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Small tumor necrosis factor receptor biologics inhibit the tumor necrosis factor-p38 signalling axis and inflammation

  • Violet R. Mukaro
  • , Alex Quach
  • , Michelle E. Gahan
  • , Bernadette Boog
  • , Zhi H. Huang
  • , Xiuhui Gao
  • , Carol Haddad
  • , Suresh Mahalingam
  • , Charles S. Hii
  • , Antonio Ferrante

    Research output: Contribution to journalArticlepeer-review

    56 Downloads (Pure)

    Abstract

    Despite anti-TNF therapy advancements for inflammatory diseases such as rheumatoid arthritis, the burden of diseases remains high. An 11-mer TNF peptide, TNF 70-80 , is known to stimulate selective functional responses compared to the parent TNF molecule. Here, we show that TNF 70-80 binds to the TNF receptor, activating p38 MAP kinase through TNF receptor-associated factor 2. Using truncated TNFR mutants, we identify the sequence in TNFRI which enables p38 activation by TNF 70-80 . Peptides with this TNFRI sequence, such as TNFRI 206-211 bind to TNF and inhibit TNF-induced p38 activation, respiratory burst, cytokine production and adhesion receptor expression but not F-Met-Leu-Phe-induced respiratory burst in neutrophils. TNFRI 206-211 does not prevent TNF binding to TNFRI or TNF-induced stimulation of ERK, JNK and NF-κB. TNFRI 206-211 inhibits bacterial lipopolysaccharide-induced peritonitis, carrageenan-induced and antigen-induced paw inflammation, and respiratory syncytial virus-induced lung inflammation in mice. Our findings suggest a way of targeting TNF-p38 pathway to treat chronic inflammatory disorders.

    Original languageEnglish
    Article number1365
    Pages (from-to)1-13
    Number of pages13
    JournalNature Communications
    Volume9
    DOIs
    Publication statusPublished - 1 Dec 2018

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