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Liang Q, Zhou D, Ge X, Song P, Chu W, Xu J, Shen Y. Exosomes from adipose-derived mesenchymal stem cell improve diabetic wound healing and inhibit fibrosis via miR-128-1-5p/TGF-β1/Smad axis. Mol Cell Endocrinol 2024; 588:112213. [PMID: 38556162 DOI: 10.1016/j.mce.2024.112213] [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: 01/01/2024] [Revised: 03/13/2024] [Accepted: 03/17/2024] [Indexed: 04/02/2024]
Abstract
OBJECTIVE Difficult-to-heal wound is a prevalent and significant complication of diabetes, characterized by impaired functionality of epithelial cells such as fibroblasts. This study aims to investigate the potential mechanism of ADSC-Exos promoting diabetic wound healing by regulating fibroblast function. MATERIALS AND METHODS ADSC-Exos were confirmed through TEM, NTA, and Western Blot techniques. The study conducted on rat skin fibroblasts (RSFs) exposed to 33 mmol/L glucose in vitro. We used cck-8, EDU, transwell, and scratch assays to verify the proliferation and migration of RSFs. Furthermore, levels of TGF-β1 and α-SMA proteins were determined by immunofluorescence and Western Blot. RSFs were transfected with miR-128-1-5p mimics and inhibitors, followed by quantification of TGF-β1, α-SMA, Col I and Smad2/3 protein levels using Western Blot. In vivo, the effects of ADSC-Exos on diabetic wounds were assessed using digital imaging, histological staining, as well as Western Blot analysis. RESULTS In vitro, ADSC-Exos significantly enhanced proliferation and migration of RSFs while reducing the expression of TGF-β1 and α-SMA. In vivo, ADSC-Exos effectively promoted diabetic wound healing and mitigated scar fibrosis. Additionally, ADSC-Exos exhibited elevated levels of miR-128-1-5p, which targets TGF-β1, resulting in a notable reduction in TGF-β1, α-SMA, Col I and smad2/3 phosphorylation in RSFs. CONCLUSION In conclusion, our results demonstrated that ADSC-Exos promoted diabetic wound healing, and inhibited skin fibrosis by regulating miR-128-1-5p/TGF-β1/Smad signaling pathway, which provides a promising innovative treatment for diabetic wound healing.
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Affiliation(s)
- Qiu Liang
- Department of Plastic Surgery and Burn, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, Anhui, 233000, China
| | - Danlian Zhou
- Department of Plastic Surgery and Burn, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, Anhui, 233000, China
| | - Xiuyu Ge
- Department of Plastic Surgery and Burn, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, Anhui, 233000, China
| | - Peijun Song
- Department of Plastic Surgery and Burn, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China
| | - Weiwei Chu
- Department of Plastic Surgery and Burn, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China
| | - Jing Xu
- Department of Plastic Surgery and Burn, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China; Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, Anhui, 233000, China.
| | - Yan Shen
- Department of Prevention and Health Care, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233000, China.
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Cai B, Ma M, Yuan R, Zhou Z, Zhang J, Kong S, Lin D, Lian L, Li J, Zhang X, Nie Q. MYH1G-AS is a chromatin-associated lncRNA that regulates skeletal muscle development in chicken. Cell Mol Biol Lett 2024; 29:9. [PMID: 38177995 PMCID: PMC10765903 DOI: 10.1186/s11658-023-00525-x] [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: 05/16/2023] [Accepted: 12/15/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Skeletal muscle development is pivotal for animal growth and health. Recently, long noncoding RNAs (lncRNAs) were found to interact with chromatin through diverse roles. However, little is known about how lncRNAs act as chromatin-associated RNAs to regulate skeletal muscle development. Here, we aim to investigate the regulation of chromatin-associated RNA (MYH1G-AS) during skeletal muscle development. METHODS We provided comprehensive insight into the RNA profile and chromatin accessibility of different myofibers, combining RNA sequencing (RNA-seq) with an assay for transposase-accessible chromatin with high-throughput sequencing (ATAC-seq). The dual-luciferase reporter assay and chromatin immunoprecipitation (ChIP) assay were used to analyze the transcriptional regulation mechanism of MYH1G-AS. ALKBH5-mediated MYH1G-AS N6-methyladenosine (m6A) demethylation was assessed by a single-base elongation and ligation-based qPCR amplification method (SELECT) assay. Functions of MYH1G-AS were investigated through a primary myoblast and lentivirus/cholesterol-modified antisense oligonucleotide (ASO)-mediated animal model. To validate the interaction of MYH1G-AS with fibroblast growth factor 18 (FGF18) protein, RNA pull down and an RNA immunoprecipitation (RIP) assay were performed. Specifically, the interaction between FGF18 and SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 5 (SMARCA5) protein was analyzed by coimmunoprecipitation (Co-IP) and a yeast two-hybrid assay. RESULTS A total of 45 differentially expressed (DE) lncRNAs, with DE ATAC-seq peaks in their promoter region, were classified as open chromatin-associated lncRNAs. A skeletal muscle-specific lncRNA (MSTRG.15576.9; MYH1G-AS), which is one of the open chromatin-associated lncRNA, was identified. MYH1G-AS transcription is coordinately regulated by transcription factors (TF) SMAD3 and SP2. Moreover, SP2 represses ALKBH5 transcription to weaken ALKBH5-mediated m6A demethylation of MYH1G-AS, thus destroying MYH1G-AS RNA stability. MYH1G-AS accelerates myoblast proliferation but restrains myoblast differentiation. Moreover, MYH1G-AS drives a switch from slow-twitch to fast-twitch fibers and causes muscle atrophy. Mechanistically, MYH1G-AS inhibits FGF18 protein stabilization to reduce the interaction of FGF18 to SMARCA5, thus repressing chromatin accessibility of the SMAD4 promoter to activate the SMAD4-dependent pathway. CONCLUSIONS Our results reveal a new pattern of the regulation of lncRNA expression at diverse levels and help expound the regulation of m6A methylation on chromatin status.
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Affiliation(s)
- Bolin Cai
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Manting Ma
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Rongshuai Yuan
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Zhen Zhou
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Jing Zhang
- Randall Centre of Cell and Molecular Biophysics, Faculty of Life Sciences and Medicine, New Hunt's House, King's College London, Guy's Campus, London, UK
| | - Shaofen Kong
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Duo Lin
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Ling Lian
- National Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Juan Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xiquan Zhang
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China
| | - Qinghua Nie
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China.
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Livestock Breeding, Guangzhou, China.
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Bonnici L, Suleiman S, Schembri-Wismayer P, Cassar A. Targeting Signalling Pathways in Chronic Wound Healing. Int J Mol Sci 2023; 25:50. [PMID: 38203220 PMCID: PMC10779022 DOI: 10.3390/ijms25010050] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Chronic wounds fail to achieve complete closure and are an economic burden to healthcare systems due to the limited treatment options and constant medical attention. Chronic wounds are characterised by dysregulated signalling pathways. Research has focused on naturally derived compounds, stem-cell-based therapy, small molecule drugs, oligonucleotide delivery nanoparticles, exosomes and peptide-based platforms. The phosphoinositide-3-kinase (PI3K)/protein kinase B (AKT), Wingless-related integration (Wnt)/β-catenin, transforming growth factor-β (TGF-β), nuclear factor erythroid 2-related factor 2 (Nrf2), Notch and hypoxia-inducible factor 1 (HIF-1) signalling pathways have critical roles in wound healing by modulating the inflammatory, proliferative and remodelling phases. Moreover, several regulators of the signalling pathways were demonstrated to be potential treatment targets. In this review, the current research on targeting signalling pathways under chronic wound conditions will be discussed together with implications for future studies.
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Affiliation(s)
| | | | | | - Analisse Cassar
- Department of Anatomy, University of Malta, MSD 2080 Msida, Malta; (L.B.); (S.S.); (P.S.-W.)
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Song Y, Ding Q, Hao Y, Cui B, Ding C, Gao F. Pharmacological Effects of Shikonin and Its Potential in Skin Repair: A Review. Molecules 2023; 28:7950. [PMID: 38138440 PMCID: PMC10745356 DOI: 10.3390/molecules28247950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Currently, skin injuries have a serious impact on people's lives and socio-economic stress. Shikonin, a naphthoquinone compound derived from the root of the traditional Chinese medicine Shikonin, has favorable biological activities such as anti-inflammatory, antibacterial, immunomodulatory, anticancer, and wound-healing-promoting pharmacological activities. It has been reported that Shikonin can be used for repairing skin diseases due to its wide range of pharmacological effects. Moreover, the antimicrobial activity of Shikonin can play a great role in food and can also reduce the number of pathogenic bacteria in food. This paper summarizes the research on the pharmacological effects of Shikonin in recent years, as well as research on the mechanism of action of Shikonin in the treatment of certain skin diseases, to provide certain theoretical references for the clinical application of Shikonin, and also to provides research ideas for the investigation of the mechanism of action of Shikonin in other skin diseases.
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Affiliation(s)
- Yanping Song
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology University, Jilin 132101, China;
| | - Qiteng Ding
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China;
| | - Yuewen Hao
- Jilin Jianwei Natural Biotechnology Co., Ltd., Linjiang 134600, China; (Y.H.); (B.C.)
| | - Bing Cui
- Jilin Jianwei Natural Biotechnology Co., Ltd., Linjiang 134600, China; (Y.H.); (B.C.)
| | - Chuanbo Ding
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology University, Jilin 132101, China;
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd., Dunhua 133700, China
| | - Feng Gao
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology University, Jilin 132101, China;
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Mao Y, Meng L, Liu H, Lu Y, Yang K, Ouyang G, Ban Y, Chen S. Therapeutic potential of traditional Chinese medicine for vascular endothelial growth factor. J Zhejiang Univ Sci B 2022; 23:353-364. [PMID: 35557037 DOI: 10.1631/jzus.b2101055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Vascular endothelial growth factor (VEGF) is the main regulator of physiological angiogenesis during embryonic development, bone growth, and reproductive function, and it also participates in a series of pathological changes. Traditional Chinese medicine (TCM), with a history of more than 2000 years, has been widely used in clinical practice, while the exploration of its mechanisms has only begun. This review summarizes the research of recent years on the influence of TCM on VEGF. It is found that many Chinese medicines and recipes have a regulatory effect on VEGF, indicating that Chinese medicine has broad prospects as a complementary and alternative therapy, providing new treatment ideas for clinical applications and the theoretical basis for research on the mechanisms of TCM.
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Affiliation(s)
- Yijia Mao
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301608, China
| | - Lingkai Meng
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301608, China
| | - Huayi Liu
- Department of Digestive Diseases, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, China.
| | - Yuting Lu
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301608, China
| | - Kuo Yang
- Department of Digestive Diseases, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, China
| | - Guangze Ouyang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301608, China
| | - Yanran Ban
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301608, China
| | - Shuang Chen
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301608, China
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