Language

English

Publication Date

9-23-2025

Journal

Elife

DOI

10.7554/eLife.100248

PMID

40985618

PMCID

PMC12456957

PubMedCentral® Posted Date

September 2025

PubMedCentral® Full Text Version

Post-print

Abstract

The Hippo pathway controls organ development, homeostasis, and regeneration primarily by modulating YAP/TEAD-mediated gene expression. Although emerging studies report Hippo-YAP dysfunction after viral infection, it is largely unknown in the context of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Here, we analyzed RNA sequencing data from human-induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) and SARS-CoV-2-infected human lung samples, and observed a decrease in YAP target gene expression. In screening SARS-CoV-2 nonstructural proteins, we found that nonstructural protein 13 (NSP13), a conserved coronavirus helicase, inhibits YAP transcriptional activity independent of the upstream Hippo kinases LATS1/2. Consistently, introducing NSP13 into mouse cardiomyocytes suppresses an active form of YAP (YAP5SA) in vivo. Subsequent investigations on NSP13 mutants revealed that NSP13 helicase activity, including DNA binding and unwinding, is crucial for suppressing YAP transactivation in HEK293T cells. Mechanistically, TEAD4 serves as a platform to recruit NSP13 and YAP. NSP13 likely inactivates the YAP/TEAD4 transcription complex by remodeling chromatin to recruit proteins, such as transcription termination factor 2 (TTF2), to bind the YAP/TEAD/NSP13 complex. These findings reveal a novel YAP/TEAD regulatory mechanism and uncover molecular insights into Hippo-YAP regulation after SARS-CoV-2 infection in humans.

Keywords

Humans, Transcription Factors, Mice, Animals, Hippo Signaling Pathway, Signal Transduction, Protein Serine-Threonine Kinases, SARS-CoV-2, HEK293 Cells, YAP-Signaling Proteins, Viral Nonstructural Proteins, DNA-Binding Proteins, TEA Domain Transcription Factors, COVID-19, Adaptor Proteins, Signal Transducing, Myocytes, Cardiac, Muscle Proteins, Cell Cycle Proteins, Induced Pluripotent Stem Cells, RNA Helicases, Methyltransferases, Hela, Hippo pathway, NSP13, SARS-CoV2, TEAD, YAP, cardiomyocytes, cell biology, mouse, viruses

Published Open-Access

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