Ecdysone Signaling at Metamorphosis Triggers Apoptosis of Drosophila Abdominal Muscles
Author
Cheng, Daojun
Dhanyasi, Nagaraju
Cho, Julio
Dura, Jean-Maurice
VijayRaghavan, Krishnaswamy
Published Version
https://doi.org/10.1016/j.ydbio.2013.08.029Metadata
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Zirin, Jonathan, Daojun Cheng, Nagaraju Dhanyasi, Julio Cho, Jean-Maurice Dura, Krishnaswamy VijayRaghavan, Norbert Perrimon. "Ecdysone Signaling at Metamorphosis Triggers Apoptosis of Drosophila Abdominal Muscles." Developmental Biology 383, no. 2 (2013): 275-284. DOI: 10.1016/j.ydbio.2013.08.029Abstract
One of the most dramatic examples of programmed cell death occurs during Drosophila metamorphosis, when most of the larval tissues are destroyed in a process termed histolysis. Much of our understanding of this process comes from analyses of salivary gland and midgut cell death. In contrast, relatively little is known about the degradation of the larval musculature. Here, we analyze the programmed destruction of the abdominal dorsal exterior oblique muscle (DEOM) which occurs during the first 24 hrs of metamorphosis. We find that ecdysone signaling through Ecdysone receptor isoform B1 is required cell autonomously for the muscle death. Furthermore, we show that the orphan nuclear receptor FTZ-F1, opposed by another nuclear receptor, HR39, plays a critical role in the timing of DEOM histolysis. Finally, we show that unlike the histolysis of salivary gland and midgut, abdominal muscle death occurs by apoptosis, and does not require autophagy. Thus, there is no set rule as to the role of autophagy and apoptosis during Drosophila histolysis.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991436/Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAACitable link to this page
https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37369712
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