Gastric Cancer Cell-Derived Exosomes Can Regulate the Biological Functions of Mesenchymal Stem Cells by Inducing the Expression of Circular RNA circ_0004303.

Stem Cells and Development
Li BaRobert Chunhua Zhao

Abstract

As an important component of the dynamic tumor microenvironment, mesenchymal stem cells (MSCs) can interact with tumor cells to promote tumor growth. Treatment with tumor cell-derived exosomes can change the biological functions of MSCs. We want to study the mechanism by which exosomes derived from gastric cancer cells affect the biological functions of MSCs. After MSCs were treated with adenocarcinoma gastric cells (AGS) cell-derived exosomes, circular RNAs differentially expressed in MSCs were verified using existing RNA microarray results combined with quantitative real-time polymerase chain reaction (qRT-PCR). Then, circular RNAs were knocked down or overexpressed by plasmids, and the functions of circular RNAs were evaluated by Migration and invasion assay. Dual luciferase reporter assay was used to evaluate the potential mechanism of circular RNAs. After treatment with exosomes secreted by AGS, the results showed that some circular RNAs expressed by human adipose-derived MSCs showed significant differences. The elevated circ_0004303 promoted the migration and invasion of human adipose-derived MSCs in vitro. Circ_0004303 upregulated the expression of activated leukocyte cell adhesion molecule (ALCAM) by acting as a miR-148...Continue Reading

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Citations

Nov 6, 2021·Cancer Cell International·Xiuyun XuanChangzheng Huang

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Methods Mentioned

BETA
immunoprecipitation
Protein
electrophoresis
PCR
flow cytometry
ICE
chip

Software Mentioned

GraphPad
GraphPad Prism
TargetScan
miRWalk

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