<p>YAP and TAZ are downstream effectors of the Hippo signaling pathway, known to shuttle between the cytoplasm and nucleus, where they primarily function as transcriptional coactivators. Although their nuclear role has been well characterized, the non-transcriptional functions of YAP/TAZ remain poorly understood. In this study, we report that YAP/TAZ localize to the metaphase spindle in a microtubule-dependent manner. Specifically, we demonstrate that YAP interacts with α-tubulin via its WW domain. Notably, while the spindle localization of YAP/TAZ does not affect the mechanics of mitotic cell division, it does influence the distribution of YAP/TAZ protein levels between the resulting daughter cells. These findings reveal a novel, non-transcriptional role for YAP/TAZ during mitosis.</p>

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Spindle localization of YAP/TAZ maintains even distribution of YAP/TAZ in daughter cells

  • Yuxing Huang

摘要

YAP and TAZ are downstream effectors of the Hippo signaling pathway, known to shuttle between the cytoplasm and nucleus, where they primarily function as transcriptional coactivators. Although their nuclear role has been well characterized, the non-transcriptional functions of YAP/TAZ remain poorly understood. In this study, we report that YAP/TAZ localize to the metaphase spindle in a microtubule-dependent manner. Specifically, we demonstrate that YAP interacts with α-tubulin via its WW domain. Notably, while the spindle localization of YAP/TAZ does not affect the mechanics of mitotic cell division, it does influence the distribution of YAP/TAZ protein levels between the resulting daughter cells. These findings reveal a novel, non-transcriptional role for YAP/TAZ during mitosis.