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Shulin Wei,1,2,* Mingxing Li,1,2,* Qin Wang,1,2,* Yueshui Zhao,1,2 Fukuan Du,1,2 Yu Chen,1,2 Shuai Deng,1,2 Jing Shen,1,2 Ke Wu,1,2 Jiayue Yang,1,2 Yuhong Sun,1 Li Gu,1 Xiaobing Li,1 Wanping Li,1 Meijuan Chen,1 Xiao Ling,3 Lei Yu,3 Zhangang Xiao,1,2 Lishu Dong,3 Xu Wu1,2 1Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646100, People’s Republic of China; 2South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, 646100, People’s Republic of China; 3Department of Obstetrics, Luzhou Maternal & Child Health Hospital (Luzhou Second People’s Hospital), Luzhou, Sichuan, 646100, People’s Republic of China*These authors contributed equally to this workCorrespondence: Lishu Dong, Department of Obstetrics, Luzhou Maternal & Child Health Hospital (Luzhou Second People’s Hospital), Luzhou, Sichuan, 646100, People’s Republic of China, Email 1275607519@qq.com Xu Wu, Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646100, People’s Republic of China, Email wuxulz@126.comAbstract: Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract, which has a high recurrence rate and is incurable due to a lack of effective treatment. Mesenchymal stromal cells (MSCs) are a class of pluripotent stem cells that have recently received a lot of attention due to their strong self-renewal ability and immunomodulatory effects, and a large number of experimental and clinical models have confirmed the positive therapeutic effect of MSCs on IBD. In preclinical studies, MSC treatment for IBD relies on MSCs paracrine effects, cell-to-cell contact, and its mediated mitochondrial transfer for immune regulation. It also plays a therapeutic role in restoring the intestinal mucosal barrier through the homi