Metastasis and cancer associated fibroblasts: taking it up a NOTCH

Argha Ghosh1,2, Anirban K Mitra1,2,3

  • 1Indiana University School of Medicine-Bloomington, Bloomington, IN, United States.

Insights

Metastasis, a major cause of cancer deaths, involves tumor stroma. Notch signaling in cancer cells and tumor microenvironment (TME), particularly cancer-associated fibroblasts (CAFs), drives metastasis and therapy resistance.

Area of Science:

  • Oncology
  • Cancer Biology
  • Cellular Signaling

Background:

  • Metastasis accounts for 90% of cancer-related deaths, with the tumor stroma playing a critical role.
  • Aberrant cellular signaling in both cancer cells and the tumor microenvironment (TME) promotes tumorigenesis and metastasis.
  • The Notch signaling pathway is implicated in cancer development and progression, with emerging evidence of its role in the stroma.

Purpose of the Study:

  • To review the oncogenic role of Notch signaling in cancer cells.
  • To highlight the involvement of Notch signaling in the tumor microenvironment (TME), focusing on cancer-associated fibroblasts (CAFs).
  • To underscore the potential of targeting Notch signaling in the TME for developing novel anti-cancer and anti-metastatic therapies.

Main Methods:

  • Literature review of current findings on Notch signaling in cancer.
  • Analysis of Notch signaling's role in tumor stroma, specifically CAFs.
  • Synthesis of information regarding TME-targeted therapies involving Notch signaling.

Main Results:

  • Notch signaling is oncogenic in cancer cells.
  • Notch signaling significantly contributes to tumor progression via CAFs within the TME.
  • Understanding Notch signaling in the TME is crucial for developing stromal reprogramming strategies.

Conclusions:

  • Notch signaling is a key driver in both cancer cells and the TME, promoting metastasis.
  • Targeting Notch signaling in CAFs offers a promising therapeutic strategy for combating metastasis and therapy resistance.
  • Further research into Notch signaling in the TME is essential for advancing anti-cancer therapies.

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