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Li Y, Dong T, Wan S, Xiong R, Jin S, Dai Y, Guan C. Application of multi-omics techniques to androgenetic alopecia: Current status and perspectives. Comput Struct Biotechnol J 2024; 23:2623-2636. [PMID: 39021583 PMCID: PMC11253216 DOI: 10.1016/j.csbj.2024.06.026] [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: 03/10/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/20/2024] Open
Abstract
The rapid advancement of sequencing technologies has enabled the generation of vast datasets, allowing for the in-depth analysis of sequencing data. This analysis has facilitated the validation of novel pathogenesis hypotheses for understanding and treating diseases through ex vivo and in vivo experiments. Androgenetic alopecia (AGA), a common hair loss disorder, has been a key focus of investigators attempting to uncover its underlying mechanisms. Abnormal changes in mRNA, proteins, and metabolites have been identified in individuals with AGA, and future developments in sequencing technologies may reveal new biomarkers for AGA. By integrating multiple omics analysis datasets such as genomics, transcriptomics, proteomics, and metabolomics-along with clinical phenotype data-we can achieve a comprehensive understanding of the molecular underpinnings of AGA. This review summarizes the data-mining studies conducted on various omics analysis datasets as related to AGA that have been adopted to interpret the biological data obtained from different omics layers. We herein discuss the challenges of integrative omics analyses, and suggest that collaborative multi-omics studies can enhance the understanding of the complete pathomechanism(s) of AGA by focusing on the interaction networks comprising DNA, RNA, proteins, and metabolites.
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Affiliation(s)
- Yujie Li
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
| | - Tingru Dong
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
| | - Sheng Wan
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Renxue Xiong
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Shiyu Jin
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
| | - Yeqin Dai
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Cuiping Guan
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
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Zhu B, Liang L, Hui L, Lu Y. Exploring the role of dermal sheath cells in wound healing and fibrosis. Wound Repair Regen 2024. [PMID: 39129718 DOI: 10.1111/wrr.13206] [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: 02/22/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/13/2024]
Abstract
Wound healing is a complex, dynamic process involving the coordinated interaction of diverse cell types, growth factors, cytokines, and extracellular matrix components. Despite emerging evidence highlighting their importance, dermal sheath cells remain a largely overlooked aspect of wound healing research. This review explores the multifunctional roles of dermal sheath cells in various phases of wound healing, including modulating inflammation, aiding in proliferation, and contributing to extracellular matrix remodelling. Special attention is devoted to the paracrine effects of dermal sheath cells and their role in fibrosis, highlighting their potential in improving healing outcomes, especially in differentiating between hairy and non-hairy skin sites. By drawing connections between dermal sheath cells activity and wound healing outcomes, this work proposes new insights into the mechanisms of tissue regeneration and repair, marking a step forward in our understanding of wound healing processes.
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Affiliation(s)
- Bing Zhu
- Translational Medicine Engineering Research Center of Inner Mongolia Autonomous Region, affiliated with Baotou Central Hospital, Baotou, China
| | - Lu Liang
- Translational Medicine Engineering Research Center of Inner Mongolia Autonomous Region, affiliated with Baotou Central Hospital, Baotou, China
| | - Lihua Hui
- Burn Research Institute of Inner Mongolia Autonomous Region, affiliated with Inner Mongolia Baogang Hospital, Baotou, China
| | - Yaojun Lu
- Translational Medicine Engineering Research Center of Inner Mongolia Autonomous Region, affiliated with Baotou Central Hospital, Baotou, China
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Kim HY, Kim HS. Podoplanin depletion in tonsil-derived mesenchymal stem cells induces cellular senescence via regulation of the p16 Ink4a/Rb pathway. Cell Commun Signal 2024; 22:323. [PMID: 38867259 PMCID: PMC11167904 DOI: 10.1186/s12964-024-01705-8] [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: 04/15/2024] [Accepted: 06/06/2024] [Indexed: 06/14/2024] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are widely used in the development of therapeutic tools in regenerative medicine. However, their quality decreases during in vitro expansion because of heterogeneity and acquired cellular senescence. We investigated the potential role of podoplanin (PDPN) in minimizing cellular senescence and maintaining the stemness of tonsil-derived MSCs (TMSCs). METHODS TMSCs were isolated from human tonsil tissues using an enzymatic method, expanded, and divided into two groups: early-passaged TMSCs, which were cultured for 3-7 passages, and late-passaged TMSCs, which were passaged more than 15 times. The TMSCs were evaluated for cellular senescence and MSC characteristics, and PDPN-positive and -negative cells were identified by fluorescence-activated cell sorting. In addition, MSC features were assessed in siRNA-mediated PDPN-depleted TMSCs. RESULTS TMSCs, when passaged more than 15 times and becoming senescent, exhibited reduced proliferative rates, telomere length, pluripotency marker (NANOG, OCT4, and SOX2) expression, and tri-lineage differentiation potential (adipogenesis, chondrogenesis, or osteogenesis) compared to cells passaged less than five times. Furthermore, PDPN protein levels significantly decreased in a passage-dependent manner. PDPN-positive cells maintained their stemness characteristics, such as MSC-specific surface antigen (CD14, CD34, CD45, CD73, CD90, and CD105) and pluripotency marker expression, and exhibited higher tri-lineage differentiation potential than PDPN-negative cells. SiRNA-mediated silencing of PDPN led to decreased cell-cycle progression, proliferation, and migration, indicating the significance of PDPN as a preliminary senescence-related factor. These reductions directly contributed to the induction of cellular senescence via p16Ink4a/Rb pathway activation. CONCLUSION PDPN may serve as a novel biomarker to mitigate cellular senescence in the clinical application of MSCs.
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Affiliation(s)
- Ha Yeong Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul, 07985, Republic of Korea
| | - Han Su Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Ewha Womans University, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul, 07985, Republic of Korea.
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Fatehi A, Sadat M, Fayyad M, Tang J, Han D, Rogers IM, Taylor D. Efficient Generation of Pancreatic Progenitor Cells from Induced Pluripotent Stem Cells Derived from a Non-Invasive and Accessible Tissue Source-The Plucked Hair Follicle. Cells 2024; 13:1010. [PMID: 38920642 PMCID: PMC11202038 DOI: 10.3390/cells13121010] [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: 04/20/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/27/2024] Open
Abstract
The advent of induced pluripotent stem cell (iPSC) technology has brought about transformative advancements in regenerative medicine, offering novel avenues for disease modeling, drug testing, and cell-based therapies. Patient-specific iPSC-based treatments hold the promise of mitigating immune rejection risks. However, the intricacies and costs of producing autologous therapies present commercial challenges. The hair follicle is a multi-germ layered versatile cell source that can be harvested at any age. It is a rich source of keratinocytes, fibroblasts, multipotent stromal cells, and the newly defined Hair Follicle-Associated Pluripotent Stem Cells (HAP). It can also be obtained non-invasively and transported via regular mail channels, making it the ideal starting material for an autologous biobank. In this study, cryopreserved hair follicle-derived iPSC lines (HF-iPS) were established through integration-free vectors, encompassing a diverse cohort. These genetically stable lines exhibited robust expression of pluripotency markers, and showcased tri-lineage differentiation potential. The HF-iPSCs effectively differentiated into double-positive cKIT+/CXCR4+ definitive endoderm cells and NKX6.1+/PDX1+ pancreatic progenitor cells, affirming their pluripotent attributes. We anticipate that the use of plucked hair follicles as an accessible, non-invasive cell source to obtain patient cells, in conjunction with the use of episomal vectors for reprogramming, will improve the future generation of clinically applicable pancreatic progenitor cells for the treatment of Type I Diabetes.
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Affiliation(s)
- Amatullah Fatehi
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada; (A.F.); (M.S.)
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada;
- Acorn Biolabs Inc., Toronto, ON M5G 2N2, Canada; (M.F.); (D.H.)
| | - Marwa Sadat
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada; (A.F.); (M.S.)
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada;
| | - Muneera Fayyad
- Acorn Biolabs Inc., Toronto, ON M5G 2N2, Canada; (M.F.); (D.H.)
| | - Jean Tang
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada;
- Department of Obstetrics and Gynaecology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Duhyun Han
- Acorn Biolabs Inc., Toronto, ON M5G 2N2, Canada; (M.F.); (D.H.)
| | - Ian M. Rogers
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada; (A.F.); (M.S.)
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada;
- Department of Obstetrics and Gynaecology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Drew Taylor
- Acorn Biolabs Inc., Toronto, ON M5G 2N2, Canada; (M.F.); (D.H.)
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Kamishima T, Hirabe C, Myint KZY, Taguchi J. Divergent progression pathways in male androgenetic alopecia and female pattern hair loss: Trichoscopic perspectives. J Cosmet Dermatol 2024; 23:1828-1839. [PMID: 38189587 DOI: 10.1111/jocd.16177] [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: 10/09/2023] [Revised: 11/22/2023] [Accepted: 12/28/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Despite similarities in progressive miniaturization of hair follicles and transition of terminal hairs to vellus hairs, insufficient trichoscopic comparisons between male androgenetic alopecia (MAGA) and female pattern hair loss (FPHL) hinder our ability to select effective treatments. AIM Our study aimed to explore gender-specific trichoscopic characteristics of MAGA and FPHL, while formulating hypotheses regarding the progression of these conditions across clinical stages. METHODS We classified 126 male MAGA subjects using Hamilton-Norwood Classification and 57 FPHL subjects using adopted Sinclair Scale. Subsequently, we analyzed nine trichoscopic factors divided into three categories: hair-diameter related, hair-number per follicular unit related, and hair density related factors. RESULTS Of the nine quantitative trichoscopic factors, hair-diameter and hair-number per follicular unit showed strong correlations with clinical stages in both genders. Hair density, a common trichoscopic factor for hair loss evaluation, weakly correlated with clinical stages in FPHL, but not at all in MAGA. In addition, MAGA was characterized by a progressive reduction in hair-diameter, followed by a reduction in hair-number per follicular unit. FPHL, on the contrary, showed the opposite progression. CONCLUSIONS Trichoscopic factors vary with disease severity in a gender-specific manner. Our research highlights that MAGA and FPHL involve two distinct streams: hair-diameter decreasing by hair follicle miniaturization (Stream 1), and hair-number per follicular unit decreasing by hair follicle tri-lineage niche dysfunction (Stream 2). MAGA typically starts from Stream 1 to Stream 2, while FPHL starts from Stream 2. These diverse progression pathways underscore the importance of personalized treatment approaches.
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Affiliation(s)
- Tomoko Kamishima
- Department of Dermatology, Tokyo Midtown Skin/Aesthetic Clinic Noage, Tokyo, Japan
| | - Chie Hirabe
- Department of Dermatology, Tokyo Midtown Skin/Aesthetic Clinic Noage, Tokyo, Japan
| | - Khin Zay Yar Myint
- Tokyo Midtown Center for Advanced Medical Science and Technology, Tokyo, Japan
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Iwabuchi T, Ogura K, Hagiwara K, Ueno S, Kitamura H, Yamanishi H, Tsunekawa Y, Kiso A. Ginsenosides in Panax ginseng Extract Promote Anagen Transition by Suppressing BMP4 Expression and Promote Human Hair Growth by Stimulating Follicle-Cell Proliferation. Biol Pharm Bull 2024; 47:240-244. [PMID: 38246611 DOI: 10.1248/bpb.b23-00276] [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: 01/23/2024]
Abstract
Studies showing that Panax ginseng promotes hair growth have largely been conducted using mice; there are few reports on how P. ginseng affects human hair growth. In particular, little is known about its effect on the telogen to anagen transition. To determine the effect of P. ginseng on human hair growth and the transition from the telogen to the anagen phase. The effects of P. ginseng extract (PGE) and the three major ginsenoside components, Rb1, Rg1, and Re, on the proliferation of human dermal papilla cells (DPCs) and human outer root sheath cells (ORSCs) were investigated. The effects of these compounds on the cell expression of bone morphogenetic protein 4 (BMP4), fibroblast growth factor 18 (FGF18) and Noggin were assessed by real-time PCR. The effect of PGE on hair-shaft elongation was determined in a human hair follicle organ-culture system. PGE and the three ginsenosides stimulated the proliferation of DPCs and ORSCs and suppressed BMP4 expression in DPCs but did not affect FGF18 expression in ORSCs and Noggin expression in DPCs. PGE stimulated hair-shaft growth. PGE and the ginsenosides Rb1, Rg1, and Re stimulate the transition from the telogen phase to anagen phase of the hair cycle by suppressing BMP4 expression in DPCs. These compounds might be useful for promoting the growth of human hair.
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Affiliation(s)
- Tokuro Iwabuchi
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Kazuki Ogura
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Kenta Hagiwara
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Shogo Ueno
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Hiroaki Kitamura
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Haruyo Yamanishi
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Yuki Tsunekawa
- Faculty of Bioscience and Biotechnology, Tokyo University of Technology
| | - Akinori Kiso
- Research Center, Maruzen Pharmaceuticals Co., Ltd
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Chen FZ, Tan PC, Yang Z, Li Q, Zhou SB. Identifying characteristics of dermal fibroblasts in skin homeostasis and disease. Clin Exp Dermatol 2023; 48:1317-1327. [PMID: 37566911 DOI: 10.1093/ced/llad257] [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: 06/01/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023]
Abstract
Heterogeneous dermal fibroblasts are the main components that constitute the dermis. Distinct fibroblast subgroups show specific characteristics and functional plasticity that determine dermal structure during skin development and wound healing. Although researchers have described the roles of fibroblast subsets, this is not completely understood. We review recent evidence supporting understanding about the heterogeneity of fibroblasts. We summarize the origins and the identified profiles of fibroblast subpopulations. The characteristics of fibroblast subpopulations in both healthy and diseased states are highlighted, and the potential of subpopulations to be involved in wound healing in different ways was discussed. Additionally, we review the plasticity of subpopulations and the underlying signalling mechanisms. This review may provide greater insights into potential novel therapeutic targets and tissue regeneration strategies for the future.
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Affiliation(s)
- Fang-Zhou Chen
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Poh-Ching Tan
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Zihan Yang
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
- Department of Plastic and Burn Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Qingfeng Li
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Shuang-Bai Zhou
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
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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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Lin ZC, Hsu CY, Hwang E, Wang PW, Fang JY. The role of cytokines/chemokines in an aging skin immune microenvironment. Mech Ageing Dev 2023; 210:111761. [PMID: 36496171 DOI: 10.1016/j.mad.2022.111761] [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: 07/30/2022] [Revised: 11/23/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Reversing or slowing down the skin aging process is one of the most intriguing areas of focus across the social and scientific communities around the world. While aging is considered a universal and inevitable natural process of physiological decline, the aging of the skin is the most apparent visual representation of an individual's health. Aging skin may be objectively defined by epidermal thinning; increased transepidermal water loss; decreased cutaneous barrier function; loss of elasticity, laxity, and textured appearance; and gradual deterioration of the epidermal immune environment. As the largest structure of the immune system and of the body as a whole, the skin is the most vulnerable barrier of defense against the environment. The skin reflects an individual's exposures, lifestyle habits, and overall health. From an immunological perspective, cytokines and chemokines act as a central character in the communicating of the immunity in skin aging. These cell signaling proteins serve as the intercellular communication link. This review aims to elucidate how cell-cell crosstalk through cytokines and chemokines, and the interplay between host cells, infiltrating immune cells, and exogenous factors contribute to the overall aging skin.
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Affiliation(s)
- Zih-Chan Lin
- Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi, Chiayi, Taiwan
| | - Ching-Yun Hsu
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan
| | - Erica Hwang
- Department of Dermatology, Yale School of Medicine, Yale University, New Haven, CT, USA
| | - Pei-Wen Wang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Jia-You Fang
- Research Center for Food and Cosmetic Safety and Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan; Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan.
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Cai C, Zeng B, Lin L, Zheng M, Burki C, Grether‐Beck S, Krutmann J. An oral French maritime pine bark extract improves hair density in menopausal women: A randomized, placebo-controlled, double blind intervention study. Health Sci Rep 2023; 6:e1045. [PMID: 36620515 PMCID: PMC9817492 DOI: 10.1002/hsr2.1045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 12/14/2022] [Accepted: 12/27/2022] [Indexed: 01/09/2023] Open
Abstract
Background and Aims Female pattern hair loss affects females of all ages with a trend to increase after menopause. This disorder may have significant psychological impact and lead to anxiety and depression. Objective In a single center, double blind, randomized, placebo-controlled study, the effects of oral Pycnogenol® intake (3 × 50 mg/day for a total of 6 months) on hair density, scalp microcirculation, and a variety of skin physiological parameters was studied in Han Chinese menopausal women (N = 76) in Shanghai, China. Methods Measurements were taken at the beginning and after 2 and 6 months, respectively. Hair density was determined by digital photographs and further evaluated by Trichoscan software. Transepidermal water loss was measured by a humidity sensor in a closed chamber on the skin surface. Changes in microcirculation were detected as resting flux on the scalp by reflection photoplethysmography. Results Pycnogenol® intake significantly increased hair density by 30% and 23% after 2 and 6 months of treatment, respectively, as detected by Trichoscan® evaluation of digital photographs. Interestingly, photoplethysmography revealed that this beneficial effect was associated with a decrease in resting flux of the scalp skin, which might indicate an improvement of microcirculation. None of these effects were observed in the placebo taking group. In addition, a significant transient decrease of transepidermal water loss was observed in scalp skin under Pycnogenol,® but not placebo treatment. Conclusion Oral intake of Pycnogenol® might have the potential to reduce hair loss in postmenopausal women.
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Affiliation(s)
- Carr Cai
- Intertek Testing Services LtdShanghaiChina
| | - Bill Zeng
- Intertek Testing Services LtdShanghaiChina
| | - Lydia Lin
- Intertek Testing Services LtdShanghaiChina
| | | | | | | | - Jean Krutmann
- IUF ‐ Leibniz Research Institute for Environmental MedicineDüsseldorfGermany,Medical FacultyHeinrich Heine UniversityDüsseldorfGermany
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Shimizu Y, Ntege EH, Sunami H, Inoue Y. Regenerative medicine strategies for hair growth and regeneration: A narrative review of literature. Regen Ther 2022; 21:527-539. [DOI: 10.1016/j.reth.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/30/2022] [Accepted: 10/15/2022] [Indexed: 11/06/2022] Open
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Wu M, Xu C, Jiang J, Xu S, Xiong J, Fan X, Ji K, Zhao Y, Ni H, Wang Y, Liu H, Xia Z. JAM-A facilitates hair follicle regeneration in Alopecia Areata through functioning as ceRNA to protect VCAN expression in dermal papilla cells. PRECISION CLINICAL MEDICINE 2022; 5:pbac020. [PMID: 36132055 PMCID: PMC9486988 DOI: 10.1093/pcmedi/pbac020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022] Open
Abstract
The dermal papilla cells in hair follicles function as critical regulators of hair growth. In particular, alopecia areata (AA) is closely related to the malfunctioning of the human dermal papilla cells (hDPCs). Thus, identifying the regulatory mechanism of hDPCs is important in inducing hair follicle (HF) regeneration in AA patients. Recently, growing evidence has indicated that 3′ untranslated regions (3′ UTR) of key genes may participate in the regulatory circuitry underlying cell differentiation and diseases through a so-called competing endogenous mechanism, but none have been reported in HF regeneration. Here, we demonstrate that the 3′ UTR of junctional adhesion molecule A (JAM-A) could act as an essential competing endogenous RNA to maintain hDPCs function and promote HF regeneration in AA. We showed that the 3′ UTR of JAM-A shares many microRNA (miRNA) response elements, especially miR-221–3p, with versican (VCAN) mRNA, and JAM-A 3′ UTR could directly modulate the miRNA-mediated suppression of VCAN in self-renewing hDPCs. Furthermore, upregulated VCAN can in turn promote the expression level of JAM-A. Overall, we propose that JAM-A 3′ UTR forms a feedback loop with VCAN and miR-221–3p to regulate hDPC maintenance, proliferation, and differentiation, which may lead to developing new therapies for hair loss.
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Affiliation(s)
- Minjuan Wu
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
- Burns Institute of People's Liberation Army, Changhai Hospital, Naval Medical University , Shanghai, 200433 , China
| | - Chen Xu
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University , 415th Feng Yang Road, Shanghai 200003 , China
| | - Junfeng Jiang
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Sha Xu
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Jun Xiong
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Xiaoming Fan
- Burns Institute of People's Liberation Army, Changhai Hospital, Naval Medical University , Shanghai, 200433 , China
| | - Kaihong Ji
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Yunpeng Zhao
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Haitao Ni
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Yue Wang
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
- Translational Medicine Center, Naval Medical University , 800th Xiangyin Road, Shanghai 200433 , China
| | - Houqi Liu
- Department of Histology and Embryology, Naval Medical University , Shanghai, 200433 , China
| | - Zhaofan Xia
- Burns Institute of People's Liberation Army, Changhai Hospital, Naval Medical University , Shanghai, 200433 , China
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Tan PC, Zhou SB, Ou MY, He JZ, Zhang PQ, Zhang XJ, Xie Y, Gao YM, Zhang TY, Li QF. Mechanical stretching can modify the papillary dermis pattern and papillary fibroblast characteristics during skin regeneration. J Invest Dermatol 2022; 142:2384-2394.e8. [PMID: 35181299 DOI: 10.1016/j.jid.2021.11.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 11/14/2021] [Accepted: 11/23/2021] [Indexed: 12/19/2022]
Abstract
Clinical application of mechanical stretching is a reconstructive method for skin repair. Although studies have reported dermal fibroblast heterogeneity, whether stretching affects individual fibroblast subpopulations equally remains unclear. Here, we show the changes in dermal structure and papillary fibroblast (Fp) in regenerated human skin. Exhausted skin regeneration caused dermal-epidermal junction (DEJ) flattening, papillary dermis thinning, and an increase in the type III collagen (COL3)/type I collagen (COL1) ratio with upregulated hallmarks of aging. Well-regenerated skin displayed a notable increase in the Fp population. Consistent changes were observed in the rat expansion model. Moreover, we found that TGFβ1 expression was especially increased in skin showing good regeneration. Activation of the TGFβ1/Smad2/3 pathway improved exhausted skin regeneration and resulted in increased collagen content and Fp proliferation, while pharmacological inhibition of TGFβ1 action impacted well-regenerated skin. Short-term mechanical stretching that promoted skin regeneration enhanced Fp proliferation, extracellular matrix (ECM) synthesis, and increased TGFβ1 expression, leading to good regeneration. Conversely, long-term stretching induced premature Fp senescence, leading to poor regeneration. This work shows the mechanism of mechanical stretching in well skin regeneration that enhances Fp proliferation and ECM synthesis via the TGFβ1/Smad2/3 pathway, and highlights a crucial role of Fps in stretching-induced skin regeneration.
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Affiliation(s)
- Poh-Ching Tan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuang-Bai Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min-Yi Ou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ji-Zhou He
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pei-Qi Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Jie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Cell Biology, College of Life Sciences, Shanghai Normal University, Shanghai, China
| | - Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Ming Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tian-Yu Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Cell Biology, College of Life Sciences, Shanghai Normal University, Shanghai, China
| | - Qing-Feng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Ahlers JMD, Falckenhayn C, Holzscheck N, Solé-Boldo L, Schütz S, Wenck H, Winnefeld M, Lyko F, Grönniger E, Siracusa A. Single-Cell RNA Profiling of Human Skin Reveals Age-Related Loss of Dermal Sheath Cells and Their Contribution to a Juvenile Phenotype. Front Genet 2022; 12:797747. [PMID: 35069694 PMCID: PMC8776708 DOI: 10.3389/fgene.2021.797747] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/16/2021] [Indexed: 12/01/2022] Open
Abstract
The dermal sheath (DS) is a population of mesenchyme-derived skin cells with emerging importance for skin homeostasis. The DS includes hair follicle dermal stem cells, which exhibit self-renewal and serve as bipotent progenitors of dermal papilla (DP) cells and DS cells. Upon aging, stem cells exhibit deficiencies in self-renewal and their number is reduced. While the DS of mice has been examined in considerable detail, our knowledge of the human DS, the pathways contributing to its self-renewal and differentiation capacity and potential paracrine effects important for tissue regeneration and aging is very limited. Using single-cell RNA sequencing of human skin biopsies from donors of different ages we have now analyzed the transcriptome of 72,048 cells, including 50,149 fibroblasts. Our results show that DS cells that exhibit stem cell characteristics were lost upon aging. We further show that HES1, COL11A1, MYL4 and CTNNB1 regulate DS stem cell characteristics. Finally, the DS secreted protein Activin A showed paracrine effects on keratinocytes and dermal fibroblasts, promoting proliferation, epidermal thickness and pro-collagen production. Our work provides a detailed description of human DS identity on the single-cell level, its loss upon aging, its stem cell characteristics and its contribution to a juvenile skin phenotype.
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Affiliation(s)
| | | | | | - Llorenç Solé-Boldo
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Sabrina Schütz
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Horst Wenck
- Beiersdorf AG, Research and Development, Hamburg, Germany
| | - Marc Winnefeld
- Beiersdorf AG, Research and Development, Hamburg, Germany
| | - Frank Lyko
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Elke Grönniger
- Beiersdorf AG, Research and Development, Hamburg, Germany
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15
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The Role of Podoplanin in Skin Diseases. Int J Mol Sci 2022; 23:ijms23031310. [PMID: 35163233 PMCID: PMC8836045 DOI: 10.3390/ijms23031310] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/22/2022] [Accepted: 01/23/2022] [Indexed: 02/05/2023] Open
Abstract
Podoplanin is a sialomucin-like type I transmembrane receptor glycoprotein that is expressed specifically in lymphatic vessels, sebaceous glands, and hair follicles in normal skin. However, under pathological conditions podoplanin expression is upregulated in various cells, such as keratinocytes, fibroblasts, tumor cells, and inflammatory cells, and plays pivotal roles in different diseases. In psoriasis, podoplanin expression is induced in basal keratinocytes via the JAK-STAT pathway and contributes toward epidermal hyperproliferation. Podoplanin expression on keratinocytes can also promote IL-17 secretion from lymphocytes, promoting chronic inflammation. During wound healing, the podoplanin/CLEC-2 interaction between keratinocytes and platelets regulates re-epithelialization at the wound edge. In skin cancers, podoplanin expresses on tumor cells and promotes their migration and epithelial-mesenchymal transition, thereby accelerating invasion and metastasis. Podoplanin is also expressed in normal peritumoral cells, such as cancer-associated fibroblasts in melanoma and keratinocytes in extramammary Paget's disease, which promote tumor progression and predict aggressive behavior and poor prognosis. This review provides an overview of our current understanding of the mechanisms via which podoplanin mediates these pathological skin conditions.
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16
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Platelet Rich Plasma Hybridized Adipose Transplant (PHAT) for the Treatment of Hair Loss: A Case Series. Aesthetic Plast Surg 2021; 45:2760-2767. [PMID: 34236484 PMCID: PMC8264964 DOI: 10.1007/s00266-021-02406-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/29/2021] [Indexed: 12/16/2022]
Abstract
Background Platelet-rich plasma (PRP) has long been used for the restoration of hair in conjunction with microneedling or on its own. Fat grafting to the scalp has also been utilized in the past to improve the quality of hair and the possibility of successful hair transplant. The novel therapy reported in this case series combines the natural progression of these two techniques and utilizes synergistic effects to improve the quality of hair, either in preparation for micrografting or without hair transplant. Objectives To demonstrate the principles behind the novel approach to restoration of hair and the rationale for its use. Methods A review of the evidence for PRP and fat transfer for non-scarring alopecia serves as the foundation for the combination treatment reported herein. Through presentation of three cases in this series, we provide examples of the utility of this approach for non-scarring alopecia. This report includes a female who suffered non-scarring alopecia following COVID-19 hospitalization and intensive care stay where she lost a large percentage of her hair, in addition to two male patients suffering from androgenic alopecia. Results Platelet-rich plasma-hybridized adipose transplant hair was shown in these three cases to improve both the quality and density of hair. It improved the density of hair in all patients and was characterized first by a short period of transient hair loss followed by new hair growth which develops starting at 4 weeks and was readily apparent at 12-week follow-up. Results were maintained at 6-month and 1-year follow-up. Conclusions PHAT hair offers a combination of beneficial effects—namely the unique healing properties and growth signaling provided by PRP, along with adipocyte angiogenic and growth signaling, which both work to improve scalp quality. The combination of these effects is better than previously characterized PRP injections alone in the hands of these individual practices. This may be due to synergistic interactions at a cellular level, but additional clinical studies are needed to better understand this novel treatment and the observed effects. Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Meyer-Gonzalez T, Bacqueville D, Grimalt R, Mengeaud V, Piraccini BM, Rudnicka L, Saceda-Corralo D, Vogt A, Vano-Galvan S. Current controversies in trichology: a European expert consensus statement. J Eur Acad Dermatol Venereol 2021; 35 Suppl 2:3-11. [PMID: 34668238 DOI: 10.1111/jdv.17601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/13/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Hair disorders are one of the most common conditions within dermatology practice but, although new diagnostic tools and therapeutic options have arisen, the management of these patients still represents a major clinical challenge. OBJECTIVE This study aimed at gathering information and achieving consensus on relevant recommendations on the latest advances in alopecia, trichoscopy and hair dermocosmetics. METHODS Experts of the steering committee consulted the available evidence on trichology-related areas from the past 5 years and formulated recommendations based on the evidence and their experience. A modified two-round Delphi procedure was performed among 45 European dermatologists experts in trichology to consult their degree of agreement on twenty recommendations, using a 4-point Likert scale. Consensus was defined as >80% of participants scoring either 1 (totally agree) or 2 (agree). RESULTS In the first round of the Delphi questionnaire, 75% of the recommendations reached consensus. Those that were not agreed upon were reformulated by the steering committee and voted again after an online meeting, where consensus was achieved in all recommendations. CONCLUSIONS All recommendations reached consensus after the two-round Delphi questionnaire and may be useful in clinical practice for dermatologists. The participants agreed that besides this consensus, further clinical studies are needed to assess the benefits of the emerging tools and treatments and to clarify the controversies that still exist in the field, aiming at improving patients' quality of life.
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Affiliation(s)
- T Meyer-Gonzalez
- Trichology Unit, Dermatology Service Hospital Dr. Gálvez, Malaga, Spain
| | - D Bacqueville
- Pierre Fabre Laboratories, Centre R&D Pierre Fabre Toulouse, Toulouse, France
| | - R Grimalt
- Department of Dermatology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - V Mengeaud
- Pierre Fabre Laboratories, Centre R&D Pierre Fabre Toulouse, Toulouse, France
| | - B M Piraccini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna - Department of Experimental, Diagnostic and Specialty Medicine (DIMES) Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - L Rudnicka
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
| | - D Saceda-Corralo
- Trichology Unit, #TricoHRC Research Group, Dermatology Service, IRYCIS, Ramon y Cajal Hospital, University of Alcala, Madrid, Spain
| | - A Vogt
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - S Vano-Galvan
- Trichology Unit, #TricoHRC Research Group, Dermatology Service, IRYCIS, Ramon y Cajal Hospital, University of Alcala, Madrid, Spain
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