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Updated: May 13, 2026

Monitoring Hippo Signaling Pathway Activity Using a Luciferase-based Large Tumor Suppressor (LATS) Biosensor
Published on: September 13, 2018
PML Surfs into HIPPO Tumor Suppressor Pathway.
Sabrina Strano1, Francesca Fausti, Silvia Di Agostino
1Molecular Chemoprevention Group, Molecular Medicine Area, Regina Elena National Cancer Institute Rome, Italy.
Promyelocytic leukemia protein (PML) enhances tumor suppression by integrating with HIPPO and p53 pathways. This crosstalk network amplifies the anti-tumor response against various oncogenic insults.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Tumor suppressor responses typically involve growth arrest, proliferation inhibition, apoptosis, senescence, and differentiation.
- Tumor suppression is increasingly understood as a result of integrated and synergistic pathway activities, including linear and lateral signaling.
- Lateral crosstalk signaling often involves common nodal proteins.
Purpose of the Study:
- To discuss the role of Promyelocytic leukemia protein (PML) in functional crosstalk with the HIPPO and p53 tumor suppressor pathways.
- To highlight PML's contribution to an integrated tumor suppressor network.
Main Methods:
- Literature review and discussion of existing research on PML, HIPPO, and p53 pathways.
- Analysis of signaling crosstalk mechanisms.
Main Results:
- Promyelocytic leukemia protein (PML) participates in functional crosstalk with both the HIPPO and p53 tumor suppressor pathways.
- PML possesses its own anti-tumor activity.
- PML contributes to the assembly of a superior, integrated network for tumor suppression.
Conclusions:
- PML plays a crucial role in coordinating multiple tumor suppressor pathways.
- The integrated network involving PML, HIPPO, and p53 is vital for maximizing the tumor suppressor response.
- This coordinated action is essential for combating diverse oncogenic insults.
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