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RASSF1A Elicits Apoptosis through an MST2 Pathway Directing Proapoptotic Transcription by the p73 Tumor Suppressor Protein

Open access
Matallanas, David, Romano, David, Yee, Karen, Meissl, Katrin, Kucerova, Lucia, Piazzolla, Daniela, Baccarini, Manuela, Vass, J. Keith, Kolch, Walter, O'Neill, Eric·2007·Molecular Cell

Abstract

SUMMARY RASSF1A is a tumor suppressor gene that is epigenetically silenced in a wide variety of sporadic human malignancies. Expression of alternative RASSF1 isoforms cannot substitute for RASSF1A-promoted cell-cycle arrest and apoptosis. Apoptosis can be driven by either activating Bax or by activation of MST kinases. The Raf1 proto-oncogene binds to MST2, preventing its activation and proapoptotic signaling. Here we show that key steps in RASSF1A-induced apoptosis are the disruption of the inhibitory Raf1-MST2 complex by RASSF1A and the concomitant enhancement of MST2 interaction with its substrate, LATS1. Subsequently, RASSF1A-activated LATS1 phosphorylates and releases the transcriptional regulator YAP1, allowing YAP1 to translocate to the nucleus and associate with p73, resulting in transcription of the proapoptotic target gene puma. Our results describe an MST2-dependent effector pathway for RASSF1A proapoptotic signaling and indicate that silencing of RASSF1A in tumors removes a proapoptotic signal emanating from p73.

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Crossref · 10.1016/j.molcel.2007.08.008

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Metadata

Authors
Matallanas, D., Romano, D., Yee, K., Meissl, K., Kucerova, L., Piazzolla, D., Baccarini, M., Vass, J. K., Kolch, W., & O'Neill, E.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2007-09
Volume
27
Issue
6
Pages
962-975
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2027928327
Cited by
416
References
4
FWCI
9.30
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: RASSF1A Elicits Apoptosis through an MST2 Pathway Directing Proapoptotic Transcription by the p73 Tumor Suppressor Protein. https://app.cochat.ai/papers/10.1016/j.molcel.2007.08.008
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Matallanas, D., Romano, D., Yee, K., Meissl, K., Kucerova, L., Piazzolla, D., Baccarini, M., Vass, J. K., Kolch, W., & O'Neill, E. (2007). RASSF1A Elicits Apoptosis through an MST2 Pathway Directing Proapoptotic Transcription by the p73 Tumor Suppressor Protein. Molecular Cell. https://doi.org/10.1016/j.molcel.2007.08.008

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