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Tang X, Wang J, Chen J, Liu W, Qiao P, Quan H, Li Z, Dang E, Wang G, Shao S. Epidermal stem cells: skin surveillance and clinical perspective. J Transl Med 2024; 22:779. [PMID: 39169334 PMCID: PMC11340167 DOI: 10.1186/s12967-024-05600-1] [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: 06/16/2024] [Accepted: 08/12/2024] [Indexed: 08/23/2024] Open
Abstract
The skin epidermis is continually influenced by a myriad of internal and external elements. At its basal layer reside epidermal stem cells, which fuels epidermal renovation and hair regeneration with powerful self-renewal ability, as well as keeping diverse signals that direct their activity under surveillance with quick response. The importance of epidermal stem cells in wound healing and immune-related skin conditions has been increasingly recognized, and their potential for clinical applications is attracting attention. In this review, we delve into recent advancements and the various physiological and psychological factors that govern distinct epidermal stem cell populations, including psychological stress, mechanical forces, chronic aging, and circadian rhythm, as well as providing an overview of current methodological approaches. Furthermore, we discuss the pathogenic role of epidermal stem cells in immune-related skin disorders and their potential clinical applications.
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Affiliation(s)
- Xin Tang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Jiaqi Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Jiaoling Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Wanting Liu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Pei Qiao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Huiyi Quan
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Zhiguo Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Erle Dang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China.
| | - Shuai Shao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shannxi, China.
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Dong Y, Zhang Y, Yu H, Zhou L, Zhang Y, Wang H, Hu Z, Luo S. Poly-l-lactic acid microspheres delay aging of epidermal stem cells in rat skin. Front Immunol 2024; 15:1394530. [PMID: 38881903 PMCID: PMC11177849 DOI: 10.3389/fimmu.2024.1394530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024] Open
Abstract
Objective Injectable skin fillers offer a wider range of options for cutaneous anti-aging and facial rejuvenation. PLLA microspheres are increasingly favored as degradable and long-lasting fillers. The present study focused solely on the effect of PLLA on dermal collagen, without investigating its impact on the epidermis. In this study, we investigated the effects of PLLA microspheres on epidermal stem cells (EpiSCs). Methods Different concentrations of PLLA microspheres on epidermal stem cells (EpiSCs) in vitro through culture, and identification of primary rat EpiSCs. CCK-8 detection, apoptosis staining, flow cytometry, Transwell assay, wound healing assay, q-PCR analysis, and immunofluorescence staining were used to detect the effects of PLLA on EpiSCs. Furthermore, we observed the effect on the epidermis by injecting PLLA into the dermis of the rat skin in vivo. Results PLLA microspheres promote cell proliferation and migration while delaying cell senescence and maintaining its stemness. In vitro, Intradermal injection of PLLA microspheres in the rat back skin resulted in delayed aging, as evidenced by histological and immunohistochemical staining of the skin at 2, 4, and 12 weeks of follow-up. Conclusion This study showed the positive effects of PLLA on rat epidermis and EpiSCs, while providing novel insights into the anti-aging mechanism of PLLA.
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Affiliation(s)
- Yunxian Dong
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Youliang Zhang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Hao Yu
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Lingcong Zhou
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Yaan Zhang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Haibin Wang
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Zhicheng Hu
- Department of Burns, Wound Repair and Reconstruction, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shengkang Luo
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
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Xu H, Yang H, Wang Z, Tang Q, Cao X, Chen C, Dong Y, Xu Z, Lv D, Rong Y, Chen M, Tang B, Deng W, Zhu J, Hu Z. Epidermal Stem Cell Derived Exosomes Alleviate Excessive Autophagy Induced Endothelial Cell Apoptosis by Delivering miR200b-3p to Diabetic Wounds. J Invest Dermatol 2024; 144:1134-1147.e2. [PMID: 37838331 DOI: 10.1016/j.jid.2023.08.030] [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: 12/02/2022] [Revised: 08/03/2023] [Accepted: 08/30/2023] [Indexed: 10/16/2023]
Abstract
The dysfunction of endothelial cells caused by hyperglycemia is observed as a decrease in neovascularization in diabetic wound healing. Studies have found that epidermal stem cells (EpiSCs) can promote the angiogenesis of full-thickness wounds. To further explain the therapeutic effect of EpiSCs, EpiSC-derived exosomes (EpiSC-EXOs) are considered the main substance contributing to stem cell effectivity. In our study, EpiSCs and EpiSC-EXOs were supplied to the dorsal wounds of db/db mice. Results showed that EpiSCs could colonize in the wound area and both EpiSCs and EpiSC-EXOs could accelerate diabetic wound healing by promoting angiogenesis. In vitro, persistent high glucose led to the malfunction and apoptosis of endothelial cells. The apoptosis induced by high glucose is due to excessive autophagy and was alleviated by EpiSC-EXOs. RNA sequencing of EpiSC-EXOs showed that miR200b-3p was enriched in EpiSC-EXOs and alleviated the apoptosis of endothelial cells. Synapse defective rho GTPase homolog 1 was identified the target of miR200b-3p and affected the phosphorylation of ERK to regulate intracellular autophagy and apoptosis. Furthermore, animal experiments validated the angiogenic effect of miR200b-3p. Collectively, our results verified the effect of EpiSC-EXOs on apoptosis caused by hyperglycemia in endothelial cells through the miR200b-3p/synapse defective rho GTPase homolog 1 /RAS/ERK/autophagy pathway, providing a theoretical basis for EpiSC in treating diabetic wounds.
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Affiliation(s)
- Hailin Xu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Hao Yang
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Zhiyong Wang
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Qizhi Tang
- Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Affiliated Nanhai Hospital of Traditional Chinese Medicine of Jinan University, Foshan, China
| | - Xiaoling Cao
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Chufen Chen
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Yunxian Dong
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Zhongye Xu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Dongming Lv
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Yanchao Rong
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Miao Chen
- Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Affiliated Nanhai Hospital of Traditional Chinese Medicine of Jinan University, Foshan, China
| | - Bing Tang
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Jiayuan Zhu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Zhicheng Hu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China.
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Shi H, Yuan X, Liu G, Fan W. Identifying and Validating GSTM5 as an Immunogenic Gene in Diabetic Foot Ulcer Using Bioinformatics and Machine Learning. J Inflamm Res 2023; 16:6241-6256. [PMID: 38145013 PMCID: PMC10748866 DOI: 10.2147/jir.s442388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/12/2023] [Indexed: 12/26/2023] Open
Abstract
Background A diabetic foot ulcer (DFU) is a serious, long-term condition associated with a significant risk of disability and mortality. However, research on its biomarkers is still limited. This study utilizes bioinformatics and machine learning methods to identify immune-related biomarkers for DFU and validates them through external datasets and animal experiments. Methods This study used bioinformatics and machine learning to analyze microarray data from the Gene Expression Omnibus (GEO) database to identify key genes associated with DFU. Animal experiments were conducted to validate these findings. This research employs the datasets GSE68183 and GSE80178 retrieved from the GEO database as the training dataset for building a gene machine learning model, and after conducting differential analysis on the data, this study used package glmnet and package e1071 to construct LASSO and SVM-RFE machine learning models, respectively. Subsequently, we validated the model using the training set and validation set (GSE134431). We conducted enrichment analysis, including GSEA and GSVA, on the model genes. We also performed immune functional analysis and immune-related analysis on the model genes. Finally, we conducted immunohistochemistry (IHC) validation on the model genes. Results This study identifies GSTM5 as a potential immune-related key target in DFU using machine learning and bioinformatics methods. Subsequent validation through external datasets and IHC experiments also confirms GSTM5 as a critical biomarker for DFU. The gene may be associated with T cells regulatory (Tregs) and T cells follicular helper, and it influences the NF-κB, GnRH, and MAPK signaling pathway. Conclusion This study identified and validated GSTM5 as a biomarker for DFU. This finding may potentially provide a target for immune therapy for DFU.
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Affiliation(s)
- Hongshuo Shi
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Xin Yuan
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Guobin Liu
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Weijing Fan
- Department of Peripheral Vascular Surgery, Institute of Surgery of Traditional Chinese Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
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Meshko B, Volatier TLA, Hadrian K, Deng S, Hou Y, Kluth MA, Ganss C, Frank MH, Frank NY, Ksander B, Cursiefen C, Notara M. ABCB5+ Limbal Epithelial Stem Cells Inhibit Developmental but Promote Inflammatory (Lymph) Angiogenesis While Preventing Corneal Inflammation. Cells 2023; 12:1731. [PMID: 37443766 PMCID: PMC10341195 DOI: 10.3390/cells12131731] [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: 05/20/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
The limbus, the vascularized junction between the cornea and conjunctiva, is thought to function as a barrier against corneal neovascularization. However, the exact mechanisms regulating this remain unknown. In this study, the limbal epithelial stem cell (LESC) marker ABCB5 was used to investigate the role of LESCs in corneal neovascularization. In an ABCB5KO model, a mild but significant increase of limbal lymphatic and blood vascular network complexity was observed in developing mice (4 weeks) but not in adult mice. Conversely, when using a cornea suture model, the WT animals exhibited a mild but significant increase in the number of lymphatic vessel sprouts compared to the ABCB5KO, suggesting a contextual anti-lymphangiogenic effect of ABCB5 on the limbal vasculature during development, but a pro-lymphangiogenic effect under inflammatory challenge in adulthood. In addition, conditioned media from ABCB5-positive cultured human limbal epithelial cells (ABCB5+) stimulated human blood and lymphatic endothelial cell proliferation and migration. Finally, a proteomic analysis demonstrated ABCB5+ cells have a pro(lymph)angiogenic as well as an anti-inflammatory profile. These data suggest a novel dual, context-dependent role of ABCB5+ LESCs, inhibiting developmental but promoting inflammatory (lymph)angiogenesis in adulthood and exerting anti-inflammatory effects. These findings are of high clinical relevance in relation to LESC therapy against blindness.
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Affiliation(s)
- Berbang Meshko
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
| | - Thomas L. A. Volatier
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
| | - Karina Hadrian
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
| | - Shuya Deng
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
| | - Yanhong Hou
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
| | - Mark Andreas Kluth
- TICEBA GmbH, Im Neuenheimer Feld 517, 69120 Heidelberg, Germany; (M.A.K.); (C.G.)
- RHEACELL GmbH & Co. KG, Im Neuenheimer Feld 517, 69120 Heidelberg, Germany
| | - Christoph Ganss
- TICEBA GmbH, Im Neuenheimer Feld 517, 69120 Heidelberg, Germany; (M.A.K.); (C.G.)
- RHEACELL GmbH & Co. KG, Im Neuenheimer Feld 517, 69120 Heidelberg, Germany
| | - Markus H. Frank
- Transplant Research Program, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Skin Disease Research Center, Department of Dermatology, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA;
- School of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia
| | - Natasha Y. Frank
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA;
- Department of Medicine, VA Boston Healthcare System, Boston, MA 02132, USA
- Division of Genetics, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Bruce Ksander
- Massachusetts Eye & Ear Infirmary, Schepens Eye Research Institute, Boston, MA 02114, USA;
| | - Claus Cursiefen
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
- Institute for Genome Stability in Ageing and Disease, CECAD Research Center, Joseph-Stelzmann-Str. 26, 50931 Cologne, Germany
| | - Maria Notara
- Department of Ophthalmology, University of Cologne, 50937 Cologne, Germany; (B.M.); (T.L.A.V.); (Y.H.)
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50937 Cologne, Germany
- Institute for Genome Stability in Ageing and Disease, CECAD Research Center, Joseph-Stelzmann-Str. 26, 50931 Cologne, Germany
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Wang Z, Xu H, Yang H, Zhang Y, Wang X, Wang P, Xu Z, Lv D, Rong Y, Dong Y, Tang B, Hu Z, Deng W, Zhu J. Single-stage transplantation combined with epidermal stem cells promotes the survival of tissue-engineered skin by inducing early angiogenesis. Stem Cell Res Ther 2023; 14:51. [PMID: 36959609 PMCID: PMC10035248 DOI: 10.1186/s13287-023-03281-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 03/13/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND The composite transplantation of a split-thickness skin graft (STSG) combined with an acellular dermal matrix (ADM) is a promising repair method for full-thickness skin defects. Due to delayed vascularization of the ADM, no currently available engineered skin tissue is able to permanently cover full-thickness skin defects via a single-stage procedure. Epidermal stem cells (EpSCs) have been found to promote angiogenesis in the wound bed. Whether EpSCs can induce early angiogenesis of dermal substitutes and promote the survival of single-stage tissue-engineered skin transplantation needs to be further studied. METHODS In vitro, rat vascular endothelial cells (RVECs) were treated with the supernatant of EpSCs cultured in ADM and stimulated for 48 h. RVECs were analysed by RNA sequencing and tube formation assays. For the in vivo experiment, 75 rats were randomly divided into five groups: ADM, ADM + EpSCs (AE), STSG, ADM + STSG (AS), and ADM + STSG + EpSCs (ASE) groups. The quality of wound healing was estimated by general observation and H&E and Masson staining. The blood perfusion volume was evaluated using the LDPI system, and the expression of vascular markers was determined by immunohistochemistry (IHC). RESULTS The active substances secreted by EpSCs cultured in ADM promoted angiogenesis, as shown by tube formation experiments and RNA-seq. EpSCs promoted epithelialization of the ADM and vascularization of the ADM implant. The ASE group showed significantly increased skin graft survival, reduced skin contraction, and an improved cosmetic appearance compared with the AS group and the STSG control group. CONCLUSIONS In summary, our findings suggest that EpSCs promote the formation of new blood vessels in dermal substitutes and support one-step transplantation of tissue-engineered skin, and thereby provide new ideas for clinical application.
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Affiliation(s)
- Zhiyong Wang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Hailin Xu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Hao Yang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yi Zhang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoyan Wang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Peng Wang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhongye Xu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Dongming Lv
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yanchao Rong
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yunxian Dong
- Department of Plastic Surgery, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China
| | - Bing Tang
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhicheng Hu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
| | - Wuguo Deng
- Collaborative Innovation Center of Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China.
| | - Jiayuan Zhu
- Department of Burn and Wound Repair Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
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Yang H, Xu H, Wang Z, Li X, Wang P, Cao X, Xu Z, Lv D, Rong Y, Chen M, Tang B, Hu Z, Deng W, Zhu J. Analysis of miR-203a-3p/SOCS3-mediated induction of M2 macrophage polarization to promote diabetic wound healing based on epidermal stem cell-derived exosomes. Diabetes Res Clin Pract 2023; 197:110573. [PMID: 36764461 DOI: 10.1016/j.diabres.2023.110573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/16/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND The development of therapeutic strategies to improve wound healing in individual diabetic patients remains challenging. Stem cell-derived exosomes represent a promising nanomaterial, and microRNAs (miRNAs) can be isolated from them. It is important to identify the potential therapeutic role of specific miRNAs, given that miRNAs can play a therapeutic role. METHODS qPCR, flow cytometry, and western blotting were used to verify the effect of epidermal stem cell-derived exosomes (EpiSC-EXOs) on M2 macrophage polarization and SOCS3 expression. By screening key miRNAs targeting SOCS3 in EpiSC-EXOs by high-throughput sequencing, we verified the mechanism in vitro. Finally, an animal model was used to verify the effect of promoting healing. RESULTS The use of EpiSC-EXOs reduced SOCS3 expression and promoted M2 macrophage polarization. The abundant miR-203a-3p present in the EpiSC-EXOs specifically bound to SOCS3 and activated the JAK2/STAT3 signaling pathway to induce M2 macrophage polarization. Treatment of the db/db mouse wound model with miR-203a-3p agomir exerted a pro-healing effect. CONCLUSIONS Our results demonstrated that the abundant miR-203a-3p present in EpiSC-EXOs can promote M2 macrophage polarization by downregulating SOCS3 and suggested that diabetic wounds can obtain better healing effects through this mechanism.
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Affiliation(s)
- Hao Yang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Hailin Xu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Zhiyong Wang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Xiaohui Li
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Peng Wang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Xiaoling Cao
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Zhongye Xu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Dongming Lv
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Yanchao Rong
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Miao Chen
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Bing Tang
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China
| | - Zhicheng Hu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China.
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China.
| | - Jiayuan Zhu
- First Affiliated Hospital of Sun Yat-sen University, Department of Burn and Wound Repair, Guangzhou, China.
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Wang J, Wang Y, Huang R, Li W, Fan W, Hu X, Yang X, Han Q, Wang H, Liu G. Uncovering the pharmacological mechanisms of Zizhu ointment against diabetic ulcer by integrating network analysis and experimental evaluation in vivo and in vitro. Front Pharmacol 2022; 13:1027677. [PMID: 36582537 PMCID: PMC9793990 DOI: 10.3389/fphar.2022.1027677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/25/2022] [Indexed: 12/15/2022] Open
Abstract
Diabetic ulcer (DU) has been recognized as one of the most prevalent and serious complications of diabetes. However, the clinical efficacy of standard treatments for DU remains poor. Traditional Chinese medicine (TCM) shows a positive therapeutic effect on DU. Specifically, Zizhu ointment (ZZO) has been widely used to treat DU in long-term clinical practice, but the exact mechanism by which it promotes DU wound healing remains unknown. In this study, network analysis and high-performance liquid chromatography-high resolution mass spectrometry (UPLC-HRMS) were conducted to identify the active compounds of ZZO. We detected isovalerylshikonin (ISO), mandenol, daidzein, kaempferol, and formononetin in both network analysis and UPLC-HRMS. Moreover, ZZO could ameliorate DU by regulating the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT) and inflammation signaling pathways, according to the results of KEGG analysis. We established a DU mouse model with a high-fat diet and streptozotocin injection in vivo to evaluate the network analysis result. The experimental results showed that ZZO could inhibit inflammation, remodel fibrous tissue, and promote angiogenesis in the DU area, facilitating wound healing in DU mice. Moreover, the PI3K/AKT signaling pathway was indeed activated by ZZO treatment, promoting macrophage M2 polarization. In addition, we used molecular docking technology to evaluate the binding sites between ZZO and the PI3K/AKT pathway. The results showed that ISO has a good binding interaction with AKT. Moreover, ISO promoted M2 polarization in macrophages in a dose-dependent manner in vitro. Our study found that ZZO could promote DU wound healing by inhibiting inflammation, which was achieved by macrophage M2 polarization through activating the PI3K/AKT pathway. Further studies have demonstrated that ISO plays major role in the above process. These findings provide a theoretical basis for further preclinical evaluation and lay a foundation for nano-gel compound treatment with ZZO.
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Affiliation(s)
- Jie Wang
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Wang
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Renyan Huang
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenhui Li
- Collaborative Innovation Center, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Weijing Fan
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoming Hu
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao Yang
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiang Han
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China,Beicai Community Health Service Center, Shanghai, China
| | - Hongfei Wang
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guobin Liu
- Department of Peripheral Vascular Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Guobin Liu,
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Song M, Zong J, Zou L, Fu Z, Liu J, Wang S. Biological debridement combined with stem cell therapy will be a convenient and efficient method for treating chronic wounds in the future. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu M, Liu Z, Chen Y, Peng S, Yang J, Chen C, Wang J, Shang R, Tang Y, Huang Y, Zhang X, Hu X, Liou YC, Luo G, He W. Dendritic epidermal T cells secreting exosomes promote the proliferation of epidermal stem cells to enhance wound re-epithelialization. Stem Cell Res Ther 2022; 13:121. [PMID: 35313958 PMCID: PMC8935714 DOI: 10.1186/s13287-022-02783-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/09/2022] [Indexed: 12/04/2022] Open
Abstract
Background Efficient re-epithelialization is important for successful skin wound healing. The proportion of epidermal stem cells (EpSCs) and dendritic epidermal T cells (DETCs) determines the extent of wound re-epithelialization, especially in large areas of skin tissue loss. However, it remains unknown whether and how DETCs regulate the status of EpSCs to impact wound re-epithelialization. Methods To investigate how DETCs regulate EpSCs in skin re-epithelialization, we utilized normal or full-thickness skin deficient wide type (WT) mice and Tcrσ knockout (Tcrσ−/−) mice with DETCs or DETCs-derived exosomes (Exos) treatment. Flow cytometry analysis (FCAS), BrdU labelled experiments, immunofluorescence and immunohistochemical assays were performed to detect the proportion of EpSCs in the epidermis. Wound closure rate and re-epithelialization were assayed by a macroscopical view and hematoxylin–eosin (H&E) staining. EpSCs in vitro were co-cultured with DETCs in a transwell-dependent or -independent manner, or supplement with GW4869 or Exos (5 µg/mL, 15 µg/mL and 45 µg/mL), and the proliferation of EpSCs was detected by means of FCAS and CFSE. Results Our data showed that the proportion of CD49fbriCD71dim cells, K15+ cells and BrdU+ cells in the normal epidermis of Tcrδ−/− mice had no significant difference compared to WT mice. For wounded Tcrδ−/− mice, DETCs treatment increase the proportion of CD49fbriCD71dim cells, K15+ cells and BrdU+ cells in the epidermis around the wound in comparison to PBS treatment. DETCs significantly increased the number of CD49fbriCD7dim cells and K15+ cells through transwell-dependent or -independent manners relative to control group. Furthermore, Exos stimuli remarkedly promote the proliferation of EpSCs compared to control group, while the increasement was suppressed when DETCs were interfered with GW4869. Gross observation and H&E staining showed that Exos significantly accelerated wound closure and increased re-epithelialization length in Tcrδ−/− mice when compared to control mice. Additionally, we found in vivo that Exos observably facilitated the proliferation of CD49fbriCD7dim cells and K15+ cells. Conclusions We revealed that DETCs enhanced the proliferation of EpSCs in the epidermis around the wounds to accelerate re-epithelialization in which Exos played important roles in the remote regulation of EpSCs proliferation. Together, these findings suggest a mechanistic link among DETC-derived exosomes, the proliferation of EpSCs, and wound re-epithelialization in the skin.
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Affiliation(s)
- Mian Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Zhihui Liu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Yunxia Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Shiya Peng
- Department of Dermatology, Xinqiao Hospital, Army Military Medical University, Chongqing, 400038, China
| | - Jiacai Yang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Cheng Chen
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Jue Wang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Ruoyu Shang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Yuanyang Tang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Academy of Biological Engineering, Chongqing University, Chongqing, 400038, China
| | - Yong Huang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Xiaorong Zhang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Xiaohong Hu
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China
| | - Yih-Cherng Liou
- Department Biological Sciences, National University of Singapore, Singapore, 117543, Singapore.
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China. .,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China.
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China. .,Chongqing Key Laboratory for Disease Proteomics, Chongqing, 400038, China.
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Feng L, Shi W, Chen Q, Cheng H, Bao J, Jiang C, Zhao W, Zhao C. Smart Asymmetric Hydrogel with Integrated Multi-Functions of NIR-Triggered Tunable Adhesion, Self-Deformation, and Bacterial Eradication. Adv Healthc Mater 2021; 10:e2100784. [PMID: 34050632 DOI: 10.1002/adhm.202100784] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/17/2021] [Indexed: 02/05/2023]
Abstract
Multifunctional hydrogels acting as wound dressing have received extensive attention in soft tissue repair; however, it is still a challenge to develop a non-antibiotic-dependent antibacterial hydrogel that has tunable adhesion and deformation to achieve on-demand removal. Herein, an asymmetric adhesive hydrogel with near-infrared (NIR)-triggered tunable adhesion, self-deformation, and bacterial eradication is designed. The hydrogel is prepared by the crosslinking polymerization of N-isopropylacrylamide and acrylic acid, during the sedimentation of conductive PPy-PDA nanoparticles based on the polymerization of pyrrole (Py) and dopamine (DA). Due to the conversion capacity from NIR light into heat for PPy-PDA NPs, the formed temperature-sensitive hydrogel exhibits tissue adhesive as well as NIR-triggered tunable adhesion and self-deformation property, which can achieve an on-demand dressing refreshing. Systematically in vitro/in vivo antibacterial experiments indicate that the hydrogel shows excellent disinfection capability to both Gram-negative and Gram-positive bacteria. The in vivo experiments in a full-layer cutaneous wound model demonstrate that the hydrogel has a good treatment effect to promote wound healing. Overall, the asymmetric hydrogel with tunable adhesion, self-deformation, conductive, and photothermal antibacterial activity may be a promising candidate to fulfill the functions of adhesion on skin tissue, easy removing on-demand, and accelerating the wound healing process.
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Affiliation(s)
- Lan Feng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
| | - Wenbin Shi
- College of Chemical Engineering Sichuan University Chengdu 610065 China
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610041 P. R. China
| | - Qin Chen
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
| | - Huitong Cheng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
| | - Jianxu Bao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
| | - Chunji Jiang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
| | - Weifeng Zhao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
| | - Changsheng Zhao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Med‐X Center for Materials Sichuan University Chengdu 610065 China
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases West China Hospital of Stomatology Sichuan University Chengdu 610041 P. R. China
- College of Biomedical Engineering Sichuan University Chengdu 610064 China
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