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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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2
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Qin H, Chen Y, Wang S, Ge S, Pang Q. The role of KLF4 in melanogenesis and homeostasis in sheep melanocytes. Acta Histochem 2022; 124:151839. [PMID: 34998218 DOI: 10.1016/j.acthis.2021.151839] [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] [Received: 02/08/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 11/01/2022]
Abstract
KLF4 expression has been associated with hair color in mammals and has also been found to regulate melanoma cell growth. Here, we assessed the influence of KLF4 on coat color formation and melanocytes. We found that KLF4 was highly expressed in the black skin of sheep both at the mRNA and protein levels compared with white skin. KLF4 immunostaining further showed that KLF4 protein was mainly expressed in epidermal, outer root, and hair bulb regions. In sheep melanocytes, the proliferation of melanocytes was inhibited by KLF4 overexpression and this decrease in cell proliferation was coupled with induction of the S phase, cell cycle arrest, and apoptosis. In vitro cell migration assays showed that KLF4 suppressed cell migration. In addition, KLF4 overexpression significantly increased melanin production and pigment-related gene expression. Collectively, our findings show that KLF4 is important for coat color formation and melanocyte homeostasis.
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3
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Culturing of Melanocytes from the Equine Hair Follicle Outer Root Sheath. Processes (Basel) 2021. [DOI: 10.3390/pr9010177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hair follicles harbor a heterogeneous regenerative cell pool and represent a putative low-to-non-invasively available source of stem cells. We previously reported a technology for culturing human melanocytes from the hair follicle outer root sheath (ORS) for autologous pigmentation of tissue engineered skin equivalents. This study translated the ORS technology to horses. We de-veloped a culture of equine melanocytes from the ORS (eMORS) from equine forelock hair follicles cultured by means of an analogue human hair follicle-based in vitro methodology. The procedure was adjusted to equine physiology by addition of equine serum to the culture medium. The hair follicles were isolated by macerating forelock skin rests, enzymatically digested and subjected to air-medium-interface cultivation method. The procedure resulted in differentiated equine melanocytes, which exhibited typical morphology, presence of melanosomes, expression of cytoskeleton proteins vimentin, α-SMA, Sox2, S100ß and tyrosinase as well as tyrosinase activity followed by production of melanin. According to all assessed parameters, eMORS could be ranked as partially melanotic melanocytes. The results of the study offer an experimental base for further insight into hair follicle biology in equine and for comparative studies of hair follicles across different species.
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Ghasemi M, Bajouri A, Shafiiyan S, Aghdami N. Hair Follicle as a Source of Pigment-Producing Cells for Treatment of Vitiligo: An Alternative to Epidermis? Tissue Eng Regen Med 2020; 17:815-827. [PMID: 33034877 DOI: 10.1007/s13770-020-00284-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/04/2020] [Accepted: 07/15/2020] [Indexed: 11/25/2022] Open
Abstract
To discuss the advantages and limitations of hair follicle-derived cell transplantation (FCT) in vitiligo, compared to the epidermal cell transplantation (ECT), and the knowledge gap which is required to be bridged. The papers relevant to the purpose was reviewed. Surgical approaches for treating vitiligo are based on the idea of replenishing lost melanocytes. Skin and hair follicles as the main sources of melanocytes have been applied for this purpose transferring the whole tissue or tissue-derived cell suspension to the vitiligo lesions. Considering the differences between hair follicle and epidermis in terms of the constituting cell populations, phenotype and function of melanocytes, and micro-environmental factors, different response of vitiligo patients to treatment with FCT or ECT would be expected theoretically. However, there is currently a lack of evidence on such a difference. However, ECT appears to be a more feasible, less time-consuming, and more comfortable treatment for both physicians and patients. Although the current evidence has not shown a significant difference between ECT and FCT in terms of efficacy, ECT appears to be more feasible specifically in the treatment of large lesions. However, further randomized controlled clinical trials with larger sample sizes and longer follow-up durations are required to be conducted to draw a definite conclusion on comparing FCT with ECT in terms of the safety, efficacy, durability of the therapeutic effects, and indications in vitiligo patients.
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Affiliation(s)
- Mahshid Ghasemi
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, No. 9, Shaghayegh Deadend, Banihashem St., Resalat Ave., Tehran, Iran
- University of South Australia, Future Industries Institute, Adelaide, SA, Australia
| | - Amir Bajouri
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, No. 9, Shaghayegh Deadend, Banihashem St., Resalat Ave., Tehran, Iran
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Shafiiyan
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, No. 9, Shaghayegh Deadend, Banihashem St., Resalat Ave., Tehran, Iran
| | - Nasser Aghdami
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, No. 9, Shaghayegh Deadend, Banihashem St., Resalat Ave., Tehran, Iran.
- Department of Infectious Diseases, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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5
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Hu S, Zhai P, Chen Y, Zhao B, Yang N, Wang M, Xiao Y, Bao G, Wu X. Morphological Characterization and Gene Expression Patterns for Melanin Pigmentation in Rex Rabbit. Biochem Genet 2019; 57:734-744. [PMID: 31302800 DOI: 10.1007/s10528-019-09929-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 06/27/2019] [Indexed: 01/22/2023]
Abstract
Animal melanin has an important role in the formation of animal fur and skin, which is determined by its quantities, character, and distribution. To identify the effect of melanin on the formation of multi-colored Rex rabbits (Black, Chinchilla, Beaver, Protein cyan, Protein yellow, White), the structure of hair follicles and melanin content in multi-colored Rex rabbit skins were observed by Hematoxylin and Eosin (H&E) staining and melanin staining, respectively. The melanin granules were primarily found in the epidermis and hair follicle roots. The melanin content of skin was measured by extracting melanin from skin tissue. The results demonstrated that the melanin content was the highest in the skin of black Rex rabbit. Additionally, we measured the mRNA and protein expression levels of melanin-related key genes (MITF and TYR) in the skin of different hair color by quantitative real-time PCR and Wes assay, respectively. The results revealed that the mRNA expression levels in the skin of black Rex rabbit was highly expressed when as compared with other Rex rabbit skin (P < 0.01), and they were the lowest in the skin of white Rex rabbit. Finally, correlation analysis was conducted between melanin content and the expression levels of mRNA and protein. The results indicated a significant correlation between melanin content and the mRNA expression of MITF (P < 0.05), but it was not correlated with the mRNA expression of TYR (P > 0.05). In summary, melanin deposition has important economic value, and the coat color of fur-bearing animals is partly determined by the melanin-related genes.
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Affiliation(s)
- Shuaishuai Hu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Pin Zhai
- Animal Husbandry and Veterinary Research Institute, Jiangsu Academy of Agricultural Sciences, 210014, Nanjing, Jiangsu, China
| | - Yang Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Bohao Zhao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Naisu Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Manman Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yeyi Xiao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Guolian Bao
- Animal Husbandry and Veterinary Research Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Xinsheng Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
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6
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Qiu W, Chuong CM, Lei M. Regulation of melanocyte stem cells in the pigmentation of skin and its appendages: Biological patterning and therapeutic potentials. Exp Dermatol 2019; 28:395-405. [PMID: 30537004 DOI: 10.1111/exd.13856] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/27/2018] [Accepted: 12/05/2018] [Indexed: 12/13/2022]
Abstract
Skin evolves essential appendages and indispensable types of cells that synergistically insulate the body from environmental insults. Residing in the specific regions in the skin such as epidermis, dermis and hair follicle, melanocytes perform an array of vital functions including defending the ultraviolet radiation and diversifying animal appearance. As one of the adult stem cells, melanocyte stem cells in the hair follicle bulge niche can proliferate, differentiate and keep quiescence to control and coordinate tissue homeostasis, repair and regeneration. In synchrony with hair follicle stem cells, melanocyte stem cells in the hair follicles undergo cyclic activation, degeneration and resting phases, to pigment the hairs and to preserve the stem cells. Disorder of melanocytes results in severe skin problems such as canities, vitiligo and even melanoma. Here, we compare and summarize recent discoveries about melanocyte in the skin, particularly in the hair follicle. A better understanding of the physiological and pathological regulation of melanocyte and melanocyte stem cell behaviours will help to guide the clinical applications in regenerative medicine.
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Affiliation(s)
- Weiming Qiu
- Department of Dermatology, Wuhan General Hospital of Chinese People's Liberation Army, Wuhan, China
| | - Cheng-Ming Chuong
- Department of Pathology, University of Southern California, Los Angeles, California.,Integrative Stem Cell Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Mingxing Lei
- Integrative Stem Cell Center, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Institute of New Drug Development, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan
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7
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Jung HJ, Moon SY, Sohn MY, Jang YH, Lee SJ, Kim DW, Lee WJ. Some Becker's Nevus Melanocytes Remain Alive after Treatment with Q-Switched Alexandrite Laser. Ann Dermatol 2017; 29:352-355. [PMID: 28566917 PMCID: PMC5438947 DOI: 10.5021/ad.2017.29.3.352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/30/2016] [Accepted: 06/02/2016] [Indexed: 11/24/2022] Open
Affiliation(s)
- Han Jin Jung
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sun Young Moon
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Mi Yeung Sohn
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Yong Hyun Jang
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Seok-Jong Lee
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Do Won Kim
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Weon Ju Lee
- Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
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8
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Coelho de Oliveira VC, Silva dos Santos D, Vairo L, Kasai Brunswick TH, Pimentel LAS, Carvalho AB, Campos de Carvalho AC, Goldenberg RCDS. Hair follicle-derived mesenchymal cells support undifferentiated growth of embryonic stem cells. Exp Ther Med 2017; 13:1779-1788. [PMID: 28565767 PMCID: PMC5443186 DOI: 10.3892/etm.2017.4195] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 01/13/2017] [Indexed: 02/05/2023] Open
Abstract
The aim of the present study was to investigate whether feeder layers composed of human hair follicle-derived mesenchymal stem cells (hHFDCs) are able to support human embryonic stem cells (hESCs). hHFDCs and mouse embryonic fibroblasts (MEFs) were isolated and cultured in Dulbecco's modified Eagle's medium (DMEM)/F-12 and low-glucose DMEM, respectively. hHFDCs were passaged three times and subsequently characterized. hHFDCs and MEFs were mitotically inactivated with mitomycin C for 3 h prior to co-culture with H9-hESCs. hESCs were initially established on a mouse feeder layer, subsequently transferred onto a human feeder layer and split every 5 days. Cell morphology, expression of specific 'undifferentiation' markers and growth factors, and the differentiation capacity of hESCs grown on the hHFDC feeder layer were analyzed. hHFDCs are adherent to plastic, possess the classic mesenchymal stem cell phenotype [they express cluster of differentiation (CD)90, CD73 and CD105] and are able to differentiate into adipocytes, chondroblasts and osteocytes, indicating that these cells are multipotent. Population-doubling time analysis revealed that hHFDCs rapidly proliferate over 34.5 h. As a feeder layer, hHFDC behaved similarly to MEF in maintaining the morphology of hESCs. The results of alkaline phosphatase activity, reverse transcription-quantitative polymerase chain reaction analysis of the expression of pluripotency transcription factors [octamer-binding transcription factor 4 (Oct4), Nanog and sex determining region Y-box 2], and immunofluorescence assays of markers (stage-specific embryonic antigen-4 and Oct4) in hESCs co-cultured over hHFDC, indicated that the undifferentiated state of hESCs was preserved. No change in the level of growth factor transcripts (bone morphogenetic protein 4, fibroblast growth factor-2, vascular endothelial growth factor, Pigment epithelium-derived factor and transforming growth factor-β1) was detected for either feeder layer prior to or following inactivation. Similar phenotypes of embryoid body formation, size and morphology were observed in the hHFDC and MEF feeders. In conclusion, hHFDC maintained hESCs in an undifferentiated state comparable to MEF in standard conditions, which may be an important finding regarding the establishment of stem cell-based translational applications.
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Affiliation(s)
| | - Danúbia Silva dos Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Leandro Vairo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Tais Hanae Kasai Brunswick
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | | | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
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9
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Peng Y, Xuan M, Leung VYL, Cheng B. Stem cells and aberrant signaling of molecular systems in skin aging. Ageing Res Rev 2015; 19:8-21. [PMID: 25446806 DOI: 10.1016/j.arr.2014.10.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 10/24/2014] [Accepted: 10/30/2014] [Indexed: 02/07/2023]
Abstract
The skin is the body's largest organ and it is able to self-repair throughout an individual's life. With advanced age, skin is prone to degenerate in response to damage. Although cosmetic surgery has been widely adopted to rejuvinate skin, we are far from a clear understanding of the mechanisms responsible for skin aging. Recently, adult skin-resident stem/progenitor cells, growth arrest, senescence or apoptotic death and dysfunction caused by alterations in key signaling genes, such as Ras/Raf/MEK/ERK, PI3K/Akt-kinases, Wnt, p21 and p53, have been shown to play a vital role in skin regeneration. Simultaneously, enhanced telomere attrition, hormone exhaustion, oxidative stress, genetic events and ultraviolet radiation exposure that result in severe DNA damage, genomic instability and epigenetic mutations also contribute to skin aging. Therefore, cell replacement and targeting of the molecular systems found in skin hold great promise for controlling or even curing skin aging.
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Affiliation(s)
- Yan Peng
- Department of Orthopaedics & Traumatology, LKS Faculty of Medicine, The University of Hong Kong, L9-12, Lab block, Hong Kong, SAR, China; Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou command, The Key Laboratory of Trauma Treatment & Tissue Repair of Tropical Area, PLA, GuangDong, 510010, PR China
| | - Min Xuan
- Southern Medical University, Guangzhou, 510010, PR China; Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou command, The Key Laboratory of Trauma Treatment & Tissue Repair of Tropical Area, PLA, GuangDong, 510010, PR China
| | - Victor Y L Leung
- Department of Orthopaedics & Traumatology, LKS Faculty of Medicine, The University of Hong Kong, L9-12, Lab block, Hong Kong, SAR, China.
| | - Biao Cheng
- Southern Medical University, Guangzhou, 510010, PR China.
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10
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Grichnik JM, Ross AL, Schneider SL, Sanchez MI, Eller MS, Hatzistergos KE. How, and from which cell sources, do nevi really develop? Exp Dermatol 2014; 23:310-3. [DOI: 10.1111/exd.12363] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2014] [Indexed: 12/16/2022]
Affiliation(s)
- James M. Grichnik
- Department of Dermatology and Cutaneous Surgery; University of Miami; Miller School of Medicine; Miami FL USA
- Sylvester Comprehensive Cancer Center; University of Miami; Miller School of Medicine; Miami FL USA
- Interdisciplinary Stem Cell Institute; University of Miami Miller School of Medicine; Miami FL USA
| | - Andrew L. Ross
- Department of Dermatology and Cutaneous Surgery; University of Miami; Miller School of Medicine; Miami FL USA
| | - Samantha L. Schneider
- Department of Dermatology and Cutaneous Surgery; University of Miami; Miller School of Medicine; Miami FL USA
| | - Margaret I. Sanchez
- Department of Dermatology and Cutaneous Surgery; University of Miami; Miller School of Medicine; Miami FL USA
- Sylvester Comprehensive Cancer Center; University of Miami; Miller School of Medicine; Miami FL USA
| | - Mark S. Eller
- Sylvester Comprehensive Cancer Center; University of Miami; Miller School of Medicine; Miami FL USA
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11
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Wouters J, Vankelecom H, van den Oord J. Cancer stem cells in cutaneous melanoma. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/edm.09.17] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Kumar A, Gupta S, Mohanty S, Bhargava B, Airan B. Stem Cell Niche is Partially Lost during Follicular Plucking: A Preliminary Pilot Study. Int J Trichology 2014; 5:97-100. [PMID: 24403776 PMCID: PMC3877484 DOI: 10.4103/0974-7753.122973] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background: Clinical hair transplant studies have revealed that follicular unit extraction (FUE) is superior in terms of stable hair growth in comparison to follicular plucking (FP). Various reasons have been cited for this clinical outcome. FUE and FP are employed to obtain the hair follicle units for hair transplant and recently for cell based therapies in vitiligo. However, there is no scientific data available on the comparison of stem cell fraction in the cell suspension obtained by FUE and FP. Therefore, we undertook this study to compare the percentage of stem cells in the hair follicle obtained by FUE and FP. Objective: The purpose of the following study is to evaluate the quantitative stem cell pool in the hair follicle obtained by FUE and FP. Materials and Methods: A total of 3 human subjects were enrolled with age groups of 17-25 years. Both methods of tissue harvest: FUE and FP; were employed on each subject. There was no vitiligo lesion on the scalp in any of the patients. Hair follicles were incubated with trypsin-EDTA solution at 37°C for 90 min to separate outer root sheath cells. The cell suspension was passed through a 70 μm cell strainer; filtrate was centrifuged to obtain the cell pellet. Cells were labeled with cluster of differentiation (CD200) antibody and acquired with flowcytometry. Results: The mean percentage of CD200 positive cells in FUE and FP method come out to be 8.43 and 1.63 respectively (P = 0.0152). Conclusion: FUE is a better method of the hair follicle harvesting for cell based applications as the stem cell fraction is significantly higher in comparison to FP.
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Affiliation(s)
- Anil Kumar
- Department of AIIMS, Stem Cell Facility, All India Institute of Medical Sciences, New Delhi, India
| | - Somesh Gupta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
| | - Sujata Mohanty
- Department of AIIMS, Stem Cell Facility, All India Institute of Medical Sciences, New Delhi, India
| | - Balram Bhargava
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Balram Airan
- Department of Cardio-Thoracic Vascular Surgery, All India Institute of Medical Sciences, New Delhi, India
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13
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Higdon CW, Mitra RD, Johnson SL. Gene expression analysis of zebrafish melanocytes, iridophores, and retinal pigmented epithelium reveals indicators of biological function and developmental origin. PLoS One 2013; 8:e67801. [PMID: 23874447 PMCID: PMC3706446 DOI: 10.1371/journal.pone.0067801] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 05/23/2013] [Indexed: 01/05/2023] Open
Abstract
In order to facilitate understanding of pigment cell biology, we developed a method to concomitantly purify melanocytes, iridophores, and retinal pigmented epithelium from zebrafish, and analyzed their transcriptomes. Comparing expression data from these cell types and whole embryos allowed us to reveal gene expression co-enrichment in melanocytes and retinal pigmented epithelium, as well as in melanocytes and iridophores. We found 214 genes co-enriched in melanocytes and retinal pigmented epithelium, indicating the shared functions of melanin-producing cells. We found 62 genes significantly co-enriched in melanocytes and iridophores, illustrative of their shared developmental origins from the neural crest. This is also the first analysis of the iridophore transcriptome. Gene expression analysis for iridophores revealed extensive enrichment of specific enzymes to coordinate production of their guanine-based reflective pigment. We speculate the coordinated upregulation of specific enzymes from several metabolic pathways recycles the rate-limiting substrate for purine synthesis, phosphoribosyl pyrophosphate, thus constituting a guanine cycle. The purification procedure and expression analysis described here, along with the accompanying transcriptome-wide expression data, provide the first mRNA sequencing data for multiple purified zebrafish pigment cell types, and will be a useful resource for further studies of pigment cell biology.
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Affiliation(s)
- Charles W. Higdon
- Department of Genetics, Washington University, St. Louis, Missouri, United States of America
- * E-mail: (CWH); (SLJ)
| | - Robi D. Mitra
- Department of Genetics, Washington University, St. Louis, Missouri, United States of America
| | - Stephen L. Johnson
- Department of Genetics, Washington University, St. Louis, Missouri, United States of America
- * E-mail: (CWH); (SLJ)
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14
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Zhang RZ, Zhu WY, Li HZ, Xue DZ, Jiang CJ, Li W. Culture of amelanotic melanocytes derived from human fetal hair follicles. In Vitro Cell Dev Biol Anim 2013; 49:689-94. [PMID: 23813185 DOI: 10.1007/s11626-013-9649-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/07/2013] [Indexed: 01/17/2023]
Abstract
Human melanocyte stem cells (MSCs) or melanoblasts are not well-investigated owing to the devoid of suitable culture system. Establishing cell lines of MSCs and/or their progenies from human hair follicles will provide a better opportunity to satisfy clinical needs and to enable a deeper understanding of hair-related diseases. In the present study, we cultured melanocytes derived from human fetal hair follicles, perform immunocytochemistry and Fontana Masson staining on them, and employed atomic force microscopy (AFM) and scanning electron microscopy to observe their subtle morphologies. The results show that the cultured melanocytes have a bipolar or tripolar appearance, which obviously differ from cultured epidermal melanocytes. Compared to cells derived from adult human hair follicles, these cells display a high proliferative capability and exhibit a clonal growth behavior. At the second passage, all these cells were positive for immunocytochemical staining with the NKI/beteb monoclonal antibody and Fontana Masson staining. Under AFM, the cells exhibited rounded, oval, triangular, or quadrangular perikarya, from which two or three dendrites arose. The dendritic arbor was not homogeneous but appeared as spindle-shaped dendritic swellings, knob-like processes, without any filopodia arising from the dendrites or the cell body. Without using a feeder layer, we successfully obtained the clonal growth of melanocytes from human fetal HFs, suggesting that the medium was suitable for the growth of MSCs and their progenies.
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Affiliation(s)
- Ru-zhi Zhang
- Department of Dermatology, The Third Affiliated Hospital of Suzhou University, 185 Juqian Road, Changzhou, 213003, China,
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15
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Dell'Anna ML, Cario-André M, Bellei B, Taieb A, Picardo M. In vitro research on vitiligo: strategies, principles, methodological options and common pitfalls. Exp Dermatol 2012; 21:490-6. [DOI: 10.1111/j.1600-0625.2012.01506.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Muriel Cario-André
- Inserm U 876 and National Reference Centre for Rare Skin Diseases; Bordeaux University Hospitals; Bordeaux; France
| | | | - Alain Taieb
- Inserm U 876 and National Reference Centre for Rare Skin Diseases; Bordeaux University Hospitals; Bordeaux; France
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16
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Chen WC, Zouboulis CC. Hormones and the pilosebaceous unit. DERMATO-ENDOCRINOLOGY 2011; 1:81-6. [PMID: 20224689 DOI: 10.4161/derm.1.2.8354] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Accepted: 03/09/2009] [Indexed: 01/14/2023]
Abstract
Hormones can exert their actions through endocrine, paracrine, juxtacrine, autocrine and intracrine pathways. The skin, especially the pilosebaceous unit, can be regarded as an endocrine organ meanwhile a target of hormones, because it synthesizes miscellaneous hormones and expresses diverse hormone receptors. Over the past decade, steroid hormones, phospholipid hormones, retinoids and nuclear receptor ligands as well as the so-called stress hormones have been demonstrated to play pivotal roles in controlling the development of pilosebaceous units, lipogenesis of sebaceous glands and hair cycling. Among them, androgen is most extensively studied and of highest clinical significance. Androgen-mediated dermatoses such as acne, androgenetic alopecia and seborrhea are among the most common skin disorders, with most patients exhibiting normal circulating androgen levels. The "cutaneous hyperandrogenism" is caused by in stiu overexpression of the androgenic enzymes and hyperresponsiveness of androgen receptors. Regulation of cutaneous steroidogenesis is analogous to that in gonads and adrenals. More work is needed to explain the regional difference within and between the androgn-mediated dermatoses. The pilosebaceous unit can act as an ideal model for studies in dermato-endocrinology.
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17
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Liu F, Luo XS, Shen HY, Dong JS, Yang J. Using human hair follicle-derived keratinocytes and melanocytes for constructing pigmented tissue-engineered skin. Skin Res Technol 2011; 17:373-9. [PMID: 21332809 DOI: 10.1111/j.1600-0846.2011.00510.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Traditional tissue-engineered skin does not produce a satisfactory long-term result because it lacks natural skin pigmentation and leads to discolored cosmetically unpleasing skin that only functions to cover the body of patients. Additionally, the cell sources for tissue-engineered skin are generally derived from normal skin, which is often limited in patients with skin defects. METHODS In this study, hair follicle melanocytes and keratinocytes were isolated from human scalp. The melanocytes were co-cultured with keratinocytes until the second passage and then purified. Purified melanocytes and keratinocytes were seeded onto the chitosan-gelatin membrane for 1 week to construct pigmented tissue-engineered skin. The pigmented skin equivalent was used to resurface the skin defect in nude mice. Four weeks after grafting, skin biopsies were harvested to take hematoxylin and eosin staining and immunohistochemistry staining of Melan-A and HLA-ABC. RESULTS Large quantities of purified melanocytes can be obtained with co-culture method. The hematoxylin and eosin staining of repaired skin biopsy demonstrated that the tissue-engineered skin can repair skin defects successfully. Engineered skin contained pigmentation and stained positive for Melan-A and HLA-ABC, which confirmed the presence of melanocytes and its sources were of human origin. CONCLUSION This study demonstrated the possibility of constructing pigmented tissue-engineered skin with human hair follicle-derived keratinocytes and melanocytes, which brings a promising method to make up for the deficiency of traditional tissue-engineered skin and provides an alternative treatment for depigmentation diseases.
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Affiliation(s)
- Fei Liu
- Department of Plastic and Reconstructive Surgery, The Ninth People's Hospital affiliated to Shanghai Jiaotong University School of Medicine, 639 Zhi Zao Ju Road, 200011 Shanghai, China
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Kong Y, Kumar SM, Xu X. Molecular pathogenesis of sporadic melanoma and melanoma-initiating cells. Arch Pathol Lab Med 2011. [PMID: 21128770 DOI: 10.1043/2009-0418-rar.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Recent advances in molecular genetics and cancer stem cell biology have shed some light on the molecular basis of melanomagenesis. In this review, we will focus on major genetic alterations in the melanoma, particularly pathways involved in cell proliferation, apoptosis, and tumor suppression. The potential role of melanoma-initiating cells during melanomagenesis and progression will also be discussed. Understanding pathogenesis of melanoma may uncover new diagnostic clues and therapeutic targets for this increasingly prevalent disease.
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Affiliation(s)
- Yunyi Kong
- Department of Pathology, Cancer Hospital, Fudan University, Shanghai, People’s Republic of China
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19
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Kong Y, Kumar SM, Xu X. Molecular Pathogenesis of Sporadic Melanoma and Melanoma-Initiating Cells. Arch Pathol Lab Med 2010; 134:1740-9. [DOI: 10.5858/2009-0418-rar.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Recent advances in molecular genetics and cancer stem cell biology have shed some light on the molecular basis of melanomagenesis. In this review, we will focus on major genetic alterations in the melanoma, particularly pathways involved in cell proliferation, apoptosis, and tumor suppression. The potential role of melanoma-initiating cells during melanomagenesis and progression will also be discussed. Understanding pathogenesis of melanoma may uncover new diagnostic clues and therapeutic targets for this increasingly prevalent disease.
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20
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Dieckmann C, Milkova L, Hunziker T, Emmendörffer A, Simon JC. Human melanocytes can be isolated, propagated and expanded from plucked anagen hair follicles. Exp Dermatol 2010; 19:543-5. [DOI: 10.1111/j.1600-0625.2009.01019.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Yoo BY, Shin YH, Yoon HH, Seo YK, Park JK. Hair follicular cell/organ culture in tissue engineering and regenerative medicine. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2009.09.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Usovetskii IA, Burunova VV, Kovtun NE, Suzdal'tseva YG, Krasil'nikova YB, Korotkii NG, Yarygin KN. Preparation of mixed keratinocyte and melanocyte cultures from biopsy specimens of pigmented skin sites of patients with vitiligo. Bull Exp Biol Med 2009; 148:103-5. [PMID: 19902109 DOI: 10.1007/s10517-009-0646-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A method for preparation and expansion of mixed keratinocyte and melanocyte culture from human skin biopsy specimens was developed. The culture contains two melanocyte types: derivatives of hair follicle stem cells and epidermal basal layer stem cells. Fibroblasts were completely eliminated after culturing in selective medium.
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Mimeault M, Batra SK. Recent advances on skin-resident stem/progenitor cell functions in skin regeneration, aging and cancers and novel anti-aging and cancer therapies. J Cell Mol Med 2009; 14:116-34. [PMID: 19725922 PMCID: PMC2916233 DOI: 10.1111/j.1582-4934.2009.00885.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Recent advances in skin-resident adult stem/progenitor cell research have revealed that these immature and regenerative cells with a high longevity provide critical functions in maintaining skin homeostasis and repair after severe injuries along the lifespan of individuals. The establishment of the functional properties of distinct adult stem/progenitor cells found in skin epidermis and hair follicles and extrinsic signals from their niches, which are deregulated during their aging and malignant transformation, has significantly improved our understanding on the etiopathogenesis of diverse human skin disorders and cancers. Particularly, enhanced ultraviolet radiation exposure, inflammation and oxidative stress and telomere attrition during chronological aging may induce severe DNA damages and genomic instability in the skin-resident stem/progenitor cells and their progenies. These molecular events may result in the alterations in key signalling components controlling their self-renewal and/or regenerative capacities as well as the activation of tumour suppressor gene products that trigger their growth arrest and senescence or apoptotic death. The progressive decline in the regenerative functions and/or number of skin-resident adult stem/progenitor cells may cause diverse skin diseases with advancing age. Moreover, the photoaging, telomerase re-activation and occurrence of different oncogenic events in skin-resident adult stem/progenitor cells may also culminate in their malignant transformation into cancer stem/progenitor cells and skin cancer initiation and progression. Therefore, the anti-inflammatory and anti-oxidant treatments and stem cell-replacement and gene therapies as well as the molecular targeting of their malignant counterpart, skin cancer-initiating cells offer great promise to treat diverse skin disorders and cancers.
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Affiliation(s)
- Murielle Mimeault
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA.
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Abstract
It is now well established that a subpopulation of tumor stem cells (TSCs) are present within cancer tissues. This suggests that tumors evolve from stem cells; however, the exact cell of tumor origin, the potential role of dedifferentiation, and the role of plasticity in tumor development are largely unknown. A model cancer for the study of the oncologic process is melanoma. The developmental biology of melanocytes is relatively well understood, the cells pigment as they differentiate making them easy to identify, and benign and malignant tumors develop on the skin surface allowing direct observation of growth features, early detection, and removal. This ready access to early-stage tumors will facilitate study of the early oncologic processes and the role of tissue stem cells. Melanomas, like other cancers, include a subpopulation of TSCs. These TSCs have access to embryologic developmental programs, including the capacity to differentiate along multiple cell lineages. For example, melanomas can activate germ-cell pathways with major implications for TSC self-renewal through the activation of telomerase and genomic instability through the collision of meiotic and mitotic pathways (meiomitosis). The TSC model is still evolving, but the existence of TSCs has significant ramifications for tumor development, diagnosis, prognosis, and treatment of melanoma and other cancers.
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Research Snippets. J Invest Dermatol 2006. [DOI: 10.1038/sj.jid.5700649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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