Journal
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
Volume 1866, Issue 5, Pages 773-792Publisher
ELSEVIER
DOI: 10.1016/j.bbamcr.2019.01.016
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Funding
- NSERC [RGPIN-2016-04812]
- Canadian Defence Academy
- Ontario's Ministry of Research and Innovation
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Alterations in the levels of numerous second messengers are ubiquitous responses to all stresses that lead to apoptotic or hormetic responses. The sheer number and vast diversity of different second messenger systems activated in response to stresses belies a complexity that is often overlooked. This negligence is in large part due to the excessive focus on classical stress responsive second messenger mediators of stress especially Reactive Oxygen Species (ROS) but also others like calcium and ceramide. Here we review the many different intracellular second messengers that are involved in stress responses. We further integrate this information to emphasize that initial stress mediated responses consist of increased levels of a multitude of intracellular second messengers that serve to elicit the appropriate cell survival and/or cell death responses. We suggest that a greater focus on second messenger systems may shed more light on the processes that serve in the initiation of stress mediated PCD.
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