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Updated: Aug 15, 2026

Determination of the Relative Potency of an Anti-TNF Monoclonal Antibody (mAb) by Neutralizing TNF Using an In Vitro Bioanalytical Method
Published on: September 16, 2017
Tumour necrosis factor-alpha (TNF-alpha): the good, the bad and potentially very effective
J A Barbara1, X Van ostade, A Lopez
1Division of Human Immunology, Institute of Medical and Veterinary Science/Hanson Centre for Cancer Research, Adelaide, Australia.
Abstract:
When the tumour necrosis factor-alpha (TNF-alpha) gene was cloned the protein became available for use in clinical trials as an antineoplastic agent. However, side effects have severely limited its application in cancer treatment. Studies on the species specificity of TNF have indicated that the p75 TNF receptor (TNFR75) may play an important role in the generation of these side effects in humans. Using human TNF mutants with selective receptor-binding properties it has been demonstrated in neutrophils and endothelium that TNFR75 is involved in the mediation of the proinflammatory activity of TNF by facilitating the p55 TNF receptor (TNFR55). However, only TNFR55 appears to be involved in mediating TNF cytotoxicity. Therefore the potential exists for the successful reintroduction of TNF-alpha, in the form of TNFR55-selective mutants, into the clinical arena with the promise of reduced side effects.
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