Investigation of autophagy-assisted cell death in response to the cancer cell toxin coibamide A Public Deposited

http://ir.library.oregonstate.edu/concern/undergraduate_thesis_or_projects/12579x96m

Access restricted to the OSU Community, at author's request, from: Sep.1, 2015 - Sep. 1, 2016.

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  • Autophagy, a homeostatic degradation pathway, has a role in promoting cell survival under stress conditions, but can also promote cell death under conditions of sustained stress. This project investigates the cytotoxic potential of coibamide A and other natural products in autophagy-deficient and wild-type mouse embryonic fibroblasts (MEFs). Wild-type MEFs were more vulnerable to coibamide A than cells lacking autophagy-related protein 5 (Atg5). Through cell viability assays and immunoblotting for markers of autophagy, it was found that restoration of expression of Atg5, a vital autophagy-related protein, in an autophagy-null background was able to partially restore the response characterized in wild-type MEFs. These results lend support to the existence of crosstalk between autophagy and apoptosis, and suggest coibamide A as a compound with characteristics that may utilize autophagy for pro-death signaling.
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Last modified: 11/18/2017

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