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GDC-0084 inhibits cutaneous squamous cell carcinoma cell growth

Ling-Tao Ding1, Peng Zhao2, Min-Lie Yang2

  • 1Department of Plastic Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China; Department of Burns and Plastic Surgery, The Third Affiliated Hospital of Nantong University, Wuxi, Jiangsu, China.

Biochemical and Biophysical Research Communications
|August 4, 2018
PubMed

Insights

GDC-0084, a PI3K-mTOR dual inhibitor, effectively suppressed cutaneous squamous cell carcinoma (cSCC) cell growth and proliferation in vitro and in vivo. This novel compound demonstrated potent anti-tumor activity by inhibiting key signaling pathways without harming normal skin cells.

Area of Science:

  • Oncology
  • Molecular Biology
  • Dermatology

Background:

  • Cutaneous squamous cell carcinoma (cSCC) is a common skin cancer.
  • Targeting the PI3K-Akt-mTOR pathway is a promising strategy for cancer treatment.
  • Developing novel inhibitors with improved efficacy and selectivity is crucial.

Purpose of the Study:

  • To evaluate the anti-cancer potential of GDC-0084, a novel PI3K-mTOR dual inhibitor, against cutaneous squamous cell carcinoma (cSCC).
  • To investigate the molecular mechanisms underlying GDC-0084's activity in cSCC cells.
  • To assess the in vivo efficacy of GDC-0084 in a preclinical model of cSCC.

Main Methods:

  • Treatment of established and primary human cSCC cells with GDC-0084.
  • Assessment of cell survival, proliferation, apoptosis, and cell cycle arrest.
  • Analysis of key signaling pathway components (PI3K-Akt-mTOR, DNA-PKcs) phosphorylation.
  • Evaluation of GDC-0084 efficacy in a murine xenograft model of cSCC.

Main Results:

  • GDC-0084 potently inhibited cSCC cell survival and proliferation at nanomolar concentrations.
  • GDC-0084 induced apoptosis and cell cycle arrest in cSCC cells, showing greater efficiency than other inhibitors.
  • GDC-0084 blocked PI3K-Akt-mTOR and DNA-PKcs signaling pathways in cSCC cells.
  • GDC-0084 demonstrated significant anti-tumor activity in vivo, inhibiting xenograft growth and related signaling pathways.

Conclusions:

  • GDC-0084 is a potent PI3K-mTOR dual inhibitor with significant anti-cancer activity against cSCC.
  • GDC-0084 exerts its effects by inhibiting PI3K-Akt-mTOR and DNA-PKcs signaling pathways.
  • GDC-0084 represents a promising therapeutic candidate for cutaneous squamous cell carcinoma treatment.
Keywords:
Cutaneous squamous cell carcinomaDNA-PKcsGDC-0084PI3K-Akt-mTOR

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