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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells

Published on: April 26, 2017

Alternative splicing and control of apoptotic DNA fragmentation

Xialu Li1, James L Manley

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

Cell Cycle (Georgetown, Tex.)
|June 9, 2006
PubMed

Insights

Alternative splicing regulates apoptosis by producing different protein variants. Inactivating ASF/SF2 protein impacts DNA fragmentation via ICAD pre-mRNA splicing, highlighting splicing

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • Alternative splicing generates mRNA isoforms with diverse protein functions.
  • The role of alternative splicing in regulating apoptosis has been proposed but remained unclear.
  • Specific mechanisms and physiological relevance of splicing in apoptosis require elucidation.

Purpose of the Study:

  • To investigate the role of alternative splicing in apoptosis regulation.
  • To explore the function of SR proteins in apoptotic pathways.
  • To understand how splicing factor ASF/SF2 influences specific apoptotic events.

Main Methods:

  • Analysis of alternative splicing events in apoptosis.
  • Investigating the impact of SR protein inactivation (ASF/SF2) on apoptosis.
  • Studying the regulation of ICAD pre-mRNA splicing.

Main Results:

  • Inactivation of ASF/SF2 significantly modulated internucleosomal DNA fragmentation.
  • ASF/SF2 regulates alternative splicing of ICAD pre-mRNA.
  • These findings link splicing regulation to a key apoptotic process.

Conclusions:

  • Regulated alternative splicing plays a critical role in apoptosis.
  • SR proteins, like ASF/SF2, are key regulators of apoptotic pathways.
  • Splicing control of ICAD offers a mechanism for apoptosis modulation.

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