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Targetome profiling, pathway analysis and genetic association study implicate miR-202 in lymphomagenesis

Aaron E Hoffman1, Ran Liu, Alan Fu

  • 1Corresponding Author: Yong Zhu, Yale School of Public Health, Yale School of Medicine, New Haven, CT 06520, USA. yong.zhu@yale.edu

Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology
|January 22, 2013
PubMed
Abstract

Insights

MicroRNA-202 (miR-202) plays a role in follicular lymphoma development. A genetic variant in miR-202 is linked to increased risk, suggesting its potential as a biomarker.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • MicroRNAs (miRNAs) are crucial in tumorigenesis.
  • miR-202 dysregulation is linked to various cancers, including follicular lymphoma.

Purpose of the Study:

  • To investigate the role of miR-202 in follicular lymphoma.
  • To identify miR-202 targets and assess the impact of a genetic variant on its function and cancer risk.

Main Methods:

  • Ribonucleoprotein immunoprecipitation-microarray (RIP-Chip) to identify miR-202 targets.
  • Ingenuity Pathway Analysis for functional interactions.
  • Genetic association study of a miR-202 polymorphism (rs12355840) and follicular lymphoma risk.
  • In vitro functional assays.

Main Results:

  • Identified 141 potential miR-202 targets, enriched in cancer-related pathways.
  • Found a significant association between the rs12355840 variant and increased follicular lymphoma risk.
  • Demonstrated that the variant allele reduces miR-202 levels by affecting precursor processing.

Conclusions:

  • miR-202 is implicated in follicular lymphomagenesis.
  • miR-202 may function as a tumor suppressor in follicular lymphoma.
  • The miR-202 variant warrants investigation as a biomarker for follicular lymphoma risk.

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