The miRNA regulates growth and tumorigenesis by repressing the cell cycle regulator .

Life Sci Alliance

Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark

Published: August 2019

AI Article Synopsis

  • Understanding organ size control is crucial in biology, as improper growth regulation can lead to tumor formation.
  • The Hippo signaling pathway is a key player in growth regulation and has roles in cancer, acting through specific miRNAs to influence cell proliferation and apoptosis.
  • This study identifies the gene Tribbles as a direct target that limits cell proliferation by suppressing the G2/M transition, highlighting its central role in tissue growth and tumorigenesis, alongside other cell cycle regulators.

Article Abstract

One of the fundamental issues in biology is understanding how organ size is controlled. Tissue growth has to be carefully regulated to generate well-functioning organs, and defects in growth control can result in tumor formation. The Hippo signaling pathway is a universal growth regulator and has been implicated in cancer. In , the Hippo pathway acts through the miRNA to regulate cell proliferation and apoptosis. Even though the targets regulating apoptosis have been determined, the target genes controlling proliferation have not been identified thus far. In this study, we identify the gene as a direct target gene. Tribbles limits cell proliferation by suppressing G2/M transition. We show that regulation by is central in controlling tissue growth and tumorigenesis. We expand our study to other cell cycle regulators and show that deregulated G2/M transition can collaborate with oncogene activation driving tumor formation.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6653758PMC
http://dx.doi.org/10.26508/lsa.201900381DOI Listing

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