TNF and cancer: the two sides of the coin

Simone Mocellin1, Donato Nitti

  • 1Department of Oncological and Surgical Sciences, University of Padova, via Giustiniani 2, 35128 Padova, Italy. mocellins@hotmail.com

Insights

Tumor necrosis factor (TNF) paradoxically promotes and inhibits cancer. This review reconciles these effects, proposing a model for TNF's dual role in cancer development and treatment.

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Tumor necrosis factor (TNF), despite its name and anticancer approval, is implicated in cancer development and progression.
  • TNF acts as a central mediator of inflammation, potentially linking chronic inflammation to malignancy.
  • Deregulation of TNF in the tumor microenvironment may promote cancer cell invasion, migration, and metastasis.

Purpose of the Study:

  • To review evidence for both anticancer and cancer-promoting effects of TNF.
  • To propose a model explaining the paradoxical activities of TNF in cancer.

Main Methods:

  • Literature review of preclinical and clinical studies on TNF in cancer.
  • Analysis of molecular mechanisms underlying TNF's dual role.

Main Results:

  • TNF exhibits both antitumor properties and cancer-promoting functions.
  • Evidence supports TNF's involvement in inflammation-driven carcinogenesis.
  • TNF deregulation in the tumor microenvironment facilitates cancer spread.

Conclusions:

  • TNF possesses a complex, dual role in cancer, acting as both an anticancer agent and a promoter of tumor progression.
  • A proposed model aims to explain the coexistence of these opposing TNF activities in different cancer contexts.

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