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Palmer JW, Villavicencio KM, Idris M, Baranyk IJ, Polycarp N, Dawson AD, Weddle D, Pavan WJ, Filipp FV, Harris ML. Quiescence and aging of melanocyte stem cells and a novel association with programmed death-ligand 1. iScience 2024; 27:110908. [PMID: 39351197 PMCID: PMC11440800 DOI: 10.1016/j.isci.2024.110908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/17/2024] [Accepted: 09/05/2024] [Indexed: 10/04/2024] Open
Abstract
Cellular quiescence is a reversible and tightly regulated stem cell function essential for healthy aging. However, the elements that control quiescence during aging remain poorly defined. Using melanocyte stem cells (McSCs), we find that stem cell quiescence is neither passive nor static. For example, gene expression profiling of the transition from proliferating melanoblasts to quiescent melanocyte stem cells reveals tissue-specific regulation of the immune checkpoint protein PD-L1. In vitro, quiescence assays demonstrate that PD-L1 expression is a physiological attribute of quiescence in this cell lineage and reinforces this cell state. In vivo, a subset of quiescent McSCs is marked by PD-L1. While the overall number of McSCs decreases with age, PD-L1+ McSCs appear resistant to depletion. This phenomenon coincides with an aged McSC pool that exhibits a deeper transcriptomic quiescence. We predict that quiescent PD-L1+ stem cells retained with age may serve as cellular targets for reactivation.
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Affiliation(s)
- Joseph W Palmer
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Misgana Idris
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ian J Baranyk
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Nunaya Polycarp
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Alex D Dawson
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Dominique Weddle
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - William J Pavan
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Fabian V Filipp
- Cancer Systems Biology, Institute of Diabetes and Cancer, Helmholtz Zentrum München, Ingolstädter Landstraβe 1, 85764 München, Germany
- School of Life Sciences Weihenstephan, Technical University München, Maximus-von-Imhof-Forum 3, 85354 Freising, Germany
- Institute for Advanced Study, Technical University München, Lichtenbergstraße 2a, 85748 München, Germany
- Metaflux, San Diego, CA, USA
| | - Melissa L Harris
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA
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Apar R, Ye X, Lv X. Transcriptome-based screening and validation of key genes for wool color in cashmere goats. Genes Genomics 2024; 46:1239-1252. [PMID: 39259488 DOI: 10.1007/s13258-024-01562-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 08/20/2024] [Indexed: 09/13/2024]
Abstract
BACKGROUND Colored wool from cashmere goats is increasingly popular among consumers, but the transcriptomic differences between coat colors are poorly understood. OBJECTIVES This study aimed to screen for coat color regulation-associated genes in cashmere goats to ascertain their underlying molecular mechanisms. METHODS Transcriptomic sequencing of skin tissues from black (BC), brown (YC), and white cashmere (WC) goats was performed. Immunohistochemistry and western blotting were used to validate SLC24A4 and DCT expression, two essential genes identified for coat color determination. RESULTS We identified 6,518 differentially expressed genes (DEGs) in the BC vs. WC group (3,919 upregulated, 2,599 downregulated). Next, 5,593 DEGs were identified in the YC vs. WC group (3,629 upregulated, 1,964 downregulated). Finally, 4,538 DEGs were expressed in both groups, with 1,980 and 1,055 DEGs exclusively expressed in either group. Functions and pathways associated with hair color were enriched, including melanosomes, melanocyte migration, melanin biosynthesis processes and functions, and melanogenesis pathways. TYRP1, SLC24A4, PMEL, OCA2, and DCT were significantly upregulated in BC goat skin, while ASIP was significantly upregulated in YC skin. Additionally, KIT, POMC, SLC24A5, Wnt3a, and EDN3 were DEGs for different coat colors. Immunohistochemistry revealed SLC24A4 and DCT expression in dermal papillae, inner and outer root sheaths, and the hair follicle matrix. Western blotting showed that SLC24A4 protein levels were highest in BC goat skin. DCT protein levels were also highest in BC goat skin, albeit not significantly. CONCLUSION These results further our understanding of coat color regulation in cashmere goats, establishing a foundation for their molecular breeding.
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Affiliation(s)
- Remila Apar
- College of Life Sciences, Xinjiang Normal University, Urumqi, Xinjiang, 830000, China
- Institute of Animal Husbandry Quality Standards, Xinjiang Academy of Animal Science, Urumqi, Xinjiang, 830000, China
| | - Xiaofang Ye
- College of Life Sciences, Xinjiang Normal University, Urumqi, Xinjiang, 830000, China
| | - Xuefeng Lv
- Institute of Animal Husbandry Quality Standards, Xinjiang Academy of Animal Science, Urumqi, Xinjiang, 830000, China.
- Xinjiang Key Laboratory of Livestock Product Quality and Safety, Urumqi, Xinjiang, 830000, China.
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3
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Poonia K, Bhalla M. Premature Graying of Hair: A Comprehensive Review and Recent Insights. Indian Dermatol Online J 2024; 15:721-731. [PMID: 39359282 PMCID: PMC11444426 DOI: 10.4103/idoj.idoj_807_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/27/2024] [Accepted: 03/25/2024] [Indexed: 10/04/2024] Open
Abstract
Background Hair symbolizes well-being and self-expression, with graying occurring naturally among different racial groups at varying ages. Premature graying has psychological and societal impacts, influencing self-esteem and quality of life. Gray hair usually advances gradually and is permanent, with occasional reports of natural repigmentation. Premature graying of hair (PMGH) results from a complex interplay of genetic, environmental, and cellular factors. Materials and Methods Studies exploring links between gray hair and conditions such as osteopenia, hearing loss, smoking, obesity, dyslipidemia, and cardiovascular disease have yielded mixed results. Despite continuous research into the causes of gray hair, effective, evidence-based treatments are lacking and still need to be improved. Conclusion Herein, we reviewed the causes, mechanisms, risk factors, psychosocial effects, and emerging therapies for PMGH.
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Affiliation(s)
- Kavita Poonia
- Department of Dermatology, Venereology and Leprology, All India Institute of Medical Science, Bathinda, Punjab, India
| | - Mala Bhalla
- Department of Dermatology, Venereology and Leprology, Government Medical College and Hospital, Chandigarh, India
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Park CH, Oh YL, Shin JH, Park YJ. The Anti-Melanogenic Effects of Ganodermanontriol from the Medicinal Mushroom Ganoderma lucidum through the Regulation of the CREB and MAPK Signaling Pathways in B16F10 Cells. Molecules 2024; 29:3976. [PMID: 39203053 PMCID: PMC11357533 DOI: 10.3390/molecules29163976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 08/19/2024] [Accepted: 08/21/2024] [Indexed: 09/03/2024] Open
Abstract
Ganoderma lucidum, a member of the Basidiomycetes family, is attracting attention for its medicinal potential due to its biological activity and the presence of numerous bioactive compounds. Although it is known that extracts of this mushroom inhibit melanin production, there are few reports on a single substance associated with this effect. In this study, we identified ganodermanontriol (GT), a novel compound from G. lucidum, that effectively inhibited melanin biosynthesis in B16F10 cells. GT inhibits melanin production by suppressing the expression of cellular tyrosinase proteins and microphthalmia-related transcription factor (MITF). Furthermore, GT affects the phosphorylation of cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) and mitogen-activated protein kinase (MAPK) signaling molecules, which are involved in melanogenesis in B16F10 cells. Finally, the biosynthesis of GT and other substances by G. lucidum was evaluated using HPLC analysis. Thus, this study revealed the mechanism by which GT in G. lucidum inhibits melanin production in B16F10 cells, and these findings will contribute to promoting the potential use of this mushroom in the future.
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Affiliation(s)
- Che-Hwon Park
- Department of Medicinal Biosciences, Research Institute for Biomedical & Health Science, College of Biomedical and Health Science, Konkuk University, 268 Chungwon-daero, Chungju-si 27478, Republic of Korea; (C.-H.P.); (J.-H.S.)
| | - Youn-Lee Oh
- Mushroom Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, 92, Bisan-ro, Eumseong-gun 27709, Republic of Korea
| | - Ju-Hyeon Shin
- Department of Medicinal Biosciences, Research Institute for Biomedical & Health Science, College of Biomedical and Health Science, Konkuk University, 268 Chungwon-daero, Chungju-si 27478, Republic of Korea; (C.-H.P.); (J.-H.S.)
| | - Young-Jin Park
- Department of Medicinal Biosciences, Research Institute for Biomedical & Health Science, College of Biomedical and Health Science, Konkuk University, 268 Chungwon-daero, Chungju-si 27478, Republic of Korea; (C.-H.P.); (J.-H.S.)
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5
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Aggarwal A, Nasreen A, Sharma B, Sahoo S, Aswin K, Faruq M, Pandey R, Jolly MK, Singh A, Gokhale RS, Natarajan VT. Distinct melanocyte subpopulations defined by stochastic expression of proliferation or maturation programs enable a rapid and sustainable pigmentation response. PLoS Biol 2024; 22:e3002776. [PMID: 39163475 PMCID: PMC11364419 DOI: 10.1371/journal.pbio.3002776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 08/30/2024] [Accepted: 07/30/2024] [Indexed: 08/22/2024] Open
Abstract
The ultraviolet (UV) radiation triggers a pigmentation response in human skin, wherein, melanocytes rapidly activate divergent maturation and proliferation programs. Using single-cell sequencing, we demonstrate that these 2 programs are segregated in distinct subpopulations in melanocytes of human and zebrafish skin. The coexistence of these 2 cell states in cultured melanocytes suggests possible cell autonomy. Luria-Delbrück fluctuation test reveals that the initial establishment of these states is stochastic. Tracking of pigmenting cells ascertains that the stochastically acquired state is faithfully propagated in the progeny. A systemic approach combining single-cell multi-omics (RNA+ATAC) coupled to enhancer mapping with H3K27 acetylation successfully identified state-specific transcriptional networks. This comprehensive analysis led to the construction of a gene regulatory network (GRN) that under the influence of noise, establishes a bistable system of pigmentation and proliferation at the population level. This GRN recapitulates melanocyte behaviour in response to external cues that reinforce either of the states. Our work highlights that inherent stochasticity within melanocytes establishes dedicated states, and the mature state is sustained by selective enhancers mark through histone acetylation. While the initial cue triggers a proliferation response, the continued signal activates and maintains the pigmenting subpopulation via epigenetic imprinting. Thereby our study provides the basis of coexistence of distinct populations which ensures effective pigmentation response while preserving the self-renewal capacity.
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Affiliation(s)
- Ayush Aggarwal
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ayesha Nasreen
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Babita Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sarthak Sahoo
- Department of Bioengineering, Indian Institute of Science, Bangalore, India
| | - Keerthic Aswin
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mohammed Faruq
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Rajesh Pandey
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mohit K. Jolly
- Department of Bioengineering, Indian Institute of Science, Bangalore, India
| | - Abhyudai Singh
- Electrical and Computer Engineering, University of Delaware, Newark, Delaware, United States of America
- Biomedical Engineering, University of Delaware, Newark, Delaware, United States of America
| | - Rajesh S. Gokhale
- National Institute of Immunology, New Delhi, India
- Indian Institute of Science Education and Research Pune, Pune, India
| | - Vivek T. Natarajan
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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6
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He M, Lv X, Mwacharo JM, Li Y, Wang S, Sun W. MicroRNA-181a Targets GNAI2 and Affects the Proliferation and Induction Ability of Dermal Papilla Cells: The Potential Involvement of the Wnt/β-Catenin Signaling Pathway. Int J Mol Sci 2024; 25:7950. [PMID: 39063192 PMCID: PMC11277120 DOI: 10.3390/ijms25147950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
Wool is generated by hair follicles (HFs), which are crucial in defining the length, diameter, and morphology of wool fibers. However, the regulatory mechanism of HF growth and development remains largely unknown. Dermal papilla cells (DPCs) are a specialized cell type within HFs that play a crucial role in governing the growth and development of HFs. This study aims to investigate the proliferation and induction ability of ovine DPCs to enhance our understanding of the potential regulatory mechanisms underlying ovine HF growth and development. Previous research has demonstrated that microRNA-181a (miR-181a) was differentially expressed in skin tissues with different wool phenotypes, which indicated that miR-181a might play a crucial role in wool morphogenesis. In this study, we revealed that miR-181a inhibited the proliferation and induction ability of ovine DPCs by quantitative Real-time PCR (qRT-PCR), cell counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, and alkaline phosphatase staining. Then, we also confirmed G protein subunit alpha i2 (GNAI2) is a target gene of miR-181a by dual luciferase reporter assay, qRT-PCR, and Western blot, and that it could promote the proliferation and induction ability of ovine DPCs. In addition, GNAI2 could also activate the Wnt/β-Catenin signaling pathway in ovine DPCs. This study showed that miR-181a can inhibit the proliferation and induction ability of ovine DPCs by targeting GNAI2 through the Wnt/β-Catenin signaling pathway.
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Grants
- 32172689,BK20210810,20KJB230003,22KJA230001,PZCZ201739,32061143036,2022D01D47,G2022014148L,(2022) 2-323,KYCX23_3593 the National Natural Science Foundation of China (32172689), the Natural Science Foundation of Jiangsu Province (BK20210810), the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (20KJB230003 and 22KJA230001), Major New Var
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Affiliation(s)
- Mingliang He
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
| | - Xiaoyang Lv
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
| | - Joram M. Mwacharo
- International Centre for Agricultural Research in the Dry Areas, Addis Ababa 999047, Ethiopia
| | - Yutao Li
- CSIRO Agriculture and Food, 306 Carmody Rd, St. Lucia, Brisbane, QLD 4067, Australia
| | - Shanhe Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
| | - Wei Sun
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
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7
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Lambert KA, Clements CM, Mukherjee N, Pacheco TR, Shellman SX, Henen MA, Vögeli B, Goldstein NB, Birlea S, Hintzsche J, Caryotakis G, Tan AC, Zhao R, Norris DA, Robinson WA, Wang Y, VanTreeck JG, Shellman YG. SASH1 S519N Variant Links Skin Hyperpigmentation and Premature Hair Graying to Dysfunction of Melanocyte Lineage. J Invest Dermatol 2024:S0022-202X(24)00393-2. [PMID: 38848986 DOI: 10.1016/j.jid.2024.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 06/09/2024]
Abstract
A better understanding of human melanocyte (MC) and MC stem cell biology is essential for treating MC-related diseases. This study employed an inherited pigmentation disorder carrying the SASH1S519N variant in a Hispanic family to investigate SASH1 function in the MC lineage and the underlying mechanism for this disorder. We used a multidisciplinary approach, including clinical examinations, human cell assays, yeast 2-hybrid screening, and biochemical techniques. Results linked early hair graying to the SASH1S519N variant, a previously unrecognized clinical phenotype in hyperpigmentation disorders. In vitro, we identified SASH1 as a regulator in MC stem cell maintenance and discovered that TNKS2 is crucial for SASH1's role. In addition, the S519N variant is located in one of multiple tankyrase-binding motifs and alters the binding kinetics and affinity of the interaction. In summary, this disorder links both gain and loss of pigmentation in the same individual, hinting to accelerated aging in human MC stem cells. The findings offer insights into the roles of SASH1 and TNKS2 in MC stem cell maintenance and the molecular mechanisms of pigmentation disorders. We propose that a comprehensive clinical evaluation of patients with MC-related disorders should include an assessment and history of hair pigmentation loss.
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Affiliation(s)
- Karoline A Lambert
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Christopher M Clements
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Nabanita Mukherjee
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Theresa R Pacheco
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Samantha X Shellman
- Department of Computer Science, University of Colorado Boulder, Boulder, Colorado, USA
| | - Morkos A Henen
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Beat Vögeli
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Nathaniel B Goldstein
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Stanca Birlea
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA; Gates Institute, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | | | - Griffin Caryotakis
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA; Department of Biomedical Informatics, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Aik-Choon Tan
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA; Department of Biomedical Informatics, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Rui Zhao
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - David A Norris
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - William A Robinson
- Division of Medical Oncology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
| | - Yizhou Wang
- Department of Chemistry, College of Arts and Sciences, Emory University, Atlanta, Georgia, USA
| | - Jillian G VanTreeck
- College of Biological Sciences, University of Minnesota, Twin Cities, St. Paul, Minnesota, USA
| | - Yiqun G Shellman
- Department of Dermatology, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA; Gates Institute, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
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8
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Zhi J, Li F, Jiang X, Bai R. Thyroid receptor β: A promising target for developing novel anti-androgenetic alopecia drugs. Drug Discov Today 2024; 29:104013. [PMID: 38705510 DOI: 10.1016/j.drudis.2024.104013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/22/2024] [Accepted: 04/29/2024] [Indexed: 05/07/2024]
Abstract
Androgenetic alopecia (AGA) significantly impacts the self-confidence and mental well-being of people. Recent research has revealed that thyroid receptor β (TRβ) agonists can activate hair follicles and effectively stimulate hair growth. This review aims to comprehensively elucidate the specific mechanism of action of TRβ in treating AGA from various perspectives, highlighting its potential as a drug target for combating AGA. Moreover, this review provides a thorough summary of the research advances in TRβ agonist candidates with anti-AGA efficacy and outlines the structure-activity relationships (SARs) of TRβ agonists. We hope that this review will provide practical information for the development of effective anti-alopecia drugs.
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Affiliation(s)
- Jia Zhi
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, P.R. China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Feifan Li
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, P.R. China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Xiaoying Jiang
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, P.R. China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China.
| | - Renren Bai
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, P.R. China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China.
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9
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Yang W, Lv Y, Wang B, Luo S, Le Y, Tang M, Zhao R, Li Y, Kong X. Polydopamine Synergizes with Quercetin Nanosystem to Reshape the Perifollicular Microenvironment for Accelerating Hair Regrowth in Androgenetic Alopecia. NANO LETTERS 2024; 24:6174-6182. [PMID: 38739468 DOI: 10.1021/acs.nanolett.4c01843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Accumulated reactive oxygen species (ROS) and their resultant vascular dysfunction in androgenic alopecia (AGA) hinder hair follicle survival and cause permanent hair loss. However, safe and effective strategies to rescue hair follicle viability to enhance AGA therapeutic efficiency remain challenging. Herein, we fabricated a quercetin-encapsulated (Que) and polydopamine-integrated (PDA@QLipo) nanosystem that can reshape the perifollicular microenvironment to initial hair follicle regeneration for AGA treatment. Both the ROS scavenging and angiogenesis promotion abilities of PDA@QLipo were demonstrated. In vivo assays revealed that PDA@QLipo administrated with roller-microneedles successfully rejuvenated the "poor" perifollicular microenvironment, thereby promoting cell proliferation, accelerating hair follicle renewal, and facilitating hair follicle recovery. Moreover, PDA@QLipo achieved a higher hair regeneration coverage of 92.5% in the AGA mouse model than minoxidil (87.8%), even when dosed less frequently. The nanosystem creates a regenerative microenvironment by scavenging ROS and augmenting neovascularity for hair regrowth, presenting a promising approach for AGA clinical treatment.
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Affiliation(s)
- Weili Yang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yudie Lv
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Beibei Wang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Siyuan Luo
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yinpeng Le
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Mengcheng Tang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Ruibo Zhao
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yao Li
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Xiangdong Kong
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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Ma Y, Gong Y, Wu Y, Zhao Q, Fu R, Zhang X, Li Y, Zhi X. 1,25(OH) 2D 3 improves diabetic wound healing by modulating inflammation and promoting angiogenesis. J Steroid Biochem Mol Biol 2024; 239:106477. [PMID: 38340904 DOI: 10.1016/j.jsbmb.2024.106477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024]
Abstract
Vitamin D was found to regulate inflammatory response and angiogenesis, which were often impaired in diabetic wound healing. This study aimed to investigate the effects of 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] on diabetic wound healing both in vivo and in vitro. Diabetes was induced by high-fat diet combined with streptozotocin. After four weeks of establishing diabetic mouse model, full-thickness excisional wounds were created on their dorsal skin. Then 1,25(OH)2D3 was administered via intraperitoneal injection for 14 consecutive days. Human umbilical vein endothelial cells (HUVECs) were cultured with normal glucose, high glucose, high glucose plus 1,25(OH)2D3. Cell proliferation, migration, tube formation, and expression levels of relevant pathway components were measured. Intervention with 1,25(OH)2D3 significantly increased wound closure rates of diabetic mice. During the inflammatory phase, 1,25(OH)2D3 alleviated excessive inflammation and promoted the transition of macrophages from M1 to M2 phenotype. Regarding vascular endothelial function, 1,25(OH)2D3 significantly up-regulated eNOS protein expression and inhibited Vcam-1 mRNA expression in diabetic mice (P < 0.05). As for angiogenesis, 1,25(OH)2D3 markedly increased CD31-positive area, the protein and mRNA expression of VEGF, VEGFR2, PDGF, and PDGFRβ, as well as the mRNA expression of Bfgf and Egfr (P < 0.05). In vitro, 1,25(OH)2D3 restored impaired cell proliferation, migration, and tube formation induced by high-glucose, and up-regulated expression of angiogenesis-related factors. These protective effects might be mediated through PI3K/AKT/HIF-1α pathway. These findings suggested that 1,25(OH)2D3 accelerated diabetic wound healing by modulating inflammation, restoring vascular endothelial dysfunction, and promoting angiogenesis.
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Affiliation(s)
- Yiming Ma
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Yiting Gong
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Ying Wu
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Qiaofan Zhao
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Ruyu Fu
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Xiaoming Zhang
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Ye Li
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Xueyuan Zhi
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Suzhou Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China.
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11
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Chen J, Wang H, Wu S, Zhang A, Qiu Z, Huang P, Qu JY, Xu J. col1a2+ fibroblasts/muscle progenitors finetune xanthophore countershading by differentially expressing csf1a/1b in embryonic zebrafish. SCIENCE ADVANCES 2024; 10:eadj9637. [PMID: 38578990 PMCID: PMC10997200 DOI: 10.1126/sciadv.adj9637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 02/29/2024] [Indexed: 04/07/2024]
Abstract
Animals evolve diverse pigment patterns to adapt to the natural environment. Countershading, characterized by a dark-colored dorsum and a light-colored ventrum, is one of the most prevalent pigment patterns observed in vertebrates. In this study, we reveal a mechanism regulating xanthophore countershading in zebrafish embryos. We found that csf1a and csf1b mutants altered xanthophore countershading differently: csf1a mutants lack ventral xanthophores, while csf1b mutants have reduced dorsal xanthophores. Further study revealed that csf1a is expressed throughout the trunk, whereas csf1b is expressed dorsally. Ectopic expression of csf1a or csf1b in neurons attracted xanthophores into the spinal cord. Blocking csf1 signaling by csf1ra mutants disrupts spinal cord distribution and normal xanthophores countershading. Single-cell RNA sequencing identified two col1a2+ populations: csf1ahighcsf1bhigh muscle progenitors and csf1ahighcsf1blow fibroblast progenitors. Ablation of col1a2+ fibroblast and muscle progenitors abolished xanthophore patterns. Our study suggests that fibroblast and muscle progenitors differentially express csf1a and csf1b to modulate xanthophore patterning, providing insights into the mechanism of countershading.
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Affiliation(s)
- Jiahao Chen
- Department of Neurology, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510006, China
- Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Honggao Wang
- Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Shuting Wu
- Department of Neurobiology, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA
| | - Ao Zhang
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PRC
| | - Zhongkai Qiu
- Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Peng Huang
- Department of Biochemistry and Molecular Biology, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Jianan Y Qu
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Kowloon, China
| | - Jin Xu
- Department of Neurology, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510006, China
- Innovation Centre of Ministry of Education for Development and Diseases, School of Medicine, South China University of Technology, Guangzhou 510006, China
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12
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Paus R, Sevilla A, Grichnik JM. Human Hair Graying Revisited: Principles, Misconceptions, and Key Research Frontiers. J Invest Dermatol 2024; 144:474-491. [PMID: 38099887 DOI: 10.1016/j.jid.2023.09.276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/09/2023] [Accepted: 09/12/2023] [Indexed: 02/25/2024]
Abstract
Hair graying holds psychosocial importance and serves as an excellent model for studying human pigmentation and aging in an accessible miniorgan. Current evidence suggests that graying results from an interindividually varying mixture of cumulative oxidative and DNA damage, excessive mTORC1 activity, melanocyte senescence, and inadequate production of pigmentation-promoting factors in the hair matrix. Various regulators modulate this process, including genetic factors (DNA repair defects and IRF4 sequence variation, peripheral clock genes, P-cadherin signaling, neuromediators, HGF, KIT ligand secretion, and autophagic flux. This leads to reduced MITF- and tyrosinase-controlled melanogenesis, defective melanosome transfer to precortical matrix keratinocytes, and eventual depletion of hair follicle (HF) pigmentary unit (HFPU) melanocytes and their local progenitors. Graying becomes irreversible only when bulge melanocyte stem cells are also depleted, occurring later in this process. Distinct pigmentary microenvironments are created as the HF cycles: early anagen is the most conducive phase for melanocytic reintegration and activation, and only during anagen can the phenotype of hair graying and repigmentation manifest, whereas the HFPU disassembles during catagen. The temporary reversibility of graying is highlighted by several drugs and hormones that induce repigmentation, indicating potential target pathways. We advise caution in directly applying mouse model concepts, define major open questions, and discuss future human antigraying strategies.
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Affiliation(s)
- Ralf Paus
- Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; CUTANEON - Skin & Hair Innovations, Hamburg, Germany; Monasterium Laboratory, Münster, Germany.
| | - Alec Sevilla
- Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Department of Internal Medicine, Lakeland Regional Health, Lakeland, Florida, USA
| | - James M Grichnik
- Department of Dermatology & Cutaneous Surgery, University of South Florida, Tampa, Florida, USA
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13
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Kluge V, Kappelmann-Fenzl M, Fischer S, Zimmermann T, Pommer M, Kuphal S, Bosserhoff AK. Alternative Wnt-signaling axis leads to a break of oncogene-induced senescence. Cell Death Dis 2024; 15:166. [PMID: 38388496 PMCID: PMC10883971 DOI: 10.1038/s41419-024-06550-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
Oncogene-induced senescence (OIS) is an important process that suppresses tumor development, but the molecular mechanisms of OIS are still under investigation. It is known that BRAFV600E-mutated melanocytes can overcome OIS and develop melanoma, but the underlying mechanism is largely unknown. Using an established OIS model of primary melanocytes transduced with BRAFV600E, YAP activity was shown to be induced in OIS as well as in melanoma cells compared to that in normal epidermal melanocytes. This led to the assumption that YAP activation itself is not a factor involved in the disruption of OIS. However, its role and interaction partners potentially change. As Wnt molecules are known to be important in melanoma progression, these molecules were the focus of subsequent studies. Interestingly, activation of Wnt signaling using AMBMP resulted in a disruption of OIS in BRAFV600E-transduced melanocytes. Furthermore, depletion of Wnt6, Wnt10b or β-catenin expression in melanoma cells resulted in the induction of senescence. Given that melanoma cells do not exhibit canonical Wnt/β-catenin activity, alternative β-catenin signaling pathways may disrupt OIS. Here, we discovered that β-catenin is an interaction partner of YAP on DNA in melanoma cells. Furthermore, the β-catenin-YAP interaction changed the gene expression pattern from senescence-stabilizing genes to tumor-supportive genes. This switch is caused by transcriptional coactivation via the LEF1/TEAD interaction. The target genes with binding sites for LEF1 and TEAD are involved in rRNA processing and are associated with poor prognosis in melanoma patients. This study revealed that an alternative YAP-Wnt signaling axis is an essential molecular mechanism leading to OIS disruption in melanocytes.
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Affiliation(s)
- Viola Kluge
- Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Melanie Kappelmann-Fenzl
- Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Faculty of Computer Science, Deggendorf Institute of Technology, Dieter-Görlitz-Platz 1, 94469, Deggendorf, Germany
| | - Stefan Fischer
- Faculty of Computer Science, Deggendorf Institute of Technology, Dieter-Görlitz-Platz 1, 94469, Deggendorf, Germany
| | - Tom Zimmermann
- Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Michaela Pommer
- Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Silke Kuphal
- Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Anja-Katrin Bosserhoff
- Institute of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
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14
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Wang W, Wang H, Long Y, Li Z, Li J. Controlling Hair Loss by Regulating Apoptosis in Hair Follicles: A Comprehensive Overview. Biomolecules 2023; 14:20. [PMID: 38254620 PMCID: PMC10813359 DOI: 10.3390/biom14010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Apoptosis is a physiological process that occurs in all cell types of the human body, and it profoundly changes the fate of hair by affecting hair follicle cells. This review outlines the cellular changes, intrinsic biochemical characteristics, and mechanisms underlying apoptosis and summarizes the hair follicle life cycle, including development, cycle stages, and corresponding cellular changes. Finally, the relationship between apoptosis and the hair cycle is discussed and the significance of apoptosis in hair loss conditions and drug treatments is highlighted. Apoptosis induces cellular changes and exhibits distinctive properties through intricate signaling pathways. Hair follicles undergo cyclic periods of growth, regression, and dormancy. Apoptosis is closely correlated with the regression phase by triggering hair follicle cell death and shedding. Regulation of apoptosis in hair follicles plays an essential role in hair loss due to maladies and drug treatments. Mitigating apoptosis can enhance hair growth and minimize hair loss. A comprehensive understanding of the correlation between apoptosis and the hair cycle can facilitate the development of novel treatments to prevent hair loss and stimulate hair regeneration.
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Affiliation(s)
- Wuji Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Honglan Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Yunluan Long
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Zheng Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Jingjie Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
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15
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Hu S, Wang L. The potential role of ubiquitination and deubiquitination in melanogenesis. Exp Dermatol 2023; 32:2062-2071. [PMID: 37846904 DOI: 10.1111/exd.14953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/31/2023] [Accepted: 10/03/2023] [Indexed: 10/18/2023]
Abstract
Melanogenesis is a critical biochemical process in which melanocytes produce melanin, a crucial element involved in the formation of coat colour in mammals. According to several earlier studies, melanocytes' post-translational modifications of proteins primarily control melanogenesis. Among the many post-translational changes that can affect melanin production, ubiquitination and deubiquitination can keep melanin production going by changing how proteins that are related to melanin are broken down or kept stable. Ubiquitination and deubiquitination maintain ubiquitin homeostasis, which is a highly dynamic process in balance under the action of E3 ubiquitin ligase and deubiquitinating enzymes. However, the regulatory mechanisms underlying ubiquitination and deubiquitination in melanogenesis are yet to be thoroughly investigated. As a result, there has been a growing focus on exploring the potential correlation between melanogenesis, ubiquitination and deubiquitination. This study discusses the mechanisms of ubiquitination and deubiquitination in the context of melanogenesis, a crucial process for enhancing mammalian coat coloration and addressing pigment-related diseases.
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Affiliation(s)
- Shuaishuai Hu
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Lu Wang
- College of Life Science, Luoyang Normal University, Luoyang, China
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16
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Liu J, Chen Q. Clinical effect of stem cell transplantation combined with 308-nm excimer laser therapy for 56 cases of vitiligo. J Cosmet Dermatol 2023; 22:3276-3281. [PMID: 37366266 DOI: 10.1111/jocd.15833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/09/2023] [Accepted: 05/09/2023] [Indexed: 06/28/2023]
Abstract
OBJECTIVE To probe the clinical effect of stem cell transplantation in combination with 308-nm excimer laser therapy for vitiligo and to analyze its value in clinical application. METHODS A total of 56 patients with stable non-segmental vitiligo in different parts who were not cured by other therapies visiting our hospital from March 2019 to December 2021 were enrolled as study subjects. They were treated by stem cell transplantation combined with 308-nm excimer laser therapy. The treatment efficacy was observed and analyzed. RESULTS Among the 56 patients, 38 (67.85%) and 49 (87.5%) patients were cured at 6 and 12 months after treatment, respectively. CONCLUSION Stem cell transplantation combined with 308-nm excimer laser therapy for vitiligo achieves significant efficacy, with the cure rate far superior to that of other therapies for vitiligo. The therapy is worthy of popularization in the clinic.
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Affiliation(s)
- Jingwei Liu
- Nanhai Renshu International Skin Hospital (Hainan) Co., Ltd., Haikou, China
| | - Qingqing Chen
- Nanhai Renshu International Skin Hospital (Hainan) Co., Ltd., Haikou, China
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17
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Liu J, Liu S, Guo M, Yong M, Hu Z. Clinical validation and study of stem cell transplantation in treatment of vitiligo. Arch Dermatol Res 2023; 315:2983-2984. [PMID: 37676313 PMCID: PMC10615963 DOI: 10.1007/s00403-023-02692-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/20/2023] [Accepted: 07/27/2023] [Indexed: 09/08/2023]
Affiliation(s)
- Jingwei Liu
- Nanhai Renshu International Skin Hospital (Hainan) Co., Ltd., Haidian Sandong Road, Haikou, 570208, China.
| | - Shiyu Liu
- Nanhai Renshu International Skin Hospital (Hainan) Co., Ltd., Haidian Sandong Road, Haikou, 570208, China
| | - Min Guo
- Nanhai Renshu International Skin Hospital (Hainan) Co., Ltd., Haidian Sandong Road, Haikou, 570208, China
| | - Miao Yong
- Affiliated Hospital of Southern Medical University, Guangdong, 050100, China
| | - Zhiqi Hu
- Affiliated Hospital of Southern Medical University, Guangdong, 050100, China
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He M, Lv X, Cao X, Yuan Z, Getachew T, Li Y, Wang S, Sun W. SOX18 Promotes the Proliferation of Dermal Papilla Cells via the Wnt/β-Catenin Signaling Pathway. Int J Mol Sci 2023; 24:16672. [PMID: 38068994 PMCID: PMC10706180 DOI: 10.3390/ijms242316672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/15/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
SRY-box transcription factor 18 (SOX18) is known to play a crucial role in the growth and development of hair follicles (HF) in both humans and mice. However, the specific effect of SOX18 on sheep hair follicles remains largely unknown. In our previous study, we observed that SOX18 was specifically expressed within dermal papilla cells (DPCs) in ovine hair follicles, leading us to investigate its potential role in the growth of hair follicles in sheep. In the present study, we aimed to examine the effect of SOX18 in DPCs and preliminarily study its regulatory mechanism through RNA-seq. We initially found that the overexpression of SOX18 promoted the proliferation of DPCs compared to the negative control group, while the interference of SOX18 had the opposite effect. To gain further insight into the regulatory mechanism of SOX18, we conducted RNA-seq analysis after knocking down SOX18 in Hu sheep DPCs. The result showed that the Wnt/β-Catenin signaling pathway was involved in the growth process of DPC after SOX18 knockdown. Subsequently, we investigated the effect of SOX18 on the Wnt/β-Catenin signaling pathway in DPCs using TOP/FOP-flash, qRT-PCR, and Western blot (WB) analysis. Our data demonstrated that SOX18 could activate the Wnt/β-Catenin signaling pathway in DPCs. Additionally, we observed that SOX18 could rescue the proliferation of DPCs after inhibiting the Wnt/β-Catenin signaling pathway. These findings underscore the essential role of SOX18 as a functional molecule governing the proliferation of DPCs. Additionally, these findings also greatly enhance our understanding of the role of SOX18 in the proliferation of DPCs and the growth of wool in Hu sheep.
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Affiliation(s)
- Mingliang He
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyang Lv
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China (Z.Y.)
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
| | - Xiukai Cao
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China (Z.Y.)
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
| | - Zehu Yuan
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China (Z.Y.)
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
| | - Tesfaye Getachew
- International Centre for Agricultural Research in the Dry Areas, Addis Ababa 999047, Ethiopia
| | - Yutao Li
- CSIRO Agriculture and Food, 306 Carmody Rd, St Lucia, Brisbane, QLD 4067, Australia
| | - Shanhe Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
| | - Wei Sun
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China (Z.Y.)
- International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou University, Yangzhou 225009, China
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19
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Adav SS, Ng KW. Recent omics advances in hair aging biology and hair biomarkers analysis. Ageing Res Rev 2023; 91:102041. [PMID: 37634889 DOI: 10.1016/j.arr.2023.102041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/27/2023] [Accepted: 08/23/2023] [Indexed: 08/29/2023]
Abstract
Aging is a complex natural process that leads to a decline in physiological functions, which is visible in signs such as hair graying, thinning, and loss. Although hair graying is characterized by a loss of pigment in the hair shaft, the underlying mechanism of age-associated hair graying is not fully understood. Hair graying and loss can have a significant impact on an individual's self-esteem and self-confidence, potentially leading to mental health problems such as depression and anxiety. Omics technologies, which have applications beyond clinical medicine, have led to the discovery of candidate hair biomarkers and may provide insight into the complex biology of hair aging and identify targets for effective therapies. This review provides an up-to-date overview of recent omics discoveries, including age-associated alterations of proteins and metabolites in the hair shaft and follicle, and highlights the significance of hair aging and graying biomarker discoveries. The decline in hair follicle stem cell activity with aging decreased the regeneration capacity of hair follicles. Cellular senescence, oxidative damage and altered extracellular matrix of hair follicle constituents characterized hair follicle and hair shaft aging and graying. The review attempts to correlate the impact of endogenous and exogenous factors on hair aging. We close by discussing the main challenges and limitations of the field, defining major open questions and offering an outlook for future research.
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Affiliation(s)
- Sunil S Adav
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore; Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, 637141, Singapore.
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20
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Ji C, Ma J, Feng C, Zhu H, Gao Y, Huang J, Shen H, Wei Y. Promotion of Hair Regrowth in Androgenetic Alopecia with Supplemented Erzhi Wan: Exploring Its Mechanism Using Network Pharmacology and Molecular Docking. Clin Cosmet Investig Dermatol 2023; 16:2995-3022. [PMID: 37901149 PMCID: PMC10612515 DOI: 10.2147/ccid.s425295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/20/2023] [Indexed: 10/31/2023]
Abstract
Purpose Supplemented Erzhi Wan (SEZW) is a Traditional Chinese Medicine commonly used in the treatment of androgenetic alopecia (AGA). This study aims to verify the effectiveness of SEZW for the treatment of AGA in mice and explore the potential molecular mechanisms underlying its function using network pharmacology and molecular docking. Methods Forty mice were divided into five groups: Control, AGA-model, AGA-Positive, SEZW Low Dose, and SEZW High Dose. Hair regrowth in mice was evaluated by scoring hair on days 0, 14, and 28 post-treatment and weighing mouse hair on day 28 post-treatment. The targets of the active compounds of SEZW were obtained using the Traditional Chinese Medicine Database. AGA-related targets were downloaded from five databases. Then, the overlapping genes were identified. A protein-protein interaction network was constructed using the STRING database. Hub targets were determined through analysis. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed. Finally, molecular docking of active compounds and hub targets was performed. Results Hair regrowth in mice in the SEZW treatment groups was significantly enhanced relative to that in the AGA-model mice. A total of 59 potential drug-disease targets were identified. Based on the GO/KEGG analysis results, oxidative stress and gland development were identified as potential mechanisms of action of SEZW in AGA treatment. The PI3K-Akt and AGE-RAGE signaling pathways and seven hub targets were identified as the potential underlying mechanism of SEZW function. Molecular docking results showed that the most active SEZW compounds bind stably to several of the candidate disease targets. Conclusion SEZW is effective in the treatment of AGA in a mouse model. Combined with network pharmacological analysis, the potential mechanisms, signaling pathways, and hub targets of SEZW in the treatment of AGA were identified, providing new ideas for further studies.
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Affiliation(s)
- Chen Ji
- Department of Dermatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, People’s Republic of China
| | - Jun Ma
- Department of Dermatology, the Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, People’s Republic of China
| | - Chengcheng Feng
- Department of Dermatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, People’s Republic of China
| | - Hongliu Zhu
- Department of Dermatology, Jiangyin Hospital of Traditional Chinese Medicine, Wuxi, People’s Republic of China
| | - Yanwei Gao
- Department of Dermatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, People’s Republic of China
| | - Jun Huang
- Department of Dermatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, People’s Republic of China
| | - Hui Shen
- Department of Dermatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, People’s Republic of China
| | - Yuegang Wei
- First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, People’s Republic of China
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21
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Asz-Sigall D, Ortega-Springall MF, Smith-Pliego M, Rodríguez-Lobato E, Martinez-Velasco MA, Arenas R, Vincenzi C, Tosti A. White hair in alopecia areata: Clinical forms and proposed physiopathologic mechanisms. J Am Acad Dermatol 2023; 89:758-763. [PMID: 30630022 DOI: 10.1016/j.jaad.2018.12.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/16/2018] [Accepted: 12/18/2018] [Indexed: 11/25/2022]
Abstract
Alopecia areata (AA) is a common form of nonscarring hair loss. It is believed to be a consequence of an immune-mediated stimulus, probably involving autoreactive T cells against antigens present in the hair follicle. The exact antigen is still unknown; however, some authors have proposed that melanogenesis-associated molecules might trigger autoimmunity. Although transient white hair regrowth is a common and well-known situation in AA, there are other types of white hair phenomena in this context, including permanent white hair regrowth, sparing of white hair in a patchy pattern, or sparing in a diffuse pattern, giving the appearance of the so-called overnight graying phenomena or canitis subita. In this review, we aim to describe the different clinical aspects of white hair in AA, as well as the proposed pathophysiologic mechanisms involved in this phenomena.
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Affiliation(s)
- Daniel Asz-Sigall
- Oncodermatology and Trichology Clinic, National University of Mexico, Mexico City, Mexico.
| | | | - Mariam Smith-Pliego
- Dermatology Department, Dr. Manuel Gea Gonzalez General Hospital, Mexico City, Mexico
| | | | | | - Roberto Arenas
- Mycology Section, Dr. Manuel Gea Gonzalez General Hospital, Mexico City, Mexico
| | - Colombina Vincenzi
- Dermatology Division, Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Antonella Tosti
- Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, Florida
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22
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Cavalcante SB, Dos Santos Biscaino C, Kreusch MG, da Silva AF, Duarte RTD, Robl D. The hidden rainbow: the extensive biotechnological potential of Antarctic fungi pigments. Braz J Microbiol 2023; 54:1675-1687. [PMID: 37286926 PMCID: PMC10484874 DOI: 10.1007/s42770-023-01011-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 05/19/2023] [Indexed: 06/09/2023] Open
Abstract
The Antarctic continent is an extreme environment recognized mainly by its subzero temperatures. Fungi are ubiquitous microorganisms that stand out even among Antarctic organisms, primarily due to secondary metabolites production with several biological activities. Pigments are examples of such metabolites, which mainly occur in response to hostile conditions. Various pigmented fungi have been isolated from the Antarctic continent, living in the soil, sedimentary rocks, snow, water, associated with lichens, mosses, rhizospheres, and zooplankton. Physicochemical extreme environments provide a suitable setup for microbial pigment production with unique characteristics. The biotechnological potential of extremophiles, combined with concerns over synthetic pigments, has led to a great interest in natural pigment alternatives. Besides biological activities provided by fungal pigments for surviving in extreme environments (e.g., photoprotection, antioxidant activity, and stress resistance), it may present an opportunity for biotechnological industries. This paper reviews the biotechnological potential of Antarctic fungal pigments, with a detailed discussion over the biological role of fungal pigments, potential industrial production of pigments from extremophilic fungi, pigments toxicity, current market perspective and published intellectual properties related to pigmented Antarctic fungi.
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Affiliation(s)
- Sabrina Barros Cavalcante
- Department of Microbiology, Immunology and Parasitlogy, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Carla Dos Santos Biscaino
- Department of Microbiology, Immunology and Parasitlogy, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Marianne Gabi Kreusch
- Department of Microbiology, Immunology and Parasitlogy, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - André Felipe da Silva
- Bioprocess and Biotechnology Engineering Undergraduate Program, Federal University of Tocantins (UFT), Gurupi, TO, Brazil
| | - Rubens Tadeu Delgado Duarte
- Department of Microbiology, Immunology and Parasitlogy, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Diogo Robl
- Department of Microbiology, Immunology and Parasitlogy, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.
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23
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Lin SJ, Yue Z, Paus R. Clinical Pathobiology of Radiotherapy-Induced Alopecia: A Guide toward More Effective Prevention and Hair Follicle Repair. J Invest Dermatol 2023; 143:1646-1656. [PMID: 37294241 DOI: 10.1016/j.jid.2023.02.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 01/19/2023] [Accepted: 02/08/2023] [Indexed: 06/10/2023]
Abstract
Because hair follicles (HFs) are highly sensitive to ionizing radiation, radiotherapy-induced alopecia (RIA) is a core adverse effect of oncological radiotherapy. Yet, effective RIA-preventive therapy is unavailable because the underlying pathobiology remains underinvestigated. Aiming to revitalize interest in pathomechanism-tailored RIA management, we describe the clinical RIA spectrum (transient, persistent, progressive alopecia) and our current understanding of RIA pathobiology as an excellent model for studying principles of human organ and stem cell repair, regeneration, and loss. We explain that HFs respond to radiotherapy through two distinct pathways (dystrophic anagen or catagen) and why this makes RIA management so challenging. We discuss the responses of different HF cell populations and extrafollicular cells to radiation, their roles in HF repair and regeneration, and how they might contribute to HF miniaturization or even loss in persistent RIA. Finally, we highlight the potential of targeting p53-, Wnt-, mTOR-, prostaglandin E2-, FGF7-, peroxisome proliferator-activated receptor-γ-, and melatonin-associated pathways in future RIA management.
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Affiliation(s)
- Sung-Jan Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan; Department of Dermatology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan; Center for Frontier Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Zhicao Yue
- Department of Cell Biology and Medical Genetics, Shenzhen University Medical School, Shenzhen, China; International Cancer Center, Shenzhen University Medical School, Shenzhen, China; Guangdong Key Laboratory for Genome Stability and Disease Prevention, Shenzhen University Medical School, Shenzhen, China
| | - Ralf Paus
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Monasterium Laboratory, Münster, Germany; Cutaneon, Hamburg, Germany.
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24
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Feng Z, Qin Y, Jiang G. Reversing Gray Hair: Inspiring the Development of New Therapies Through Research on Hair Pigmentation and Repigmentation Progress. Int J Biol Sci 2023; 19:4588-4607. [PMID: 37781032 PMCID: PMC10535703 DOI: 10.7150/ijbs.86911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/19/2023] [Indexed: 10/03/2023] Open
Abstract
Hair graying is a common and visible sign of aging resulting from decreased or absence of melanogenesis. Although it has been established that gray hair greatly impacts people's mental health and social life, there is no effective countermeasure other than hair dyes. It has long been thought that reversal of gray hair on a large scale is rare. However, a recent study reported that individual gray hair darkening is a common phenomenon, suggesting the possibility of large-scale reversal of gray hair. In this article, we summarize the regulation mechanism of melanogenesis and review existing cases of hair repigmentation caused by several factors, including monoclonal antibodies drugs, tyrosine kinase inhibitors (TKIs), immunomodulators, other drugs, micro-injury, and tumors, and speculate on the mechanisms behind them. This review offers some insights for further research into the modulation of melanogenesis and presents a novel perspective on the development of clinical therapies, with emphasis on topical treatments.
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Affiliation(s)
- Zhaorui Feng
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Department of Dermatology, Xuzhou Medical University, Xuzhou, China
| | - Yi Qin
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Department of Dermatology, Xuzhou Medical University, Xuzhou, China
| | - Guan Jiang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Department of Dermatology, Xuzhou Medical University, Xuzhou, China
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25
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Casalou C, Mayatra JM, Tobin DJ. Beyond the Epidermal-Melanin-Unit: The Human Scalp Anagen Hair Bulb Is Home to Multiple Melanocyte Subpopulations of Variable Melanogenic Capacity. Int J Mol Sci 2023; 24:12809. [PMID: 37628992 PMCID: PMC10454394 DOI: 10.3390/ijms241612809] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/26/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
The visual appearance of humans is derived significantly from our skin and hair color. While melanin from epidermal melanocytes protects our skin from the damaging effects of ultraviolet radiation, the biological value of pigmentation in the hair follicle, particularly on the scalp, is less clear. In this study, we explore the heterogeneity of pigment cells in the human scalp anagen hair follicle bulb, a site conventionally viewed to be focused solely on pigment production for transfer to the hair shaft. Using c-KIT/CD117 microbeads, we isolated bulbar c-KIT-positive and c-KIT-negative melanocytes. While both subpopulations expressed MITF, only the c-KIT-positive fraction expressed SOX10. We further localized bulbar melanocyte subpopulations (expressing c-KIT, SOX10, MITF, and DCT) that exhibited distinct/variable expression of downstream differentiation-associated melanosome markers (e.g., gp100 and Melan-A). The localization of a second 'immature' SOX10 negative melanocyte population, which was c-KIT/MITF double-positive, was identified outside of the melanogenic zone in the most peripheral/proximal matrix. This study describes an approach to purifying human scalp anagen hair bulb melanocytes, allowing us to identify unexpected levels of melanocyte heterogeneity. The function of the more immature melanocytes in this part of the hair follicle remains to be elucidated. Could they be in-transit migratory cells ultimately destined to synthesize melanin, or could they contribute to the hair follicle in non-melanogenic ways?
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Affiliation(s)
- Cristina Casalou
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Jay M. Mayatra
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Desmond J. Tobin
- Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
- Conway Institute of Biomedical and Biomolecular Science, University College Dublin, D04 V1W8 Dublin, Ireland
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26
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Stüfchen I, Beyer F, Staebler S, Fischer S, Kappelmann M, Beckervordersandforth R, Bosserhoff AK. Sox9 regulates melanocytic fate decision of adult hair follicle stem cells. iScience 2023; 26:106919. [PMID: 37283806 PMCID: PMC10239701 DOI: 10.1016/j.isci.2023.106919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 03/02/2023] [Accepted: 05/14/2023] [Indexed: 06/08/2023] Open
Abstract
The bulge of hair follicles harbors Nestin+ (neural crest like) stem cells, which exhibit the potential to generate various cell types including melanocytes. In this study, we aimed to determine the role of Sox9, an important regulator during neural crest development, in melanocytic differentiation of those adult Nestin+ cells. Immunohistochemical analysis after conditional Sox9 deletion in Nestin+ cells of adult mice revealed that Sox9 is crucial for melanocytic differentiation of these cells and that Sox9 acts as a fate determinant between melanocytic and glial fate. A deeper understanding of factors that regulate fate decision, proliferation and differentiation of these stem cells provides new aspects to melanoma research as melanoma cells share many similarities with neural crest cells. In summary, we here show the important role of Sox9 in melanocytic versus glial fate decision of Nestin+ stem cells in the skin of adult mice.
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Affiliation(s)
- Isabel Stüfchen
- Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Felix Beyer
- Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian Staebler
- Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Stefan Fischer
- Faculty of Computer Science, Deggendorf Institute of Technology, Deggendorf, Germany
| | - Melanie Kappelmann
- Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
- Faculty of Computer Science, Deggendorf Institute of Technology, Deggendorf, Germany
| | | | - Anja K. Bosserhoff
- Institute of Biochemistry, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
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27
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Fernandes B, Cavaco-Paulo A, Matamá T. A Comprehensive Review of Mammalian Pigmentation: Paving the Way for Innovative Hair Colour-Changing Cosmetics. BIOLOGY 2023; 12:biology12020290. [PMID: 36829566 PMCID: PMC9953601 DOI: 10.3390/biology12020290] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/26/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023]
Abstract
The natural colour of hair shafts is formed at the bulb of hair follicles, and it is coupled to the hair growth cycle. Three critical processes must happen for efficient pigmentation: (1) melanosome biogenesis in neural crest-derived melanocytes, (2) the biochemical synthesis of melanins (melanogenesis) inside melanosomes, and (3) the transfer of melanin granules to surrounding pre-cortical keratinocytes for their incorporation into nascent hair fibres. All these steps are under complex genetic control. The array of natural hair colour shades are ascribed to polymorphisms in several pigmentary genes. A myriad of factors acting via autocrine, paracrine, and endocrine mechanisms also contributes for hair colour diversity. Given the enormous social and cosmetic importance attributed to hair colour, hair dyeing is today a common practice. Nonetheless, the adverse effects of the long-term usage of such cosmetic procedures demand the development of new methods for colour change. In this context, case reports of hair lightening, darkening and repigmentation as a side-effect of the therapeutic usage of many drugs substantiate the possibility to tune hair colour by interfering with the biology of follicular pigmentary units. By scrutinizing mammalian pigmentation, this review pinpoints key targetable processes for the development of innovative cosmetics that can safely change the hair colour from the inside out.
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Affiliation(s)
- Bruno Fernandes
- CEB—Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - Artur Cavaco-Paulo
- CEB—Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: (A.C.-P.); (T.M.); Tel.: +351-253-604-409 (A.C.-P.); +351-253-601-599 (T.M.)
| | - Teresa Matamá
- CEB—Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: (A.C.-P.); (T.M.); Tel.: +351-253-604-409 (A.C.-P.); +351-253-601-599 (T.M.)
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28
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Ruksiriwanich W, Linsaenkart P, Khantham C, Muangsanguan A, Sringarm K, Jantrawut P, Prom-u-thai C, Jamjod S, Yamuangmorn S, Arjin C, Rachtanapun P, Jantanasakulwong K, Phimolsiripol Y, Barba FJ, Sommano SR, Chutoprapat R, Boonpisuttinant K. Regulatory Effects of Thai Rice By-Product Extracts from Oryza sativa L. cv. Bue Bang 3 CMU and Bue Bang 4 CMU on Melanin Production, Nitric Oxide Secretion, and Steroid 5α-Reductase Inhibition. PLANTS (BASEL, SWITZERLAND) 2023; 12:653. [PMID: 36771737 PMCID: PMC9921347 DOI: 10.3390/plants12030653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
Alopecia and gray hair are common hair abnormalities affecting physical appearance and causing psychological problems. Chemical treatments partially restore hair disorders but have distressing side effects. Bioactive plant compounds constitute promising sources of potential medicinal substances instead of chemical agents, producing high side effects. In this study, we focused on the waste of local rice cultivars: Bue Bang 3 CMU (BB3CMU) and Bue Bang 4 CMU (BB4CMU) from the north of Thailand. The rice bran oil (RBO), defatted rice bran extract (DFRB), and rice husk (H) were determined for in vitro hair revitalization in melanin production, nitric oxide (NO) secretion, and steroid 5α-reductase inhibition. The results indicated that BB4CMU-RBO with high contents of iron, zinc, and free fatty acids showed a comparable induction of melanin production on melanocytes (130.18 ± 9.13% of control) to the standard drug theophylline with no significant difference (p > 0.05). This promising melanin induction could be related to activating the NO secretion pathway, with the NO secretion level at 1.43 ± 0.05 µM. In addition, BB4CMU-RBO illustrated a significant inhibitory effect on both steroid 5α-reductase genes (SRD5A) type 1 and type 2, which relates to its primary source of tocopherols. Hence, rice bran oil from the Thai rice variety BB4CMU could be applied as a promising hair revitalizing candidate, from natural resources, to help promote hair growth and re-pigmentation effects.
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Affiliation(s)
- Warintorn Ruksiriwanich
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Pichchapa Linsaenkart
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chiranan Khantham
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Anurak Muangsanguan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Korawan Sringarm
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pensak Jantrawut
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | | | - Sansanee Jamjod
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
| | | | - Chaiwat Arjin
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pornchai Rachtanapun
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Kittisak Jantanasakulwong
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Yuthana Phimolsiripol
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Francisco J. Barba
- Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain
| | - Sarana Rose Sommano
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai 50200, Thailand
- Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Romchat Chutoprapat
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10300, Thailand
| | - Korawinwich Boonpisuttinant
- Innovative Natural Products from Thai Wisdoms (INPTW), Faculty of Integrative Medicine, Rajamangala University of Technology Thanyaburi, Pathumthani 12130, Thailand
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29
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Wang R, Wang J, Gao H, Liao X, Ma C, Niu X. Composite double-layer microneedle loaded with traditional Chinese medicine for the treatment of androgenic alopecia. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2023. [DOI: 10.1016/j.medntd.2023.100216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
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30
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Jeong S, Na Y, Nam HM, Sung GY. Skin-on-a-chip strategies for human hair follicle regeneration. Exp Dermatol 2023; 32:13-23. [PMID: 36308297 DOI: 10.1111/exd.14699] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 01/06/2023]
Abstract
The number of hair loss patients increases every year, and hair loss treatment has several limitations, so research on hair is attracting attention recently. However, most current hair follicle research models are limited by their inability to replicate several key functions of the hair follicle microenvironment. To complement this, an in vitro culture system similar to the in vivo environment must be constructed. It is necessary to develop a hair-on-a-chip that implements a fully functional hair follicle model by reproducing the main characteristics of hair follicle morphogenesis and cycle. In this review, we summarize the gradation of hair follicle morphogenesis and the roles and mechanisms of molecular signals involved in the hair follicle cycle. In addition, we discuss research results of various in vitro organoid products and organ-on-a-chip-based hair follicle tissue chips for the treatment of alopecia and present future research and development directions.
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Affiliation(s)
- Subin Jeong
- Interdisciplinary Program of Nano-Medical Device Engineering, Hallym University, Chuncheon, South Korea.,Integrative Materials Research Institute, Hallym University, Chuncheon, South Korea
| | - Yoojin Na
- Interdisciplinary Program of Nano-Medical Device Engineering, Hallym University, Chuncheon, South Korea.,Integrative Materials Research Institute, Hallym University, Chuncheon, South Korea
| | - Hyeon-Min Nam
- Integrative Materials Research Institute, Hallym University, Chuncheon, South Korea.,Major in Materials Science and Engineering, Hallym University, Chuncheon, South Korea
| | - Gun Yong Sung
- Interdisciplinary Program of Nano-Medical Device Engineering, Hallym University, Chuncheon, South Korea.,Integrative Materials Research Institute, Hallym University, Chuncheon, South Korea.,Major in Materials Science and Engineering, Hallym University, Chuncheon, South Korea
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31
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Liang X, Lan J, Xu M, Qin K, Liu H, Sun G, Liu X, Chen Y, He Z. Impact of KIT Editing on Coat Pigmentation and Fresh Meat Color in Yorkshire Pigs. CRISPR J 2022; 5:825-842. [PMID: 36315201 DOI: 10.1089/crispr.2022.0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The white coat color of Yorkshire pigs is caused by the dominant white I allele, which has been associated with at least one copy of the 450-kb duplication encompassing the entire KIT gene and a splice mutation (G > A) at the first base of intron 17. The splice mutation in KIT has an adverse effect on pigmentation in mice. Therefore, removing the 450 kb duplications harboring the KIT copy with splice mutations is expected to affect Yorkshire pig pigmentation. In this study, we describe the use of a Yorkshire pig kidney cell strain with the I?/IBe-ed genotype, previously created by CRISPR-Cas9, as donor cells for somatic cell nuclear transfer to generate gene-edited Yorkshire pigs. The removal of the 450 kb duplications harboring the KIT copy with splice mutation did not alter the white coat color of Yorkshire pigs, which was confirmed by the absence of fully mature melanocytes and melanin accumulation in the hair follicles. Except for the improved transcription of tyrosinase, and slight increase in microphthalmia transcription factor and tyrosinase-related protein 1 protein expression, there was no significant impact of the removal of splice mutations on genes and signaling pathways (PI3K/AKT) involved in melanogenesis. However, the removal of the 450 kb duplications harboring the KIT copy with splice mutation substantially improved fresh meat color accompanied by significantly increased red blood cell number, which merits further investigation. Our study provides new insights into the role of structural mutations of the KIT gene in the formation of white coat color and erythropoiesis in Yorkshire pigs.
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Affiliation(s)
- Xinyu Liang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jin Lan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Meina Xu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Ke Qin
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Hongbo Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Guanjie Sun
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xiaohong Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Zuyong He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
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Roldan-Kalil J, Zueva L, Alves J, Tsytsarev V, Sanabria P, Inyushin M. Amount of Melanin Granules in Human Hair Defines the Absorption and Conversion to Heat of Light Energy in the Visible Spectrum. Photochem Photobiol 2022. [PMID: 36403200 DOI: 10.1111/php.13744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022]
Abstract
One of the known important functions of hair is protection from extensive sunlight. This protection is accomplished in large part due to natural hair pigmentation which is known to reflect the number of melanin granules (melanosomes) in the hair shaft, and melanin variants. Melanin takes in excessive light energy and converts it to heat in a process called absorption; heat is then dissipated into the environment as infrared radiation, thereby protecting the underlying skin. We used transmission electron microscopy (TEM) to visualize the melanosome counts in samples of human hair, and used thermal microscopy to measure the temperature changes of the samples when exposed to green and blue light lasers. In our experiments green light conversion to heat was highly correlated to the number of melanosomes, whereas blue light conversion to heat was less correlated, which may be because the reddish melanosomes it contains are less effective in absorbing energy from the blue spectrum of light. Anyway, we have shown the metals accumulation in the melanin can be easily visualized with TEM. We confirmed that the amount of melanin granules in human hair defines the conversion to heat of light energy in the visible spectrum.
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Affiliation(s)
| | - Lidia Zueva
- Universidad Central del Caribe School of Medicine, Bayamon, Puerto Rico
| | - Janaina Alves
- Universidad Central del Caribe School of Medicine, Bayamon, Puerto Rico
| | | | - Priscila Sanabria
- Universidad Central del Caribe School of Medicine, Bayamon, Puerto Rico
| | - Mikhail Inyushin
- Universidad Central del Caribe School of Medicine, Bayamon, Puerto Rico
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Villani A, Ferrillo M, Fabbrocini G, Ocampo-Garza SS, Scalvenzi M, Ruggiero A. Hair Aging and Hair Disorders in Elderly Patients. Int J Trichology 2022; 14:191-196. [PMID: 37034552 PMCID: PMC10075351 DOI: 10.4103/ijt.ijt_90_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 03/14/2022] [Accepted: 03/18/2022] [Indexed: 03/16/2023] Open
Abstract
Hair loss in elderly patients is a common complaint. It can be related to different conditions that affect patients' quality of life and represents a challenge for dermatologists. It affects both men and women during the aging process with an estimated percentage of balding after 65 years of age of 53% and 37%, respectively. Androgenetic alopecia, frontal fibrosing alopecia, senile alopecia, and erosive pustular dermatosis of the scalp are the hair diseases most frequently described in this age group. The objective of this review is to summarize the current knowledge about alopecia affecting elderly patients, differentiating between chronological hair aging signs and pathological changes, to help clinicians, offer an adequate management of these disorders to their patients.
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Affiliation(s)
- Alessia Villani
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Maria Ferrillo
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Gabriella Fabbrocini
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Sonia Sofía Ocampo-Garza
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
- Department of Dermatology, University Hospital “Dr. José Eleuterio González”, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Massimiliano Scalvenzi
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
| | - Angelo Ruggiero
- Department of Clinical Medicine and Surgery, Section of Dermatology, University of Naples Federico II, Naples, Italy
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Guo K, Wang L, Zhong Y, Gao S, Jing R, Ye J, Zhang K, Fu M, Hu Z, Zhao W, Xu N. Cucurbitacin promotes hair growth in mice by inhibiting the expression of fibroblast growth factor 18. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1104. [PMID: 36388783 PMCID: PMC9652544 DOI: 10.21037/atm-22-4423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/08/2022] [Indexed: 08/03/2023]
Abstract
BACKGROUND The inhibition of fibroblast growth factor 18 (FGF18) promotes the transition of hair follicles (HFs) from the telogen phase to the anagen phase. Cucurbitacin has been shown to have a good effect in promoting hair cell growth. This study explored the potential effect of cucurbitacin on hair growth and its effect on FGF18 expression in mice. METHODS Male C57BL/6J mice were randomly divided into the following two groups: (I) the vehicle group; and (II) the cucurbitacin group. Matrix cream and cucurbitacin cream were applied to the depilated skin on the back of the vehicle group mice and the cucurbitacin group mice, respectively. On days 3, 6, 9, 12, 15, and 18, the hair growth in the depilated dorsal skin of the mice was recorded with a digital camera and a HF detector, and the HF cycle status of the mice was observed by hematoxylin and eosin (H&E) staining. In addition, the level of FGF18 messenger ribonucleic acid (mRNA) in the dorsal skin was measured on days 15 and 18 by quantitative real-time polymerase chain reaction (qRT-PCR), while the level of FGF18 protein was measured by western blot and immunofluorescence staining. RESULTS The dorsal skin to which the cucurbitacin cream was applied began to darken on day 6 and grew hairs on day 9, which was 3 days earlier than the dorsal skin to which the matrix cream was applied. The H&E staining revealed a transition from the telogen phase to the anagen phase 3 days earlier for the cucurbitacin cream-treated skin than the matrix cream-treated skin. In addition, the skin treated with cucurbitacin cream also showed a significant decrease in FGF18 mRNA as seen by qRT-PCR, and reduced FGF18 protein levels as detected by western blot and immunofluorescence staining compared to the skin treated with matrix cream only. CONCLUSIONS Cucurbitacin significantly reduced the levels of FGF18 mRNA and protein in the dorsal skin of mice to accelerate the HFs to enter the anagen phase earlier, thereby promoting the regeneration of hair. Thus, cucurbitacin can be considered a new and valuable agent for the development of anti-hair loss products.
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Affiliation(s)
- Keke Guo
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Lusheng Wang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Yulan Zhong
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Shuang Gao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Rongrong Jing
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Jiabin Ye
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Kaini Zhang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Mengli Fu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Zhenlin Hu
- School of Medicine, Shanghai University, Shanghai, China
| | - Wengang Zhao
- Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Nuo Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
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Rotrosen ET, Lam J, Goldberg LJ. Supravenous Repigmentation of Hair Shafts in a Patient with Regrowing Alopecia Totalis: A Case Report and Hypothesis. Skin Appendage Disord 2022; 8:431-434. [PMID: 36161076 PMCID: PMC9485960 DOI: 10.1159/000524247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/12/2022] [Indexed: 09/03/2023] Open
Abstract
Introduction Alopecia areata (AA) is a type of nonscarring alopecia that has autoimmune etiology, in which the hair follicle, usually an immune-privileged site, becomes the target of attack. Alopecia totalis (AT) is a subset of AA in which patients completely lose hair on the scalp. Initial hair regrowth is often fine and without pigment. We present a case of AT in which pigmented hair grew only overlying superficial veins, a finding which has not been previously reported. Case Presentation An adult female with brown hair presented with AA that progressed to AT despite the use of triamcinolone ointment and topical 2% tofacitinib ointment. She was treated with nightly augmented betamethasone dipropionate 0.05% ointment under occlusion. Two months later, she noticed diffuse regrowth of thin hair on her scalp, most of which was depigmented. However, linear bands of darkly pigmented hairs were noted overlying superficial scalp veins. Discussion/Conclusion Loss of pigmentation and subsequent repigmentation of the hair shaft in regrowing AA is not entirely understood. Initial hair regrowth in AA tends to be fine and depigmented, although the hair will usually regain normal texture and color. Pigmentation following a vein suggests that local temperature may play a role, possibly augmented by corticosteroid induced reduced expression of inflammatory cytokines and endothelial release of the vasoconstrictor hormone endothelin, which stimulates melanogenesis.
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Affiliation(s)
| | - Jimmy Lam
- Boston University School of Medicine, Boston, Massachusetts, USA
- Department of Dermatology, Boston Medical Center, Boston, Massachusetts, USA
| | - Lynne J. Goldberg
- Boston University School of Medicine, Boston, Massachusetts, USA
- Department of Dermatology, Boston Medical Center, Boston, Massachusetts, USA
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36
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Yuan A, Gu Y, Bian Q, Wang R, Xu Y, Ma X, Zhou Y, Gao J. Conditioned media-integrated microneedles for hair regeneration through perifollicular angiogenesis. J Control Release 2022; 350:204-214. [PMID: 35961471 DOI: 10.1016/j.jconrel.2022.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 06/26/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022]
Abstract
Androgenetic alopecia (AGA), the most prevalent type of hair loss in clinic, is induced partly by insufficient perifollicular vascularization. Here we designed a dissolvable microneedles (MNs) patch that was loaded with conditioned media (CM) derived from hypoxia-pretreated mesenchymal stem cells, which contained elevated HIF-1α. The CM-integrated MNs patch (designated as CM-MNs) can puncture the stratum corneum and deliver the pro-angiogenic factors directly into skin in a one-step and minimally invasive manner. Meanwhile, the administration of CM-MNs induced a certain mechanical stimulation on the skin, which can also promote neovascularization. With the combined effects of the pro-angiogenic factors in CM and the mechanical stimulation induced by MNs, CM-MNs successfully boosted perifollicular vascularization, and activated hair follicle stem cells, thereby inducing notably faster hair regeneration at a lower administration frequency on AGA mouse model compared with minoxidil. Furthermore, we proved that the inhibition of perifollicular angiogenesis restrained the awakening of hair follicle stem cells, elucidating the tight correlation between perifollicular angiogenesis and the activation of hair follicle stem cells. The innovative integration of CM and MNs holds great promise for clinical AGA treatment and indicates that boosting angiogenesis around hair follicles is an effective strategy against AGA.
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Affiliation(s)
- Anran Yuan
- Department of Pharmacy, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, PR China; Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yueting Gu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China; College of Pharmacy, Inner Mongolia Medical University, Hohhot 010000, PR China
| | - Ruxuan Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yihua Xu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xiaolu Ma
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yanjun Zhou
- Zhejiang Huanling Pharmaceutical Technology Company, Jinhua 321000, PR China
| | - Jianqing Gao
- Department of Pharmacy, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, PR China; Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China; Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou 310058, PR China; Jiangsu Engineering Research Center for New-type External and Transdermal Preparations, Changzhou 213149, PR China.
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37
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Tan YF, Koay YS, Zulkifli RM, Hamid MA. In Vitro Hair Growth and Hair Tanning Activities of Mangosteen Pericarp Extract on Hair Dermal Papilla Cells. J Herb Med 2022. [DOI: 10.1016/j.hermed.2022.100594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Sox2 in the dermal papilla regulates hair follicle pigmentation. Cell Rep 2022; 40:111100. [PMID: 35858560 DOI: 10.1016/j.celrep.2022.111100] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 04/15/2022] [Accepted: 06/23/2022] [Indexed: 12/18/2022] Open
Abstract
Within the hair follicle (HF) niche, dermal papilla (DP) cells are well known for the hair induction capacity; however, DP cell signaling also regulates HF pigmentation. Here we describe how Sox2 in the DP is a key regulator of melanocyte signaling. To study the largely unknown regulatory role the DP has on hair pigmentation, we characterize leptin receptor (Lepr) expression in the skin and as a genetic tool to target the DP. Sox2 ablation in the DP results in a phenotypic switch from eumelanin to pheomelanin. Mechanistically, we describe a temporal upregulation of Agouti and downregulation of Corin, directly by Sox2 in the DP. We also show that bone morphogenic protein (BMP) signaling regulation by Sox2 is responsible for downregulating MC1R, Dct, and Tyr in melanocytes of Sox2 cKO mice. Thus, we demonstrate that Sox2 in the DP regulates not only the choice of hair pigment but also the overall HF pigment production.
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39
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Modeling human gray hair by irradiation as a valuable tool to study aspects of tissue aging. GeroScience 2022; 45:1215-1230. [PMID: 35612775 PMCID: PMC9886793 DOI: 10.1007/s11357-022-00592-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/11/2022] [Indexed: 02/03/2023] Open
Abstract
As one of the earliest and most visible phenomenon of aging, gray hair makes it a unique model system for investigating the mechanism of aging. Ionizing radiation successfully induces gray hair in mice, and also provides a venue to establish an organ-cultured human gray hair model. To establish a suitable organ-cultured human gray HF model by IR, which imitates gray hair in the elderly, and to explore the mechanisms behind the model. By detecting growth parameters, melanotic and senescence markers of the model, we found that the model of 5 Gy accords best with features of elderly gray hair. Then, we investigated the formation mechanisms of the model by RNA-sequencing. We demonstrated that the model of organ-cultured gray HFs after 5 Gy irradiation is closest to the older gray HFs. Moreover, the 5 Gy inhibited the expression of TRP-1, Tyr, Pmel17, and MITF in hair bulbs/ORS of HFs. The 5 Gy also significantly induced ectopically pigmented melanocytes and increased the expression of DNA damage and senescence in HFs. Finally, RNA-seq analysis of the model suggested that IR resulted in cell DNA damage, and the accumulation of oxidative stress in the keratinocytes. Oxidative stress and DNA damage caused cell dysfunction and decreased melanin synthesis in the gray HFs. We found that HFs irradiated at 5 Gy successfully constructed an appropriate aging HF model. This may provide a useful model for cost-effective and predictable treatment strategies to human hair graying and the process of aging.
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40
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Casalou C, Moreiras H, Mayatra JM, Fabre A, Tobin DJ. Loss of 'Epidermal Melanin Unit' Integrity in Human Skin During Melanoma-Genesis. Front Oncol 2022; 12:878336. [PMID: 35574390 PMCID: PMC9097079 DOI: 10.3389/fonc.2022.878336] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/09/2022] [Indexed: 12/13/2022] Open
Abstract
Cutaneous melanoma can be a most challenging neoplasm of high lethality, in part due to its extreme heterogeneity and characteristic aggressive and invasive nature. Indeed, its moniker 'the great masquerader' reflects that not all melanomas are created equal in terms of their originating cellular contexts, but also that melanoma cells in the malignant tumor can adopt a wide range of different cell states and variable organotropism. In this review, we focus on the early phases of melanomagenesis by discussing how the originating pigment cell of the melanocyte lineage can be influenced to embark on a wide range of tumor fates with distinctive microanatomical pathways. In particular, we assess how cells of the melanocyte lineage can differ by maturation status (stem cell; melanoblast; transiently amplifying cell; differentiated; post-mitotic; terminally-differentiated) as well as by micro-environmental niche (in the stratum basale of the epidermis; within skin appendages like hair follicle, eccrine gland, etc). We discuss how the above variable contexts may influence the susceptibility of the epidermal-melanin unit (EMU) to become unstable, which may presage cutaneous melanoma development. We also assess how unique features of follicular-melanin unit(s) (FMUs) can, by contrast, protect melanocytes from melanomagenesis. Lastly, we postulate how variable melanocyte fates in vitiligo, albinism, psoriasis, and alopecia areata may provide new insights into immune-/non immune-mediated outcomes for melanocytes in cutaneous melanin units.
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Affiliation(s)
- Cristina Casalou
- The Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Ireland
| | - Hugo Moreiras
- The Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Ireland
| | - Jay M Mayatra
- The Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Ireland
| | - Aurelie Fabre
- Department of Histopathology, St Vincent's University Hospital, Dublin, Ireland.,UCD School of Medicine, University College Dublin, Dublin, Ireland.,The Conway Institute of Biomedical and Biomolecular Science, University College Dublin, Dublin, Ireland
| | - Desmond J Tobin
- The Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Ireland.,The Conway Institute of Biomedical and Biomolecular Science, University College Dublin, Dublin, Ireland
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41
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Gao L, Chen EQ, Zhong HB, Xie J, Song HZ, Zhao XB, Lin LR, Liu Q, Wang S, Wu WY, Zhao RC, Liao XH. Large-scale isolation of functional dermal papilla cells using novel surface marker LEPR. Cytometry A 2022; 101:675-681. [PMID: 35524584 DOI: 10.1002/cyto.a.24569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/24/2022] [Accepted: 04/26/2022] [Indexed: 11/12/2022]
Abstract
Dermal papilla (DP) cells regulate hair follicle epithelial cells and melanocytes by secreting functional factors, playing a key role in hair follicle morphogenesis and hair growth. DP cells can reconstitute new hair follicles and induce hair regeneration, providing a potential therapeutic strategy for treating hair loss. However, current methods for isolating DP cells are either inefficient (physical microdissection) or only applied to genetically labeled mice. We systematically screened for the surface proteins specifically expressed in skin DP using mRNA expression databases. We identified two antibodies against receptors LEPR and SCARA5 which could specifically label and isolate DP cells by flow cytometry from mice back skin at the growth phase. The sorted LEPR+ cells maintained the DP characteristics after culturing in vitro, expressing DP marker alkaline phosphatase and functional factors including RSPO1/2 and EDN3, the three major DP secretory factors that regulate hair follicle epithelial cells and melanocytes. Furthermore, the low-passage LEPR+ DP cells could reconstitute hair follicles on nude mice using chamber graft assay when combined with epithelial stem cells. The method of isolating functional DP cells we established here lays a solid foundation for developing DP cell-based therapy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Lipeng Gao
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Eve Qian Chen
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Hong-Bing Zhong
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Jing Xie
- Department of Dermatology, the Third Affiliated Hospital of Shanghai University (Wenzhou People's Hospital), Wenzhou, China
| | - Hong-Zhi Song
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Xu-Bo Zhao
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Lin-Ran Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.,Department of Dermatology, Jing'an District Central Hospital, Shanghai, China
| | - Qingmei Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.,Department of Dermatology, Jing'an District Central Hospital, Shanghai, China
| | - Shihua Wang
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Wen-Yu Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.,Department of Dermatology, Jing'an District Central Hospital, Shanghai, China
| | - Robert Chunhua Zhao
- School of Life Sciences, Shanghai University, Shanghai, China.,Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Xin-Hua Liao
- School of Life Sciences, Shanghai University, Shanghai, China
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42
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Zheng Y, Zhou Y, Huang Y, Wang H, Guo H, Yuan B, Zhang J. Transcriptome sequencing of black and white hair follicles in the giant panda. Integr Zool 2022; 18:552-568. [PMID: 35500067 DOI: 10.1111/1749-4877.12652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With the completion of the draft assembly of the giant panda genome sequence, RNA sequencing technology has been widely used in genetic research on giant pandas. We used RNA-seq to examine black and white hair follicle samples from adult pandas. By comparison with the giant panda genome, 75 963 SNP loci were labeled, 2 426 differentially expressed genes were identified, and 2 029 new genes were discovered, among which 631 were functionally annotated. A cluster analysis of the differentially expressed genes showed that they were mainly related to the Wnt signaling pathway, ECM-receptor interaction, the p53 signaling pathway and ribosome processing. The enrichment results showed that there were significant differences in the regulatory networks of hair follicles with different colors during the transitional stage of hair follicle resting growth, which may play a regulatory role in melanin synthesis during growth. In conclusion, our results provide new insights and more data support for research on the color formation in giant pandas. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yi Zheng
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Yingmin Zhou
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in The Giant Panda National Park, China
| | - Yijie Huang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Haoqi Wang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Haixiang Guo
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Bao Yuan
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Jiabao Zhang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
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43
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Preston A, West C, McCollough M, Hosler GA. Melanocytic Panfolliculoma: A Case Report of a Rare Benign Follicular Tumor. Am J Dermatopathol 2022; 44:276-278. [PMID: 34966046 DOI: 10.1097/dad.0000000000002120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Panfolliculomas (PF) are rare, benign, follicular tumors that differentiate toward multiple components of the hair follicle, and several variants have been described. We present a case of a rare pigmented PF presenting on actinically damaged skin in an 83-year-old man, which was clinically concerning for malignancy. This tumor arose near an area of atypical squamous proliferation and has evidence of infundibular, outer root sheath, and matrical differentiation and foci of heavy melanin pigmentation and increased melanocytes. We propose the novel designation of "melanocytic PF," akin to melanocytic matricoma but with panfollicular differentiation.
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Affiliation(s)
- Allie Preston
- Department of Dermatology, Baylor Scott & White, Temple, TX
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Sevilla A, Chéret J, Slominski RM, Slominski AT, Paus R. Revisiting the role of melatonin in human melanocyte physiology: A skin context perspective. J Pineal Res 2022; 72:e12790. [PMID: 35133682 PMCID: PMC8930624 DOI: 10.1111/jpi.12790] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/24/2022] [Accepted: 02/02/2022] [Indexed: 11/30/2022]
Abstract
The evolutionarily ancient methoxyindoleamine, melatonin, has long perplexed investigators by its versatility of functions and mechanisms of action, which include the regulation of vertebrate pigmentation. Although first discovered through its potent skin-lightening effects in amphibians, melatonin's role in human skin and hair follicle pigmentation and its impact on melanocyte physiology remain unclear. Synthesizing our limited current understanding of this role, we specifically examine its impact on melanogenesis, oxidative biology, mitochondrial function, melanocyte senescence, and pigmentation-related clock gene activity, with emphasis on human skin, yet without ignoring instructive pointers from nonhuman species. Given the strict dependence of melanocyte functions on the epithelial microenvironment, we underscore that melanocyte responses to melatonin are best interrogated in a physiological tissue context. Current evidence suggests that melatonin and some of its metabolites inhibit both, melanogenesis (via reducing tyrosinase activity) and melanocyte proliferation by stimulating melatonin membrane receptors (MT1, MT2). We discuss whether putative melanogenesis-inhibitory effects of melatonin may occur via activation of Nrf2-mediated PI3K/AKT signaling, estrogen receptor-mediated and/or melanocortin-1 receptor- and cAMP-dependent signaling, and/or via melatonin-regulated changes in peripheral clock genes that regulate human melanogenesis, namely Bmal1 and Per1. Melatonin and its metabolites also accumulate in melanocytes where they exert net cyto- and senescence-protective as well as antioxidative effects by operating as free radical scavengers, stimulating the synthesis and activity of ROS scavenging enzymes and other antioxidants, promoting DNA repair, and enhancing mitochondrial function. We argue that it is clinically and biologically important to definitively clarify whether melanocyte cell culture-based observations translate into melatonin-induced pigmentary changes in a physiological tissue context, that is, in human epidermis and hair follicles ex vivo, and are confirmed by clinical trial results. After defining major open questions in this field, we close by suggesting how to begin answering them in clinically relevant, currently available preclinical in situ research models.
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Affiliation(s)
- Alec Sevilla
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jérémy Chéret
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Radomir M. Slominski
- Graduate Biomedical Sciences Program, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Andrzej T. Slominski
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Pathology Laboratory Service, Veteran Administration Medical Center at Birmingham, Birmingham, AL35294, USA
- Corresponding authors: Ralf Paus, MD, DSc: ; Andrzej T. Slominski, MD, PhD:
| | - Ralf Paus
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Monasterium Laboratory, Münster, Germany
- CUTANEON – Skin & Hair Innovations, Hamburg, Germany
- Corresponding authors: Ralf Paus, MD, DSc: ; Andrzej T. Slominski, MD, PhD:
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Pereira-Silva M, Martins AM, Sousa-Oliveira I, Ribeiro HM, Veiga F, Marto J, Paiva-Santos AC. Nanomaterials in hair care and treatment. Acta Biomater 2022; 142:14-35. [PMID: 35202853 DOI: 10.1016/j.actbio.2022.02.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 12/13/2022]
Abstract
Hair care and treatment has evolved significantly through the years as new formulations are continuously being explored in an attempt to meet the demand in cosmetic and medicinal fields. While standard hair care procedures include hair washing, aimed at hair cleansing and maintenance, as well as hair dyeing and bleaching formulations for hair embellishment, modern hair treatments are mainly focused on circumventing hair loss conditions, strengthening hair follicle properties and treat hair infestations. In this regard, active compounds (ACs) included in hair cosmetic formulations include a vast array of hair cleansing and hair dye molecules, and typical hair treatments include anti-hair loss ACs (e.g. minoxidil and finasteride) and anti-lice ACs (e.g. permethrin). However, several challenges still persist, as conventional AC formulations exhibit sub-optimal performance and some may present toxicity issues, calling for an improved design of formulations regarding both efficacy and safety. More recently, nano-based strategies encompassing nanomaterials have emerged as promising tailored approaches to improve the performance of ACs incorporated into hair cosmetics and treatment formulations. The interest in using these nanomaterials is based on account of their ability to: (1) increase stability, safety and biocompatibility of ACs; (2) maximize hair affinity, contact and retention, acting as versatile biointerfaces; (3) enable the controlled release of ACs in both hair and scalp, serving as prolonged AC reservoirs; besides offering (4) hair follicle targeting features attending to the possibility of surface tunability. This review covers the breakthrough of nanomaterials for hair cosmetics and hair treatment, focusing on organic nanomaterials (polymer-based and lipid-based nanoparticles) and inorganic nanomaterials (nanosheets, nanotubes and inorganic nanoparticles), as well as their applications, highlighting their potential as innovative multifunctional nanomaterials towards maximized hair care and treatment. STATEMENT OF SIGNIFICANCE: This manuscript is focused on reviewing the nanotechnological strategies investigated for hair care and treatment so far. While conventional formulations exhibit sub-optimal performance and some may present toxicity issues, the selection of improved and suitable nanodelivery systems is of utmost relevance to ensure a proper active ingredient release in both hair and scalp, maximize hair affinity, contact and retention, and provide hair follicle targeting features, warranting stability, efficacy and safety. This innovative manuscript highlights the advantages of nanotechnology-based approaches, particularly as tunable and versatile biointerfaces, and their applications as innovative multifunctional nanomaterials towards maximized hair care and treatment.
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Affiliation(s)
- Miguel Pereira-Silva
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Ana Margarida Martins
- Research Institute for Medicine (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Inês Sousa-Oliveira
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Helena Margarida Ribeiro
- Research Institute for Medicine (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Francisco Veiga
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Joana Marto
- Research Institute for Medicine (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Polo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.
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Chiu HY, Wang WH, Kuan CH, Wu YF, Tseng CJ, Huang WY, Wang SH, Lin SJ. Depilatory laser miniaturizes hair by inducing bystander dermal papilla cell necrosis through thermal diffusion. Lasers Surg Med 2022; 54:916-927. [PMID: 35289409 DOI: 10.1002/lsm.23533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 12/13/2021] [Accepted: 02/21/2022] [Indexed: 11/07/2022]
Abstract
OBJECTIVES Depilatory laser targeting melanin has been widely applied for the treatment of hypertrichosis. Both selective photothermolysis and thermal diffusion have been proposed for its effect, but the exact mechanism of permanent hair reduction remains unclear. In this study, we explore the role of thermal diffusion in depilatory laser-induced permanent hair loss and determine whether nonpigmented cells are injured by thermal diffusion. MATERIALS AND METHODS C57BL/6 mice in anagen and telogen were treated with alexandrite laser (wavelength 755 nm, pulse duration 3 milliseconds, fluence 12 J/cm2 , spot size 12 mm), respectively. Histological analysis, terminal deoxynucleotidyl transferase dUTP nick-end labeling assay, and transmission electron microscopic imaging were employed to evaluate the injury to hair follicle (HF) cells. The proliferation status of HF cells was examined by 5-bromo-2'-deoxyuridine pulse labeling. The number of HF stem cells was quantified by fluorescence-activated cell sorting. The size of the regenerated hair was determined by measuring its length and width. RESULTS We found that irradiating C57BL/6 mice in anagen with alexandrite laser led to hair miniaturization in the next anagen. In addition to thermal disruption of melanin-containing cells in the precortex region, we also detected necrosis of the adjacent nonpigmented dermal papilla cells due to thermal diffusion. Dermal papilla cells decreased by 24% after laser injury, while the number of bulge stem cells remained unchanged. When the laser was delivered to telogen HFs where no melanin was present adjacent to the dermal papilla, thermal necrosis and cell reduction were not detected in the dermal papilla and no hair miniaturization was observed. CONCLUSION Our results suggest that depilatory laser miniaturizes hair by inducing thermal necrosis of dermal papilla cells due to secondary thermal diffusion from melanin-containing precortex cells in the anagen hair bulbs.
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Affiliation(s)
- Hsien-Yi Chiu
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan.,Department of Dermatology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan.,Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan.,Department of Dermatology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wei-Hung Wang
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Chen-Hsiang Kuan
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Yueh-Feng Wu
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Chung-Jen Tseng
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Yen Huang
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Shiou-Han Wang
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
| | - Sung-Jan Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan.,Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan.,Department of Dermatology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan.,Brain Research Center, National Tsing Hua University, Hsinchu, Taiwan
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Chen J, Zheng Y, Hu C, Jin X, Chen X, Xiao Y, Wang C. Hair Graying Regulators Beyond Hair Follicle. Front Physiol 2022; 13:839859. [PMID: 35283766 PMCID: PMC8908028 DOI: 10.3389/fphys.2022.839859] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
Hair graying is an interesting physiological alteration associated with aging and certain diseases. The occurrence is due to depigmentation of the hair caused by depletion and dysfunction of melanocyte stem cells (MeSCs). However, what causes the depletion and dysfunction of MeSCs remains unclear. MeSCs reside in the hair follicle bulge which provides the appropriate niche for the homeostasis of various stem cells within hair follicle including MeSCs. In addition to local signaling from the cells composed of hair follicle, emerging evidences have shown that nerves, adipocytes and immune cells outside of hair follicle per se also play important roles in the regulation of MeSCs. Here, we review the recent studies on different cells in the MeSCs microenvironment beyond the hair follicle per se, discuss their function in regulating hair graying and potentially novel treatments of hair graying.
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Affiliation(s)
- Jing Chen
- Department of Breast Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang University – University of Edinburgh Institute, Zhejiang University, Haining, China
| | - Yixin Zheng
- Zhejiang University – University of Edinburgh Institute, Zhejiang University, Haining, China
| | - Chen Hu
- School of Medicine, Zhejiang University, Hangzhou, China
| | - Xuexiao Jin
- Institute of Immunology and Department of Rheumatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoping Chen
- Institute of Immunology and Department of Rheumatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ying Xiao
- Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Ying Xiao,
| | - Chaochen Wang
- Department of Breast Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang University – University of Edinburgh Institute, Zhejiang University, Haining, China
- *Correspondence: Chaochen Wang,
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48
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Kang MS, Jang SC, Park T, Kim MS, Park JS, Chi WJ, Kim SY. Synthesis and Melanogenesis Effect of 7,8-Dimethoxy-4-Methylcoumarin via MAPK Signaling-Mediated Microphthalmia-Associated Transcription Factor Upregulation. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221076647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Tyrosinase ultimately controls the melanogenesis rate of the skin, and tanning and haircare products generally induce the activation of tyrosinase. Moreover, various enzymes, including tyrosinase, tyrosinase-related protein 1 (TRP1), and tyrosinase-related protein 2 (TRP2), mediate melanogenesis in which microphthalmia-associated transcription factor (MITF) is a master regulator. One coumarin family member 7,8-dihydroxy-4-methylcoumarin (DHMC) shows extensive biological activities with beneficial health effects; however, it also induces cytotoxicity and its melanogenic effect has not been reported yet. Therefore, we first synthesized DHMC derivatives via methylation to obtain 7,8-dimethoxy-4-methylcoumairn (DMMC), and investigated the pro- or anti-melanogenic effects of DHMC and DMMC in B16-F10 melanoma cells as well as the underlying mechanism. DHMC showed cytotoxicity at all tested concentrations, whereas DMMC did not reduce cell viability, even at the high concentration. DMMC also drives the significant increase in intracellular melanin and tyrosinase activity. Moreover, DMMC induced MITF expression by significantly increasing tyrosinase activity, which activates the gene expression of TRP1 and TRP2. Western blotting confirmed that DMMC induced the activation of mitogen-activated protein kinase (MAPK) signaling by the phosphorylation of C-Jun N-terminal kinase (JNK), resulting in the increased melanin production and the decreased phosphorylation of protein kinase B. Collectively, this study showed the pro-melanogenic effect of DMMC and its potential as a safe tanning and dyeing agent.
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Affiliation(s)
| | | | - Taejin Park
- Sunmoon University, Chungnam, Republic of Korea
| | - Min-Seon Kim
- Korea Institute of Science and Technology (KIST), Gangwon-do, Republic of Korea
| | - Jin-Soo Park
- Korea Institute of Science and Technology (KIST), Gangwon-do, Republic of Korea
| | - Won-Jae Chi
- National Institute of Biological Resources, Incheon, Republic of South Korea
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Abreu CM, Marques AP. Recreation of a hair follicle regenerative microenvironment: Successes and pitfalls. Bioeng Transl Med 2022; 7:e10235. [PMID: 35079623 PMCID: PMC8780054 DOI: 10.1002/btm2.10235] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 12/19/2022] Open
Abstract
The hair follicle (HF) is an exquisite skin appendage endowed with cyclical regenerative capacity; however, de novo follicle formation does not naturally occur. Consequently, patients suffering from extensive skin damage or hair loss are deprived of the HF critical physiological and/or aesthetic functions, severally compromising skin function and the individual's psychosocial well-being. Translation of regenerative strategies has been prevented by the loss of trichogenic capacity that relevant cell populations undergo in culture and by the lack of suitable human-based in vitro testing platforms. Here, we provide a comprehensive overview of the major difficulties associated with HF regeneration and the approaches used to overcome these drawbacks. We describe key cellular requirements and discuss the importance of the HF extracellular matrix and associated signaling for HF regeneration. Finally, we summarize the strategies proposed so far to bioengineer human HF or hair-bearing skin models and disclose future trends for the field.
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Affiliation(s)
- Carla M. Abreu
- 3B's Research Group, I3Bs ‐ Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAvePark–Parque de Ciência e Tecnologia, University of MinhoGuimarãesPortugal
- ICVS/3B's–PT Government Associate LaboratoryGuimarãesPortugal
| | - Alexandra P. Marques
- 3B's Research Group, I3Bs ‐ Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAvePark–Parque de Ciência e Tecnologia, University of MinhoGuimarãesPortugal
- ICVS/3B's–PT Government Associate LaboratoryGuimarãesPortugal
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50
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Slominski RM, Sarna T, Płonka PM, Raman C, Brożyna AA, Slominski AT. Melanoma, Melanin, and Melanogenesis: The Yin and Yang Relationship. Front Oncol 2022; 12:842496. [PMID: 35359389 PMCID: PMC8963986 DOI: 10.3389/fonc.2022.842496] [Citation(s) in RCA: 119] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 01/24/2022] [Indexed: 12/22/2022] Open
Abstract
Melanin pigment plays a critical role in the protection against the harmful effects of ultraviolet radiation and other environmental stressors. It is produced by the enzymatic transformation of L-tyrosine to dopaquinone and subsequent chemical and biochemical reactions resulting in the formation of various 5,6-dihydroxyindole-2-carboxylic acid (DHICA) and 5,6-dihydroxyindole (DHI) oligomers-main constituents of eumelanin, and benzothiazine and benzothiazole units of pheomelanin. The biosynthesis of melanin is regulated by sun exposure and by many hormonal factors at the tissue, cellular, and subcellular levels. While the presence of melanin protects against the development of skin cancers including cutaneous melanoma, its presence may be necessary for the malignant transformation of melanocytes. This shows a complex role of melanogenesis in melanoma development defined by chemical properties of melanin and the nature of generating pathways such as eu- and pheomelanogenesis. While eumelanin is believed to provide radioprotection and photoprotection by acting as an efficient antioxidant and sunscreen, pheomelanin, being less photostable, can generate mutagenic environment after exposure to the short-wavelength UVR. Melanogenesis by itself and its highly reactive intermediates show cytotoxic, genotoxic, and mutagenic activities, and it can stimulate glycolysis and hypoxia-inducible factor 1-alpha (HIF-1α) activation, which, combined with their immunosuppressive effects, can lead to melanoma progression and resistance to immunotherapy. On the other hand, melanogenesis-related proteins can be a target for immunotherapy. Interestingly, clinicopathological analyses on advanced melanomas have shown a negative correlation between tumor pigmentation and diseases outcome as defined by overall survival and disease-free time. This indicates a "Yin and Yang" role for melanin and active melanogenesis in melanoma development, progression, and therapy. Furthermore, based on the clinical, experimental data and diverse effects of melanogenesis, we propose that inhibition of melanogenesis in advanced melanotic melanoma represents a realistic adjuvant strategy to enhance immuno-, radio-, and chemotherapy.
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Affiliation(s)
- Radomir M Slominski
- Graduate Biomedical Sciences Program, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Tadeusz Sarna
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Przemysław M Płonka
- Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Chander Raman
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Anna A Brożyna
- Department of Human Biology, Institute of Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Toruń, Poland
| | - Andrzej T Slominski
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, United States.,Pathology Laboratory Service, Veteran Administration Medical Center at Birmingham, Birmingham, AL, United States
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