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Wang M, Hong Y, Fu X, Sun X. Advances and applications of biomimetic biomaterials for endogenous skin regeneration. Bioact Mater 2024; 39:492-520. [PMID: 38883311 PMCID: PMC11179177 DOI: 10.1016/j.bioactmat.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 06/18/2024] Open
Abstract
Endogenous regeneration is becoming an increasingly important strategy for wound healing as it facilitates skin's own regenerative potential for self-healing, thereby avoiding the risks of immune rejection and exogenous infection. However, currently applied biomaterials for inducing endogenous skin regeneration are simplistic in their structure and function, lacking the ability to accurately mimic the intricate tissue structure and regulate the disordered microenvironment. Novel biomimetic biomaterials with precise structure, chemical composition, and biophysical properties offer a promising avenue for achieving perfect endogenous skin regeneration. Here, we outline the recent advances in biomimetic materials induced endogenous skin regeneration from the aspects of structural and functional mimicry, physiological process regulation, and biophysical property design. Furthermore, novel techniques including in situ reprograming, flexible electronic skin, artificial intelligence, single-cell sequencing, and spatial transcriptomics, which have potential to contribute to the development of biomimetic biomaterials are highlighted. Finally, the prospects and challenges of further research and application of biomimetic biomaterials are discussed. This review provides reference to address the clinical problems of rapid and high-quality skin regeneration.
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Affiliation(s)
- Mengyang Wang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100089, PR China
| | - Yiyue Hong
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100089, PR China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100089, PR China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, PR China
| | - Xiaoyan Sun
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, Beijing, 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Beijing, 100089, PR China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, PR China
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2
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Satta JP, Lan Q, Taketo MM, Mikkola ML. Stabilization of Epithelial β-Catenin Compromises Mammary Cell Fate Acquisition and Branching Morphogenesis. J Invest Dermatol 2024; 144:1223-1237.e10. [PMID: 38159590 DOI: 10.1016/j.jid.2023.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 01/03/2024]
Abstract
The Wnt/β-catenin pathway plays a critical role in cell fate specification, morphogenesis, and stem cell activation across diverse tissues, including the skin. In mammals, the embryonic surface epithelium gives rise to the epidermis as well as the associated appendages including hair follicles and mammary glands, both of which depend on epithelial Wnt/β-catenin activity for initiation of their development. Later on, Wnts are thought to enhance mammary gland growth and branching, whereas in hair follicles, they are essential for hair shaft formation. In this study, we report a strong downregulation of epithelial Wnt/β-catenin activity as the mammary bud progresses to branching. We show that forced activation of epithelial β-catenin severely compromises embryonic mammary gland branching. However, the phenotype of conditional Lef1-deficient embryos implies that a low level of Wnt/β-catenin activity is necessary for mammary cell survival. Transcriptomic profiling suggests that sustained high β-catenin activity leads to maintenance of mammary bud gene signature at the expense of outgrowth/branching gene signature. In addition, it leads to upregulation of epidermal differentiation genes. Strikingly, we find a partial switch to hair follicle fate early on upon stabilization of β-catenin, suggesting that the level of epithelial Wnt/β-catenin signaling activity may contribute to the choice between skin appendage identities.
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Affiliation(s)
- Jyoti Prabha Satta
- Cell and Tissue Dynamics Research Program, Institute of Biotechnology, Helsinki Institute of Life Sciences (HILIFE), University of Helsinki, Helsinki, Finland
| | - Qiang Lan
- Cell and Tissue Dynamics Research Program, Institute of Biotechnology, Helsinki Institute of Life Sciences (HILIFE), University of Helsinki, Helsinki, Finland
| | - Makoto Mark Taketo
- Colon Cancer Project, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Marja L Mikkola
- Cell and Tissue Dynamics Research Program, Institute of Biotechnology, Helsinki Institute of Life Sciences (HILIFE), University of Helsinki, Helsinki, Finland.
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3
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Ran R, Li L, Xu T, Huang J, He H, Chen Y. Revealing mitf functions and visualizing allografted tumor metastasis in colorless and immunodeficient Xenopus tropicalis. Commun Biol 2024; 7:275. [PMID: 38443437 PMCID: PMC10915148 DOI: 10.1038/s42003-024-05967-3] [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: 07/17/2023] [Accepted: 02/23/2024] [Indexed: 03/07/2024] Open
Abstract
Transparent immunodeficient animal models not only enhance in vivo imaging investigations of visceral organ development but also facilitate in vivo tracking of transplanted tumor cells. However, at present, transparent and immunodeficient animal models are confined to zebrafish, presenting substantial challenges for real-time, in vivo imaging studies addressing specific biological inquiries. Here, we employed a mitf-/-/prkdc-/-/il2rg-/- triple-knockout strategy to establish a colorless and immunodeficient amphibian model of Xenopus tropicalis. By disrupting the mitf gene, we observed the loss of melanophores, xanthophores, and granular glands in Xenopus tropicalis. Through the endogenous mitf promoter to drive BRAFV600E expression, we confirmed mitf expression in melanophores, xanthophores and granular glands. Moreover, the reconstruction of the disrupted site effectively reinstated melanophores, xanthophores, and granular glands, further highlighting the crucial role of mitf as a regulator in their development. By crossing mitf-/- frogs with prkdc-/-/il2rg-/- frogs, we generated a mitf-/-/prkdc-/-/il2rg-/- Xenopus tropicalis line, providing a colorless and immunodeficient amphibian model. Utilizing this model, we successfully observed intravital metastases of allotransplanted xanthophoromas and migrations of allotransplanted melanomas. Overall, colorless and immunodeficient Xenopus tropicalis holds great promise as a valuable platform for tumorous and developmental biology research.
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Affiliation(s)
- Rensen Ran
- Department of Chemical Biology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, School of Life Sciences, Southern University of Science and Technology, 518055, Shenzhen, China.
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, China.
| | - Lanxin Li
- Department of Chemical Biology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, School of Life Sciences, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Tingting Xu
- Fujian Medical University Union Hospital, 350001, Fuzhou, China
| | - Jixuan Huang
- Department of Chemical Biology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, School of Life Sciences, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Huanhuan He
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Zhuhai, China
| | - Yonglong Chen
- Department of Chemical Biology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, School of Life Sciences, Southern University of Science and Technology, 518055, Shenzhen, China.
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4
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Jiang Y, Perez-Moreno M. Translational frontiers: insight from lymphatics in skin regeneration. Front Physiol 2024; 15:1347558. [PMID: 38487264 PMCID: PMC10937408 DOI: 10.3389/fphys.2024.1347558] [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: 12/01/2023] [Accepted: 02/01/2024] [Indexed: 03/17/2024] Open
Abstract
The remarkable regenerative ability of the skin, governed by complex molecular mechanisms, offers profound insights into the skin repair processes and the pathogenesis of various dermatological conditions. This understanding, derived from studies in human skin and various model systems, has not only deepened our knowledge of skin regeneration but also facilitated the development of skin substitutes in clinical practice. Recent research highlights the crucial role of lymphatic vessels in skin regeneration. Traditionally associated with fluid dynamics and immune modulation, these vessels are now recognized for interacting with skin stem cells and coordinating regeneration. This Mini Review provides an overview of recent advancements in basic and translational research related to skin regeneration, focusing on the dynamic interplay between lymphatic vessels and skin biology. Key highlights include the critical role of stem cell-lymphatic vessel crosstalk in orchestrating skin regeneration, emerging translational approaches, and their implications for skin diseases. Additionally, the review identifies research gaps and proposes potential future directions, underscoring the significance of this rapidly evolving research arena.
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Affiliation(s)
| | - Mirna Perez-Moreno
- Section for Cell Biology and Physiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
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Li YY, Ji SF, Fu XB, Jiang YF, Sun XY. Biomaterial-based mechanical regulation facilitates scarless wound healing with functional skin appendage regeneration. Mil Med Res 2024; 11:13. [PMID: 38369464 PMCID: PMC10874556 DOI: 10.1186/s40779-024-00519-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 01/30/2024] [Indexed: 02/20/2024] Open
Abstract
Scar formation resulting from burns or severe trauma can significantly compromise the structural integrity of skin and lead to permanent loss of skin appendages, ultimately impairing its normal physiological function. Accumulating evidence underscores the potential of targeted modulation of mechanical cues to enhance skin regeneration, promoting scarless repair by influencing the extracellular microenvironment and driving the phenotypic transitions. The field of skin repair and skin appendage regeneration has witnessed remarkable advancements in the utilization of biomaterials with distinct physical properties. However, a comprehensive understanding of the underlying mechanisms remains somewhat elusive, limiting the broader application of these innovations. In this review, we present two promising biomaterial-based mechanical approaches aimed at bolstering the regenerative capacity of compromised skin. The first approach involves leveraging biomaterials with specific biophysical properties to create an optimal scarless environment that supports cellular activities essential for regeneration. The second approach centers on harnessing mechanical forces exerted by biomaterials to enhance cellular plasticity, facilitating efficient cellular reprogramming and, consequently, promoting the regeneration of skin appendages. In summary, the manipulation of mechanical cues using biomaterial-based strategies holds significant promise as a supplementary approach for achieving scarless wound healing, coupled with the restoration of multiple skin appendage functions.
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Affiliation(s)
- Ying-Ying Li
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Shuai-Fei Ji
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Xiao-Bing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China.
| | - Yu-Feng Jiang
- Department of Tissue Regeneration and Wound Repair, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Xiao-Yan Sun
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China.
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6
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Dingwall HL, Tomizawa RR, Aharoni A, Hu P, Qiu Q, Kokalari B, Martinez SM, Donahue JC, Aldea D, Mendoza M, Glass IA, Wu H, Kamberov YG. Sweat gland development requires an eccrine dermal niche and couples two epidermal programs. Dev Cell 2024; 59:20-32.e6. [PMID: 38096824 PMCID: PMC10872420 DOI: 10.1016/j.devcel.2023.11.015] [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: 05/09/2023] [Revised: 10/02/2023] [Accepted: 11/14/2023] [Indexed: 12/22/2023]
Abstract
Eccrine sweat glands are indispensable for human thermoregulation and, similar to other mammalian skin appendages, form from multipotent epidermal progenitors. Limited understanding of how epidermal progenitors specialize to form these vital organs has precluded therapeutic efforts toward their regeneration. Herein, we applied single-nucleus transcriptomics to compare the expression content of wild-type, eccrine-forming mouse skin to that of mice harboring a skin-specific disruption of Engrailed 1 (En1), a transcription factor that promotes eccrine gland formation in humans and mice. We identify two concurrent but disproportionate epidermal transcriptomes in the early eccrine anlagen: one that is shared with hair follicles and one that is En1 dependent and eccrine specific. We demonstrate that eccrine development requires the induction of a dermal niche proximal to each developing gland in humans and mice. Our study defines the signatures of eccrine identity and uncovers the eccrine dermal niche, setting the stage for targeted regeneration and comprehensive skin repair.
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Affiliation(s)
- Heather L Dingwall
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Reiko R Tomizawa
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Adam Aharoni
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Peng Hu
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Qi Qiu
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Blerina Kokalari
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | | | - Joan C Donahue
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Daniel Aldea
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Meryl Mendoza
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Ian A Glass
- Department of Pediatrics, University of Washington, Seattle, WA, USA
| | - Hao Wu
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA
| | - Yana G Kamberov
- Department of Genetics, Perelman School of Medicine, Philadelphia, PA, USA.
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7
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Branch MC, Ezhkova E. Defining the fate trajectory of eccrine gland formation. Dev Cell 2024; 59:1-3. [PMID: 38194909 PMCID: PMC10838196 DOI: 10.1016/j.devcel.2023.12.004] [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: 12/07/2023] [Revised: 12/08/2023] [Accepted: 12/08/2023] [Indexed: 01/11/2024]
Abstract
Eccrine glands secrete water onto the surface of human skin to regulate body temperature. In this issue of Developmental Cell, Dingwall et al. dissect the transcriptional signature of developing eccrine glands, and they also uncover a unique dermal niche that is responsible for promoting eccrine gland developmental progression.
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Affiliation(s)
- Meagan C Branch
- Department of Cell, Developmental, and Regenerative Biology, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Elena Ezhkova
- Department of Cell, Developmental, and Regenerative Biology, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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8
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Yang X, Xiong M, Fu X, Sun X. Bioactive materials for in vivo sweat gland regeneration. Bioact Mater 2024; 31:247-271. [PMID: 37637080 PMCID: PMC10457517 DOI: 10.1016/j.bioactmat.2023.07.025] [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: 04/20/2023] [Revised: 07/30/2023] [Accepted: 07/30/2023] [Indexed: 08/29/2023] Open
Abstract
Loss of sweat glands (SwGs) commonly associated with extensive skin defects is a leading cause of hyperthermia and heat stroke. In vivo tissue engineering possesses the potential to take use of the body natural ability to regenerate SwGs, making it more conducive to clinical translation. Despite recent advances in regenerative medicine, reconstructing SwG tissue with the same structure and function as native tissue remains challenging. Elucidating the SwG generation mechanism and developing biomaterials for in vivo tissue engineering is essential for understanding and developing in vivo SwG regenerative strategies. Here, we outline the cell biology associated with functional wound healing and the characteristics of bioactive materials. We critically summarize the recent progress in bioactive material-based cell modulation approaches for in vivo SwG regeneration, including the recruitment of endogenous cells to the skin lesion for SwG regeneration and in vivo cellular reprogramming for SwG regeneration. We discussed the re-establishment of microenvironment via bioactive material-mediated regulators. Besides, we offer promising perspectives for directing in situ SwG regeneration via bioactive material-based cell-free strategy, which is a simple and effective approach to regenerate SwG tissue with both fidelity of structure and function. Finally, we discuss the opportunities and challenges of in vivo SwG regeneration in detail. The molecular mechanisms and cell fate modulation of in vivo SwG regeneration will provide further insights into the regeneration of patient-specific SwGs and the development of potential intervention strategies for gland-derived diseases.
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Affiliation(s)
- Xinling Yang
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, PR China
| | - Mingchen Xiong
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, PR China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, PR China
| | - Xiaoyan Sun
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College, China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, PR China
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Nishimura Y, Ryo E, Inoue S, Kawazu M, Ueno T, Namikawa K, Takahashi A, Ogata D, Yoshida A, Yamazaki N, Mano H, Yatabe Y, Mori T. Strategic Approach to Heterogeneity Analysis of Cutaneous Adnexal Carcinomas Using Computational Pathology and Genomics. JID INNOVATIONS 2023; 3:100229. [PMID: 37965425 PMCID: PMC10641284 DOI: 10.1016/j.xjidi.2023.100229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 07/30/2023] [Accepted: 08/07/2023] [Indexed: 11/16/2023] Open
Abstract
Cutaneous adnexal tumors are neoplasms that arise from skin appendages. Their morphologic diversity and phenotypic variability with rare progression to malignancy make them difficult to diagnose and classify, and there is currently no established treatment strategy. To overcome these difficulties, this study investigated the transcription factor SOX9 expression, morphology, and genetics of skin adnexal tumors for understanding their biology, especially their histogenesis. We showed that cutaneous adnexal tumors and their nontumor counterparts of skin and appendages exhibit expression patterns similar to that of SOX9. Its expression intensity and pattern, as well as histopathologic evaluation of tumors, were analyzed using digital images of 69 normal skin adnexal 9-type organs and 185 skin adnexal 29-type tumors as references. It was possible to distinguish basal cell carcinoma from squamous cell carcinoma, sebaceous carcinoma, and pilomatrixoma with significant differences, along with porocarcinoma from squamous cell carcinoma. Furthermore, unsupervised machine learning "computational pathology" was used to derive a multiregion whole-exome sequencing fusion method termed "genocomputed pathology." The genocomputed pathology of three representable adnexal carcinomas (porocarcinoma, hidradenocarcinoma, and spiradenocarcinoma) was evaluated for total nine cases. We showed that there was more heterogeneity than expected within the tumors as well as the coexistence of components lacking driver fusion genes. The presence or absence of potential driver genes, such as PIK3CA, YAP1, and PTEN, in each region was identified, highlighting a therapeutic strategy for cutaneous adnexal carcinoma encompassing heterogeneous tumors.
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Affiliation(s)
- Yuuki Nishimura
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
- Course of Advanced Clinical Research of Cancer, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Eijitsu Ryo
- Division of Molecular Pathology, National Cancer Center Reserch Institute, Tokyo, Japan
| | - Satoshi Inoue
- Division of Cellular Signaling, National Cancer Center Reserch Institute, Tokyo, Japan
| | - Masahito Kawazu
- Division of Cellular Signaling, National Cancer Center Reserch Institute, Tokyo, Japan
| | - Toshihide Ueno
- Division of Cellular Signaling, National Cancer Center Reserch Institute, Tokyo, Japan
| | - Kenjiro Namikawa
- Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Akira Takahashi
- Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Dai Ogata
- Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Naoya Yamazaki
- Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroyuki Mano
- Division of Cellular Signaling, National Cancer Center Reserch Institute, Tokyo, Japan
| | - Yasushi Yatabe
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
- Course of Advanced Clinical Research of Cancer, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Division of Molecular Pathology, National Cancer Center Reserch Institute, Tokyo, Japan
| | - Taisuke Mori
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
- Division of Molecular Pathology, National Cancer Center Reserch Institute, Tokyo, Japan
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10
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Chen Z, Zhao J, Wang C, Liu X, Chen Z, Zhou J, Zhang L, Zhang C, Li H. Epithelial polarity-driven membrane separation but not cavitation regulates lumen formation of rat eccrine sweat glands. Acta Histochem 2023; 125:152093. [PMID: 37757514 DOI: 10.1016/j.acthis.2023.152093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/31/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Each eccrine sweat gland (ESG) is a single-tubular structure with a central lumen, and the formation of hollow lumen in the initial solid cell mass is a key developmental process. To date, there are no reports on the mechanism of native ESG lumen formation. METHODS To investigate the lumen morphogenesis and the lumen formation mechanisms of Sprague-Dawley (SD) rat ESGs, SD rat hind-footpads at E20.5, P1-P5, P7, P9, P12, P21, P28 and P56 were obtained. The lumen morphogenesis of ESGs was examined by HE staining and immunofluorescence staining for polarity markers. The possible mechanisms of lumen formation were detected by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) apoptosis assay and autophagy marker LC3B immunofluorescence staining, and further explored by ouabain intervention experiment. RESULTS In SD rat ESGs, the microlumen was formed at P1, and the small intact lumen with apical-basal polarity appeared at P3. The expression of apical marker F-actin, basal marker Laminin, basolateral marker E-cadherin was consistent with the timing of lumen formation of SD rat ESGs. During rat ESG development, apoptosis and autophagy were not detected. However, inhibition of Na+-K+-ATPase (NKA) with ouabain resulted in decreased lumen size, although neither the timing of lumen formation nor the expression of polarity proteins was altered. CONCLUSIONS Epithelial polarity-driven membrane separation but not cavitation regulates lumen formation of SD rat ESGs. NKA-regulated fluid accumulation drives lumen expansion.
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Affiliation(s)
- Zixiu Chen
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Jinzhou Medical University Graduate Training Base, Shiyan, Hubei Province, China
| | - Junhong Zhao
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Jinzhou Medical University Graduate Training Base, Shiyan, Hubei Province, China
| | - Cangyu Wang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Jinzhou Medical University Graduate Training Base, Shiyan, Hubei Province, China
| | - Xiang Liu
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Jinzhou Medical University Graduate Training Base, Shiyan, Hubei Province, China
| | - Zihua Chen
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Jinzhou Medical University Graduate Training Base, Shiyan, Hubei Province, China
| | - Jianda Zhou
- Department of Burns and Plastic Surgery, The Third Hospital of Central South University, Changsha, Hunan, China
| | - Lei Zhang
- Mental Health Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China.
| | - Cuiping Zhang
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department and Fourth Medical Center of PLA General Hospital, Beijing, China.
| | - Haihong Li
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Jinzhou Medical University Graduate Training Base, Shiyan, Hubei Province, China; Department of Burns and Plastic Surgery, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, China.
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11
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Tan CMTHS, Lee R, Pei Ling Dua J. Sudden onset anhidrosis in an otherwise healthy male. SKIN HEALTH AND DISEASE 2023; 3:e242. [PMID: 37538324 PMCID: PMC10395636 DOI: 10.1002/ski2.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 04/05/2023] [Accepted: 04/18/2023] [Indexed: 08/05/2023]
Abstract
Acquired idiopathic generalised anhidrosis (AIGA) is a rare disorder that is characterised by sudden onset generalised absence of sweating without any dermatological, neurological or sweat gland abnormalities. AIGA predominately affects young males, mostly involving patients of Asian descent. There have been approximately 100 reported cases worldwide, most of which were reported in Japan. In Singapore, it is rarely seen with one case series on 15 cases of AIGA reported in a 2014 study. Here, we present a case of AIGA who responded well to conservative management with sweating activity.
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Affiliation(s)
| | - Rayson Lee
- Tan Tock Seng HospitalSingaporeSingapore
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12
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Wang Y, Zhang F, Yao B, Hou L, Li Z, Song W, Kong Y, Tan Y, Fu X, Huang S. Notch4 participates in mesenchymal stem cell-induced differentiation in 3D-printed matrix and is implicated in eccrine sweat gland morphogenesis. BURNS & TRAUMA 2023; 11:tkad032. [PMID: 37397510 PMCID: PMC10309082 DOI: 10.1093/burnst/tkad032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/16/2023] [Accepted: 05/22/2023] [Indexed: 07/04/2023]
Abstract
Background Eccrine sweat gland (SG) plays a crucial role in thermoregulation but exhibits very limited regenerative potential. Although SG lineage-restricted niches dominate SG morphogenesis and benefit SG regeneration, rebuilding niches in vivo is challenging for stem cell therapeutic applications. Hence, we attempted to screen and tune the critical niche-responding genes that dually respond to both biochemical and structural cues, which might be a promising strategy for SG regeneration. Methods An artificial SG lineage-restricted niche consisting of mouse plantar dermis homogenates (i.e. biochemical cues) and 3D architecture (i.e. structural cues) was built in vitro by using an extrusion-based 3D bioprinting approach. Mouse bone marrow-derived mesenchymal stem cells (MSCs) were then differentiated into the induced SG cells in the artificial SG lineage-restricted niche. To decouple biochemical cues from structural cues, the transcriptional changes aroused by pure biochemical cues, pure structural cues and synergistic effects of both cues were analyzed pairwise, respectively. Notably, only niche-dual-responding genes that are differentially expressed in response to both biochemical and structural cues and participate in switching MSC fates towards SG lineage were screened out. Validations in vitro and in vivo were respectively conducted by inhibiting or activating the candidate niche-dual-responding gene(s) to explore the consequent effects on SG differentiation. Results Notch4 is one of the niche-dual-responding genes that enhanced MSC stemness and promoted SG differentiation in 3D-printed matrix in vitro. Furthermore, inhibiting Notch4 specifically reduced keratin 19-positive epidermal stem cells and keratin 14-positive SG progenitor cells, thus further delaying embryonic SG morphogenesis in vivo. Conclusions Notch4 not only participates in mouse MSC-induced SG differentiation in vitro but is also implicated in mouse eccrine SG morphogenesis in vivo.
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Affiliation(s)
| | | | | | - Linhao Hou
- Department of Orthopedics, the Fourth Affiliated Hospital of China Medical University, 4 Chongshan East Road, Shenyang, 110032, P. R. China
| | - Zhao Li
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, Beijing, 100853, P. R. China
| | - Wei Song
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, Beijing, 100853, P. R. China
| | - Yi Kong
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, Beijing, 100853, P. R. China
| | - Yaxin Tan
- College of Graduate, Tianjin Medical University, 22 Qi Xiang Tai Road, Heping District, Tianjin, 300070, P.R. China
| | | | - Sha Huang
- Correspondence. Xiaobing Fu, ; Sha Huang,
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13
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Liu H, Santos LL, Smith SH. Modulation of Disease-Associated Pathways in Hidradenitis Suppurativa by the Janus Kinase 1 Inhibitor Povorcitinib: Transcriptomic and Proteomic Analyses of Two Phase 2 Studies. Int J Mol Sci 2023; 24:ijms24087185. [PMID: 37108348 PMCID: PMC10139090 DOI: 10.3390/ijms24087185] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Janus kinase (JAK)/signal transducer and activator of transcription signaling (STAT) has been implicated in the pathophysiology of hidradenitis suppurativa (HS). This study evaluated treatment-related transcriptomic and proteomic changes in patients with moderate-to-severe HS treated with the investigational oral JAK1-selective inhibitor povorcitinib (INCB054707) in two phase 2 trials. Lesional skin punch biopsies (baseline and Week 8) were taken from active HS lesions of patients receiving povorcitinib (15 or 30 mg) once daily (QD) or a placebo. RNA-seq and gene set enrichment analyses were used to evaluate the effects of povorcitinib on differential gene expression among previously reported gene signatures from HS and wounded skin. The number of differentially expressed genes was the greatest in the 30 mg povorcitinib QD dose group, consistent with the published efficacy results. Notably, the genes impacted reflected JAK/STAT signaling transcripts downstream of TNF-α signaling, or those regulated by TGF-β. Proteomic analyses were conducted on blood samples obtained at baseline and Weeks 4 and 8 from patients receiving povorcitinib (15, 30, 60, or 90 mg) QD or placebo. Povorcitinib was associated with transcriptomic downregulation of multiple HS and inflammatory signaling markers as well as the reversal of gene expression previously associated with HS lesional and wounded skin. Povorcitinib also demonstrated dose-dependent modulation of several proteins implicated in HS pathophysiology, with changes observed by Week 4. The reversal of HS lesional gene signatures and rapid, dose-dependent protein regulation highlight the potential of JAK1 inhibition to modulate underlying disease pathology in HS.
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Affiliation(s)
- Huiqing Liu
- Incyte Corporation, Wilmington, DE 19803, USA
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Yuan X, Duan X, Enhejirigala, Li Z, Yao B, Song W, Wang Y, Kong Y, Zhu S, Zhang F, Liang L, Zhang M, Zhang C, Kong D, Zhu M, Huang S, Fu X. Reciprocal interaction between vascular niche and sweat gland promotes sweat gland regeneration. Bioact Mater 2023; 21:340-357. [PMID: 36185745 PMCID: PMC9483744 DOI: 10.1016/j.bioactmat.2022.08.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/26/2022] Open
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15
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Aldea D, Kokalari B, Atsuta Y, Dingwall HL, Zheng Y, Nace A, Cotsarelis G, Kamberov YG. Differential modularity of the mammalian Engrailed 1 enhancer network directs sweat gland development. PLoS Genet 2023; 19:e1010614. [PMID: 36745673 PMCID: PMC9934363 DOI: 10.1371/journal.pgen.1010614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/16/2023] [Accepted: 01/13/2023] [Indexed: 02/07/2023] Open
Abstract
Enhancers are context-specific regulators of expression that drive biological complexity and variation through the redeployment of conserved genes. An example of this is the enhancer-mediated control of Engrailed 1 (EN1), a pleiotropic gene whose expression is required for the formation of mammalian eccrine sweat glands. We previously identified the En1 candidate enhancer (ECE) 18 cis-regulatory element that has been highly and repeatedly derived on the human lineage to potentiate ectodermal EN1 and induce our species' uniquely high eccrine gland density. Intriguingly, ECE18 quantitative activity is negligible outside of primates and ECE18 is not required for En1 regulation and eccrine gland formation in mice, raising the possibility that distinct enhancers have evolved to modulate the same trait. Here we report the identification of the ECE20 enhancer and show it has conserved functionality in mouse and human developing skin ectoderm. Unlike ECE18, knock-out of ECE20 in mice reduces ectodermal En1 and eccrine gland number. Notably, we find ECE20, but not ECE18, is also required for En1 expression in the embryonic mouse brain, demonstrating that ECE20 is a pleiotropic En1 enhancer. Finally, that ECE18 deletion does not potentiate the eccrine phenotype of ECE20 knock-out mice supports the secondary incorporation of ECE18 into the regulation of this trait in primates. Our findings reveal that the mammalian En1 regulatory machinery diversified to incorporate both shared and lineage-restricted enhancers to regulate the same phenotype, and also have implications for understanding the forces that shape the robustness and evolvability of developmental traits.
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Affiliation(s)
- Daniel Aldea
- Department of Genetics, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Blerina Kokalari
- Department of Genetics, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Yuji Atsuta
- Genetics Department, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Heather L. Dingwall
- Department of Genetics, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Ying Zheng
- Department of Dermatology, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Arben Nace
- Department of Dermatology, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - George Cotsarelis
- Department of Dermatology, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Yana G. Kamberov
- Department of Genetics, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
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16
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Cao M, Zhang L, Cheng J, Wang C, Zhao J, Liu X, Yan Y, Tang Y, Chen Z, Li H. Differential antigen expression between human apocrine sweat glands and eccrine sweat glands. Eur J Histochem 2022; 67:3559. [PMID: 36546419 PMCID: PMC9827426 DOI: 10.4081/ejh.2023.3559] [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: 09/18/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Bromhidrosis has a great negative impact on personal occupation and social psychology. It is not yet clear whether bromhidrosis is caused by apocrine sweat glands or the co-action of apocrine sweat glands and eccrine sweat glands. To distinguish between apocrine sweat glands and eccrine sweat glands, specific antigen markers for apocrine sweat glands and eccrine sweat glands must be found first. In the study, we detected the expression of K7, K18, K19, Na+-K+-2Cl- cotransporter 1 (NKCC1), carbonic anhydrase II (CAII), Forkhead transcription factor a1 (Foxa1), homeobox transcription factor engrailed homeobox1 (En1), gross cystic disease fluid protein-15 (GCDFP-15), mucin-1 (MUC-1), cluster of differentiation 15 (CD15) and apolipoprotein (APOD) in eccrine sweat glands and apocrine sweat glands by immunofluorescence staining. The results showed that K7, K18, K19, Foxa1, GCDFP-15 and MUC-1 were expressed in both apocrine and eccrine sweat glands, CD15 and APOD were only expressed in apocrine sweat glands, and CAII, NKCC1 and En1 were only expressed in eccrine sweat glands. We conclude that CD15 and APOD can serve as specific markers for apocrine sweat glands, while CAII, NKCC1 and En1 can serve as specific markers for eccrine sweat glands to differentiate the two sweat glands.
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Affiliation(s)
- Manxiu Cao
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei,*These authors contributed equally to this work
| | - Lei Zhang
- Department of Mental Health, Southern University of Science and Technology Hospital, Southern University of Science and Technology School of Medicine, Shenzhen, Guangdong,*These authors contributed equally to this work
| | - Jiaqi Cheng
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei,*These authors contributed equally to this work
| | - Cangyu Wang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei
| | - Junhong Zhao
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei
| | - Xiang Liu
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei
| | - Yongjing Yan
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei
| | - Yue Tang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei
| | - Zixiu Chen
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei
| | - Haihong Li
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei,Department of Wound Repair; Institute of Wound Repair and Regeneration Medicine, Southern University of Science and Technology Hospital, Southern University of Science and Technology School of Medicine, Shenzhen, Guangdong, China,Correspondence: Prof. Haihong Li, Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, 32 South Renmin Road, Shiyan 442000, Hubei, China.
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17
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Singaram S, Ramakrishnan K, Selvam J, Senthil M, Narayanamurthy V. Sweat gland morphology and physiology in diabetes, neuropathy, and nephropathy: a review. Arch Physiol Biochem 2022:1-15. [PMID: 36063413 DOI: 10.1080/13813455.2022.2114499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 08/02/2022] [Indexed: 11/02/2022]
Abstract
Context: Sweat glands (SGs) play a vital role in thermal regulation. The function and structure are altered during the different pathological conditions.Objective: These alterations are studied through three techniques: biopsy, sweat analytes and electrical activity of SG.Methods: The morphological study of SG through biopsy and various techniques involved in quantifying sweat analytes is focussed on here. Electrical activities of SG in diabetes, neuropathy and nephropathy cases are also discussed, highlighting their limitations and future scope.Results and Conclusion: The result of this review identified three areas of the knowledge gap. The first is wearable sensors to correlate pathological conditions. Secondly, there is no device to look for its structure and quantify its associated function. Finally, therapeutic applications of SG are explored, especially for renal failure. With these aspects, this paper provides information collection and correlates SG with pathologies related to diabetes. Hence this could help researchers develop suitable technologies for the gaps identified.
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Affiliation(s)
- Sudha Singaram
- Department of Biomedical Engineering, Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
| | - Kalpana Ramakrishnan
- Department of Biomedical Engineering, Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
| | - Jayashree Selvam
- Department of Biomedical Engineering, Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
| | - Mallika Senthil
- Department of Biomedical Engineering, Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
| | - Vigneswaran Narayanamurthy
- Faculty of Electrical and Electronic Engineering Technology, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia
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18
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Ito Y, Amagai M. Controlling skin microbiome as a new bacteriotherapy for inflammatory skin diseases. Inflamm Regen 2022; 42:26. [PMID: 36045395 PMCID: PMC9434865 DOI: 10.1186/s41232-022-00212-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/10/2022] [Indexed: 11/12/2022] Open
Abstract
The skin serves as the interface between the human body and the environment and interacts with the microbial community. The skin microbiota consists of microorganisms, such as bacteria, fungi, mites, and viruses, and they fluctuate depending on the microenvironment defined by anatomical location and physiological function. The balance of interactions between the host and microbiota plays a pivotal role in the orchestration of skin homeostasis; however, the disturbance of the balance due to an alteration in the microbial communities, namely, dysbiosis, leads to various skin disorders. Recent developments in sequencing technology have provided new insights into the structure and function of skin microbial communities. Based on high-throughput sequencing analysis, a growing body of evidence indicates that a new treatment using live bacteria, termed bacteriotherapy, is a feasible therapeutic option for cutaneous diseases caused by dysbiosis. In particular, the administration of specific bacterial strains has been investigated as an exclusionary treatment strategy against pathogens associated with chronic skin disorders, whereas the safety, efficacy, and sustainability of this therapeutic approach using isolated live bacteria need to be further explored. In this review, we summarize our current understanding of the skin microbiota, as well as therapeutic strategies using characterized strains of live bacteria for skin inflammatory diseases. The ecosystem formed by interactions between the host and skin microbial consortium is still largely unexplored; however, advances in our understanding of the function of the skin microbiota at the strain level will lead to the development of new therapeutic methods.
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Affiliation(s)
- Yoshihiro Ito
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,RIKEN Center for Integrative Medical Sciences (IMS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
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19
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Wang Y, Yao B, Duan X, Li J, Song W, Enhejirigala, Li Z, Yuan X, Kong Y, Zhang Y, Fu X, Huang S. Notch1 down-regulation in lineage-restricted niches is involved in the development of mouse eccrine sweat glands. J Mol Histol 2022; 53:857-867. [PMID: 36006534 DOI: 10.1007/s10735-022-10098-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/11/2022] [Indexed: 11/28/2022]
Abstract
Eccrine sweat gland (SG) restrictedly exists in mouse foot pads indicating that mouse plantar dermis (PD) contains the SG lineage-restricted niches. However, it is still unclear how these niches can affect stem cell fate towards SG. In this study, we tried to find the key cues by which stem cells sense and interact with the SG lineage-specific niches both in vivo and in vitro. Firstly, we used transcriptomics RNA sequencing analysis to screen differentially expressed genes between SG cells and epidermal stem cells (ES), and used proteomic analysis to screen differentially expressed proteins between PD and dorsal dermis (DD). Notch1 was found differentially expressed in both gene and protein levels, and was closely related to SG morphogenesis based on Gene Ontology (GO) enrichment analysis. Secondly, the spatial-temporal changes of Notch1 during embryonic and post-natal development of SG were detected. Thirdly, mouse mesenchymal stem cells (MSCs) were introduced into SG-like cells in vitro in order to further verify the possible roles of Notch1. Results revealed that Notch1 was continuously down-regulated along with the process of SG morphogenesis in vivo, and also along with the process that MSCs differentiated into SG-like cells in vitro. Hence, we suggest that Notch1 possibly acts as with roles of "gatekeeper" during SG development and regulates the interactions between stem cells and the SG lineage-specific niches. This study might help for understanding mechanisms of embryonic SG organogenesis.
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Affiliation(s)
- Yuzhen Wang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,Department of Burn and Plastic Surgery, Air Force Hospital of Chinese PLA Central Theater Command, 589 Yunzhong Road, Pingcheng District, 037006, Datong, Shanxi, P. R. China
| | - Bin Yao
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,Academy of Medical Engineering and Translational Medicine, Tianjin University, 300072, Tianjin, P. R. China
| | - Xianlan Duan
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,School of Medicine, Nankai University, 94 Wei Jing Road, 300071, Tianjin, P.R. China
| | - Jianjun Li
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,Department of General Surgery, the First Medical Centre, Chinese PLA General Hospital, 28 Fu Xing Road, 100853, Beijing, P.R. China
| | - Wei Song
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China
| | - Enhejirigala
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,Institute of Basic Medical Research, Inner Mongolia Medical University, Hohhot, Inner Mongolia, P.R. China.,College of Graduate, Tianjin Medical University, 22 Qi Xiang Tai Road, 300050, Tianjin, P.R. China
| | - Zhao Li
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China
| | - Xingyu Yuan
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,School of Medicine, Nankai University, 94 Wei Jing Road, 300071, Tianjin, P.R. China
| | - Yi Kong
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.,Department of Clinical Laboratory, the First Medical Center, Chinese PLA General Hospital, 28 Fu Xing Road, 100853, Beijing, P.R. China
| | - Yijie Zhang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China. .,PLA Key Laboratory of Tissue Repair and Regenerative Medicine, Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, 28 Fu Xing Road, 100048, Beijing, P.R. China.
| | - Sha Huang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, 28 Fu Xing Road, 100048, Beijing, P. R. China.
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20
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Chen Z, Zhao J, Yan Y, Zhang L, Du L, Liu X, Cao M, Wang C, Tang Y, Li H. Differential distribution and genetic determination of eccrine sweat glands and hair follicles in the volar skin of C57BL/6 mice and SD rats. BMC Vet Res 2022; 18:316. [PMID: 35974330 PMCID: PMC9380334 DOI: 10.1186/s12917-022-03416-z] [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: 12/18/2021] [Accepted: 08/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Eccrine sweat glands (ESGs) and hair follicles (HFs) are the prominent skin appendages regulating human body temperature. C57BL/6 mice and Sprague-Dawley (SD) rats are the most commonly used model animals for studying ESGs and HFs. Previous studies have shown the distribution of ESGs and HFs in volar hindfeet of C57BL/6 mice, but there are few or no reports on the distribution of ESGs and HFs in volar forefeet of C57BL/6 mice and volar feet of SD rats. Here, we investigated the differential distribution and genetic determination of ESGs and HFs in the volar skin of C57BL/6 mice and SD rats through gross observation, iodine-starch sweat test, double staining with Nile Blue A and Oil Red O, hematoxylin and eosin (HE) staining, double immunofluorescence staining of LIM Homeobox 2 (LHX2)/Na+-K+-ATPase α1(NKA) or LHX2/Na+-K+-2Cl- cotransporter 1 (NKCC1), and qRT-PCR detection of ESG-related gene Engrailed 1 (En1) and HF-related gene LHX2. RESULTS The results showed ESGs but no HFs in the footpads of C57BL/6 mice and SD rats, both ESGs and HFs in the inter-footpads (IFPs) of C57BL/6 mice, and neither ESGs nor HFs in the IFPs of SD rats. The relative quantitative change in En1 was consistent with the differential distribution of ESGs, and the relative quantitative change of LHX2 was consistent with the differential distribution of HFs. CONCLUSION C57BL/6 mice and SD rats had their own characteristics in the distribution of ESGs and HFs in the volar skin, and researchers should choose mice or rats, and even forefeet or hindfeet as their research object according to different purposes. The study provides a basis for selection of optimal animal models to study development, wound healing and regeneration of skin appendages.
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Affiliation(s)
- Zixiu Chen
- Jinzhou Medical University Graduate Training Base, Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Junhong Zhao
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China.,Hubei Clinical Medical Research Center of Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Yongjing Yan
- Jinzhou Medical University Graduate Training Base, Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Lei Zhang
- Mental Health Center, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Lijie Du
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China.,Hubei Clinical Medical Research Center of Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Xiang Liu
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Manxiu Cao
- Jinzhou Medical University Graduate Training Base, Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Cangyu Wang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Yue Tang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China
| | - Haihong Li
- Jinzhou Medical University Graduate Training Base, Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China. .,Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China. .,Hubei Clinical Medical Research Center of Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei Province, China. .,Department of Wound Repair; Institute of Wound Repair and Regeneration Medicine, Southern University of Science and Technology Hospital, Southern University of Science and Technology School of Medicine, Shenzhen, China.
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Lee J, van der Valk WH, Serdy SA, Deakin C, Kim J, Le AP, Koehler KR. Generation and characterization of hair-bearing skin organoids from human pluripotent stem cells. Nat Protoc 2022; 17:1266-1305. [PMID: 35322210 PMCID: PMC10461778 DOI: 10.1038/s41596-022-00681-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 01/04/2022] [Indexed: 12/28/2022]
Abstract
Human skin uses millions of hairs and glands distributed across the body surface to function as an external barrier, thermoregulator and stimuli sensor. The large-scale generation of human skin with these appendages would be beneficial, but is challenging. Here, we describe a detailed protocol for generating hair-bearing skin tissue entirely from a homogeneous population of human pluripotent stem cells in a three-dimensional in vitro culture system. Defined culture conditions are used over a 2-week period to induce differentiation of pluripotent stem cells to surface ectoderm and cranial neural crest cells, which give rise to the epidermis and dermis, respectively, in each organoid unit. After 60 d of incubation, the skin organoids produce hair follicles. By day ~130, the skin organoids reach full complexity and contain stratified skin layers, pigmented hair follicles, sebaceous glands, Merkel cells and sensory neurons, recapitulating the cell composition and architecture of fetal skin tissue at week 18 of gestation. Skin organoids can be maintained in culture using this protocol for up to 150 d, enabling the organoids to be used to investigate basic skin biology, model disease and, further, reconstruct or regenerate skin tissue.
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Affiliation(s)
- Jiyoon Lee
- Department of Otolaryngology, Boston Children's Hospital, Boston, MA, USA.
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA.
- Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, MA, USA.
- Department of Surgery, Harvard Medical School, Boston, MA, USA.
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, USA.
| | - Wouter H van der Valk
- Department of Otolaryngology, Boston Children's Hospital, Boston, MA, USA
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, USA
- Department of Otorhinolaryngology and Head & Neck Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - Sara A Serdy
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA
| | - CiCi Deakin
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA
- Department of Biological Engineering, Wentworth Institute of Technology, Boston, MA, USA
| | - Jin Kim
- Department of Otolaryngology, Boston Children's Hospital, Boston, MA, USA
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA
- Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, MA, USA
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, USA
| | - Anh Phuong Le
- Department of Otolaryngology, Boston Children's Hospital, Boston, MA, USA
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA
- Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, MA, USA
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, USA
| | - Karl R Koehler
- Department of Otolaryngology, Boston Children's Hospital, Boston, MA, USA.
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA.
- Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, MA, USA.
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, USA.
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22
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Welzel J, Grüdl S, Banowski B, Stark H, Sättler A, Welss T. A novel cell line from human eccrine sweat gland duct cells for investigating sweating physiology. Int J Cosmet Sci 2022; 44:216-231. [PMID: 35262932 DOI: 10.1111/ics.12769] [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: 02/12/2022] [Accepted: 03/03/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Human eccrine sweat glands represent vital components of the skin involved in regulating body temperature. Especially the eccrine duct, which opens directly into the skin surface and releases the aqueous sweat, constitutes the first contact point with topically applied substances. For scientific investigations and to understand the underlying sweating mechanism on a cellular level defined cellular material is beneficial. We, therefore, strived to generate a cell line derived from human eccrine sweat gland duct cells for identifying new mechanisms in sweating control, as such a standardize cell line is currently lacking. MATERIAL AND METHODS Isolated primary human eccrine sweat gland duct cells were transduced with simian virus 40 large T antigen (SV40T) by lentiviral transduction. Successfully SV40T-transduced clones were selected by single cell cloning with one clone, named 1D10, being particularly described in this work. RESULTS In performed cellular investigations, SV40T-transduced duct-derived cells exhibited an extended lifespan with stable population doubling times suggesting its immortality. Besides, 1D10 clonal cell culture demonstrated similarities with parental, primary duct cells regarding gene expression of selected sweat gland-related markers. When combined with primary coil cells in a hanging drop co-culture, those transduced duct-derived cells showed some duct cell-like features. Further, a certain degree of cellular communication and a specific reaction towards substance application was observed. CONCLUSION Generated and herein described cell line derived from isolated human eccrine sweat gland duct cells is, based on the presented scientific findings, considered as immortal. Besides, this cell line shows some similarity with primary duct cells, although alterations from native glands were detected, among which is loss of expression of CFTR. Provided some further investigations, presented SV40T-transduced duct-cell derived cell line seems a suited surrogate of primary eccrine duct cells.
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Affiliation(s)
| | | | | | - Holger Stark
- ²Department of Pharmacy, Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University, Düsseldorf, Germany
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23
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Autophagy, not apoptosis, plays a role in lumen formation of eccrine gland organoids. Chin Med J (Engl) 2022; 135:324-332. [PMID: 35108227 PMCID: PMC8812595 DOI: 10.1097/cm9.0000000000001936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background: Sweat secreted by eccrine sweat glands is transported to the skin surface through the lumen. The eccrine sweat gland develops from the initial solid bud to the final gland structure with a lumen, but how the lumen is formed and the mechanism of lumen formation have not yet been fully elucidated. This study aimed to investigate the mechanism of lumen formation of eccrine gland organoids (EGOs). Methods: Human eccrine sweat glands were isolated from the skin for tissue culture, and the primary cultured cells were collected and cultured in Matrigel for 14 days in vitro. EGOs at different development days were collected for hematoxylin and eosin (H&E) staining to observe morphological changes and for immunofluorescence staining of proliferation marker Ki67, cellular motility marker filamentous actin (F-actin), and autophagy marker LC3B. Western blotting was used to detect the expression of Ki67, F-actin, and LC3B. Moreover, apoptosis was detected using a terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) apoptosis assay kit, and the expression of poly (ADP-ribose) polymerase and Caspase-3 was detected by Western blot. In addition, 3-methyladenine (3MA) was used as an autophagy inhibitor to detect whether the formation of sweat glands can be effectively inhibited. Results: The results showed that a single gland cell proliferated rapidly and formed EGOs on day 4. The earliest lumen formation was observed on day 6. From day 8 to day 14, the rate of lumen formation in EGOs increased significantly. The immunofluorescence and Western blot analyses showed that the expression of Ki67 gradually decreased with the increase in days, while the F-actin expression level did not change. Notably, the expression of autophagy marker LC3B was detected in the interior cells of EGOs as the apoptosis signal of EGOs was negative. Compared with the control group, the autophagy inhibitor 3MA can effectively limit the formation rate of the lumen and reduce the inner diameter of EGOs. Conclusion: Using our model of eccrine gland 3D-reconstruction in Matrigel, we determined that autophagy rather than apoptosis plays a role in the lumen formation of EGOs.
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24
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Yuan X, Duan X, Li Z, Yao B, Enhejirigala, Song W, Kong Y, Wang Y, Zhang F, Liang L, Zhu S, Zhang M, Zhang C, Huang S, Fu X. Collagen triple helix repeat containing-1 promotes functional recovery of sweat glands by inducing adjacent microvascular network reconstruction in vivo. BURNS & TRAUMA 2022; 10:tkac035. [PMID: 35937591 PMCID: PMC9346565 DOI: 10.1093/burnst/tkac035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/30/2022] [Accepted: 06/14/2022] [Indexed: 11/23/2022]
Abstract
Background Sweat glands (SGs) have low regenerative potential after severe burns or trauma and their regeneration or functional recovery still faces many obstacles. In practice, restoring SG function requires not only the structural integrity of the gland itself, but also its neighboring tissues, especially blood vessels. Collagen triple helix repeat containing-1 (CTHRC1) was first identified in vascular repair, and increasing reports showed a close correlation between cutaneous appendage specification, patterning and regeneration. The purpose of the present study was to clarify the role of CTHRC1 in SGs and their adjacent microvessels and find therapeutic strategies to restore SG function. Methods The SGs and their adjacent microvascular network of Cthrc1−/− mice were first investigated using sweat test, laser Doppler imaging, tissue clearing technique and transcriptome analysis. The effects of CTHRC1 on dermal microvascular endothelial cells (DMECs) were further explored with cell proliferation, DiI-labeled acetylated low-density lipoprotein uptake, tube formation and intercellular junction establishment assays. The effects of CTHRC1 on SG function restoration were finally confirmed by replenishing the protein into the paws of Cthrc1−/− mice. Results CTHRC1 is a key regulator of SG function in mice. At the tissue level, Cthrc1 deletion resulted in the disorder and reduction of the microvascular network around SGs. At the molecular level, the knockout of Cthrc1 reduced the expression of vascular development genes and functional proteins in the dermal tissues. Furthermore, CTHRC1 administration considerably enhanced SG function by inducing adjacent vascular network reconstruction. Conclusions CTHRC1 promotes the development, morphogenesis and function execution of SGs and their neighboring vasculature. Our study provides a novel target for the restoration or regeneration of SG function in vivo.
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Affiliation(s)
- Xingyu Yuan
- School of Medicine , Nankai University, 94 Wei Jin Road, Tianjin 300071, PR China
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
| | - Xianlan Duan
- School of Medicine , Nankai University, 94 Wei Jin Road, Tianjin 300071, PR China
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
| | - Zhao Li
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
| | - Bin Yao
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Academy of Medical Engineering and Translational Medicine, Tianjin University , 92 Weijin Road, Tianjin, 300072, PR China
| | - Enhejirigala
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- College of Graduate, Tianjin Medical University , Tianjin 300070, PR China
- Institute of Basic Medical Research, Inner Mongolia Medical University , Hohhot 010110, Inner Mongolia, PR China
| | - Wei Song
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
| | - Yi Kong
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
| | - Yuzhen Wang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Department of Burn and Plastic Surgery, Air Force Hospital of Chinese PLA Central Theater Command , Datong 037000, Shanxi, PR China
| | - Fanliang Zhang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
| | - Liting Liang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
| | - Shijun Zhu
- School of Medicine , Nankai University, 94 Wei Jin Road, Tianjin 300071, PR China
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
| | - Mengde Zhang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
| | - Chao Zhang
- School of Medicine , Nankai University, 94 Wei Jin Road, Tianjin 300071, PR China
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
| | - Sha Huang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
| | - Xiaobing Fu
- School of Medicine , Nankai University, 94 Wei Jin Road, Tianjin 300071, PR China
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital , 28 Fu Xing Road, Beijing 100853, PR China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Chinese PLA General Hospital and PLA Medical College , Repair and Regeneration, , 51 Fu Cheng Road, Beijing 100048, PR China
- Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051 , Beijing 100048, PR China
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25
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Song W, Yao B, Zhu D, Zhang Y, Li Z, Huang S, Fu X. 3D-bioprinted microenvironments for sweat gland regeneration. BURNS & TRAUMA 2022; 10:tkab044. [PMID: 35071651 PMCID: PMC8778592 DOI: 10.1093/burnst/tkab044] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/23/2021] [Accepted: 11/15/2021] [Indexed: 12/22/2022]
Abstract
The development of 3D bioprinting in recent years has provided new insights into the creation of in vitro microenvironments for promoting stem cell-based regeneration. Sweat glands (SGs) are mainly responsible for thermoregulation and are a highly differentiated organ with limited regenerative ability. Recent studies have focused on stem cell-based therapies as strategies for repairing SGs after deep dermal injury. In this review, we highlight the recent trend in 3D bioprinted native-like microenvironments and emphasize recent advances in functional SG regeneration using this technology. Furthermore, we discuss five possible regulatory mechanisms in terms of biochemical factors and structural and mechanical cues from 3D bioprinted microenvironments, as well as the most promising regulation from neighbor cells and the vascular microenvironment.
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Affiliation(s)
- Wei Song
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, 51 Fu Cheng Road, Beijing 100048, P. R. China
| | - Bin Yao
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, 51 Fu Cheng Road, Beijing 100048, P. R. China
- Department of Cardiac Surgery, and Department of Medical Sciences, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China
| | - Dongzhen Zhu
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
| | - Yijie Zhang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
| | - Zhao Li
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, 51 Fu Cheng Road, Beijing 100048, P. R. China
| | - Sha Huang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, 51 Fu Cheng Road, Beijing 100048, P. R. China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College, 28 Fu Xing Road, Beijing 100853, P. R. China
- PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, 51 Fu Cheng Road, Beijing 100048, P. R. China
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26
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Abstract
Fluid secretion by exocrine glandular organs is essential to the survival of mammals. Each glandular unit within the body is uniquely organized to carry out its own specific functions, with failure to establish these specialized structures resulting in impaired organ function. Here, we review glandular organs in terms of shared and divergent architecture. We first describe the structural organization of the diverse glandular secretory units (the end-pieces) and their fluid transporting systems (the ducts) within the mammalian system, focusing on how tissue architecture corresponds to functional output. We then highlight how defects in development of end-piece and ductal architecture impacts secretory function. Finally, we discuss how knowledge of exocrine gland structure-function relationships can be applied to the development of new diagnostics, regenerative approaches and tissue regeneration.
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Affiliation(s)
- Sameed Khan
- Department of Obstetrics Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI 48824, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Sarah Fitch
- Department of Obstetrics Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI 48824, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Sarah Knox
- Department of Cell and Tissue Biology, University of California, San Francisco, CA 94143, USA
| | - Ripla Arora
- Department of Obstetrics Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI 48824, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
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27
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Mutations of p53 gene in canine sweat gland carcinomas probably associated with UV radiation. J Vet Res 2021; 65:519-526. [PMID: 35112008 PMCID: PMC8775725 DOI: 10.2478/jvetres-2021-0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 12/09/2021] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction
Apocrine sweat gland carcinomas (ASGCs) are rare malignant skin tumours in dogs and humans. The literature published so far focuses mostly on the clinico-epidemiological aspect of these tumours, but little is known about their pathogenesis. In this study we aimed to determine whether the p53 gene is involved in the carcinogenesis of the apocrine sweat gland in dogs and whether ultraviolet radiation (UV) is related to it.
Material and Methods
Forty canine ASGCs were submitted to laser capture microdissection to isolate neoplastic cells, from which DNA was subsequently extracted. PCR amplification and sequencing of p53 exons 2–8 was then performed, followed by computer analysis of the obtained sequences.
Results
Sixteen mutations within the p53 gene were found in 13 tumours. The mutations involved C → T, T → C, G → A, and CC → TT transitions, C → G transversion and adenine deletion, which are gene alteration types known to be related to UV radiation in the process of skin carcinogenesis in humans. Six of the thirteen tumour cases displayed the C → T transitions in the same location in exon 4 and three of the thirteen cases displayed T → C in the same location in exon 5.
Conclusion
The results of the present study indicate both the participation of the p53 gene and the influence of UV radiation in the formation of ASGCs in dogs.
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28
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Kosumi H, Watanabe M, Shinkuma S, Nohara T, Fujimura Y, Tsukiyama T, Donati G, Iwata H, Nakamura H, Ujiie H, Natsuga K. Wnt/β-Catenin Signaling Stabilizes Hemidesmosomes in Keratinocytes. J Invest Dermatol 2021; 142:1576-1586.e2. [PMID: 34742703 DOI: 10.1016/j.jid.2021.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/16/2021] [Accepted: 10/24/2021] [Indexed: 12/24/2022]
Abstract
Hemidesmosomes (HDs) are adhesion complexes that promote epithelial-stromal attachment in stratified and complex epithelia, including the epidermis. In various biological processes, such as differentiation and migration of epidermal keratinocytes during wound healing or carcinoma invasion, quick assembly and disassembly of HDs are prerequisites. In this study, we show that inhibition of Wnt/β-catenin signaling disturbs HD organization in keratinocytes. Screening with inhibitors identified the depletion of HD components and HD-like structures through Wnt inhibition, but keratinocyte differentiation was not affected. Wnt inhibition significantly diminished plectin and type XVII collagen expression in the basal side of Wnt-inhibited cells and the dermo-epidermal junction of the Wnt-inactive murine basal epidermis. Similar to Wnt inhibition, PLEC-knockout cells or cells with plectin-type XVII collagen binding defects showed type XVII collagen reduction in the basal side of the cells, implying the possible involvement of Wnt/β-catenin signaling in HD assembly. Atypical protein kinase C inhibition ameliorated the phenotypes of Wnt-inhibited cells. These findings show that Wnt/β-catenin signaling regulates the localization of HD components in keratinocytes and that the atypical protein kinase C pathway is involved in Wnt inhibition‒induced HD disarrangement. Our study suggests that the Wnt signaling pathway could be a potential therapeutic target for treating HD-defective diseases, such as epidermolysis bullosa.
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Affiliation(s)
- Hideyuki Kosumi
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Mika Watanabe
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy; Molecular Biotechnology Centre, University of Turin, Turin, Italy
| | - Satoru Shinkuma
- Department of Dermatology, Nara Medical University School of Medicine, Kashihara, Japan
| | - Takuma Nohara
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yu Fujimura
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tadasuke Tsukiyama
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Giacomo Donati
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy; Molecular Biotechnology Centre, University of Turin, Turin, Italy
| | - Hiroaki Iwata
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hideki Nakamura
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hideyuki Ujiie
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ken Natsuga
- Department of Dermatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
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Phelan HA, Holmes Iv JH, Hickerson WL, Cockerell CJ, Shupp JW, Carter JE. Use of 816 consecutive burn wound biopsies to inform a histologic algorithm for burn depth categorization. J Burn Care Res 2021; 42:1162-1167. [PMID: 34387313 DOI: 10.1093/jbcr/irab158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Burn experts are only 77% accurate when subjectively assessing burn depth, leaving almost a quarter of patients to undergo unnecessary surgery or conversely suffer a delay in treatment. To aid clinicians in burn depth assessment (BDA), new technologies are being studied with machine learning algorithms calibrated to histologic standards. Our group has iteratively created a theoretical burn biopsy algorithm (BBA) based on histologic analysis, and subsequently informed it with the largest burn wound biopsy repository in the literature. Here, we sought to report that process. METHODS The was an IRB-approved, prospective, multicenter study. A BBA was created a priori and refined in an iterative manner. Patients with burn wounds assessed by burn experts as requiring excision and autograft underwent 4mm biopsies procured every 25cm 2. Serial still photos were obtained at enrollment and at excision intraoperatively. Burn biopsies were histologically assessed for presence/absence of epidermis, papillary dermis, reticular dermis, and proportion of necrotic adnexal structures by a dermatopathologist using H&E with whole slide scanning. First degree and superficial 2 nd degree were considered to be burn wounds likely to have healed without surgery, while deep 2 nd and 3 rd degree burns were considered unlikely to heal by 21 days. Biopsy pathology results were correlated with still photos by five burn experts for consensus of final burn depth diagnosis. RESULTS Sixty-six subjects were enrolled with 117 wounds and 816 biopsies. The BBA was used to categorize subjects' wounds into 4 categories: 7% of burns were categorized as 1 st degree, 13% as superficial 2 nd degree, 43% as deep 2 nd degree, and 37% as 3 rd degree. Therefore 20% of burn wounds were incorrectly judged as needing excision and grafting by the clinical team as per the BBA. As H&E is unable to assess the viability of papillary and reticular dermis, with time our team came to appreciate the greater importance of adnexal structure necrosis over dermal appearance in assessing healing potential. CONCLUSIONS Our study demonstrates that a BBA with objective histologic criteria can be used to categorize BDA with clinical misclassification rates consistent with past literature. This study serves as the largest analysis of burn biopsies by modern day burn experts and the first to define histologic parameters for BDA.
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Affiliation(s)
- Herb A Phelan
- LSUHSC-New Orleans, Department of Surgery, University Medical Center-New Orleans Burn Program, 2000 Canal Street, Tower 1, Floor 3, New Orleans, LA
| | - James H Holmes Iv
- LSUHSC-New Orleans, Department of Surgery, University Medical Center-New Orleans Burn Program, 2000 Canal Street, Tower 1, Floor 3, New Orleans, LA
| | - William L Hickerson
- LSUHSC-New Orleans, Department of Surgery, University Medical Center-New Orleans Burn Program, 2000 Canal Street, Tower 1, Floor 3, New Orleans, LA
| | - Clay J Cockerell
- LSUHSC-New Orleans, Department of Surgery, University Medical Center-New Orleans Burn Program, 2000 Canal Street, Tower 1, Floor 3, New Orleans, LA
| | - Jeffrey W Shupp
- LSUHSC-New Orleans, Department of Surgery, University Medical Center-New Orleans Burn Program, 2000 Canal Street, Tower 1, Floor 3, New Orleans, LA
| | - Jeffrey E Carter
- LSUHSC-New Orleans, Department of Surgery, University Medical Center-New Orleans Burn Program, 2000 Canal Street, Tower 1, Floor 3, New Orleans, LA
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30
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Bellu E, Medici S, Coradduzza D, Cruciani S, Amler E, Maioli M. Nanomaterials in Skin Regeneration and Rejuvenation. Int J Mol Sci 2021; 22:7095. [PMID: 34209468 PMCID: PMC8268279 DOI: 10.3390/ijms22137095] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/18/2021] [Accepted: 06/28/2021] [Indexed: 12/11/2022] Open
Abstract
Skin is the external part of the human body; thus, it is exposed to outer stimuli leading to injuries and damage, due to being the tissue mostly affected by wounds and aging that compromise its protective function. The recent extension of the average lifespan raises the interest in products capable of counteracting skin related health conditions. However, the skin barrier is not easy to permeate and could be influenced by different factors. In the last decades an innovative pharmacotherapeutic approach has been possible thanks to the advent of nanomedicine. Nanodevices can represent an appropriate formulation to enhance the passive penetration, modulate drug solubility and increase the thermodynamic activity of drugs. Here, we summarize the recent nanotechnological approaches to maintain and replace skin homeostasis, with particular attention to nanomaterials applications on wound healing, regeneration and rejuvenation of skin tissue. The different nanomaterials as nanofibers, hydrogels, nanosuspensions, and nanoparticles are described and in particular we highlight their main chemical features that are useful in drug delivery and tissue regeneration.
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Affiliation(s)
- Emanuela Bellu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
| | - Serenella Medici
- Department of Chemistry and Pharmacy, University of Sassari, Vienna 2, 07100 Sassari, Italy;
| | - Donatella Coradduzza
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
| | - Evzen Amler
- UCEEB, Czech Technical University, Trinecka 1024, 27343 Bustehrad, Czech Republic;
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (D.C.); (S.C.)
- Center for Developmental Biology and Reprogramming (CEDEBIOR), Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Interuniversity Consortium I.N.B.B., Viale delle Medaglie d’Oro, 305, 00136 Roma, Italy
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Zhang Y, Enhejirigala, Yao B, Li Z, Song W, Li J, Zhu D, Wang Y, Duan X, Yuan X, Huang S, Fu X. Using bioprinting and spheroid culture to create a skin model with sweat glands and hair follicles. BURNS & TRAUMA 2021; 9:tkab013. [PMID: 34213515 PMCID: PMC8240535 DOI: 10.1093/burnst/tkab013] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/09/2021] [Indexed: 12/22/2022]
Abstract
Background Sweat glands (SGs) and hair follicles (HFs) are two important cutaneous appendages that play crucial roles in homeostatic maintenance and thermoregulation, and their interaction is involved in wound healing. SGs can be regenerated from mesenchymal stem cell-laden 3D bioprinted scaffolds, based on our previous studies, whereas regeneration of HFs could not be achieved in the same model. Due to the lack of an in vitro model, the underlying molecular mechanism of the interaction between SGs and HFs in regeneration could not be fully understood. The purpose of the present study was to establish an in vitro model of skin constructs with SGs and HFs and explore the interaction between these two appendages in regeneration. Methods To investigate the interaction effects between SGs and HFs during their regeneration processes, a combined model was created by seeding HF spheroids on 3D printed SG scaffolds. The interaction between SG scaffolds and HF spheroids was detected using RNA expression and immunofluorescence staining. The effects of microenvironmental cues on SG and HF regeneration were analysed by altering seed cell types and plantar dermis homogenate in the scaffold. Results According to this model, we overcame the difficulties in simultaneously inducing SG and HF regeneration and explored the interaction effects between SG scaffolds and HF spheroids. Surprisingly, HF spheroids promoted both SG and HF differentiation in SG scaffolds, while SG scaffolds promoted SG differentiation but had little effect on HF potency in HF spheroids. Specifically, microenvironmental factors (plantar dermis homogenate) in SG scaffolds effectively promoted SG and HF genesis in HF spheroids, no matter what the seed cell type in SG scaffolds was, and the promotion effects were persistent. Conclusions Our approach elucidated a new model for SG and HF formation in vitro and provided an applicable platform to investigate the interaction between SGs and HFs in vitro. This platform might facilitate 3D skin constructs with multiple appendages and unveil the spatiotemporal molecular program of multiple appendage regeneration.
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Affiliation(s)
- Yijie Zhang
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China
| | - Enhejirigala
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,College of Graduate, Tianjin Medical University, Tianjin 300070, China.,Institute of Basic Medical Research, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia, China
| | - Bin Yao
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, Guangdong, China
| | - Zhao Li
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China
| | - Wei Song
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China
| | - Jianjun Li
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,Department of General Surgery, the Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
| | - Dongzhen Zhu
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China
| | - Yuzhen Wang
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,Department of Burn and Plastic Surgery, Air Force Hospital of Chinese PLA Central Theater Command, Datong 037000, Shanxi, China
| | - Xianlan Duan
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Xingyu Yuan
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Sha Huang
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration, Medical Innovation Research Department and the Fourth Medical Center, Chinese PLA General Hospital and PLA Medical College, Beijing 100048, China.,PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, Chinese PLA General Hospital and PLA Medical College, Beijing 100853, China.,Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing 100048, China
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He M, Zhou T, Niu Y, Feng W, Gu X, Xu W, Zhang S, Wang Z, Zhang Y, Wang C, Dong L, Liu M, Dong N, Wu Q. The protease corin regulates electrolyte homeostasis in eccrine sweat glands. PLoS Biol 2021; 19:e3001090. [PMID: 33591965 PMCID: PMC7909636 DOI: 10.1371/journal.pbio.3001090] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 02/26/2021] [Accepted: 01/04/2021] [Indexed: 01/02/2023] Open
Abstract
Sweating is a basic skin function in body temperature control. In sweat glands, salt excretion and reabsorption are regulated to avoid electrolyte imbalance. To date, the mechanism underlying such regulation is not fully understood. Corin is a transmembrane protease that activates atrial natriuretic peptide (ANP), a cardiac hormone essential for normal blood volume and pressure. Here, we report an unexpected role of corin in sweat glands to promote sweat and salt excretion in regulating electrolyte homeostasis. In human and mouse eccrine sweat glands, corin and ANP are expressed in the luminal epithelial cells. In corin-deficient mice on normal- and high-salt diets, sweat and salt excretion is reduced. This phenotype is associated with enhanced epithelial sodium channel (ENaC) activity that mediates Na+ and water reabsorption. Treatment of amiloride, an ENaC inhibitor, normalizes sweat and salt excretion in corin-deficient mice. Moreover, treatment of aldosterone decreases sweat and salt excretion in wild-type (WT), but not corin-deficient, mice. These results reveal an important regulatory function of corin in eccrine sweat glands to promote sweat and salt excretion.
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Affiliation(s)
- Meiling He
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
- Department of Nephrology, the People’s Hospital of Suzhou New District, Suzhou, China
| | - Tiantian Zhou
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Yayan Niu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
- MOH Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wansheng Feng
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Xiabing Gu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
- MOH Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wenting Xu
- International Peace Maternity and Child Health Hospital of China Welfare Institute, Shanghai, China
| | - Shengnan Zhang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
- MOH Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhiting Wang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Yue Zhang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Can Wang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Liang Dong
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Meng Liu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Ningzheng Dong
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
- MOH Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qingyu Wu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, the First Affiliated Hospital, Soochow University, Suzhou, China
- Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, United States of America
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Dunstan RW, Salte KM, Todorović V, Lowe M, Wetter JB, Harms PW, Burney RE, Scott VE, Smith KM, Rosenblum MD, Gudjonsson JE, Honore P. Histologic progression of acne inversa/hidradenitis suppurativa: Implications for future investigations and therapeutic intervention. Exp Dermatol 2021; 30:820-830. [PMID: 33377546 PMCID: PMC8247901 DOI: 10.1111/exd.14273] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/03/2020] [Accepted: 12/18/2020] [Indexed: 02/06/2023]
Abstract
Since first recognized in 1839, the pathogenesis of acne inversa (AI) has undergone repeated revisions. Although there is agreement that AI involves occlusion of hair follicles with subsequent inflammation and the formation of tracts, the histologic progression of this disease still requires refinement. The objective of this study was to examine the histologic progression of AI based on the examination of a large cohort of punch biopsies and excisional samples that were examined first by hematoxylin and eosin staining. The most informative of these samples were step‐sectioned and stained by immunohistochemistry for epithelial and inflammatory markers. Based on this examination, the following observations were made: 1) AI arises from the epithelium of the infundibulum of terminal and vellus hairs; 2) These form cysts and epithelial tendrils that extend into soft tissue; 3) Immunohistochemical staining demonstrates the epithelium of AI is disordered with infundibular and isthmic differentiation and de novo expression of stem cell markers; 4) The inflammatory response in AI is heterogeneous and largely due to cyst rupture. The conclusions of this investigation were that AI is an epithelial‐driven disease caused by infiltrative, cyst forming tendrils and most of the inflammation is due to cyst rupture and release of cornified debris and bacteria. Cyst rupture often occurs below the depths of punch biopsy samples indicating their use for analysis may give an incomplete picture of the disease. Finally, our data suggest that unless therapies inhibit tendril development, it is unlikely they will cause prolonged treatment‐induced remission in AI.
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Affiliation(s)
| | | | | | - Margaret Lowe
- Department of Dermatology, University of California, San Francisco, CA, USA
| | | | - Paul W Harms
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Richard E Burney
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
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Liu Y, Li J, Yao B, Wang Y, Wang R, Yang S, Li Z, Zhang Y, Huang S, Fu X. The stiffness of hydrogel-based bioink impacts mesenchymal stem cells differentiation toward sweat glands in 3D-bioprinted matrix. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111387. [DOI: 10.1016/j.msec.2020.111387] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/08/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023]
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35
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Welzel J, Grüdl S, Welss T, Claas M, Sättler A, Förster T, Banowski B. Quantitative ion determination in eccrine sweat gland cells correlates to sweat reduction of antiperspirant actives. Int J Cosmet Sci 2021; 43:181-190. [PMID: 33259130 DOI: 10.1111/ics.12679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/06/2020] [Accepted: 11/25/2020] [Indexed: 01/30/2023]
Abstract
OBJECTIVE Axillary wetness represents an unwanted effect of the physiologically vital sweating mechanism, especially when it becomes excessive. Cosmetic products reducing sweat secretion rely on aluminium salts as the active ingredient acting by physically blocking the sweat gland. Driven by the interest to better understand the sweat mechanism and to develop alternative technologies against excessive sweating a search for an effective testing approach started as up to now, cost- and time-consuming in vivo studies represent the standard procedure for testing and identifying these alternatives. MATERIAL AND METHODS The herein described in vitro test system is based on the measurement of intracellular changes of the ion equilibrium in cultured eccrine sweat gland cells. Subsequently, in vivo studies on the back of volunteers were conducted to verify the sweat-reducing effect of in vitro newly discovered substance. RESULTS In this study, we describe an effective cell-based in vitro method as a potent tool for a more targeted screening of alternatives to aluminium salts. Testing the commonly used aluminium chlorohydrate as one example of an aluminium-based active in this screening procedure, we discovered a distinct influence on the ion equilibrium: Intracellular levels of sodium ions were decreased while those of chloride increased. Screening of various substances revealed a polyethyleneimine, adjusted to pH 3.5 with hydrochloric acid, to evoke the same alterations in the ion equilibrium as aluminium chlorohydrate. Subsequent in vivo studies showed its substantial antiperspirant action and confirmed the high efficiency of the polyethyleneimine solution in vivo. Further, specific investigations connecting the chloride content of the tested substances with the resulting sweat reduction pointed towards a substantial impact of the chloride ions on sweating. CONCLUSION The newly described in vitro cell-based screening method represents an effective means for identifying new antiperspirant actives and suggests an additional biological mechanism of action of sweat-reducing ingredients which is directed towards unbalancing of the ion equilibrium inside eccrine sweat gland cells.
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Affiliation(s)
- J Welzel
- Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - S Grüdl
- Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - T Welss
- Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - M Claas
- Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - A Sättler
- Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - T Förster
- Henkel AG & Co. KGaA, Düsseldorf, Germany
| | - B Banowski
- Henkel AG & Co. KGaA, Düsseldorf, Germany
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36
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Lin Y, Chen L, Zhang M, Xie S, Du L, Zhang X, Li H. Eccrine Sweat Gland and Its Regeneration: Current Status and Future Directions. Front Cell Dev Biol 2021; 9:667765. [PMID: 34395417 PMCID: PMC8355620 DOI: 10.3389/fcell.2021.667765] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 07/09/2021] [Indexed: 02/05/2023] Open
Abstract
Eccrine sweat glands (ESGs) play an important role in temperature regulation by secreting sweat. Insufficiency or dysfunction of ESGs in a hot environment or during exercise can lead to hyperthermia, heat exhaustion, heatstroke, and even death, but the ability of ESGs to repair and regenerate themselves is very weak and limited. Repairing the damaged ESGs and regenerating the lost or dysfunctional ESGs poses a challenge for dermatologists and bum surgeons. To promote and accelerate research on the repair and regeneration of ESGs, we summarized the development, structure and function of ESGs, and current strategies to repair and regenerate ESGs based on stem cells, scaffolds, and possible signaling pathways involved.
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Affiliation(s)
- Yao Lin
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Liyun Chen
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Mingjun Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Sitian Xie
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Lijie Du
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiang Zhang
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Haihong Li
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
- Department of Wound Repair and Dermatologic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
- *Correspondence: Haihong Li,
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Weng T, Zhang W, Xia Y, Wu P, Yang M, Jin R, Xia S, Wang J, You C, Han C, Wang X. 3D bioprinting for skin tissue engineering: Current status and perspectives. J Tissue Eng 2021; 12:20417314211028574. [PMID: 34345398 PMCID: PMC8283073 DOI: 10.1177/20417314211028574] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/10/2021] [Indexed: 12/25/2022] Open
Abstract
Skin and skin appendages are vulnerable to injury, requiring rapidly reliable regeneration methods. In recent years, 3D bioprinting has shown potential for wound repair and regeneration. 3D bioprinting can be customized for skin shape with cells and other materials distributed precisely, achieving rapid and reliable production of bionic skin substitutes, therefore, meeting clinical and industrial requirements. Additionally, it has excellent performance with high resolution, flexibility, reproducibility, and high throughput, showing great potential for the fabrication of tissue-engineered skin. This review introduces the common techniques of 3D bioprinting and their application in skin tissue engineering, focusing on the latest research progress in skin appendages (hair follicles and sweat glands) and vascularization, and summarizes current challenges and future development of 3D skin printing.
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Affiliation(s)
- Tingting Weng
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Zhang
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Yilan Xia
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Pan Wu
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Min Yang
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Ronghua Jin
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Sizhan Xia
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Jialiang Wang
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Chuangang You
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Chunmao Han
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
| | - Xingang Wang
- Department of Burns & Wound Care Centre, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Trauma and Burns of Zhejiang University, Hangzhou, Zhejiang, China
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Chitosan and gelatin biopolymer supplemented with mesenchymal stem cells (Velgraft®) enhanced wound healing in goats (Capra hircus): Involvement of VEGF, TGF and CD31. J Tissue Viability 2020; 30:59-66. [PMID: 33386237 DOI: 10.1016/j.jtv.2020.12.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/18/2020] [Accepted: 12/16/2020] [Indexed: 11/20/2022]
Abstract
AIM Cell-based therapy has emerged as promising strategy for chronic and impaired wounds treatment. Current research is focused on developing biomaterial systems that act as a niche for mesenchymal stem cells (MSCs) to promote wound healing through paracrine molecular cascading. This study was aimed to evaluate the wound healing potential of Velgraft, a ready-to-use biodegradable artificial skin substitute, on excision wound in goats. MATERIALS AND METHODS Twelve male goats were randomized divided in to three groups of four animals each. After infliction of surgical wound, Velgraft and Soframycin were applied on wounds of the animals of Groups II and III while Group I (sham operated) served as control. Wound diameters were measured at pre-defined time-points for determination of progressive wound healing up to 28 days. Skin sections were stained using Hematoxylin and eosin (H&E) for examining the histoarchitectural changes, Masson trichome staining for ascertaining collagen synthesis and immunohistochemistry for expression of CD31, VEGF and TGF-β1 proteins to determine post-treatment angiogenesis in the inflicted wounds. RESULTS Velgraft application appreciably enhanced wound closure by day 21 which was confirmed through restoration of the normal skin architecture as evident based on histopathological examination and characterized by complete regeneration of epidermal layers, collagen fibers, blood capillaries and hair follicular formation. Stimulation of angiogenesis markers was also observed at different time-points post-Velgraft application; which is suggestive of the improved angiogenesis and vasculogenesis. CONCLUSION Velgraft facilitates wound healing by augmenting early wound closure, enhancing collagen synthesis and deposition, trichosis development and promoting revascularization and epidermal layers restoration.
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Guan Y, Yang YJ, Nagarajan P, Ge Y. Transcriptional and signalling regulation of skin epithelial stem cells in homeostasis, wounds and cancer. Exp Dermatol 2020; 30:529-545. [PMID: 33249665 DOI: 10.1111/exd.14247] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/10/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023]
Abstract
The epidermis and skin appendages are maintained by their resident epithelial stem cells, which undergo long-term self-renewal and multilineage differentiation. Upon injury, stem cells are activated to mediate re-epithelialization and restore tissue function. During this process, they often mount lineage plasticity and expand their fates in response to damage signals. Stem cell function is tightly controlled by transcription machineries and signalling transductions, many of which derail in degenerative, inflammatory and malignant dermatologic diseases. Here, by describing both well-characterized and newly emerged pathways, we discuss the transcriptional and signalling mechanisms governing skin epithelial homeostasis, wound repair and squamous cancer. Throughout, we highlight common themes underscoring epithelial stem cell plasticity and tissue-level crosstalk in the context of skin physiology and pathology.
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Affiliation(s)
- Yinglu Guan
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Youn Joo Yang
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Priyadharsini Nagarajan
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yejing Ge
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Bellu E, Garroni G, Cruciani S, Balzano F, Serra D, Satta R, Montesu MA, Fadda A, Mulas M, Sarais G, Bandiera P, Torreggiani E, Martini F, Tognon M, Ventura C, Beznoska J, Amler E, Maioli M. Smart Nanofibers with Natural Extracts Prevent Senescence Patterning in a Dynamic Cell Culture Model of Human Skin. Cells 2020; 9:cells9122530. [PMID: 33255167 PMCID: PMC7760051 DOI: 10.3390/cells9122530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/19/2020] [Indexed: 12/16/2022] Open
Abstract
Natural cosmetic products have recently re-emerged as a novel tool able to counteract skin aging and skin related damages. In addition, recently achieved progress in nanomedicine opens a novel approach yielding from combination of modern nanotechnology with traditional treatment for innovative pharmacotherapeutics. In the present study, we investigated the antiaging effect of a pretreatment with Myrtus communis natural extract combined with a polycaprolactone nanofibrous scaffold (NanoPCL-M) on skin cell populations exposed to UV. We set up a novel model of skin on a bioreactor mimicking a crosstalk between keratinocytes, stem cells and fibroblasts, as in skin. Beta-galactosidase assay, indicating the amount of senescent cells, and viability assay, revealed that fibroblasts and stem cells pretreated with NanoPCL-M and then exposed to UV are superimposable to control cells, untreated and unexposed to UV damage. On the other hand, cells only exposed to UV stress, without NanoPCL-M pretreatment, exhibited a significantly higher yield of senescent elements. Keratinocyte-based 3D structures appeared disjointed after UV-stress, as compared to NanoPCL-M pretreated samples. Gene expression analysis performed on different senescence associated genes, revealed the activation of a molecular program of rejuvenation in stem cells pretreated with NanoPCL-M and then exposed to UV. Altogether, our results highlight a future translational application of NanoPCL-M to prevent skin aging.
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Affiliation(s)
- Emanuela Bellu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Giuseppe Garroni
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Francesca Balzano
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Diletta Serra
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Rosanna Satta
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Maria Antonia Montesu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (R.S.); (M.A.M.)
| | - Angela Fadda
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Traversa la Crucca 3, 07100 Sassari, Italy;
| | - Maurizio Mulas
- Department of Agriculture, University of Sassari, Via De Nicola 9, 07100 Sassari, Italy;
| | - Giorgia Sarais
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy;
| | - Pasquale Bandiera
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
| | - Elena Torreggiani
- Department Medical Sciences, Section Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.T.); (F.M.); (M.T.)
| | - Fernanda Martini
- Department Medical Sciences, Section Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.T.); (F.M.); (M.T.)
| | - Mauro Tognon
- Department Medical Sciences, Section Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy; (E.T.); (F.M.); (M.T.)
| | - Carlo Ventura
- Laboratory of Molecular Biology and Stem Cell Engineering-Eldor Lab, National Institute of Biostructures and Biosystems, Innovation Accelerator, CNR, Via Piero Gobetti 101, 40129 Bologna, Italy;
| | - Jiří Beznoska
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic;
| | - Evzen Amler
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University, V Uvalu 84, 150 06 Prague 5, Czech Republic;
- UCEEB, Czech Technical University, Trinecka 1024, 273 43 Bustehrad, Czech Republic
- Correspondence: (E.A.); (M.M.); Tel.: +420-608-979-660 (E.A.); +39-0792-28277 (M.M.)
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (E.B.); (G.G.); (S.C.); (F.B.); (D.S.); (P.B.)
- Center for Developmental Biology and Reprogramming-CEDEBIOR, Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), 09042 Monserrato, Italy
- Correspondence: (E.A.); (M.M.); Tel.: +420-608-979-660 (E.A.); +39-0792-28277 (M.M.)
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Xiao Y, Kronenfeld JM, Renquist BJ. Feed intake-dependent and -independent effects of heat stress on lactation and mammary gland development. J Dairy Sci 2020; 103:12003-12014. [PMID: 33041042 DOI: 10.3168/jds.2020-18675] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/19/2020] [Indexed: 11/19/2022]
Abstract
With a growing population, a reliable food supply is increasingly important. Heat stress reduces livestock meat and milk production. Genetic selection of high-producing animals increases endogenous heat production, while climate change increases exogenous heat exposure. Both sources of heat exacerbate the risk of heat-induced depression of production. Rodents are valuable models to understand mechanisms conserved across species. Heat exposure suppresses feed intake across homeothermic species including rodents and production animal species. We assessed the response to early-mid lactation or late-gestation heat exposure on milk production and mammary gland development/function, respectively. Using pair-fed controls we experimentally isolated the feed intake-dependent and -independent effects of heat stress on mammary function and mass. Heat exposure (35°C, relative humidity 50%) decreased daily feed intake. When heat exposure occurred during lactation, hypophagia accounted for approximately 50% of the heat stress-induced hypogalactia. Heat exposure during middle to late gestation suppressed feed intake, which was fully responsible for the lowered mammary gland weight of dams at parturition. However, the impaired mammary gland function in heat-exposed dams measured by metabolic rate and lactogenesis could not be explained by depressed feed consumption. In conclusion, mice recapitulate the depressed milk production and mammary gland development observed in dairy species while providing insight regarding the role of feed intake. This opens the potential to apply genetic, experimental, and pharmacological models unique to mice to identify the mechanism by which heat is limiting animal production.
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Affiliation(s)
- Yao Xiao
- School of Animal and Comparative Biomedical Science, University of Arizona, Tucson 85721; Department of Animal Sciences, University of Florida, Gainesville 32611
| | - Jason M Kronenfeld
- School of Animal and Comparative Biomedical Science, University of Arizona, Tucson 85721
| | - Benjamin J Renquist
- School of Animal and Comparative Biomedical Science, University of Arizona, Tucson 85721.
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Brasier N, Widmer A, Osthoff M, Mutke M, De Ieso F, Brasier-Lutz P, Wolfe L, Aithal V, Broeckling CD, Prenni J, Eckstein J. Non-invasive Drug Monitoring of β-Lactam Antibiotics Using Sweat Analysis-A Pilot Study. Front Med (Lausanne) 2020; 7:476. [PMID: 32984371 PMCID: PMC7477313 DOI: 10.3389/fmed.2020.00476] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 07/14/2020] [Indexed: 11/26/2022] Open
Abstract
Background: Antimicrobial resistance is a major challenge in treating infectious diseases. Therapeutic drug monitoring (TDM) can optimize and personalize antibiotic treatment. Previously, antibiotic concentrations in tissues were extrapolated from skin blister studies, but sweat analyses for TDM have not been conducted. Objective: To investigate the potential of sweat analysis as a non-invasive, rapid, and potential bedside TDM method. Methods: We analyzed sweat and blood samples from 13 in-house patients treated with intravenous cefepime, imipenem, or flucloxacillin. For cefepime treatment, full pharmacokinetic sampling was performed (five subsequent sweat samples every 2 h) using ultra-high-performance liquid chromatography coupled with triple quadrupole mass spectrometry. The ClinicalTrials.gov registration number is NCT03678142. Results: In this study, we demonstrated for the first time that flucloxacillin, imipenem, and cefepime are detectable in sweat. Antibiotic concentration changes over time demonstrated comparable (age-adjusted) dynamics in the blood and sweat of patients treated with cefepime. Patients treated with standard flucloxacillin dosage showed the highest mean antibiotic concentration in sweat. Conclusions: Our results provide a proof-of-concept that sweat analysis could potentially serve as a non-invasive, rapid, and reliable method to measure antibiotic concentration and as a surrogate marker for tissue penetration. If combined with smart biosensors, sweat analysis may potentially serve as the first lab-independent, non-invasive antibiotic TDM method.
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Affiliation(s)
- Noé Brasier
- CMIO Research Group, University Hospital Basel, Basel, Switzerland
- Department of Internal Medicine, Kantonsspital Obwalden, Sarnen, Switzerland
| | - Andreas Widmer
- Department of Infectious Disease and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Michael Osthoff
- Department of Internal Medicine, University Hospital Basel, Basel, Switzerland
| | - Markus Mutke
- CMIO Research Group, University Hospital Basel, Basel, Switzerland
- Department of Internal Medicine, University Hospital Basel, Basel, Switzerland
| | - Fiorangelo De Ieso
- CMIO Research Group, University Hospital Basel, Basel, Switzerland
- Department of Internal Medicine, University Hospital Basel, Basel, Switzerland
| | - Pascale Brasier-Lutz
- Department of Gynaecology, Standort Wolhusen Kantonsspital Luzern, Wolhusen, Switzerland
| | - Lisa Wolfe
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, United States
| | - Vikas Aithal
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, United States
| | - Corey D. Broeckling
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, United States
| | - Jessica Prenni
- Department of Horticulture and Landscape, Colorado State University, Fort Collins, CO, United States
| | - Jens Eckstein
- CMIO Research Group, University Hospital Basel, Basel, Switzerland
- Department of Internal Medicine, University Hospital Basel, Basel, Switzerland
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43
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Sweat gland regeneration: Current strategies and future opportunities. Biomaterials 2020; 255:120201. [PMID: 32592872 DOI: 10.1016/j.biomaterials.2020.120201] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/21/2020] [Accepted: 06/09/2020] [Indexed: 12/13/2022]
Abstract
For patients with extensive skin defects, loss of sweat glands (SwGs) greatly decreases their quality of life. Indeed, difficulties in thermoregulation, ion reabsorption, and maintaining fluid balance might render them susceptible to hyperthermia, heatstroke, or even death. Despite extensive studies on the stem cell biology of the skin in recent years, in-situ regeneration of SwGs with both structural and functional fidelity is still challenging because of the limited regenerative capacity and cell fate control of resident progenitors. To overcome these challenges, one must consider both the intrinsic factors relevant to genetic and epigenetic regulation and cues from the cellular microenvironment. Here, we describe recent progress in molecular biology, developmental pathways, and cellular evolution associated with SwGdevelopment and maturation. This is followed by a summary of the current strategies used for cell-fate modulation, transmembrane drug delivery, and scaffold design associated with SwGregeneration. Finally, we offer perspectives for creating more sophisticated systems to accelerate patients' innate healing capacity and developing engineered skin constructs to treat or replace damaged tissues structurally and functionally.
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44
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Di W, Clark HA. Optical Nanosensors for in vivo Physiological Chloride Detection for Monitoring Cystic Fibrosis Treatment. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:1441-1448. [PMID: 32226484 PMCID: PMC7100910 DOI: 10.1039/c9ay02717c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Personalized approaches for continuous monitoring of chloride levels are potentially valuable for evaluating the efficacy of new treatments of genetic disorders such as cystic fibrosis. In this report, we validated optode-based nanosensors for real-time chloride monitoring in the interstitial fluid of living animals. These nanosensors take advantage of a ratiometric sensing scheme which demonstrates reversible and selective chloride detection in the physiological range. We further investigate how skin pigmentation affects the sensor performance during in vivo fluorescence imaging. We successfully monitored endogenous chloride changes using nanosensors during pharmacological treatment in a cystic fibrosis mouse model. We believe this platform is a valuable tool for chloride detection which could assess the efficacy of new treatments for cystic fibrosis.
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Affiliation(s)
- Wenjun Di
- Department of Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts 02115, United States
| | - Heather A Clark
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
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45
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Serrano-Coll H, Ospina JP, Salazar-Peláez L, Cardona-Castro N. Notch Signaling Pathway Expression in the Skin of Leprosy Patients: Association With Skin and Neural Damage. Front Immunol 2020; 11:368. [PMID: 32265900 PMCID: PMC7096478 DOI: 10.3389/fimmu.2020.00368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/17/2020] [Indexed: 01/31/2023] Open
Abstract
Introduction: Leprosy is an infectious disease caused by Mycobacterium leprae, a debilitating disease that affects the skin and peripheral nerves. It is possible that tissue changes during infection with leprosy are related to alterations in the activity of the Notch signaling pathway, an innate signaling pathway in the physiology of the skin and peripheral nerves. Methods: This is a descriptive observational study. Thirty skin biopsies from leprosy patients and 15 from individuals with no history of this disease were evaluated. In these samples, gene expressions of cellular components associated with the Notch signaling pathway, Hes-1, Hey-1, Runx-1 Jagged-1, Notch-1, and Numb, were evaluated using q-PCR, and protein expression was evaluated using immunohistochemistry of Runx-1 and Hes-1. Results: Changes were observed in the transcription of Notch signaling pathway components; Hes-1 was downregulated and Runx-1 upregulated in the skin of infected patients. These results were confirmed by immunohistochemistry, where reduction of Hes-1 expression was found in the epidermis, eccrine glands, and hair follicles. Increased expression of Runx-1 was found in inflammatory cells in the dermis of infected patients; however, it is not related to tissue changes. With these results, a multivariate analysis was performed to determine the causes of transcription factor Hes-1 reduction. It was concluded that tissue inflammation was the main cause. Conclusions: The tissue changes found in the skin of infected patients could be associated with a reduction in the expression of Hes-1, a situation that would promote the survival and proliferation of M. leprae in this tissue.
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Affiliation(s)
- Héctor Serrano-Coll
- Grupo de Ciencias Básicas, Doctorado en Ciencias de la Salud, Escuela de Graduados, Universidad CES, Medellín, Colombia.,Línea de Investigación en Lepra, Instituto Colombiano de Medicina Tropical, Universidad CES, Medellín, Colombia
| | - Juan Pablo Ospina
- Laboratorio de Dermatopatología, Centro de Investigaciones en Dermatología (CIDERM), Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Lina Salazar-Peláez
- Grupo de Ciencias Básicas, Doctorado en Ciencias de la Salud, Escuela de Graduados, Universidad CES, Medellín, Colombia
| | - Nora Cardona-Castro
- Grupo de Ciencias Básicas, Doctorado en Ciencias de la Salud, Escuela de Graduados, Universidad CES, Medellín, Colombia.,Línea de Investigación en Lepra, Instituto Colombiano de Medicina Tropical, Universidad CES, Medellín, Colombia
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46
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Yao B, Wang R, Wang Y, Zhang Y, Hu T, Song W, Li Z, Huang S, Fu X. Biochemical and structural cues of 3D-printed matrix synergistically direct MSC differentiation for functional sweat gland regeneration. SCIENCE ADVANCES 2020; 6:eaaz1094. [PMID: 32181358 PMCID: PMC7056319 DOI: 10.1126/sciadv.aaz1094] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 12/10/2019] [Indexed: 05/10/2023]
Abstract
Mesenchymal stem cells (MSCs) encapsulation by three-dimensionally (3D) printed matrices were believed to provide a biomimetic microenvironment to drive differentiation into tissue-specific progeny, which made them a great therapeutic potential for regenerative medicine. Despite this potential, the underlying mechanisms of controlling cell fate in 3D microenvironments remained relatively unexplored. Here, we bioprinted a sweat gland (SG)-like matrix to direct the conversion of MSC into functional SGs and facilitated SGs recovery in mice. By extracellular matrix differential protein expression analysis, we identified that CTHRC1 was a critical biochemical regulator for SG specification. Our findings showed that Hmox1 could respond to the 3D structure activation and also be involved in MSC differentiation. Using inhibition and activation assay, CTHRC1 and Hmox1 synergistically boosted SG gene expression profile. Together, these findings indicated that biochemical and structural cues served as two critical impacts of 3D-printed matrix on MSC fate decision into the glandular lineage and functional SG recovery.
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Affiliation(s)
- Bin Yao
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Sciences, General Hospital of PLA, Beijing 100853, P. R. China
- Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, First Affiliated Hospital of PLA General Hospital, Beijing 100048, P.R. China
- The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Rui Wang
- Chinese PLA 306 Hospital, Beijing 100000, P.R. China
| | - Yihui Wang
- Handan People’s Hospital, Hebei 056000, P.R. China
| | - Yijie Zhang
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Sciences, General Hospital of PLA, Beijing 100853, P. R. China
| | - Tian Hu
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Sciences, General Hospital of PLA, Beijing 100853, P. R. China
- Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, First Affiliated Hospital of PLA General Hospital, Beijing 100048, P.R. China
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9DU, UK
| | - Wei Song
- Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, First Affiliated Hospital of PLA General Hospital, Beijing 100048, P.R. China
| | - Zhao Li
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Sciences, General Hospital of PLA, Beijing 100853, P. R. China
| | - Sha Huang
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Sciences, General Hospital of PLA, Beijing 100853, P. R. China
- Corresponding author. (S.H.); (X.F.)
| | - Xiaobing Fu
- Wound Healing and Cell Biology Laboratory, Institute of Basic Medical Sciences, General Hospital of PLA, Beijing 100853, P. R. China
- Key Laboratory of Tissue Repair and Regeneration of PLA and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration, First Affiliated Hospital of PLA General Hospital, Beijing 100048, P.R. China
- Corresponding author. (S.H.); (X.F.)
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Guan Y, Wang G, Fails D, Nagarajan P, Ge Y. Unraveling cancer lineage drivers in squamous cell carcinomas. Pharmacol Ther 2020; 206:107448. [PMID: 31836455 PMCID: PMC6995404 DOI: 10.1016/j.pharmthera.2019.107448] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/03/2019] [Indexed: 12/12/2022]
Abstract
Cancer hijacks embryonic development and adult wound repair mechanisms to fuel malignancy. Cancer frequently originates from de-regulated adult stem cells or progenitors, which are otherwise essential units for postnatal tissue remodeling and repair. Cancer genomics studies have revealed convergence of multiple cancers across organ sites, including squamous cell carcinomas (SCCs), a common group of cancers arising from the head and neck, esophagus, lung, cervix and skin. In this review, we summarize our current knowledge on the molecular drivers of SCCs, including these five major organ sites. We especially focus our discussion on lineage dependent driver genes and pathways, in the context of squamous development and stratification. We then use skin as a model to discuss the notion of field cancerization during SCC carcinogenesis, and cancer as a wound that never heals. Finally, we turn to the idea of context dependency widely observed in cancer driver genes, and outline literature support and possible explanations for their lineage specific functions. Through these discussions, we aim to provide an up-to-date summary of molecular mechanisms driving tumor plasticity in squamous cancers. Such basic knowledge will be helpful to inform the clinics for better stratifying cancer patients, revealing novel drug targets and providing effective treatment options.
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Affiliation(s)
- Yinglu Guan
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Guan Wang
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Danielle Fails
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Priyadharsini Nagarajan
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Yejing Ge
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA.
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Deniz AAH, Abdik EA, Abdik H, Aydın S, Şahin F, Taşlı PN. Zooming in across the Skin: A Macro-to-Molecular Panorama. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1247:157-200. [DOI: 10.1007/5584_2019_442] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Nauroy P, Nyström A. Kallikreins: Essential epidermal messengers for regulation of the skin microenvironment during homeostasis, repair and disease. Matrix Biol Plus 2019; 6-7:100019. [PMID: 33543017 PMCID: PMC7852331 DOI: 10.1016/j.mbplus.2019.100019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/08/2019] [Accepted: 11/14/2019] [Indexed: 12/14/2022] Open
Abstract
As the outermost layer of the skin, the epidermis is playing a major role in organism homeostasis providing the first barrier against external aggressions. Although considered as an extracellular matrix (ECM)-poor subtissue, the epidermal microenvironment is a key regulator of skin homeostasis and functionality. Among the proteins essential for upholding the epidermal microenvironment are the members of the kallikrein (KLK) family composed of 15 secreted serine proteases. Most of the members of these epithelial-specific proteins are present in skin and regulate skin desquamation and inflammation. However, although epidermal products, the consequences of KLK activities are not confined to the epidermis but widespread in the skin. In this review starting with the location and proteolytic activation cascade of KLKs, we present KLKs involvement in skin homeostasis, regeneration and pathology. KLKs have a large variety of substrates including ECM proteins, and evidence suggests that they are involved in the different steps of skin wound healing as discussed here. KLKs are also used as prognosis/diagnosis markers for many cancer types and we are focusing later on KLKs in cutaneous cancers, although their pathogenicity remains to be fully elucidated. Dysregulation of the KLK cascade is directly responsible for skin diseases with heavy inflammatory aspects, highlighting their involvement in skin immune homeostasis. Future studies will be needed to support the therapeutic potential of adjusting KLK activities for treatment of inflammatory skin diseases and wound healing pathologies. Regulation of the microenvironment even in an extracellular matrix-poor tissue can heavily impact organ function. Extracellular activities of kallikreins maintain skin homeostasis by regulating desquamation and inflammation. The activation of skin epidermal-specific kallikrein family of proteases is regulated by an intricate proteolytic cascade. Kallikreins are emerging as players during skin wound healing. Dysregulated kallikrein expression and activity occur in cancers and inflammatory skin diseases.
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Key Words
- AD, atopic dermatitis
- CDSN, corneodesmosin
- DSC1, desmocollin 1
- DSG1, desmoglein 1
- Diseases
- ECM, extracellular matrix
- EMT, epithelial-to-mesenchymal transition
- Epidermal microenvironment
- Epidermis
- Inflammation
- KLKs, kallikreins
- Kallikrein
- LEKTI, lympho-epithelial Kazal-type inhibitor
- NS, Netherton syndrome
- PAR1/2, protease activated-receptor 1/2
- SCC, squamous cell carcinoma
- Wound healing
- tPA, tissue plasminogen activator
- uPA, urokinase plasminogen activator
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Affiliation(s)
- Pauline Nauroy
- Department of Dermatology, Medical Center - University of Freiburg, Hauptstrasse 7, 79104 Freiburg, Germany
| | - Alexander Nyström
- Department of Dermatology, Medical Center - University of Freiburg, Hauptstrasse 7, 79104 Freiburg, Germany
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Li J, Wang J, Wang Z, Xia Y, Zhou M, Zhong A, Sun J. Experimental models for cutaneous hypertrophic scar research. Wound Repair Regen 2019; 28:126-144. [PMID: 31509318 DOI: 10.1111/wrr.12760] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 08/29/2019] [Accepted: 09/06/2019] [Indexed: 01/07/2023]
Abstract
Human skin wound repair may result in various outcomes with most of them leading to scar formation. Commonly seen in many cutaneous wound healing cases, hypertrophic scars are considered as phenotypes of abnormal wound repair. To prevent the formation of hypertrophic scars, efforts have been made to understand the mechanism of scarring following wound closure. Numerous in vivo and in vitro models have been created to facilitate investigations into cutaneous scarring and the development of antiscarring treatments. To select the best model for a specific study, background knowledge of the current models of hypertrophic scars is necessary. In this review, we describe in vivo and in vitro models for studying hypertrophic scars, as well as the distinct characteristics of these models. The choice of models for a specific study should be based on the characteristics of the model and the goal of the study. In general, in vivo animal models are often used in phenotypical scar formation analysis, development of antiscarring treatment, and functional analyses of individual genes. In contrast, in vitro models are chosen to pathway identification during scar formation as well as in high-throughput analysis in drug development. Besides helping investigators choose the best scarring model for their research, the goal of this review is to provide knowledge for improving the existing models and development of new models. These will contribute to the progress of scarring studies.
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Affiliation(s)
- Jialun Li
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Jiecong Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yun Xia
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Muran Zhou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Aimei Zhong
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
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