Targeting GLI Transcription Factors in Cancer

Miroslava Didiasova1, Liliana Schaefer2, Malgorzata Wygrecka3,4

  • 1Department of Biochemistry, Faculty of Medicine, Universities of Giessen and Marburg Lung Center, Friedrichstrasse 24, 35392 Giessen, Germany. miroslava.didiasova@biochemie.med.uni-giessen.de.

Insights

Aberrant hedgehog (Hh) signaling drives cancer, and while SMO inhibitors work initially for basal cell carcinoma (BCC), resistance emerges. Glioma-associated oncogene (GLI) transcription factors are key players in Hh pathway activation and cancer progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Signaling

Background:

  • Aberrant hedgehog (Hh) signaling is implicated in over 25% of human cancer deaths.
  • Smoothened (SMO) inhibitors show initial efficacy in basal cell carcinoma (BCC) but acquired resistance leads to relapse.
  • Non-canonical, SMO-independent Hh pathway activation contributes to therapeutic resistance in BCC.

Purpose of the Study:

  • To review the role of glioma-associated oncogene (GLI) transcription factors in Hh signaling.
  • To explore the involvement of GLI factors in regulating oncogenic signaling pathways.
  • To highlight GLIs as central hubs in tumor signaling networks for anti-cancer therapy development.

Main Methods:

  • Literature review of studies on hedgehog signaling in cancer.
  • Analysis of the downstream effectors of canonical and non-canonical Hh pathways.
  • Investigation of GLI transcription factors' role in tumor signaling.

Main Results:

  • GLI transcription factors are the main downstream effectors of both canonical and non-canonical Hh cascades.
  • GLIs are involved in the regulation of multiple oncogenic signaling pathways.
  • Hh signaling contributes significantly to malignant transformation.

Conclusions:

  • GLI transcription factors are central regulators in tumor signaling networks.
  • GLIs represent attractive molecular targets for novel anti-cancer therapies.
  • Targeting GLIs may overcome resistance mechanisms associated with SMO inhibitors.

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