A glance through Autophagy or any other journal in this field shows that it is very common to block autophagy by RNA interference-based knockdown of ATG mRNAs in mammalian cell lines. Our lab's experience is that this approach can easily make for failed experiments because good knockdown of even essential autophagy regulators does not necessarily mean you will get good inhibition of autophagy, and, over time, cells can find ways to circumvent the inhibitory effects of the knockdown.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3974882PMC
http://dx.doi.org/10.4161/auto.24895DOI Listing

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