Cluster microRNAs miR-194 and miR-215 suppress the tumorigenicity of intestinal tumor organoids.

ABSTRACT: Tumor stem cells with self-renewal and multipotent capacity play critical roles in the initiation and progression of cancer. Recently, a new 3-D culture system known as organoid culture has been developed, allowing Lgr5-positive stem cells to form organoids that resemble the properties of original tissues. Here we established organoids derived from intestinal tumors of Apc^min/+ mice and normal intestinal epithelia of C57BL/6J mice and investigated the roles of microRNA (miRNA) in intestinal tumor organoids. The results of microarray analyses revealed that expression of the cluster miRNAs, miR-194 and miR-215 was markedly suppressed in intestinal tumor organoids in comparison with organoids derived from normal intestinal epithelia. Enforced expression of miR-194 resulted in inhib

SUBMITTER: Nakaoka T 

PROVIDER: S-EPMC5406536 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature