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TNF-mediated inflammatory disease.

J R Bradley1

  • 1NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK. jrb1000@cam.ac.uk

The Journal of Pathology
|December 29, 2007
PubMed
Summary
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Tumor necrosis factor (TNF) is a key regulator of inflammation, impacting cell death, survival, and migration. Blocking TNF treats inflammatory diseases but can increase infection risk, showing its vital role in immunity.

Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • Tumor necrosis factor (TNF) was initially identified for its anti-tumor properties.
  • It is now recognized as a crucial mediator of inflammatory and immune responses.
  • TNF exerts its effects through two receptors, TNFR1 and TNFR2, initiating complex signaling pathways.

Purpose of the Study:

  • To review the signaling pathways and cellular effects of TNF.
  • To elucidate the role of TNF in various human diseases.
  • To discuss the therapeutic implications of targeting TNF.

Main Methods:

  • Literature review of TNF signaling and its role in disease.
  • Analysis of cellular responses mediated by TNFR1 and TNFR2 activation.
  • Examination of clinical data on anti-TNF therapies and their outcomes.

Related Experiment Videos

Main Results:

  • TNF signaling regulates diverse cellular processes including death, survival, differentiation, proliferation, and migration.
  • TNF induces pro-inflammatory changes in vascular endothelial cells, promoting leukocyte adhesion and thrombosis.
  • Anti-TNF agents are effective in treating inflammatory conditions like rheumatoid arthritis and psoriasis.
  • TNF plays a significant physiological role in host defense against infections.

Conclusions:

  • TNF is a central regulator of inflammation with diverse cellular and physiological roles.
  • Targeting TNF offers therapeutic benefits for inflammatory diseases.
  • Understanding TNF biology is critical for managing both inflammation and infection risk.