Tumour necrosis factor (TNF) plays a central role in chronic
inflammatory diseases, and TNF inhibitors rapidly reduce tissue inflammation
and clinical symptoms. Notably, TNF blockade often improves disease outcomes
without eliminating autoreactive lymphocytes or autoantibody production,
suggesting that TNF acts upstream of multiple inflammatory processes rather
than directly determining antigen specificity.

Which TNF‑mediated process most directly
explains its key role in sustaining autoimmune pathology?

Question

Tumour necrosis factor (TNF) plays a central role in chronic
inflammatory diseases, and TNF inhibitors rapidly reduce tissue inflammation
and clinical symptoms. Notably, TNF blockade often improves disease outcomes
without eliminating autoreactive lymphocytes or autoantibody production,
suggesting that TNF acts upstream of multiple inflammatory processes rather
than directly determining antigen specificity.

Which TNF‑mediated process most directly
explains its key role in sustaining autoimmune pathology?

Accepted Answer

Induction
of additional pro‑inflammatory cytokines such as IL‑6, amplifying inflammatory signalling cascades

Answer

Promotion
of angiogenesis to support tissue remodelling during chronic inflammation

Answer

Upregulation
of antigen presentation by increasing MHC expression on antigen‑presenting cells

Answer

Activation
of endothelial cells to enhance leukocyte adhesion and migration into affected
tissues

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Tumour necrosis factor (TNF) plays a central role in chronic inflammatory disea...

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