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Boschi F, Negri A, Conti A, Bernardi P, Chirumbolo S, Sbarbati A. The human dermal white adipose tissue (dWAT) morphology: A multimodal imaging approach. Ann Anat 2024; 255:152289. [PMID: 38848928 DOI: 10.1016/j.aanat.2024.152289] [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: 10/06/2023] [Revised: 05/02/2024] [Accepted: 05/27/2024] [Indexed: 06/09/2024]
Abstract
BACKGROUND Dermal white adipose tissue (dWAT) in humans can be characterized as a relaxed dermal skin compartment consisting of functionally interlinked adipocytes. dWAT is typically discerned both in terms of morphology and function from subcutaneous white adipose tissue (sWAT). In particular in human thigh, the dWAT appears as thin extensions from the adipose panniculus to the dermis, and it is primarily associated with pilosebaceous units, hair follicles, sebaceous glands, and erector pili muscles. In this work, human fat tissue samples obtained post-mortem from the gluteo-femoral region were analyzed focusing on the thin extensions of dWAT named dermal cones. This anatomical region was chosen to deepen the dWAT morphological features of this site which is interesting both for clinical applications and genetical studies. The purpose of this exploratory methodological study was to gain deeper insights into the morphological features of human dWAT through a multimodal imaging approach. METHODS Optical microscopy, Magnetic Resonance Imaging (MRI) and Scanning Electron Microscopy (SEM), have been employed in this study. The cones' length and their distances were measured on the acquired images for optical microscopy and SEM. The cone's apparent regular distribution in MRI images was evaluated using a mathematical criterion, the conformity ratio, which is the ratio of the mean nearest-neighbor distance to its standard deviation. RESULTS The imaging techniques revealed white adipocytes forming a layer, referred to as sWAT, with cones measuring nearly 2 mm in size measured on SEM and Optical images (2.1 ± 0.4 mm), with the lower part embedded in the sWAT and the upper part extending into the dermis. The distance between the cones results about 1 mm measured on MRI images and they show an overall semiregular distribution. CONCLUSIONS MRI images demonstrated an orderly arrangement of cones, and their 3D reconstruction allowed to elucidate the dermal cones' disposition in the tissue sample and a more general comprehensive visualization of the entire fat structure within the dermis.
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Affiliation(s)
- Federico Boschi
- Department of Engineering for Innovation Medicine, Strada Le Grazie 8, Verona 37134, Italy.
| | - Alessandro Negri
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
| | - Anita Conti
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
| | - Paolo Bernardi
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
| | - Salvatore Chirumbolo
- Department of Engineering for Innovation Medicine, Strada Le Grazie 8, Verona 37134, Italy
| | - Andrea Sbarbati
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
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2
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Ma S, Ji D, Wang X, Yang Y, Shi Y, Chen Y. Transcriptomic Analysis Reveals Candidate Ligand-Receptor Pairs and Signaling Networks Mediating Intercellular Communication between Hair Matrix Cells and Dermal Papilla Cells from Cashmere Goats. Cells 2023; 12:1645. [PMID: 37371115 DOI: 10.3390/cells12121645] [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: 04/08/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Hair fiber growth is determined by the spatiotemporally controlled proliferation, differentiation, and apoptosis of hair matrix cells (HMCs) inside the hair follicle (HF); however, dermal papilla cells (DPCs), the cell population surrounded by HMCs, manipulate the above processes via intercellular crosstalk with HMCs. Therefore, exploring how the mutual commutations between the cells are molecularly achieved is vital to understanding the mechanisms underlying hair growth. Here, based on our previous successes in cultivating HMCs and DPCs from cashmere goats, we combined a series of techniques, including in vitro cell coculture, transcriptome sequencing, and bioinformatic analysis, to uncover ligand-receptor pairs and signaling networks mediating intercellular crosstalk. Firstly, we found that direct cellular interaction significantly alters cell cycle distribution patterns and changes the gene expression profiles of both cells at the global level. Next, we constructed the networks of ligand-receptor pairs mediating intercellular autocrine or paracrine crosstalk between the cells. A few pairs, such as LEP-LEPR, IL6-EGFR, RSPO1-LRP6, and ADM-CALCRL, are found to have known or potential roles in hair growth by acting as bridges linking cells. Further, we inferred the signaling axis connecting the cells from transcriptomic data with the advantage of CCCExplorer. Certain pathways, including INHBA-ACVR2A/ACVR2B-ACVR1/ACVR1B-SMAD3, were predicted as the axis mediating the promotive effect of INHBA on hair growth via paracrine crosstalk between DPCs and HMCs. Finally, we verified that LEP-LEPR and IL1A-IL1R1 are pivotal ligand-receptor pairs involved in autocrine and paracrine communication of DPCs and HMCs to DPCs, respectively. Our study provides a comprehensive landscape of intercellular crosstalk between key cell types inside HF at the molecular level, which is helpful for an in-depth understanding of the mechanisms related to hair growth.
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Affiliation(s)
- Sen Ma
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou 450002, China
- Henan Engineering Research Center for Forage, Zhengzhou 450002, China
| | - Dejun Ji
- Key Laboratory for Animal Genetics and Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Xiaolong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yuxin Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yinghua Shi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou 450002, China
- Henan Engineering Research Center for Forage, Zhengzhou 450002, China
| | - Yulin Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
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3
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Palanivel JA, Millington GWM. Obesity-induced immunological effects on the skin. SKIN HEALTH AND DISEASE 2023; 3:e160. [PMID: 37275420 PMCID: PMC10233091 DOI: 10.1002/ski2.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 08/13/2022] [Accepted: 08/16/2022] [Indexed: 03/05/2023]
Abstract
There is an increasing prevalence of obesity globally. Equally, the significance of maintaining a healthy body weight for maintaining a healthy skin homoeostasis is gaining greater attention. On this background, there is growing evidence of an adverse influence of excess body weight on the immune system, which has a resultant detrimental effect on the functioning of the skin. The presence of obesity appears to intensify various inflammatory skin disorders. These immune-dermatological consequences in the obese occur because of multiple adverse changes in the skin physiology, endocrine imbalance, metabolic deviations, alterations in circulation, skin microbiome and immunological disruptions. The purpose of this article is to highlight the profound impact of increased fat deposition on cutaneous immunology and its role in the pathophysiology of various chronic inflammatory dermatological conditions. Understanding these immunological modulations will aid in developing therapies targeting the specific inflammatory mediators in the management of obesity-associated chronic immunological skin disease.
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4
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Nicu C, Jackson J, Shahmalak A, Pople J, Ansell D, Paus R. Adiponectin negatively regulates pigmentation, Wnt/β-catenin and HGF/c-Met signalling within human scalp hair follicles ex vivo. Arch Dermatol Res 2023; 315:603-612. [PMID: 34854998 DOI: 10.1007/s00403-021-02291-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/22/2021] [Accepted: 09/24/2021] [Indexed: 12/15/2022]
Abstract
Adiponectin reportedly stimulates proliferation and elongation of human scalp hair follicles (HFs) ex vivo. In the current study, we investigated how adiponectin oligomers produced by perifollicular dermal white adipose tissue (dWAT), a potent source of adiponectin isoforms, influence human HF proliferation and pigmentation. To do so, we treated microdissected, organ-cultured HFs in the presence or absence of dWAT with a recombinant human adiponectin oligomer mix, or inhibited dWAT-derived adiponectin using a neutralizing antibody. Multiplex qPCR (Fluidigm) revealed that adiponectin oligomers downregulated pigmentation genes KITLG, PMEL and TYRP1 and Wnt genes AXIN2, LEF1 and WNT10B. In situ hybridization showed that adiponectin downregulated AXIN2 and LEF1, and up-regulated DKK1 within the dermal papilla (DP), a highly unusual transcriptional profile for a putative hair growth-promoting agent. Adiponectin oligomers also downregulated protein expression of the HGF receptor c-Met within the matrix and DP. However, adiponectin did not alter hair matrix keratinocyte proliferation within 48 h ex vivo, irrespective of the presence/absence of dWAT; HF pigmentation (Masson-Fontana histochemistry, tyrosinase activity) was also unchanged. In contrast, neutralizing adiponectin isoforms within HF + dWAT increased proliferation, melanin content and tyrosinase activity but resulted in fewer melanocytes and melanocytic dendrites, as assessed by gp100 immunostaining. These seemingly contradictory effects suggest that adiponectin exerts complex effects upon human HF biology, likely in parallel with the pro-pigmentation effects of dWAT- and DP-derived HGF. Our data suggest that dWAT-derived ratios of adiponectin isoforms and the cleaved, globular version of adiponectin may in fact determine how adiponectin impacts upon follicular pigmentation and growth.
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Affiliation(s)
- Carina Nicu
- Centre for Dermatology Research, University of Manchester, Manchester and NIHR Manchester Biomedical Research Centre, Manchester, UK.
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Jennifer Jackson
- Centre for Dermatology Research, University of Manchester, Manchester and NIHR Manchester Biomedical Research Centre, Manchester, UK
| | | | - Jenny Pople
- Unilever R&D Colworth, Colworth Science Park, Bedford, UK
| | - David Ansell
- Centre for Dermatology Research, University of Manchester, Manchester and NIHR Manchester Biomedical Research Centre, Manchester, UK
- Centre for Skin Sciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | - Ralf Paus
- Centre for Dermatology Research, University of Manchester, Manchester and NIHR Manchester Biomedical Research Centre, Manchester, UK
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
- Monasterium Laboratory, Münster, Germany
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5
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Wu Y, Hui Y, Liu F, Chen H, Liu K, Chen Q, He Y, Hong N, Yan W, Kong Q, Sang H. The Association of Serum Adipokines, Insulin Resistance and Vitamin D Status in Male Patients with Androgenetic Alopecia. Clin Cosmet Investig Dermatol 2023; 16:419-427. [PMID: 36817642 PMCID: PMC9936883 DOI: 10.2147/ccid.s396697] [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: 11/14/2022] [Accepted: 02/08/2023] [Indexed: 02/15/2023]
Abstract
Background The frequent coexistence of obesity and metabolic syndrome in patients with Androgenetic alopecia (AGA), may indicate a common pathogenetic pathway with adipokines being a possible implicating cytokine. Objective This study was conducted to investigate the changes in serum levels of adipokines, insulin resistance, vitamin D status and their relationship with AGA, and the relationship between serum levels of adipokines and insulin resistance. Methods 80 male patients with AGA were selected as the experimental group and 60 healthy males served as the control group. Both the AGA group and healthy control group were divided into 2 groups according to the presence or absence of insulin resistance (IR): the IR group and the NIR group. Serum levels of leptin, adiponectin, resistin, visfatin, insulin and 25(OH)D were evaluated in all subjects. Results Compared with the control group, AGA patients showed higher serum levels of leptin and lower adiponectin/leptin (Adpn/Lep) ratio (P<0.05), and both were positively correlated with the severity of the disease. Compared with the AGA NIR group, serum leptin levels were increased in the AGA IR group (P<0.05). AGA IR group and AGA NIR group possessed lower Adpn/Lep ratio when compared with the healthy IR group and healthy NIR group respectively (P<0.05). The multi-factor logistic regression analysis results showed decreased Adpn/Lep level and increased leptin level as risk factors for AGA. AGA Patients had lower vitamin D levels than healthy controls (P<0.05). Conclusion Patients with AGA show an imbalance between pro- and anti-inflammatory adipokines, and probably be involved in AGA pathogenesis. Insulin resistance may influence levels of adipokines, but the present findings cannot indicate insulin resistance plays a role in the onset of AGA. The insufficiency and deficiency of vitamin D are common health concern in our subjects and may be involved in the dysfunction of adipocytes and the development of AGA.
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Affiliation(s)
- YiFan Wu
- Nanjing Medical University, Nanjing, 210002, People’s Republic of China
| | - Yun Hui
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
| | - Fang Liu
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
| | - Huan Chen
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
| | - KeHan Liu
- Nanjing Medical University, Nanjing, 210002, People’s Republic of China
| | - QiYing Chen
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
| | - YiFan He
- Nanjing Medical University, Nanjing, 210002, People’s Republic of China
| | - Nan Hong
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
| | - WenLiang Yan
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
| | - QingTao Kong
- Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China,Correspondence: QingTao Kong; Hong Sang, Jinling Hospital, Nanjing, Jiangsu, People’s Republic of China, Tel +86 025-80860092, Email ;
| | - Hong Sang
- Nanjing Medical University, Nanjing, 210002, People’s Republic of China,Department of Dermatology, Jinling Hospital, Nanjing University, Nanjing, 210002, People’s Republic of China
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6
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Zhang KW, Jia Y, Li YY, Guo DY, Li XX, Hu K, Qian XX, Chen ZH, Wu JJ, Yuan ZD, Yuan FL. LEP and LEPR are possibly a double-edged sword for wound healing. J Cell Physiol 2023; 238:355-365. [PMID: 36571294 DOI: 10.1002/jcp.30936] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/27/2022]
Abstract
Wound healing is a complex and error-prone process. Wound healing in adults often leads to the formation of scars, a type of fibrotic tissue that lacks skin appendages. Hypertrophic scars and keloids can also form when the wound-healing process goes wrong. Leptin (Lep) and leptin receptors (LepRs) have recently been shown to affect multiple stages of wound healing. This effect, however, is paradoxical for scarless wound healing. On the one hand, Lep exerts pro-inflammatory and profibrotic effects; on the other hand, Lep can regulate hair follicle growth. This paper summarises the role of Lep and LepRs on cells in different stages of wound healing, briefly introduces the process of wound healing and Lep and LepRs, and examines the possibility of promoting scarless wound healing through spatiotemporal, systemic, and local regulation of Lep levels and the binding of Lep and LepRs.
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Affiliation(s)
- Kai-Wen Zhang
- Department of Medicine, Institute of Integrated Traditional Chinese and Western Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Wuxi, China
| | - Yuan Jia
- Department of Medicine, Institute of Integrated Traditional Chinese and Western Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Wuxi, China
| | - Yue-Yue Li
- Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Dan-Yang Guo
- Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Xiao-Xiao Li
- Department of Medicine, Institute of Integrated Traditional Chinese and Western Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Wuxi, China
| | - Kai Hu
- Department of Medicine, Institute of Integrated Traditional Chinese and Western Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Wuxi, China
| | - Xiao-Xi Qian
- Department of Medicine, Institute of Integrated Traditional Chinese and Western Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Wuxi, China
| | - Zhong-Hua Chen
- Department of Medicine, The Nantong University, Nantong, China
| | - Jun-Jie Wu
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, China
| | - Zheng-Dong Yuan
- Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, China
| | - Feng-Lai Yuan
- Department of Medicine, Institute of Integrated Traditional Chinese and Western Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Wuxi, China.,Affiliated Hospital of Jiangnan University, Wuxi, China.,Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, China
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7
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Teng Y, Zou M, Zhou X, Wu J, Liu S, Yuan Z, Jia Y, Zhang K, Li X, Ye J, Yuan F. Novel prospects for scarless wound healing: The roles of myofibroblasts and adipocytes. J Cell Mol Med 2022; 26:5113-5121. [PMID: 36106529 PMCID: PMC9575100 DOI: 10.1111/jcmm.17535] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 08/14/2022] [Accepted: 08/24/2022] [Indexed: 11/26/2022] Open
Abstract
Disturbances or defects in the process of wound repair can disrupt the delicate balance of cells and molecules necessary for complete wound healing, thus leading to chronic wounds or fibrotic scars. Myofibroblasts are one of the most important cells involved in fibrotic scars, and reprogramming provides a potential avenue to increase myofibroblast clearance. Although myofibroblasts have long been recognized as terminally differentiated cells, recent studies have shown that myofibroblasts have the capacity to be reprogrammed into adipocytes. This review intends to summarize the potential of reprogramming myofibroblasts into adipocytes. We will discuss myofibroblast lineage tracing, as well as the known mechanisms underlying adipocyte regeneration from myofibroblasts. In addition, we investigated different changes in myofibroblast gene expression, transcriptional regulators, signalling pathways and epigenetic regulators during skin wound healing. In the future, myofibroblast reprogramming in wound healing will be better understood and appreciated, which may provide new ideas for the treatment of scarless wound healing.
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Affiliation(s)
- Ying‐Ying Teng
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
| | - Ming‐Li Zou
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine Nanjing University of Chinese Medicine Wuxi China
| | - Xiao‐Jin Zhou
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
| | - Jun‐Jie Wu
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
| | - Si‐Yu Liu
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine Nanjing University of Chinese Medicine Wuxi China
| | - Zheng‐Dong Yuan
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
| | - Yuan Jia
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine Nanjing University of Chinese Medicine Wuxi China
| | - Kai‐Wen Zhang
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine Nanjing University of Chinese Medicine Wuxi China
| | - Xia Li
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
| | - Jun‐Xing Ye
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
| | - Feng‐Lai Yuan
- Institute of Integrated Chinese and Western Medicine The Hospital Affiliated to Jiangnan University Wuxi China
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine Nanjing University of Chinese Medicine Wuxi China
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8
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Gao L, Chen EQ, Zhong HB, Xie J, Song HZ, Zhao XB, Lin LR, Liu Q, Wang S, Wu WY, Zhao RC, Liao XH. Large-scale isolation of functional dermal papilla cells using novel surface marker LEPR. Cytometry A 2022; 101:675-681. [PMID: 35524584 DOI: 10.1002/cyto.a.24569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/24/2022] [Accepted: 04/26/2022] [Indexed: 11/12/2022]
Abstract
Dermal papilla (DP) cells regulate hair follicle epithelial cells and melanocytes by secreting functional factors, playing a key role in hair follicle morphogenesis and hair growth. DP cells can reconstitute new hair follicles and induce hair regeneration, providing a potential therapeutic strategy for treating hair loss. However, current methods for isolating DP cells are either inefficient (physical microdissection) or only applied to genetically labeled mice. We systematically screened for the surface proteins specifically expressed in skin DP using mRNA expression databases. We identified two antibodies against receptors LEPR and SCARA5 which could specifically label and isolate DP cells by flow cytometry from mice back skin at the growth phase. The sorted LEPR+ cells maintained the DP characteristics after culturing in vitro, expressing DP marker alkaline phosphatase and functional factors including RSPO1/2 and EDN3, the three major DP secretory factors that regulate hair follicle epithelial cells and melanocytes. Furthermore, the low-passage LEPR+ DP cells could reconstitute hair follicles on nude mice using chamber graft assay when combined with epithelial stem cells. The method of isolating functional DP cells we established here lays a solid foundation for developing DP cell-based therapy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Lipeng Gao
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Eve Qian Chen
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Hong-Bing Zhong
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Jing Xie
- Department of Dermatology, the Third Affiliated Hospital of Shanghai University (Wenzhou People's Hospital), Wenzhou, China
| | - Hong-Zhi Song
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Xu-Bo Zhao
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Lin-Ran Lin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.,Department of Dermatology, Jing'an District Central Hospital, Shanghai, China
| | - Qingmei Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.,Department of Dermatology, Jing'an District Central Hospital, Shanghai, China
| | - Shihua Wang
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Wen-Yu Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China.,Department of Dermatology, Jing'an District Central Hospital, Shanghai, China
| | - Robert Chunhua Zhao
- School of Life Sciences, Shanghai University, Shanghai, China.,Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Xin-Hua Liao
- School of Life Sciences, Shanghai University, Shanghai, China
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9
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da Cruz GK, Martins MIM, Antunes FTT, de Souza AH, Wiilland EDF, Picada JN, Brum LFDS. Evaluation of the efficacy and toxicity of oral and topical pumpkin oil on the hair growth of mice. Acta Histochem 2022; 124:151894. [PMID: 35447441 DOI: 10.1016/j.acthis.2022.151894] [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: 11/15/2021] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/11/2022]
Abstract
This study aimed to evaluate the efficacy and safety of a topical and oral administration of pumpkin seed oil (PSO) on the hair growth of BALB/c male mice. The animals had their dorsal area shaved (2 ×2 cm) and they were divided into 6 experimental groups. They received orally saline (OS), finasteride (F), or PSO (OP) for 14 days; or topically saline (TS), minoxidil (M), or PSO (TP) for 7 days. The euthanasia of all of the mice occurred on the 22nd day, and the histological slides from the skin area were analyzed. Lipoperoxidation in the liver was assessed through the TBARS method and was also evaluated by the antioxidant enzymes (SOD and CAT). The comet assay and the micronucleus tests were performed for genotoxic/mutagenic safety analyses. A significant increase in the number of hair follicles in the TP group was seen (8.8 ± 0.8) but it was disorganized, with loose dermal collagen. Finasteride presented a significant increase in the levels of the TBARS, SOD, and CAT in the liver, and M increased the DNA damage in the blood and the liver tissues. PSO did not induce any significant changes. In addition, PSO did not induce genotoxic or mutagenic effects. In conclusion, the oral PSO for 14 days acted in the proliferation of the hair follicles, without toxicity signals in the liver. DATA AVAILABILITY: The authors confirm that all of the relevant data is included in the article and/or in the supplementary information file.
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10
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Ji S, Zhu Z, Sun X, Fu X. Functional hair follicle regeneration: an updated review. Signal Transduct Target Ther 2021; 6:66. [PMID: 33594043 PMCID: PMC7886855 DOI: 10.1038/s41392-020-00441-y] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/25/2020] [Accepted: 11/03/2020] [Indexed: 01/31/2023] Open
Abstract
The hair follicle (HF) is a highly conserved sensory organ associated with the immune response against pathogens, thermoregulation, sebum production, angiogenesis, neurogenesis and wound healing. Although recent advances in lineage-tracing techniques and the ability to profile gene expression in small populations of cells have increased the understanding of how stem cells operate during hair growth and regeneration, the construction of functional follicles with cycling activity is still a great challenge for the hair research field and for translational and clinical applications. Given that hair formation and cycling rely on tightly coordinated epithelial-mesenchymal interactions, we thus review potential cell sources with HF-inducive capacities and summarize current bioengineering strategies for HF regeneration with functional restoration.
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Affiliation(s)
- Shuaifei Ji
- grid.506261.60000 0001 0706 7839Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048 People’s Republic of China
| | - Ziying Zhu
- grid.506261.60000 0001 0706 7839Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048 People’s Republic of China
| | - Xiaoyan Sun
- grid.506261.60000 0001 0706 7839Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048 People’s Republic of China
| | - Xiaobing Fu
- grid.506261.60000 0001 0706 7839Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048 People’s Republic of China
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11
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Su X, Cheng Y, Chang D. The Important Role of Leptin in Modulating the Risk of Dermatological Diseases. Front Immunol 2021; 11:593564. [PMID: 33597945 PMCID: PMC7882601 DOI: 10.3389/fimmu.2020.593564] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 12/14/2020] [Indexed: 12/11/2022] Open
Abstract
It is an indisputable fact that obesity is associated with a series of health problems. One important hallmark of obesity is excessive accumulation of lipids in the adipocyte, especially triglyceride (TG). Currently, the adipocyte has been considered not only as a huge repository of excess energy in the form of fat but also as an important source of multiple hormones and cytokines called adipokines. In obesity, the adipocyte is dysfunctional with excessive production and secretion of pro-inflammatory adipokines, such as tumor necrosis factor α (TNF-α), interleukin 6 (IL-6), and leptin. On the other hand, accumulating evidence has shown that leptin plays a vital role in stimulating angiogenesis, controlling lipid metabolism, and modulating the production of pro-inflammatory cytokines. Furthermore, the various activities of leptin are related to the wide distribution of leptin receptors. Notably, it has been reported that enhanced leptin levels and dysfunction of the leptin signaling pathway can influence diverse skin diseases. Recently, several studies revealed the roles of leptin in wound healing, the hair cycle, and the pathogenic development of skin diseases, such as psoriasis, lupus erythematosus, and dermatological cancers. However, the exact mechanisms of leptin in modulating the dermatological diseases are still under investigation. Therefore, in the present review, we summarized the regulatory roles of leptin in the pathological progression of diverse diseases of skin and skin appendages. Furthermore, we also provided evidence to elucidate the complicated relationship between leptin and different dermatological diseases, such as systemic lupus erythematosus (SLE), psoriasis, hidradenitis suppurativa, and some skin tumors.
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Affiliation(s)
- Xin Su
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, China
| | | | - Dong Chang
- Department of Cardiology, The Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, China
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12
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Su X, Zhang G, Cheng Y, Wang B. Leptin in skin disease modulation. Clin Chim Acta 2021; 516:8-14. [PMID: 33485901 DOI: 10.1016/j.cca.2021.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 12/29/2022]
Abstract
In obesity, adipocytes are dysfunctional with excessive production and secretion of pro-inflammatory hormones and cytokines, ie, adipokines, such as tumor necrosis factor α (TNF-α), interleukin 6 (IL-6) and leptin. Accumulating evidence has shown that leptin possesses pleiotropic functions including stimulation of angiogenesis and production of pro-inflammatory cytokines. Furthermore, various leptin associated activities involve a wide distribution of leptin receptors. For example, increased serum leptin was associated with tissue receptor resistance in metabolic syndrome. Although increased serum leptin, receptor and signaling impairment are involved in wound healing, hair cycle and the pathogenesis of many skin diseases such as psoriasis and lupus erythematosus as well as skin cancer, its exact role remains unclear. In the present article, we discuss the biochemistry of leptin action and its potential role in the pathophysiology of diverse skin diseases.
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Affiliation(s)
- Xin Su
- Department of Cardiology, the Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Guoming Zhang
- Department of Cardiology, the Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China
| | - Ye Cheng
- Department of Cardiology, the Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China.
| | - Bin Wang
- Department of Cardiology, the Xiamen Cardiovascular Hospital of Xiamen University, Xiamen, Fujian, China.
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13
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Dermal Adipose Tissue Secretes HGF to Promote Human Hair Growth and Pigmentation. J Invest Dermatol 2021; 141:1633-1645.e13. [PMID: 33493531 DOI: 10.1016/j.jid.2020.12.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/20/2020] [Accepted: 12/03/2020] [Indexed: 02/08/2023]
Abstract
Hair follicles (HFs) are immersed within dermal white adipose tissue (dWAT), yet human adipocyte‒HF communication remains unexplored. Therefore, we investigated how perifollicular adipocytes affect the physiology of human anagen scalp HFs. Quantitative immunohistomorphometry, X-ray microcomputed tomography, and transmission electron microscopy showed that the number and size of perifollicular adipocytes declined during anagen‒catagen transition, whereas fluorescence-lifetime imaging revealed increased lipid oxidation in adipocytes surrounding the bulge and/or sub-bulge region. Ex vivo, dWAT tendentially promoted hair shaft production, and significantly stimulated hair matrix keratinocyte proliferation and HF pigmentation. Both dWAT pericytes and PREF1/DLK1+ adipocyte progenitors secreted HGF during human HF‒dWAT co-culture, for which the c-Met receptor was expressed in the hair matrix and dermal papilla. These effects were reproduced using recombinant HGF and abrogated by an HGF-neutralizing antibody. Laser-capture microdissection‒based microarray analysis of the hair matrix showed that dWAT-derived HGF upregulated keratin (K) genes (K27, K73, K75, K84, K86) and TCHH. Mechanistically, HGF stimulated Wnt/β-catenin activity in the human hair matrix (increased AXIN2, LEF1) by upregulating WNT6 and WNT10B, and inhibiting SFRP1 in the dermal papilla. Our study demonstrates that dWAT regulates human hair growth and pigmentation through HGF secretion, and thus identifies dWAT and HGF as important novel molecular and cellular targets for therapeutic intervention in human hair growth and pigmentation disorders.
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14
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Kovács D, Fazekas F, Oláh A, Törőcsik D. Adipokines in the Skin and in Dermatological Diseases. Int J Mol Sci 2020; 21:ijms21239048. [PMID: 33260746 PMCID: PMC7730960 DOI: 10.3390/ijms21239048] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022] Open
Abstract
Adipokines are the primary mediators of adipose tissue-induced and regulated systemic inflammatory diseases; however, recent findings revealed that serum levels of various adipokines correlate also with the onset and the severity of dermatological diseases. Importantly, further data confirmed that the skin serves not only as a target for adipokine signaling, but may serve as a source too. In this review, we aim to provide a complex overview on how adipokines may integrate into the (patho) physiological conditions of the skin by introducing the cell types, such as keratinocytes, fibroblasts, and sebocytes, which are known to produce adipokines as well as the signals that target them. Moreover, we discuss data from in vivo and in vitro murine and human studies as well as genetic data on how adipokines may contribute to various aspects of the homeostasis of the skin, e.g., melanogenesis, hair growth, or wound healing, just as to the pathogenesis of dermatological diseases such as psoriasis, atopic dermatitis, acne, rosacea, and melanoma.
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Affiliation(s)
- Dóra Kovács
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98., 4032 Debrecen, Hungary; (D.K.); (F.F.)
| | - Fruzsina Fazekas
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98., 4032 Debrecen, Hungary; (D.K.); (F.F.)
| | - Attila Oláh
- Department of Physiology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98., 4032 Debrecen, Hungary;
| | - Dániel Törőcsik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98., 4032 Debrecen, Hungary; (D.K.); (F.F.)
- Correspondence: ; Tel.: +36-52-255-602
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15
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Dopytalska K, Baranowska-Bik A, Roszkiewicz M, Bik W, Walecka I. The role of leptin in selected skin diseases. Lipids Health Dis 2020; 19:215. [PMID: 33008429 PMCID: PMC7532589 DOI: 10.1186/s12944-020-01391-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/24/2020] [Indexed: 12/13/2022] Open
Abstract
Leptin is an adipokine, adipocyte-derived compound, which acts both as a hormone and cytokine. It is mainly synthesized by adipocytes of white adipose tissue. Leptin possesses pleiotropic functions including, among others, stimulation of angiogenesis and production of proinflammatory cytokines. The various types of leptin activity are related to the wide distribution of leptin receptors. This adipokine acts by activating intracellular signaling cascades such as JAKs (Janus kinases), STATs (signal transducers and activators of transcription), and others.In a course of obesity, an increased serum level of leptin coexists with tissue receptor resistance. It has been reported that enhanced leptin levels, leptin receptor impairment, and dysfunction of leptin signaling can influence skin and hair. The previous studies revealed the role of leptin in wound healing, hair cycle, and pathogenesis of skin diseases like psoriasis, lupus erythematosus, and skin cancers. However, the exact mechanism of leptin's impact on the skin is still under investigation. Herein, we present the current knowledge concerning the role of leptin in psoriasis and selected skin diseases.
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Affiliation(s)
- Klaudia Dopytalska
- Department of Dermatology, Centre of Postgraduate Medical Education, Woloska 137, 02-507, Warsaw, Poland
| | - Agnieszka Baranowska-Bik
- Department of Endocrinology, Centre of Postgraduate Medical Education, Ceglowska 80, 01-809, Warsaw, Poland.
| | - Marek Roszkiewicz
- Department of Dermatology, Centre of Postgraduate Medical Education, Woloska 137, 02-507, Warsaw, Poland
| | - Wojciech Bik
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813, Warsaw, Poland
| | - Irena Walecka
- Department of Dermatology, Centre of Postgraduate Medical Education, Woloska 137, 02-507, Warsaw, Poland
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16
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Nicu C, Hardman JA, Pople J, Paus R. Do human dermal adipocytes switch from lipogenesis in anagen to lipophagy and lipolysis during catagen in the human hair cycle? Exp Dermatol 2019; 28:432-435. [PMID: 30776154 DOI: 10.1111/exd.13904] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/14/2019] [Accepted: 01/31/2019] [Indexed: 12/13/2022]
Abstract
In murine skin, dermal white adipose tissue (DWAT) undergoes fluctuations in size across the hair cycle, whereas changes in size, function and metabolism of dermal adipocytes (DAs) during the human scalp hair cycle remain unexplored. Transmission electron microscopy results suggest that during anagen-catagen transition, human DAs co-opt the autophagy machinery to undergo lipophagy within their lipid droplets. Whole-mount staining of hair follicles (HFs) and surrounding DWAT for the autophagy marker LC3B confirms the increased presence of LC3B+ lipid droplets adjacent to catagen HFs; moreover, DWAT around catagen HFs engages in greater glycerol release compared to DWAT surrounding anagen HFs. Thus, we hypothesize that human DAs switch from lipogenesis during anagen to lipophagy together with lipolysis during catagen. We propose various experiments to further prove this hypothesis, whose systematic exploration should help to better characterize the functions of human DWAT and its communication with the HF.
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Affiliation(s)
- Carina Nicu
- Centre for Dermatology Research, The University of Manchester, Manchester, UK.,NIHR Manchester Biomedical Research Centre and Manchester Academic Health Science Centre, Manchester, UK
| | - Jonathan Alan Hardman
- Centre for Dermatology Research, The University of Manchester, Manchester, UK.,NIHR Manchester Biomedical Research Centre and Manchester Academic Health Science Centre, Manchester, UK
| | | | - Ralf Paus
- Centre for Dermatology Research, The University of Manchester, Manchester, UK.,NIHR Manchester Biomedical Research Centre and Manchester Academic Health Science Centre, Manchester, UK.,Dr. Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida
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17
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Mercati F, Dall'Aglio C, Timperi L, Scocco P, De Felice E, Maranesi M. Epithelial expression of the hormone leptin by bovine skin. Eur J Histochem 2019; 63. [PMID: 30652436 PMCID: PMC6340309 DOI: 10.4081/ejh.2019.2993] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/29/2018] [Indexed: 01/12/2023] Open
Abstract
Leptin (Lep) stimulates keratinocytes to proliferate, intervenes in the wound healing and participates to hair follicle morphogenesis and cycle. While it is secreted by skin structures including epidermis and hair follicles, intradermal adipose tissue also seems to have a role in Lep secretion and accordingly in the control of hair follicle growth in mice and humans. Lep was investigated in the skin of humans and laboratory animals but there are not data regarding bovine species. The aim of this work was to study the expression of Lep and its receptor (LepR) in the skin of bovine and, at the same time, to investigate the presence and extension of intradermal adipose tissue. A morphological evaluation of the skin was performed while the presence and localization of Lep and LepR were analyzed by RT-PCR and immunohistochemistry. A high and thick dermis without adipocytes was observed. Hair follicles and sebaceous and sweat glands were located in the proximal part of the skin while a thick layer of connective tissue, lacking adipose cells, separated these structures by subcutis. RT-PCR evidenced the transcripts for both molecules. By immunohistochemistry, Lep and LepR were observed in the epidermis and hair follicles. Based on the absence of intradermal adipose tissue and the presence of both Lep and LepR in the epidermis and in the hair follicle epithelium, it can be posited that in bovine skin Lep participates to the control of epidermis growth and hair follicle cycle through a paracrine and autocrine mechanisms.
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18
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Li B, Hu W, Ma K, Zhang C, Fu X. Are hair follicle stem cells promising candidates for wound healing? Expert Opin Biol Ther 2019; 19:119-128. [PMID: 30577700 DOI: 10.1080/14712598.2019.1559290] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION With the continued focus on in-depth investigations of hair follicle stem cells (HFSCs), the role of HFSCs in wound healing has attracted increasing attention from researchers. This review may afford meaningful implications for HFSC treatment of wounds. AREAS COVERED We present the properties of HFSCs, analyze the possibility of HFSCs in wound healing, and sum up the recent studies into wound repair with HFSCs. The details of HFSCs in wound healing have been discussed. The possible mechanisms of wound healing with HFSCs have been elaborated. Additionally, the factors that influence HFSCs in wound healing are also summarized. EXPERT OPINION Hair follicle stem cells are promising sources for wound healing. However, a further understanding of human HFSCs and the safety use of HFSCs in clinical practice still remain in relative infancy.
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Affiliation(s)
- Bingmin Li
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Wenzhi Hu
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Kui Ma
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Cuiping Zhang
- b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
| | - Xiaobing Fu
- a Wound Healing and Cell Biology Laboratory, Institute of Basic Medicine Science, College of Life Science , Chinese PLA General Hospital , Beijing , People's Republic of China.,b Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration , First Hospital Affiliated to General Hospital of PLA , Beijing , China
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19
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Brément T, Cossec C, Roux C, Knol AC, Dréno B, Khammari A, Bourdeau P, Bruet V. Expression of Three Adipokines (Adiponectin, Leptin and Resistin) in Normal Canine Skin: a Pilot Study. J Comp Pathol 2018; 167:82-90. [PMID: 30503576 DOI: 10.1016/j.jcpa.2018.10.179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/17/2018] [Accepted: 10/26/2018] [Indexed: 01/19/2023]
Abstract
Adipokines are biologically active cytokines that are mainly produced in adipose tissue. There is evidence, in man and mice, that some adipokines may be secreted in other tissues including the vascular endothelium, epithelia and sebaceous glands. Moreover, modified serum levels of adipokines have been detected in people with acne vulgaris or psoriasis; it is suspected that adipokines could contribute to local and systemic inflammatory conditions. We aimed to evaluate the expression of three adipokines (i.e. leptin, adiponectin and resistin) in normal canine skin. Formalin-fixed, paraffin wax-embedded punch biopsy samples were obtained from the sparsely-haired skin of the caudal ventral abdomen of a single clinically healthy dog with no history of skin disease. Immunohistochemistry was applied, using rabbit polyclonal primary antibodies specific for leptin, adiponectin and resistin. Adipokines were not expressed in normal canine dermis or hypodermis. In contrast, they were detected in the keratinocytes of all epidermal layers and hair follicle segments, sebocytes, apocrine gland cells and in the vascular endothelium. This is the first report on the expression of adipokines in normal canine skin, a first step in studying their role in the skin physiology and inflammatory skin diseases of dogs.
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Affiliation(s)
- T Brément
- Dermatology/Parasitology/Mycology Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes, France
| | - C Cossec
- NP3 Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes 44307, France
| | - C Roux
- Dermatology/Parasitology/Mycology Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes, France
| | - A C Knol
- CRCINA, INSERM, University of Angers, University of Nantes, Nantes, France
| | - B Dréno
- CRCINA, INSERM, University of Angers, University of Nantes, Nantes, France; Dermatology Service, CIC1413, CHU Nantes, Nantes, France
| | - A Khammari
- CRCINA, INSERM, University of Angers, University of Nantes, Nantes, France; Dermatology Service, CIC1413, CHU Nantes, Nantes, France
| | - P Bourdeau
- Dermatology/Parasitology/Mycology Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes, France; NP3 Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes 44307, France
| | - V Bruet
- Dermatology/Parasitology/Mycology Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes, France; NP3 Unit, School of Veterinary Medicine-ONIRIS, University of Nantes, CS 40706, Nantes 44307, France.
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20
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Sasaki M, Shinozaki S, Morinaga H, Kaneki M, Nishimura E, Shimokado K. iNOS inhibits hair regeneration in obese diabetic (ob/ob) mice. Biochem Biophys Res Commun 2018; 501:893-897. [PMID: 29763605 DOI: 10.1016/j.bbrc.2018.05.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 05/11/2018] [Indexed: 11/17/2022]
Abstract
Previous studies have shown that androgenic alopecia is associated with metabolic syndrome and diabetes. However, the detailed mechanism whereby diabetes causes alopecia still remains unclear. We focused on the inflammatory response that is caused by diabetes or obesity, given that inflammation is a risk factor for hair loss. Inducible nitric oxide synthase (iNOS) is known to be upregulated under conditions of acute or chronic inflammation. To clarify the potential role of iNOS in diabetes-related alopecia, we generated obese diabetic iNOS-deficient (ob/ob; iNOS-KO mice). We observed that ob/ob; iNOS-KO mice were potentiated for the transition from telogen (rest phase) to anagen (growth phase) in the hair cycle compared with iNOS-proficient ob/ob mice. To determine the effect of nitric oxide (NO) on the hair cycle, we administered an iNOS inhibitor intraperitoneally (compound 1400 W, 10 mg/kg) or topically (10% aminoguanidine) in ob/ob mice. We observed that iNOS inhibitors promoted anagen transition in ob/ob mice. Next, we administered an NO donor (S-nitrosoglutathione, GSNO), to test whether NO has the telogen elongation effects. The NO donor was sufficient to induce telogen elongation in wild-type mice. Together, our data indicate that iNOS-derived NO plays a role in telogen elongation under the inflammatory conditions associated with diabetes in mice.
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Affiliation(s)
- Mari Sasaki
- Department of Geriatrics and Vascular Medicine, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan
| | - Shohei Shinozaki
- Department of Geriatrics and Vascular Medicine, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan; Department of Arteriosclerosis and Vascular Biology, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan.
| | - Hironobu Morinaga
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masao Kaneki
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Emi Nishimura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kentaro Shimokado
- Department of Geriatrics and Vascular Medicine, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan
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21
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Abstract
Although the major white adipose depots evolved primarily to store energy, secrete hormones and thermo-insulate the body, multiple secondary depots developed additional specialized and unconventional functions. Unlike any other fat tissue, dermal white adipose tissue (dWAT) evolved a large repertoire of novel features that are central to skin physiology, which we discuss in this Review. dWAT exists in close proximity to hair follicles, the principal appendages of the skin that periodically grow new hairs. Responding to multiple hair-derived signals, dWAT becomes closely connected to cycling hair follicles and periodically cycles itself. At the onset of new hair growth, hair follicles secrete activators of adipogenesis, while at the end of hair growth, a reduction in the secretion of activators or potentially, an increase in the secretion of inhibitors of adipogenesis, results in fat lipolysis. Hair-driven cycles of dWAT remodelling are uncoupled from size changes in other adipose depots that are controlled instead by systemic metabolic demands. Rich in growth factors, dWAT reciprocally signals to hair follicles, altering the activation state of their stem cells and modulating the pace of hair regrowth. dWAT cells also facilitate skin repair following injury and infection. In response to wounding, adipose progenitors secrete repair-inducing activators, while bacteria-sensing adipocytes produce antimicrobial peptides, thus aiding innate immune responses in the skin.
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Affiliation(s)
- Christian F Guerrero-Juarez
- Department of Developmental and Cell Biology, 2011 Biological Sciences III, University of California, Irvine, Irvine, California 92697, USA
- Sue and Bill Gross Stem Cell Research Center, 845 Health Sciences Road, University of California, Irvine, Irvine, California 92697, USA
- Center for Complex Biological Systems, 2620 Biological Sciences III, University of California, Irvine, Irvine, California 92697, USA
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, 2011 Biological Sciences III, University of California, Irvine, Irvine, California 92697, USA
- Sue and Bill Gross Stem Cell Research Center, 845 Health Sciences Road, University of California, Irvine, Irvine, California 92697, USA
- Center for Complex Biological Systems, 2620 Biological Sciences III, University of California, Irvine, Irvine, California 92697, USA
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22
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Harada K, Maeda T, Matsubayashi J, Uchiyama M, Irisawa R, Go K, Tsuboi R. Centrifugal lipodystrophy of the scalp manifesting as centrifugal lipodystrophic alopecia. Clin Exp Dermatol 2017; 43:286-290. [PMID: 29266423 DOI: 10.1111/ced.13328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2017] [Indexed: 11/29/2022]
Abstract
Centrifugal lipodystrophy (CLD), characterized by a depressed lesion in the abdominal skin, is a chronic disease occurring more often among younger patients of East Asian descent. We present an extremely unusual case of CLD of the scalp associated with reversible hair loss. The patient demonstrated alopecia in the frontal, temporal and occipital areas of the scalp, which connected to form a ring-shaped area of hair loss. Curiously, the area of hair loss gradually expanded outwards while the central region showed normal hair regrowth. Immunohistochemical analysis demonstrated reduced expression of leptin, an adipokine capable of inducing the anagen phase of the hair cycle, in the adipose tissue, associated with active inflammation. By contrast, recovery of leptin expression was observed at sites of healed inflammatory lesions, suggesting that reversible hair loss might be caused by a change in leptin expression in adipose tissue.
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Affiliation(s)
- K Harada
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - T Maeda
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - J Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - M Uchiyama
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - R Irisawa
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - K Go
- Dermatology GO Clinic, Tokyo, Japan
| | - R Tsuboi
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
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23
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Epidermal E-Cadherin Dependent β-Catenin Pathway Is Phytochemical Inducible and Accelerates Anagen Hair Cycling. Mol Ther 2017; 25:2502-2512. [PMID: 28803863 DOI: 10.1016/j.ymthe.2017.07.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 07/06/2017] [Accepted: 07/16/2017] [Indexed: 01/29/2023] Open
Abstract
Unlike the epidermis, which regenerates continually, hair follicles anchored in the subcutis periodically regenerate by spontaneous repetitive cycles of growth (anagen), degeneration (catagen), and rest (telogen). The loss of hair follicles in response to injuries or pathologies such as alopecia endangers certain inherent functions of the skin. Thus, it is of interest to understand mechanisms underlying follicular regeneration in adults. In this work, a phytochemical rich in the natural vitamin E tocotrienol (TRF) served as a productive tool to unveil a novel epidermal pathway of hair follicular regeneration. Topical TRF application markedly induced epidermal hair follicle development akin to that during fetal skin development. This was observed in the skin of healthy as well as diabetic mice, which are known to be resistant to anagen hair cycling. TRF suppressed epidermal E-cadherin followed by 4-fold induction of β-catenin and its nuclear translocation. Nuclear β-catenin interacted with Tcf3. Such sequestration of Tcf3 from its otherwise known function to repress pluripotent factors induced the plasticity factors Oct4, Sox9, Klf4, c-Myc, and Nanog. Pharmacological inhibition of β-catenin arrested anagen hair cycling by TRF. This work reports epidermal E-cadherin/β-catenin as a novel pathway capable of inducing developmental folliculogenesis in the adult skin.
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24
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Yang CC, Chung PL, Lin LY, Hughes MW, Tsai YS. Higher plasma leptin is associated with higher risk of androgenetic alopecia in men. Exp Dermatol 2017; 26:524-526. [DOI: 10.1111/exd.13369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Chao-Chun Yang
- Department of Dermatology; National Cheng Kung University Hospital, College of Medicine; National Cheng Kung University; Tainan Taiwan
- International Research Center for Wound Repair and Regeneration; National Cheng Kung University; Tainan Taiwan
| | - Pei-Lun Chung
- Department of Dermatology; National Cheng Kung University Hospital, College of Medicine; National Cheng Kung University; Tainan Taiwan
| | - Li-Yu Lin
- Yuan's Dermatology Clinic; Taichung Taiwan
| | - Michael W. Hughes
- International Research Center for Wound Repair and Regeneration; National Cheng Kung University; Tainan Taiwan
- Institute of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine; National Cheng Kung University; Tainan Taiwan
| | - Yau-Sheng Tsai
- Institute of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine; National Cheng Kung University; Tainan Taiwan
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25
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Shook B, Rivera Gonzalez G, Ebmeier S, Grisotti G, Zwick R, Horsley V. The Role of Adipocytes in Tissue Regeneration and Stem Cell Niches. Annu Rev Cell Dev Biol 2016; 32:609-631. [PMID: 27146311 PMCID: PMC5157158 DOI: 10.1146/annurev-cellbio-111315-125426] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Classically, white adipose tissue (WAT) was considered an inert component of connective tissue but is now appreciated as a major regulator of metabolic physiology and endocrine homeostasis. Recent work defining how WAT develops and expands in vivo emphasizes the importance of specific locations of WAT or depots in metabolic regulation. Interestingly, mature white adipocytes are integrated into several tissues. A new perspective regarding the in vivo regulation and function of WAT in these tissues has highlighted an essential role of adipocytes in tissue homeostasis and regeneration. Finally, there has been significant progress in understanding how mature adipocytes regulate the pathology of several diseases. In this review, we discuss these novel roles of WAT in the homeostasis and regeneration of epithelial, muscle, and immune tissues and how they contribute to the pathology of several disorders.
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Affiliation(s)
- Brett Shook
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | - Guillermo Rivera Gonzalez
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | - Sarah Ebmeier
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | | | - Rachel Zwick
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | - Valerie Horsley
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
- Department of Dermatology, Yale University, New Haven, Connecticut 06520
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26
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Purba TS, Brunken L, Hawkshaw NJ, Peake M, Hardman J, Paus R. A primer for studying cell cycle dynamics of the human hair follicle. Exp Dermatol 2016; 25:663-8. [PMID: 27094702 DOI: 10.1111/exd.13046] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2016] [Indexed: 12/28/2022]
Abstract
The cell cycle is of major importance to human hair follicle (HF) biology. Not only is continuously active cell cycling required to facilitate healthy hair growth in anagen VI HFs, but perturbations in the cell cycle are likely to be of significance in HF pathology (i.e. in scarring, non-scarring, chemotherapy-induced and androgenic alopecias). However, cell cycle dynamics of the human hair follicle (HF) are poorly understood in contrast to what is known in mouse. The current Methods Review aims at helping to close this gap by presenting a primer that introduces immunohistological/immunofluorescent techniques to study the cell cycle in the human HF. Moreover, this primer encourages the exploitation of the human HF as a powerful and clinically relevant tool to investigate mammalian cell cycle biology in situ. To achieve this, we describe methods to study markers of general 'proliferation' (nuclei count, Ki-67 expression), apoptosis (terminal deoxynucleotidyl transferase dUTP nick-end labelling, cleaved caspase 3), mitosis (phospho-histone H3, 'pS780'), DNA synthesis (5-ethynyl-2'-deoxyuridine) and cell cycle regulation (cyclins) in the human HF. In addition, we provide specific examples of dual immunolabelling for instructive cell cycle analyses and for investigating the cell cycle behaviour of specific HF keratinocyte subpopulations, such as keratin 15+ stem/progenitor cells.
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Affiliation(s)
- Talveen S Purba
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Lars Brunken
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK.,Department of Dermatology, Venerology and Allergy, Charité University Medicine Berlin, Berlin, Germany
| | - Nathan J Hawkshaw
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Michael Peake
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK.,BSc Programme Biological Sciences, University of Huddersfield, Huddersfield, UK
| | - Jonathan Hardman
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Ralf Paus
- Centre for Dermatology Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK.,Department of Dermatology, University of Münster, Münster, Germany
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27
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Chen CC, Plikus MV, Tang PC, Widelitz RB, Chuong CM. The Modulatable Stem Cell Niche: Tissue Interactions during Hair and Feather Follicle Regeneration. J Mol Biol 2016; 428:1423-40. [PMID: 26196442 PMCID: PMC4716892 DOI: 10.1016/j.jmb.2015.07.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 12/27/2022]
Abstract
Hair and feathers are unique because (1) their stem cells are contained within a follicle structure, (2) they undergo cyclic regeneration repetitively throughout life, (3) regeneration occurs physiologically in healthy individuals and (4) regeneration is also induced in response to injury. Precise control of this cyclic regeneration process is essential for maintaining the homeostasis of living organisms. While stem cells are regulated by the intra-follicle-adjacent micro-environmental niche, this niche is also modulated dynamically by extra-follicular macro-environmental signals, allowing stem cells to adapt to a larger changing environment and physiological needs. Here we review several examples of macro-environments that communicate with the follicles: intradermal adipose tissue, innate immune system, sex hormones, aging, circadian rhythm and seasonal rhythms. Related diseases are also discussed. Unveiling the mechanisms of how stem cell niches are modulated provides clues for regenerative medicine. Given that stem cells are hard to manipulate, focusing translational therapeutic applications at the environments appears to be a more practical approach.
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Affiliation(s)
- Chih-Chiang Chen
- Department of Pathology, University of Southern California, Los Angeles, CA 90033, USA; Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan 112; Institute of Clinical Medicine and Department of Dermatology, National Yang-Ming University, Taipei, Taiwan 112
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, Sue and Bill Gross Stem Cell Research Center, Center for Complex Biological Systems, University of California, Irvine, CA 92697, USA
| | - Pin-Chi Tang
- Department of Pathology, University of Southern California, Los Angeles, CA 90033, USA; Department of Animal Science and Center for the Integrative and Evolutionary, National Chung Hsing University, Taichung, Taiwan 402
| | - Randall B Widelitz
- Department of Pathology, University of Southern California, Los Angeles, CA 90033, USA
| | - Cheng Ming Chuong
- Department of Pathology, University of Southern California, Los Angeles, CA 90033, USA; International Laboratory of Wound Repair and Regeneration, Graduated Institute of Clinical Medicine, National Cheng Kung University, Tainan, Taiwan 701; Integrative Stem Cell Center, China Medical University, Taichung, Taiwan 404.
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28
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Sasaki M, Shinozaki S, Shimokado K. Sulforaphane promotes murine hair growth by accelerating the degradation of dihydrotestosterone. Biochem Biophys Res Commun 2016; 472:250-4. [DOI: 10.1016/j.bbrc.2016.02.099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 02/23/2016] [Indexed: 11/29/2022]
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29
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Tasaki N, Minematsu T, Mugita Y, Ikeda SI, Nakagami G, Sanada H. Telogen elongation in the hair cycle of ob/ob mice. Biosci Biotechnol Biochem 2016; 80:74-9. [DOI: 10.1080/09168451.2015.1069693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
Alopecia impairs the physical and mental health of patients. We have previously shown that 8-week-old ob/ob mice have no reactivity to depilation, which is a stimulus that induces anagen transition in normal mice, while no hair cycle abnormalities have been reported in other studies until mice reach 7 weeks of age. Therefore, we hypothesized that ob/ob mice have abnormalities in hair cycle progression beyond 7 weeks of age. We examined 6- to 24-week-old ob/ob and 6- to 10-week-old normal mice. After acclimation, the dorsal skin was harvested and the hair cycle phase was identified histologically and immunohistochemically. Normal mice showed catagen–telogen and telogen–anagen transitions at 6 and 8–9 weeks old, respectively. In contrast, the anagen–catagen transition was observed in 7-week-old mice and the telogen phase was maintained from 10 to 24 weeks in most ob/ob mice. These results suggests that ob/ob mice are a possible model animal for telogen effluvium.
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Affiliation(s)
- Natsumi Tasaki
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takeo Minematsu
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuko Mugita
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shin-ichi Ikeda
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Gojiro Nakagami
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiromi Sanada
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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30
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Watabe R, Yamaguchi T, Kabashima-Kubo R, Yoshioka M, Nishio D, Nakamura M. Leptin controls hair follicle cycling. Exp Dermatol 2015; 23:228-9. [PMID: 24494978 DOI: 10.1111/exd.12335] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2014] [Indexed: 12/19/2022]
Abstract
Leptin is a cytokine well known for its ability to control body weight and energy metabolism. Several lines of evidence have recently revealed that leptin also plays an important role in wound healing and immune modulation in skin. Sumikawa et al. Exp Dermatol 2014 evaluated the effect of leptin on hair follicle cycling using mutant and wild-type mice. They report that leptin is produced in dermal papilla cells in hair follicles and that leptin receptor-deficient db/db mice show an abnormality in hair follicle cycling. Moreover, leptin injection induced the transition into the growth stage of the hair cycle (anagen). On this basis, it now deserves exploration whether leptin-mediated signalling is a key stimulus for anagen induction and whether this may be targeted to manage human hair disorders with defect in the control of hair follicle cycling.
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Affiliation(s)
- Reiko Watabe
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
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31
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Gensure RC. Parathyroid hormone-related peptide and the hair cycle - is it the agonists or the antagonists that cause hair growth? Exp Dermatol 2014; 23:865-7. [DOI: 10.1111/exd.12504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Robert C. Gensure
- Pediatric Endocrinology; Children's Hospital at Montefiore and Albert Einstein College of Medicine; Bronx NY USA
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32
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Jimenez F, Poblet E, Izeta A. Reflections on how wound healing-promoting effects of the hair follicle can be translated into clinical practice. Exp Dermatol 2014; 24:91-4. [DOI: 10.1111/exd.12521] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2014] [Indexed: 12/20/2022]
Affiliation(s)
| | - Enrique Poblet
- Department of Pathology; Hospital Universitario Reina Sofía; Murcia Spain
| | - Ander Izeta
- Tissue Engineering Laboratory; Instituto Biodonostia; Hospital Universitario Donostia; San Sebastián Spain
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33
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Liu C, Yang J, Qu L, Gu M, Liu Y, Gao J, Collaudin C, Loussouarn G. Changes in Chinese hair growth along a full year. Int J Cosmet Sci 2014; 36:531-6. [DOI: 10.1111/ics.12151] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 06/15/2014] [Indexed: 11/27/2022]
Affiliation(s)
- C. Liu
- L'Oréal R & I; Jinyu Rd No. 550 Shanghai 201206 China
| | - J. Yang
- L'Oréal R & I; Jinyu Rd No. 550 Shanghai 201206 China
| | - L. Qu
- L'Oréal R & I; Jinyu Rd No. 550 Shanghai 201206 China
| | - M. Gu
- L'Oréal R & I; Jinyu Rd No. 550 Shanghai 201206 China
| | - Y. Liu
- L'Oréal R & I; Jinyu Rd No. 550 Shanghai 201206 China
| | - J. Gao
- L'Oréal R & I; Jinyu Rd No. 550 Shanghai 201206 China
| | - C. Collaudin
- L'Oréal R & I; 20120611-13 rue Dora Maar Saint-Ouen 93400 France
| | - G. Loussouarn
- L'Oréal R & I; 20120611-13 rue Dora Maar Saint-Ouen 93400 France
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34
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Zanzottera F, Lavezzari E, Trovato L, Icardi A, Graziano A. Adipose Derived Stem Cells and Growth Factors Applied on Hair Transplantation. Follow-Up of Clinical Outcome. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/jcdsa.2014.44036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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