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Mohseni, N., McMillan, S.C., Chaudhary, R., Mok, J., Reed, B.H. (2009). Autophagy promotes caspase-dependent cell death during Drosophila development.  Autophagy 5(3): 329--338.
FlyBase ID
FBrf0207492
Publication Type
Research paper
Abstract

The relationship between autophagic cell death and apoptosis is a poorly understood aspect of programmed cell death (PCD). We have examined this relationship by studying the elimination of an extra-embryonic tissue, known as the amnioserosa (AS), during Drosophila development. The AS becomes autophagic during the final stages of embryogenesis; ultimately, however, the elimination of the AS involves caspase-dependent nuclear fragmentation, tissue dissociation and engulfment by phagocytic macrophages. Mutants that are defective in the activation or execution of caspase-dependent PCD fail to degrade and eliminate the AS but show no abatement in AS autophagy. Sustained autophagy does not, therefore, necessarily result in cell death. Surprisingly, the downregulation of autophagy also results in a persistent AS phenotype and reduced cell death. Conversely, upregulation of autophagy results in caspase-dependent premature AS dissociation. These observations are consistent with the interpretation that autophagy is a prerequisite for caspase-dependent cell death in the AS.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Autophagy
    Title
    Autophagy
    Publication Year
    2005-
    ISBN/ISSN
    1554-8627 1554-8635
    Data From Reference