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Alternative pre-mRNA splicing regulation in cancer: pathways and programs unhinged

Charles J David1, James L Manley

  • 1Department of Biological Sciences, Columbia University, New York, New York 10027, USA.

Genes & Development
|November 3, 2010
PubMed

Insights

Alternative splicing allows human cells to create diverse protein functions from one gene. Cancer cells exploit this to produce proteins that enhance growth and survival, contributing to tumor development.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cancer Biology

Background:

  • Alternative splicing of messenger RNA (mRNA) precursors is a fundamental gene regulation mechanism in humans.
  • This process enables the generation of multiple protein isoforms with distinct or opposing functions from a single gene.
  • Cancer cells frequently utilize alternative splicing to produce proteins that support tumor growth and survival.

Purpose of the Study:

  • To investigate the role of alternative splicing in cancer.
  • To understand how deregulated cellular pathways contribute to aberrant splicing in tumors.
  • To elucidate the contribution of alternative splicing to tumor biology.

Main Methods:

  • Analysis of mRNA precursor splicing patterns.
  • Identification of alternatively spliced isoforms in cancer.
  • Investigation of signaling pathways involved in aberrant splicing.

Main Results:

  • Alternative splicing is a key mechanism for generating functional diversity in proteins.
  • Cancer cells re-express developmentally regulated isoforms, promoting malignancy.
  • Deregulation of common cancer pathways drives aberrant splicing, impacting tumor progression.

Conclusions:

  • Alternative splicing is a critical and flexible mechanism of gene control exploited by cancer.
  • Aberrant splicing, driven by deregulated cancer pathways, significantly contributes to all facets of tumor biology.
  • Targeting aberrant splicing pathways presents a potential therapeutic strategy for cancer treatment.

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