WO2020111271A1 - 皮膚の色素沈着を治療または予防するための組成物 - Google Patents
皮膚の色素沈着を治療または予防するための組成物 Download PDFInfo
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- WO2020111271A1 WO2020111271A1 PCT/JP2019/046903 JP2019046903W WO2020111271A1 WO 2020111271 A1 WO2020111271 A1 WO 2020111271A1 JP 2019046903 W JP2019046903 W JP 2019046903W WO 2020111271 A1 WO2020111271 A1 WO 2020111271A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
- A61K35/33—Fibroblasts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
- A61K35/48—Reproductive organs
- A61K35/54—Ovaries; Ova; Ovules; Embryos; Foetal cells; Germ cells
- A61K35/545—Embryonic stem cells; Pluripotent stem cells; Induced pluripotent stem cells; Uncharacterised stem cells
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/98—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution of animal origin
- A61K8/981—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution of animal origin of mammals or bird
- A61K8/982—Reproductive organs; Embryos, Eggs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/98—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution of animal origin
- A61K8/981—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution of animal origin of mammals or bird
- A61K8/985—Skin or skin outgrowth, e.g. hair, nails
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
Definitions
- the present invention relates to a composition for treating or preventing skin pigmentation, which comprises fibroblasts as an active ingredient.
- Dermal is an organ that covers the body surface that separates the environment inside and outside the body.
- the skin acts as a physical barrier, protects dryness and harmful substances from invading the living body, and plays an essential role in maintaining life.
- the skin of higher vertebrates is roughly composed of epidermis, dermis, and subcutaneous tissue layers, which are roughly divided from the outermost layer.
- the epidermis is mainly composed of cells called keratinocytes (keratinocytes).
- the keratinocytes divide at the deepest part (basal layer) of the epidermis, and to the upper layer, to the stratum spinosum, granular layer, and stratum corneum. It moves to the surface while differentiating, and eventually becomes dirt and falls off.
- Melanin exists in the basal layer of the epidermis, and melanin is produced by the melanosomes in the melanocyte. The generated melanin is incorporated into the surrounding keratinocytes. The melanin taken in migrates to the stratum corneum with the turnover of keratinocytes and is excreted out of the body in about 40 days.
- Pigmentation of skin spots, freckles, etc. is caused by excessive formation of melanin in melanocytes due to hormonal abnormalities, exposure to ultraviolet rays, local inflammation, etc., and deposition of melanin granules in keratinocytes in the basal layer of the epidermis. Is believed to be the cause.
- a method for treating or preventing pigmentation for example, senile pigment spots due to aging, and a therapeutic agent (whitening agent) have been developed, the expected effect cannot be obtained or a temporary effect is not obtained.
- a therapeutic agent whitening agent
- Patent Document 1 discloses a mixed cell composition of melanocytes and fibroblasts for the purpose of treating depigmentation in the skin.
- Reference 2 discloses a method of applying autologous dermal fibroblasts for anti-aging, particularly for removing skin wrinkles.
- the object of the present invention is to provide a composition for treating or preventing skin pigmentation.
- the present invention includes the following inventions.
- a composition for treating or preventing skin pigmentation which comprises fibroblasts as an active ingredient, wherein the fibroblasts are less damaged than fibroblasts localized at the skin pigmentation site,
- the composition is applied to the dermal tissue at or near the pigmented site.
- the pigmentation is derived from a disease selected from one or more selected from the group consisting of senile pigment spots, seborrheic keratoses, chloasma, ovale and petaloid pigment spots.
- Composition [3] The composition according to [1] or [2], wherein the fibroblasts are derived from tissues of a low-exposed site or a non-exposed site of a living body.
- the fibroblast is derived from a tissue selected from the group consisting of buttocks, abdomen, chest, thigh, upper arm, back, gingiva, oral mucosa, head, palm, palm and posterior pinna.
- the composition according to any one of [1] to [3].
- [5] The composition according to any one of [1] to [4], wherein the fibroblasts are autologous fibroblasts.
- [6] The composition according to [1] or [2], wherein the fibroblasts are fibroblasts differentiated from pluripotent stem cells or tissue stem cells.
- the fibroblast has a lower expression of a cell senescence marker than the fibroblast localized at the pigmentation site, according to any one of [1] to [6].
- the cell senescence marker is 1 or a selected from the group consisting of aging-related acid ⁇ -galactosidase (SA- ⁇ gal), a cell cycle check mechanism-related factor, and a cell-senescence-related secretory phenomenon (SASP) factor.
- SA- ⁇ gal aging-related acid ⁇ -galactosidase
- SASP cell-senescence-related secretory phenomenon
- a method for treating or preventing skin pigmentation comprising: Applying a composition containing fibroblasts as an active ingredient to a subject in need thereof, Here, the fibroblasts are fibroblasts with less damage than the fibroblasts localized in the skin pigmentation site, The method, wherein the composition is applied to dermal tissue at or near the pigmented site.
- a non-therapeutic cosmetic method for reducing or preventing skin pigmentation comprising: Applying a composition containing fibroblasts as an active ingredient to a subject in need thereof, Here, the fibroblasts are fibroblasts with less damage than the fibroblasts localized in the skin pigmentation site, The method, wherein the composition is applied to dermal tissue at or near the pigmented site.
- the present invention makes it possible to treat or prevent the excessive synthesis of melanin occurring at the pigmentation site.
- FIG. 1 is a schematic diagram showing a method for evaluating a composition according to the present invention. Each component mainly represents a cross section.
- FIG. 2 shows the difference in proliferation of PUVA-treated and untreated fibroblasts.
- A Images of monolayer-cultured PUVA-treated or untreated (control) fibroblasts (culture day 1, 4 and 7).
- B Proliferation graph of fibroblasts after PUVA treatment.
- FIG. 3 shows the difference in the production level of the senescence-related factor, SA- ⁇ -gal, in PUVA-treated or untreated (control) fibroblasts.
- SA- ⁇ -gal the production level of the senescence-related factor
- FIG. 4 shows the difference in the production level of the melanogenesis promoting factor SCF (Stem Cell Factor) in PUVA-treated or untreated (control) fibroblasts.
- SCF Stem Cell Factor
- A A graph showing changes over time in SCF production.
- B SCF staining using SCF antibody, nuclear staining using DAPI, fusion image of SCF staining and nuclear staining (Merge) (2 sheets each).
- FIG. 5 shows the difference in the production level of the melanogenesis promoting factor HGF (Hepatocyte growth factor) in PUVA-treated or untreated (control) fibroblasts.
- HGF Hepatocyte growth factor
- FIG. 6 shows the pigmentation of a pigmented skin model with or without PUVA treatment.
- A Images of the epidermis model in the pigmented skin model treated with PUVA (day 0 of culture, day 21 of culture).
- B Images of the epidermis model in the PUVA untreated pigmented skin model (culture day 0, culture day 21).
- FIG. 7 is an image of the epidermis model after the epidermis model co-cultured with the PUVA-treated dermis model for about 10 days was transferred to the PUVA-untreated dermis model and cultured for about 10 days.
- FIG. 8 shows an epidermal model (Replace) in which the epidermis model of the PUVA-treated or untreated (control) and the epidermis model of the PUVA-treated pigmented skin model was transferred onto the PUVA-untreated dermis model and cultured. Shows pigmentation.
- A An image of an epidermis model taken under fixed observation conditions in a bright field of a phase contrast microscope.
- (B) A graph in which the image of (A) is binarized to quantify the ratio of the pigmented region.
- FIG. 9 shows an epidermal model (Replace) in which the epidermis model of the PUVA-treated or untreated (control) pigmented skin model and the PUVA-treated pigmented skin model were transferred onto the PUVA-untreated dermis model and cultured. Shows the melanin granules of.
- A Stain melanin granules in an epidermis model section by the Fontana Masson staining method.
- B The graph which binarized the image of (A) and quantified the ratio of the melanin granule area
- FIG. 10 shows an epidermal model (Replace) obtained by transferring and culturing an epidermis model of a PUVA-treated or untreated (control) pigmented skin model and a PUVA-treated pigmented skin model onto a PUVA-untreated dermis model. Shows activated melanocytes of.
- A Image obtained by staining the activated melanocytes of the epidermis model section with the TRP2 (Tyrosine Related Protein 2) antibody and nuclear staining with the hematoxylin staining method.
- B A graph quantifying the proportion of activated melanocytes from the images of (A).
- first the first element is the second element.
- second element may be expressed as the first element, which does not depart from the scope of the present invention.
- the present invention provides a composition for treating or preventing skin pigmentation, which comprises fibroblasts as an active ingredient, wherein the fibroblasts are the skin pigmentation site.
- the present invention provides a composition characterized by being less damaged than fibroblasts localized in a., wherein the composition is applied to dermal tissue at or near the pigmentation site.
- the present invention suppresses the excessive synthesis of melanin by melanocytes present in the epidermis, as a result, it is possible to treat or prevent skin pigmentation, also in a cosmetic method for reducing or preventing skin pigmentation. Can be used.
- the “dermis tissue in the vicinity of the pigmented site” is a dermal tissue existing in the peripheral portion of the pigmented site, and for example, 1 cm or less, preferably 5 mm or less, more preferably from the boundary of the pigmented site. Indicates a dermal tissue contained in a region within 3 mm, most preferably within 1 mm.
- Pigmentation is considered to be caused by excessive formation of melanin in melanocytes due to hormonal abnormalities, exposure to ultraviolet rays, local inflammation, etc., and deposition of melanin granules in keratinocytes of the basal layer of the epidermis. There is. Pigmentation is caused by diseases such as senile pigmented spots, seborrheic keratoses, liver spots, spotted ovale and petaloid spots. That is, by applying the present invention, the hypersynthesis of melanin from melanocytes at the pigmentation site is suppressed, it is possible to treat or prevent pigmentation, and also a cosmetic method for reducing or preventing skin pigmentation. Can also be used for
- Fibroblast is one of the cells that make up connective tissue, and is a cell that exists in many organs and tissues. Fibroblasts produce components that make up the dermis, such as collagen, elastin and hyaluronic acid.
- the composition of the present invention contains fibroblasts that are less damaged than the fibroblasts localized at the skin pigmentation site.
- "fibroblasts that are less damaged than fibroblasts localized in skin pigmentation site” means that DNA damage is less than that in fibroblasts localized in skin pigmentation site. It refers to few fibroblasts.
- DNA that carries genetic information contained in cells is constantly damaged by active oxygen, ultraviolet rays, radiation, and/or chemical substances.
- DNA damages are repaired by the action of various DNA repair mechanisms provided in cells.
- DNA repair cannot catch up and DNA damage accumulates.
- mutations are accumulated in the cell DNA, and the aging state of the cell progresses.
- Fibroblasts that are less damaged than fibroblasts localized at the skin pigmentation site mean fibroblasts that have a lower degree of cellular senescence than fibroblasts localized at the skin pigmentation site. You can also It can also be said to be a fibroblast having a smaller cell size and/or higher proliferation than the fibroblast localized at the skin pigmentation site. Cell senescence can be assessed, for example, by examining the expression of cell senescence markers.
- cell senescence markers include aging-related acid ⁇ -galactosidase (SA- ⁇ gal), cell cycle check mechanism-related factors (eg p16 INK4a , p21 CIP1 , and/or p53), and cell senescence-related secretion phenomenon (Senceence).
- SA- ⁇ gal aging-related acid ⁇ -galactosidase
- cell cycle check mechanism-related factors eg p16 INK4a , p21 CIP1 , and/or p53
- Senceence cell senescence-related secretion phenomenon
- SASP -Associated secretory phenotype
- SASP factors include inflammatory cytokines, chemokines, growth factors, extracellular matrix degrading enzymes, and the like, but are not limited to, for example, GM-CSF, GRO- ⁇ , GRO- ⁇ , GRO- ⁇ , IGFBP-7, IL -1 ⁇ , IL-6, IL-7, IL-8, MCP-1, MCP-2, MIP-1 ⁇ , MMP-1, MMP-10, MMP-3, amphiregulin, ENA-78, iotaxin-3 , GCP-2, GITR, HGF, ICAM-1, IGFBP-2, IGFBP-4, IGFBP-5, IGFBP-6, IL-13, IL-1 ⁇ , MCP-4, MIF, MIP-3 ⁇ , MMP-12 , MMP-13, MMP-14, NAP2, oncostatin M, osteoprotegerin, PIGF, RANTES, sgp130, TIMP-2, TRAIL-R3, Acrp30, angiogenin, Axl, bF
- a known method may be used, and it is not limited, and for example, an ELISA method, a real-time PCR method, a Western blotting method, a northern blotting method, a flow cytometer method, a microarray method, or the like is used. It is possible to compare the expression levels of cell senescence markers by these methods. Fibroblasts that are less damaged than fibroblasts localized in the skin pigmentation site, for example, a composition containing fibroblasts having a lower expression level of a cell senescence marker than fibroblasts localized in the skin pigmentation site Is applied to the dermal tissue at or near the site of pigmentation to treat or prevent pigmentation.
- the fibroblasts used in the present invention may be fibroblasts derived from a tissue at a low-exposed site or a non-exposed site of a living body.
- tissue of a low-exposed or non-exposed part of a living body means a part that is covered by clothes, hair, or the like at many times when humans live their daily lives, and is exposed to light. Is relatively low (for example, as compared to the face), for example, buttocks, abdomen, chest, thighs, upper arms, back, gingiva, oral mucosa, head, palms, palms or Examples include tissues such as the rear part of the auricle.
- the fibroblasts derived from the tissue in the low-exposure site are preferable because they are less likely to be exposed to light, particularly ultraviolet light, and therefore less damaged.
- the fibroblasts used in the present invention may be primary fibroblasts obtained by finely chopping biological tissues and treating with collagenase, trypsin and other proteolytic enzymes. It may be a fibroblast that has been proliferated by subculturing the fibroblast.
- the fibroblasts used in the present invention may be those cultured using a known medium.
- the fibroblasts used in the present invention may be autologous fibroblasts.
- Autologous fibroblasts are preferred as they are not rejected by the immune response when applied to a subject.
- the fibroblast used in the present invention may be a pluripotent stem cell or a fibroblast differentiated from a tissue stem cell.
- the pluripotent stem cell may be an iPS cell, an ES cell, a Muse cell, or the like, and is obtained from these pluripotent stem cells by a differentiation induction by a known method or in the process of differentiation induction.
- Progenitor cells of fibroblasts may be used.
- dermis tissue also referred to as dermis
- dermis tissue is a tissue existing between epidermis and subcutaneous tissue in the skin, and mainly includes fibroblasts, collagen, elastic fibers (elastin), and cells. It is composed of outer matrix and hyaluronic acid.
- the method of applying the composition of the present invention may be any means known in the art for providing cell therapy, such as the method of injecting the composition in suspension by a syringe.
- composition of the present invention may contain a pharmaceutically acceptable carrier in addition to fibroblasts.
- pharmaceutically acceptable carrier is approved by the regulatory agencies of each country, and can be used in animals, particularly humans, diluents, adjuvants, excipients, vehicles, etc. Say.
- carriers that may be included in the compositions of the present invention include, but are not limited to, physiological buffer solutions, injectable gel solutions, saline, and water.
- Physiological buffer solutions that can be used in the present invention include, but are not limited to, buffered saline, phosphate buffer, Hank's balanced salt solution, Tris buffered saline, and HEPES buffered saline. Not done.
- the injectable gel solution that can be used in the present invention may be in gel form before injection or may be gelled after injection.
- Injectable gel solutions consist, for example, of water, saline or physiological buffer solutions, and gelling substances.
- gelling substances include proteins (collagen, elastin, thrombin, fibronectin, gelatin, fibrin, tropoelastin, polypeptides, laminin, proteoglycans, fibrin glue, self-assembling peptide hydrogels, atelocollagen, etc.)
- Sugars pectin, cellulose, oxidized cellulose, chitin, chitosan, agarose, hyaluronic acid, etc.
- polynucleotides ribonucleic acids, deoxyribonucleic acids, etc.
- alginates cross-linked alginates, poly(N-isopropylacrylamide), poly (Oxyalkylene), poly(ethylene oxide)-poly(propylene oxide) cop
- the number of fibroblasts contained in the composition of the present invention is appropriately determined depending on the size of the site of pigmentation applied, the degree of pigmentation, the age of the subject, the target disease, the application method, etc. Not limited.
- composition of the present invention can be evaluated by using, for example, the pigmented skin model 1a shown in FIG. For example, it can be evaluated by a method including the following procedure.
- a step of culturing after the fibroblast 100 is damaged by light irradiation (corresponding to FIG. 1A), (2) A step of culturing the fibroblast 100 obtained in the step (1) on the first cell culture insert 11 (corresponding to FIG. 1(B)), (3) A step of culturing the cell group 200 containing the melanocytes 202 and the keratinocytes 201 on the second cell culture insert 21 (corresponding to FIG. 1(C)), (4) A step of setting and culturing the second cell culture insert 21 in which the fibroblast 100 obtained in the step (2) is cultured on the fibroblast 100 obtained in the step (2) ( (Corresponding to FIG.
- the first cell culture insert 11 in which the fibroblasts 100 are cultured and the third cell culture insert 31 in which the composition 300 is cultured imitate the structure of the dermis of the skin.
- “Dermis model” first dermis model 10 or second dermis model 30.
- the structure including the cell group 200 imitates the structure of the epidermis of the skin, and thus may be referred to as “epidermal model 20”.
- Fibroblast 100 is exposed to light and damaged, preferably in the presence of a photosensitizer.
- the photosensitizer used include psoralen, NAD, riboflavin, tryptophan, folic acid, porphyrin, methylene blue, and gold nanoclusters protected by a tinol group (AUxSRy).
- AUxSRy gold nanoclusters protected by a tinol group
- the light used to damage the fibroblasts 100 may damage the nucleic acids in the cells, such as DNA and RNA, but may be of a wavelength that does not kill all cells, and may be ultraviolet light (about 200 nm to about 200 nm). 400 nm), more preferably UVA (about 320 nm to about 400 nm).
- the intensity of light to be irradiated may damage nucleic acids in cells, such as DNA and RNA, but may be such that apoptosis or the like is not induced to kill all cells, such as wavelength, irradiation time, and cell density. It may be adjusted as appropriate.
- irradiation with UVA 0.01J / cm 2 ⁇ 100J / cm 2, preferably 0.1J / cm 2 ⁇ 20J / cm 2, more preferably a 0.5J / cm 2 ⁇ 10J / cm 2 irradiation do it.
- Fibroblasts damaged by light irradiation have, for example, elongated cell morphology, reduced proliferative capacity, senescence-related factors (senescence-related acid ⁇ -galactosidase (SA- ⁇ -gal)), melanin-producing factors (eg, It is characterized by an increased level of cell aging such as an increase in the production of stem cell growth factor (SCF) and hepatocyte growth factor (HGF) (see FIGS. 2, 3, 4, and 5).
- SCF stem cell growth factor
- HGF hepatocyte growth factor
- the second cell culture insert 21 is smaller than the inner diameters of the first cell culture insert 11 and the third cell culture insert 31. As a result, the second cell culture insert 21 can be used by inserting it into the culture portion of the first cell culture insert 11 and the third cell culture insert 31.
- the cells used in the pigmented skin model 1 may be derived from any animal, but are preferably derived from vertebrates, more preferably mammals, and most preferably humans.
- Fibroblasts 100 used in the pigmented skin model (1, 1a) are preferably dermis-derived fibroblasts.
- Keratinocytes 201 are one of the cells that make up the epidermis, and in the epidermal tissue of living organisms, they divide into the spinous layer, the granular layer, and the stratum corneum toward the upper layers while dividing at the deepest part (basal layer). It is a cell that migrates to the surface while becoming solid, and eventually becomes dirt and falls off.
- the melanocyte 202 is one of the cells that make up the epidermal tissue, and is a cell that exists in the basal layer of the epidermis and forms melanin in the living body.
- the fibroblasts 100, keratinocytes 201 and melanocytes 202 used in the pigmented skin model (1, 1a) may be primary culture cells collected from living tissue, and may be isolated and/or proliferated in advance and commercially available. Alternatively, it may be a distributed cell, an established cell, or a cell derived from a pluripotent stem cell such as an ES cell, an iPS cell, or a Muse cell.
- the first dermis model 10 may include cells other than the fibroblasts 100, and includes, for example, mast cells, histiocytes, plasma cells, dermal dendritic cells contained in dermal tissue, etc. Good.
- the fibroblasts included in the first dermis model 10 include, for example, a cell number of 1 ⁇ 10 4 to 10 8 cells/cm 2 , preferably 0.1 to 10 ⁇ 10 5 cells/cm 2 .
- fibroblasts 100 are preferably seeded together with a hydrogelating agent.
- the “hydrogelating agent” refers to a substance added to form a hydrogel.
- the hydrogelating agent used in the present invention include collagen, gelatin, hyaluronate, hyaluronan, fibrin, alginate, agarose, chitosan, chitin, cellulose, pectin, starch, laminin, fibrinogen/thrombin, fibrillin, elastin, gum.
- Step (2) may be carried out in the presence of ascorbic acid or its salt.
- the presence of ascorbic acid or a salt thereof is preferable because the proliferation of fibroblasts 100 and the production of collagen are promoted to promote stratification like the structure of the dermis.
- “ascorbic acid” refers to ascorbic acid or a derivative thereof (eg, ascorbic acid diphosphate, ascorbic acid monophosphate, sodium L-ascorbate, L-ascorbic acid 2-glucoside, etc.),
- the salt sodium salt, magnesium salt, etc. is also included.
- the cell group 200 may include cells other than the keratinocytes 201 and the melanocytes 202, and may include, for example, Langerhans cells or Merkel cells included in the epidermal composition.
- the cell group 200 contains, for example, keratinocytes 201:melanocytes 202 at a ratio of 1:1 to 1000:1, preferably 30:1 to 3:1.
- Cell group 200 for example, keratinocytes 201 1 ⁇ 10 2 ⁇ 10 6 pieces / cm 2, preferably 1.0 ⁇ 10 ⁇ 10 4 cells / cm 2, and more preferably from about 4 ⁇ 8 ⁇ 10 4 pieces / cm 2 , and the melanocytes 202 contain 1 to 10 ⁇ 10 3 cells/cm 2 , preferably 4 to 8 ⁇ 10 3 cells/cm 2 .
- TESTSKIN trademark
- LSE-melano TOYOBO
- MelanoDerm trademark
- MatTek MelanoDerm
- the pigmented skin model 1 is, for example, a culture medium used for usual keratinocyte culture, such as KG medium, Epilife KG2 (Kurabo), Humedia-KG2 (Kurabo), assay medium (TOYOBO), etc., at about 37° C. It can be cultured for 0 to 30 days.
- a culture medium used for usual keratinocyte culture, such as KG medium, Epilife KG2 (Kurabo), Humedia-KG2 (Kurabo), assay medium (TOYOBO), etc.
- KG medium Epilife KG2 (Kurabo), Humedia-KG2 (Kurabo), assay medium (TOYOBO), etc.
- pigmented skin model 1 fibroblasts damaged by light irradiation directly or indirectly act on melanocytes to promote melanin production. Therefore, by measuring the degree of pigment production and/or pigmentation of the pigmented skin model 1, it is possible to evaluate the factors that affect pigmentation.
- pigment production refers to production of a pigment produced by a pigmented skin model, for example, melanin pigment.
- Melanin pigments are mainly produced by melanocytes.
- the amount of pigment production for example, the amount of melanin can be determined by extracting the melanin pigment from a pigmented skin model, particularly the second cell group (keratinocytes and melanocytes) and measuring the absorbance at 405 nm.
- the amount of pigment production is determined by, for example, the pigmentation skin model, particularly the amount of melanin contained in the second cell group (keratinocytes and melanocytes) or the amount of nucleic acid encoding the same (for example, amount of mRNA), ELISA method, flow cytometer method, western method. It can be measured by using a method such as a blotting method, an immunohistochemistry method, a qPCR method, but is not limited thereto.
- the “pigmentation degree” refers to the lightness of color of a pigmented skin model under visible light, particularly the second cell group (keratinocytes and melanocytes).
- the brightness changes depending on the amount of melanin produced by melanocytes. Therefore, as the amount of melanin increases, the lightness decreases, and the pigmented skin model has a dark color. Conversely, when the amount of melanin decreases, the lightness increases, and the pigmented skin model has a pale color. That is, by comparing the lightness of colors of pigmented skin models, the therapeutic or preventive effect of pigmentation by the added candidate substance can be evaluated.
- the lightness can be quantified by recording a pigmented skin model as an image and using a known image measuring means.
- UVE-502S UVE-502S was performed (hereinafter referred to as "PUVA treatment"). Then, after swelling with 1 mL of PBS, the PBS was removed, the medium was replaced with a growth medium, and the cells were cultured for about 2 to 7 days. In the process, cells were partially killed by the effect of PUVA treatment, but thereafter, viable fibroblasts were proliferated. PUVA-untreated fibroblasts from the same donor served as controls for the PUVA-treated fibroblasts (FIGS. 2-5).
- a dermis model was prepared by using PUVA-treated or PUVA-untreated (control) fibroblasts, respectively. Briefly, the above 1. After the procedure of 1., the growth medium was removed and swollen with 1 mL of PBS. Thereafter, PBS was removed, 300 ⁇ L of a cell detachment agent (TrypLE SELECT, manufactured by Thermo Fisher Scientific) was added to each well of a 6-well plate, and the cells were allowed to stand in a 37° C. 5% CO 2 incubator for 5 minutes to perform cell detachment treatment. went. The reaction was stopped by adding a growth medium, and the cell suspension was collected in a 15 ml centrifuge tube.
- a cell detachment agent TrypLE SELECT, manufactured by Thermo Fisher Scientific
- the cell culture insert for preparing a dermis model was placed on a 6-well plate, and 3 mL gel suspension was added into the cell culture insert. After solidifying the gel suspension at 37 °C 5% CO 2 incubator, the growth medium containing ascorbic acid (AA2G) was added 2mL to 6 well plates, incubated for 24 hours at 37 °C 5% CO 2 incubator did.
- A2G ascorbic acid
- the skin model is the same as the above 1-2. Put it on the dermis model (see Figure 1(D)) and put it in a dedicated container (Corning Biocoat, deep well plate, 6 wells) (Corning #355467) to get 9.5 mL of 3D skin.
- a model medium (medium for exclusive use of epidermis model (MatTek #EPI-100-NMM-113) mixed with DMEM at a ratio of 1:1) was added, and the medium was replaced with the same medium once every 3 to 4 days. went.
- FIG. 6 is a diagram showing pigmentation of an epidermal model in a pigmented skin model after (A) or untreated (B) after PUVA treatment. It was observed that pigmentation was promoted in the epidermis model in the pigmented skin model treated with PUVA.
- Epidermis models of PUVA-treated or untreated (control) pigmented skin model and PUVA-treated pigmented skin model Observation of the appearance of the epidermal model (Replace), which was transferred to the model and cultured, showed that pigmentation was promoted in the epidermis model of the PUVA-treated pigmented skin model, whereas that in the epidermis model of the Replace condition was reduced. The behavior was observed (FIG. 8(A)). Quantification was performed based on the image in FIG. 8(A). The highest proportion of pigmented area was observed in the pigmented skin model treated with PUVA, whereas the pigmented skin model was tested in the Replace condition. It was shown that the area was reduced (FIG. 8(B)).
- Second medium 100
- Cell group containing melanocytes and keratinocytes 201 Keratinocytes 202 melanocyte 21 second cell culture insert 22 second cell culture vessel 23 third medium 24 fourth medium 30 second dermis model 300 composition 31 third cell culture insert 32 third cell culture vessel RD light irradiation dFB damage by light irradiation Fibroblasts
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Abstract
Description
ここで前記線維芽細胞が、前記皮膚の色素沈着部位に局在する線維芽細胞よりも損傷が少ない線維芽細胞であり、
前記組成物は、前記色素沈着部位またはその近傍の真皮組織に適用されることを特徴とする、組成物。
[2] 前記色素沈着が、老人性色素斑、脂漏性角化症、肝斑、雀卵斑および花弁状色素斑からなる群から1以上選択される疾患に由来する、[1]に記載の組成物。
[3] 前記線維芽細胞が、生体の低露光部位または非露光部位の組織由来である、[1]または[2]に記載の組成物。
[4] 前記線維芽細胞が、臀部、腹部、胸部、大腿部、上腕部、背部、歯肉、口腔粘膜、頭部、手掌、蹠および耳介後部からなる群から選択される組織由来である、[1]~[3]のいずれか1項に記載の組成物。
[5] 前記線維芽細胞が、自家の線維芽細胞である、[1]~[4]のいずれか1項に記載の組成物。
[6] 前記線維芽細胞が、多能性幹細胞または組織幹細胞から分化した線維芽細胞である、[1]または[2]に記載の組成物。
[7] 前記線維芽細胞が、前記色素沈着部位に局在する線維芽細胞よりも細胞老化マーカーの発現が低いことを特徴とする、[1]~[6]のいずれか1項に記載の組成物。
[8] 前記細胞老化マーカーが、老化関連酸性β-ガラクトシダーゼ(SA-βgal)、細胞周期チェック機構関連因子および細胞老化関連分泌現象(Senescence-associated secretory phenotype(SASP))因子からなる群から1又は2以上選択される、[7]に記載の組成物。
[9] 細胞治療によって適用されることを特徴とする、[1]~[8]のいずれか1項に記載の組成物。
[10] 皮膚の色素沈着を治療または予防する方法であって、
有効成分として、線維芽細胞を含む組成物を、それを必要とする対象に適用すること、を含み、
ここで前記線維芽細胞が、前記皮膚の色素沈着部位に局在する線維芽細胞よりも損傷が少ない線維芽細胞であり、
前記組成物は、前記色素沈着部位またはその近傍の真皮組織に適用されることを特徴とする、方法。
[11] 皮膚の色素沈着を軽減または予防する、非治療的な美容方法であって、
有効成分として、線維芽細胞を含む組成物を、それを必要とする対象に適用すること、を含み、
ここで前記線維芽細胞が、前記皮膚の色素沈着部位に局在する線維芽細胞よりも損傷が少ない線維芽細胞であり、
前記組成物は、前記色素沈着部位またはその近傍の真皮組織に適用されることを特徴とする、方法。
一実施態様において、本発明は、有効成分として、線維芽細胞を含む、皮膚の色素沈着を治療または予防するための組成物であって、ここで前記線維芽細胞が、前記皮膚の色素沈着部位に局在する線維芽細胞よりも損傷が少ない線維芽細胞であり、前記組成物は、前記色素沈着部位またはその近傍の真皮組織に適用されることを特徴とする、組成物を提供する。本発明により、表皮に存在するメラノサイトによるメラニンの過剰合成を抑制し、その結果、皮膚の色素沈着を治療または予防することを可能とし、また、皮膚の色素沈着を軽減または予防する美容方法にも用いることができる。本明細書において、「色素沈着部位の近傍の真皮組織」とは、色素沈着部位の周辺部に存在する真皮組織であり、例えば、色素沈着部位の境界から1cm以内、好ましくは5mm以内、より好ましくは3mm以内、最も好ましくは1mm以内の領域に含まれる真皮組織をいう。
本発明の組成物は、例えば、図1の色素沈着皮膚モデル1aを用いることによって評価することができる。例えば、以下の手順を含む方法によって評価することができる。
(2)前記工程(1)で得られる線維芽細胞100を、第1セルカルチャーインサート11上で、培養する工程(図1(B)に相当)、
(3)メラノサイト202とケラチノサイト201とを含む細胞群200を、第2セルカルチャーインサート21上で、培養する工程(図1(C)に相当)、
(4)前記工程(2)で得られる線維芽細胞100の上に、前記工程(2)で得られる線維芽細胞100が培養されている第2セルカルチャーインサート21を設置し、培養する工程(図1(D)に相当)、
(5)組成物300を、第3セルカルチャーインサート31上で培養する工程(図1(E)に相当)、
(6)前記工程(5)で得られる組成物300が培養されている第3セルカルチャーインサート31上に、前記工程(4)で得られる線維芽細胞100が培養されている第2セルカルチャーインサート21を移し替え、培養する工程(図1(F)に相当)、
(7)前記工程(6)で得られるメラノサイト202とケラチノサイト201とを含む細胞群200における色素産生および/または色素沈着の度合いを指標として、組成物300の治療または予防効果を評価する工程。
1-1.線維芽細胞の培養およびPUVA処理
1×105個の正常ヒト線維芽細胞を増殖用培地(DMEM+10%牛胎児血清)で培養した。100%コンフルエントになる前にソラレン(終濃度25ng/mL)(SigmaAldrich社製)を加えた増殖用培地に置換し、培養した。24時間後に1mLのリン酸緩衝液(PBS)で膨潤させた後、PBSを取り除き、ソラレン(終濃度25ng/mL)を加えた1mLのPBSに置換し、6J/cm2 UVA照射(SAN-EI UVE-502S)を行った(以下、「PUVA処理」という)。その後、1mLのPBSで膨潤させた後、PBSを取り除いて、増殖用培地に置換し、2~7日程度培養した。その過程で、PUVA処理の影響で細胞が一部死滅するが、その後、生存している線維芽細胞が増殖した。PUVA未処理の同一ドナー由来線維芽細胞を上記PUVA処理線維芽細胞に対するコントロールとした(図2~5)。
上記1-1.においてPUVA処理、またはPUVA未処理(コントロール)の線維芽細胞をそれぞれ用いて真皮モデルを作製した。簡単に述べると、上記1.の手順後、増殖用培地を取り除いて1mLのPBSで膨潤させた。その後、PBSを取り除き、細胞剥離剤(TrypLE SELECT、Thermo Fisher Scientific社製)を6穴プレートの1ウェルあたり300μL添加し、37℃ 5%CO2インキュベーター内に5分間静置し、細胞剥離処理を行った。増殖用培地を添加して反応を停止させ、15ml遠沈管に細胞懸濁液を回収した。1000rpmで5分間遠心後、上清を除去し、細胞ペレットを増殖用培地で再懸濁し、5×105個の細胞/mLとなるように調整した。6穴プレートの各ウェルに適用可能な真皮モデルを作製するにあたり、表1の組成からなるゲル懸濁液を氷上にて調製した。
上記真皮モデルとは別に、メラノサイトとケラチノサイトで構成された市販の表皮モデル(MatTek社製)を使用した(図1(C)参照)。
PUVA処理線維芽細胞を用いて作製した真皮モデルと組み合わせて10日間培養した表皮モデルを、PUVA未処理の正常線維芽細胞を用いて作製した真皮モデルと置き換え、さらに10日間培養を行った(図1(E)および(F)参照)。なお、置き換え用真皮モデル(PUVA未処理の線維芽細胞を用いて作製した真皮モデル)は、置き換える前日に作製した。
2-1.PUVA処理後の線維芽細胞
図2は、PUVA処理後及び未処理の線維芽細胞を示している。PUVA処理後の線維芽細胞は、伸長していた(図2(A))。PUVA処理後及び未処理の線維芽細胞の増殖数の変動を調べたところ、PUVA処理後の線維芽細胞は増殖速度が著しく低下していた(図2(B))。
PUVA処理後及び未処理の線維芽細胞それぞれの細胞溶解物中の老化関連因子SA-β-galの酵素活性値について調べたところ、PUVA処理後の線維芽細胞はSA-β-galの酵素活性値が著しく増加していた(図3(A))。また、SA-β-galの染色を行ったところ、PUVA処理後の線維芽細胞は著しく多数のSA-β-gal陽性細胞(青緑色)が観察された(図3(B))。
PUVA処理後及び未処理の線維芽細胞それぞれ単層培養し、PUVA処理1日前、PUVA処理0、1、3、7、14、21日目に培養上清に含まれるSCF量をELISA法で測定し、1細胞あたりの分泌量として算出したところ、PUVA処理後の線維芽細胞のSCFレベルは著しく増加していた(図4(A))。また、SCF抗体を用いてSCF染色、DAPIによる核染色を行い、SCF染色および核染色の融合画像(Merge)を作成した結果、PUVA処理後の線維芽細胞においてSCF陽性細胞が多数観察された(図4(B))。
PUVA処理後及び未処理の線維芽細胞それぞれ単層培養し、HGF抗体を用いてHGF染色、DAPIによる核染色を行い、HGF染色および核染色の融合画像(Merge)を作成した結果、PUVA処理後の線維芽細胞においてHGF陽性細胞が多数観察された(図5(A))。
図6は、PUVA処理後(A)または未処理(B)の色素沈着皮膚モデルにおける、表皮モデルの色素沈着を示す図である。PUVA処理を行った色素沈着皮膚モデルにおける、表皮モデルは、色素沈着が促進されていることが観察された。
PUVA処理線維芽細胞を用いて作製した真皮モデルと組み合わせて10日間培養した表皮モデルを、PUVA未処理の正常線維芽細胞を用いて作製した真皮モデルと置き換え、さらに10日間培養を行った結果、PUVA処理を行った色素沈着皮膚モデルにおける表皮モデルの色素沈着(図6(A))に比べて色素沈着が抑制されていることが観察された(図7)。
PUVA処理または未処理(コントロール)の色素沈着皮膚モデル、およびPUVA処理の色素沈着皮膚モデルの表皮モデルを、PUVA未処理の真皮モデル上に移し替えて培養した表皮モデル(Replace)の外観について観察したところ、PUVA処理の色素沈着皮膚モデルの表皮モデルで色素沈着が促進したのに対し、Replace条件の表皮モデルでは色素沈着が緩和している様子が観察された(図8(A))。図8(A)の画像を元に定量化を行ったところ、PUVA処理の色素沈着皮膚モデルで最も色素濃化領域の割合が高いのに対して、Replace条件の色素沈着皮膚モデルでは色素濃化領域が減少することが示された(図8(B))。
PUVA処理または未処理(コントロール)の色素沈着皮膚モデル、およびPUVA処理の色素沈着皮膚モデルの表皮モデルを、PUVA未処理の真皮モデル上に移し替えて培養した表皮モデル(Replace)で切片を作成し、フォンタナマッソン染色法により表皮モデル切片のメラニン顆粒を染色した(図9(A))。また、図9(A)の染色像を二値化処理し、メラニン顆粒領域の割合を定量化したところ、PUVA処理の色素沈着皮膚モデルで最もメラニン領域の割合が高いのに対して、Replace条件の色素沈着皮膚モデルではメラニン領域が減少することが示された(図9(B))。
PUVA処理または未処理(コントロール)の色素沈着皮膚モデル、およびPUVA処理の色素沈着皮膚モデルの表皮モデルを、PUVA未処理の真皮モデル上に移し替えて培養した表皮モデル(Replace)で切片を作成し、TRP2抗体を用いて表皮モデル切片の活性化メラノサイトを染色し、ヘマトキシリン染色法で核を染色した(図10(A))。図10(A)の画像から活性化メラノサイトの割合を定量化したところ、PUVA処理の色素沈着皮膚モデルで最も活性化メラノサイト数の割合が高いのに対して、Replace条件の色素沈着皮膚モデルでは活性化メラノサイト数が減少することが示された(図10(B))。
10 第1真皮モデル
100 線維芽細胞
11 第1セルカルチャーインサート
12 第1細胞培養容器
13 第1培地
14 第2培地
20 表皮モデル
200 メラノサイトとケラチノサイトとを含む細胞群
201 ケラチノサイト
202 メラノサイト
21 第2セルカルチャーインサート
22 第2細胞培養容器
23 第3培地
24 第4培地
30 第2真皮モデル
300 組成物
31 第3セルカルチャーインサート
32 第3細胞培養容器
RD 光照射
dFB 光照射による損傷を受けた線維芽細胞
Claims (9)
- 有効成分として、線維芽細胞を含む、皮膚の色素沈着を治療または予防するための組成物であって、
ここで前記線維芽細胞が、前記皮膚の色素沈着部位に局在する線維芽細胞よりも損傷が少ない線維芽細胞であり、
前記組成物は、前記色素沈着部位またはその近傍の真皮組織に適用されることを特徴とする、組成物。 - 前記色素沈着が、老人性色素斑、脂漏性角化症、肝斑、雀卵斑および花弁状色素斑からなる群から1以上選択される疾患に由来する、請求項1に記載の組成物。
- 前記線維芽細胞が、生体の低露光部位または非露光部位の組織由来である、請求項1または2に記載の組成物。
- 前記線維芽細胞が、臀部、腹部、胸部、大腿部、上腕部、背部、歯肉、口腔粘膜、頭部、手掌、蹠および耳介後部からなる群から選択される組織由来である、請求項1~3のいずれか1項に記載の組成物。
- 前記線維芽細胞が、自家の線維芽細胞である、請求項1~4のいずれか1項に記載の組成物。
- 前記線維芽細胞が、多能性幹細胞または組織幹細胞から分化した線維芽細胞である、請求項1または2に記載の組成物。
- 前記線維芽細胞が、前記皮膚の色素沈着部位に局在する線維芽細胞よりも細胞老化マーカーの発現が低いことを特徴とする、請求項1~6のいずれか1項に記載の組成物。
- 前記細胞老化マーカーが、老化関連酸性β-ガラクトシダーゼ(SA-βgal)、細胞周期チェック機構関連因子および細胞老化関連分泌現象(Senescence-associated secretory phenotype(SASP))因子からなる群から1又は2以上選択される、請求項7に記載の組成物。
- 細胞治療によって適用されることを特徴とする、請求項1~8のいずれか1項に記載の組成物。
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| SG11202105105SA SG11202105105SA (en) | 2018-11-30 | 2019-11-29 | Composition for treating or preventing skin pigmentation |
| CN201980078342.6A CN113164783A (zh) | 2018-11-30 | 2019-11-29 | 用于治疗或预防皮肤的色素沉积的组合物 |
| EP19889388.5A EP3888756A4 (en) | 2018-11-30 | 2019-11-29 | COMPOSITION FOR THE TREATMENT OR PREVENTION OF SKIN PIGMENTATION |
| JP2020557882A JP7495354B2 (ja) | 2018-11-30 | 2019-11-29 | 皮膚の色素沈着を治療または予防するための組成物 |
| KR1020217015802A KR20210097117A (ko) | 2018-11-30 | 2019-11-29 | 피부의 색소 침착을 치료 또는 예방하기 위한 조성물 |
| US17/298,440 US20220023197A1 (en) | 2018-11-30 | 2019-11-29 | Composition for treating or preventing skin pigmentation |
| US18/225,377 US12357560B2 (en) | 2018-11-30 | 2023-07-24 | Composition for treating or preventing skin pigmentation |
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| US18/225,377 Division US12357560B2 (en) | 2018-11-30 | 2023-07-24 | Composition for treating or preventing skin pigmentation |
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| KR (1) | KR20210097117A (ja) |
| CN (1) | CN113164783A (ja) |
| SG (1) | SG11202105105SA (ja) |
| TW (1) | TW202038976A (ja) |
| WO (1) | WO2020111271A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022133729A (ja) * | 2021-03-02 | 2022-09-14 | 東亜化成株式会社 | 色素沈着抑制剤、皮膚用化粧料および皮膚外用剤 |
| JP2022184025A (ja) * | 2021-05-31 | 2022-12-13 | 株式会社 資生堂 | 皮膚モデルおよびその製造方法、ならびに皮膚の色素沈着を治療または予防するための因子の評価方法 |
| JP2022184021A (ja) * | 2021-05-31 | 2022-12-13 | 株式会社 資生堂 | 皮膚モデルおよびその製造方法、ならびに皮膚の色素沈着を治療または予防するための因子の評価方法 |
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- 2019-11-29 US US17/298,440 patent/US20220023197A1/en not_active Abandoned
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- 2019-11-29 SG SG11202105105SA patent/SG11202105105SA/en unknown
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022133729A (ja) * | 2021-03-02 | 2022-09-14 | 東亜化成株式会社 | 色素沈着抑制剤、皮膚用化粧料および皮膚外用剤 |
| JP2022184025A (ja) * | 2021-05-31 | 2022-12-13 | 株式会社 資生堂 | 皮膚モデルおよびその製造方法、ならびに皮膚の色素沈着を治療または予防するための因子の評価方法 |
| JP2022184021A (ja) * | 2021-05-31 | 2022-12-13 | 株式会社 資生堂 | 皮膚モデルおよびその製造方法、ならびに皮膚の色素沈着を治療または予防するための因子の評価方法 |
| JP7661133B2 (ja) | 2021-05-31 | 2025-04-14 | 株式会社 資生堂 | 皮膚モデルおよびその製造方法、ならびに皮膚の色素沈着を治療または予防するための因子の評価方法 |
| JP7733479B2 (ja) | 2021-05-31 | 2025-09-03 | 株式会社 資生堂 | 皮膚モデルおよびその製造方法、ならびに皮膚の色素沈着を治療または予防するための因子の評価方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20210097117A (ko) | 2021-08-06 |
| SG11202105105SA (en) | 2021-06-29 |
| JP7495354B2 (ja) | 2024-06-04 |
| US12357560B2 (en) | 2025-07-15 |
| JPWO2020111271A1 (ja) | 2021-10-14 |
| US20220023197A1 (en) | 2022-01-27 |
| US20230364006A1 (en) | 2023-11-16 |
| EP3888756A1 (en) | 2021-10-06 |
| CN113164783A (zh) | 2021-07-23 |
| TW202038976A (zh) | 2020-11-01 |
| EP3888756A4 (en) | 2022-07-13 |
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