Tumour microenvironment: TGFbeta: the molecular Jekyll and Hyde of cancer

Brian Bierie1, Harold L Moses

  • 1Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA.

Insights

Transforming growth factor-beta (TGFbeta) signaling impacts cancer by acting within tumor cells or through host-tumor interactions. Its dual role in suppression and promotion, influenced by the tumor microenvironment, offers therapeutic targets.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Transforming growth factor-beta (TGFbeta) signaling is a critical regulator in cancer development.
  • TGFbeta exerts dual roles, functioning as both a tumor suppressor and promoter.
  • Its activity is modulated by the complex tumor microenvironment.

Purpose of the Study:

  • To elucidate the multifaceted roles of TGFbeta signaling in cancer.
  • To explore how the tumor microenvironment influences TGFbeta's effects on cancer progression.
  • To identify opportunities for therapeutic interventions targeting TGFbeta pathways.

Main Methods:

  • Review of existing literature on TGFbeta signaling in cancer.
  • Analysis of TGFbeta's autonomous effects within tumor cells.
  • Investigation of TGFbeta's interactions with tumor microenvironment components (fibroblasts, immune cells, extracellular matrix).

Main Results:

  • TGFbeta signaling has distinct tumor-suppressive and tumor-promoting functions.
  • The tumor microenvironment significantly alters TGFbeta's impact on cancer progression and metastasis.
  • Complex crosstalk between TGFbeta and microenvironment factors is evident.

Conclusions:

  • TGFbeta signaling is a key player in cancer, with context-dependent roles.
  • Targeting TGFbeta and its microenvironmental interactions presents a promising therapeutic strategy.
  • Understanding these complex mechanisms is crucial for developing effective cancer treatments.

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