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Updated: Mar 27, 2026

Monitoring Hippo Signaling Pathway Activity Using a Luciferase-based Large Tumor Suppressor LATS Biosensor
Published on: September 13, 2018
The Hippo Pathway as Drug Targets in Cancer Therapy and Regenerative Medicine
Shunta Nagashima, Yijun Bao, Yutaka Hata1
1Department of Medical Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
Abstract:
Yes-associated protein 1 (YAP1) and transcriptional co-activator with PDZ-binding motif (TAZ) co-operate with numerous transcription factors to regulate gene transcriptions. YAP1 and TAZ are negatively regulated by the tumor suppressive Hippo pathway. In human cancers, the Hippo pathway is frequently deregulated and YAP1 and TAZ escape the inhibition by the Hippo pathway. The upregulation of YAP1 and TAZ induces epithelial-mesenchymal transition and increases drug resistance in cancer cells. TAZ is implicated in cancer stemness. In consequence cancers with hyperactive YAP1 and TAZ are associated with poor clinical prognosis. Inhibitors of YAP1 and TAZ are reasoned to be beneficial in cancer therapy. On the other hand, since YAP1 and TAZ play important roles in the regulation of various tissue stem cells and in tissue repair, activators of YAP1 and TAZ are useful in the regenerative medicine. We discuss the potential application of inhibitors and activators of YAP1 and TAZ in human diseases and review the progress of drug screenings to search for them.
Insights
Yes-associated protein 1 (YAP1) and its partner TAZ are key regulators of gene transcription. Their dysregulation in cancer drives disease progression and drug resistance, while their activation is beneficial for tissue repair and regenerative medicine.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Yes-associated protein 1 (YAP1) and transcriptional co-activator with PDZ-binding motif (TAZ) are crucial transcriptional co-activators.
- The Hippo pathway negatively regulates YAP1 and TAZ activity.
- Deregulation of the Hippo pathway leads to YAP1/TAZ hyperactivation in human cancers.
Purpose of the Study:
- To discuss the dual role of YAP1 and TAZ in cancer and regenerative medicine.
- To review the progress in developing YAP1 and TAZ inhibitors and activators as therapeutic agents.
Main Methods:
- Review of existing literature on YAP1 and TAZ.
- Analysis of drug screening progress for YAP1 and TAZ modulators.
Main Results:
- YAP1 and TAZ upregulation promotes epithelial-mesenchymal transition, drug resistance, and cancer stemness, correlating with poor prognosis.
- YAP1 and TAZ are essential for tissue stem cell function and repair.
Conclusions:
- Inhibitors of YAP1 and TAZ show promise for cancer therapy.
- Activators of YAP1 and TAZ are valuable for regenerative medicine applications.
- Targeting YAP1 and TAZ offers therapeutic potential for various human diseases.
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