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Xu R, Bai M, Fan Y, Zhu Y, Wang Z, Hui T, Zhang Q, Liu X, Zhang J, Shen J, Bai W. Knockdown of miR-361-5p promotes the induced activation of SHF-stem cells through FOXM1 mediated Wnt/β-catenin pathway in cashmere goats. Anim Biotechnol 2024; 35:2356110. [PMID: 38804592 DOI: 10.1080/10495398.2024.2356110] [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: 05/29/2024]
Abstract
The inducing activation event of secondary hair follicle (SHF)-stem cells is considered a key biological process in the SHF regeneration, and the morphogenesis of cashmere fiber in cashmere goats. The miR-361-5p was essentially implicated in the induced activation of SHF-stem cells of cashmere goats, but its functional mechanisms are unclear. Here, we confirmed miR-361-5p was significantly downregulated in anagen SHF bugle of cashmere goats compared with that at telogen, and miR-361-5p expression was significantly lower in SHF-stem cells after activation than its counterpart before activation. Further, we found that miR-361-5p could negatively regulate the induced activation event of SHF-stem cells in cashmere goats. Mechanistically, through dual-luciferase reporter assays, miR-361-5p specifically bound with FOXM1 mRNA in SHF-stem cells of cashmere goats and negatively regulated the expression of FOXM1 gene. Also, through overexpression/knockdown analysis of FOXM1 gene, our results indicated that FOXM1 upregulated the expression of Wnt/β-catenin pathway related genes in SHF-stem cells. Moreover, based on TOP/FOP-flash Wnt report assays, the knockdown of miR-361-5p promotes the Wnt/β-catenin pathway activation through upregulating the FOXM1 expression in SHF-stem cells. Finally, we demonstrated that miR-361-5p negatively regulated the induced activation of SHF-stem cells through FOXM1 mediated Wnt/β-catenin pathway in cashmere goats.
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Affiliation(s)
- Ruqing Xu
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Man Bai
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Yixing Fan
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Yubo Zhu
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Zeying Wang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Taiyu Hui
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Qi Zhang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Xingwang Liu
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Jialiang Zhang
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Jincheng Shen
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
| | - Wenlin Bai
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P. R. China
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Lee SH, Platt S, Lim CH, Ito M, Myung P. The development of hair follicles and nail. Dev Biol 2024; 513:3-11. [PMID: 38759942 DOI: 10.1016/j.ydbio.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 05/06/2024] [Accepted: 05/14/2024] [Indexed: 05/19/2024]
Abstract
The hair follicle and nail unit develop and regenerate through epithelial-mesenchymal interactions. Here, we review some of the key signals and molecular interactions that regulate mammalian hair follicle and nail formation during embryonic development and how these interactions are reutilized to promote their regeneration during adult homeostasis and in response to skin wounding. Finally, we highlight the role of some of these signals in mediating human hair follicle and nail conditions.
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Affiliation(s)
- Soung-Hoon Lee
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University School of Medicine, New York, NY, USA
| | - Sarah Platt
- Department of Dermatology, Yale School of Medicine, New Haven, CT, USA
| | - Chae Ho Lim
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University School of Medicine, New York, NY, USA
| | - Mayumi Ito
- The Ronald O. Perelman Department of Dermatology and Department of Cell Biology, New York University School of Medicine, New York, NY, USA
| | - Peggy Myung
- Department of Dermatology, Yale School of Medicine, New Haven, CT, USA; Department of Pathology, Yale School of Medicine, New Haven, CT, USA.
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3
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Fu H, Li W, Liu J, Tang Q, Weng Z, Zhu L, Ding B. Ellagic acid inhibits dihydrotestosterone-induced ferroptosis and promotes hair regeneration by activating the wnt/β-catenin signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118227. [PMID: 38685364 DOI: 10.1016/j.jep.2024.118227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 05/02/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Androgenic alopecia (AGA) is the most prevalent form of hair loss in clinical practice and affects the physical and psychological well-being of adolescents. Paeonia lactiflora Pallas (PL), which is widely used in traditional Chinese medicine, enhances blood function and promotes hair growth, and ellagic acid (EA), a polyphenol in PL extract, shows strong antioxidant, anti-aging, and anti-inflammatory properties and also plays a role in the treatment of various skin conditions. However, its role and mechanism of action in AGA remain unclear. AIM OF THE STUDY To determine whether EA can rescue slow hair regeneration by regulating dihydrotestosterone (DHT)-induced ferroptosis in AGA mice and clarify the effect of EA on DHT-induced ferroptosis in dermal papilla cells (DPCs). MATERIALS AND METHODS Male C57BL/6 mice were used to establish a DHT-induced AGA mouse model, whereas DPCs were used to establish a DHT-induced cellular model. Thereafter, we investigated the therapeutic mechanism of action of EA via immunofluorescence, western blot analysis, immunohistochemistry, electron microscopy, and molecular docking. RESULTS EA stimulated hair regeneration in mice and reversed DHT-induced increases in iron content, lipid peroxidation, and DHT-induced mitochondrial dysfunction by activating the Wnt/β-catenin signaling pathway. Further, β-catenin knockdown suppressed the inhibitory effect of EA on DHT-induced ferroptosis in DPCs. CONCLUSION EA inhibits DHT-induced ferroptosis and promotes hair regrowth in mice by activating the Wnt/β-catenin signaling pathway. Thus, it has potential for use as a treatment option for AGA.
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Affiliation(s)
- Hangjie Fu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Wenxia Li
- Hangzhou Innovation Institute, Beihang University, Hangzhou, Zhejiang, China.
| | - Jinyuan Liu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Qiehao Tang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Zhiwei Weng
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Lijian Zhu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Bin Ding
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
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4
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Peña OA, Martin P. Cellular and molecular mechanisms of skin wound healing. Nat Rev Mol Cell Biol 2024; 25:599-616. [PMID: 38528155 DOI: 10.1038/s41580-024-00715-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/27/2024]
Abstract
Wound healing is a complex process that involves the coordinated actions of many different tissues and cell lineages. It requires tight orchestration of cell migration, proliferation, matrix deposition and remodelling, alongside inflammation and angiogenesis. Whereas small skin wounds heal in days, larger injuries resulting from trauma, acute illness or major surgery can take several weeks to heal, generally leaving behind a fibrotic scar that can impact tissue function. Development of therapeutics to prevent scarring and successfully repair chronic wounds requires a fuller knowledge of the cellular and molecular mechanisms driving wound healing. In this Review, we discuss the current understanding of the different phases of wound healing, from clot formation through re-epithelialization, angiogenesis and subsequent scar deposition. We highlight the contribution of different cell types to skin repair, with emphasis on how both innate and adaptive immune cells in the wound inflammatory response influence classically studied wound cell lineages, including keratinocytes, fibroblasts and endothelial cells, but also some of the less-studied cell lineages such as adipocytes, melanocytes and cutaneous nerves. Finally, we discuss newer approaches and research directions that have the potential to further our understanding of the mechanisms underpinning tissue repair.
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Affiliation(s)
- Oscar A Peña
- School of Biochemistry, University of Bristol, Bristol, UK.
| | - Paul Martin
- School of Biochemistry, University of Bristol, Bristol, UK.
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Yin M, Sun L, Wu S, Ma J, Zhang W, Ji X, Tang Z, Zhang X, Yang Y, Zhang X, Huang JW, Zheng S, Liu WJ, Ji C, Zhang LJ. TGFβ-mediated inhibition of hypodermal adipocyte progenitor differentiation promotes wound-induced skin fibrosis. Cell Prolif 2024:e13722. [PMID: 39072821 DOI: 10.1111/cpr.13722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/05/2024] [Accepted: 07/11/2024] [Indexed: 07/30/2024] Open
Abstract
Aberrant activation of dermal fibroblasts during wound healing often leads to debilitating fibrotic changes in the skin, such as scleroderma and keloids. However, the underlying cellular and molecular mechanisms remain elusive. Here, we established a wound-induced skin fibrosis (WISF) mouse model in mature adult mice, characterised by excessive deposition of collagen bundles, loss of dermal adipocytes, and enrichment of DPP4+Ly6A+THY1+ hypodermal interstitial adipocyte progenitors (HI-APs) and pericytes, resembling human fibrotic skin diseases. This WISF model exhibited an age-dependent gain of fibrotic characteristics, contrasting with the wound-induced hair neogenesis observed in younger mice. Through comprehensive analyses of the WISF, we delineated a trajectory of fibroblast differentiation that originates from HI-APs. These progenitors highly expressed several extracellular matrix (ECM) genes and exhibited a TGFβ pathway signature. TGFβ was identified as the key signal to inhibit the adipogenic potential and maintain the fibrogenic potential of dermal APs. Additionally, administering a TGFβ receptor inhibitor to wound scar reduced the abundance of ECM-producing APs. Finally, analysis of human scleroderma skin tissues revealed a negative correlation between the expression of AP-, ECM-, and TGFβ pathway-related genes and PPARG. Overall, this study establishes a wound-induced skin fibrosis mouse model and demonstrates that TGFβ-mediated blockage of HI-AP differentiation is crucial for driving fibrotic pathology. Targeting HI-APs and adipogenesis may provide novel avenues for developing disease-modifying therapies for fibrotic skin diseases.
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Affiliation(s)
- Meimei Yin
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Lixiang Sun
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
- Central Laboratory, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
| | - Shuai Wu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Jinhang Ma
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Wenlu Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Xiaoxuan Ji
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhichong Tang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Xiaowei Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yichun Yang
- Central Laboratory, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
| | - Xinyuan Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Jin-Wen Huang
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Shaoluan Zheng
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital (Xiamen), Fudan University, Xiamen, China
| | - Wen-Jie Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Chao Ji
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Ling-Juan Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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Fujiwara H. Dynamic duo: Cell-extracellular matrix interactions in hair follicle development and regeneration. Dev Biol 2024:S0012-1606(24)00192-1. [PMID: 39059679 DOI: 10.1016/j.ydbio.2024.07.012] [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: 01/06/2024] [Revised: 06/20/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Ectodermal organs, such as hair follicles, originate from simple epithelial and mesenchymal sheets through a complex developmental process driven by interactions between these cell types. This process involves dermal condensation, placode formation, bud morphogenesis, and organogenesis, and all of these processes require intricate interactions among various tissues. Recent research has emphasized the crucial role of reciprocal and dynamic interactions between cells and the extracellular matrix (ECM), referred to as the "dynamic duo", in the development of ectodermal organs. These interactions provide spatially and temporally changing biophysical and biochemical cues within tissues. Using the hair follicle as an example, this review highlights two types of cell-ECM adhesion units-focal adhesion-type and hemidesmosome-type adhesion units-that facilitate communication between epithelial and mesenchymal cells. This review further explores how these adhesion units, along with other cell-ECM interactions, evolve during hair follicle development and regeneration, underscoring their importance in guiding both developmental and regenerative processes.
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7
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Tomasso A, Disela V, Longaker MT, Bartscherer K. Marvels of spiny mouse regeneration: cellular players and their interactions in restoring tissue architecture in mammals. Curr Opin Genet Dev 2024; 87:102228. [PMID: 39047585 DOI: 10.1016/j.gde.2024.102228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/12/2024] [Accepted: 06/30/2024] [Indexed: 07/27/2024]
Abstract
Understanding the cellular and molecular determinants of mammalian tissue regeneration and repair is crucial for developing effective therapies that restore tissue architecture and function. In this review, we focus on the cell types involved in scarless wound response and regeneration of spiny mice (Acomys). Comparative -omics approaches with scar-prone mammals have revealed species-specific peculiarities in cellular behavior during the divergent healing trajectories. We discuss the developing views on which cell types engage in restoring the architecture of spiny mouse tissues through a co-ordinated spatiotemporal response to injury. While yet at the beginning of understanding how cells interact in these fascinating animals to regenerate tissues, spiny mice hold great promise for scar prevention and anti-fibrotic treatments.
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Affiliation(s)
- Antonio Tomasso
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University - School of Medicine, Department of Surgery, Stanford, CA 94305, USA; Department of Biology/Chemistry, Osnabrück University, Osnabrück 49076, Germany; Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), Utrecht 3584CT, the Netherlands. https://twitter.com/@anto_tomasso
| | - Vanessa Disela
- Department of Biology/Chemistry, Osnabrück University, Osnabrück 49076, Germany; Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), Utrecht 3584CT, the Netherlands. https://twitter.com/@VDisela
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University - School of Medicine, Department of Surgery, Stanford, CA 94305, USA. https://twitter.com/@LongakerLab
| | - Kerstin Bartscherer
- Department of Biology/Chemistry, Osnabrück University, Osnabrück 49076, Germany.
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8
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Shang Y, Li M, Zhang L, Han C, Shen K, Wang K, Li Y, Zhang Y, Luo L, Jia Y, Guo K, Cai W, Zhang J, Wang X, Wang H, Hu D. Exosomes derived from mouse vibrissa dermal papilla cells promote hair follicle regeneration during wound healing by activating Wnt/β-catenin signaling pathway. J Nanobiotechnology 2024; 22:425. [PMID: 39030543 PMCID: PMC11264511 DOI: 10.1186/s12951-024-02689-w] [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: 02/09/2024] [Accepted: 07/01/2024] [Indexed: 07/21/2024] Open
Abstract
Hair follicle (HF) regeneration during wound healing continues to present a significant clinical challenge. Dermal papilla cell-derived exosomes (DPC-Exos) hold immense potential for inducing HF neogenesis. However, the accurate role and underlying mechanisms of DPC-Exos in HF regeneration in wound healing remain to be fully explained. This study, represents the first analysis into the effects of DPC-Exos on fibroblasts during wound healing. Our findings demonstrated that DPC-Exos could stimulate the proliferation and migration of fibroblasts, more importantly, enhance the hair-inducing capacity of fibroblasts. Fibroblasts treated with DPC-Exos were capable of inducing HF neogenesis in nude mice when combined with neonatal mice epidermal cells. In addition, DPC-Exos accelerated wound re-epithelialization and promoted HF regeneration during the healing process. Treatment with DPC-Exos led to increased expression levels of the Wnt pathway transcription factors β-catenin and Lef1 in both fibroblasts and the dermis of skin wounds. Specifically, the application of a Wnt pathway inhibitor reduced the effects of DPC-Exos on fibroblasts and wound healing. Accordingly, these results offer evidence that DPC-Exos promote HF regeneration during wound healing by enhancing the hair-inducing capacity of fibroblasts and activating the Wnt/β-catenin signaling pathway. This suggests that DPC-Exos may represent a promising therapeutic strategy for achieving regenerative wound healing.
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Affiliation(s)
- Yage Shang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Mengyang Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Lixia Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Chao Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Kuo Shen
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Kejia Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yan Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yue Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Liang Luo
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yanhui Jia
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Kai Guo
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Weixia Cai
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Jian Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Xujie Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China.
| | - Hongtao Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China.
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China.
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9
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Almet AA, Liu Y, Nie Q, Plikus MV. Integrated Single-Cell Analysis Reveals Spatially and Temporally Dynamic Heterogeneity in Fibroblast States During Wound Healing. J Invest Dermatol 2024:S0022-202X(24)01884-0. [PMID: 39019149 DOI: 10.1016/j.jid.2024.06.1281] [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: 01/31/2023] [Revised: 06/14/2024] [Accepted: 06/26/2024] [Indexed: 07/19/2024]
Abstract
Wound healing is a dynamic process over temporal and spatial scales. Key to repair outcomes are fibroblasts, yet how they modulate healing across time and in different wound regions remains incompletely understood. By integrating single-cell RNA-sequencing datasets of mouse skin and wounds, we infer that fibroblasts are the most transcriptionally dynamic skin-resident cells, evolving during postnatal skin maturation, and rapidly after injury towards distinct late scar states. We show that transcriptional dynamics in fibroblasts are largely driven by genes encoding extracellular matrix and signaling factors. Lineage trajectory inference and spatial gene mapping reveal that Prg4-expressing fibroblasts transiently emerge along early wound edges. Within days, they become replaced by long-lasting and likely non-interconverting fibroblast populations, including Col25a1-expressing and Pamr1-expressing fibroblasts that occupy subepidermal and deep scar regions, respectively, where they engage in reciprocal signaling with immune cells. Signaling inference shows that fibroblast-immune crosstalk repeatedly uses some signaling pathways across wound healing time, while use of other signaling pathways is time- and space-limited. Collectively, we uncovered high transcriptional plasticity by wound fibroblasts, with early states transiently forming distinct micro-niches along wound edges and in the fascia, followed by stable states, that stratify scar tissue into molecularly dissimilar upper and lower layers.
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Affiliation(s)
- Axel A Almet
- Department of Mathematics, University of California, Irvine, Irvine, CA 92617, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92617, USA
| | - Yingzi Liu
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92617, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA 92617, USA
| | - Qing Nie
- Department of Mathematics, University of California, Irvine, Irvine, CA 92617, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92617, USA; Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92617, USA.
| | - Maksim V Plikus
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92617, USA; Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92617, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA 92617, USA.
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10
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Moradikhah F, Farahani M, Shafiee A. Towards the development of sensation-enabled skin substitutes. Biomater Sci 2024. [PMID: 38990154 DOI: 10.1039/d4bm00576g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Recent advances in cell and biofabrication technologies have contributed to the development of complex human organs. In particular, several skin substitutes are being generated using tissue engineering and regenerative medicine (TERM) technologies. However, recent studies mainly focus on the restoration of the dermis and epidermis layers rather than the regeneration of a fully functional innervated skin organ. Innervation is a critical step in functional tissue repair which has been overlooked in the current TERM studies. In the current study, we highlight the importance of sensation in the skin as the largest sensory organ in the human body. In large non-healing skin wounds, the skin sensation is severely diminished or completely lost and ultimately lead to chronic pain and wound healing process interruption. Current therapeutics for restoring skin sensation after trauma are limited. Recent regenerative medicine-based studies could successfully induce neural networks in skin substitutes, but the effectiveness of these technologies in enhancing sensory capability needs further investigation.
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Affiliation(s)
- Farzad Moradikhah
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Mojtaba Farahani
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
- Institute of Biomaterials, University of Tehran & Tehran University of Medical Sciences (IBUTUMS), Tehran, Iran
| | - Abbas Shafiee
- Frazer Institute, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4102, Australia.
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11
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Ramos R, Swedlund B, Ganesan AK, Morsut L, Maini PK, Monuki ES, Lander AD, Chuong CM, Plikus MV. Parsing patterns: Emerging roles of tissue self-organization in health and disease. Cell 2024; 187:3165-3186. [PMID: 38906093 DOI: 10.1016/j.cell.2024.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/22/2024] [Accepted: 05/08/2024] [Indexed: 06/23/2024]
Abstract
Patterned morphologies, such as segments, spirals, stripes, and spots, frequently emerge during embryogenesis through self-organized coordination between cells. Yet, complex patterns also emerge in adults, suggesting that the capacity for spontaneous self-organization is a ubiquitous property of biological tissues. We review current knowledge on the principles and mechanisms of self-organized patterning in embryonic tissues and explore how these principles and mechanisms apply to adult tissues that exhibit features of patterning. We discuss how and why spontaneous pattern generation is integral to homeostasis and healing of tissues, illustrating it with examples from regenerative biology. We examine how aberrant self-organization underlies diverse pathological states, including inflammatory skin disorders and tumors. Lastly, we posit that based on such blueprints, targeted engineering of pattern-driving molecular circuits can be leveraged for synthetic biology and the generation of organoids with intricate patterns.
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Affiliation(s)
- Raul Ramos
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA
| | - Benjamin Swedlund
- Eli and Edythe Broad CIRM Center, Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Anand K Ganesan
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA, USA; Department of Dermatology, University of California, Irvine, Irvine, CA, USA
| | - Leonardo Morsut
- Eli and Edythe Broad CIRM Center, Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA; Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - Philip K Maini
- Mathematical Institute, University of Oxford, Oxford, UK
| | - Edwin S Monuki
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA; Department of Pathology and Laboratory Medicine, University of California, Irvine, Irvine, CA, USA
| | - Arthur D Lander
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA; Center for Complex Biological Systems, University of California, Irvine, Irvine, CA, USA.
| | - Cheng-Ming Chuong
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, CA, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA, USA; Center for Complex Biological Systems, University of California, Irvine, Irvine, CA, USA.
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12
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Hasegawa-Haruki A, Obara K, Takaoka N, Shirai K, Hamada Y, Arakawa N, Aki R, Hoffman RM, Amoh Y. Hair-follicle associated pluripotent (HAP)-cell-sheet implantation enhanced wound healing in diabetic db/db mice. PLoS One 2024; 19:e0304676. [PMID: 38875234 PMCID: PMC11178214 DOI: 10.1371/journal.pone.0304676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 05/15/2024] [Indexed: 06/16/2024] Open
Abstract
Diabetes often results in chronic ulcers that fail to heal. Effective treatment for diabetic wounds has not been achieved, although stem-cell-treatment has shown promise. Hair-follicle-associated-pluripotent (HAP)-stem-cells from bulge area of mouse hair follicle have been shown to differentiate into keratinocytes, vascular endothelial cells, smooth muscle cells, and some other types of cells. In the present study, we developed HAP-cell-sheets to determine their effects on wound healing in type-2 diabetes mellitus (db/db) C57BL/6 mouse model. Flow cytometry analysis showed cytokeratin 15 expression in 64% of cells and macrophage expression in 3.6% of cells in HAP-cell-sheets. A scratch cell migration assay in vitro showed the ability of fibroblasts to migrate and proliferate was enhanced when co-cultured with HAP-cell-sheets. To investigate in vivo effects of the HAP-cell-sheets, they were implanted into 10 mm circular full-thickness resection wounds made on the back of db/db mice. Wound closure was facilitated in the implanted group until day 16. The thickness of epithelium and granulation tissue volume at day 7 were significantly increased by the implantation. CD68 positive area and TGF-β1 positive area were significantly increased; meanwhile, iNOS positive area was reduced at day 7 in the HAP-cell-sheets implanted group. After 21 days, CD68 positive areas in the implanted group were reduced to under the control group level, and TGF-β1 positive area had no difference between the two groups. These observations strongly suggest that the HAP-cell-sheets implantation is efficient to facilitate early macrophage activity and to suppress inflammation level. Using immuno-double-staining against CD34 and α-SMA, we found more vigorous angiogenesis in the implanted wound tissue. The present results suggest autologous HAP-cell-sheets can be used to heal refractory diabetic ulcers and have clinical promise.
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Affiliation(s)
- Ayami Hasegawa-Haruki
- Department of Dermatology, Kitasato University Graduate School of Medical Sciences, Sagamihara, Kanagawa, Japan
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Koya Obara
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Nanako Takaoka
- Department of Dermatology, Kitasato University Graduate School of Medical Sciences, Sagamihara, Kanagawa, Japan
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Kyoumi Shirai
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Yuko Hamada
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Nobuko Arakawa
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Ryoichi Aki
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Robert M Hoffman
- AntiCancer, Inc., San Diego, California, United states of America
- Department of Surgery, University of California San Diego, San Diego, California, United states of America
| | - Yasuyuki Amoh
- Department of Dermatology, Kitasato University Graduate School of Medical Sciences, Sagamihara, Kanagawa, Japan
- Department of Dermatology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
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13
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Zorlu Ö, Karabağ S, Erdoğan KE, Aksın M, Üstün B. Immunoexpression Patterns of Adhesion Molecules (E-cadherin, β-catenin, CD56) and Cytokeratins (CK19, CK20, HMWCK, CAM5.2) During Hair Development in Human Fetuses Compared With Adults. Am J Dermatopathol 2024:00000372-990000000-00358. [PMID: 38842366 DOI: 10.1097/dad.0000000000002741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
ABSTRACT Abnormalities in the expression of cytokeratins or adhesion molecules have been associated with hair disorders. The expression patterns of these molecules in the hair follicles of developing human fetuses are not obvious. We aimed to investigate the expression patterns of some cytokeratins and adhesion molecules in the hair follicle of human fetuses and compared them with adults. Forty-eight fetuses of >16 gestational weeks and 22 adult cases with total excisions of benign nevi or cysts were enrolled. The skin samples were taken from both the scalp and back of the fetuses. The histopathologically normal skin areas were evaluated in adults. CK19, CK20, CAM5.2, high-molecular-weight cytokeratin, E-cadherin, β-catenin, and CD56 immunohistochemical stainings were performed. In the fetus group, the staining scores declined in the third trimester but elevated and reached the highest level in adults, except for CD56, which did not stain any adult samples. All stainings were mostly observed in the outer root sheath, except CD56 that stained the perifollicular dermal sheath only in fetuses. E-cadherin, β-catenin, and high-molecular-weight cytokeratin strongly and diffusely stained all adult samples. CAM5.2 and CK19 scores were correlated in fetuses (scalp scores: rs = 0.405, P = 0.004; back scores: rs = 0.422, P = 0.003) and adults (back scores: rs = 0.562, P = 0.046). CD56 negativity indicated the immune-privilege feature of adult hair follicles. As CK19, CAM5.2 may be used to find the regions of stem cells or transient amplifying cells.
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Affiliation(s)
- Özge Zorlu
- Department of Dermatology and Venereology, Tekirdağ Namık Kemal University Faculty of Medicine, Tekirdağ, Turkey
| | - Sevil Karabağ
- Department of Pathology, Tekirdağ Namık Kemal University Faculty of Medicine, Tekirdağ, Turkey
| | - Kıvılcım E Erdoğan
- Department of Pathology, Çukurova University Faculty of Medicine, Adana, Turkey
| | - Merve Aksın
- Department of Pathology, Çukurova University Faculty of Medicine, Adana, Turkey; and
| | - Batuhan Üstün
- Department of Obstetrics and Gynecology, Tekirdağ Namık Kemal University Faculty of Medicine, Tekirdağ, Turkey
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14
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Xu XL, Wu SJ, Qi SY, Chen MM, Liu ZM, Zhang R, Zhao Y, Liu SQ, Zhou WD, Zhang JL, Zhang XS, Deng SL, Yu K, Li Y, Lian ZX. Increasing GSH-Px Activity and Activating Wnt Pathway Promote Fine Wool Growth in FGF5-Edited Sheep. Cells 2024; 13:985. [PMID: 38891117 PMCID: PMC11172217 DOI: 10.3390/cells13110985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Fibroblast growth factor 5 (FGF5) plays key roles in promoting the transition from the anagen to catagen during the hair follicle cycle. The sheep serves as an excellent model for studying hair growth and is frequently utilized in various research processes related to human skin diseases. We used the CRISPR/Cas9 system to generate four FGF5-edited Dorper sheep and only low levels of FGF5 were detected in the edited sheep. The density of fine wool in GE sheep was markedly increased, and the proportion of fine wool with a diameter of 14.4-20.0 μm was significantly higher. The proliferation signal in the skin of gene-edited (GE) sheep was stronger than in wild-type (WT) sheep. FGF5 editing decreased cortisol concentration in the skin, further activated the activity of antioxidant enzymes such as Glutathione peroxidase (GSH-Px), and regulated the expression of Wnt signaling pathways containing Wnt agonists (Rspondins, Rspos) and antagonists (Notum) in hair regeneration. We suggest that FGF5 not only mediates the activation of antioxidant pathways by cortisol, which constitutes a highly coordinated microenvironment in hair follicle cells, but also influences key signals of the Wnt pathway to regulate secondary hair follicle (SHF) development. Overall, our findings here demonstrate that FGF5 plays a significant role in regulating SHF growth in sheep and potentially serves as a molecular marker of fine wool growth in sheep breeding.
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Affiliation(s)
- Xue-Ling Xu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Su-Jun Wu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Shi-Yu Qi
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Ming-Ming Chen
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Zhi-Mei Liu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Rui Zhang
- Academy of Military Medical Sciences, Beijing 100071, China;
| | - Yue Zhao
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Shun-Qi Liu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Wen-Di Zhou
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Jin-Long Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; (J.-L.Z.); (X.-S.Z.)
| | - Xiao-Sheng Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; (J.-L.Z.); (X.-S.Z.)
| | - Shou-Long Deng
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing 100005, China;
| | - Kun Yu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
| | - Yan Li
- Academy of Military Medical Sciences, Beijing 100071, China;
| | - Zheng-Xing Lian
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (X.-L.X.); (S.-J.W.); (S.-Y.Q.); (M.-M.C.); (Z.-M.L.); (Y.Z.); (S.-Q.L.); (W.-D.Z.)
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15
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Lee H, Kim SY, Kwon NJ, Jo SJ, Kwon O, Kim JI. Single-Cell and Spatial Transcriptome Analysis of Dermal Fibroblast Development in Perinatal Mouse Skin: Dynamic Lineage Differentiation and Key Driver Genes. J Invest Dermatol 2024; 144:1238-1250.e11. [PMID: 38072389 DOI: 10.1016/j.jid.2023.11.008] [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: 02/20/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 01/21/2024]
Abstract
Several single-cell RNA studies of developing mouse skin have elucidated the molecular and cellular processes involved in skin development. However, they have primarily focused on either the fetal or early postnatal period, leaving a gap in our understanding of skin development. In this study, we conducted a comprehensive time-series analysis by combining single-cell RNA-sequencing datasets collected at different stages of development (embryonic days 13.5, 14.5, and 16.5 and postnatal days 0, 2, and 4) and validated our findings through multipanel in situ spatial transcriptomics. Our analysis indicated that embryonic fibroblasts exhibit heterogeneity from a very early stage and that the rapid determination of each lineage occurs within days after birth. The expression of putative key driver genes, including Hey1, Ebf1, Runx3, and Sox11 for the dermal papilla trajectory; Lrrc15 for the dermal sheath trajectory; Zfp536 and Nrn1 for the papillary fibroblast trajectory; and Lrrn4cl and Mfap5 for the fascia fibroblast trajectory, was detected in the corresponding, spatially identified cell types. Finally, cell-to-cell interaction analysis indicated that the dermal papilla lineage is the primary source of the noncanonical Wnt pathway during skin development. Together, our study provides a transcriptomic reference for future research in the field of skin development and regeneration.
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Affiliation(s)
- Hanjae Lee
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Department of Translational Medicine, Seoul National University College of Medicine, Seoul, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea
| | - So Young Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | | | - Seong Jin Jo
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea; Laboratory of Cutaneous Aging and Hair Research, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea; Institute of Human-Environment Interface Biology, Seoul National University College of Medicine, Seoul, Korea
| | - Ohsang Kwon
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea; Laboratory of Cutaneous Aging and Hair Research, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea; Institute of Human-Environment Interface Biology, Seoul National University College of Medicine, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea.
| | - Jong-Il Kim
- Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University, Seoul, Korea
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16
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Wang Y, Wang S, Mabrouk I, Zhou Y, Fu X, Song Y, Ma J, Hu X, Yang Z, Liu F, Hou J, Yu J, Sun Y. In ovo injection of AZD6244 suppresses feather follicle development by the inhibition of ERK and Wnt/β-catenin pathways in goose embryos ( Anser cygnoides). Br Poult Sci 2024; 65:307-314. [PMID: 38393940 DOI: 10.1080/00071668.2024.2309550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/05/2024] [Indexed: 02/25/2024]
Abstract
1. Feathers are an important product from poultry, and the state of feather growth and development plays an important role in their economic value.2. In total, 120 eggs were selected for immunoblotting and immunolocalisation experiments of ERK and β-catenin proteins in different developmental stages of goose embryos. The ERK protein was highly expressed in the early stage of goose embryo development, while β-catenin protein was highly expressed in the middle stage of embryo development.3. The 120 eggs were divided into four treatment groups, including an uninjected group (BLANK), a group injected with 100 µl of cosolvent (CK), a group injected with 100 µl of AZD6244 containing cosolvent in a dose of 5 mg/kg AZD6244 containing cosolvent (AZD5) and a group injected with 100 µl of AZD6244 containing cosolvent in a dose of 15 mg/kg AZD6244 containing cosolvent (AZD15). The eggs were injected on the ninth day of embryonic development (E9). Samples were collected at E21.5 to observe feather width, feather follicle diameter, ERK and Wnt/β-catenin pathway protein expression.4. The AZD5 and AZD15 doses were within the embryonic safety range compared to the BLANK and CK groups and had no significant effect on the survival rate and weight at the inflection point, but significantly reduced the feather width and feather follicle diameter (p < 0.05). The AZD6244 treatment inhibited ERK protein phosphorylation levels and blocked the Wnt/β-catenin pathway, which in turn significantly down-regulated the expression levels of FZD4, β-catenin, TCF4 and LEF1 (p < 0.05), with an inhibitory effect in the AZD15 group being more significant. The immunohistochemical results of β-catenin and p-ERK were consistent with Western blot results.5. The small molecule inhibitor AZD6244 regulated the growth and development of feather follicles in goose embryos by the ERK and Wnt/β-catenin pathways.
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Affiliation(s)
- Y Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - S Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - I Mabrouk
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Y Zhou
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - X Fu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Y Song
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - J Ma
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - X Hu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Z Yang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - F Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - J Hou
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - J Yu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Y Sun
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
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17
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BangHong J, YuKun W, Ao S, Tao S, PeiJun S, XuWen L, Lin L, ZhuYou X, Li Z. Low-level laser activates Wnt/β-catenin signaling pathway-promoting hair follicle stem cell regeneration and wound healing: Upregulate the expression of key downstream gene Lef 1. Skin Res Technol 2024; 30:e13807. [PMID: 38887112 PMCID: PMC11182782 DOI: 10.1111/srt.13807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/27/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND The objective of this study is to investigate the mechanism by which low-level laser stimulation promotes the proliferation of intraepithelial hair follicle stem cells (HFSCs) in wounds. This research aims to expand the applications of laser treatment, enhance wound repair methods, and establish a theoretical and experimental foundation for achieving accelerated wound healing. METHODS The experimental approach involved irradiating a cell model with low-level laser to assess the proliferation of HFSCs and examine alterations in the expression of proteins related to the Wnt/β-catenin signaling pathway. A mouse back wound model was established to investigate the effects of low-level laser irradiation on wound healing rate, wound microenvironment, and the proliferation of HFSCs in relation to the Wnt/β-catenin signaling pathway. RESULTS The research findings indicate that low-level laser light effectively activates the Wnt signaling pathway, leading to the increased accumulation of core protein β-catenin and the upregulation of key downstream gene Lef 1. Consequently, this regulatory mechanism facilitates various downstream biological effects, including the notable promotion of HFSC proliferation and differentiation into skin appendages and epithelial tissues. As a result, the process of wound healing is significantly accelerated. CONCLUSION Low levels of laser activates the Wnt signalling pathway, promotes the regeneration of hair follicle stem cells and accelerates wound healing.
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Affiliation(s)
- Jiang BangHong
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Wang YuKun
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Shi Ao
- The Second Hospital & Clinical Medical SchoolLanzhou UniversityLanzhouChina
| | - Sun Tao
- Department of NeurosurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Song PeiJun
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Li XuWen
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Li Lin
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Xiong ZhuYou
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
| | - Zhang Li
- Department of Plastic SurgeryThe First Affiliated HospitalBengbu Medical CollegeBengbuChina
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18
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Lim CH, Kaminaka A, Lee SH, Moore S, Cronstein BN, Rabbani PS, Ito M. Dermal β-Catenin Is Required for Hedgehog-Driven Hair Follicle Neogenesis. J Invest Dermatol 2024:S0022-202X(24)00390-7. [PMID: 38810955 DOI: 10.1016/j.jid.2024.04.025] [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: 07/01/2022] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024]
Abstract
Hair follicle neogenesis (HFN) occurs after large skin excisions in mice, serving as a rare regenerative model in mammalian wound healing. Wound healing typically results in fibrosis in mice and humans. We previously showed that small skin excisions in mice result in scarring devoid of HFN, displaying features of nonregenerative healing, and hedgehog (Hh) activation in the dermis of such wounds can induce HFN. In this study, we sought to verify the role of dermal Wnt/β-catenin signaling in HFN because this pathway is essential for hair follicle development but is also paradoxically well-characterized in fibrosis of adult wounds. By deletion of β-catenin in large wound myofibroblasts, we show that Wnt/β-catenin signaling is required for endogenous mechanisms of HFN. By utilizing a combined mouse model that simultaneously induces deletion of β-catenin and constitutive activation of Smoothened in myofibroblasts, we also found that β-catenin is required for Hh-driven dermal papilla formation. Transcriptome analysis confirms that Wnt/β-catenin and Hh pathways are activated in dermal papilla cells. Our results indicate that Wnt-active fibrotic status may also create a permissive state for the regenerative function of Hh, suggesting that activation of both Wnt and Hh pathways in skin wound fibroblasts must be ensured in future strategies to promote HFN.
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Affiliation(s)
- Chae Ho Lim
- Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA; Department of Cell Biology, NYU Grossman School of Medicine, New York, New York, USA.
| | - Annette Kaminaka
- Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA; Department of Cell Biology, NYU Grossman School of Medicine, New York, New York, USA
| | - Soung-Hoon Lee
- Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA; Department of Cell Biology, NYU Grossman School of Medicine, New York, New York, USA
| | - Simone Moore
- Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA; Department of Cell Biology, NYU Grossman School of Medicine, New York, New York, USA
| | - Bruce N Cronstein
- NYU-H+H Clinical and Translational Science Institute, NYU Grossman School of Medicine, New York, New York, USA
| | - Piul S Rabbani
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Mayumi Ito
- Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA; Department of Cell Biology, NYU Grossman School of Medicine, New York, New York, USA
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19
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Reddien PW. The purpose and ubiquity of turnover. Cell 2024; 187:2657-2681. [PMID: 38788689 DOI: 10.1016/j.cell.2024.04.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/19/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024]
Abstract
Turnover-constant component production and destruction-is ubiquitous in biology. Turnover occurs across organisms and scales, including for RNAs, proteins, membranes, macromolecular structures, organelles, cells, hair, feathers, nails, antlers, and teeth. For many systems, turnover might seem wasteful when degraded components are often fully functional. Some components turn over with shockingly high rates and others do not turn over at all, further making this process enigmatic. However, turnover can address fundamental problems by yielding powerful properties, including regeneration, rapid repair onset, clearance of unpredictable damage and errors, maintenance of low constitutive levels of disrepair, prevention of stable hazards, and transitions. I argue that trade-offs between turnover benefits and metabolic costs, combined with constraints on turnover, determine its presence and rates across distinct contexts. I suggest that the limits of turnover help explain aging and that turnover properties and the basis for its levels underlie this fundamental component of life.
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Affiliation(s)
- Peter W Reddien
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, MIT, Cambridge, MA 02139, USA; Howard Hughes Medical Institute, MIT, Cambridge, MA 02139, USA.
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20
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Savitri C, Ha SS, Kwon JW, Kim SH, Kim Y, Park HM, Kwon H, Ji MJ, Park K. Human Fibroblast-Derived Matrix Hydrogel Accelerates Regenerative Wound Remodeling Through the Interactions with Macrophages. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305852. [PMID: 38476050 PMCID: PMC11095160 DOI: 10.1002/advs.202305852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Herein, a novel extracellular matrix (ECM) hydrogel is proposed fabricated solely from decellularized, human fibroblast-derived matrix (FDM) toward advanced wound healing. This FDM-gel is physically very stable and viscoelastic, while preserving the natural ECM diversity and various bioactive factors. Subcutaneously transplanted FDM-gel provided a permissive environment for innate immune cells infiltration. Compared to collagen hydrogel, excellent wound healing indications of FDM-gel treated in the full-thickness wounds are noticed, particularly hair follicle formation via highly upregulated β-catenin. Sequential analysis of the regenerated wound tissues disclosed that FDM-gel significantly alleviated pro-inflammatory cytokine and promoted M2-like macrophages, along with significantly elevated vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) level. A mechanistic study demonstrated that macrophages-FDM interactions through cell surface integrins α5β1 and α1β1 resulted in significant production of VEGF and bFGF, increased Akt phosphorylation, and upregulated matrix metalloproteinase-9 activity. Interestingly, blocking such interactions using specific inhibitors (ATN161 for α5β1 and obtustatin for α1β1) negatively affected those pro-healing growth factors secretion. Macrophages depletion animal model significantly attenuated the healing effect of FDM-gel. This study demonstrates that the FDM-gel is an excellent immunomodulatory material that is permissive for host cells infiltration, resorbable with time, and interactive with macrophages, where it thus enables regenerative matrix remodeling toward a complete wound healing.
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Affiliation(s)
- Cininta Savitri
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Sang Su Ha
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Jae Won Kwon
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
| | - Sung Hoon Kim
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Young‐Min Kim
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
| | - Hyun Mee Park
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Haejin Kwon
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Mi Jung Ji
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Kwideok Park
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
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Li Y, Huang H, Gu C, Huang W, Chen X, Lu X, You A, Ye S, Zhong J, Zhao Y, Yan Y, Li C. Film-forming polymer solutions containing cholesterol myristate and berberine mediate pressure ulcer repair via the Wnt/β-catenin pathway. Wound Repair Regen 2024; 32:279-291. [PMID: 38353052 DOI: 10.1111/wrr.13158] [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: 03/20/2023] [Revised: 01/02/2024] [Accepted: 01/16/2024] [Indexed: 05/23/2024]
Abstract
Pressure ulcer (PU) is a worldwide problem that is difficult to address because of the related inflammatory response, local hypoxia, and repeated ischaemia/reperfusion, causing great suffering and financial burden to patients. Traditional Chinese medicine turtle plate powder can treat skin trauma, but its composition is complex and inconvenient to use. Here, we combined cholesterol myristate (S8) with berberine (BBR), with anti-inflammatory and antibacterial effects, as a drug and used hydroxypropyl methylcellulose and polyvinylpyrrolidone K30 as carriers to construct a novel film-forming polymeric solution (S8 + BBR FFPS), comprehensively study its reparative effect on PU and explore the potential mechanism in rat PU models. The results showed that S8 + BBR FFPS inhibits excessive inflammatory response, promotes re-epithelialization, and promotes hair follicle growth during the healing process of PU, which may be related to the activation of the Wnt/β-catenin signalling pathway by S8 + BBR FFPS to mediate hair follicle stem cell proliferation and maintain skin homeostasis. Therefore, S8 + BBR FFPS may be a potential candidate for the treatment of chronic skin injury, and its association with the Wnt/β-catenin signalling pathway may provide new ideas to guide the design of biomaterial-based wound dressings for chronic wound repair.
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Affiliation(s)
- Yu Li
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Haiting Huang
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Cuijin Gu
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenyi Huang
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xianxian Chen
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoting Lu
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Aijia You
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Sen Ye
- Research Center of Integrative Medicine, School Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- College of Basic Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jun Zhong
- Research Center of Integrative Medicine, School Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- College of Basic Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yao Zhao
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yu Yan
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chun Li
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
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Sun R, Luo Y, Liu J, Shi L, Zhang Y. Carbon Dioxide Fractional Laser Treatment Induces Lgr5+ Stem Cell Activation and Hair Regrowth Through the Canonical Wnt/β-Catenin Pathway. Aesthetic Plast Surg 2024; 48:1831-1845. [PMID: 38155292 DOI: 10.1007/s00266-023-03796-z] [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: 08/30/2023] [Accepted: 12/04/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Different types of alopecia have negative impacts on patients. Recently, some kinds of laser or light therapies have been reported to effectively alleviate hair loss. Carbon dioxide fractional laser (CO2FL) treatment is one of the most effective laser treatments, but its beneficial effects and exact mechanism in hair regrowth have not been reported in detail. The purpose of this study was to investigate the effect and molecular mechanism further. METHODS C57 and Lgr5-Cre: Rosa-mTmG mouse models of hair regrowth were established by CO2FL treatment, and the parameters that induced the best effect were determined. Tissues were harvested on the day prior to the treatment day and on days 3, 5, 7, 10 and 14 after CO2FL. H&E and immunofluorescence staining, RNA sequencing (RNA-seq), quantitative real-time polymerase chain reaction (qPCR), Western blotting (WB) and related inhibitor were used to determine the molecular mechanism underlying the effect of CO2FL treatment on the hair cycle and hair regrowth. In clinical trial, five participants were treated three sessions at 1-month intervals to obverse the effects. RESULTS Hair regrew and covered the treatment area on the tenth day after CO2FL treatment with the best parameters, while the control group showed signs of hair growth on the 14th day. H&E and immunofluorescence staining showed that the transition of hair follicles (HFs) from telogen to anagen was accelerated, and the rapid activation and proliferation of Lgr5+ hair follicle stem cells (HFSCs) were observed in the treatment group. The RNA-seq, qPCR and WB results indicated that the Wnt pathway was significantly activated after CO2FL treatment. Improvement achieved with CO2FL treatment in clinical trial. CONCLUSIONS The results of this study suggest that CO2FL treatment can promote hair regrowth by activating Lgr5+ HFSCs and upregulating the Wnt/β-catenin pathway. Clinical trial results demonstrated that CO2FL treatment will be a promising therapeutic regimen for alopecia. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Ruishuang Sun
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 466 Middle Xin Gang Road, Guangzhou City, Guangdong Province, China
| | - Yingxia Luo
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 466 Middle Xin Gang Road, Guangzhou City, Guangdong Province, China
| | - Jiaxing Liu
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 466 Middle Xin Gang Road, Guangzhou City, Guangdong Province, China
| | - Liujie Shi
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 466 Middle Xin Gang Road, Guangzhou City, Guangdong Province, China
| | - Yunsong Zhang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 466 Middle Xin Gang Road, Guangzhou City, Guangdong Province, China.
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Tan CT, Lim CY, Lay K. Modelling Human Hair Follicles-Lessons from Animal Models and Beyond. BIOLOGY 2024; 13:312. [PMID: 38785794 PMCID: PMC11117913 DOI: 10.3390/biology13050312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024]
Abstract
The hair follicle is a specialized appendage of the skin that is critical for multiple functions, including thermoregulation, immune surveillance, and sebum production. Mammals are born with a fixed number of hair follicles that develop embryonically. Postnatally, these hair follicles undergo regenerative cycles of regression and growth that recapitulate many of the embryonic signaling pathways. Furthermore, hair cycles have a direct impact on skin regeneration in homeostasis, cutaneous wound healing, and disease conditions such as alopecia. Here, we review the current knowledge of hair follicle formation during embryonic development and the post-natal hair cycle, with an emphasis on the molecular signaling pathways underlying these processes. We then discuss efforts to capitalize on the field's understanding of in vivo mechanisms to bioengineer hair follicles or hair-bearing skin in vitro and how such models may be further improved to develop strategies for hair regeneration.
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Affiliation(s)
- Chew Teng Tan
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Chin Yan Lim
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
| | - Kenneth Lay
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
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24
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Gumede DB, Abrahamse H, Houreld NN. Targeting Wnt/β-catenin signaling and its interplay with TGF-β and Notch signaling pathways for the treatment of chronic wounds. Cell Commun Signal 2024; 22:244. [PMID: 38671406 PMCID: PMC11046856 DOI: 10.1186/s12964-024-01623-9] [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: 02/29/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024] Open
Abstract
Wound healing is a tightly regulated process that ensures tissue repair and normal function following injury. It is modulated by activation of pathways such as the transforming growth factor-beta (TGF-β), Notch, and Wnt/β-catenin signaling pathways. Dysregulation of this process causes poor wound healing, which leads to tissue fibrosis and ulcerative wounds. The Wnt/β-catenin pathway is involved in all phases of wound healing, primarily in the proliferative phase for formation of granulation tissue. This review focuses on the role of the Wnt/β-catenin signaling pathway in wound healing, and its transcriptional regulation of target genes. The crosstalk between Wnt/β-catenin, Notch, and the TGF-β signaling pathways, as well as the deregulation of Wnt/β-catenin signaling in chronic wounds are also considered, with a special focus on diabetic ulcers. Lastly, we discuss current and prospective therapies for chronic wounds, with a primary focus on strategies that target the Wnt/β-catenin signaling pathway such as photobiomodulation for healing diabetic ulcers.
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Affiliation(s)
- Dimakatso B Gumede
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Nicolette N Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa.
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25
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Liu Y, Yang S, Tan L, Li X, Long D, Lu J, Wang D. Necrosulfonamide promotes hair growth and ameliorates DHT-induced hair growth inhibition. J Dermatol Sci 2024:S0923-1811(24)00069-0. [PMID: 39043505 DOI: 10.1016/j.jdermsci.2024.04.004] [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: 02/13/2024] [Revised: 04/03/2024] [Accepted: 04/25/2024] [Indexed: 07/25/2024]
Abstract
BACKGROUND Alopecia affects patients' appearance and psychology. Mixed-lineage kinase domain-like pseudokinase (MLKL)-mediated necroptosis plays a role in various skin diseases, but its effect on hair growth is unclear. OBJECTIVE To investigate the effects of MLKL on hair growth and its regulatory mechanisms and to determine the potential clinical value of Necrosulfonamide (NSA, a MLKL-targeting inhibitor) in promoting hair growth and counteracting dihydrotestosterone (DHT) inhibition of hair growth. METHODS The expression level of MLKL was detected in the scalp of androgenetic alopecia (AGA) patients and the skin tissues of mice. Knock down MLKL expression or use NSA to observe hair growth in vivo and in vitro. RESULTS In AGA patients, MLKL expression is elevated in the alopecia areas. In mice, MLKL is significantly expressed in the outer root sheath (ORS) cells of hair follicles, peaking during the catagen phase. Knockdown expression of MLKL in mice skin promoted hair growth. NSA enhanced hair growth and prevented hair follicle regression via the Wnt signaling. Reduced MLKL boosts ORS cell proliferation without directly impacting DPCs' growth. Interestingly, NSA boosts DPCs' proliferation and induction when co-cultured with ORS cells. Besides, NSA alleviated the inhibition of DHT on hair growth in vivo and vitro. CONCLUSION NSA inhibited the activation of MLKL in ORS cells, promoted the activation of Wnt signal in DPC cells, and improved the inhibition of hair growth by DHT, illuminating a new alopecia mechanism and aiding anti-alopecia drug development.
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Affiliation(s)
- Yuanhong Liu
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Shengbo Yang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Lina Tan
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xuemei Li
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Daijing Long
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jianyun Lu
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China.
| | - Dan Wang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, China.
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26
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Yamaguchi HL, Yamaguchi Y, Peeva E. Pathogenesis of Alopecia Areata and Vitiligo: Commonalities and Differences. Int J Mol Sci 2024; 25:4409. [PMID: 38673994 PMCID: PMC11049978 DOI: 10.3390/ijms25084409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/13/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Both alopecia areata (AA) and vitiligo are distinct, heterogenous, and complex disease entities, characterized by nonscarring scalp terminal hair loss and skin pigment loss, respectively. In AA, inflammatory cell infiltrates are in the deep reticular dermis close to the hair bulb (swarm of bees), whereas in vitiligo the inflammatory infiltrates are in the epidermis and papillary dermis. Immune privilege collapse has been extensively investigated in AA pathogenesis, including the suppression of immunomodulatory factors (e.g., transforming growth factor-β (TGF-β), programmed death-ligand 1 (PDL1), interleukin-10 (IL-10), α-melanocyte-stimulating hormone (α-MSH), and macrophage migration inhibitory factor (MIF)) and enhanced expression of the major histocompatibility complex (MHC) throughout hair follicles. However, immune privilege collapse in vitiligo remains less explored. Both AA and vitiligo are autoimmune diseases that share commonalities in pathogenesis, including the involvement of plasmacytoid dendritic cells (and interferon-α (IFN- α) signaling pathways) and cytotoxic CD8+ T lymphocytes (and activated IFN-γ signaling pathways). Blood chemokine C-X-C motif ligand 9 (CXCL9) and CXCL10 are elevated in both diseases. Common factors that contribute to AA and vitiligo include oxidative stress, autophagy, type 2 cytokines, and the Wnt/β-catenin pathway (e.g., dickkopf 1 (DKK1)). Here, we summarize the commonalities and differences between AA and vitiligo, focusing on their pathogenesis.
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Affiliation(s)
| | - Yuji Yamaguchi
- Inflammation & Immunology Research Unit, Pfizer, Collegeville, PA 19426, USA
| | - Elena Peeva
- Inflammation & Immunology Research Unit, Pfizer, Cambridge, MA 02139, USA;
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27
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Xiao X, Gao Y, Yan L, Deng C, Wu W, Lu X, Lu Q, Zhong W, Xu Y, Zhang C, Chen W, Huang B. M1 polarization of macrophages promotes stress-induced hair loss via interleukin-18 and interleukin-1β. J Cell Physiol 2024; 239:e31181. [PMID: 38219076 DOI: 10.1002/jcp.31181] [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: 10/04/2023] [Revised: 11/23/2023] [Accepted: 12/12/2023] [Indexed: 01/15/2024]
Abstract
Stress-induced hair loss is a prevalent health concern, with mechanisms that remain unclear, and effective treatment options are not yet available. In this study, we investigated whether stress-induced hair loss was related to an imbalanced immune microenvironment. Screening the skin-infiltrated immune cells in a stressed mouse model, we discovered a significant increase in macrophages upon stress induction. Clearance of macrophages rescues mice from stress-induced hair shedding and depletion of hair follicle stem cells (HFSCs) in the skin, demonstrating the role of macrophages in triggering hair loss in response to stress. Further flow cytometry analysis revealed a significant increase in M1 phenotype macrophages in mice under stressed conditions. In searching for humoral factors mediating stress-induced macrophage polarization, we found that the hormone Norepinephrine (NE) was elevated in the blood of stressed mice. In addition, in-vivo and in-vitro studies confirm that NE can induce macrophage polarization toward M1 through the β-adrenergic receptor, Adrb2. Transcriptome, enzyme-linked immunosorbent assay (ELISA), and western blot analyses reveal that the NLRP3/caspase-1 inflammasome signaling and its downstream effector interleukin 18 (IL-18) and interleukin 1 beta (IL-1β) were significantly upregulated in the NE-treated macrophages. However, inhibition of the NE receptor Adrb2 with ICI118551 reversed the upregulation of NLRP3/caspase-1, IL-18, and IL-1β. Indeed, IL-18 and IL-1β treatments lead to apoptosis of HFSCs. More importantly, blocking IL-18 and IL-1β signals reversed HFSCs depletion in skin organoid models and attenuated stress-induced hair shedding in mice. Taken together, this study demonstrates the role of the neural (stress)-endocrine (NE)-immune (M1 macrophages) axis in stress-induced hair shedding and suggestes that IL-18 or IL-1β may be promising therapeutic targets.
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Affiliation(s)
- Xing Xiao
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, China
| | - Ying Gao
- School of Pharmaceutical Sciences Shenzhen, Sun Yat-sen University, Shenzhen, China
| | - Lingchen Yan
- School of Pharmaceutical Sciences Shenzhen, Sun Yat-sen University, Shenzhen, China
| | - Cuncan Deng
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, China
| | - Wang Wu
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, China
| | - Xiaofang Lu
- Department of Pathology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Qiumei Lu
- School of Pharmaceutical Sciences Shenzhen, Sun Yat-sen University, Shenzhen, China
| | - Wenwei Zhong
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Yunsheng Xu
- Department of Dermatology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Changhua Zhang
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, China
| | - Wei Chen
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, China
| | - Bihui Huang
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
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He J, Wei C, Huang X, Zhang G, Mao J, Li X, Yang C, Zhang W, Tian K, Liu G. MiR-23b and miR-133 Cotarget TGFβ2/NOTCH1 in Sheep Dermal Fibroblasts, Affecting Hair Follicle Development. Cells 2024; 13:557. [PMID: 38534401 DOI: 10.3390/cells13060557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024] Open
Abstract
Wool is produced and controlled by hair follicles (HFs). However, little is known about the mechanisms involved in HF development and regulation. Sheep dermal fibroblasts (SDFs) play a key role in the initial stage of HF development. Analyzing the molecular mechanism that regulates early HF development in superfine wool sheep is of great importance for better understanding the HF morphogenesis process and for the breeding of fine wool sheep. Here, we show that two microRNAs (miRNAs) affect the development of HFs by targeting two genes that are expressed by SDFs. Meanwhile, the overexpression and inhibition of oar-miR-23b and oar-miR-133 in SDFs cells and cell proliferation, apoptosis, and migration were further detected using a CCK-8 assay, an Annexin V-FITC assay, a Transwell assay, and flow cytometry. We found that oar-miR-23b, oar-miR-133, and their cotarget genes TGFβ2 and NOTCH1 were differentially expressed during the six stages of HF development in superfine wool sheep. Oar-miR-23b and oar-miR-133 inhibited the proliferation and migration of SDFs and promoted the apoptosis of SDFs through TGFβ2 and NOTCH1. oar-miR-23b and oar-miR-133 inhibited the proliferation and migration of SDFs by jointly targeting TGFβ2 and NOTCH1, thereby inhibiting the development of superfine wool HFs. Our research provides a molecular marker that can be used to guide the breeding of ultrafine wool sheep.
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Affiliation(s)
- Junmin He
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
- Key Laboratory of Livestock and Poultry Multi-Omics of MARA, Jinan 250100, China
| | - Chen Wei
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
- Key Laboratory of Livestock and Poultry Multi-Omics of MARA, Jinan 250100, China
| | - Xixia Huang
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Guoping Zhang
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
- Key Laboratory of Livestock and Poultry Multi-Omics of MARA, Jinan 250100, China
| | - Jingyi Mao
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Xue Li
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Cunming Yang
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Wenjing Zhang
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
| | - Kechuan Tian
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
- Key Laboratory of Livestock and Poultry Multi-Omics of MARA, Jinan 250100, China
| | - Guifen Liu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
- Key Laboratory of Livestock and Poultry Multi-Omics of MARA, Jinan 250100, China
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29
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Bejaoui M, Heah WY, Oliva Mizushima AK, Nakajima M, Yamagishi H, Yamamoto Y, Isoda H. Keratin Microspheres as Promising Tool for Targeting Follicular Growth. ACS APPLIED BIO MATERIALS 2024; 7:1513-1525. [PMID: 38354359 DOI: 10.1021/acsabm.3c00956] [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: 02/16/2024]
Abstract
Skin is the body barrier that constrains the infiltration of particles and exogenous aggression, in which the hair follicle plays an important role. Recent studies have shown that small particles can penetrate the skin barrier and reach the hair follicle, making them a potential avenue for delivering hair growth-related substances. Interestingly, keratin-based microspheres are widely used as drug delivery carriers in various fields. In this current study, we pursue the effect of newly synthesized 3D spherical keratin particles on inducing hair growth in C57BL/6 male mice and in human hair follicle dermal papilla cells. The microspheres were created from partially sulfonated, water-soluble keratin. The keratin microspheres swelled in water to form spherical gels, which were used for further experiments. Following topical application for a period of 20 days, we observed a regrowth of hair in the previously depleted area on the dorsal part of the mice in the keratin microsphere group. This observation was accompanied by the regulation of hair-growth-related pathways as well as changes in markers associated with epidermal cells, keratin, and collagen. Interestingly, microsphere keratin treatment enhanced the cell proliferation and the expression of hair growth markers in dermal papilla cells. Based on our data, we propose that 3D spherical keratin has the potential to specifically target hair follicle growth and can be employed as a carrier for promoting hair growth-related agents.
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Affiliation(s)
- Meriem Bejaoui
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba 305-8572, Japan
- AIST-University of Tsukuba Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), AIST, University of Tsukuba, Tsukuba 305-8572, Japan
- Research & Development Center for Tailor-Made QOL Program, University of Tsukuba, Tsukuba 305-8572, Japan
| | - Wey Yih Heah
- Department of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
- MyQtech Inc., Tsukuba 305-8573, Japan
| | - Aprill Kee Oliva Mizushima
- Research & Development Center for Tailor-Made QOL Program, University of Tsukuba, Tsukuba 305-8572, Japan
| | - Mitsutoshi Nakajima
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba 305-8572, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Japan
- MED R&D Co. Ltd., Tsukuba 305-8572, Japan
| | - Hiroshi Yamagishi
- Department of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Yohei Yamamoto
- Department of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
- MyQtech Inc., Tsukuba 305-8573, Japan
| | - Hiroko Isoda
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba 305-8572, Japan
- AIST-University of Tsukuba Open Innovation Laboratory for Food and Medicinal Resource Engineering (FoodMed-OIL), AIST, University of Tsukuba, Tsukuba 305-8572, Japan
- Research & Development Center for Tailor-Made QOL Program, University of Tsukuba, Tsukuba 305-8572, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Japan
- MED R&D Co. Ltd., Tsukuba 305-8572, Japan
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Tierney MT, Polak L, Yang Y, Abdusselamoglu MD, Baek I, Stewart KS, Fuchs E. Vitamin A resolves lineage plasticity to orchestrate stem cell lineage choices. Science 2024; 383:eadi7342. [PMID: 38452090 PMCID: PMC11177320 DOI: 10.1126/science.adi7342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 02/07/2024] [Indexed: 03/09/2024]
Abstract
Lineage plasticity-a state of dual fate expression-is required to release stem cells from their niche constraints and redirect them to tissue compartments where they are most needed. In this work, we found that without resolving lineage plasticity, skin stem cells cannot effectively generate each lineage in vitro nor regrow hair and repair wounded epidermis in vivo. A small-molecule screen unearthed retinoic acid as a critical regulator. Combining high-throughput approaches, cell culture, and in vivo mouse genetics, we dissected its roles in tissue regeneration. We found that retinoic acid is made locally in hair follicle stem cell niches, where its levels determine identity and usage. Our findings have therapeutic implications for hair growth as well as chronic wounds and cancers, where lineage plasticity is unresolved.
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Affiliation(s)
- Matthew T Tierney
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University; New York, NY 10065, USA
| | - Lisa Polak
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University; New York, NY 10065, USA
| | | | - Merve Deniz Abdusselamoglu
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University; New York, NY 10065, USA
| | | | - Katherine S Stewart
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University; New York, NY 10065, USA
| | - Elaine Fuchs
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University; New York, NY 10065, USA
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Horibe I, Izumi S, Ke Y, Tanahashi N, Takagi Y, Ishihara R, Nakano T, Sumiyoshi T, Nagaoka Y. Acquired curved hair is caused by fusion of multiple hair matrix cells. J Dermatol Sci 2024; 113:130-137. [PMID: 38431439 DOI: 10.1016/j.jdermsci.2024.02.002] [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: 07/21/2023] [Revised: 01/19/2024] [Accepted: 02/09/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND "Curved hair" caused by acquired factors is considered to have adverse cosmetic effects, but the detailed mechanism behind curved hair remains obscure. OBJECTIVE We attempted to clarify the causes of curved hair that appeared to have occurred via acquired factors. METHODS Outer root sheath cells (ORSC) isolated from plucked human hair follicles were used to evaluate the expression of type IV collagen. Straight and curved hairs with hair follicle tissue attached were also collected from the same individuals and subjected to morphological, immunohistochemical, and gene expression analyses. RESULTS The amount of type IV collagen increased upon inducing endoplasmic reticulum stress in ORSC. Meanwhile, in curved hair follicle tissue, the gene expression of type IV collagen decreased. In addition, the curved hair follicle tissue obtained from participants in their 30 s to 50 s had distorted shapes compared with that of straight hair from the same individuals. It was also observed that hair matrix cells based on multiple hair germs fused to eventually form a single hair follicle and hair shaft. In curved hair follicle tissue, KRT71 protein, a marker of inner root sheath differentiation, was unevenly distributed and there was elevated expression of Dickkopf-1 (DKK1) protein, an inhibitor of the Wnt signaling pathway. CONCLUSION Our study revealed the fusion of hair matrix cells during hair follicle regeneration as a cause of acquired curved hair. We consider that such fusion causes hair follicle tissue to abnormally differentiate, resulting in asymmetric hair follicle shapes and curved hair.
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Affiliation(s)
- Ippei Horibe
- Research & Development Division, NAKANO SEIYAKU Co., Ltd., Kyoto, Japan.
| | - Sara Izumi
- Department of Life Science and Biotechnology, Kansai University, Osaka, Japan
| | - Yuru Ke
- Department of Life Science and Biotechnology, Kansai University, Osaka, Japan
| | - Nanami Tanahashi
- Department of Life Science and Biotechnology, Kansai University, Osaka, Japan
| | - Yusuke Takagi
- Research & Development Division, NAKANO SEIYAKU Co., Ltd., Kyoto, Japan
| | - Ryoji Ishihara
- Research & Development Division, NAKANO SEIYAKU Co., Ltd., Kyoto, Japan
| | - Takaya Nakano
- Research & Development Division, NAKANO SEIYAKU Co., Ltd., Kyoto, Japan
| | - Takaaki Sumiyoshi
- Department of Life Science and Biotechnology, Kansai University, Osaka, Japan
| | - Yasuo Nagaoka
- Department of Life Science and Biotechnology, Kansai University, Osaka, Japan
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Wang S, Wang Y, Hu X, Zhou Y, Yang Z, Hou J, Liu F, Liu Q, Mabrouk I, Yu J, Li X, Xue G, Sun Y. Dermal FOXO3 activity in response to Wnt/β-catenin signaling is required for feather follicle development of goose embryos (Anser cygnoides). Poult Sci 2024; 103:103424. [PMID: 38330682 PMCID: PMC10865040 DOI: 10.1016/j.psj.2024.103424] [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: 11/29/2023] [Revised: 01/02/2024] [Accepted: 01/02/2024] [Indexed: 02/10/2024] Open
Abstract
Feather is an important economic trait of poultry, and growth and development state of feathers plays an important role in the economic value of poultry. Dermal fibroblasts are required for structural integrity of the skin and for feather follicle development. How FOXO3 affects feather follicle development as skin tissues change during goose embryo (Anser cygnoides) development and growth is not well understood. Here, we demonstrate that in vitro culture of single feathers and skin tissue results in changes in feather morphological structure by adding drugs to the culture medium that affect FOXO3 expression. We used feather follicles to show that during growth, the root location of feathers, the dermis layer, affects cell proliferation and apoptosis and regulates the expression of major genes in the Wingless-types/beta-catenin (Wnt/β-catenin) signaling pathway through the activity of FOXO3 in dermal fibroblasts. Feathers and dorsal skin tissues develop the correct structure, but feather length and width and feather follicle diameter change significantly (p < 0.05) without significant changes in feather follicle density (p > 0.05). Transfected dermal fibroblasts also showed that FOXO3 affected the formation and development of feather follicles in the embryonic stage by regulating the Wnt/β-catenin signaling pathway. Therefore, this study reveals the critical role of dermal fibroblast-FOXO3-induced Wnt/β-catenin signaling in promoting the formation and development of embryonic feather follicles.
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Affiliation(s)
- Sihui Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Yudong Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Xiangman Hu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Yuxuan Zhou
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Zhiyi Yang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Jiahui Hou
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Fengshuo Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Qiuyuan Liu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Ichraf Mabrouk
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Jin Yu
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Xinyue Li
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Guizhen Xue
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Yongfeng Sun
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China; Key Laboratory of Animal Production, Product Quality and Security, Jilin Agricultural University, Ministry of Education, Changchun, 130118, China; Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun, 130118, China.
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Gao Y, Fan Z, Xiao X, Kong D, Han J, Chu W. Epidermal ET-1 signal induces activation of resting hair follicles by upregulating the PI3K/AKT pathway in the dermis. FASEB J 2024; 38:e23476. [PMID: 38334392 DOI: 10.1096/fj.202302207r] [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: 10/26/2023] [Revised: 01/08/2024] [Accepted: 01/25/2024] [Indexed: 02/10/2024]
Abstract
The prevalence of alopecia has increased recently. Hair loss is often accompanied by the resting phase of hair follicles (HFs). Dermal papilla (DP) plays a crucial role in HF development, growth, and regeneration. Activating DP can revive resting HFs. Augmenting WNT/β-catenin signaling stimulates HF growth. However, the factors responsible for activating resting HFs effectively are unclear. In this study, we investigated epidermal cytokines that can activate resting HFs effectively. We overexpressed β-catenin in both in vivo and in vitro models to observe its effects on resting HFs. Then, we screened potential epidermal cytokines from GEO DATASETs and assessed their functions using mice models and skin-derived precursors (SKPs). Finally, we explored the molecular mechanism underlying the action of the identified cytokine. The results showed that activation of WNT/β-catenin in the epidermis prompted telogen-anagen transition. Keratinocytes infected with Ctnnb1-overexpressing lentivirus enhanced SKP expansion. Subsequently, we identified endothelin 1 (ET-1) expressed higher in hair-growing epidermis and induced the proliferation of DP cells and activates telogen-phase HFs in vivo. Moreover, ET-1 promotes the proliferation and stemness of SKPs. Western blot analysis and in vivo experiments revealed that ET-1 induces the transition from telogen-to-anagen phase by upregulating the PI3K/AKT pathway. These findings highlight the potential of ET-1 as a promising cytokine for HF activation and the treatment of hair loss.
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Affiliation(s)
- Ying Gao
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, China
| | - Zhimeng Fan
- School of Life Sciences, Tsinghua University, Beijing, China
- Faculty of Medicine, Lund University, Lund, Sweden
| | - Xing Xiao
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Deqiang Kong
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Jimin Han
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Weiwei Chu
- Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China
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Gwon Y, Park S, Kim W, Park S, Sharma H, Jeong HE, Kong H, Kim J. Graphene Hybrid Tough Hydrogels with Nanostructures for Tissue Regeneration. NANO LETTERS 2024; 24:2188-2195. [PMID: 38324001 DOI: 10.1021/acs.nanolett.3c04188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Over the past few decades, hydrogels have attracted considerable attention as promising biomedical materials. However, conventional hydrogels require improved mechanical properties, such as brittleness, which significantly limits their widespread use. Recently, hydrogels with remarkably improved toughness have been developed; however, their low biocompatibility must be addressed. In this study, we developed a tough graphene hybrid hydrogel with nanostructures. The resultant hydrogel exhibited remarkable mechanical properties while representing an aligned nanostructure that resembled the extracellular matrix of soft tissue. Owing to the synergistic effect of the topographical properties, and the enhanced biochemical properties, the graphene hybrid hydrogel had excellent stretchability, resilience, toughness, and biocompatibility. Furthermore, the hydrogel displayed outstanding tissue regeneration capabilities (e.g., skin and tendons). Overall, the proposed graphene hybrid tough hydrogel may provide significant insights into the application of tough hydrogels in tissue regeneration.
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Affiliation(s)
- Yonghyun Gwon
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sangbae Park
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea
- Institute of Nano-Stem Cells Therapeutics, NANOBIOSYSTEM Co., Ltd, Gwangju 61011, Republic of Korea
- Department of Biosystems Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Woochan Kim
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sunho Park
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Bio-Industrial Machinery Engineering, Pusan National University, Miryang 50463, Republic of Korea
| | - Harshita Sharma
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hoon Eui Jeong
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Jangho Kim
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju 61186, Republic of Korea
- Institute of Nano-Stem Cells Therapeutics, NANOBIOSYSTEM Co., Ltd, Gwangju 61011, Republic of Korea
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Shyu YC, Huang TS, Chiu HS, Sumazin P, Lin XY, Liao PC, Liou CC, Hsu FC, Lin JS, Hsu CC, Hsu PH, Sun CC, Chen CT. Deciphering Early-Stage Molecular Mechanisms of Negative Pressure Wound Therapy in a Murine Model. Int J Mol Sci 2024; 25:2373. [PMID: 38397048 PMCID: PMC10888958 DOI: 10.3390/ijms25042373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Negative Pressure Wound Therapy (NPWT) is a commonly employed clinical strategy for wound healing, yet its early-stage mechanisms remain poorly understood. To address this knowledge gap and overcome the limitations of human trials, we establish an NPWT C57BL/6JNarl mouse model to investigate the molecular mechanisms involved in NPWT. In this study, we investigate the intricate molecular mechanisms through which NPWT expedites wound healing. Our focus is on NPWT's modulation of inflammatory immune responses and the concurrent orchestration of multiple signal transduction pathways, resulting in shortened coagulation time and reduced inflammation. Notably, we observe a significant rise in dickkopf-related protein 1 (DKK-1) concentration during NPWT, promoting the differentiation of Hair Follicle Stem Cells (HFSCs) into epidermal cells, expediting wound closure. Under negative pressure, macrophages express and release DKK-1 cytokines, crucial for stimulating HFSC differentiation, as validated in animal experiments and in vitro studies. Our findings illuminate the inflammatory dynamics under NPWT, revealing potential signal transduction pathways. The proposed framework, involving early hemostasis, balanced inflammation, and macrophage-mediated DKK-1 induction, provides a novel perspective on enhancing wound healing during NPWT. Furthermore, these insights lay the groundwork for future pharmacological advancements in managing extensive wounds, opening avenues for targeted therapeutic interventions in wound care.
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Affiliation(s)
- Yu-Chiau Shyu
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan; (X.-Y.L.); (P.-C.L.); (C.-C.L.); (F.-C.H.); (J.-S.L.)
- Department of Nursing, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Ting-Shuo Huang
- Department of General Surgery, Jen Ai Hospital, Taichung 400, Taiwan;
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Hua-Sheng Chiu
- Department of Pediatrics, Baylor College of Medicine, Texas Children’s Hospital Cancer Center, Houston, TX 77030, USA; (H.-S.C.); (P.S.)
| | - Pavel Sumazin
- Department of Pediatrics, Baylor College of Medicine, Texas Children’s Hospital Cancer Center, Houston, TX 77030, USA; (H.-S.C.); (P.S.)
| | - Xin-Yu Lin
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan; (X.-Y.L.); (P.-C.L.); (C.-C.L.); (F.-C.H.); (J.-S.L.)
| | - Po-Cheng Liao
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan; (X.-Y.L.); (P.-C.L.); (C.-C.L.); (F.-C.H.); (J.-S.L.)
| | - Cai-Cin Liou
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan; (X.-Y.L.); (P.-C.L.); (C.-C.L.); (F.-C.H.); (J.-S.L.)
| | - Fang-Chia Hsu
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan; (X.-Y.L.); (P.-C.L.); (C.-C.L.); (F.-C.H.); (J.-S.L.)
| | - Jyuan-Siou Lin
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan; (X.-Y.L.); (P.-C.L.); (C.-C.L.); (F.-C.H.); (J.-S.L.)
| | - Chih-Chin Hsu
- Department of Medicine, School of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan
| | - Pang-Hung Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan;
| | - Chi-Chin Sun
- Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan;
| | - Chien-Tzung Chen
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan
- Craniofacial Research Center, Chang Gung University, Taoyuan 333, Taiwan
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Frech S, Lichtenberger BM. Modulating embryonic signaling pathways paves the way for regeneration in wound healing. Front Physiol 2024; 15:1367425. [PMID: 38434140 PMCID: PMC10904466 DOI: 10.3389/fphys.2024.1367425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
Epithelial tissues, including the skin, are highly proliferative tissues with the capability to constant renewal and regeneration, a feature that is essential for survival as the skin forms a protective barrier against external insults and water loss. In adult mammalian skin, every injury will lead to a scar. The scar tissue that is produced to seal the wound efficiently is usually rigid and lacks elasticity and the skin's original resilience to external impacts, but also secondary appendages such as hair follicles and sebaceous glands. While it was long thought that hair follicles develop solely during embryogenesis, it is becoming increasingly clear that hair follicles can also regenerate within a wound. The ability of the skin to induce hair neogenesis following injury however declines with age. As fetal and neonatal skin have the remarkable capacity to heal without scarring, the recapitulation of a neonatal state has been a primary target of recent regenerative research. In this review we highlight how modulating dermal signaling or the abundance of specific fibroblast subsets could be utilized to induce de novo hair follicles within the wound bed, and thus to shift wound repair with a scar to scarless regeneration.
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Voza FA, Huerta CT, Le N, Shao H, Ribieras A, Ortiz Y, Atkinson C, Machuca T, Liu ZJ, Velazquez OC. Fibroblasts in Diabetic Foot Ulcers. Int J Mol Sci 2024; 25:2172. [PMID: 38396848 PMCID: PMC10889208 DOI: 10.3390/ijms25042172] [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: 12/15/2023] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Fibroblasts are stromal cells ubiquitously distributed in the body of nearly every organ tissue. These cells were previously considered to be "passive cells", solely responsible for ensuring the turnover of the extracellular matrix (ECM). However, their versatility, including their ability to switch phenotypes in response to tissue injury and dynamic activity in the maintenance of tissue specific homeostasis and integrity have been recently revealed by the innovation of technological tools such as genetically modified mouse models and single cell analysis. These highly plastic and heterogeneous cells equipped with multifaceted functions including the regulation of angiogenesis, inflammation as well as their innate stemness characteristics, play a central role in the delicately regulated process of wound healing. Fibroblast dysregulation underlies many chronic conditions, including cardiovascular diseases, cancer, inflammatory diseases, and diabetes mellitus (DM), which represent the current major causes of morbidity and mortality worldwide. Diabetic foot ulcer (DFU), one of the most severe complications of DM affects 40 to 60 million people. Chronic non-healing DFU wounds expose patients to substantial sequelae including infections, gangrene, amputation, and death. A complete understanding of the pathophysiology of DFU and targeting pathways involved in the dysregulation of fibroblasts are required for the development of innovative new therapeutic treatments, critically needed for these patients.
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Affiliation(s)
- Francesca A. Voza
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Carlos Theodore Huerta
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Nga Le
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Hongwei Shao
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Antoine Ribieras
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Yulexi Ortiz
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Carl Atkinson
- Department of Internal Medicine, Division of Pulmonary Critical Care & Sleep Medicine, University of Florida, Gainesville, FL 32611, USA;
| | - Tiago Machuca
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Zhao-Jun Liu
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Omaida C. Velazquez
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Liu T, Liu Y, Zhao X, Zhang L, Wang W, Bai D, Liao Y, Wang Z, Wang M, Zhang J. Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application. Bioact Mater 2024; 32:502-513. [PMID: 38026438 PMCID: PMC10643103 DOI: 10.1016/j.bioactmat.2023.10.002] [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: 06/14/2023] [Revised: 09/09/2023] [Accepted: 10/01/2023] [Indexed: 12/01/2023] Open
Abstract
Copper peptides (GHK-Cu) are a powerful hair growth promoter with minimal side effects when compared with minoxidil and finasteride; however, challenges in delivering GHK-Cu topically limits their non-invasive applications. Using theoretical calculations and pseudo-ternary phase diagrams, we designed and constructed a thermodynamically stable ionic liquid (IL)-based microemulsion (IL-M), which integrates the high drug solubility of ILs and high skin permeability of microemulsions, thus improving the local delivery of copper peptides by approximately three-fold while retaining their biological function. Experiments in mice validated the effectiveness of our proposed IL-M system. Furthermore, the exact effects of the IL-M system on the expression of growth factors, such as vascular endothelial growth factor, were revealed, and it was found that microemulsion increased the activation of the Wnt/β-catenin signaling pathway, which includes factors involved in hair growth regulation. Overall, the safe and non-invasive IL microemulsion system developed in this study has great potential for the clinical treatment of hair loss.
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Affiliation(s)
- Tianqi Liu
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Research Center of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Ying Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Xiaoyu Zhao
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Liguo Zhang
- Harbin Voolga Technology Co., Ltd., Harbin, 150070, China
| | - Wei Wang
- Harbin Voolga Technology Co., Ltd., Harbin, 150070, China
| | - De Bai
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Research Center of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Ya Liao
- Shenzhen Shinehigh Innovation Technology Co., Ltd., Shenzhen, 518055, China
| | - Zhenyuan Wang
- Shenzhen Shinehigh Innovation Technology Co., Ltd., Shenzhen, 518055, China
| | - Mi Wang
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Research Center of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Jiaheng Zhang
- State Key Laboratory of Advanced Welding and Joining, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- Research Center of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen Shinehigh Innovation Technology Co., Ltd., Shenzhen, 518055, China
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Kida M, Fatima I, Rozhkova E, Otero-Viñas M, Wu M, Kalin JH, Cole PA, Falanga V, Alani RM, Sharov AA. Inhibition of the CoREST Repressor Complex Promotes Wound Re-Epithelialization through the Regulation of Keratinocyte Migration. J Invest Dermatol 2024; 144:378-386.e2. [PMID: 37633457 PMCID: PMC10790709 DOI: 10.1016/j.jid.2023.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/28/2023]
Abstract
Wound healing is a complex process involving phases of hemostasis, inflammation, proliferation, and remodeling. The regenerative process in the skin requires coordination between many regulators, including signaling molecules, transcription factors, and the epigenetic machinery. In this study, we show that chromatin regulators HDAC1 and LSD1, key components of the CoREST repressor complex, are upregulated in the regenerating epidermis during wound repair. We also show that corin, a synthetic dual inhibitor of the CoREST complex and HDAC1/LSD1 activities, significantly accelerates wound closure through enhanced re-epithelialization in a mouse tail wound model. Acetylated H3K9 (methylation of histone H3 at lysine 9) expression, a histone modification targeted by HDAC1, is increased in keratinocytes after topical treatment with 100 nM and 1 μM of corin. In vitro experiments demonstrate that corin promotes migration and inhibits the proliferation of human keratinocytes. Furthermore, expression levels of genes promoting keratinocyte migration, such as AREG, CD24, EPHB2, ITGAX, PTGS, SCT1, SERPINB2, SERPINE1, SLPI, SNAI2, and TWIST, increased in keratinocytes treated with corin. These data demonstrate that dual inhibition of class I histone deacetylases and LSD1 by corin may serve as a new approach for promoting wound re-epithelialization and provide a platform for further applications of corin for the treatment of chronic wounds.
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Affiliation(s)
- Maki Kida
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Iqra Fatima
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Elena Rozhkova
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Marta Otero-Viñas
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA; The Tissue Repair and Regeneration Laboratory (TR2Lab), Faculty of Sciences and Technology, University of Vic - Central University of Catalonia, Vic, Spain
| | - Muzhou Wu
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Jay H Kalin
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Philip A Cole
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Vincent Falanga
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Rhoda M Alani
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Andrey A Sharov
- Department of Dermatology, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA.
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Zhang B, Chen T. Local and systemic mechanisms that control the hair follicle stem cell niche. Nat Rev Mol Cell Biol 2024; 25:87-100. [PMID: 37903969 DOI: 10.1038/s41580-023-00662-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2023] [Indexed: 11/01/2023]
Abstract
Hair follicles are essential appendages of the mammalian skin, as hair performs vital functions of protection, thermoregulation and sensation. Hair follicles harbour exceptional regenerative abilities as they contain multiple somatic stem cell populations such as hair follicle stem cells (HFSCs) and melanocyte stem cells. Surrounding the stem cells and their progeny, diverse groups of cells and extracellular matrix proteins are organized to form a microenvironment (called 'niche') that serves to promote and maintain the optimal functioning of these stem cell populations. Recent studies have shed light on the intricate nature of the HFSC niche and its crucial role in regulating hair follicle regeneration. In this Review, we describe how the niche serves as a signalling hub, communicating, deciphering and integrating both local signals within the skin and systemic inputs from the body and environment to modulate HFSC activity. We delve into the recent advancements in identifying the cellular and molecular nature of the niche, providing a holistic perspective on its essential functions in hair follicle morphogenesis, regeneration and ageing.
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Affiliation(s)
- Bing Zhang
- School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China.
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
| | - Ting Chen
- National Institute of Biological Sciences, Beijing, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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Polaka S, Pawar B, Vasdev N, Tekade RK. Development and biological evaluation of smart powder bandage for wound healing and dressing applications. Int J Biol Macromol 2024; 258:129044. [PMID: 38154708 DOI: 10.1016/j.ijbiomac.2023.129044] [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: 10/02/2023] [Revised: 11/29/2023] [Accepted: 12/23/2023] [Indexed: 12/30/2023]
Abstract
Cutaneous wounds are one of the pressing concerns for healthcare systems globally. With large amounts of water, conventional hydrogels encounter obstacles in effectively delivering small molecules and peptides for wound healing. The surplus water content challenges the stability and sustained release of small molecules and peptides, diminishing their therapeutic efficacy. Our pioneering smart powder bandage, fabricated through freeze-drying, ensures a water content of <1 % during storage. Upon contact with wound exudate, it forms hydrogel layers, thereby optimizing the delivery of peptides. Tailored for thermosensitive peptides such as EGF, this strategy surmounts the limitations of conventional hydrogels, providing a robust platform for efficacious therapeutic delivery in wound healing applications. Developing multifunctional wound dressings with antibacterial, anti-inflammatory, hemostatic, and healing properties is essential to promote wound healing. Therefore, the current investigation reports the development of multifunctional EGF@Silnanom SPB with the above-mentioned properties to promote wound healing using silver nanomix (Silnanom) and bioactive epidermal growth factors (EGF) as active therapeutics. The characterization of smart powder bandage (SPB) revealed that Silnanom were homogeneously dispersed in the entangled polymer network. The multifunctional smart powder bandage exhibited high bacterial inhibition rates against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), and rigorous hemocompatibility, cell compatibility, and in vivo studies also confirmed its biocompatibility. Furthermore, multifunctional EGF@Silnanom SPB effectively reduced pro-inflammatory markers, enhanced collagen deposition, promoted angiogenesis, and accelerated wound healing in a full-thickness mouse wound model through the sustained release of Silnanom and EGF. Additionally, the results of hemostasis analysis on the tail amputation mouse model confirmed the hemostasis properties of the EGF@Silnanom SPB. Overall, the multifunctional EGF@Silnanom SPB shows promising potential for skin wound repair, offering a potent and effective solution to the challenges posed by conventional wound dressings.
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Affiliation(s)
- Suryanarayana Polaka
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air force station, Gandhinagar 382355, Gujarat, India
| | - Bhakti Pawar
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air force station, Gandhinagar 382355, Gujarat, India
| | - Nupur Vasdev
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air force station, Gandhinagar 382355, Gujarat, India
| | - Rakesh Kumar Tekade
- National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air force station, Gandhinagar 382355, Gujarat, India.
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Qiu M, Zhang Z, Zhu S, Liu S, Peng H, Xiong X, Chen J, Hu C, Yang L, Song X, Xia B, Yu C, Yang C. Transcriptome Sequencing and Mass Spectrometry Reveal Genes Involved in the Non-mendelian Inheritance-Mediated Feather Growth Rate in Chicken. Biochem Genet 2024:10.1007/s10528-023-10643-y. [PMID: 38280152 DOI: 10.1007/s10528-023-10643-y] [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: 08/09/2023] [Accepted: 12/18/2023] [Indexed: 01/29/2024]
Abstract
The feather growth rate in chickens included early and late feathering. We attempted to characterize the genes and pathways associated with the feather growth rate in chickens that are not in agreement with Mendelian inheritance. Gene expression profiles in the hair follicle tissues of late-feathering cocks (LC), early-feathering cocks (EC), late-feathering hens (LH), and early-feathering hens (EH) were acquired using RNA sequencing (RNA-seq), mass spectrometry (MS), and quantitative reverse transcription PCR (qRT‑PCR). A total of 188 differentially expressed genes (DEGs) were ascertained in EC vs. LC and 538 DEGs were identified in EH vs. LH. We observed that 14 up-regulated genes and 9 down-regulated genes were screened both in EC vs. LC and EH vs. LH. MS revealed that 41 and 138 differentially expressed proteins (DEPs) were screened out in EC vs. LC and EH vs. LH, respectively. Moreover, these DEGs and DEPs were enriched in multiple feather-related pathways, including JAK-STAT, MAPK, WNT, TGF-β, and calcium signaling pathways. qRT-PCR assay showed that the expression of WNT8A was decreased in LC compared with EC, while ALK and GRM4 expression were significantly up-regulated in EH relative to LH. This study helps to elucidate the potential mechanism of the feather growth rate in chickens that do not conform to genetic law.
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Affiliation(s)
- Mohan Qiu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Zengrong Zhang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Shiliang Zhu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Siyang Liu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Han Peng
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Xia Xiong
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Jialei Chen
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Chenming Hu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Li Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Xiaoyan Song
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Bo Xia
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China
| | - Chunlin Yu
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China.
| | - Chaowu Yang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, 7# Niusha Road, Chengdu, 610066, Sichuan, China.
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Kohlhauser M, Tuca A, Kamolz LP. The efficacy of adipose-derived stem cells in burn injuries: a systematic review. Cell Mol Biol Lett 2024; 29:10. [PMID: 38182971 PMCID: PMC10771009 DOI: 10.1186/s11658-023-00526-w] [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: 10/13/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Burn injuries can be associated with prolonged healing, infection, a substantial inflammatory response, extensive scarring, and eventually death. In recent decades, both the mortality rates and long-term survival of severe burn victims have improved significantly, and burn care research has increasingly focused on a better quality of life post-trauma. However, delayed healing, infection, pain and extensive scar formation remain a major challenge in the treatment of burns. ADSCs, a distinct type of mesenchymal stem cells, have been shown to improve the healing process. The aim of this review is to evaluate the efficacy of ADSCs in the treatment of burn injuries. METHODS A systematic review of the literature was conducted using the electronic databases PubMed, Web of Science and Embase. The basic research question was formulated with the PICO framework, whereby the usage of ADSCs in the treatment of burns in vivo was determined as the fundamental inclusion criterion. Additionally, pertinent journals focusing on burns and their treatment were screened manually for eligible studies. The review was registered in PROSPERO and reported according to the PRISMA statement. RESULTS Of the 599 publications screened, 21 were considered relevant to the key question and were included in the present review. The included studies were almost all conducted on rodents, with one exception, where pigs were investigated. 13 of the studies examined the treatment of full-thickness and eight of deep partial-thickness burn injuries. 57,1 percent of the relevant studies have demonstrated that ADSCs exhibit immunomodulatory effects during the inflammatory response. 16 studies have shown improved neovascularisation with the use of ADSCs. 14 studies report positive influences of ADSCs on granulation tissue formation, while 11 studies highlight their efficacy in promoting re-epithelialisation. 11 trials demonstrated an improvement in outcomes during the remodelling phase. CONCLUSION In conclusion, it appears that adipose-derived stem cells demonstrate remarkable efficacy in the field of regenerative medicine. However, the usage of ADSCs in the treatment of burns is still at an early experimental stage, and further investigations are required in order to examine the potential usage of ADSCs in future clinical burn care.
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Affiliation(s)
- Michael Kohlhauser
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria.
| | - Alexandru Tuca
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
- Department of Surgery, State Hospital Güssing, Güssing, Austria
| | - Lars-Peter Kamolz
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria
- COREMED-Cooperative Centre for Regenerative Medicine, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Graz, Austria
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Dutta A, Saha D, Jamora C. Approaches to Study Wound-Induced Hair Neogenesis (WIHN). Methods Mol Biol 2024; 2849:31-44. [PMID: 38499917 DOI: 10.1007/7651_2024_522] [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: 03/20/2024]
Abstract
Embryonic wound repair proceeds with complete regeneration of the tissue without any scar formation, whereas tissue repair in adults usually results in scars and the tissue does not completely regain its preinjured state. Wound-induced hair neogenesis (WIHN) in adult rodents results in de novo hair follicle formation in the center of large wounds, mimicking regeneration processes seen in fetal tissue. The investigation of WIHN therefore provides a unique quantitative framework for scrutinizing the mechanistic underpinnings of regenerative repair, which can have clinical implications in the context of scarless healing. In this chapter, we present a detailed protocol for inducing wounds that lead to hair neogenesis in laboratory mice and facilitating the identification and characterization of distinct stages in neogenic hair follicle development. Additionally, we present a whole-mount alkaline phosphatase assay to distinguish de novo hair follicles. These protocols can facilitate studies toward obtaining a comprehensive understanding of WIHN and shedding light on the intricate molecular and cellular processes involved in mammalian regenerative repair.
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Affiliation(s)
- Abhik Dutta
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka, India
- School of Chemical and Biotechnology (SCBT), Shanmugha Arts, Science, Technology and Research Academy (SASTRA), Thanjavur, Tamil Nadu, India
| | - Dyuti Saha
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka, India
- Department of Biology, Manipal Academy of Higher Education, Manipal, India
| | - Colin Jamora
- Department of Life Sciences, Shiv Nadar Institution of Eminence, Greater Noida, Uttar Pradesh, India.
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Sun Y, Yang L, Du L, Zhou Y, Xu K, Chen J, He Y, Qu Q, Miao Y, Xing M, Hu Z. Duo-role Platelet-rich Plasma: temperature-induced fibrin gel and growth factors' reservoir for microneedles to promote hair regrowth. J Adv Res 2024; 55:89-102. [PMID: 36849045 PMCID: PMC10770113 DOI: 10.1016/j.jare.2023.02.014] [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: 10/19/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 02/27/2023] Open
Abstract
INTRODUCTION Alopecia concerns more than half our adult population. Platelet-rich plasma (PRP) has been applied in skin rejuvenation and hair loss treatment. However, the pain and bleeding during injection and the troublesome for fresh preparation of each action limit PRP's in-depth applying dedication to clinics. OBJECTIVES We report a temperature-sensitive PRP induced fibrin gel included in a detachable transdermal microneedle (MN) for hair growth. RESULTS PRP gel interpenetrated with the photocrosslinkable gelatin methacryloyl (GelMA) to realize sustained release of growth factors (GFs) and led to 14% growth in mechanical strength of a single microneedle whose strength reached 1.21 N which is sufficient to penetrate the stratum corneum. PRP-MNs' release of VEGF, PDGF, and TGF-β were characterized and quantitatively around the hair follicles (HFs) for 4-6 days consecutively. PRP-MNs promoted hair regrowth in mice models. From transcriptome sequencing, PRP-MNs induced hair regrowth through angiogenesis and proliferation. The mechanical and TGF-β sensitive gene Ankrd1 was significantly upregulated by PRP-MNs treatment. CONCLUSION PRP-MNs show convenient, minimally invasive, painless, inexpensive manufacture, storable and sustained effects in boosting hair regeneration.
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Affiliation(s)
- Yang Sun
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China; Department of Mechanical Engineering, University of Manitoba, 75A Chancellors Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - Lunan Yang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Lijuan Du
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yi Zhou
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Kaige Xu
- Department of Mechanical Engineering, University of Manitoba, 75A Chancellors Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - Jian Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Ye He
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Qian Qu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, 75A Chancellors Circle, Winnipeg, Manitoba R3T 2N2, Canada.
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
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Wang J, Ma Y, Li T, Li J, Yang X, Hua G, Cai G, Zhang H, Liu Z, Wu K, Deng X. MiR-199a-3p Regulates the PTPRF/β-Catenin Axis in Hair Follicle Development: Insights into the Pathogenic Mechanism of Alopecia Areata. Int J Mol Sci 2023; 24:17632. [PMID: 38139460 PMCID: PMC10743674 DOI: 10.3390/ijms242417632] [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: 10/17/2023] [Revised: 12/10/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Alopecia areata is an autoimmune disease characterized by the immune system attacking self hair follicles, mainly in the scalp. There is no complete cure, and the pathogenesis is still not fully understood. Here, sequencing of skin tissues collected from 1-month-old coarse- and fine-wool lambs identified miR-199a-3p as the only small RNA significantly overexpressed in the fine-wool group, suggesting a role in hair follicle development. MiR-199a-3p expression was concentrated in the dermal papillae cells of sheep hair follicles, along with enhanced β-catenin expression and the inhibition of PTPRF protein expression. We also successfully constructed a mouse model of alopecia areata by intracutaneous injection with an miR-199a-3p antagomir. Injection of the miR-199a-3p agomir resulted in hair growth and earlier anagen entry. Conversely, local injection with the miR-199a-3p antagomir resulted in suppressed hair growth at the injection site, upregulation of immune system-related genes, and downregulation of hair follicle development-related genes. In vivo and in vitro analyses demonstrated that miR-199a-3p regulates hair follicle development through the PTPRF/β-catenin axis. In conclusion, a mouse model of alopecia areata was successfully established by downregulation of a small RNA, suggesting the potential value of miR-199a-3p in the study of alopecia diseases. The regulatory role of miR-199a-3p in the PTPRF/β-catenin axis was confirmed, further demonstrating the link between alopecia areata and the Wnt-signaling pathway.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Xuemei Deng
- Beijing Key Laboratory for Animal Genetic Improvement & State Key Laboratory of Animal Biotech Breeding & Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, China Agricultural University, Beijing 100193, China; (J.W.); (Y.M.); (T.L.); (J.L.); (X.Y.); (G.H.); (G.C.); (H.Z.); (Z.L.); (K.W.)
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Altshuler A, Amitai-Lange A, Nasser W, Dimri S, Bhattacharya S, Tiosano B, Barbara R, Aberdam D, Shimmura S, Shalom-Feuerstein R. Eyes open on stem cells. Stem Cell Reports 2023; 18:2313-2327. [PMID: 38039972 PMCID: PMC10724227 DOI: 10.1016/j.stemcr.2023.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/03/2023] Open
Abstract
Recently, the murine cornea has reemerged as a robust stem cell (SC) model, allowing individual SC tracing in living animals. The cornea has pioneered seminal discoveries in SC biology and regenerative medicine, from the first corneal transplantation in 1905 to the identification of limbal SCs and their transplantation to successfully restore vision in the early 1990s. Recent experiments have exposed unexpected properties attributed to SCs and progenitors and revealed flexibility in the differentiation program and a key role for the SC niche. Here, we discuss the limbal SC model and its broader relevance to other tissues, disease, and therapy.
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Affiliation(s)
- Anna Altshuler
- Department of Genetics & Developmental Biology, The Rappaport Faculty of Medicine & Research Institute, Technion Integrated Cancer Center, Technion - Israel Institute of Technology, Haifa 31096, Israel.
| | - Aya Amitai-Lange
- Department of Genetics & Developmental Biology, The Rappaport Faculty of Medicine & Research Institute, Technion Integrated Cancer Center, Technion - Israel Institute of Technology, Haifa 31096, Israel
| | - Waseem Nasser
- Department of Genetics & Developmental Biology, The Rappaport Faculty of Medicine & Research Institute, Technion Integrated Cancer Center, Technion - Israel Institute of Technology, Haifa 31096, Israel
| | - Shalini Dimri
- Department of Genetics & Developmental Biology, The Rappaport Faculty of Medicine & Research Institute, Technion Integrated Cancer Center, Technion - Israel Institute of Technology, Haifa 31096, Israel
| | - Swarnabh Bhattacharya
- Department of Genetics & Developmental Biology, The Rappaport Faculty of Medicine & Research Institute, Technion Integrated Cancer Center, Technion - Israel Institute of Technology, Haifa 31096, Israel
| | - Beatrice Tiosano
- Department of Ophthalmology, Hillel Yaffe Medical Center, Hadera, Israel
| | - Ramez Barbara
- Department of Ophthalmology, Hillel Yaffe Medical Center, Hadera, Israel
| | - Daniel Aberdam
- Université Paris-Cité, INSERM U1138, Centre des Cordeliers, 75270 Paris, France
| | - Shigeto Shimmura
- Department of Clinical Regenerative Medicine, Fujita Medical Innovation Center, Tokyo, Japan
| | - Ruby Shalom-Feuerstein
- Department of Genetics & Developmental Biology, The Rappaport Faculty of Medicine & Research Institute, Technion Integrated Cancer Center, Technion - Israel Institute of Technology, Haifa 31096, Israel.
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48
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Tosa M, Abe Y, Egawa S, Hatakeyama T, Iwaguro C, Mitsugi R, Moriyama A, Sano T, Ogawa R, Tanaka N. The HEDGEHOG-GLI1 pathway is important for fibroproliferative properties in keloids and as a candidate therapeutic target. Commun Biol 2023; 6:1235. [PMID: 38062202 PMCID: PMC10703807 DOI: 10.1038/s42003-023-05561-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023] Open
Abstract
Keloids are benign fibroproliferative skin tumors caused by aberrant wound healing that can negatively impact patient quality of life. The lack of animal models has limited research on pathogenesis or developing effective treatments, and the etiology of keloids remains unknown. Here, we found that the characteristics of stem-like cells from keloid lesions and the surrounding dermis differ from those of normal skin. Furthermore, the HEDGEHOG (HH) signal and its downstream transcription factor GLI1 were upregulated in keloid patient-derived stem-like cells. Inhibition of the HH-GLI1 pathway reduced the expression of genes involved in keloids and fibrosis-inducing cytokines, including osteopontin. Moreover, the HH signal inhibitor vismodegib reduced keloid reconstituted tumor size and keloid-related gene expression in nude mice and the collagen bundle and expression of cytokines characteristic for keloids in ex vivo culture of keloid tissues. These results implicate the HH-GLI1 pathway in keloid pathogenesis and suggest therapeutic targets of keloids.
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Affiliation(s)
- Mamiko Tosa
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Yoshinori Abe
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Seiko Egawa
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Tomoka Hatakeyama
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Chihiro Iwaguro
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Ryotaro Mitsugi
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Ayaka Moriyama
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Takumi Sano
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Rei Ogawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Nobuyuki Tanaka
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, Bunkyo-ku, Tokyo, 113-8602, Japan.
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49
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Cui Z, Wei H, Goding C, Cui R. Stem cell heterogeneity, plasticity, and regulation. Life Sci 2023; 334:122240. [PMID: 37925141 DOI: 10.1016/j.lfs.2023.122240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/06/2023]
Abstract
As a population of homogeneous cells with both self-renewal and differentiation potential, stem cell pools are highly compartmentalized and contain distinct subsets that exhibit stable but limited heterogeneity during homeostasis. However, their striking plasticity is showcased under natural or artificial stress, such as injury, transplantation, cancer, and aging, leading to changes in their phenotype, constitution, metabolism, and function. The complex and diverse network of cell-extrinsic niches and signaling pathways, together with cell-intrinsic genetic and epigenetic regulators, tightly regulate both the heterogeneity during homeostasis and the plasticity under perturbation. Manipulating these factors offers better control of stem cell behavior and a potential revolution in the current state of regenerative medicine. However, disruptions of normal regulation by genetic mutation or excessive plasticity acquisition may contribute to the formation of tumors. By harnessing innovative techniques that enhance our understanding of stem cell heterogeneity and employing novel approaches to maximize the utilization of stem cell plasticity, stem cell therapy holds immense promise for revolutionizing the future of medicine.
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Affiliation(s)
- Ziyang Cui
- Department of Dermatology and Venerology, Peking University First Hospital, Beijing 100034, China.
| | - Hope Wei
- Department of Biology, Boston University, 5 Cummington Mall, Boston, MA 02215, United States of America
| | - Colin Goding
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX37DQ, UK
| | - Rutao Cui
- Skin Disease Research Institute, The 2nd Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
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50
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Bai R, Guo Y, Liu W, Song Y, Yu Z, Ma X. The Roles of WNT Signaling Pathways in Skin Development and Mechanical-Stretch-Induced Skin Regeneration. Biomolecules 2023; 13:1702. [PMID: 38136575 PMCID: PMC10741662 DOI: 10.3390/biom13121702] [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: 10/16/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 12/24/2023] Open
Abstract
The WNT signaling pathway plays a critical role in a variety of biological processes, including development, adult tissue homeostasis maintenance, and stem cell regulation. Variations in skin conditions can influence the expression of the WNT signaling pathway. In light of the above, a deeper understanding of the specific mechanisms of the WNT signaling pathway in different physiological and pathological states of the skin holds the potential to significantly advance clinical treatments of skin-related diseases. In this review, we present a comprehensive analysis of the molecular and cellular mechanisms of the WNT signaling pathway in skin development, wound healing, and mechanical stretching. Our review sheds new light on the crucial role of the WNT signaling pathway in the regulation of skin physiology and pathology.
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Affiliation(s)
- Ruoxue Bai
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yaotao Guo
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
- Department of The Cadet Team 6, School of Basic Medicine, Fourth Military Medical University, Xi’an 710032, China
| | - Wei Liu
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yajuan Song
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Zhou Yu
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Xianjie Ma
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
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