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Zhang J, Zhao D, Zang Z, Ruan Z, Fu Q, Zhang K. miR-200a-3p-enriched MSC-derived extracellular vesicles reverse erectile function in diabetic rats by targeting Keap1. Biomed Pharmacother 2024; 177:116964. [PMID: 38959607 DOI: 10.1016/j.biopha.2024.116964] [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: 04/18/2024] [Revised: 06/12/2024] [Accepted: 06/15/2024] [Indexed: 07/05/2024] Open
Abstract
BACKGROUND The administration of mesenchymal stem cells (MSCs) through intracavernous injection is a potential therapeutic approach for managing diabetes mellitus-induced erectile dysfunction (DMED). However, pulmonary embolism and tumorigenicity are fatal adverse events that limit the clinical application of MSCs. In this study, we examined the therapeutic efficacy and potential mechanism of MSC-derived extracellular vesicles (MSC-EVs). METHODS In this study, forty 8-week-old male SpragueDawley (SD) rats were utilised. In the control group, ten rats were administered an intraperitoneal injection of PBS. STZ (60 mg/kg) was intraperitoneally injected into the remaining rats to establish a diabetes mellitus (DM) model. Afterwards, the diabetic rats were divided into three groups at random: the DM group (intracavernosal injection of PBS), the EVs group (intracavernosal injection of MSC-EVs), and the EVs-200a group (intracavernosal injection of miR-200a-3p-enriched extracellular vesicles). Erectile function was determined by measuring intracavernous pressure in real time and utilising electrical stimulation of the cavernous nerves. The smooth muscle content was evaluated through the investigation of penile tissue using immunofluorescence staining, Masson's trichrome staining, and western blotting after euthanasia. Superoxide dismutase (SOD), malondialdehyde (MDA), and glutathione (GSH) levels in the corpus cavernosum were measured via ELISA. In vitro, hydrogen peroxide (H2O2) was used to induce oxidative stress. The viability of corpus cavernosum smooth muscle cells (ccSMCs) incubated with or without H2O2 was measured using a CCK8 assay. Flow cytometry was used to assess the levels of reactive oxygen species (ROS) and apoptosis in ccSMCs. Furthermore, a dual-luciferase reporter assay was performed to validate the relationship between miR-200a-3p and Keap1. RESULTS Reversal of erectile function was observed in the EVs groups, especially in the EVs-200a group. DM increased the MDA level and decreased the SOD and GSH levels. In the DM group, the expression of alpha-smooth muscle actin (α-SMA) and smooth muscle 22 alpha (SM22α) was decreased, and the expression of osteopontin (OPN) was increased. Western blotting revealed decreased Nrf2, HO-1, and Bcl2 expression and increased Keap1, Bax and cleaved caspase3 expression in the cavernous tissue. miR-200a-3p-enriched extracellular vesicles (EVs-200a) reversed these changes and inhibited the loss of smooth muscle content and cavernous fibrosis. In vitro, H2O2 induced high ROS levels in ccSMCs and increased apoptosis, and these effects reversed by EVs-200a. H2O2 reduced Nrf2, HO-1, and Bcl2 expression and increased Keap1, Bax and cleaved caspase-3 expression, and these effects were reversed by MSC-EVs, especially EVs-200a. The of dual-luciferase reporter assay results indicated that miR-200a-3p directly targeted Keap1 in a negative manner. CONCLUSION MSC-EVs, especially EVs-200a, alleviated erectile dysfunction in diabetic rats through the regulation of phenotypic switching, apoptosis and fibrosis. Mechanistically, miR-200a-3p targeted the Keap1/Nrf2 pathway to attenuate oxidative stress in diabetic rats.
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Affiliation(s)
- Jing Zhang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Danfeng Zhao
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250199, China
| | - Zhenjie Zang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Zheng Ruan
- Department of Urology, Shandong Provincial Hospital, Shandong University, Jinan 250021, China; Department of Urology, Tai'an City Central Hospital, Tai'an 271099, China
| | - Qiang Fu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250199, China; Key Laboratory of Urinary Diseases in Universities of Shandong, Shandong First Medical University, Jinan 250021, China.
| | - Keqin Zhang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China.
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Ni Y, Hua Y, He Z, Hu W, Chen Z, Wang D, Li X, Sun Y, Jiang G. Release of exosomes from injectable silk fibroin and alginate composite hydrogel for treatment of myocardial infarction. J Biomater Appl 2024; 39:139-149. [PMID: 38688330 DOI: 10.1177/08853282241251610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Myocardial infarction (MI) is considered as a significant cause of death globally. Exosomes (EXOs) are essential for intercellular communication and pathophysiology of several cardiovascular diseases. Nevertheless, the short half-life and rapid clearance of EXOs leads to a lack of therapeutic doses delivered to the lesioned area. Therefore, an injectable silk fibroin and alginate (SF/Alg) composite hydrogel was developed to bind folate receptor-targeted EXOs (FA-EXOs) derived from H9C2 cells for the therapy of myocardial injury following myocardial infarction-ischemia/reperfusion (MI-I/R). The resulting composite exhibits a variety of properties, including adjustable gelation kinetics, shear-thinning injectability, soft and dynamic stability that adapts to the heartbeat, and outstanding cytocompatibility. After injected into the damaged rat heart, administration of SF/Alg + FA-EXOs significantly enhanced cardiac function as demonstrated by improved ejection fraction, fractional shortening and decreased fibrosis area. The results of real-time PCR and immunofluorescence staining show a remarkable up-regulation in the expression of proteins (CD31) and genes (VWF and Serca2a) related to the heart. Conversely, expression of fibrosis-related genes (TGF-β1) decreased significantly. Therefore, the obtained SF/Alg + FA-EXOs system remarkably enhanced the intercellular interactions, promoted cell proliferation and angiogenesis, and achieved an outstanding therapeutic effect on MI.
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Affiliation(s)
- Yunjie Ni
- Department of Cardiology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Yinjian Hua
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, China
| | - Zhengfei He
- Department of Cardiology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Weilv Hu
- Department of Cardiology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Zhiyun Chen
- Department of Cardiology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Diqing Wang
- Department of Cardiology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Xintong Li
- Department of Medicine, Zhejiang Zhongwei Medical Research Center, Hangzhou, China
| | - Yanfang Sun
- School of Life Science and Medicines, Zhejiang Sci-Tech University, Hangzhou, China
| | - Guohua Jiang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, China
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Hua Y, He Z, Ni Y, Sun L, Wang R, Li Y, Li X, Jiang G. Silk fibroin and hydroxypropyl cellulose composite injectable hydrogel-containing extracellular vesicles for myocardial infarction repair. Biomed Phys Eng Express 2024; 10:045001. [PMID: 38640908 DOI: 10.1088/2057-1976/ad40b2] [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: 12/16/2023] [Accepted: 04/19/2024] [Indexed: 04/21/2024]
Abstract
Extracellular vesicles (EVs) have been recognized as one of the promising specific drugs for myocardial infarction (MI) prognosis. Nevertheless, low intramyocardial retention of EVs remains a major impediment to their clinical application. In this study, we developed a silk fibroin/hydroxypropyl cellulose (SF/HPC) composite hydrogel combined with AC16 cell-derived EVs targeted modification by folic acid for the treatment of acute myocardial infarction repair. EVs were functionalized by distearoylphosphatidyl ethanolamine-polyethylene glycol (DSPE-PEG-FA) via noncovalent interaction for targeting and accelerating myocardial infarction repair.In vitro, cytocompatibility analyses revealed that the as-prepared hydrogels had excellent cell viability by MTT assay and the functionalized EVs had higher cell migration by scratch assay.In vivo, the composite hydrogels can promote myocardial tissue repair effects by delaying the process of myocardial fibrosis and promoting angiogenesis of infarct area in MI rat model.
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Affiliation(s)
- Yinjian Hua
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, People's Republic of China
| | - Zhengfei He
- Department of Cardiology, The First People's Hospital, Fuyang, Hangzhou, 311400, People's Republic of China
| | - Yunjie Ni
- Department of Cardiology, The First People's Hospital, Fuyang, Hangzhou, 311400, People's Republic of China
| | - Linggang Sun
- Department of Cardiology, The First People's Hospital, Fuyang, Hangzhou, 311400, People's Republic of China
| | - Rui Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, People's Republic of China
| | - Yan Li
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, People's Republic of China
| | - Xintong Li
- Department of Medicine, Zhejiang Zhongwei Medical Research Center, Hangzhou, 310018, People's Republic of China
| | - Guohua Jiang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
- International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers of Zhejiang Province, Hangzhou, 310018, People's Republic of China
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Yue Y, Liu Y, Lin Y, Guo F, Cai K, Chen S, Zhang W, Tang S. A carboxymethyl chitosan/oxidized hyaluronic acid composite hydrogel dressing loading with stem cell exosome for chronic inflammation wounds healing. Int J Biol Macromol 2024; 257:128534. [PMID: 38048924 DOI: 10.1016/j.ijbiomac.2023.128534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/14/2023] [Accepted: 11/29/2023] [Indexed: 12/06/2023]
Abstract
Stem cell exosomes (Exo) play an important role in the transformation of macrophages, but the rapid clearance of Exo in vivo limits their therapeutic effects for chronic inflammation wounds healing. Here, stem cell Exo was isolated and introduced to a composite hydrogel including carboxymethyl chitosan (CMCS) and oxidized hyaluronic acid (OHA) through chemical cross-linking, which formed an Exo-loaded (CMCS/OHA/Exo) hydrogel. The CMCS/OHA/Exo hydrogel exhibited a function of Exo sustained release and an Exo protection within 6 days. This CMCS/OHA/Exo hydrogel was much better than CMCS/OHA hydrogel or Exo solution in macrophage cell phagocytosis, proliferation and migration in vitro, especially, played an obviously positive role in the transformation of macrophages compared with the reference groups. For the treatment of the chronic inflammation wounds in vivo, the CMCS/OHA/Exo hydrogel had the best results at wound heal rate and inhibiting the secretion of inflammatory factors, and it was far superior to reference groups in wound re-epithelization and collagen production. CMCS/OHA/Exo hydrogels can promote Exo release based on hydrogel degradation to regulate macrophages transformation and accelerate chronic wound healing. The study offers a method for preparing Exo-loaded hydrogels that effectively promote the transformation of macrophages and accelerate chronic inflammatory wound healing.
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Affiliation(s)
- Yan Yue
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China.
| | - Yukai Lin
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Fengbiao Guo
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Kun Cai
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Shengqin Chen
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Department of Biology, College of Science, Shantou University, Shantou, Guangdong 515063, PR China
| | - Wancong Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou University, Shantou, Guangdong 515063, PR China
| | - Shijie Tang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou University, Shantou, Guangdong 515063, PR China
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