Affiliation:
1. Department of Medical Laboratory Center General Hospital of Central Theatre Command of People's Liberation Arm Wuhan Hubei China
2. Oncology Department Maoming Hospital of Traditional Chinese Medicine Maoming Guangdong China
3. Applied Mathematics, School of Mathematics and Physics Xi'an Jiaotong‐Liverpool University Suzhou Jiangsu China
Abstract
AbstractExosomes are membrane‐enclosed nanovesicles that shuttle active cargoes, such as circular RNAs (circRNAs) and microRNAs (miRNAs), between different cells. Human umbilical cord‐derived mesenchymal stem cells (Hu‐MSCs) can migrate to tumor sites and exert complex functions throughout tumor progression. In this study, we successfully isolated Hu‐MSCs from human umbilical cords based on their surface marker expression. Hu‐MSC‐derived exosomes significantly reduced the invasion, migration, and proliferation of cholangiocarcinoma (CCA) cells. Furthermore, circ_0037104 was downregulated in CCA and inhibited the proliferation and metastasis of CCA cells. Then, we investigated the effect of Hu‐MSC‐derived exosomal circ_0037104 on CCA. Circ_0037104 mainly regulates miR‐620 and enhances APAF1 expression, inhibiting CCA cell proliferation and metastasis. Overall, Hu‐MSC exosomal circ_0037104 contributes to the progression and stemness of CCA cells via miR‐620/APAF1. In conclusion, Hu‐MSC‐derived exosomal circ_0037104 sponges miR‐620 directly and negatively targets APAF1 to suppress CCA.
Subject
Health, Toxicology and Mutagenesis,Toxicology,Molecular Biology,Molecular Medicine,Biochemistry,General Medicine