EP4221678A1 - Nouvelle utilisation d'un peptide pour améliorer le confort de la peau et/ou des muqueuses et/ou l'apparence des phanères - Google Patents
Nouvelle utilisation d'un peptide pour améliorer le confort de la peau et/ou des muqueuses et/ou l'apparence des phanèresInfo
- Publication number
- EP4221678A1 EP4221678A1 EP21799310.4A EP21799310A EP4221678A1 EP 4221678 A1 EP4221678 A1 EP 4221678A1 EP 21799310 A EP21799310 A EP 21799310A EP 4221678 A1 EP4221678 A1 EP 4221678A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- peptide
- healthy
- skin
- seq
- scalp
- 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.)
- Pending
Links
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- 229940083608 sodium hydroxide Drugs 0.000 description 1
- NTYZDAJPNNBYED-UHFFFAOYSA-M sodium;2-(2-dodecanoyloxypropanoyloxy)propanoate Chemical compound [Na+].CCCCCCCCCCCC(=O)OC(C)C(=O)OC(C)C([O-])=O NTYZDAJPNNBYED-UHFFFAOYSA-M 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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- 238000012762 unpaired Student’s t-test Methods 0.000 description 1
- MSRILKIQRXUYCT-UHFFFAOYSA-M valproate semisodium Chemical compound [Na+].CCCC(C(O)=O)CCC.CCCC(C([O-])=O)CCC MSRILKIQRXUYCT-UHFFFAOYSA-M 0.000 description 1
- 229960000604 valproic acid Drugs 0.000 description 1
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- 235000019156 vitamin B Nutrition 0.000 description 1
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- YEFOAORQXAOVJQ-UHFFFAOYSA-N wuweizischun A Natural products C1C(C)C(C)(O)CC2=CC(OC)=C(OC)C(OC)=C2C2=C1C=C(OC)C(OC)=C2OC YEFOAORQXAOVJQ-UHFFFAOYSA-N 0.000 description 1
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- 239000011701 zinc Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
- A61K8/645—Proteins of vegetable origin; Derivatives or degradation products thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9794—Liliopsida [monocotyledons]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/005—Preparations for sensitive skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/08—Anti-ageing preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/002—Preparations for repairing the hair, e.g. hair cure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/006—Antidandruff preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/74—Biological properties of particular ingredients
- A61K2800/75—Anti-irritant
Definitions
- the subject of the present invention is the use of a peptide of sequence SEQ ID No. 1 and/or its homologs, optionally either in the form or in combination with the peptide SEQ ID No. 2, in particular in the form of rice hydrolyzate enriched with this (these) peptide(s), and optionally in combination with the peptides SEQ ID No. 3 and/or SEQ ID No. 4 to improve the comfort of the skin, in particular of the scalp, and/or of the mucous membranes, and/or the appearance of the superficial body growths, in particular of the keratinous fibres.
- a subject of the present invention is also the applications of this peptide in cosmetic and/or dermatological compositions.
- Skin sensitivity is a condition that is too often neglected.
- skin sensitivity is not limited to the face and it is estimated that between a third and half of the population has a so-called sensitive scalp.
- the triggering factors which have a significant impact on the manifestations of sensitive skin, and in particular the sensitive scalp, are temperature variations, in particular heat and cold, humidity, dry air, sun, pollution and aggressive and/or repeated shampoos as well as aggressive hair treatments (colouring, straightening, etc.).
- the stratum corneum otherwise known as the stratum corneum (SC) typically has a pH ranging from 4 to 6.
- This acid character which has earned it the name “acid mantle”, is recognized as an essential condition for healthy skin.
- This pH gradient within the skin helps to orchestrate epidermal differentiation and corneocyte excretion through the involvement of several pH-dependent enzymes.
- the enzymes involved in the synthesis of ceramides, critical components of the stratum corneum barrier, ⁇ -glucocrebrosidase and sphingomyelinase have an optimal acid pH.
- Elevations in pH in normal skin thus affect the integrity, cohesion and desquamation of the stratum corneum, due to increased activity of serine proteases, kallikrein 5 and 7, and reduced activity of enzymes of synthesis of ceramides. Maintaining or restoring an acid skin pH is therefore essential to preserve and/or restore healthy skin and avoid the signs of discomfort that often result, such as itching, tightness and sensitivity.
- a sensitive scalp is manifested by a higher pH than a non-sensitive scalp, and a greater tendency to become irritated. This rise in pH could contribute more quickly to uncomfortable and/or unpleasant scalp manifestations, including itching and contribute to the appearance of dandruff, in part by affecting sensitivity to Malassezia metabolites.
- the present invention aims to provide a new cosmetic and / or dermatological active ingredient to improve the comfort of the skin, in particular of the scalp as well as the mucous membranes and / or to improve the appearance of the appendages in particular the keratin fibers, as an alternative to cosmetic ingredients and existing dermatological conditions.
- the present invention also aims to provide a new cosmetic and/or dermatological active ingredient for the specific care and/or treatment needs of sensitive scalps.
- the inventors have discovered that the peptide of SEQ ID No. 1 is capable of improving the comfort of the skin, including the scalp, and/or of the mucous membranes, and/or of improving the appearance of the skin appendages, in particular the keratin fibres, preferentially the hair.
- the peptide of SEQ ID No. 1 has already been described in the field of cosmetics among a large number of peptides derived from rice and peas in patent application W02017009484A1 (as SEQ ID No. 423) as anti-inflammatory agent capable of inhibiting TNFalpha secretion by macrophages in the presence of lipopolysaccharides, as well as in patent application WQ2017009490A1 (as SEQ ID No. 248) as an agent capable of increasing fibroblast prediferation human skin and thus treat the visible signs of aging.
- This peptide is naturally present in a rice grain protein Oryza sativa, from which it can be obtained. However, it is not naturally present in sufficient quantity to be detected there and produce the properties that are the subject of the invention. In the context of the present invention, it was obtained by enzymatic hydrolysis.
- Enzymatic hydrolysis by its specificity offers the advantage of being able to be carried out under controlled conditions in particular pH, temperature and pressure.
- the enzymes are chosen so as to obtain the peptides of interest and lead to the production of specific hydrolysates, which are very different with regard to the peptide fragments which they contain, whether in terms of the nature of the fragments, of molecular weight and of distribution.
- patent application WO03039496A1 describes a capryloyl-glutamate salt and/or capryloyl salts of rice protein hydrolyzate as a self-preserving and moisturizing agent, as well as sebum-regulating, anti-dandruff and anti-odor agents.
- Patent KR20040108226B describes a black rice protein hydrolyzate, obtained by hydrolysis with papain to hydrate, increase collagen synthesis and inhibit melanogenesis.
- the invention thus relates to the use of the peptide of SEQ ID No. 1 and / or its homologs for its cosmetic properties chosen from improving the comfort of healthy skin, in particular healthy scalp, and / or healthy mucous membranes , and/or improve the appearance of healthy skin appendages, preferably the hair.
- This peptide has many additional advantages in that it does not attack or remove the sebum present on the skin, in particular the scalp, which makes it particularly suitable for the care and/or treatment of skin, in particular sensitive scalps, especially in the form of a mild shampoo.
- the peptide according to the invention has the advantage of inhibiting the release of TNF alpha by macrophages. It also makes it possible to inhibit elastases as described in Example 10.1.
- the peptide according to the invention through its complementary properties, provides a perfectly adapted and complete solution to the specific needs of sensitive hair and scalps.
- the peptide according to the invention is particularly suitable for producing a complete composition for the care and/or cosmetic treatment of the body.
- the peptide of SEQ ID No. 1 is in the form of the peptide of SEQ ID No. 2 and/or its homologs.
- the peptide according to the invention is in the form of a hydrolyzate of Oryza sativa rice proteins, advantageously at a content of at least equal to or greater than 0.00001% by weight of dry matter relative to the weight total of the hydrolyzate, preferably between 0.0001% and 0.03%, more preferably between 0.001% and 0.01%.
- the peptide according to the invention is used in combination with at least one peptide chosen from the peptides of SEQ ID No. 2, and/or SEQ ID No. 3 and/or SEQ ID No. 4, advantageously with the peptides of SEQ ID No. 2, SEQ ID No. 3 and SEQ ID No. 4, preferably in the form of the hydrolyzate enriched in peptide according to the invention.
- the peptide according to the invention is the peptide of SEQ ID No. 1:
- SEQ ID No. 1 GYYGEQQQQPGMTR This peptide contains all 14 amino acids: Gly-Tyr-Tyr-Gly-Glu-GIn-GIn-Gln-Gln-Pro-Gly-Met-Thr-Arg and has an average molecular weight of 1642.72 daltons.
- rice grain proteins (Oryza sativ) and can be obtained by enzymatic hydrolysis of rice grains as described in patent applications W02017009484A1 and W02017009490A1, or by chemical synthesis according to conventional methods in the field. It can also be purified or obtained as indicated in Example 1.
- the peptide according to the invention is the peptide of SEQ ID No. 2 which contains the peptide SEQ ID No. 1, preceded by the 3 additional amino acids Ser-Glu-Glu.
- SEQ ID No. 2 SEEGYYGEQQQQPGMTR
- the peptide SEQ ID No. 2 thus contains 17 amino acids and has an average molecular weight of 1988.01 daltons. It is also naturally present in rice grain proteins (Oryza sativa) and can be obtained by enzymatic hydrolysis of rice grains as described in patent applications WQ2017009484A1 and WQ2017009490A1, or by chemical synthesis according to conventional methods in the field. . It can also be purified or obtained as indicated in example 1
- the peptide according to the invention is in the form SEQ ID No. 1 and/or SEQ ID No. 2, preferably in the form of a mixture of peptides SEQ ID No. 1 and SEQ ID No. 2 , in particular contained in an enriched hydrolyzate according to the invention.
- the peptides of SEQ ID No. 1 and/or SEQ ID No. 2 can be combined with the peptides of SEQ ID No. 3 and/or SEQ ID No. 4, optionally in the form of a hydrolysis such as those described in Example 2.
- the peptide of SEQ ID No. 1 is used in combination with the peptide of SEQ ID No. 2 and/or in combination with the peptide of SEQ ID No. 3 and/or in combination with the peptide of SEQ ID No. 4.
- This SEQ ID No. 3 peptide has 16 amino acids and has a molecular pad of 1971.97 daltons. It can be isolated from a rice protein hydrolyzate (Oryza sativa) according to the method described in Example 3 or be obtained as described in patent application WQ2017009484 for obtaining the sequence SEQ ID No. 218 or by chemical synthesis. It can also be purified or obtained as indicated in Example 1.
- This 12 amino acid peptide has a molecular weight of 1294.37 daltons; It can be isolated from a rice protein hydrolyzate (Oryza sativa) according to the method described in Example 3 or be obtained as described in patent application WQ2017009484 for obtaining the sequence SEQ ID No. 194 or by chemical synthesis. It can also be purified or obtained as indicated in Example 1.
- the term “peptide” is understood to mean any isolated, natural or synthetic amino acid sequence, where appropriate capable of being obtained by chemical or biotechnological synthesis or by extraction from a biological tissue, for example a plant, an animal or a microorganism, in particular yeast, expressing naturally or after transduction the sequence of amino acids, optionally after post-translational modification of the latter.
- the peptide can be modified by adding a functional group, for example coupled with a hydrophilic or hydrophobic penetrating agent, stability agent or with a protective group according to the conventional methods known to those skilled in the art, in particular by acylation of the group -NH 2 terminal, or amidation or alkylation of the terminal -COOH group.
- the term "homolog" of an amino acid sequence means an amino acid sequence having a sequence identity of at least 85%, more preferably 90%, in particular of at least 95 %, and more particularly of at least 98%, more preferably at least 99% with said sequence and possessing a biological activity of the same nature.
- sequence homology can be identified by any standard technique in the field, for example via the BLAST computer interface available on the NCBI website at the address http://blast.ncbi.nlm.nih.gov configured with the default settings.
- a homolog of an amino acid sequence may differ from this sequence, for example, by one or more deletion(s) and/or insertion(s), and/or one or more substitution(s) of an amino acid .
- a homolog of an amino acid sequence can comprise one or more conservative amino acid substitutions.
- a conservative substitution is the replacement, in a sequence, of an amino acid by another amino acid endowed with physicochemical properties substantially similar, or sufficiently close to those of the original amino acid, so that the properties and functions of the peptide are not, or substantially not, affected.
- the amino acid sequence modifications shown above may be referred to generally as a "mutation".
- homologs of the peptides according to the invention also relate to the mutants and the variants of the amino acid sequences of the invention having a biological activity of the same nature.
- biological activity of the same nature of an amino acid sequence of the invention, is meant in particular its ability to exhibit the properties according to the invention.
- the term “improving the comfort of the skin and/or mucous membranes” means reducing the unpleasant and/or uncomfortable manifestations of healthy skin and/or healthy mucous membranes, in particular those due to a drop in skin homeostasis and /or mucosal and/or due to modifications of the stratum corneum, in particular due to a decrease in the involucrin content and/or the filaggrin content and/or an increase in skin pH, chosen from skin dryness and/or mucosal, in particular on the scalp, itching, redness, skin tightness, desquamation, in particular scales of the scalp, dandruff, cracking as well as skin sensitivity, in particular of the scalp, and /or provide a feeling of cutaneous and/or mucosal comfort and/or make the skin and/or the mucosa softer and/or reduce its roughness.
- the improvement in skin comfort can be measured by conventional methods known to those skilled in the art. Mention may be made, by way of example, of the following techniques: measurement of the increase in the synthesis of involucrin by the epidermal keratinocytes as presented in example 5, measurement of the increase in the synthesis of filagrin in a reconstructed epidermis as presented in Example 6, measurement of redness, in particular of the scalp according to the method presented in Example 7, measurement of the quantity of scales, in particular of the scalp according to the method presented in Example 7, measurement of the skin hydration, in particular by a corneometer, such as that described in example 8, measurement of the skin pH, in particular via a pH meter.
- the peptide according to the invention has the advantage of providing a lasting, persistent effect on hydration even after its use has been stopped, as demonstrated in Example 8.
- the improvement in scalp comfort can be measured, for example, by:
- decline in skin and/or mucosal homeostasis means an imbalance of the skin and/or mucosal barrier by a reduction in water homeostasis and/or by variation in pH, in particular an increase in pH.
- the loss of cutaneous homeostasis of healthy skin and/or healthy mucous membrane thus does not result according to the invention from an alteration of the epithelial cells as may be the case for example during an injury, which belongs to dermatology.
- the peptide according to the invention is thus particularly suitable for the care and/or treatment of dry mucous membranes, dry skin, in particular dry scalp, sensitive skin, irritated skin and/or mucous membranes, and/or presenting a drop in cutaneous and/or mucosal homeostasis, in particular water and/or elevation of pH.
- the use according to the invention is intended for the care of dry and/or sensitive skin, and/or dry and/or sensitive scalp.
- the unpleasant and uncomfortable manifestations of healthy skin and/or healthy mucous membranes are not related to age or to an alteration of epithelial cells.
- the term “improving the comfort of the scalp” means reducing the unpleasant and uncomfortable manifestations of the healthy scalp, in particular those due to a drop in cutaneous homeostasis and/or due to modifications of the stratum corneum, in particular due to a decrease in the involucrin content and/or a decrease in the filaggrin content and/or an increase in skin pH, chosen from dryness of the scalp, itching of the scalp, redness of the scalp, tightness of the scalp, flaking of the scalp, dandruff, cracking as well as sensitivity of the scalp, and/or providing a feeling of skin comfort and/or making the scalp softer and/or or decrease its roughness.
- the improvement in the comfort of the scalp can in particular be measured using conventional methods.
- it can be measured according to the methods presented in Example 7, by measuring the redness of the scalp and/or by measuring the pH of the scalp and or by evaluating the scales of the scalp.
- the peptide according to the invention, in particular the hydrolyzate according to the invention which contains it, has the advantage of not significantly reducing the quantity of sebum present on the scalp.
- the improvement in the appearance of skin appendages, especially hair can be measured using conventional techniques.
- mention may be made of measuring the improvement in the strength and resistance of the appendages by measuring the improvement in the structure of the keratin fibres, as described in example 12.1.
- the growth of keratin fibers can be measured according to the method described in Example 12.2.
- the term "cosmetic" means a non-pharmaceutical, non-therapeutic use, which is not intended for the prevention and/or treatment of skin and/or mucous membranes and/or appendages qualified as pathological by a specialist. in the field, such as a dermatologist. It is therefore a question of use on healthy skin and/or mucous membranes and/or appendages.
- healthy skin in particular healthy scalp and/or healthy mucous membrane and/or healthy skin appendage
- the term “skin” means the skin of all or part of the body, in particular human, including the scalp, chosen from the scalp, the face, the hands, the arms, the neckline, the legs, neck, back, shoulders, stomach, wrists, forearms, ankles, thighs, neck, joint folds and armpits.
- the skin is that which may present uncomfortable and/or unpleasant manifestations, in particular the areas of exposure, friction and/or maceration. This is more particularly the face, scalp, hands, neck, Vietnameselleté, scalp, joint folds and armpits.
- mucosa(s) means the ocular, nasal, vaginal, anal mucosa and/or the oral mucosa, in particular the labial buccal mucosa, preferentially, the labial, ocular and/or nasal mucous membranes .
- keratin fibers means the hair fiber (the hair), the eyelashes, the eyebrows, the hairs in particular of the nasal mucosa, the ears, the beard and/or the mustache, in particular the hair fiber (the hair).
- the application is topically, advantageously on specific parts and/or uncomfortable areas of the body, in particular chosen from the scalp, face, hands, arms, Vietnameselleté, legs, neck , back, shoulders, stomach, wrists, forearms, ankles, thighs, neck, joint and armpit folds, labial mucous membranes, body hair, eyelashes, eyebrows and/or hair, preferably the scalp and/or the hair.
- topically acceptable means an ingredient suitable for topical application, non-toxic, non-irritating to the skin and/or mucous membranes and/or appendages, which does not induce allergic response and which is not chemically unstable.
- the peptide alone or in combination is used in the form of a hydrolyzate of rice proteins (Oryza sativa), in particular enriched in peptide according to the invention.
- hydrolyzate enriched in peptide according to the invention means a hydrolyzate in which the peptide of SEQ ID No. 1, and/or of SEQ ID No. 2 according to the invention is detected at a color ranging beyond the threshold of the detection limit with sensitive techniques in the matter, for example LC-MS/MS, that is to say in general a content at least equal to or greater than 0.00001% by weight per relative to the total dry matter weight of the hydrolyzate.
- the peptide SEQ ID No. 1, optionally in the form of SEQ ID No. 2 or combined with a peptide of SEQ ID No. 2 is contained in a hydrolyzate of rice prdeine, preferably at a quantity of at least equal to or greater than 0.00001% by weight of dry matter relative to the total weight of the hydrolyzate, preferably between 0.0001% and 0.03%, more preferably between 0.001% and 0, 01%.
- the peptide hydrolyzate (or protein hydrolyzate) of rice is obtained by enzymatic hydrolysis in a single step.
- the hydrolyzate can be obtained by successive hydrolysis using the same enzyme or a mixture of enzymes.
- Enzymatic hydrolysis is carried out by one or more proteolytic enzymes, which may be proteases of plant origin or from microorganisms.
- the enzymatic hydrolysis takes place until its completion, which can be determined by the person skilled in the art in a known way, for example by determining the constant pH or by photometry using the detection of free NH 2 groups or by determining the constant amount of SEQ ID No. 1 and SEQ ID No. 2 peptides by liquid chromatography and mass spectroscopy.
- the amount of enzyme(s) used is not critical per se, but should be in the range of 0.05 to 5, preferably 0.1 to 2% by weight based on the weight of the starting material containing the peptide.
- the hydrolysates obtained can finally be treated, for example by filtration of the undissolved fractions.
- the pH is preferably set at values between 3.0 and 7.5, preferably between 3.5 and 5.5.
- the hydrolysates obtained are in liquid form, in particular aqueous solutions, and can be used directly or in concentrated form; they preferably have a dry matter content in the range of 1 to 50% by weight, preferably 5 to 30% by weight.
- Adjuvants can be added such as polyols, glycols, acids (citric acid, sorbic acid, sulfuric acid, benzoic acid or their salts, etc.).
- hydrolysates obtained at this stage can be further concentrated and/or purified to select the targeted molecular weight fractions, by successive steps of ultrafiltration or nanofiltration through filters with variable porosity, or by means of a method of the chromatographic type, for example to specifically enrich the hydrolyzate in these peptides.
- Hydrolysates enriched according to the invention are presented in Example 2.
- peptide hydrolysates according to the invention in powder form by drying (atomizer, freeze-dried, etc.) with or without a support such as mannitol, maltodextrin, cyclodextrin, according to conventional techniques of formulation known to those skilled in the art.
- the preferred hydrolyzate according to the invention contains the peptide of SEQ ID No. 1 and/or the peptide of SEQ ID No. 2, preferably both peptides, in a total content at least equal to or greater than 0.00001% by weight relative to the total dry matter weight of the hydrolyzate, preferably between 0.0001% and 0.03%, more preferably between 0.001% and 0.01%.
- this hydrolyzate also has at least one, and preferably at least two, and even more preferably all of the following characteristics:
- - Contains at least 70%, more preferably 80%, of peptides having a molecular weight of less than 2500 daltons.
- the preferential protein hydrolyzate according to the invention is characterized by the presence of all these characteristics.
- the average molecular weight expressed in daltons (or g/mol) is determined by steric exclusion chromatography known to those skilled in the art.
- the molecular weight distribution is measured according to the invention as described in example 3.
- the rice peptide hydrolyzate according to the invention can be obtained by carrying out the following steps:
- hydrolysis preferably the hydrolysis is carried out enzymatically by means of proteolytic enzymes, preferably of plant origin or derived from microorganisms, by selecting the enzyme and adjusting the temperature and pH conditions to obtain the right degree of hydrolysis and the molecular weight profile;
- this inactivation is carried out according to the technical recommendation of the supplier(s) of the enzyme(s);
- the rice protein hydrolyzate enriched in peptide according to the invention which is in liquid form and which also constitutes an embodiment of the invention.
- the hydrolyzate also contains the peptides SEQ ID No. 1, SEQ ID No. 2, SEQ ID No. 3 and SEQ ID No. 4, each in an individual content at least equal to or greater than 0.00001% by weight relative to the total dry matter weight of the hydrolyzate, the total sum of these 4 peptides being at least equal to 0.00004% by weight relative to the total dry matter weight of the hydrolyzate, preferably greater than 0 .0001%.
- Examples of such a hydrolyzate enriched in peptide according to the invention are presented in examples 2a) 2b) and 2c) and constitute the preferred embodiments of the present invention.
- the peptide according to the invention preferably in the form of a hydrolyzate enriched in peptide, is used topically.
- topical route means the application of the peptide according to the invention, preferably in the form of a hydrolyzate enriched in peptide and/or of the composition and/or of the ingredient according to the invention on the surface of the skin, in particular leather scalp and/or mucous membranes, and/or skin appendages, preferably hair, in particular by direct application or by vaporization.
- cosmetic and/or pharmaceutical ingredient(s) means one or more plant extracts and/or one or more natural or synthetic molecules and/or mixtures thereof intended for cosmetic and/or pharmaceutical application.
- Cosmetic ingredients are notably defined by the International Nomenclature of Cosmetic Ingredients (INCI).
- suitable cosmetic or pharmaceutical vehicle means that the composition or the components thereof are suitable for use in contact with human skin and/or mucous membranes without toxicity, incompatibility, instability, allergic response, or their equivalents, undue.
- the cosmetic or pharmaceutical, in particular dermatological, ingredient in liquid form containing the peptide according to the invention, in particular in the form of a hydrolyzate enriched in peptide according to the invention and in particular that of Example 9, can be used in a cosmetic or pharmaceutical composition, in particular dermatological, preferably with a content by weight of dry matter relative to the total weight of the composition of between 0.01 and 10%, advantageously between 0.1 and 5%, in particular between 0.2 and 3%.
- the peptide preferably in the form of the peptide-enriched hydrolyzate, will be included in the cosmetic or pharmaceutical composition in a content of between 1x10′ 5 % to 20% by weight, preferably 1x10 4 % to 10% by weight, again advantageously from 1 ⁇ 10 % to 3% by weight, more preferably from 0.001% and 0.1% by weight of dry matter relative to the total weight of the composition.
- compositions according to the invention may contain any suitable solvent and/or any suitable vehicle and/or any suitable excipient, optionally in combination with other compounds of interest. They may in particular contain a cosmetically or dermatologically acceptable excipient and/or an appropriate cosmetic or pharmaceutical vehicle chosen from surfactants, preservatives, buffering agents, swelling agents, chelating agents, biocidal agents, denaturants, opacifying agents, pH adjusters, reducing agents, stabilizing agents, emulsifiers, thickeners, gelling agents, film-forming polymers, solvents, fillers, bactericides, odor absorbers, matting agents, conditioning agents, texture agents, shine agents, pigments, dyes, perfumes and chemical or mineral sun filters, trace elements, essential oils, sweeteners, taste modifying agents. These combinations are also covered by the present invention.
- CTFA Cosmetic Ingredient Handbook, Second Edition (1992) describes various cosmetic and pharmaceutical ingredients commonly used in the cosmetics and pharmaceutical industry, which are in particular suitable for oral administration and/or for topical use.
- the excipient(s) and/or the vehicle(s) are chosen from the group comprising polyglycerols, esters, polymers and cellulose derivatives, lanolin derivatives, phospholipids, lactoferrins, lactoperoxidases, stabilizers based on sucrose, vitamin E and its derivatives, xanthan gums, natural and synthetic waxes, vegetable oils, triglycerides, unsaponifiables, phytosterols, silicones, protein hydrolysates, betaines, aminoxides, extracts plants, sucrose esters, titanium dioxides, glycines, and parabens, and more preferably from the group consisting of steareth-2, steareth-21, glycol-15 stearyl ether, cetearyl alcohol, phenoxyethanol, methylparaben, ethylparaben, propylparaben, butylparaben, butylene glycol, caprylyl glycol, tocopherols natural,
- the cosmetic or pharmaceutical composition or the peptide, preferably the peptide-enriched hydrolyzate according to the invention, optionally in the form of a cosmetic or pharmaceutical ingredient, can be in all the dosage forms conventionally used for topical application, such as liquid or solids or even in the form of liquid under pressure.
- aqueous or oily solution a cream or an aqueous gel or an oily gel, in particular in a jar or in a tube, in particular a shower gel, a shampoo, a milk, an emulsion, a hydrogel, a microemulsion or a nanoemulsion, in particular oil-in-water or water-in-oil or multiple or silicone-based, a serum, a lotion, in particular in a glass or plastic bottle or in a dispenser bottle or in an aerosol, an ampoule, a liquid soap, a paste, a dermatological bar, an ointment, a mousse, an aerosol, a mask, a patch, an anhydrous product, preferably liquid, pasty or solid, for example in the form of a stick, in particular in a stick or in powders , especially makeup.
- the composition is in the form of a serum, a lotion, a cream, a milk, an ointment, a paste, a mousse, an emulsion, a a hydrogel, a shower gel, a mask, a stick, a patch, or makeup powders, advantageously a cream or a lotion.
- the composition is in the form of a cream, lotion for the skin and/or the hair or of a shampoo, conditioner, which may or may not be rinsed off (leave-on type).
- the peptide according to the present invention preferably the peptide-enriched hydrolyzate according to the invention, has the advantage of not attacking and/or stripping the scalp, allowing the sebum level to be maintained and is particularly suitable for the care and/or or the treatment of sensitive and/or prone to irritation scalp.
- the cosmetic or pharmaceutical composition or the peptide according to the invention may be in the form of an eye drop, a lotion, an aerosol, a gel, or a mucoadhesive composition.
- the cosmetic or pharmaceutical composition may also comprise other cosmetic or pharmaceutical ingredients, active in the treatment of the skin and / or mucous membranes and / or appendages inducing a complementary or synergistic effect with the peptide according to the invention, chosen for example from active ingredients for sensitive skin and/or mucous membranes, active ingredients on the scalp, anti-dandruff and/or so-called anti-hair loss active ingredients.
- anti-hair loss ingredients mention will be made of the combination of sulphopeptides, amino acids, aminosaccharides, group B vitamins, zinc and/or extract of Panax ginseng and Artium majus marketed under the name TrichogenTM LS 8960 by the Applicant and / or a capillary protective agent such as an extract of Litchi chinensis pericarp marketed under the name LitezermTM by the Applicant, and/or a soothing and anti-itch active ingredient such as rapeseed phytosterols marketed under the name PhytosootheTM LS9766 by the Applicant and/or an active ingredient to strengthen the hair follicle such as an extract of Nephelium lappaceum and/or minodoxil, valproic acid as marketed by Amorepacific and/or stemoxidine and/or aminoxil and/or Hairgenyl as marketed by Silab and/or Rednensyl (as marketed by Givaudan-l
- These combinations of active agents are capable of strengthening the hair follicle and thus contributing to reducing the loss of keratinous fibers, preferably hair.
- active cosmetic ingredients promoting the firmness of the skin such as a synthetic tetrapeptide marketed under the name DermicanTM, an extract of Hibiscus abelmoschus marketed under the name of LinefactorTM, a purified pea extract marketed under the name ProteasylTM, an
- the peptide according to the present invention in combination with active ingredients on the cutaneous and/or mucosal microbial flora and/or active on the barrier function of the skin, in particular moisturizing and/or soothing active ingredients, among which an oligosaccharide obtained by enzymatic synthesis marketed by Solabia under the name BioEcoliaTM or a complex of alpha-glucooligosaccharides marketed by the same company under the name EcoskinTM, an extract of Alisma plantago-aquatica, an extract of Argania spinosa (Lipofructyl TM Argan), a mixture of ceramides (SphingocerylTM VEG), purifying extracts of Boldo (BetapurTM), products based on inulin or fructooligosaccharides, extracts of bifidobacteria or even an extract of Orthosiphon stamineus to fight against oily skin (MAT-XSTM Bright), a natural honey extract
- the present invention also relates to a cosmetic care and/or treatment process comprising the topical application, in particular daily, to at least one area of healthy skin, advantageously the healthy scalp, and/or healthy mucous membrane and/or or healthy skin appendage, of the peptide according to the invention, preferably in the form of a hydrolyzate enriched with peptide according to the invention or of a cosmetic composition according to the invention for improving the comfort of healthy skin, in particular the scalp healthy, and/or healthy mucous membranes, and/or the appearance of skin appendages, in particular keratin fibres.
- the invention also relates to a cosmetic treatment method for improving the comfort of healthy skin, in particular healthy scalp, and/or healthy mucous membranes, and/or the appearance of healthy appendages, in particular fibers healthy keratins of an individual who needs/wants it including the steps
- a subject of the present invention is also the peptide of SEQ ID 1 and/or its homologs according to the present invention, preferably in the form of a hydrolyzate enriched in peptide according to the invention, for its use alone or in a pharmaceutical composition.
- dermatological in the treatment and/or prevention of at least one pathology associated with a drop in skin homeostasis and/or a decrease in the involucrin content and/or the filagrin content and/or an increase of cutaneous pH and/or any one of their combinations, in particular ichthyosis and alopecia as well as desquamations associated with certain pathologies such as acute irradiation, sunburn, burns.
- the pharmaceutical, in particular dermatological, composition preferably contains the peptide according to the invention has a peptide content of between 1x10' 5 % to 20% by weight, preferably from 1x10' 4 % to 10% by weight, still advantageously from 1x10' 3 % to 3% by weight, more preferably from 0.001% and 0.1% by weight, relative to the total weight of the composition.
- the temperature is expressed in degrees Celsius and the pressure is atmospheric pressure.
- FIG. 1A represents a photograph of a surface of the scalp before application of a composition according to the invention and FIG. 1B shows a photograph of a surface of the human scalp after one week of application of a composition according to the invention under the conditions of Example 1.
- FIG. 2A represents a photograph of a surface of the scalp before application of a composition according to the invention
- FIG. 2B shows a photograph of a surface of the human scalp after three weeks of application of a composition according to the invention under the conditions of Example 1.
- FIG. 3A represents a photograph of a surface of the scalp before application of a composition according to the invention
- FIG. 3B shows a photograph of a surface of the human scalp after three weeks of application of a composition according to the invention and one week after stopping the application under the conditions of Example 1.
- FIG. 4 represents a photograph by confocal microscopy of a histological section of an epidermis reconstructed after immunostaining with filaggrin (in green): 4A-untreated control; 4B—after treatment with 0.01% (w/v) of rice protein hydrolyzate from Example 4 free of peptide according to the invention; 4C—after treatment with 0.01% (w/v) of the peptide according to the invention, in particular in the form of the hydrolyzate according to Example 2b, under the conditions of Example 6.
- Example 1 Production of the peptides of SEQ ID No. 1, SEQ IP No. 2, SEQ IP No. 3 or SEQ IP No. 4
- Peptide SEQ ID No. 1 GYYGEQQQQPGMTR
- This 14 amino acid peptide can be obtained from a rice protein hydrolyzate (Oryza sativ) as described in example 2 or as described in patent application WQ2017009484A1 for obtaining the sequence SEQ ID No. 423 or by chemical synthesis. It has a molecular weight of 1642.72 daltons.
- Peptide SEQ ID No. 2 SEEGYYGEQQQQPGMTR
- This 17 amino acid peptide can be obtained from a rice protein hydrolyzate (Oryza sativa) as described in Example 2 or be obtained as described in patent application WQ2017009484 for obtaining the sequence SEQ ID No. 424 or by chemical synthesis. It has a molecular weight of 1988.01 Daltons.
- the peptides of SEQ ID No. 1 and/or SEQ ID No. 2 can be combined with the peptides of SEQ ID No. 3 and/or SEQ ID No. 4, optionally in the form of a hydrolyzate according to example 2.
- This 16 amino acid peptide can be obtained from a rice protein hydrolyzate (Oryza sativa) as described in Example 2 or be obtained as described in patent application WQ2017009484 for obtaining the sequence SEQ ID N °218 or by chemical synthesis. It has a molecular weight of 1971.97 daltons.
- This 12 amino acid peptide can be obtained from a rice protein hydrolyzate (Oryza sativa) as described in Example 2 or be obtained as described in patent application WQ2017009484 for obtaining the sequence SEQ ID N °194 or by chemical synthesis. It has a molecular weight of 1294.37 daltons.
- Example 2 Production of hydrolysates enriched in peptide SEQ IP No. 1 and/or SEQ IP No. 2 according to the invention
- This hydrolyzate has a pH of 4.2;
- This hydrolyzate contains, by weight relative to the dry weight of the hydrolyzate: the peptide SEQ IP No. 1 at the content of 0.0031% and the peptide SEQ IP No. 2 at the content of 0.0028%.
- This hydrolyzate has a pH of 4.1; - This hydrolyzate contains, by weight relative to the dry weight of the hydrolyzate: the peptide SEQ ID No. 1 at the content of 0.0033% and the peptide SEQ ID No. 2 at the content of 0.0111%.
- This hydrolyzate has a pH of 4.2;
- This hydrolyzate contains, by weight relative to the dry weight of the hydrolyzate: the peptide SEQ ID No. 1 at the content of 0.0016% and the peptide SEQ ID No. 2 at the content of 0.0012%.
- Example 3 Measurement of average molecular weight and peptides.
- the average molecular weight defined in Daltons (Da) and the distribution of the molecular weights are determined by steric exclusion chromatography.
- the Agilent 1260 Infinity liquid chromatography apparatus with binary pump and degasser was used in combination with PSS WinGPC UniCh-rom.
- P55 WinGPC UniChrom is a macromolecular chromatography data system with manufacturer-independent real-time data acquisition for comprehensive analysis of macromolecules, and is suitable for the analysis of protein hydrolysates.
- the chromatographic column used is a specific chromatographic column (Superdex Peptide 10/300 GL from GE Healthcare Life Science, pore width 100 A, particle size 5 ⁇ m) for the high resolution separation of proteins and peptides.
- This column was chosen because it is particularly well suited to determine biomolecules with a molecular weight between 100 and 7,000 daltons.
- Dilute hydrochloric acid (0.05 M) with a flow rate of 0.5 ml/min was used as the eluent.
- Detection was performed with a refractive index detector (RID).
- Samples were prepared by filtration through a 0.2 ⁇ m filter before injection.
- Liquid chromatography was performed using a 13 min gradient from 0 to 95% acetonitrile on an Aeris 1.7 ⁇ m Peptide XB-C18 150 x 2.1 mm reverse phase column (Phenomenex) coupled to a spectrometer of mass QTRAP 5500 (AB Sciex). Chromatographic peaks corresponding to predicted peptides were integrated using Skyline version 3.5 (University of Washington). Isotope-labeled peptides with a 13C, 15N labeled C-terminal arginine residue were synthesized and used as internal standards and calibration. The limit of detection (LOD) for each peptide was estimated using a signal-to-noise approach.
- LOD limit of detection
- a rice protein hydrolyzate marketed by BASF under the name Gluadin R Benz was studied as to its composition and its effects on the skin and the hair in the following examples.
- Example 5 Effect of a product according to the invention on the synthesis of involucrin
- Involucrin is a protein synthesized by the keratinocytes of the first spinous layers up to the granular layer of the human epidermis. During the differentiation of keratinocytes into corneocytes, involucrin is polymerized with other proteins to form the cornified envelope deposited on the inner face of the cell membrane. Involucrin expression is disrupted in several pro-inflammatory skin conditions; Several chemical irritants such as SDS (sodium dodecyl sulfate) and DNCB (dinitrochlorobenzene) modify the expression of involucrin by induction of TNF alpha.
- SDS sodium dodecyl sulfate
- DNCB dinitrochlorobenzene
- Example 2b the hydrolyzate according to the invention of Example 2b, compared to the rice protein hydrolyzate of Example 4, or without any product (untreated control called Ctrl).
- the content tested is expressed in weight of dry matter of the hydrolyzate on the total volume of the medium comprising the hydrolyzate.
- HBSS Hanks balance salts solution
- ELISA Kit ELISA Human involucrin BT601, Clinisciences France
- Table 1 The peptide-enriched hydrolyzate according to the invention stimulated the synthesis of involucrin by the keratinocytes. At isodose, the hydrolyzate according to the invention containing the peptide according to the invention was 1.3 times more effective than the comparison hydrolyzate of example 4. The presence of the peptides SEQ ID n°1 and SEQ ID n °2 explain this difference.
- the peptide according to the invention in particular in the form of the hydrolyzate according to Example 2b, stimulated the synthesis of filaggrin compared to the untreated control, and compared to the rice protein hydrolyzate of Example 4 devoid of peptide according to the invention.
- compositions tested in this clinical study are as follows (the percentages being expressed by weight):
- Table 2 The study was carried out on 44 female and male volunteers, aged 18 to 55, with a sensitive scalp and presenting with scattered and diffuse dry scales.
- the volunteers were divided into 2 groups: one group tested the composition according to the invention in the form of a shampoo containing rice hydrolyzate at 2% (w/w), and the second group tested the composition not not containing the hydrolyzate according to the invention called placebo.
- the shampoo was used 3 times a week for 21 days.
- the ability to improve scalp comfort was assessed by measuring scalp redness (DermoGenius Ultra), scalp pH (pHmeter), scalp sebum (Sebumeter), and scalp flaking assessment (by a score assigned by an expert). All measurements and the clinical score were also taken immediately after the first application, 1 and 3 weeks after using the products and then 1 week after stopping treatment as well (post-treatment period)
- the statistical analysis of the evolution of the instrumental parameters as a function of time was made after checking the normality of the distribution using the Shapiro-Wilk test: versus initial value by paired Student's t test or Wilcoxon test , and for comparison between products by unpaired Student's t-test or Mann-Whitney test.
- the evolution of the parameter as a function of time was made with the non-parametric Wilcoxon test or Mann-Whitney test. The significance level was set at 5% (p ⁇ 0.05).
- the first use of shampoo containing the rice protein hydrolyzate according to the invention at 2% led to an immediate significant improvement in the redness of the scalp, the pH of the scalp and the scale score.
- the shampoo containing the rice peptide hydrolyzate according to the invention at 2% also provided a milder cleansing effect on the scalp, with a significant lower reduction in the level of sebum on the scalp than the placebo shampoo.
- the shampoo containing the rice peptide hydrolyzate according to the invention at 2% has significantly reduced the redness of the scalp, reduced the pH of the scalp and reduced the scale score.
- the shampoo containing the rice protein hydrolyzate according to the invention at 2% also provided a mild cleansing effect on the scalp without significant modification of the normal rate of sebum of the scalp after one week and 3 weeks of use, whereas that the placebo shampoo decreased this scalp sebum level at the same time.
- the redness of the scalp in the group of volunteers who used the shampoo containing the rice protein hydrolyzate according to the invention at 2% was still significantly better than that of the placebo group, and the pH of their scalp was significantly lower than that of the group of volunteers who used the placebo shampoo.
- Example 8 Clinical study on skin hydration.
- the effect on skin hydration of the treatment with a rice protein hydrolyzate according to the invention at 2% (w/w) in a body lotion was tested versus a placebo treatment in a clinical study on human volunteers.
- the compositions of the body lotions used were as follows (percentage by weight)
- the hydration efficiency was evaluated using the corneometer. Measurements were taken at time points corresponding to baseline, as well as at 7, 14, and 28 days of treatment, and after 7 days after discontinuation of product use (35 days after baseline). A consumer self-perception questionnaire was also completed by the volunteers at 28 days.
- the statistical analysis of the evolution of the instrumental parameters as a function of time was made after checking the normality of the distribution using the Shapiro-Wilk test by paired Student's t test or Wilcoxon's signed rank test. .
- the significance level was set at 5% (p ⁇ 0.05).
- the statistical difference in frequencies (%) between favorable (agree) and unfavorable (disagree) opinions was evaluated using the 5% two-tailed binomial test.
- the body lotion containing the rice protein hydrolyzate according to the invention at 2% increased skin hydration significantly compared to the placebo body lotion after 2 and 4 weeks of 'use.
- the hydration of the skin was still significantly higher for the leg treated with the body lotion containing the rice protein hydrolyzate according to the invention at 2%, compared to baseline and placebo.
- Example 9 Formulation of a cosmetic ingredient according to the invention
- a cosmetic ingredient according to the invention contains in percentage by weight (w/w):
- Such an ingredient according to the invention is liquid and can be formulated according to the usual techniques known to those skilled in the art for the production of a cosmetic composition.
- HFSCs hair follicle stem cells
- This aging of the hair follicles is induced by the trans-epidermal elimination of stem cells by proteolysis of the hemidesmosomal protein COL17A1 (collagen BP180 / type XVII).
- This proteolysis of hemidesmosomes which anchor hair follicle stem cells to the basement membrane, causes senescent-like asymmetrical cell divisions and hair follicle aging.
- This proteolysis is triggered by neutrophil elastase, which is induced in aged HFSCs but is undetectable in young HFSCs, leading to COL17A1 depletion, hair follicle miniaturization or loss, and age-related hair loss.
- the peptide according to the invention in particular in the form of the hydrolyzate according to example 2b, showed a significant inhibition of the elastase activity compared to an untreated control at a dose of 0.1% (w/w), i.e. 2.2 times more effective than the reference hydrolyzate of example 4 devoid of peptide according to the invention.
- the peptide according to the invention in particular in the form of the hydrolyzate according to example 2b, stimulated the synthesis of collagen I significantly compared to an untreated control at a dose of 0.05% (w/w), either 2.4 times more effective than the rice protein hydrolyzate of example 4 devoid of peptide according to the invention.
- Example 11 Clinical study on the suppleness and firmness of the skin
- the volunteers applied a body lotion type composition similar to that of Example 7 per side of the abdomen.
- the body lotions were used twice a day for 28 days.
- the effect on firmness was assessed using a cutometer and the SkinFibrometer device.
- the body lotion containing the rice protein hydrolyzate according to the invention at 2% (w/w) increased the firmness of the skin, significantly compared to the placebo body lotion.
- Skin extensibility was also significantly increased compared to placebo after 28 days of product use.
- the firmness of the skin was still significantly higher for the side of the abdomen treated with the body lotion containing the rice protein hydrolyzate according to the invention at 2%, relative to the baseline and to the placebo.
- Example 12 Effects of the peptide according to the invention on the appearance of the hair
- a hydrolyzate according to the invention was evaluated for its hair repair properties by the DSC (Differential Scanning calorimetry) method according to conventional protocols.
- the DSC method is a common thermal analysis method for measuring the amounts of heat absorbed/emitted from a sample upon heating. Due to the different heat fluxes between the sample and the reference during the temperature change program (heating rate), conclusions can be drawn about the denaturation temperatures of treated hair (sample) compared to untreated hair ( reference).
- the TA Instruments Q 100 DSC apparatus with automatic sampler was used. The measurement was carried out according to the method of F. J. Wortmann et al., From: J. Cosmet. Sei., 2002, 53, 219-228) with a heating rate of 2°C/min.
- Damaged hair which has been treated with the protein hydrolyzate of the invention according to example 2 demonstrates a higher decomposition temperature, i.e. an improvement in the denaturation temperature of the hair, which is attributed to an improvement of the capillary structure.
- the method used is based on a 3D model of hair follicle pseudopapillae from dermal papillary fibroblasts cultured in aggregates to evaluate a revitalizing effect on hair follicles and an effect on increasing hair growth.
- the method is based on the aggregation of human hair papilla fibroblasts by gentle centrifugation of a suspension of human hair papilla fibroblasts.
- Human dermal fibroblasts were prepared in the form of a suspension in basal medium containing the rice peptide in the form of the hydrolyzate according to the invention of example 2c, compared to the rice protein hydrolyzate of example 4, or without any product (untreated control), and transferred to 96-well microplates.
- the cell suspensions were centrifuged for 5 minutes at 200g and then the aggregates formed were incubated for 5 days at 37°C, 5% CO2 and relative humidity over 95%.
- the aggregates were rinsed with a balanced salt solution (PBS) then disrupted by incubation for about 1 hour with a mixture of proteases (Collagenase A, Trypsin) with EDTA. Then, part of the cell suspensions was centrifuged and the pellets were collected to measure the level of DNA (deoxyribose nucleic acid). The DNA was measured on a cell solubilized in a specific buffer according to the kit manufacturer's recommendations (CyQUANT NF Cell Proliferation Assay Kit, Invitrogen, France).
- results are expressed as a percentage relative to the untreated control and expressed as an average.
- the peptide according to the invention in the form of a hydrolyzate according to the invention stimulated the total DNA content in the fibroblasts of pseudopapillae compared to the untreated control and to the reference rice protein hydrolyzate (example 4).
- the peptide according to the invention in the form of a hydrolyzate according to the invention was 5 times more effective than the rice protein hydrolyzate of Example 4.
- Example 13 Examples of O/W polymer gel formulation
- Suitable formulations are also those described in BASF patent application US20190216709 Examples B3 to B9, replacing the peptide of Example 2 with the hydrolyzate according to the invention described in Example 2a).
- the peptides used in the context of the invention are collated in Table 7 below:
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Abstract
Description
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| Application Number | Priority Date | Filing Date | Title |
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| FR2010090A FR3114744B1 (fr) | 2020-10-02 | 2020-10-02 | Nouvelle utilisation d’un peptide pour améliorer le confort de la peau et/ou des muqueuses et/ou l’apparence des phanères |
| PCT/FR2021/051703 WO2022069844A1 (fr) | 2020-10-02 | 2021-10-01 | Nouvelle utilisation d'un peptide pour améliorer le confort de la peau et/ou des muqueuses et/ou l'apparence des phanères |
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| BR (1) | BR112023006002A2 (fr) |
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| FR3142885A1 (fr) * | 2022-12-09 | 2024-06-14 | Benu Blanc | Emulsion cosmetique/dermatologique |
| CN116712526A (zh) * | 2023-07-04 | 2023-09-08 | 云曼(深圳)健康科技有限公司 | 一种防脱生发精华液及其制备方法 |
| FR3151214A1 (fr) * | 2023-07-19 | 2025-01-24 | Societe Industrielle Limousine D'application Biologique | Principe actif à partir d’un isolat protéique d’Oryza sativa pour lutter contre l’inflammation cutanée. |
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|---|---|---|---|---|
| ITTO20011053A1 (it) | 2001-11-07 | 2003-05-07 | Zschimmer E Schwarz Italiana S | Uso di sali di capriloil glutammato e-o capriloil idrolizzato di proteine di grano e-o riso nella formulazione di composizioni detergenti o |
| KR100544831B1 (ko) | 2003-06-17 | 2006-01-24 | 한불화장품주식회사 | 발아된 검은콩 및 검은쌀 단백질분해효소로 가수분해한 펩타이드 혼합물을 함유하는 화장료 조성물 |
| FR2877568B1 (fr) * | 2004-11-10 | 2008-03-21 | Oreal | Composition cosmetique comprenant un hydrolysat de proteines de riz et un agent augmentant la synthese des glycosaminoglycannes |
| FR2894142B1 (fr) * | 2005-12-05 | 2009-06-12 | Oreal | Utilisation de l'association du dipeptide tyrosine-arginine et de la niacimanide en tant qu'antagoniste de substance p |
| FR2915383B1 (fr) * | 2007-04-27 | 2010-01-15 | Vincience | Utilisation d'un principe actif issu du riz (oryza sativa l.) pour preparer une composition destinee a activer l'energie cellulaire et a proteger la peau des dommages oxydatifs. |
| FR2956818B1 (fr) * | 2010-02-26 | 2012-07-20 | Isp Investments Inc | Utilisation d'un hydrolysat peptidique de lin dans une composition pour apaiser la peau |
| FR2976587B1 (fr) | 2011-06-20 | 2015-04-03 | Basf Beauty Care Solutions F | Methode de dosage in vitro par technique immunologique |
| MX2016003944A (es) * | 2013-09-25 | 2016-12-09 | Pronutria Biosciences Inc | Composiciones y formulaciones para mantener y aumentar la masa muscular, fuerza y rendimiento y metodos de produccion y usos de los mismos. |
| KR102576571B1 (ko) | 2015-07-16 | 2023-09-11 | 뉴리타스 리미티드 | 항염증 펩티드, 및 그의 용도 |
| EP3118216A1 (fr) | 2015-07-16 | 2017-01-18 | Nuritas Limited | Peptides favorisant la croissance et la prolifération cellulaire et leurs utilisations |
| JP7005601B2 (ja) | 2016-09-13 | 2022-01-21 | ビーエーエスエフ ソシエタス・ヨーロピア | タンパク質加水分解物 |
-
2020
- 2020-10-02 FR FR2010090A patent/FR3114744B1/fr active Active
-
2021
- 2021-10-01 WO PCT/FR2021/051703 patent/WO2022069844A1/fr not_active Ceased
- 2021-10-01 BR BR112023006002A patent/BR112023006002A2/pt unknown
- 2021-10-01 EP EP21799310.4A patent/EP4221678A1/fr active Pending
- 2021-10-01 KR KR1020237010990A patent/KR20230074492A/ko active Pending
- 2021-10-01 CN CN202180065694.5A patent/CN116322637A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN116322637A (zh) | 2023-06-23 |
| KR20230074492A (ko) | 2023-05-30 |
| WO2022069844A1 (fr) | 2022-04-07 |
| BR112023006002A2 (pt) | 2023-05-02 |
| FR3114744B1 (fr) | 2024-01-05 |
| FR3114744A1 (fr) | 2022-04-08 |
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