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Using RNA-sequencing to Detect Novel Splice Variants Related to Drug Resistance in In Vitro Cancer Models
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mRNA splicing variants: exploiting modularity to outwit cancer therapy

Scott M Dehm1

  • 1Department of Laboratory Medicine and Pathology, Masonic Cancer Center, University of Minnesota Twin Cities, Minneapolis, MN 55455, USA. dehm@umn.edu

Cancer Research
|August 24, 2013
PubMed

Insights

Alternative splicing alterations in cancer cells drive therapy resistance by changing protein functions. Understanding these splice variants offers new strategies to resensitize tumors to cancer treatments.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Cancer therapies target cancer cell vulnerabilities, but resistance limits efficacy.
  • Alternative splicing generates proteome diversity and is often deregulated in cancer.
  • Splicing alterations contribute to primary and acquired resistance to cancer therapies.

Purpose of the Study:

  • To review the role of splice variants in cancer therapy resistance.
  • To discuss mechanisms of splicing deregulation in cancer.
  • To highlight novel strategies for therapy resensitization based on understanding splicing alterations.

Main Methods:

  • Literature review of studies on alternative splicing in cancer.
  • Analysis of identified splicing alterations and their impact on therapy efficacy.
  • Examination of mechanisms driving splicing changes in cancer cells.

Main Results:

  • Splicing alterations can eliminate essential protein domains or enzymatic activities.
  • Aberrant splicing can confer novel signaling functions that bypass cancer therapies.
  • Dysregulated splicing can uncouple signaling pathways from targeted regulatory points.

Conclusions:

  • Splice variants are key drivers of both primary and acquired resistance to cancer therapies.
  • Mechanistic insights into splicing alterations pave the way for developing resensitization strategies.
  • Targeting aberrant splicing presents a promising avenue for improving cancer treatment outcomes.

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