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The Nematode Caenorhabditis Elegans - A Versatile In Vivo Model to Study Host-microbe Interactions
Published on: October 18, 2017
Noncanonical cell death programs in the nematode Caenorhabditis elegans
E S Blum1, M Driscoll, S Shaham
1Laboratory of Developmental Genetics, The Rockefeller University, New York, NY 10065, USA.
Cell Death and Differentiation
|April 26, 2008
Summary
Caenorhabditis elegans utilizes a core gene pathway for developmental cell death, but noncanonical regulators and novel pathways also control this process, revealing multiple mechanisms for cellular demise.
Area of Science:
- Developmental Biology
- Genetics
- Cell Biology
Background:
- Four core genes (egl-1, ced-9, ced-4, ced-3) form a linear pathway regulating developmental cell death in C. elegans.
- This core pathway is conserved but can be modulated by additional regulators.
- Recent research indicates the existence of noncanonical mechanisms influencing cell death.
Purpose of the Study:
- To review evidence for noncanonical mechanisms controlling cell death in C. elegans.
- To explore novel regulatory modes of core apoptosis genes.
- To describe a newly identified cell death pathway independent of known genes.
Main Methods:
- Literature review of genetic studies in C. elegans.
- Analysis of existing data on apoptosis regulation.
- Description of a newly identified cell death pathway.
Main Results:
- Noncanonical regulators can promote or inhibit cell death onset.
- Novel mechanisms for regulating core apoptosis genes have been identified.
- A cell death pathway independent of all known C. elegans cell death genes exists.
Conclusions:
- C. elegans employs multiple strategies for developmental cell death control.
- Noncanonical pathways highlight the complexity of apoptosis regulation.
- Evolution has favored diverse mechanisms to ensure proper cellular demise.
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