Background
Beclin 1 plays an essential role in autophagy; however, the regulation of Beclin 1 expression remains largely unexplored. An earlier ChIP-on-chip study suggested Beclin 1 could be an E2F target. Previously, we also reported that 14-3-3tau regulates E2F1 stability, and is required for the expression of several E2F1 target genes. 14-3-3 proteins mediate many cellular signaling processes, but its role in autophagy has not been investigated. We hypothesize that 14-3-3tau could regulate Beclin 1 expression through E2F1 and thus regulate autophagy.
Conclusion
Taken together, this study uncovers a role for 14-3-3tau in Beclin 1 and autophagy regulation probably through regulation of E2F1.