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Ma B, Liu D, Wang Z, Zhang D, Jian Y, Zhang K, Zhou T, Gao Y, Fan Y, Ma J, Gao Y, Chen Y, Chen S, Liu J, Li X, Li L. A Top-Down Design Approach for Generating a Peptide PROTAC Drug Targeting Androgen Receptor for Androgenetic Alopecia Therapy. J Med Chem 2024; 67:10336-10349. [PMID: 38836467 DOI: 10.1021/acs.jmedchem.4c00828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
While large-scale artificial intelligence (AI) models for protein structure prediction and design are advancing rapidly, the translation of deep learning models for practical macromolecular drug development remains limited. This investigation aims to bridge this gap by combining cutting-edge methodologies to create a novel peptide-based PROTAC drug development paradigm. Using ProteinMPNN and RFdiffusion, we identified binding peptides for androgen receptor (AR) and Von Hippel-Lindau (VHL), followed by computational modeling with Alphafold2-multimer and ZDOCK to predict spatial interrelationships. Experimental validation confirmed the designed peptide's binding ability to AR and VHL. Transdermal microneedle patching technology was seamlessly integrated for the peptide PROTAC drug delivery in androgenic alopecia treatment. In summary, our approach provides a generic method for generating peptide PROTACs and offers a practical application for designing potential therapeutic drugs for androgenetic alopecia. This showcases the potential of interdisciplinary approaches in advancing drug development and personalized medicine.
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Affiliation(s)
- Bohan Ma
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Donghua Liu
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhe Wang
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Dize Zhang
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yanlin Jian
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Kun Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Tianyang Zhou
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yibo Gao
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yizeng Fan
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian Ma
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yang Gao
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yule Chen
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Si Chen
- School of Medicine, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Jing Liu
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiang Li
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Lei Li
- Department of Urology, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710049, China
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Zhou S, Li Z, Li X, Ye Y, Wang M, Jiang J, Tao L, Wang Y, Tung CT, Chung Y, Kim E, Shen X, Xu X, Xiang X, Xie Q, Zhang J, Wu W, Lin X, Chuong CM, Lei M. Crosstalk between endothelial cells and dermal papilla entails hair regeneration and angiogenesis during aging. J Adv Res 2024:S2090-1232(24)00183-8. [PMID: 38718895 DOI: 10.1016/j.jare.2024.05.006] [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: 02/23/2024] [Revised: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/19/2024] Open
Abstract
INTRODUCTION Tissues maintain their function through interaction with microenvironment. During aging, both hair follicles and blood vessels (BV) in skin undergo degenerative changes. However, it is elusive whether the changes are due to intrinsic aging changes in hair follicles or blood vessels respectively, or their interactions. OBJECTIVE To explore how hair follicles and blood vessels interact to regulate angiogenesis and hair regeneration during aging. METHODS Single-cell RNA-sequencing (scRNA-seq) analyses were used to identify the declined ability of dermal papilla (DP) and endothelial cells (ECs) during aging. CellChat and CellCall were performed to investigate interaction between DP and ECs. Single-cell metabolism (scMetabolism) analysis and iPATH were applied to analyze downstream metabolites in DP and ECs. Hair-plucking model and mouse cell organoid model were used for functional studies. RESULTS During aging, distance and interaction between DP and ECs are decreased. DP interacts with ECs, with decreased EDN1-EDNRA signaling from ECs to DP and CTF1-IL6ST signaling from DP to ECs during aging. ECs-secreted EDN1 binds to DP-expressed EDNRA which enhances Taurine (TA) metabolism to promote hair regeneration. DP-emitted CTF1 binds to ECs-expressed IL6ST which activates alpha-linolenic acid (ALA) metabolism to promote angiogenesis. Activated EDN1-EDNRA-TA signaling promotes hair regeneration in aged mouse skin and in organoid cultures, and increased CTF1-IL6ST-ALA signaling also promotes angiogenesis in aged mouse skin and organoid cultures. CONCLUSIONS Our finding reveals reciprocal interactions between ECs and DP. ECs releases EDN1 sensed by DP to activate TA metabolism which induces hair regeneration, while DP emits CTF1 signal received by ECs to enhance ALA metabolism which promotes angiogenesis. Our study provides new insights into mutualistic cellular crosstalk between hair follicles and blood vessels, and identifies novel signaling contributing to the interactions of hair follicles and blood vessels in normal and aged skin.
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Affiliation(s)
- Siyi Zhou
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Zeming Li
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Xinzhu Li
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Yuanli Ye
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Mengyue Wang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Jingwei Jiang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Lihe Tao
- Zhejiang Keyikaijian Bioengineering Co., Ltd, Beijing 100191, China.
| | - Yan Wang
- Zhejiang Keyikaijian Bioengineering Co., Ltd, Beijing 100191, China.
| | - Chen-Tsen Tung
- Zhejiang Keyikaijian Bioengineering Co., Ltd, Beijing 100191, China.
| | | | - Eunmi Kim
- Caregen Co., Ltd, Gyeonggi-do 14119, Korea.
| | - Xinyu Shen
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Xuegang Xu
- Department of Dermatology, The First Hospital of China Medical University NHC Key Laboratory of Immunodermatology (China Medical University), Key Laboratory of Immunodermatology (China Medical University), Shenyang, Liaoning Province 110001, China.
| | - Xiao Xiang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Qiaoli Xie
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Jinwei Zhang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Wang Wu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Xia Lin
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Cheng-Ming Chuong
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Mingxing Lei
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.
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Park S, Lim YJ, Kim HS, Shin HJ, Kim JS, Lee JN, Lee JH, Bae S. Phloroglucinol Enhances Anagen Signaling and Alleviates H 2O 2-Induced Oxidative Stress in Human Dermal Papilla Cells. J Microbiol Biotechnol 2024; 34:812-827. [PMID: 38480001 DOI: 10.4014/jmb.2311.11047] [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: 11/30/2023] [Revised: 02/14/2024] [Accepted: 02/27/2024] [Indexed: 05/16/2024]
Abstract
Phloroglucinol (PG) is one of the abundant isomeric benzenetriols in brown algae. Due to its polyphenolic structure, PG exhibits various biological activities. However, the impact of PG on anagen signaling and oxidative stress in human dermal papilla cells (HDPCs) is unknown. In this study, we investigated the therapeutic potential of PG for improving hair loss. A non-cytotoxic concentration of PG increased anagen-inductive genes and transcriptional activities of β-Catenin. Since several anagen-inductive genes are regulated by β-Catenin, further experiments were performed to elucidate the molecular mechanism by which PG upregulates anagen signaling. Various biochemical analyses revealed that PG upregulated β-Catenin signaling without affecting the expression of Wnt. In particular, PG elevated the phosphorylation of protein kinase B (AKT), leading to an increase in the inhibitory phosphorylation of glycogen synthase kinase 3 beta (GSK3β) at serine 9. Treatment with the selective phosphoinositide 3-kinase/AKT inhibitor, LY294002, restored the increased AKT/GSK3β/β-Catenin signaling and anagen-inductive proteins induced by PG. Moreover, conditioned medium from PG-treated HDPCs promoted the proliferation and migration of human epidermal keratinocytes via the AKT signaling pathway. Subsequently, we assessed the antioxidant activities of PG. PG ameliorated the elevated oxidative stress markers and improved the decreased anagen signaling in hydrogen peroxide (H2O2)-induced HDPCs. The senescence-associated β-galactosidase staining assay also demonstrated that the antioxidant abilities of PG effectively mitigated H2O2-induced senescence. Overall, these results indicate that PG potentially enhances anagen signaling and improves oxidative stress-induced cellular damage in HDPCs. Therefore, PG can be employed as a novel therapeutic component to ameliorate hair loss symptoms.
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Affiliation(s)
- Seokmuk Park
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Ye Jin Lim
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hee Su Kim
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hee-Jae Shin
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Ji-Seon Kim
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jae Nam Lee
- Department of Cosmetology, Graduate School of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jae Ho Lee
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Seunghee Bae
- Department of Cosmetics Engineering, Konkuk University, Seoul 05029, Republic of Korea
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He Z, Zhang Y, Liu Z, Guo T, Ai X, He Y, Hou X, Feng N. Synergistic treatment of androgenetic alopecia with follicular co-delivery of minoxidil and cedrol in metal-organic frameworks stabilized by covalently cross-linked cyclodextrins. Int J Pharm 2024; 654:123948. [PMID: 38417724 DOI: 10.1016/j.ijpharm.2024.123948] [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: 11/01/2023] [Revised: 02/03/2024] [Accepted: 02/25/2024] [Indexed: 03/01/2024]
Abstract
Androgenetic alopecia seriously affects the physical and mental health of patients. The main clinical therapeutic agent, minoxidil tincture, is challenged by solvent irritation and dose-dependent side effects. Our recent work has identified a biosafety natural product, cedrol, that is synergistic in combination with minoxidil, thereby improving medication safety by substantially reducing the clinical dose of minoxidil. In addition, ccross-linked CD-MOF were designed as carriers for hair follicle delivery, and γ-CD in the carriers was cross-linked by diphenyl carbonate with covalent bonds to protect the CD-MOF from rapid disintegration in an aqueous environment. This improved nanocarrier has a drug loading of 25%, whereas nanocarriers increased drug delivery to the hair follicles through ratchet effect, and increased human dermal papilla cells uptake of drugs via endocytosis pathways mainly mediated by lattice proteins, energy-dependent active transport, and lipid raft-dependent, thus improved cell viability, proliferation, and migration, followed by significantly enhancing the anti-androgenetic alopecia effect, with cedrol focusing on inhibiting 5α-reductase and activating Shh/Gli pathway, and minoxidil, which up-regulated VEGF, down-regulated TGF-β, and activated ERK/AKT pathway. This drug combination provides a new therapeutic strategy for androgenetic alopecia, while the newly developed cross-linked CD-MOF has been shown to serve as a promising follicular delivery vehicle.
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Affiliation(s)
- Zehui He
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Yongtai Zhang
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhenda Liu
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Teng Guo
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xinyi Ai
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yuanzhi He
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiaolin Hou
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Nianping Feng
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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5
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Zheng M, Kim MH, Park SG, Kim WS, Oh SH, Sung JH. CXCL12 Neutralizing Antibody Promotes Hair Growth in Androgenic Alopecia and Alopecia Areata. Int J Mol Sci 2024; 25:1705. [PMID: 38338982 PMCID: PMC10855715 DOI: 10.3390/ijms25031705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/19/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
We had previously investigated the expression and functional role of C-X-C Motif Chemokine Ligand 12 (CXCL12) during the hair cycle progression. CXCL12 was highly expressed in stromal cells such as dermal fibroblasts (DFs) and inhibition of CXCL12 increased hair growth. Therefore, we further investigated whether a CXCL12 neutralizing antibody (αCXCL12) is effective for androgenic alopecia (AGA) and alopecia areata (AA) and studied the underlying molecular mechanism for treating these diseases. In the AGA model, CXCL12 is highly expressed in DFs. Subcutaneous (s.c.) injection of αCXCL12 significantly induced hair growth in AGA mice, and treatment with αCXCL12 attenuated the androgen-induced hair damage in hair organ culture. Androgens increased the secretion of CXCL12 from DFs through the androgen receptor (AR). Secreted CXCL12 from DFs increased the expression of the AR and C-X-C Motif Chemokine Receptor 4 (CXCR4) in dermal papilla cells (DPCs), which induced hair loss in AGA. Likewise, CXCL12 expression is increased in AA mice, while s.c. injection of αCXCL12 significantly inhibited hair loss in AA mice and reduced the number of CD8+, MHC-I+, and MHC-II+ cells in the skin. In addition, injection of αCXCL12 also prevented the onset of AA and reduced the number of CD8+ cells. Interferon-γ (IFNγ) treatment increased the secretion of CXCL12 from DFs through the signal transducer and activator of transcription 3 (STAT3) pathway, and αCXCL12 treatment protected the hair follicle from IFNγ in hair organ culture. Collectively, these results indicate that CXCL12 is involved in the progression of AGA and AA and antibody therapy for CXCL12 is promising for hair loss treatment.
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Affiliation(s)
- Mei Zheng
- Epi Biotech Co., Ltd., Incheon 21983, Republic of Korea; (M.Z.); (M.-H.K.)
| | - Min-Ho Kim
- Epi Biotech Co., Ltd., Incheon 21983, Republic of Korea; (M.Z.); (M.-H.K.)
| | - Sang-Gyu Park
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea;
| | - Won-Serk Kim
- Department of Dermatology, School of Medicine, Sungkyunkwan University, Kangbuk Samsung Hospital, Seoul 03181, Republic of Korea;
| | - Sang-Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea;
| | - Jong-Hyuk Sung
- Epi Biotech Co., Ltd., Incheon 21983, Republic of Korea; (M.Z.); (M.-H.K.)
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Kim Y, Lee JO, Lee JM, Lee MH, Kim HM, Chung HC, Kim DU, Lee JH, Kim BJ. Low Molecular Weight Collagen Peptide (LMWCP) Promotes Hair Growth by Activating the Wnt/GSK-3β/β-Catenin Signaling Pathway. J Microbiol Biotechnol 2024; 34:17-28. [PMID: 37830229 PMCID: PMC10840484 DOI: 10.4014/jmb.2308.08013] [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: 08/09/2023] [Revised: 09/05/2023] [Accepted: 09/21/2023] [Indexed: 10/14/2023]
Abstract
Low molecular weight collagen peptide (LMWCP) is a collagen hydrolysate derived from fish. We investigated the effects of LMWCP on hair growth using human dermal papilla cells (hDPCs), human hair follicles (hHFs), patch assay, and telogenic C57BL/6 mice, while also examining the underlying mechanisms of its action. LMWCP promoted proliferation and mitochondrial potential, and the secretion of hair growth-related factors, such as EGF, HB-EGF, FGF-4, and FGF-6 in hDPCs. Patch assay showed that LMWCP increased the neogeneration of new HFs in a dose-dependent manner. This result correlated with an increase in the expression of dermal papilla (DP) signature genes such as, ALPL, SHH, FGF7, and BMP-2. LMWCP upregulated phosphorylation of glycogen synthase kinase-3β (GSK-3β) and β-catenin, and nuclear translocation of β-catenin, and it increased the expression of Wnt3a, LEF1, VEGF, ALP, and β-catenin. LMWCP promoted the growth of hHFs and increased the expression of β-catenin and VEGF. Oral administration of LMWCP to mice significantly stimulated hair growth. The expression of Wnt3a, β-catenin, PCNA, Cyclin D1, and VEGF was also elevated in the back skin of the mice. Furthermore, LMWCP increased the expression of cytokeratin and Keratin Type I and II. Collectively, these findings demonstrate that LMWCP has the potential to increase hair growth via activating the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Yujin Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
| | - Jung Ok Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jung Min Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Mun-Hoe Lee
- Health Food Research and Development, NEWTREE Co., Ltd., Seoul 05604, Republic of Korea
| | - Hyeong-Min Kim
- Health Food Research and Development, NEWTREE Co., Ltd., Seoul 05604, Republic of Korea
| | - Hee-Chul Chung
- Health Food Research and Development, NEWTREE Co., Ltd., Seoul 05604, Republic of Korea
| | - Do-Un Kim
- Health Food Research and Development, NEWTREE Co., Ltd., Seoul 05604, Republic of Korea
| | - Jin-Hee Lee
- Health Food Research and Development, NEWTREE Co., Ltd., Seoul 05604, Republic of Korea
| | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
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Ma C, Cheng M, Wu Y, Xu X. The Role of Mesenchymal Stem Cells in Hair Regeneration and Hair Cycle. Stem Cells Dev 2024; 33:1-10. [PMID: 37847179 DOI: 10.1089/scd.2023.0156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023] Open
Abstract
The health of hair is directly related to people's health and appearance. Hair has key physiological functions, including skin protection and temperature regulation. Hair follicle (HF) is a vital mini-organ that directly impacts hair growth. Besides, various signaling pathways and molecules regulate the growth cycle transition of HFs. Hair and its regeneration studies have attracted much interest in recent years with the increasing rate of alopecia. Mesenchymal stem cells (MSCs), as pluripotent stem cells, can differentiate into fat, bone, and cartilage and stimulate regeneration and immunological regulation. MSCs have been widely employed to treat various clinical diseases, such as bone and cartilage injury, nerve injury, and lung injury. Besides, MSCs can be used for treatment of hair diseases due to their regenerative and immunomodulatory abilities. This review aimed to assess MSCs' treatment for alopecia, pertinent signaling pathways, and new material for hair regeneration in the last 5 years.
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Affiliation(s)
- Cong Ma
- Department of Dermatology, The First Hospital of Inner Mongolia University for Nationalities, Tongliao, China
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
- Key Laboratory of Immunodermatology, Ministry of Education and NHC, National Joint Engineering Research Center for Theranostics of Immunological Skin Diseases, Shenyang, Liaoning, China
| | - Ming Cheng
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
- Key Laboratory of Immunodermatology, Ministry of Education and NHC, National Joint Engineering Research Center for Theranostics of Immunological Skin Diseases, Shenyang, Liaoning, China
| | - Yan Wu
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
- Key Laboratory of Immunodermatology, Ministry of Education and NHC, National Joint Engineering Research Center for Theranostics of Immunological Skin Diseases, Shenyang, Liaoning, China
| | - Xuegang Xu
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
- Key Laboratory of Immunodermatology, Ministry of Education and NHC, National Joint Engineering Research Center for Theranostics of Immunological Skin Diseases, Shenyang, Liaoning, China
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8
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Dong W, Jin X, Mo S. Acupuncture for androgenetic alopecia: a report of two cases. Acupunct Med 2023:9645284231210880. [PMID: 38149591 DOI: 10.1177/09645284231210880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Affiliation(s)
- Wendi Dong
- Foshan Clinical Medical College, Guangzhou University of Chinese Medicine, Foshan, China
| | - Xiaxia Jin
- Chinese Medicine Resource Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shan Mo
- Foshan Clinical Medical College, Guangzhou, China
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Wang W, Wang H, Long Y, Li Z, Li J. Controlling Hair Loss by Regulating Apoptosis in Hair Follicles: A Comprehensive Overview. Biomolecules 2023; 14:20. [PMID: 38254620 PMCID: PMC10813359 DOI: 10.3390/biom14010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Apoptosis is a physiological process that occurs in all cell types of the human body, and it profoundly changes the fate of hair by affecting hair follicle cells. This review outlines the cellular changes, intrinsic biochemical characteristics, and mechanisms underlying apoptosis and summarizes the hair follicle life cycle, including development, cycle stages, and corresponding cellular changes. Finally, the relationship between apoptosis and the hair cycle is discussed and the significance of apoptosis in hair loss conditions and drug treatments is highlighted. Apoptosis induces cellular changes and exhibits distinctive properties through intricate signaling pathways. Hair follicles undergo cyclic periods of growth, regression, and dormancy. Apoptosis is closely correlated with the regression phase by triggering hair follicle cell death and shedding. Regulation of apoptosis in hair follicles plays an essential role in hair loss due to maladies and drug treatments. Mitigating apoptosis can enhance hair growth and minimize hair loss. A comprehensive understanding of the correlation between apoptosis and the hair cycle can facilitate the development of novel treatments to prevent hair loss and stimulate hair regeneration.
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Affiliation(s)
- Wuji Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Honglan Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Yunluan Long
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Zheng Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Jingjie Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China; (W.W.); (H.W.); (Y.L.); (Z.L.)
- Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi 563006, China
- Department of Pharmacology, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
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10
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Liang A, Fang Y, Ye L, Meng J, Wang X, Chen J, Xu X. Signaling pathways in hair aging. Front Cell Dev Biol 2023; 11:1278278. [PMID: 38033857 PMCID: PMC10687558 DOI: 10.3389/fcell.2023.1278278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Hair follicle (HF) homeostasis is regulated by various signaling pathways. Disruption of such homeostasis leads to HF disorders, such as alopecia, pigment loss, and hair aging, which is causing severe health problems and aesthetic concerns. Among these disorders, hair aging is characterized by hair graying, hair loss, hair follicle miniaturization (HFM), and structural changes to the hair shaft. Hair aging occurs under physiological conditions, while premature hair aging is often associated with certain pathological conditions. Numerous investigations have been made to determine the mechanisms and explore treatments to prevent hair aging. The most well-known hypotheses about hair aging include oxidative stress, hormonal disorders, inflammation, as well as DNA damage and repair defects. Ultimately, these factors pose threats to HF cells, especially stem cells such as hair follicle stem cells, melanocyte stem cells, and mesenchymal stem cells, which hamper hair regeneration and pigmentation. Here, we summarize previous studies investigating the above mechanisms and the existing therapeutic methods for hair aging. We also provide insights into hair aging research and discuss the limitations and outlook.
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Affiliation(s)
- Aishi Liang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Yingshan Fang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Lan Ye
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Jianda Meng
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Xusheng Wang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Jinsong Chen
- Endocrinology Department, First People’s Hospital of Foshan, Foshan, China
| | - Xuejuan Xu
- Endocrinology Department, First People’s Hospital of Foshan, Foshan, China
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11
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Redmond LC, Limbu S, Farjo B, Messenger AG, Higgins CA. Male pattern hair loss: Can developmental origins explain the pattern? Exp Dermatol 2023; 32:1174-1181. [PMID: 37237288 PMCID: PMC10946844 DOI: 10.1111/exd.14839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
Male pattern hair loss (MPHL), also referred to as male androgenetic alopecia (AGA) is the most common type of non-scarring progressive hair loss, with 80% of men suffering from this condition in their lifetime. In MPHL, the hair line recedes to a specific part of the scalp which cannot be accurately predicted. Hair is lost from the front, vertex, and the crown, yet temporal and occipital follicles remain. The visual effect of hair loss is due to hair follicle miniaturisation, where terminal hair follicles become dimensionally smaller. Miniaturisation is also characterised by a shortening of the growth phase of the hair cycle (anagen), and a prolongation of the dormant phase (kenogen). Together, these changes result in the production of thinner and shorter hair fibres, referred to as miniaturised or vellus hairs. It remains unclear why miniaturisation occurs in this specific pattern, with frontal follicles being susceptible while occipital follicles remain in a terminal state. One main factor we believe to be at play, which will be discussed in this viewpoint, is the developmental origin of the skin and hair follicle dermis on different regions of the scalp.
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Affiliation(s)
| | - Summik Limbu
- Department of BioengineeringImperial College LondonLondonUK
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12
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Park S, Han N, Lee JM, Lee JH, Bae S. Effects of Allium hookeri Extracts on Hair-Inductive and Anti-Oxidative Properties in Human Dermal Papilla Cells. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091919. [PMID: 37176977 PMCID: PMC10181221 DOI: 10.3390/plants12091919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Oxidative stress and cellular senescence in dermal papilla cells (DPCs) are major etiological factors causing hair loss. In this study, the effect of the Allium hookeri extract (AHE) on hair-inductive and anti-oxidative properties was investigated in human DPCs. As a result, it was found that a non-cytotoxic concentration of the extracts increased the viability and size of the human DPC spheroid, which was associated with the increased expression of hair-growth-related genes in cells. To determine whether or not these effects could be attributed to intracellular anti-oxidative effects, liquid chromatography-mass spectrometry alongside various biochemical analyses are conducted herein. An ingredient called alliin was identified as one of the main components. Furthermore, AHE treatment induced a significant decrease in H2O2-mediated cytotoxicities, cell death, and cellular senescence in human DPCs. Upon analyzing these results with a molecular mechanism approach, it was shown that AHE treatment increased β-Catenin and NRF2 translocation into the nucleus while inhibiting the translocation of NF-κB (p50) through p38 and PKA-mediated phosphorylations of GSK3β, an upstream regulator of those proteins. These results overall indicate the possibility that AHE can regulate GSK3β-mediated β-Catenin, NRF2, and NF-κB signaling to enhance hair-inductive properties and ultimately protect against oxidative stress-induced cellular damage in human DPCs.
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Affiliation(s)
- Seokmuk Park
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Nayeon Han
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
- Derma Bio Medical Research Center, Dermato Bio, Inc., 174-1 Songdo-dong, Yeonsu-gu, Incheon 21984, Republic of Korea
| | - Jung-Min Lee
- Derma Bio Medical Research Center, Dermato Bio, Inc., 174-1 Songdo-dong, Yeonsu-gu, Incheon 21984, Republic of Korea
| | - Jae-Ho Lee
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Seunghee Bae
- Department of Cosmetics Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
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13
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Wang C, Zang K, Tang Z, Yang T, Ye X, Dang Y. Hordenine Activated Dermal Papilla Cells and Promoted Hair Regrowth by Activating Wnt Signaling Pathway. Nutrients 2023; 15:nu15030694. [PMID: 36771401 PMCID: PMC9921158 DOI: 10.3390/nu15030694] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 01/31/2023] Open
Abstract
Hordenine is effective in treating hyperpigmentation, fighting diabetes and resisting fibrosis and acute inflammation. However, the role of Hordenine on hair growth has not been elucidated. Here, we found that Hordenine treatments significantly enhance proliferation of primary mouse dermal-papilla cells (DPCs) and increase the activity of DPCs in a dose-dependent manner. Additionally, Hordenine markedly promoted the elongation of the hair shaft in the model of in vitro-cultured mouse vibrissa follicle and accelerated hair regrowth in a mouse model of depilation-induced hair regeneration. Real-time PCR, Western Blot and immunofluorescent assays showed that nuclear β-catenin and its downstream gene expression such as Lef1, Axin2, Cyclin D1 and ALP were greatly upregulated in DPCs and mouse hair follicles after Hordenine treatments. Moreover, the increased DPCs' proliferation and hair shaft elongation of cultured mouse vibrissa follicles induced by Hordenine treatments were rescued by a Wnt/β-catenin signaling inhibitor, FH535. These data indicate that Hordenine can effectively enhance DPCs' activity and accelerate hair regrowth through activating the Wnt/β-catenin signaling pathway. Therefore, these findings suggest Hordenine/its derivatives may be potentially used for preventing and treating alopecia in the future.
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Affiliation(s)
- Caibing Wang
- Institute of Biomedical Sciences, East China Normal University, Shanghai 200241, China
| | - Kai Zang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Science, East China Normal University, Shanghai 200241, China
| | - Zexin Tang
- Institute of Biomedical Sciences, East China Normal University, Shanghai 200241, China
| | - Ting Yang
- Institute of Biomedical Sciences, East China Normal University, Shanghai 200241, China
| | - Xiyun Ye
- Institute of Biomedical Sciences, East China Normal University, Shanghai 200241, China
- Correspondence: (X.Y.); (Y.D.); Tel.: +86-21-5434-5482 (X.Y.)
| | - Yongyan Dang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Science, East China Normal University, Shanghai 200241, China
- Correspondence: (X.Y.); (Y.D.); Tel.: +86-21-5434-5482 (X.Y.)
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14
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Wang R, Zhong T, Bian Q, Zhang S, Ma X, Li L, Xu Y, Gu Y, Yuan A, Hu W, Qin C, Gao J. PROTAC Degraders of Androgen Receptor-Integrated Dissolving Microneedles for Androgenetic Alopecia and Recrudescence Treatment via Single Topical Administration. SMALL METHODS 2023; 7:e2201293. [PMID: 36538748 DOI: 10.1002/smtd.202201293] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Androgenetic alopecia (AGA) is a transracial and cross-gender disease worldwide with a youth-oriented tendency, but it lacks effective treatment. The binding of androgen receptor (AR) and androgen plays an essential role in the occurrence and progression of AGA. Herein, novel proteolysis targeting chimera degrader of AR (AR-PROTAC) is synthesized and integrated with dissolving microneedles (PROTAC-MNs) to achieve AR destruction in hair follicles for AGA treatment. The PROTAC-MNs possess adequate mechanical capabilities for precise AR-PROTAC delivery into the hair follicle-residing regions for AR degradation. After applying only once topically, the PROTAC-MNs achieve an accelerated onset of hair regeneration as compared to the daily application of the first-line topical drug minoxidil. Intriguingly, PROTAC-MNs via single administration still realize superior hair regeneration in AGA recrudescence, which is the major drawback of minoxidil in clinical practice. With the degradation of AR, the PROTAC-MNs successfully regulate the signaling cascade related to hair growth and activate hair follicle stem cells. Furthermore, the PROTAC-MNs do not cause systemic toxicity or androgen deficiency-related chaos in vivo. Collectively, these AR-degrading dissolving microneedles with long-lasting efficacy, one-step administration, and high biocompatibility provide a great therapeutic potential for AGA treatment.
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Affiliation(s)
- Ruxuan Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Tengjiang Zhong
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Marine Biomedical Research Institute of Qingdao, Qingdao, 266071, China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- College of Pharmacy, Inner Mongolia Medical University, Hohhot, 010000, China
| | - Sai Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Marine Biomedical Research Institute of Qingdao, Qingdao, 266071, China
| | - Xiaolu Ma
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Liming Li
- Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266071, China
| | - Yihua Xu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yueting Gu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Anran Yuan
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Weitong Hu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chong Qin
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Marine Biomedical Research Institute of Qingdao, Qingdao, 266071, China
| | - Jianqing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Jiangsu Engineering Research Center for New-type External and Transdermal Preparations, Changzhou, 213149, China
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15
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Liu T, Xiao W, Chen M, Mao R, San X, Peng Q, Zhao Z, Wang Q, Xie H, Deng Z, Li J. Aberrant amino acid metabolism promotes neurovascular reactivity in rosacea. JCI Insight 2022; 7:161870. [PMID: 36219476 DOI: 10.1172/jci.insight.161870] [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: 05/13/2022] [Accepted: 10/05/2022] [Indexed: 12/15/2022] Open
Abstract
Rosacea is a chronic skin disorder characterized by abnormal neurovascular and inflammatory conditions on the central face. Despite increasing evidence suggesting that rosacea is associated with metabolic disorders, the role of metabolism in rosacea pathogenesis remains unknown. Here, via a targeted metabolomics approach, we characterized significantly altered metabolic signatures in patients with rosacea, especially for amino acid-related metabolic pathways. Among these, glutamic acid and aspartic acid were highlighted and positively correlated with the disease severity in patients with rosacea. We further demonstrated that glutamic acid and aspartic acid can facilitate the development of erythema and telangiectasia, typical features of rosacea, in the skin of mice. Mechanistically, glutamic acid and aspartic acid stimulated the production of vasodilation-related neuropeptides from peripheral neurons and keratinocytes and induced the release of nitric oxide from endothelial cells and keratinocytes. Interestingly, we provided evidence showing that doxycycline can improve the symptoms of patients with rosacea possibly by targeting the amino acid metabolic pathway. These findings reveal that abnormal amino acid metabolism promotes neurovascular reactivity in rosacea and raise the possibility of targeting dysregulated metabolism as a promising strategy for clinical treatment.
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Affiliation(s)
- Tangxiele Liu
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Wenqin Xiao
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Mengting Chen
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Mao
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xu San
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qinqin Peng
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhixiang Zhao
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qian Wang
- Hunan Binsis Biotechnology Co., Ltd, Changsha, China
| | - Hongfu Xie
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhili Deng
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology.,Hunan Key Laboratory of Aging Biology, and.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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16
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Yue Z, Yang F, Zhang J, Li J, Chuong CM. Regulation and dysregulation of hair regeneration: aiming for clinical application. CELL REGENERATION (LONDON, ENGLAND) 2022; 11:22. [PMID: 35773427 PMCID: PMC9247129 DOI: 10.1186/s13619-022-00122-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Hair growth and regeneration represents a remarkable example of stem cell function. Recent progress emphasizes the micro- and macro- environment that controls the regeneration process. There is a shift from a stem cell-centered view toward the various layers of regulatory mechanisms that control hair regeneration, which include local growth factors, immune and neuroendocrine signals, and dietary and environmental factors. This is better suited for clinical application in multiple forms of hair disorders: in male pattern hair loss, the stem cells are largely preserved, but androgen signaling diminishes hair growth; in alopecia areata, an immune attack is targeted toward the growing hair follicle without abrogating its regeneration capability. Genome-wide association studies further revealed the genetic bases of these disorders, although the precise pathological mechanisms of the identified loci remain largely unknown. By analyzing the dysregulation of hair regeneration under pathological conditions, we can better address the complex interactions among stem cells, the differentiated progeny, and mesenchymal components, and highlight the critical role of macroenvironment adjustment that is essential for hair growth and regeneration. The poly-genetic origin of these disorders makes the study of hair regeneration an interesting and challenging field.
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Affiliation(s)
- Zhicao Yue
- Department of Cell Biology and Medical Genetics, International Cancer Center, and Guangdong Key Laboratory for Genome Instability and Disease Prevention, Shenzhen University, A7-455 XiLi Campus, Shenzhen, 518060, Guangdong, China.
| | - Fang Yang
- Department of Dermatology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Jianglin Zhang
- Department of Dermatology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Cheng-Ming Chuong
- Department of Pathology, University of Southern California, Los Angeles, CA, USA
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17
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Phillipps J, Raval NS, Musiek A. SnapshotDx Quiz: May 2022. J Invest Dermatol 2022; 142:e43-e49. [DOI: 10.1016/j.jid.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
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