CN116940333A - Cosmetic composition for improving skin by regulating porphyrin production of skin resident bacteria and regulating hyaluronidase - Google Patents

Cosmetic composition for improving skin by regulating porphyrin production of skin resident bacteria and regulating hyaluronidase Download PDF

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CN116940333A
CN116940333A CN202280016884.2A CN202280016884A CN116940333A CN 116940333 A CN116940333 A CN 116940333A CN 202280016884 A CN202280016884 A CN 202280016884A CN 116940333 A CN116940333 A CN 116940333A
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skin
cosmetic composition
propionibacterium acnes
inhibiting
acid
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邢京恩
安秉俊
姜来圭
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LG H&H Co Ltd
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LG Household and Health Care Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67Vitamins
    • A61K8/673Vitamin B group
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60Sugars; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67Vitamins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/08Anti-ageing preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/74Biological properties of particular ingredients
    • A61K2800/78Enzyme modulators, e.g. Enzyme agonists
    • A61K2800/782Enzyme inhibitors; Enzyme antagonists

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  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Gerontology & Geriatric Medicine (AREA)
  • Cosmetics (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The present disclosure provides a cosmetic composition capable of healthy rebalancing of a skin microbiome without affecting the growth of skin resident bacteria that have no adverse effect on skin health while reducing the growth of skin resident bacteria that are adverse to skin health and the production of the deleterious factor porphyrin (porphyrins). The present disclosure also provides a cosmetic composition capable of inhibiting porphyrin production by a porphyrin-producing strain. The present disclosure also provides a skin improvement composition that inhibits decomposition of hyaluronic acid in skin by inhibiting the activity of hyaluronic acid degrading enzymes secreted by skin resident bacteria, thereby helping to preserve moisture and prevent aging.

Description

Cosmetic composition for improving skin by regulating porphyrin production of skin resident bacteria and regulating hyaluronidase
Technical Field
The present application claims priority based on korean application No. 10-2021-0028329, filed on 3 months of 2021, and all matters disclosed in the specification and drawings of this application are incorporated herein.
The present application relates to a cosmetic composition capable of advantageously regulating (rebalancing) the growth and metabolism (metanolome) of skin resident bacteria. The present application also relates to a cosmetic composition capable of inhibiting the production of skin-harmful substances (for example, inhibiting the production of porphyrin by a porphyrin-producing strain, etc.), and inhibiting the hyaluronic acid-decomposing ability of a strain secreting a hyaluronic acid-decomposing enzyme.
Background
There are millions of bacteria, molds and viruses on the skin that make up the skin microbiome (skin microbiome). Microbiome (Microbiome) refers to the sum of microorganisms present in a particular environment. The presence of genes of microorganisms present in humans in hundreds of times the human genes affects various functions in humans.
It is known that a large part of the human microbiota is present in the intestinal tract, but that a variety of microorganisms are also present in the skin. Microorganisms present in the skin are also known to play an essential role in various metabolism of pathogenic bacteria invasion, immune system regulation, natural substance decomposition, etc., similar to those in the intestinal tract, and may affect the health state of a person. The skin, which is the largest organ of the human body, is colonized by beneficial microorganisms and serves as a physical barrier against pathogenic bacteria invasion. Skin diseases or systemic diseases may occur when the barrier is weakened or the balance between the symbiont and the pathogen is broken. Research into the composition of microbiota at the skin site of humans helps reveal the etiology of common skin diseases or the association with skin conditions.
When a bactericide or an antibiotic having a strong bactericidal action, which is capable of removing all the indigenous microflora of the skin, is used, there is a risk that bacteria that have a beneficial effect on the skin may also be removed, and the appearance and proliferation of resistant bacteria to the component may be promoted. In addition, when the use of bactericides or antibiotics is stopped, since the existing skin colony balance is broken, there is a risk that bacteria which are not ideal for the skin may preferentially grow and induce opportunistic infections and the like. When a substance capable of selectively regulating colonies is used instead of a broad-spectrum antibiotic, the proportion of bacteria having beneficial effects on the skin can be increased while avoiding a wide range of side effects on the indigenous microflora of the skin.
That is, a breakdown in the balance between beneficial and harmful bacteria present in the skin may induce opportunistic infections. Thus, maintaining the balance between microorganisms is an important part of maintaining a healthy skin state.
Propionibacterium acnes (Cutibacterium acne, c.acre) break down sebum into glycerin and fatty acids in order to maintain the skin weakly acidic, and act to inhibit invasion or growth of pathogenic bacteria. Is one of the main strains often residing on the skin and plays an important role in maintaining the skin barrier. Therefore, it is not preferable to apply an antibiotic having an antibacterial or bactericidal effect, which may affect the whole propionibacterium acnes, to the skin.
Recently, phylogenetic analyses of acne bacteria have been performed, clearly knowing that there are strains of propionibacterium acnes (Cutibacterium acne) that are mainly present in healthy people and not in acne patient groups, and strains of propionibacterium acnes that are mainly present in acne patients and not in healthy skin. In addition, propionibacterium acnes differ in the nature of harmful molecules such as systemic secretion proteases, lipases, hemolysins, porphyrins (porphyrins) and the like, and induce skin harmful reactions by these which can decompose host tissues or induce inflammatory reactions and the like.
For example, for porphyrin numbers, higher was observed in acne skin compared to healthy skin and higher was observed in acne lesions compared to non-lesions of acne patients. In particular, propionibacterium acnes strains of the acne-related system are known to produce higher concentrations of porphyrins. In addition, it is known that porphyrin can be produced also against staphylococcus aureus (s. Aureus) which has a problem in allergic dermatitis, wound infection, and the like.
Porphyrins not only induce oxidative stress in the skin, promote the expression of inflammatory cytokines by keratinocytes, but also induce a carbonylation reaction that is one of protein oxidation, thereby darkening the skin tone and making the skin look unhealthy. Therefore, it is used as one measurement index in various skin measuring instruments and needs to be regulated as one of the main detrimental factors of skin microorganisms.
Disclosure of Invention
Technical problem
Accordingly, an object of the present application is to provide a cosmetic composition capable of suppressing skin resident bacteria (e.g., a specific propionibacterium acnes strain) that have a relatively adverse effect on the skin (e.g., cause acne, etc.), while the growth of skin resident bacteria (e.g., a specific propionibacterium acnes strain) that have no much effect on the skin is relatively less, thereby rebalancing the skin resident bacteria colonies.
Another object of the present application is to provide a skin improving composition which can regulate skin-damaging factors inducing oxidative stress, inflammation, and the like of the skin by inhibiting the production of porphyrin secreted by microorganisms present in the skin.
In addition, a skin improvement composition capable of preventing decomposition of hyaluronic acid by inhibiting a hyaluronic acid decomposing enzyme secreted by a microorganism is provided.
Technical proposal
In order to solve the above-described problems, the present disclosure provides a cosmetic composition for regulating skin microbiome (microbiome) comprising any one or more selected from the group consisting of thiamine or a cosmetically acceptable salt thereof and saccharide isomer (saccharide isomerate) as an active ingredient.
Another aspect of the present disclosure provides a cosmetic composition for modulating propionibacterium acnes in a skin microbiome (microbiome) comprising any one or more selected from the group consisting of thiamine or a cosmetically acceptable salt thereof and saccharide isomer (saccharide isomerate) as an active ingredient.
According to one aspect of the present disclosure, the cosmetic composition of the present application may be used for improving skin by modulating porphyrin production and/or modulating hyaluronan degrading enzymes in skin resident bacteria. Accordingly, one aspect of the present disclosure provides a skin improvement composition that modulates skin deleterious factors that induce oxidative stress and inflammation of the skin, etc., by inhibiting the production of porphyrin secreted by microorganisms present in the skin. Another aspect of the present disclosure provides a skin improvement composition capable of preventing hyaluronic acid from being decomposed by inhibiting a hyaluronic acid decomposing enzyme secreted by a microorganism.
Preferably, the above cosmetic composition of the present disclosure contains thiamine or a cosmetically acceptable salt thereof as an active ingredient.
The present inventors have conducted tests on various substances such as amino acids, amino acid derivatives, extracts, saccharides, vitamins, perfume ingredients, etc., and confirmed that only the compounds of the present application exhibit the desired effects of the present application, thereby completing the present application.
According to Fitz-Gibbon, s.etc. (2013) Propionibacterium acnes Strain Populations in the Human Skin Microbiome Associated with acne. Journal of Investigative Dermatology,133 (9), 2152-2160, etc., propionibacterium acnes, one of the skin resident bacteria, can be classified into the following categories, of which RT4 and RT5 are known to be acne-inducing based on ribotyping (ribotype), and RT6 is known to be present in a large amount in healthy skin.
TABLE 1
Ribosome type (Ribotype) RT4 (e.g., HL053PA1 strain) RT6 (example)E.g., HL110PA3 strain)
Acne induction Has the following components Without any means for
Culture speed Slow (6 days) Moderate (4 days)
Porphyrin production High (500 nM) Low (about 30 nM)
HA decomposition ability Low and low Very high
HL053PA1 strain and the like produce excessive amounts of porphyrins that can induce inflammation and oxidative stress, and as such, can cause inflammation such as acne by inducing secretion of inflammatory cytokines in the skin. The cosmetic compositions of the present disclosure inhibit the growth of acne-induced types (e.g., RT4 or RT5, type IA based on recA) in propionibacterium acnes, while having relatively no effect on the growth of acne-non-induced types (e.g., RT 6), so that the microbiome ecology of dominant species can be maintained.
Furthermore, the cosmetic composition of the present disclosure inhibits porphyrin production of skin resident bacteria, particularly porphyrin production of acne-induced propionibacterium acnes strain or porphyrin production of strains such as staphylococcus aureus, thereby greatly contributing to inhibition of acne induction, or increase of dermal density of skin, or improvement of skin dryness symptoms, or improvement of skin color.
According to recent studies, it was shown that strains belonging to RT6 (or recA-based type II) produce relatively few harmful factors such as porphyrins, but can produce excessive amounts of hyaluronidase. In addition, it is known that various bacteria such as staphylococcus aureus can produce hyaluronan degrading enzymes.
In this regard, the cosmetic composition of the present disclosure may exhibit a very advantageous effect as a cosmetic composition for improving skin elasticity or the like by inhibiting hyaluronic acid decomposition of skin resident bacteria, in particular, inhibiting hyaluronic acid decomposition caused by propionibacterium acnes strain or staphylococcus aureus. The inhibition of the hyaluronic acid decomposition ability also improves the dermis density, and also shows good effects in the aspects of moisture retention, aging prevention and the like.
In the present application, "cosmetically acceptable salts" include salts of the active compounds prepared with relatively non-toxic acids. Acid addition salts can be obtained by contacting the neutral form of such compounds with a sufficient amount of the desired acid, pure or suitable inert (insert) solvent. Examples of cosmetically acceptable acid addition salts include not only salts derived from relatively nontoxic organic acids including acetic acid, propionic acid, isobutyric acid, oxalic acid (oxalic acid), maleic acid (maleic acid), malonic acid (malonic acid), benzoic acid, succinic acid, suberic acid (succinic acid), fumaric acid (fumaric acid), mandelic acid (mandelc), phthalic acid (phthalic acid), benzenesulfonic acid (benzenesulfonic), p-toluenesulfonic acid (tolylsulfonic acid), citric acid, tartaric acid, methanesulfonic acid (methanesulfonic acid) and the like, but also hydrogen chloride, hydrogen bromide, nitric acid, carbonic acid, monohydrocarbonic acid (monohydrogencarbonic acid), phosphoric acid (phosphonic acid), monohydrogen phosphoric acid, dihydrogen phosphoric acid, sulfuric acid, monohydrogen sulfuric acid, hydrogen iodide or phosphorous acid (phosphonic acid) and the like. Also included are salts of amino acids, such as arginine (arginate) and analogs thereof, and analogs of organic acids, such as glucuronic acid (glucuronic) or galacturonic acid (galacturonic) and analogs thereof. Other examples of salts can be found in the literature known in the art to which the present application pertains.
In the cosmetic composition of the present application, the total content of the above-mentioned active ingredients is preferably 0.00001 to 10% by weight based on the total weight of the cosmetic composition.
The active ingredient of the present application may exist not only in a solvated form including a hydrate, an ethanolate and the like, but also in a non-solvated (unsolvated) form. The active ingredient of the present application can exist in a crystalline or amorphous form, and all such physical forms are included within the scope of the present application.
The cosmetic composition of the present application may be prepared into a dosage form selected from the group consisting of a solution, a topical ointment, a cream, a foam, a nutritional lotion, a skin softening lotion, a mask, a soft water, an emulsion, a pre-makeup base, an essence, a soap, a liquid cleansing, a bathing agent, a sun cream, a sun oil, a suspension, an emulsion, a paste, a gel, a lotion, a powder, a soap, a surfactant-containing cleansing agent, an oil, a powder foundation, an emulsion foundation, a wax foundation, a patch, and a spray, but is not limited thereto.
The cosmetic composition of the present application may further comprise one or more cosmetically acceptable carriers blended in a normal skin cosmetic, and as a conventional ingredient, for example, oil, water, surfactant, moisturizer, lower alcohol, thickener, chelating agent, pigment, preservative, perfume, etc. may be suitably blended, but is not limited thereto.
The cosmetically acceptable carrier contained in the cosmetic composition of the present application is various depending on the dosage form. When the dosage form of the present application is an ointment, paste, cream or gel, as a carrier component, animal oil, vegetable oil, wax (wax), paraffin (Paraffin), starch, tragacanth (tragacanth), cellulose derivatives, polyethylene glycol, silicone, bentonite, silica, talc, zinc oxide or mixtures thereof can be used.
When the dosage form of the present application is a powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate, polyamide powder or mixtures thereof can be used as carrier ingredients, and in particular, when a spray is used, propellants such as chlorofluorocarbons, propane/butane or dimethyl ether can be additionally contained.
When the dosage form of the present application is a solution or emulsion, as a carrier component, a solvent, a solubilizing agent (solubilizer), or an opacifying agent, such as water, ethanol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl benzoate, propylene glycol, 1, 3-butyl glycol oil, particularly cotton seed oil, peanut oil, corn seed oil, olive oil, castor oil and sesame oil, glycerin fatty ester, polyethylene glycol or fatty acid ester of sorbitan is used.
When the dosage form of the present application is a suspension, as the carrier component, there may be used liquid diluents such as water, ethanol or propylene glycol, suspending agents such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar-agar or tragacanth, and the like.
When the dosage form of the present application is a soap, alkali metal salts of fatty acids, fatty acid half ester salts, fatty acid protein hydrolysates, isethionates, lanolin derivatives, fatty alcohols, vegetable oils, glycerin, sugar, and the like can be used as carrier components.
All the components described in the present application preferably do not exceed the maximum use value specified in the relevant regulations and regulations such as korea, china, united states, europe, japan, etc. (for example, relevant regulations such as cosmetic safety standards (korea), cosmetic safety technical regulations (china), food act (korea), food additive act (korea), health function act (korea), health regulations (china)), etc. That is, the cosmetic, food or personal care composition of the present application preferably includes the components of the present application within the content limits allowed in the relevant regulations and specifications of each country.
Effects of the application
The compositions, particularly cosmetic compositions, provided in the present disclosure exhibit the effect of inhibiting the growth of the propionibacterium acnes type that is frequently present in patients suffering from acne in the skin's predominant resident bacteria, such as propionibacterium acnes, and the production of deleterious factors (porphyrins). In addition, it is also possible to exhibit an effect of inhibiting the activity of hyaluronidase (hyaluronidase) produced by the strain without affecting the growth of propionibacterium acnes type which is mainly present in non-inflammatory skin. In addition, it is also possible to exhibit an effect of inhibiting porphyrin production and/or hyaluronidase (hyaluronidase) activity produced by bacteria present in the skin such as staphylococcus aureus other than propionibacterium acnes.
Drawings
The following drawings accompanying the present specification illustrate preferred embodiments of the present application and, together with the description of the application given above, serve to further understand the technical idea of the present application, and therefore the present application should not be construed as being limited to only those matters described in these drawings.
FIG. 1 is a graph of the results of evaluating the effect of thiamine salts on pathogenic strains of Propionibacterium acnes.
FIG. 2 is a result of evaluating the effect of thiamine salts on non-pathogenic strains of Propionibacterium acnes.
FIG. 3 is a result of evaluating the effect of thiamine salts on porphyrin production by pathogenic and non-pathogenic strains of Propionibacterium acnes.
FIG. 4 is a graph showing the results of evaluating the effect of thiamine salts on porphyrin production by Staphylococcus aureus strains.
FIG. 5 is a result of evaluating the effect of thiamine salts on the hyaluronic acid decomposing ability of non-pathogenic strains of Propionibacterium acnes.
FIG. 6 is a graph showing the results of evaluating the effect of thiamine salts on the hyaluronic acid decomposing ability of Staphylococcus aureus strains.
FIG. 7 is a result of evaluating the effect of saccharide isomerate on the growth of propionibacterium acnes pathogenic and nonpathogenic strains and on porphyrin production of propionibacterium acnes pathogenic strains. In fig. 7, a is a result of evaluating an effect on the strain growth of the propionibacterium acnes strain HL053PA1 related to acne skin, b is a result of evaluating an effect on the strain growth of the propionibacterium acnes strain HL110PA3 related to healthy skin, c is a result of evaluating an effect on the porphyrin production of the propionibacterium acnes strain HL053PA1 related to acne skin, and d is a result of evaluating an effect on the hyaluronic acid decomposition rate of the propionibacterium acnes strain HL110PA3 related to healthy skin.
Detailed Description
Hereinafter, in order to assist understanding of the present application, detailed description will be made of exemplary embodiments and the like. However, the embodiments of the present application may be modified into various forms, and the scope of the present application should not be construed as being limited to the following embodiments. Embodiments of the present application are provided to more fully describe the present application to those of ordinary skill in the art to which the present application pertains.
For reference, the following experimental methods are carried out except for the specifically mentioned materials and methods in the paper "Vitamin B12modulates the transcriptome of the skin microbiota in acne pathogenesis" (Sci Transl Med.2015Jun 24;7 (293): 293ra103.Doi:10.1126/scitranslmed. Aab 2009.) or "The Skin Bacterium Propionibacterium acnes Employs Two Variants of Hyaluronate Lyase with Distinct Properties" (microorganisms.2017 Sep 12;5 (3): 57.Doi:10.3390/microorganisms 5030057).
1. Inhibition of Propionibacterium acnes strain growth (FIG. 1)
The experimental method comprises the following steps: experiments were performed to confirm the effect of Thiamine HCl on the proliferation of propionibacterium acnes associated with acne.
Propionibacterium acnes type HL053PA1 strain mainly present in acne patients was cultured and activated in BHI broth, and then re-inoculated at the same turbidity. At this time, thiamine hydrochloride was treated at a concentration of 1w/v% and cultured for 7 days, and then absorbance was measured at 595nm to confirm the effect on strain proliferation. The results are shown in FIG. 1.
Results: it was confirmed that thiamine hydrochloride treatment reduced growth by about 70% compared with untreated group, thereby inhibiting the growth of propionibacterium acnes which mainly released harmful factors.
2. Propionibacterium acnes strain growth related to ordinary skin (FIG. 2)
The experimental method comprises the following steps: experiments were performed to confirm the effect of thiamine hydrochloride on the proliferation of propionibacterium acnes, which is mainly present only in normal skin without inflammation (e.g. acne).
Propionibacterium acnes type HL110PA3 strain, which is mainly present only in ordinary skin, was cultured and activated in BHI liquid medium, and then re-inoculated at the same turbidity. At this time, thiamine hydrochloride was treated at a concentration of 1% and cultured for 7 days, and then absorbance was measured at 595nm to confirm the effect on strain proliferation. The results are shown in FIG. 2.
Results: when thiamine hydrochloride is treated, the growth of the propionibacterium acnes type of the ordinary skin type is not greatly affected compared with the growth of the propionibacterium acnes type which is related to the acne is remarkably reduced.
3. Effect of inhibiting porphyrin production (fig. 3)
The experimental method comprises the following steps: experiments were performed to confirm the effect on porphyrins (porphyrins) known to induce oxidative stress and to participate in inflammation such as acne in the skin.
Propionibacterium acnes HL053PA1 and HL110PA3 strains were cultured and activated in BHI broth, respectively, and then re-inoculated at the same turbidity. At this time, thiamine hydrochloride was treated at 1% concentration and cultured for 7 days, and then the strain culture was recovered. Ethyl acetate and acetic acid (4:1, vol/vol) were added to extract 400. Mu.l of bacterial culture. The extract was centrifuged and the upper porphyrin-containing layer was recovered by layer separation. To the recovered supernatant, 1.5M HCl was added for dissolution, and layer separation was performed by centrifugation, thereby recovering the lower layer. Fluorescence measurements were performed at 405nm/620nm for the recovered soluble phase. The results are shown in FIG. 3.
Results: the propionibacterium acnes strain associated with acne produces a large amount of porphyrins compared to propionibacterium acnes strain present in ordinary skin. When thiamine hydrochloride was treated, the amount of porphyrin present in the culture of acne-related strain HL053PA1 was significantly reduced.
4. Porphyrin production inhibitory Effect in other porphyrin-producing Strain (FIG. 4)
Staphylococcus aureus strains were grown and activated in BHI broth to be re-inoculated at 1/100 concentration. Thiamine hydrochloride was treated at a concentration of 1w/v% and cultured for 24 hours, and then the strain culture was recovered. Ethyl acetate and acetic acid (4:1, vol/vol) were added to extract 400. Mu.l of bacterial culture. The extract was centrifuged and the upper porphyrin-containing layer was recovered by layer separation. To the recovered supernatant, 1.5M HCl was added for dissolution, and layer separation was performed by centrifugation, thereby recovering the lower layer. Fluorescence measurements were performed at 405nm/620nm for the recovered soluble phase. The results are shown in FIG. 4.
Results: when thiamine hydrochloride is treated, the amount of porphyrin secreted by staphylococcus aureus is significantly reduced.
5. Efficacy of inhibiting hyaluronic acid decomposition (FIG. 5)
The experimental method comprises the following steps: experiments were performed to confirm whether the activity of the hyaluronidase secreted by the ordinary skin-related propionibacterium acnes strain HL110PA3 was inhibited.
HL110PA3 strain was cultured and activated in BHI broth, and then re-inoculated at the same turbidity. At this time, thiamine hydrochloride was treated at a concentration of 1% and cultured for 7 days, and then the culture broth was recovered. To determine the activity of the hyaluronan-degrading enzyme secreted by propionibacterium acnes, hyaluronic acid and the culture broth were mixed and reacted at 37℃for 20 minutes. After completion of the reaction, 1% BSA sodium acetate buffer (sodium acetate buffer) was added to coagulate the remaining hyaluronic acid and BSA, and the absorbance was taken at 540nm to confirm the degree of decomposition of the hyaluronic acid. The results are shown in FIG. 5.
Results: propionibacterium acnes non-pathogenic strain HL110PA3 is isolated from healthy skin without inflammatory lesions and is therefore generally classified as propionibacterium acnes of healthy skin, but as shown in the experimental results, secretes a hyaluronan degrading enzyme and thus can degrade hyaluronic acid in the skin. It was confirmed that about 85% of the hyaluronic acid was decomposed within 20 minutes when the untreated culture medium was treated, whereas about 60% of the hyaluronic acid was decomposed in the culture medium of the experimental group treated with thiamine hydrochloride, and about 30% of the hyaluronic acid was suppressed from being decomposed in comparison with the control group.
6. Hyaluronic acid decomposition inhibition efficacy in other strains secreting hyaluronidase (FIG. 6)
The experimental method comprises the following steps: experiments were performed to determine whether the activity of the hyaluronan degrading enzyme of staphylococcus aureus was inhibited.
Staphylococcus aureus strains were grown and activated in BHI broth to be re-inoculated at 1/100 concentration. Thiamine hydrochloride was treated at a concentration of 1% and cultured for 24 hours, and then the strain culture solution was recovered. To determine the activity of hyaluronan-degrading enzyme secreted by Staphylococcus aureus, hyaluronic acid was mixed with the culture broth and reacted at 37℃for 90 minutes. To determine the remaining hyaluronic acid without decomposition, the remaining hyaluronic acid was quantified using the hyaluronic acid ELISA (hyaluronan ELISA) kit.
Results: staphylococcus aureus, which is found to have a high frequency in allergic dermatitis lesions and the like, can decompose hyaluronic acid. It was confirmed that when the untreated culture medium was treated, 50% or more of the hyaluronic acid was decomposed, whereas when the culture medium of the experimental group treated with thiamine hydrochloride was less than 10% of the hyaluronic acid was decomposed, the decomposition of hyaluronic acid was significantly suppressed.
7. Evaluation results of saccharide isomers (FIG. 7)
The effect of saccharide isomers on the growth of propionibacterium acnes pathogenic and nonpathogenic strains was evaluated in the same manner as the thiamine salts described above. The results are shown in FIG. 7. As saccharide isomers, use is made ofAnd (5) a product.
As shown in fig. 7, it was confirmed that saccharide isomers also inhibit the growth of harmful propionibacterium acnes that induce acne, while the growth inhibition of beneficial propionibacterium acnes is relatively small, thus having the effect of rebalancing the strain. In addition, it was confirmed that the compound exhibits an inhibitory effect on the production of porphyrin and the production of hyaluronidase.

Claims (7)

1. A cosmetic composition for regulating skin microbiome (microbiome) comprising any one or more selected from the group consisting of thiamine or a cosmetically acceptable salt thereof and saccharide isomer (saccharide isomerate) as an active ingredient.
2. The cosmetic composition of claim 1, wherein the cosmetic composition is used for modulating propionibacterium acnes (Cutibacterium acne) in a skin microbiome (microbiome).
3. A cosmetic composition according to claim 2, wherein said composition inhibits the growth of propionibacterium acnes HL053PA1 strain more than propionibacterium acnes HL110PA3 strain.
4. A cosmetic composition for inhibiting porphyrin production by microorganisms, comprising any one or more selected from the group consisting of thiamine or a cosmetically acceptable salt thereof and saccharide isomer (saccharide isomerate) as an active ingredient.
5. A cosmetic composition according to claim 3, wherein the cosmetic composition is used for inhibiting oxidative stress of skin, or improving skin inflammation, or inhibiting acne induction, or increasing dermis density, or improving xerosis cutis symptoms, or improving skin tone.
6. A cosmetic composition for inhibiting a hyaluronidase secreted by a microorganism, comprising any one or more selected from the group consisting of thiamine or a cosmetically acceptable salt thereof and saccharide isomerate (saccharide isomerate) as an active ingredient.
7. The cosmetic composition according to claim 6, wherein the composition is used for improving skin elasticity, dryness, or aging symptoms by inhibiting the decomposition ability of hyaluronic acid.
CN202280016884.2A 2021-03-03 2022-02-16 Cosmetic composition for improving skin by regulating porphyrin production of skin resident bacteria and regulating hyaluronidase Pending CN116940333A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2021-0028329 2021-03-03
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US20050019354A1 (en) * 2003-07-23 2005-01-27 Perricone Nicholas V. Topical benfotiamine treatments
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