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Updated: Jun 23, 2025

Methods for Evaluating the Role of c-Fos and Dusp1 in Oncogene Dependence
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Published on: January 7, 2019

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An update on the tumor-suppressive functions of the RasGAP protein DAB2IP with focus on therapeutic implications

Rossella De Florian Fania1, Arianna Bellazzo2, Licio Collavin3

  • 1Department of Life Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy.

Cell Death and Differentiation
|June 20, 2024
PubMed

Insights

The tumor suppressor DAB2IP (Disabled homolog 2 interacting protein) is frequently lost in cancer, promoting tumor growth and metastasis. Reactivating DAB2IP may offer a novel therapeutic strategy to target multiple cancer pathways.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • The tumor microenvironment's crosstalk with cancer cells influences disease progression.
  • DAB2IP (Disabled homolog 2 interacting protein) acts as a tumor suppressor by regulating key signaling pathways.
  • DAB2IP inactivation is common in cancers, contributing to aggressiveness.

Purpose of the Study:

  • To review the tumor-suppressive functions of DAB2IP.
  • To examine the impact of DAB2IP inactivation on cancer development and the tumor microenvironment.
  • To explore therapeutic strategies targeting DAB2IP.

Main Methods:

  • Literature review of studies on DAB2IP function, inactivation, and therapeutic potential.
  • Analysis of DAB2IP's role in modulating oncogenic signaling pathways (Ras, TNFα/NF-κB, WNT/β-catenin, PI3K/AKT, androgen receptor).
  • Investigation of DAB2IP's involvement in cancer cell-stroma interactions and metastasis.

Main Results:

  • DAB2IP negatively controls Ras-dependent signals and modulates multiple oncogenic pathways.
  • Mechanisms of DAB2IP inactivation include promoter methylation, microRNA downregulation, and protein interactions.
  • Downregulation of DAB2IP in stromal cells may promote a pro-metastatic microenvironment.

Conclusions:

  • DAB2IP inactivation contributes to cancer aggressiveness through multiple oncogenic pathways.
  • Reactivating or upregulating DAB2IP presents a potential therapeutic strategy for various cancers.
  • Targeting DAB2IP could simultaneously inhibit cancer cells and the tumor microenvironment.

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