Rainbow trout (Oncorhynchus mykiss) recombinant IL-1 beta and derived peptides induce migration of head-kidney leucocytes in vitro

S Peddie, Jun Zou, C Cunningham, Christopher John Secombes

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The present work provides the first information concerning the chemoattractant activity of trout recombinant IL-1 beta and its derived peptides, referred to as P1, P2 and P3. The predicted rainbow trout mature interleukin-1 beta peptide was produced as a recombinant protein in Escherichia coh. The first peptide, P1, corresponded to fragment 146-157 (YVTPVPIETEAR) of the trout sequence and had an MW of 1.37 kDa. It was equivalent to a region known to be part of the receptor binding domain from the mammalian crystal structure of IL-1 beta complexed to its receptor. P2 was used as control peptide, consisting of the same 12 amino acids as P1, but arranged in a random sequence (VVEEYIRAPPTT). P3 was synthesised to complex with an adjacent region of the IL-1 receptor, and corresponded to fragment 207-216 (YRRNTGVDIS) of the trout sequence, with an MW of 1.18 kDa. Migration was stimulated when leucocytes were exposed to concentrations of greater than or equal to 10 ng ml(-1) rIL-1 beta. Peptide P3 also induced leucocyte migration, with an optimal dose of 0.25 mm being recorded. While P1 had no effect on cell migration when used alone, synergism was evident as a consequence of combining P1 with a suboptimal dose (0.01 mm) of P3. No synergism occurred when cells were exposed to a combination of P3 and the control peptide P2. (C) 2001 Academic Press.

Original languageEnglish
Pages (from-to)697-709
Number of pages13
JournalFish & Shellfish Immunology
Volume11
Issue number8
DOIs
Publication statusPublished - Nov 2001

Keywords

  • interleukin-1 beta
  • rainbow trout
  • recombinant protein
  • peptides
  • migration
  • leucocytes
  • interleukin-1 receptor
  • molecular-cloning
  • respiratory burst
  • immune-responses
  • leukocytes
  • fish
  • chemotaxis
  • protein
  • macrophages
  • expression

Cite this

Rainbow trout (Oncorhynchus mykiss) recombinant IL-1 beta and derived peptides induce migration of head-kidney leucocytes in vitro. / Peddie, S ; Zou, Jun; Cunningham, C ; Secombes, Christopher John.

In: Fish & Shellfish Immunology, Vol. 11, No. 8, 11.2001, p. 697-709.

Research output: Contribution to journalArticle

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