(a) PANX1 channels release ATP “find-me” signals from cells undergoing apoptosis. (b) PANX1 blockade with trovafloxacin inhibits ATP release, increases the production of apoptotic bodies, and leads to formation of apoptodia. (Reprinted by permission from Macmillan Publishers, Ltd. C.D. Gregory. 2014. Nature. http://dx.doi.org/10.1038/nature13213, copyright 2014.)