Anti-carbonylation composition and use thereof
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- ELC MANAGEMENT LLC
- Filing Date
- 2023-08-21
- Publication Date
- 2026-07-01
Smart Images

Figure PCTCN2023113937-FTAPPB-I100001 
Figure PCTCN2023113937-FTAPPB-I100002 
Figure PCTCN2023113937-FTAPPB-I100003
Abstract
Description
ANTI-CARBONYLATION COMPOSITION AND USE THEREOFTECHNICAL FIELD
[0001] The present disclosure relates to an anti-carbonylation composition comprising at least one anti-carbonylation active, a method of reducing and / or inhibiting protein carbonylation, particularly a method of protecting the tissues (for example, keratin materials, especially keratin fiber (s) , such as skin etc. ) from carbonylation stimuli by using the anti-carbonylation composition, and use of selected hyperbranched polymer (s) as the anti-carbonylation active.BACKGROUND ART
[0002] The skin is the body's first barrier against external environmental stimuli. The important mechanism of environmental pollutants such as particulate matter, ultraviolet rays, ozone and the like invading the skin is to attack the unsaturated lipids in the surface layer of the skin through oxidative damage, destroy the outermost protective layer of the skin, and produce active carbonyl substances, such as malondialdehyde, 4-hydroxy nonenal, acrolein, etc. When the contents of these types of substances exceed the body's scavenging ability, carbonyl stimuli would occur, which induces the carbonylation modification of biological macromolecules such as proteins, resulting in structural changes and losing of functions.
[0003] During the protein carbonylation, the reactive aldehydes or ketones are introduced into proteins by oxidation. Protein carbonyls have been shown to be major products of protein oxidation, and may be formed via oxidative cleavage of proteins, direct oxidation of amino acid residues or covalent reaction with aldehydes derived from lipid peroxidation.
[0004] It is generally understood that protein carbonylation refers to the process in which the amino or imino groups in the side chain of amino acid residues are attacked by oxygen free radicals and finally converted into aldehyde groups and release NH4+ or R-NH3+, wherein the bond of the peptide is broken, and a carbonyl group is generated at the break, and the content of the carbonyl group is greatly increased after the amino acid of the protein side chain is attacked by hydroxyl free radicals and modified by oxidation.
[0005] Particularly, protein carbonylation occurs because of the direct metal-catalyzed oxidation of amino acid side chains (primary protein carbonylation) or the addition of reactive aldehydes to amino acid side chains (secondary protein carbonylation) . As such, reactive aldehydes of exogenous origin, such as acrolein, are well known to be derived from cigarette smoke.
[0006] It has been previously reported that primary protein carbonylation plays a role in the mechanism of reactive oxygen species (ROS) signaling. The reactive oxygen species (ROS) in the skin can change the proteins in the cell structure of the skin. If the reactive oxygen species (ROS) cannot be fully controlled by the skin antioxidant defense system, the protein in the skin will be carbonylated, resulting in skin damage.
[0007] It has been well documented that the production of carbonyl protein is a hallmark of carbonylation stress, e.g., as an extrinsic factor, such as that induced by ultraviolet radiation or an external application of oxidative chemicals, or as intrinsic factors, such as chemical attack by reactive carbonyls derived from the degradation of lipid peroxides.
[0008] Carbonylated proteins in the skin mainly exist in the epidermis and dermis, and the content of carbonylated proteins in the epidermis is higher than that in the dermis. This is because the epidermis of the skin is continuously exposed to the oxidative environment and the unsaturated lipid environment secreted by the sebaceous glands, creating favorable conditions for the continuous generation of reactive aldehyde compounds.
[0009] Furthermore, carbonyl stress causes skin damage, such as accelerated skin aging, or various pathological reactions of the skin. Protein carbonylation damages the skin's water-holding capacity, affects the skin's light transmittance, and changes the skin's optical properties etc. Specifically, the presence of carbonylated proteins is associated with changes in skin characteristics: such as mechanical properties; water- holding capacity, including decreased moisture content and increased epidermal water loss; dull skin; and decreased skin clarity. At the same time, increased levels of carbonylated proteins can lead to inflammatory skin diseases such as psoriasis and dermatitis.
[0010] Accordingly, there is a great need for anti-carbonylation agents capable of inhibiting or preventing protein carbonylation, as well as skin care compositions and methods comprising anti-carbonylation agents to improve skin appearance or improve at least one sign of skin aging (such as decreased water-holding capacity, dull skin, skin yellowness, decreased skin clarity, elasticity, contrast, etc. ) and reduces the occurrence of inflammatory skin diseases such as psoriasis and dermatitis.SUMMARY
[0011] The inventors have now discovered that the objects as described above can be achieved by the following embodiments.
[0012] One subject of the present disclosure is to provide an anti-carbonylation composition comprising at least one anti-carbonylation active, wherein the anti-carbonylation active comprises at least four units of in its structural formula, and wherein surface primary amino groups comprises more than about 8 wt. %of molecular weight of the anti-carbonylation active.
[0013] In one embodiment, the anti-carbonylation active is multi-branched.
[0014] In preferred embodiments, the anti-carbonylation active has a molecular weight of about 500 or more, preferably about 800 or more, more preferably about 1000 or more, most preferably about 1200 or more. In other preferred embodiments, the anti-carbonylation active has a molecular weight of about 120000 or less, preferably about 60000 or less, more preferably about 10000 or less, most preferably about 5000 or less. In still other embodiments, the anti-carbonylation active has a molecular weight of between 500 and 120000, preferably between 800 and 60000, more preferably between 1000 and 10000, and most preferably between 1200 and 5000.
[0015] In specific embodiments, the anti-carbonylation active has a molecular weight of about 500 or more, preferably about 800 or more, more preferably about 1000 or more, most preferably about 1200 or more, and about 120000 or less, preferably about 60000 or less, more preferably about 10000 or less, most preferably about 5000 or less; preferably the anti-carbonylation active has a molecular weight of between 500 and 120000, preferably between 800 and 60000, more preferably between 1000 and 1000, and most preferably between 1200 and 5000.
[0016] In one embodiment, the anti-carbonylation active has a structure of formula I,
[0017] wherein R1-R4 are each independently
[0018] R5 and R6 are each independently selected from the group consisting of H and
[0019] R7 and R8 are each independently selected from the group consisting of H and
[0020] R9 and R10 are each independently selected from the group consisting of H and
[0021] R11 and R12 are each independently selected from the group consisting of H and
[0022] R13 and R14 are each independently selected from the group consisting of H and
[0023] n is selected from the group consisting of 0, 1, 2, 3 and 4;
[0024] Ra and Rb are each independently selected from the group consisting of H, substituted or unsubstituted C1-C3 alkyl, wherein the substituted C1-C3 alkyl contains one or more C1-C3 alkyl substituents, one or more ether bonds, one or more amine groups, or a combination thereof.
[0025] In one preferred embodiment, R1-R4 are each independently
[0026] R5 and R6 are each independently selected from the group consisting of H and
[0027] R7 and R8 are each independently selected from the group consisting of H and
[0028] R9 and R10 are each independently selected from the group consisting of H and
[0029] n is selected from the group consisting of 0, 1 and 2;
[0030] Ra and Rb are H.
[0031] In a further preferred embodiment, the anti-carbonylation composition active may be selected from the group consisting of
[0032] and combinations thereof.
[0033] In one embodiment, the anti-carbonylation active is present in the composition in an amount of from about 0.0001%to about 10%by weight, preferably from about 0.001%to about 5%by weight, preferably from about 0.005%to about 2%by weight, relative to the total weight of the anti-carbonylation composition.
[0034] In another embodiment, the present composition further comprises a functional agent, which may be, such as, at least one active agent such as skin care agent (s) , selected from the group consisting of moisturising agents, such as protein hydrolysates, and polyols, such as glycerol, glycols, polyethylene glycols, and sugar derivatives; natural extracts; vitamins, such as vitamin A (retinol) , vitamin E (tocopherol) , vitamin C (ascorbic acid) , vitamin B5 (panthenol) , vitamin B3 (niacinamide) , the derivatives of these vitamins (in particular esters) and their mixtures; urea; caffeine; salicylic acid and its derivatives; alpha-hydroxy acids, such as lactic acid and glycolic acid, and their derivatives; retinoids, such as carotenoid and vitamin A derivatives; sunscreen; essential oils of mint, aloe vera or ginseng and their mixtures.
[0035] Another subject of the present disclosure is to provide a process of preparing the anti-carbonylation composition, comprising the following steps:
[0036] - (1) optionally, providing a formula base, which is then cooled, for example, to room temperature,
[0037] - (2) dispersing the at least one anti-carbonylation active in a cosmetically acceptable vehicle, such as water,
[0038] and
[0039] - (3) mixing 1) formula base, and 2) anti-carbonylation active solution at room temperature.
[0040] Another subject of the present disclosure is to provide a cosmetic product, comprising the present anti-carbonylation composition.
[0041] Another subject of the present disclosure is to provide a non-therapeutic method for countering denaturation of keratin materials, preferably skin, more preferably facial skin, by topically applying an effective amount of the present anti-carbonylation composition or the present cosmetic product to the keratin materials.
[0042] Another subject of the present disclosure is to provide a non-therapeutic method for reducing and / or inhibiting protein carbonylation on keratin materials, preferably skin, more preferably facial skin, by topically applying an effective amount of the present anti-carbonylation composition or the present cosmetic product to the keratin materials.
[0043] Another subject of the present disclosure is to provide a non-therapeutic method for protecting keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli, by topically applying an effective amount of the present anti-carbonylation composition or the present cosmetic product to the keratin materials.
[0044] Another subject of the present disclosure relates to a non-therapeutic use of the present anti-carbonylation composition or the present cosmetic product for countering denaturation of keratin materials, preferably skin, more preferably facial skin.
[0045] Another subject of the present disclosure relates to a non-therapeutic use of the present anti-carbonylation composition or the present cosmetic product for reducing and / or inhibiting protein carbonylation on keratin materials, preferably skin, more preferably facial skin.
[0046] Another subject of the present disclosure relates to a non-therapeutic use of the present anti-carbonylation composition or the present cosmetic product for protecting keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli.
[0047] Another subject of the present disclosure is to provide the present anti-carbonylation composition or the present cosmetic product for use in countering denaturation of keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli.
[0048] Another subject of the present disclosure is to provide the present anti-carbonylation composition or the present cosmetic product for use in reducing and / or inhibiting protein carbonylation on keratin materials, preferably skin, more preferably facial skin.
[0049] Another subject of the present disclosure is to provide the present anti-carbonylation composition or the present cosmetic product for use in protecting keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli. Other advantages of the present disclosure will emerge more clearly on reading the description and the examples that follow.Detailed Description
[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art the present disclosure belongs to. When the definition of a term in the present description conflicts with the meaning as commonly understood by those skilled in the art the present disclosure belongs to, the definition described herein shall apply.
[0051] Unless otherwise indicated, all numbers expressing quantities of ingredients, properties such as molecular weight, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about. " When the term "about" is used herein in connection with a numerical value, the intent is to include not only that numerical value but also values within in a tolerance or range of ±5%of the precise numerical value associated with the word "about" . Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are intended to be reported precisely in view of methods of measurement. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
[0052] Further, the ranges stated in this disclosure and the claims are intended to include the entire range specifically and not just the endpoint (s) . For example, a range stated to be 0 to 10 is intended to disclose all whole numbers between 0 and 10 such as, for example 1, 2, 3, 4 and any sub-ranges formed by any two values thereof, etc., all fractional numbers between 0 and 10, for example 1.5, 2.3, 4.57, 6.1113 and any sub-ranges formed by any two values thereof, etc., and the endpoints 0 and 10.
[0053] Throughout the description, including the claims, the term "comprising a" should be understood as being synonymous with "comprising at least one" , unless otherwise mentioned. As used herein, the term "comprising" is to be interpreted as encompassing all specifically mentioned features as well optional, additional, unspecified ones. As used herein, the use of the term "comprising" also discloses the embodiment wherein no features other than the specifically mentioned features are present (i.e. "consisting of" ) . Moreover, the expression "at least one" used in the present description is equivalent to the expression "one or more" .
[0054] By "topical application" , it meant that the composition is applied or spread onto the surface of the keratin materials, such as at least one zone of the skin.
[0055] As used herein, "anti-carbonylation" means reducing and / or inhibiting protein carbonylation, particularly protecting the tissues (for example, keratin materials, especially keratin fiber (s) , such as skin etc. ) from carbonylation stimuli.
[0056] As used herein, the term "and / or" , when used in a list of two or more items, means that any one of the listed items can be employed by itself, or any combination of two or more of the listed items can be employed. For example, if a composition is described as containing components A, B, and / or C, the composition can contain A alone; B alone; C alone; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination.
[0057] All parts or percentages in the present disclosure refer to weight parts or weight percentages and are based on the total weight of the composition, unless otherwise specified.
[0058] Polyamidoamine (PAMAM)
[0059] Polyamidoamine (PAMAM) is a type of dendrimer, which is a highly branched, three-dimensional macromolecule with a well-defined structure and a multifunctional terminal surface. This nanoscale polymer consists of an ethylenediamine core, a repetitive branching amidoamine internal structure and a primary amine terminal surface.
[0060] PAMAM structures
[0061] It has been unexpectedly discovered that the present anti-carbonylation composition (or agent) comprising at least one PAMAM polymer (s) as an anti-carbonylation active can achieve improved anti-carbonylation efficacy. PAMAM dendrimers, with their numerous amino groups, can act as sacrificial agents to protect the skin from carbonylation damage. In addition, it has also been found that PAMAM has an anti-glycation effect. Thus, it can be used as an anti-glycation active to reduce or slow down the generation of advanced glycation end products (AGEs) , which are a group of complex compounds generated by nonenzymatic interactions between proteins and reducing sugars or lipids.
[0062] Without wishing to be bound by any particular theory, it is proposed herein that, when applied topically, PAMAM dendrimers can scavenge and neutralize reactive carbonyl species, preventing them from reacting with biomolecules in the skin. The amino groups in PAMAM dendrimers are capable of forming stable adducts with carbonyl compounds, effectively trapping and removing them from the skin environment. Compared with small molecules with amino groups such as lysine, it shows much stronger anti-carbonylation efficacy due to the "multi-valent effect" .
[0063] Based on the above findings, the present disclosure is concerned with an anti-carbonylation composition comprising at least one polyamidoamine (PAMAM) polymer (s) as an anti-carbonylation active. Preferably, the anti-carbonylation active is selected from G0 PAMAM, G1 PAMAM, G2 PAMAM, G3 PAMAM, G4 PAMAM, G5 PAMAM and mixtures thereof. More preferably, the at least one anti-carbonylation active is selected from G0 PAMAM, G1 PAMAM, G2 PAMAM, G3 PAMAM and mixtures thereof. The at least one anti-carbonylation active is most preferably G0 PAMAM, G1 PAMAM, or mixtures thereof.
[0064] Typically, the PAMAM polymer (s) is present in the anti-carbonylation composition at the following concentrations: about 0.0001%to about 10%by weight, preferably from about 0.001%to about 5%by weight, more preferably from about 0.005%to about 2%by weight, relative to the total weight of the composition; for example, about 0.005%by weight, about 0.01%by weight, about 0.02%by weight, about 0.05%by weight, about 0.1%by weight, about 0.2%by weight, about 0.5%by weight, about 1%by weight, relative to the total weight of the composition.
[0065] In another embodiment, the present disclosure is concerned with a process of preparing the present anti-carbonylation composition, comprising the following steps:
[0066] - (1) optionally, providing a formula base, which is then cooled, for example, to room temperature,
[0067] - (2) dispersing at least one PAMAM polymer (s) in a cosmetically acceptable vehicle, such as water,
[0068] - (3) mixing 1) formula base, and 2) PAMAM polymer solution at room temperature.
[0069] The vehicle useful in the present disclosure is pharmaceutically or cosmetically acceptable. Such vehicles include, but are not limited to, one or more lower fatty alcohols, fatty ethers, fatty esters, polyols, glycols, water, or any combinations thereof.
[0070] In a specific embodiment, the vehicles used in present disclosure include purified water, polyacrylate crosspolymer-6, caprylyl glycol, phenoxyethanol, hexylene glycol, caprylyl glycol / phenoxyethanol / hexylene glycol or any combinations thereof.
[0071] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active or as an effective ingredient in an anti-carbonylation reaction.
[0072] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active or as an effective ingredient in countering denaturation of keratin materials, preferably skin, more preferably facial skin.
[0073] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active or as an effective ingredient in reducing and / or inhibiting protein carbonylation on keratin materials, preferably skin, more preferably facial skin.
[0074] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active or as an effective ingredient in protecting keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli.
[0075] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active or as an effective ingredient for preparing a cosmetic product of in countering denaturation of keratin materials, preferably skin, more preferably facial skin. In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active for preparing a cosmetic product of reducing and / or inhibiting protein carbonylation on keratin materials, preferably skin, more preferably facial skin.
[0076] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-carbonylation active for preparing a cosmetic product of protecting keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli.
[0077] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-carbonylation active or as an effective ingredient in an anti-carbonylation reaction.
[0078] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-carbonylation active or as an effective ingredient in countering denaturation of keratin materials, preferably skin, more preferably facial skin.
[0079] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-carbonylation active reducing and / or inhibiting protein carbonylation on keratin materials, preferably skin, more preferably facial skin.
[0080] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-carbonylation active for protecting keratin materials, preferably skin, more preferably facial skin, from carbonylation stimuli.
[0081] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-glycation active or as an effective ingredient in an anti-glycation reaction.
[0082] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-glycation active or as an effective ingredient in reducing or slowing down the generation of AGEs.
[0083] In another embodiment, the present disclosure is concerned with use of PAMAM polymer (s) as an anti-glycation active or as an effective ingredient in protecting keratin materials, preferably skin, more preferably facial skin, from the effects of AGEs.
[0084] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-glycation active or as an effective ingredient in an anti-glycation reaction.
[0085] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-glycation active or as an effective ingredient in reducing or slowing down the generation of AGEs.
[0086] In another embodiment, the present disclosure is PAMAM polymer (s) for use as an anti-glycation active or as an effective ingredient in protecting keratin materials, preferably skin, more preferably facial skin, from the effects of AGEs.
[0087] Active agents
[0088] According to an embodiment, the anti-carbonylation composition of the present disclosure may comprise at least one functional agent, such as, at least one active agent, for example, selected from the group consisting of: desquamating or moisturizing agents; depigmenting or anti-depigmenting agents; anti-glycation agents; anti-NO agents; agents for stimulating the synthesis of dermal or epidermal macromolecules and / or for preventing their degradation; agents for stimulating fibroblast or keratinocyte proliferation and / or keratinocyte differentiation; muscle relaxants or dermo-decontracting agents; free-radical scavengers or anti-pollution agents; tensioning agents; agents acting on the capillary circulation; certainly, the following particularly active agents, and mixtures thereof.
[0089] Amongst all of the active agents that can be used in the present disclosure, particular mention can be made of: α-or β-hydroxy acids such as lactic acid, glycolic acid, citric acid, 5-octanoylsalicyclic acid, α-hydroxydecanoic acid, α-hydroxylauric, tartaric acid, glucuronic acid, galacturonic acid, acrylic acid, α-hydroxybutyric acid, α-hydroxyisobutyric acid, malic acid, mandelic acid, phosphoric acid, pyruvic acid, lactobionic acid, and salicylic acid.
[0090] It is also possible to use anti-acne agents, such as salicylic acid or benzoyl peroxide, octopirox, dextrorotary and levorotary sulfur-containing amino acids, their salts, and their N-acetyl derivatives such as N-acetyl cysteine, or agents seeking to prevent aging of the skin and / or to improve its state, for example the above-mentioned α-and β-hydroxy acids, retinoids such as retinoic acid, retinol, and its esters, such as, for example, retinyl propionate, and retinyl acetate, or retinyl palmitate, niacinamide, allantoin, extracts of aloe, azelaic acid, bisabolol, phytic acid, collagen, or agents stimulating the formation of collagen, vitamins such as vitamin C or derivatives thereof, such as ascorbyl glucoside, vitamin E or derivatives thereof, vitamin A or derivatives thereof, vitamin F or derivatives thereof, dextrorotary and levorotary sulfur-containing amino acids and derivatives thereof as mentioned above, elastin, N-acetyl D-glucosamine, luteolin, or antioxidants such as green tea or active fractions thereof, glycerin, laponite, caffeine, essential aromatic oils, coloring agents, free-radical scavengers, moisturizers, depigmenting agents, agents for improving the color of the skin such as artificial-tanning agents of the dihydroxyacetone or tyrosin ester type, liporegulators, softeners, anti-wrinkle agents, keratolytic agents, fresheners, deodorants, anesthetics, nourishing agents, and mixtures thereof. It is also possible to use bleaching agents such as kojic acid, ascorbyl phosphates, ascorbyl glucosides, ascorbic acid, and mixtures thereof.
[0091] It is also possible to use active agents for improving the condition of the skin in the case of mask, such as moisturizers or agents serving to improve the natural lipid barrier, such as ceramides, cholesterol sulfates, and / or fatty acids, and mixtures thereof. It is also possible to use enzymes that have activity on the skin, such as proteases, lipases, cerebrosidases, and / or melanases, and mixtures thereof.
[0092] As other examples of active agents that can be suitable for implementing the present disclosure there are agents for drugs, peptides, proteins, detectable labels, contrast reagents, pain-killing, anesthetics, antibacterial agents, anti-yeast agents, antifungal agents, antiviral agents, anti-dermititis agents, anti-pruritic agents, anti-emetics, vascular protectors, agents against motion sickness, anti-irritants, anti-inflammatory agents, immunomodulators, anti-hyperkeratolytic agents, agents for treating dry skin, antiperspirants, anti-psoriatic agents, antidandruff agents, anti-aging agents, anti-asthmatic agents and bronchodilators, sunscreen agents, antihistamines, healing agents, corticosteroids, tanning agents, and mixtures thereof.
[0093] The content of the at least one active agent in the composition may be adjusted as a function of the intended purpose of the composition.
[0094] Adjuvants
[0095] In a known manner, the composition of the present disclosure may also contain adjuvants that are common in cosmetics and / or dermatology, such as preserving agents, antioxidants, pH modifiers (acidic or basic) , fragrances, fillers, bactericides, odour absorbers, colorants (pigments and dyes) , emulsifiers, and also lipid vesicles.
[0096] Needless to say, a person skilled in the art will take care to select this or these optional additional compound (s) , and / or the amount thereof, such that the benefits of the composition according to the present disclosure are not, or are not substantially, adversely affected by the envisaged addition.
[0097] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the present disclosure are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contain certain errors necessarily resulting from the standard deviation found in their respective measurements. The following examples are intended to illustrate the present disclosure without limiting the scope as a result.
[0098] EXAMPLES
[0099] The ingredient amounts / concentrations in the compositions / formulas described below are expressed in weight part.
[0100] I. Evaluation of the present composition
[0101] 1.In vitro anti-carbonylation efficacy test
[0102] This assay provides an in vitro method to determine how an anti-carbonylation agent / composition affects the extent of protein carbonylation. With deionized water, the anti-carbonylation agent / composition to be tested was made into a 1%solution, Bovine Serum Albumin (BSA) was made into a 10 mg / mL solution, and Acrolein was made into a 10 mM solution. Then, in a 1.5 mL centrifuge tube, according to the content in Table 1, BSA (10 mg / mL) , anti-carbonylation agent / composition (1%) , Acrolein (10 mM) and Phosphate buffer solution (PBS) were added to the centrifuge tube. The sample containing only BSA and PBS served as a baseline, and the sample containing BSA, Acrolein and PBS served as a blank. The final liquid volume in each centrifuge tube was 1.0 mL. Each group contained three replicate samples, and all samples were placed at 37 ℃ overnight.
[0103] Table 1 1. PAMAM are from Weihai CY Dendrimer Technology Co., Ltd. 2. L-lysine is from Macklin. 3. Alistin is from Exsymol.
[0104] The protein carbonyl content in the above samples was detected by using the Protein Carbonyl Assay Kit of Nanjing Jiancheng Bioengineering Institute. The detection methods are as follows: take 0.1 mL of sample into the assay tube, then add 0.4 mL of reagent 3 in the kit, vortex to mix for 1 min, and react at 37℃ for 30 min in the dark. Add 0.5 mL of reagent 5 in the kit, vortex and mix for 1 min, centrifuge at 12,000 r / min for 10 min at 4℃, discard the supernatant, and leave the pellet. Add 1.0 mL of anhydrous ethanol and ethyl acetate (1: 1) mixed solution, vortex to mix for 1 min, centrifuge at 12,000 r / min for 10 min at 4 ℃, discard the supernatant, leave the precipitate, and repeat the above steps four times. Add 1.25 mL of reagent VI in the kit, mix well, place it in 37℃ for 15 min, vortex to mix, dissolve all the precipitates, and centrifuge at 12,000 r / min for 15 minutes. Take the supernatant in a quartz cuvette with a light diameter of 0.5 cm, adjust the zero with reagent six, and measure the absorbance value of each tube at 370 nm (ultraviolet) . According to the formula, we can get the protein carbonyl content.
[0105] The protein content of the samples was determined using Thermos’s Micro BCATM Protein Assay Kit. First, prepare Diluted Albumin (BSA) Standards (Working Range = 20-750 μg / mL) . Mix BCA Reagent A with Reagent B (Reagent A: Reagent B=50: 1) to prepare working solution. Take 25 μL each of the protein standard at different dilution concentration and the protein sample, add them to the microplate. Add 200 μL of working solution to each well and mix well by shaking on a shaker for 30 s. The microplate was sealed and incubated at 37 ℃ for 30 min. Cool the microplate to room temperature and measure the absorbance of the sample at a wavelength of 562 nm. The corrected absorbance value is the absorbance value of the blank sample subtracted from the readings of each standard and sample. The protein concentration was read against a standard curve prepared with known amounts of BSA. Referring to the standard curve, according to the corrected absorbance value of each protein sample, read the protein concentration of each sample within the linear range of the standard curve. Calculate the amount of protein in the original sample based on the sample volume and dilution.
[0106] 2. Anti-carbonylation efficacy of PAMAM
[0107] The anti-carbonylation capability of each anti-carbonylation agents / composition can be obtained by dividing the carbonylation degree of the sample by the BSA protein content. The results are shown in the Table 2 and Table 3 below.
[0108] Table 2
[0109] Table 3
[0110] 3. Cell toxicity of PAMAM
[0111] Normal Human Epidermal Keratinocytes (NHEK, FC-0007) purchased from Lifeline Cell Technology were incubated at 37℃, 95%humidity and 5%CO2 in keratinocyte cell culture medium (DermaLife K Keratinocyte Medium Complete Kit, LL-0007, Lifeline cell technology) supplemented with growth factors and 1%Penicillin / Streptomycin (Thermo Fischer, Waltham, MA, USA) . On day one, NHEKs were seeded with culture medium (DermaLife K Keratinocyte Medium Complete Kit) in a 96-well plate at 3,000 cells / well. After 24h adherence, cells were treated with different types and concentrations of PAMAM for 48 hrs. Then cells were washed with Dulbecco’s phosphate buffered saline (DPBS) twice, and then incubated with MTT (3- (4, 5-Dimethylthiazol-2-yl) -2, 5-diphenyltetrazolium bromide, Sigma) for 4h. Then DMSO was added to dissolve the crystal, followed by measuring the absorptance with a Perkin Elmer plate reader (VICTOR Nivo) , at 570nm. The results are shown in the Table 4 below.
[0112] Table 4
[0113] II. Formulation examples
[0114] The composition of the invention containing PAMAM is prepared by thoroughly mixing these ingredients as follows.
[0115] Table 5
[0116] III. Sensory evaluation of anti-carbonylation compositions
[0117] The sensory properties of compositions 1 to 4 were evaluated after applying them to the skin, and are summarized in the table below:
[0118] Table 6
[0119] The cosmetic properties of compositions 1 to 4 were good, especially in terms of spreading, softness and non-stickiness.
[0120] Every document cited herein, including any cross referenced or related patent or application, is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any invention disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
Claims
1.An anti-carbonylation composition comprising at least one anti-carbonylation active, wherein the anti-carbonylation active comprises at least four units of in its structural formula, and wherein surface primary amino groups comprises more than about 8 wt. %of molecular weight of the anti-carbonylation active.2.The anti-carbonylation composition according to claim 1, wherein the anti-carbonylation active is multi-branched.3.The anti-carbonylation composition according to claim 1 or 2, wherein the anti-carbonylation active has a molecular weight of about 500 or more, preferably about 800 or more, more preferably about 1000 or more, most preferably about 1200 or more; and / orthe anti-carbonylation active has a molecular weight of about 120000 or less, preferably about 60000 or less, more preferably about 10000 or less, most preferably about 5000 or less; and / orthe anti-carbonylation active has a molecular weight of between 500 and 120000, preferably between 800 and 60000, more preferably between 1000 and 10000, and most preferably between 1200 and 5000.4.The anti-carbonylation composition according to any one of the preceding claims, wherein the anti-carbonylation active has a structure of formula I, wherein R1-R4 are each independentlyR5 and R6 are each independently selected from the group consisting of H andR7 and R8 are each independently selected from the group consisting of H andR9 and R10 are each independently selected from the group consisting of H andR11 and R12 are each independently selected from the group consisting of H andR13 and R14 are each independently selected from the group consisting of H andn is selected from the group consisting of 0, 1, 2, 3 and 4;Ra and Rb are each independently selected from the group consisting of H, substituted or unsubstituted C1-C3 alkyl, wherein the substituted C1-C3 alkyl contains one or more C1-C3 alkyl substituents, one or more ether bonds, one or more amine groups, or a combination thereof.5.The anti-carbonylation composition according to claim 4, whereinR1-R4 are each independentlyR5 and R6 are each independently selected from the group consisting of H andR7 and R8 are each independently selected from the group consisting of H andR9 and R10 are each independently selected from the group consisting of H andn is selected from the group consisting of 0, 1 and 2;Ra and Rb are H.6.The anti-carbonylation composition according to claim 5, wherein the anti-carbonylation composition active is selected from the group consisting of and combinations thereof.7.The anti-carbonylation composition according to any one of the preceding claims, wherein the anti-carbonylation active is present in the composition in an amount of from about 0.0001%to about 10%by weight, preferably from about 0.001%to about 5%by weight, preferably from about 0.005%to about 2%by weight, relative to the total weight of the anti-carbonylation composition.8.The anti-carbonylation composition according to any one of the preceding claims, wherein the composition further comprises at least one of functional agent, sugar derivatives, natural extracts, vitamins, urea, caffeine, salicylic acid and its derivatives, alpha-hydorxy acids and their derivatives, retinoids, sunscreen, essential oils of mint, aloe vera or ginseng, and mixtures thereof.9.Cosmetic product, comprising the anti-carbonylation composition according to any one of the preceding claims 1 to 8.10.Process of preparing the anti-carbonylation composition according to any one of the preceding claims 1 to 8 or the cosmetic product according to claim 9, comprising the following steps:- (1) optionally, providing a formula base, which is then cooled,- (2) dispersing the at least one anti-carbonylation active in a cosmetically acceptable vehicle,- (3) mixing 1) formula base, and 2) anti-carbonylation active solution at room temperature;preferably, the formula base is cooled to room temperature; and / orpreferably, the cosmetically acceptable vehicle is water.11.A non-therapeutic method for reducing and / or inhibiting protein carbonylation on keratin materials, by topically applying the anti-carbonylation composition according to any one of the preceding claims 1 to 8 or the cosmetic product according to claim 9 to the keratin materials;preferably, the keratin material is skin.12.A non-therapeutic method for protecting keratin materials, from carbonylation stimuli, by topically applying the anti-carbonylation composition according to any one of the preceding claims 1 to 8 or the cosmetic product according to claim 9 to the keratin materials;preferably, the keratin material is skin.13.A non-therapeutic use of the anti-carbonylation composition according to any one of the preceding claims 1 to 8 or the cosmetic product according to claim 9 for reducing and / or inhibiting protein carbonylation on keratin materials;preferably, the keratin material is skin.14.A non-therapeutic use of the anti-carbonylation composition according to any one of the preceding claims 1 to 8 or the cosmetic product according to claim 9 for protecting keratin materials, from carbonylation stimuli;preferably the keratin material is skin.