1:1~1.5。
尽管本发明的化合物可以不经任何配制直接给药,但所述的各种化合物优选以药物制剂的形式使用,给药途径可以是非肠道途径(如静脉、肌肉给药)及口服给药。
本发明化合物的药物组合物制备如下:使用标准和常规的技术,使本发明化合物与制剂学上可接受的固体或液体载体结合,以及使之任意地与制剂学上可接受的辅助剂和赋形剂结合制备成微粒或微球。固体剂型包括片剂、分散颗粒、胶囊、缓释片、缓释微丸等等。固体载体可以是至少一种物质,其可以充当稀释剂、香味剂、增溶剂、润滑剂、悬浮剂、粘合剂、崩解剂以及包裹剂。惰性固体载体包括磷酸镁、硬脂酸镁、滑粉糖、乳糖、果胶、丙二醇、聚山梨酷80、糊精、淀粉、明胶、纤维素类物质例如甲基纤维素、微晶纤维素、低熔点石蜡、聚乙二醇、甘露醇、可可脂等。液体剂型包括溶剂、悬浮液例如注射剂、粉剂等等。
与现有技术相比,本发明的有益效果为:
采用本发明的技术方案,通过对氯雷他定的侧链基团进行修饰改造后,获得具有更强抑制活性的新型小分子化合物Lo-SH,经体外及动物体内实验证实,该小分子化合物Lo-SH能有效抑制金黄色葡萄球菌的毒力和生物被膜形成,且对哺乳动物细胞没有毒性。该小分子化合物Lo-SH可用于制备抑制金黄色葡萄球菌毒力和生物被膜形成的药物,或制备治疗由金黄色葡萄球菌引起的疾病的药物,或制成医疗器械或医疗器具消毒液。
附图说明
图1是本发明实施例2Lo-SH抑制金黄色葡萄球菌HG003株生物被膜形成的结晶紫染色图。
图2是本发明实施例2的Lo-SH抑制抑制金黄色葡萄球菌HG003株生物被膜形成的OD570检测结果图。***与对照比,P<0.001(Student’s t test)。
图3是本发明实施例2的HG003株浮游菌生长检测分析图。
图4是本发明实施例3的Lo-SH抑制16株金黄色葡萄球菌临床株生物被膜形成的检测结果图。与对照比,*P<0.05;***P<0.001(Student’s t test)。
图5是本发明实施例3的Lo-SH抑制5株金黄色葡萄球菌的色素减弱的结果图。
图6是本发明实施例3的Lo-SH抑制5株金黄色葡萄球菌的金黄色色素生成(OD450检测)的结果分析图;**与对照比,P<0.01(Student’s t test)。
图7是本发明实施例3的Lo-SH抑制5株金黄色葡萄球菌的溶血活性(OD550检测)的结果分析图;与对照比,*P<0.05;**P<0.01(Student’s t test)。
图8是本发明实施例4的Lo-SH治疗提高金黄色葡萄球菌HG003株肺部感染小鼠的生存率的结果分析图。Lo-SH(140mg/kg totally);*:P<0.05(Log-rank test)
具体实施方式
下面对本发明的较优的实施例作进一步的详细说明。
实施例1
采用以下步骤制备Lo-SH:
将地氯雷他定溶于有机溶剂中,以三乙胺作为缚酸剂,并添加溶有巯基丙酰氯的有机溶液,其中地氯雷他定与巯基丙酰氯的摩尔比为1:1~1.5,两者混合,于-5℃下搅拌反应,得到包含Lo-SH的反应液。其中有机溶剂可以为二氯甲烷、三氯甲烷、丙酮、乙腈、四氢呋喃、DMF、吡啶或甲苯中的一种。巯基丙酰氯采用常规方法合成得到。
反应结束后将反应液倒入冷水中,充分震荡分层,提取有机层,连续水洗三次。将有机层干燥,放置。然后过滤,减压蒸尽溶剂,得到化合物Lo-SH。所得产物用硅胶柱层析纯化,用于后续实验。
实施例2
化合物Lo-SH抑制金黄色葡萄球菌的生物被膜形成试验。
菌株生物被膜形成检测:金黄色葡萄球菌株在TSB培养基中37℃,220rpm/min摇菌过夜培养10-12h。用TSBG培养基(TSB培养基+0.5%葡萄糖)将菌液1:200稀释(含或不含Lo-SH),每孔200ul加入96孔板(Costar 3599),每株菌设3复孔,37℃静置培养24h。弃去上清,PBS洗脱3次(200ul/孔/次),室温下干燥后加入甲醇固定15min(200ul/孔),弃去甲醇室温下干燥后每孔加入0.5%结晶紫染液100ul,室温下染色10min,清水下轻柔洗脱结晶紫染液直至流水无色,室温下干燥后在酶标仪上读取OD570值。上述实验操作独立重复3次,数据表示为均数±标准差(mean±SD)。
菌株浮游菌生长检测:菌株在MHB培养基中37℃,220rpm/min摇菌过夜培养10-12h后,用新鲜的MHB培养基1:200稀释(含或不含Lo-SH),37℃,220rpm/min培养24h,每隔1h在酶标仪上读取OD600值。
如图1~图4所示,Lo-SH在25μM浓度下可显著抑制金黄色葡萄球菌标准株HG003和16株临床分离株形成生物被膜,但对浮游菌的生长无影响。
实施例2
化合物Lo-SH抑制金黄色葡萄球菌金黄色色素生成和溶血活性试验。
菌株金黄色色素检测:用TSB培养基在37℃下培养48h(含或不含Lo-SH),3ml细菌培养物离心并用0.01M磷酸盐缓冲盐水(PBS)洗涤两次。菌体沉淀PBS洗涤后,弃上清,向菌体沉淀加入300ul甲醇(100%),吹打重悬菌液,重悬之后震荡5分钟,离心(12000r/min,离心1-2分钟),然后把上清萃取液吸到干净EP管里,然后再向菌体沉淀加入300-350ul甲醇(100%),重复2次,每次均吸出萃取液,最后把这3次吸到一起去的萃取液约1ml充分混匀后,取200ul加到96孔板内(3复孔),在酶标仪上测OD450值。上述实验操作独立重复3次,数据表示为均数±标准差(mean±SD)。
菌株溶血活性检测:菌株1:200接种于4mL TSB培养基37℃,220rpm,培养12h(活化细菌),活化后细菌1:200接种至6ml TSB,37℃,220rpm培养12h(含或不含Lo-SH),4000rpm,4℃离心10min,取上清,经0.22μm过滤器去除上清培养液中的细菌,转移到无菌试管中备用。将菌株上清与1%的兔红细胞各500μl混合于1.5ml EP管中,TritonX-100做为阳性对照(100%溶血),1×PBS做为阴性对照,37℃孵育15min,离心15min,将100μl上清液移至新的96孔板中,并在550nm处读取吸光度。上述实验操作独立重复3次,数据表示为均数±标准差(mean±SD)。图5中,对照组的颜色为金黄色,而本实施例的为偏白色。
如图5~图7所示,Lo-SH(25μM)可显著抑制5株金黄色葡萄球菌的金黄色色素生成,并明显降低菌株的溶血活性。
实施例4
化合物Lo-SH治疗提高金黄色葡萄球菌肺部感染小鼠的生存率试验。
构建C57BL/6J小鼠金黄色葡萄球菌肺部感染模型,以评估Lo-SH对金黄色葡萄球菌毒力的抑制作用。方法如下:选择6-8周龄C57BL/6J小鼠(18-20g/只),每组15只。小鼠经11.8mg/L戊巴比妥钠100ul腹腔注射麻醉,麻醉后1小时,用金黄色葡萄球菌HG003株(2.0x109cfu)进行滴鼻,20ul菌液/只,随后实验组小鼠开始腹腔注射Lo-SH,1天2次,每次剂量10mg/kg,持续1周,累积总剂量达到140mg/kg。每天观察小鼠的存活情况。上述实验操作独立重复至少2次。
如图8所示,Lo-SH治疗1周,累积剂量140mg/kg,可明显提高金黄色葡萄球菌HG003株肺部感染小鼠的存活率。
实施例5
化合物Lo-SH对金黄色葡萄球菌生长的抑制实验
本实施例使用美国Clinical and Laboratory Standards Institute(CLSI)推荐的标准试管稀释法,步骤如下:
1.将细菌接种于新鲜的MH液体培养基,37℃培养过夜。
2.将菌液用新鲜的MH液体培养基将菌液浓度校正至0.5麦氏比浊标准,再用MH液体培养基按1:200稀释,向每只试管中加入1mL,加入1mL不同浓度梯度的Lo-SH(溶剂DMSO终浓度保持1%),37℃培养18小时。因Lo-SH溶解于DMSO中,以0.1%DMSO+细菌作为对照,以无菌培养基为空白对照。
3.取出与空白对照比较,细菌不生长的浓度最低的一管即为化合物的最小抑菌浓度。
结果显示,Lo-SH对金黄色葡萄球菌生长没有抑制作用。
实施例6
MTT法检测化合物Lo-SH的细胞毒性试验,包括以下步骤:
1.将新鲜培养的Vero细胞接种于96孔板,每孔100μL细胞(约5×104细胞),37℃,5%CO2条件下培养24小时,使细胞长成单层。
2.弃去培养基,加入100μL/每孔新鲜的MEM培养基,其中含有不同浓度的化合物Lo-SH(溶剂DMSO终浓度保持0.1%),每个样品采用6复孔上样,37℃,5%CO2条件下继续培养24小时。因Lo-SH溶解于DMSO中,因此设0.1%DMSO+细胞为对照。
3.每孔加入10μL MTT标记物,37℃、5%CO2条件下培养4小时。
4.每孔加入100μL溶解液,37℃、5%CO2条件下培养过夜。
5.将96孔板取出读取OD570值,每个样品读数取6复孔的均值,计算不同浓度的化合物对Vero细胞生长的抑制率:
半数抑制量CC50值采用Logit法计算。表1为化合物Lo-SH对Vero细胞的毒性作用。
表1 Lo-SH对Vero细胞的毒性作用结果
结果表明,未观察到对Vero细胞具有毒性。
实施例7
红细胞溶血实验,包括以下步骤:
1.将分离的健康人红细胞用无菌生理盐水洗3遍,并稀释至5%。
2.加入不同浓度的小分子化合物Lo-SH(溶剂DMSO终浓度保持1%)于5%红细胞悬液中,每孔200μl接种于96孔板上,每个样品采用三复孔。因Lo-SH溶解于DMSO中,因此设0.1%DMSO+细胞为阴性对照,设1%细胞穿透液Triton-100+细胞为阳性对照,并设两种常用抗生素头孢唑林和万古霉素作对照。37℃培养箱培养1小时,离心后取100μl上清移入另一块干净的96孔板,OD570读数,每个样品读数取三复孔的均值。
表2是化合物Lo-SH对血红细胞的毒性作用的结果。
表2 Lo-SH对血红细胞的毒性作用
结果表明:该小分子化合物Lo-SH对人红细胞均没有溶血作用。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。
Claims (7)
2.一种抑制金黄色葡萄球菌毒力和生物被膜形成的药物,其特征在于:其包括如权利要求1所述的抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH。
3.根据权利要求2所述的抑制金黄色葡萄球菌毒力和生物被膜形成的药物,其特征在于:所述药物为液体,药物中所述Lo-SH的浓度不小于25μM。
6.根据权利要求5所述的Lo-SH用于制备治疗由金黄色葡萄球菌引起的疾病的药物中的用途,其特征在于:所述药物为液体,药物中,所述Lo-SH的浓度不小于25μM。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949128.5A CN110818684B (zh) | 2019-10-08 | 2019-10-08 | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949128.5A CN110818684B (zh) | 2019-10-08 | 2019-10-08 | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110818684A CN110818684A (zh) | 2020-02-21 |
| CN110818684B true CN110818684B (zh) | 2023-04-07 |
Family
ID=69548709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910949128.5A Active CN110818684B (zh) | 2019-10-08 | 2019-10-08 | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110818684B (zh) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282233A (en) * | 1980-06-19 | 1981-08-04 | Schering Corporation | Antihistaminic 11-(4-piperidylidene)-5H-benzo-[5,6]-cyclohepta-[1,2-b]-pyridines |
| US4826853A (en) * | 1986-10-31 | 1989-05-02 | Schering Corporation | 6,11-Dihydro-11-(N-substituted-4-piperidylidene)-5H-benzo(5,6)cyclohepta(1,2-B)pyridines and compositions and methods of use |
| CN1187189A (zh) * | 1995-04-07 | 1998-07-08 | 先灵公司 | 用于抑制g-蛋白功能和治疗增生性疾病的三环化合物 |
| CN110123832A (zh) * | 2019-05-13 | 2019-08-16 | 东南大学 | 一种含无抗药性杀菌剂的眼用组合物 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12115208B2 (en) * | 2017-10-12 | 2024-10-15 | High Point University | Small-molecule adjuvants for antibiotics to address antibiotic resistance |
-
2019
- 2019-10-08 CN CN201910949128.5A patent/CN110818684B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4282233A (en) * | 1980-06-19 | 1981-08-04 | Schering Corporation | Antihistaminic 11-(4-piperidylidene)-5H-benzo-[5,6]-cyclohepta-[1,2-b]-pyridines |
| US4282233B1 (en) * | 1980-06-19 | 2000-09-05 | Schering Corp | Antihistaminic 11-(4-piperidylidene)-5h-benzoÄ5,6Ü-cyclohepta-Ä1,2Ü-pyridines |
| US4826853A (en) * | 1986-10-31 | 1989-05-02 | Schering Corporation | 6,11-Dihydro-11-(N-substituted-4-piperidylidene)-5H-benzo(5,6)cyclohepta(1,2-B)pyridines and compositions and methods of use |
| CN1187189A (zh) * | 1995-04-07 | 1998-07-08 | 先灵公司 | 用于抑制g-蛋白功能和治疗增生性疾病的三环化合物 |
| CN110123832A (zh) * | 2019-05-13 | 2019-08-16 | 东南大学 | 一种含无抗药性杀菌剂的眼用组合物 |
Non-Patent Citations (4)
| Title |
|---|
| 14种化学药品微生物限度检查方法验证结果及分析;李惠娥 等;《西北药学杂志》;20071231;第22卷(第6期);第325-327页 * |
| From Antihistamine to Anti-infective: Loratadine Inhibition of Regulatory PASTA Kinases in Staphylococci Reduces Bio film Formation and Potentiates β-Lactam Antibiotics and Vancomycin in Resistant Strains of Staphylococcus aureus;Nicholas Cutrona 等;《ACS Infect. Dis.》;20190527;第5卷;第1397-1410页 * |
| Loratadine and Analogues: Discovery and Preliminary Structure-Activity Relationship of Inhibitors of the Amino Acid Transporter B0AT2;Serena Cuboni 等;《J. Med. Chem.》;20141015;第57卷;第9473-9479页 * |
| Loratadine inhibits Staphylococcus aureus virulence and biofilm formation;Jinxin Zheng 等;《iScience》;20220218;第1-21页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110818684A (zh) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8916527B2 (en) | Antibiotic macrocycle compounds and methods of manufacture and use thereof | |
| TW201513872A (zh) | 胺官能性聚醯胺 | |
| CN107235894B (zh) | 具有抗耐药菌活性的季铵查尔酮衍生物、其制备方法及应用 | |
| CN117586352A (zh) | 一种基于宽体金线蛭唾液腺的抗菌多肽aph220及其应用 | |
| CN103965273A (zh) | 一种大环内酯类化合物 | |
| CN110818684B (zh) | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-SH及其用途 | |
| CN102010420B (zh) | [(10s)-9,10-二氢青蒿素-10-氧基]苯甲醛缩氨基(硫)脲系列物及其制备方法和用途 | |
| CN110698457B (zh) | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-叔丁酯及其用途 | |
| CN110845473B (zh) | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-乙酸乙酯及其用途 | |
| JP7371838B2 (ja) | 環縮合チアゾリノ2-ピリドン、それらの調製方法、ならびにグラム陽性菌が関与する疾患の治療および/または予防におけるそれらの使用 | |
| CN103880930B (zh) | 万古霉素类衍生物及其制备方法和药用用途 | |
| CN106749213B (zh) | 一种具有1,2,4-恶二唑结构的吲哚衍生物及制备方法和在制备抗菌药物中的应用 | |
| CN116063227B (zh) | 截短侧耳素衍生物及其合成方法和应用 | |
| Ullah et al. | Bioavailability of antibiotics and their toxicity | |
| CN119405637A (zh) | 紫萁酮在制备治疗耐甲氧西林金黄色葡萄球菌感染性肺炎药物中的应用 | |
| CN110818685A (zh) | 一种抗金黄色葡萄球菌毒力和生物被膜形成的抑制剂Lo-异己基及其用途 | |
| CN113200967B (zh) | 吲哚苯醌类化合物、其制备方法及其应用 | |
| WO2024141126A1 (zh) | 一种新型具有抗菌和抗癌功能的苯基喹诺酮类化合物及其制备 | |
| CN115925585A (zh) | 氯福克酚衍生物、抗菌药物及制备方法与应用 | |
| CN107089978A (zh) | 噻唑烷酮衍生物及其制备方法和用途 | |
| CN113354561A (zh) | 双胍衍生物及其应用与制剂 | |
| CN104119295B (zh) | 吩噻嗪类一氧化氮供体、其制备方法和用途 | |
| CN120309697B (zh) | 一种用于抗革兰氏阴性菌的多肽药物及应用 | |
| RU2815029C1 (ru) | N-(гуанидиноалкил)амиды эремомицина и их применение для лечения бактериальных инфекций | |
| WO2021189444A1 (zh) | 利福霉素类抗生素在制备抗黄热病毒感染药物中的应用 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |