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Han L, Zhao Z, Chen X, Yang K, Tan Z, Huang Z, Zhou L, Dai R. Human umbilical cord mesenchymal stem cells-derived exosomes for treating traumatic pancreatitis in rats. Stem Cell Res Ther 2022; 13:221. [PMID: 35619158 PMCID: PMC9137180 DOI: 10.1186/s13287-022-02893-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/10/2022] [Indexed: 01/30/2023] Open
Abstract
Background The therapeutic and protective effects of human umbilical cord mesenchymal stem cells-exosomes (hucMSC-Exs) on traumatic pancreatitis (TP) remain unknown. Here, we established a rat model of TP and evaluated and compared the therapeutic effects of hUC-MSCs and hucMSC-Exs. Methods HucMSC-Exs were obtained by ultracentrifugation and identified using transmission electron microscopy and western blot analysis. TP rats were treated by tail vein injection of hUC-MSCs and hucMSC-Exs. Their homing in rats was observed by performing fluorescence microscopy. The degree of pancreatic tissue damage was assessed by HE staining, the expression levels of amylase, lipase, and inflammatory cytokines were detected by ELISA, apoptosis was detected by TUNEL assay, and the expression levels of various apoptosis-related proteins were detected by western-blot. The expression levels of apoptosis-related molecular markers were detected by RT-qPCR. Results The colonization of exosomes was observed in pancreatic tissue. Compared to TP group, the histopathological score of pancreas was significantly decreased in the TP + hUC-MSCs group and TP + hucMSC-Exs group (P < 0.05). Compared to TP group, the activity of serum amylase and lipase was significantly decreased (P < 0.05). The expression levels of IL-6 and TNF-α were significantly decreased, while those of IL-10 and TGF-β were significantly increased (P < 0.05). The apoptosis index of the TP group was significantly increased (P < 0.05), whereas that of the TP + hUC-MSCs and TP + hucMSC-Exs groups was significantly decreased (P < 0.05). Compared to TP group, the expression levels of Bax, Bcl-2, and Caspase-3 were significantly decreased in the TP + hUC-MSCs group and TP + hucMSC-Exs group (P < 0.05). Conclusion HucMSC-Exs can colonize injured pancreatic tissue, inhibit the apoptosis of acinar cells, and control the systemic inflammatory response to facilitate the repair of pancreatic tissue.
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Affiliation(s)
- Li Han
- General Surgery Center, General Hospital of Western Theater Command, No. 270, Rongdu Rd, Jinniu District, Chengdu, 610083, Sichuan Province, China.,College of Medicine, Southwest Jiaotong University, Chengdu, 610031, China
| | - Zhirong Zhao
- College of Medicine, Southwest Jiaotong University, Chengdu, 610031, China
| | - Xingyun Chen
- Department of Hepatobiliary and Pancreatic Surgery, Integrated Traditional Chinese and Western Medicine Hospital of Liangshan Yi Autonomous Prefecture, Xichang, 615000, Sichuan Province, China
| | - Ke Yang
- Department of Cardiovascular Surgery, General Hospital of Western Theater Command, Chengdu, 610083, Sichuan Province, China
| | - Zhen Tan
- General Surgery Center, General Hospital of Western Theater Command, No. 270, Rongdu Rd, Jinniu District, Chengdu, 610083, Sichuan Province, China
| | - Zhu Huang
- General Surgery Center, General Hospital of Western Theater Command, No. 270, Rongdu Rd, Jinniu District, Chengdu, 610083, Sichuan Province, China
| | - Lichen Zhou
- General Surgery Center, General Hospital of Western Theater Command, No. 270, Rongdu Rd, Jinniu District, Chengdu, 610083, Sichuan Province, China.,College of Clinical Medicine, Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Ruiwu Dai
- General Surgery Center, General Hospital of Western Theater Command, No. 270, Rongdu Rd, Jinniu District, Chengdu, 610083, Sichuan Province, China. .,College of Medicine, Southwest Jiaotong University, Chengdu, 610031, China. .,College of Clinical Medicine, Southwest Medical University, Luzhou, 646000, Sichuan Province, China.
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