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Updated: May 12, 2026

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Published on: March 27, 2020
The YAP1-NPM1 nuclear complex regulates MYC and reveals a targetable oncogenic node
Abdulrahman M Dwead1,2, Marwah M Al-Mathkour1,3, Maxim Khanov4
1Department of Biological Sciences and Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA.
Yes-associated protein 1 (YAP1) and nucleophosmin 1 (NPM1) form a complex in prostate cancer. Inhibiting NPM1 disrupts this axis, suppressing cancer growth and offering new therapeutic strategies.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Yes-associated protein 1 (YAP1) and nucleophosmin 1 (NPM1) are proteins with known cellular functions.
- Their combined roles in cancer development are not well understood.
Purpose of the Study:
- To investigate the interaction between YAP1 and NPM1 in prostate cancer.
- To determine the functional consequences of this interaction and its potential as a therapeutic target.
Main Methods:
- Proteomics, co-immunoprecipitation, proximity ligation, and GST-pulldown assays were used to detect the YAP1-NPM1 complex.
- Androgen signaling modulation was studied in androgen receptor-positive cells.
- Genetic and pharmacologic inhibition of NPM1 was performed.
- Prostate tumor samples were analyzed using immunological and computational methods.
Main Results:
- YAP1 and NPM1 form a direct nuclear protein complex in prostate cancer cells and tissues.
- Androgen signaling influences the YAP1-NPM1 interaction.
- NPM1 inhibition disrupts the complex, reduces YAP1 and MYC expression, and inhibits cell proliferation and motility.
- Elevated YAP1 and NPM1 expression and interaction correlate with prostate cancer progression.
Conclusions:
- The YAP1-NPM1 axis is a critical regulator in prostate cancer, integrating oncogenic pathways.
- This axis represents a potential therapeutic vulnerability.
- Targeting the YAP1-NPM1 axis may improve androgen receptor-directed therapies for advanced prostate cancer.
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