350 results about "Keratinocyte" patented technology

The invention belongs to the technical field of protein engineering and biology, and discloses a recombinant III-type humanized collagen, a coding gene thereof, a protein preparation, a preparation method of the protein preparation, application of the protein preparation and a skin care product. The amino acid sequence of the recombinant III type humanized collagen is as shown in SEQ ID NO. 1. According to the recombinant III type humanized collagen, the transdermal absorption efficiency is greatly improved, and meanwhile, the proliferation and migration capabilities of keratinocytes are also remarkably improved. The collagen is widely applied to the fields of medical cosmetic plastic surgery, cosmetics and the like, and has a good application prospect.

Provided are a whitening and freckle-removing composition, a gel, a preparation method therefor, and a use thereof, relating to the technical field of skin-care products. The whitening and freckle-removing composition comprises tranexamic acid, nicotinamide, 4-butylresorcinol, licorice extract, 3-o-ethyl ascorbic acid, and glutathione. For the whitening composition, by inhibiting the activity of tyrosinase, blocking the transfer of melanin from melanocytes to keratinocytes, and inhibiting the formation and accumulation of melanin by means of multiple mechanisms including oxidation resistance, and by means of the synergistic action of all components, cosmetic benefits of whitening and freckle-removing are achieved. The whitening and freckle-removing gel has a simple preparation method, has a mild and non-sensitizing formula, is safe and non-irritating, and is suitable for large-scale production and application.

The invention belongs to the technical field of biological medicine, and particularly relates to application of polypeptide in treatment of psoriasis. The amino acid sequence of the polypeptide provided by the invention is SEQ ID NO.1, so that the spleen-body ratio of a psoriasis mouse can be effectively reduced, and the inflammation level in the body can be reduced; the epidermal thickness of psoriasis mice and inflammatory factors in skin lesion tissues can be remarkably reduced, keratinocyte proliferation is reduced, and inflammatory factors released by inflammatory cells recruited to skin lesion positions are reduced. The polypeptide provided by the invention shows certain advantages in the aspects of relieving inflammatory response, promoting tissue repair and the like when being used for treating psoriasis. The invention provides a new method and means for treating psoriasis, and promotes the progress and development of medicine.

The invention relates to application of Bergapten or an isomer thereof in preparation of a product for improving skin aging and / or promoting skin repair. A large number of experiments prove that Bergapten or an isomer thereof can improve skin aging and / or promote skin repair and has good safety, and the specific expression is as follows: Bergapten can activate expression of SIRT1 protein and is superior to that of an existing activator resveratrol; the Bergapten can obviously inhibit the reduction of the content of various collagens in skin keratinocytes caused by UV light aging stimulation; the Bergapten can be used for promoting the healing capability of cell scratches. In conclusion, the Bergapten or the isomer thereof has great clinical application prospect and value in preparation of products for improving skin aging and / or promoting skin repair.

The invention discloses composite gel with ROS and pH dual responsiveness and a preparation method and application thereof.The preparation method comprises the steps that gold nanoparticles are prepared, gold nanostars GNS grow, a surfactant and biguanide drugs are added to obtain drug-loaded gold nanostars GM, a metal organic framework is introduced to obtain drug-loaded nanoparticles GMZ of a core-shell structure, and the composite gel is prepared. And reacting with a TSPBA solution, an astaxanthin solution and a polyvinyl alcohol PVA solution for crosslinking to obtain the ROS and pH dual responsive composite gel. According to the invention, the gold nanostars are used as a photosensitizer to construct the multifunctional composite gel, and the metal organic framework structure degrades under a slightly acidic condition of a psoriasis epithelium microenvironment to release released zinc ions, so that the gel is endowed with various treatment effects, excellent photo-thermal treatment performance and controlled release performance of the zinc ions and drugs. The gel has ROS responsiveness, can remove excessive ROS in a psoriasis microenvironment, and realizes the treatment of oxidation resistance, inflammation resistance and keratinocyte proliferation inhibition of psoriasis by combining with a nano drug delivery system.

The invention relates to an application of D-camphor and cymenin in preparation of an anti-inflammatory soothing preparation for sensitive skin. The invention discloses an application of D-camphor and cymenin as only two effective components in preparation of an anti-inflammatory soothing preparation for sensitive skin. The invention further discloses an anti-inflammatory soothing preparation for sensitive skin, only two effective components of the anti-inflammatory soothing preparation for sensitive skin are D-camphor and cystin, and the anti-inflammatory soothing preparation for sensitive skin can reduce the reaction of IL-6, IL-8 and NO related microinflammation in a keratinocyte inflammation model. The invention has the following beneficial effects: 1, in a high proportion window (5-10: 1) of D-camphor and polycymenin, the inhibition of the compound system of D-camphor and polycymenin on IL-6, IL-8 and NO is superior to that of any monomer; 2, stable dispersion and good use experience can be realized through the micro-emulsion type emulsifying essence or the face cream carrier, and meanwhile, the face cream still has feasibility under the conditions of no essence and no conventional preservative.

The invention discloses a composition with sensitive skin repairing and anti-aging functions as well as an emulsion and application of the composition, and belongs to the technical field of cosmetics. The composition specifically comprises a pseudoalteromonas fermentation product extract, collagen, palmitoyl tripeptide-5, acetylchitosamine, sodium hyaluronate, silanetriol, caffeine and acetyl hexapeptide-8, and can promote the generation of laminin-5 and integrin beta1, promote the vitality of keratinocytes and fibroblasts, inhibit the growth of the keratinocytes and the fibroblasts, inhibit the growth of the keratinocytes and the fibroblasts, inhibit the growth of the keratinocytes and the fibroblasts, and promote the growth of the keratinocytes and the fibroblasts. The generation of inflammatory factors (IL-6) is inhibited; the generation of collagen IV and collagen VII is promoted; the invention further provides an emulsion prepared from the composition, and the optimal formula of the emulsion is obtained through optimization. The active composition disclosed by the invention has a wide application prospect in the field of cosmetics, and particularly has important significance in sensitive skin repair and anti-aging directions.

The invention relates to the technical field of medical gel, and particularly discloses a sustained-release gel preparation for endometrial repair and a preparation method of the sustained-release gel preparation. Keratinocyte factor sustained-release microspheres containing keratinocyte factor-glucan particles and lactic acid-glycolic acid copolymer shells are constructed around keratinocyte factors, and the keratinocyte factor sustained-release microspheres are loaded by hyaluronic acid hydrogel containing polylysine, collagen and silk fibroin to form the sustained-release gel preparation for endometrial repair. The sustained-release gel preparation has the effect of promoting proliferation of human endometrial cells, can repair endometrial injury, promote injury healing and prevent uterine cavity adhesion, and has important significance in treating endometrial injury and improving physical and psychological health of women.

The present invention belongs to the technical field of cosmetics, and discloses a composition with moisturizing and repairing effects, a preparation method thereof and an application thereof. The composition of the present invention comprises a xylitol moisturizer, 4D hyaluronic acid, a peach resin extract and hydroxyphenyl propionamide benzoic acid, the xylitol moisturizer comprises at least one of xylitol, dehydrated xylitol and xylitol glucoside, and the 4D hyaluronic acid comprises at least one of sodium hyaluronate, hydrolyzed sodium hyaluronate, acetylated sodium hyaluronate and sodium hyaluronate cross-linked polymer. The present invention rationally compounds the xylitol moisturizer, 4D hyaluronic acid, peach resin extract and hydroxyphenyl propionamide benzoic acid, can locate the skin at different layers, effectively increase the moisture content of the epidermis and dermis, and maintain the hydration state of the skin, while repairing damaged keratinocytes, enhancing the barrier function of the skin, and reducing the loss of water, thereby having good moisturizing and repairing effects.

The invention relates to the field of cosmetics, in particular to dendrobium devonianum stem extract as well as a preparation method and application thereof. The invention provides a dendrobium devonianum stem extract. The mass ratio of glucose to mannose in the dendrobium devonianum stem extract is 3: 7. The invention provides the dendrobium devonianum stem extract with tightening and moisturizing functions, and the extract can effectively inhibit ROS secreted by UVB-induced in-vitro keratinocytes at a lower concentration, and has a certain tightening effect; the AQP3 level in keratinocytes is improved, the AQP3 gene expression is up-regulated, and a certain moisturizing effect is achieved; the dendrobium devonianum stem extract is used for a formula human body efficacy test, and it is proved that 0.1% of the dendrobium devonianum stem extract has certain tightening and moisturizing effects.

The invention discloses a hydrogel dressing for treating atopic dermatitis and a preparation method and application thereof, and belongs to the technical field of skin medical materials. The dressing is prepared by taking a glycerol / water / ethanol ternary mixed solvent as a dissolving system, dissolving polyvinyl alcohol, tannic acid and aluminum trichloride to construct a polymer skeleton matrix, and then adding traditional Chinese medicine active ingredients. The preparation does not need complex temperature control curing, the ternary solvent can realize uniform dissolution and stable dispersion of the active ingredients, the effective ingredients are prevented from being damaged by high temperature, the encapsulation efficiency of the traditional Chinese medicine extract is more than 90%, and the medicine can be slowly released for 72 hours. The dressing has a multi-target anti-inflammatory effect, can reduce the level of TNF-alpha at a skin lesion and promote proliferation of keratinocytes, is excellent in tensile and torsional stability, and can be attached to the skin for a long time in a dynamic environment. The preparation method is simple in process, controllable in raw material cost, high in production efficiency, suitable for large-scale production, good in dressing biocompatibility, high in safety, suitable for treatment of atopic dermatitis of different severity degrees and large in clinical transformation potential.

The invention discloses a lactobacillus mucus CCFM1401 for repairing a skin barrier based on multiple target spots and a metagen of the lactobacillus mucus CCFM1401, and belongs to the technical field of microorganisms and medicines. The thallus lysate of the fermented lactobacillus mucus CCFM1401, provided by the invention, can be used for improving the cell viability of damaged keratinocytes and the expression of FLG, LOR, IVL, ZO-1, Occludin and CLDN gene levels in the aspect of external application; and viable bacteria and metabiotics (including thallus lysate and fermentation supernatant) of the fermented lactobacillus mucus CCFM1401 are orally taken, so that TEWL can be reduced, the water content of cuticle can be up-regulated, inflammatory reactions (such as skin histamine and serum IgE) can be reduced, and the skin barrier function and expression of structural protein can be up-regulated. Therefore, the fermented lactobacillus mucilaginosus has a huge application prospect in preparation of external or oral medicines for repairing the skin barrier and preparation of food, health care products or cosmetics.

The invention provides application of epiphyllum callus extract in preparation of cosmetics, and belongs to the technical field of new biological materials. Compared with a common epiphyllum extract, the epiphyllum callus extract provided by the invention is rich in high-content active ingredients, such as kaempferol, general flavone, total polyphenol, total protein and total sugar; the antioxidant skincare effect is achieved, and the removal efficiency of cells on DPPH free radicals can be improved. The skin care effect of promoting ATP synthesis is achieved, ATP synthesis can be remarkably promoted, and energy metabolism of damaged mitochondria is improved. Effective components of epiphyllum calluses are extracted, the effect of the epiphyllum calluses on human immortal keratinocytes is evaluated through cell experiments, it is proved that the epiphyllum calluses have excellent effects of resisting oxidation, resisting inflammation and repairing the keratinocytes, and the epiphyllum calluses are suitable for being used as raw materials to be applied to the cosmetic industry.

The invention discloses a small molecule polypeptide for treating psoriasis and application of a pharmaceutical composition of the small molecule polypeptide. According to the present invention, the small molecule polypeptide S1 capable of stably binding to the cell receptor in the psoriasis skin is screened from the peptide library, the small molecule polypeptide S1 is the cyclic peptide composed of CNAGQRSEC, and the small molecule polypeptide can inhibit the proliferation of human keratinocytes. According to the invention, medically acceptable auxiliary materials (such as a transdermal absorbent, a fat-soluble matrix, an emulsifier, a humectant, a pH regulator and an antioxidant) are further added on the basis of the small molecule polypeptide S1 to prepare the medicine cream, so that the stability and transdermal capacity of the medicine can be remarkably improved, and effective treatment of psoriasis is realized.

The invention belongs to the technical field of biological medicines, and relates to an application of beta-guanidinopropionic acid (3-Guanidinopropionic acid, beta-GPA) in preparation of a medicine for treating chronic inflammatory dermatosis. The invention discovers that the creatine transporter SLC6A8 is remarkably and highly expressed in skin lesion tissues of psoriasis for the first time, and the protein is strongly associated with occurrence and development of chronic inflammatory skin diseases such as psoriasis. The SLC6A8 transporter inhibitor beta-guanidino propionic acid can obviously inhibit the expression level of keratinocyte inflammatory factors, and meanwhile, the imiquimod-induced psoriasis model mouse skin lesion symptom is reversed, so that the beta-guanidino propionic acid has the effect of resisting psoriasis. The invention can provide new therapeutic targets and new drug choices for psoriasis and other chronic inflammatory skin diseases.

The invention discloses a pharmaceutical composition, which comprises chlorogenic acid, ferulic acid and a zeolite imidazole framework material, the mass ratio of chlorogenic acid to ferulic acid is 4: 1-1: 4, and the zeolite imidazole framework material is a Zn-based zeolite imidazole framework material. In the composition, the compatibility of chlorogenic acid and ferulic acid can synergistically regulate the proliferation, migration and apoptosis of keratinocytes, and restore the physiological function imbalance of human skin keratinocytes caused by EGFRIs. The ZIF can efficiently carry chlorogenic acid and ferulic acid together, the nanoscale particle size of the ZIF is beneficial to permeation of the medicine into the skin, and hydroxyl on the surface of the ZIF and ceramide in the skin are subjected to hydrogen-bond interaction to retain the medicine at the focus position. The composition preparation disclosed by the invention is good in moisturizing performance and simple and convenient to use, and can be used for effectively treating skin toxic reactions such as pustule type rash, skin dryness and itching, perionychomycosis, abnormal hair regeneration and the like caused by EGFRIs.

Use of cholesterol sulfate or a derivative thereof in the preparation of a composition for treating atopic dermatitis or alleviating symptoms thereof. Cholesterol sulfate or the derivative thereof can inhibit keratinocytes from generating and releasing TSLP, thereby inhibiting the formation of type II inflammation, and can effectively treat or prevent AD and alleviate the symptoms thereof. Provided is a topical medicament or cosmetic comprising cholesterol sulfate or the derivative thereof.

The present invention relates to a method for producing a skin tissue model, comprising: (a) isolating and culturing fibroblasts and keratinocytes from skin tissue; (b) preparing a bioink composition for a dermal layer and a bioink composition for an epidermal layer, the bioink composition containing the isolated cells; and (c) producing a skin tissue model using the bioink composition for a dermal layer and the bioink composition for an epidermal layer.

To provide a method for simply and efficiently evaluating the inducibility of a foreign matter response reaction in the skin of a test sample without using an animal, and to provide a substance having the inhibitory properties of the foreign matter response reaction in the skin and a method for searching the same.SOLUTION: The method includes a step of bringing keratinocytes transformed with a vector having an enhancer sequence containing a foreign body-responsive sequence and a sequence encoding a reporter protein downstream of the enhancer sequence into contact with a solution containing a test sample, a step of measuring the expression level of the reporter protein in the keratinocytes, and a step of evaluating the inducibility of a foreign body response reaction of the test sample in the skin based on the expression level of the reporter protein. The problem is solved by providing an agent for suppressing foreign matter response reaction in the skin containing fregula 1 found by the search method.SELECTED DRAWING: Figure 3

The invention discloses TCN1 (Trancobalamin 1, cobalamin 1) and application of an inhibitor of the TCN1 in preparation of products for diagnosing and treating diseases of an autoimmune system. According to the invention, expression in psoriasis tissues is up-regulated and promoter DNA methylation is down-regulated into genes to screen TCN1 genes, an over-expression TCN1 HaCaT cell line is constructed, and it is verified that the over-expression TCN1 HaCaT cell line participates in keratinocyte proliferation and IL-17 activation as an autoantigen, can be used as a diagnostic marker and a therapeutic target of autoimmune skin diseases such as psoriasis and the like, and has broad application prospects. And a new direction is provided for mechanism research and treatment of autoimmune skin diseases such as psoriasis.

The invention provides a novel medicine for treating psoriasis by recovering keratinocyte Pp6 and application of the novel medicine. The novel medicine has the structural formula shown in the formula (I), has the remarkable effects of inhibiting epidermal hyperplasia, reducing the infiltration number of dermal inflammatory cells and the like on a psoriasis focus area, and has the very excellent relieving or treating effect on psoriasis.

The invention discloses a preparation method of drug-loaded membrane protein bionic vesicles based on a microfluidic technology and application of the drug-loaded membrane protein bionic vesicles to targeted melanocyte delivery drugs, and belongs to the technical field of pharmaceutical preparations. The method is easy and convenient to operate, assembly of the phospholipid bilayer and insertion of the membrane protein are accurately controlled through the laminar focusing technology, and the stable and efficient drug-loaded membrane protein bionic vesicle is formed. The drug-loaded membrane protein bionic vesicles can effectively target melanocytes, promote the uptake of the vesicles, significantly improve the accumulation of drugs in the melanocytes, and enhance the treatment effect on melanocyte related diseases (such as hyperpigmentation, melanoma, vitiligo and the like). Meanwhile, the drug-loaded bionic vesicles constructed by the invention have relatively low keratinocyte uptake rate, drug uptake of non-targeted tissues is effectively reduced, and side effects of drugs are reduced, so that the drug-loaded membrane protein bionic vesicle system constructed by the invention has great prospects in the aspect of treating melanocyte related diseases.

The invention belongs to the technical field of biological medicines, and particularly relates to application of a marine small molecule peptide and an active variant thereof in preparation of a medicine for treating skin diseases, the marine small molecule peptide and the active variant thereof can effectively inhibit keratinocyte pan apoptosis induced by TNF-alpha and IFN-gamma, the formation of a PANoptosome complex is blocked through a multi-target synergistic effect, and the effect of treating the skin diseases is achieved. The oxidative stress is reduced, and mitochondria is stabilized, so that a skin inflammatory cell death network is inhibited from the source. The variant has the same high sequence as the peptide, retains the activity of inhibiting cell pan-apoptosis, and has enhanced stability, skin permeability, in vivo half-life or efficacy. Based on the action mechanism, the peptide and the variant thereof can be used for preparing medicines for preventing and treating intractable skin diseases such as epidermis necrolysis, psoriasis, atopic dermatitis, skin lupus erythematosus and lichen planus. The invention also provides a composition containing the peptide or the variant thereof, and dosage forms comprise an external preparation and an injection.

The invention discloses a formula of traditional Chinese medicine acne-removing cream and a production process thereof. The traditional Chinese medicine composition is prepared from the following medicinal materials in parts by weight: 5 to 9 parts of radix arnebiae seu lithospermi, 1 to 3 parts of radix angelicae sinensis, 1 to 2 parts of bakuchiol, 20 to 25 parts of linseed oil, 10 to 15 parts of beewax, 1 to 2 parts of rosa rugosa, 1 to 3 parts of radix et rhizoma rhei, 2 to 4 parts of cortex phellodendri, 3 to 5 parts of rhizoma atractylodis-pericarpium citri reticulatae powder, 1 to 2 parts of rhizoma arisaematis powder, 1 to 3 parts of vitamin E, 0.2 to 0.6 part of adenosine, 0.5 to 1 part of Ectoine, 0.1 to 0.3 part of Pinoline and 2 to 4 parts of purified water. Alkannin contained in the radix arnebiae seu lithospermi has strong antibacterial and anti-inflammatory capacities and does not generate the problem of drug resistance, so that the growth of acnes is inhibited from the source. Angelica polysaccharide can promote proliferation of keratinocytes, enhance the skin barrier function and effectively resist external stimulation. Different from common hormones, salicylic acid and other irritant components in traditional acne-removing products, the formula integrates the double effects of safe acne removal and long-acting skin care by means of natural power.

To provide a skin-whitening agent, autophagy derivative, and epidermis hyperplasia inhibitor.SOLUTION: Provided are a humus extract containing fulvic acid and mineral, and / or a skin-whitening agent including uncoupler other than fulvic acid, an autophagy derivative including uncoupler in keratinocyte, and an epidermis hyperplasia inhibitor including uncoupler.SELECTED DRAWING: None

The application discloses application of 12-ketolithocholic acid in preparation of a medicine for preventing or treating atopic dermatitis, and the 12-ketolithocholic acid can inhibit NUAK2 kinase activity expression and activity, and then negatively regulates a downstream TNF inflammatory signal path, significantly down-regulates IL-1beta, IL-8 and various proinflammatory factor secretion, and inhibits keratinocyte excessive inflammatory activation. The 12-ketolithocholic acid and ginsenoside F2 are compounded and used in combination to produce synergistic effect, and the anti-inflammatory effect is further enhanced; the active substance has low cytotoxicity and good safety, can be prepared into an external ointment or an oral preparation, and has a wide application prospect in the field of atopic dermatitis prevention and treatment.

The invention discloses a whitening composition as well as a preparation method and application thereof. The whitening composition is prepared from the following components: a tea leaf extract, a lavender flower extract and water, wherein the tea leaf extract, the lavender flower extract and the water are added into the whitening composition. The whitening composition can interact and synergistically improve the autophagy ability of cells, synergistically improve the phagocytosis of melanin in keratinocytes and the removal ability of skin metabolic wastes, can synergistically inhibit the generation of melanin and synergistically improve the expression of miR-137 genes in melanocytes, has a relatively high development prospect of cosmetics with whitening effects, and has a wide application prospect. Moreover, the composition is mild in property, easy to absorb and non-irritant, and can be widely applied to skin care cosmetics.

The invention discloses a hederacoside C deglycosylation derivative and a preparation method and application thereof.The hederacoside C deglycosylation derivative is prepared from hederacoside C through specific glycosidase hydrolysis, different products can be flexibly regulated and enriched on the basis of selectivity of different glycosidase to glucosidic bonds and glycosyl sites, the preparation method is simple, reaction conditions are mild, and the hederacoside C deglycosylation derivative is suitable for industrial production. The method is suitable for large-scale mass production. The hederacoside C deglycosyl derivative does not show obvious cytotoxicity to human immortalized keratinocytes, has the effect of promoting cell proliferation and the activity of promoting cell migration, and can obviously inhibit LPS (lipopolysaccharide)-induced cell apoptosis. Besides, the partial hederacoside C deglycosyl derivatives can reduce inflammatory factor level rise caused by wounds, remarkably promote wound healing and reduce formation of wound scars, and have good application prospects in preparation of drugs or skin care products for promoting wound repair.

The invention discloses a pharmaceutical composition with skin repairing, anti-inflammatory and anti-aging effects as well as a preparation method and application of the pharmaceutical composition. The pharmaceutical composition mainly comprises a stem cell exosome and a fusion polypeptide-single domain antibody conjugate, and can also comprise proline and pharmaceutically acceptable auxiliary materials. The amino acid sequence of the fusion polypeptide is as shown in SEQ ID NO.1, and the fusion polypeptide can specifically target skin cells; the single-domain antibody is an anti-IL-6 single-domain antibody, the amino acid sequence of the single-domain antibody is shown as SEQ ID NO.2, and the single-domain antibody can efficiently inhibit inflammatory factors. Experiments show that through the synergistic effect of all the components, the composition remarkably promotes proliferation of skin fibroblasts and keratinocytes, inhibits secretion of inflammatory factors such as IL-6 and TNF-alpha, promotes synthesis of collagen, effectively improves skin aging and inflammation states and has wide application prospects in the fields of skin repair, inflammation resistance and senescence resistance.