Hippo signaling pathway regulates Ebola virus transcription and egress

Jingjing Liang, Marija A. Djurkovic, Carson G. Leavitt, Olena Shtanko () and Ronald N. Harty ()
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Jingjing Liang: University of Pennsylvania
Marija A. Djurkovic: Texas Biomedical Research Institute
Carson G. Leavitt: Texas Biomedical Research Institute
Olena Shtanko: Texas Biomedical Research Institute
Ronald N. Harty: University of Pennsylvania

Nature Communications, 2024, vol. 15, issue 1, 1-16

Abstract: Abstract Filovirus-host interactions play important roles in all stages of the virus lifecycle. Here, we identify LATS1/2 kinases and YAP, key components of the Hippo pathway, as critical regulators of EBOV transcription and egress. Specifically, we find that when YAP is phosphorylated by LATS1/2, it localizes to the cytoplasm (Hippo “ON”) where it sequesters VP40 to prevent egress. In contrast, when the Hippo pathway is “OFF”, unphosphorylated YAP translocates to the nucleus where it transcriptionally activates host genes and promotes viral egress. Our data reveal that LATS2 indirectly modulates filoviral VP40-mediated egress through phosphorylation of AMOTp130, a positive regulator of viral egress, but more surprisingly that LATS1/2 kinases directly modulate EBOV transcription by phosphorylating VP30, an essential regulator of viral transcription. In sum, our findings highlight the potential to exploit the Hippo pathway/filovirus axis for the development of host-oriented countermeasures targeting EBOV and related filoviruses.

Date: 2024
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DOI: 10.1038/s41467-024-51356-z

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