Control of apoptosis by asymmetric cell division

PLoS Biol. 2008 Apr 8;6(4):e84. doi: 10.1371/journal.pbio.0060084.

Abstract

Asymmetric cell division and apoptosis (programmed cell death) are two fundamental processes that are important for the development and function of multicellular organisms. We have found that the processes of asymmetric cell division and apoptosis can be functionally linked. Specifically, we show that asymmetric cell division in the nematode Caenorhabditis elegans is mediated by a pathway involving three genes, dnj-11 MIDA1, ces-2 HLF, and ces-1 Snail, that directly control the enzymatic machinery responsible for apoptosis. Interestingly, the MIDA1-like protein GlsA of the alga Volvox carteri, as well as the Snail-related proteins Snail, Escargot, and Worniu of Drosophila melanogaster, have previously been implicated in asymmetric cell division. Therefore, C. elegans dnj-11 MIDA1, ces-2 HLF, and ces-1 Snail may be components of a pathway involved in asymmetric cell division that is conserved throughout the plant and animal kingdoms. Furthermore, based on our results, we propose that this pathway directly controls the apoptotic fate in C. elegans, and possibly other animals as well.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Animals, Genetically Modified
  • Apoptosis*
  • Basic-Leucine Zipper Transcription Factors / genetics
  • Basic-Leucine Zipper Transcription Factors / metabolism
  • Caenorhabditis elegans / metabolism
  • Caenorhabditis elegans Proteins / genetics
  • Caenorhabditis elegans Proteins / metabolism*
  • Cell Death
  • Cell Division*
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / metabolism
  • Genes, Helminth
  • Heat-Shock Proteins / genetics
  • Phenotype
  • Signal Transduction
  • Transcription Factors / genetics
  • Transcription Factors / metabolism

Substances

  • Basic-Leucine Zipper Transcription Factors
  • CES-2 protein, C elegans
  • Caenorhabditis elegans Proteins
  • DNA-Binding Proteins
  • Dnj-11 protein, C elegans
  • Heat-Shock Proteins
  • Transcription Factors
  • ces-1 protein, C elegans

Associated data

  • RefSeq/NP_011801
  • RefSeq/NP_033610
  • RefSeq/NP_055192
  • RefSeq/NP_492338
  • RefSeq/NP_493610
  • RefSeq/NP_501006
  • RefSeq/NP_506575