Journal
NATURE PROTOCOLS
Volume 1, Issue 4, Pages 1725-1731Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2006.235
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Funding
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM060124] Funding Source: NIH RePORTER
- NIGMS NIH HHS [R01 GM60124] Funding Source: Medline
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In Drosophila, vast numbers of cells undergo apoptosis during normal development. In addition, excessive apoptosis can be induced in response to a variety of stress or injury paradigms, including DNA damage, oxidative stress, nutrient deprivation, unfolded proteins and mechanical tissue damage. Two of the most commonly used methods to label apoptotic cells in Drosophila are terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) for fixed tissues and acridine orange (AO) staining for live embryos or tissues. Here, we describe protocols for labeling apoptotic cells in Drosophila embryos and adult male gonads. Slightly modified protocols can also be applied for other Drosophila tissues. The AO protocol is quick, simple and allows real-time imaging of doomed cells in live tissues. However, it is difficult to combine with conventional counterstains or Ab labeling. On the other hand, this functionality is readily afforded by the TUNEL protocol, which permits the detection of apoptotic cells in fixed tissues. These staining procedures can be completed in 1-2 d.
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