PMID- 12554798 OWN - NLM STAT- MEDLINE DCOM- 20030220 LR - 20191210 IS - 0741-5400 (Print) IS - 0741-5400 (Linking) VI - 73 IP - 2 DP - 2003 Feb TI - Interleukin-18. PG - 213-24 AB - Interleukin-18 (IL-18), a recently described member of the IL-1 cytokine superfamily, is now recognized as an important regulator of innate and acquired immune responses. IL-18 is expressed at sites of chronic inflammation, in autoimmune diseases, in a variety of cancers, and in the context of numerous infectious diseases. This short review will describe the basic biology of IL-18 and thereafter address its potential effector and regulatory role in several human disease states including autoimmunity and infection. IL-18, previously known as interferon-gamma (IFN-gamma)-inducing factor, was identified as an endotoxin-induced serum factor that stimulated IFN-gamma production by murine splenocytes [(1) ]. IL-18 was cloned from a murine liver cell cDNA library generated from animals primed with heat-killed Propionibacterium acnes and subsequently challenged with lipopolysaccharide [(2) ]. Nucleotide sequencing of murine IL-18 predicted a precursor polypeptide of 192 amino acids lacking a conventional signal peptide and a mature protein of 157 amino acids. Subsequent cloning of human IL-18 cDNA revealed 65% homology with murine IL-18 [(3) ] and showed that both contain an unusual leader sequence consisting of 35 amino acids at their N terminus. FAU - Gracie, J Alastair AU - Gracie JA AD - Centre for Rheumatic Diseases, University of Glasgow, 10 Alexandra Parade, Glasgow G31 2ER, Scotland, UK. FAU - Robertson, Susan E AU - Robertson SE FAU - McInnes, Iain B AU - McInnes IB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - England TA - J Leukoc Biol JT - Journal of leukocyte biology JID - 8405628 RN - 0 (IL18R1 protein, human) RN - 0 (Interleukin-18) RN - 0 (Interleukin-18 Receptor alpha Subunit) RN - 0 (Receptors, Interleukin) RN - 0 (Receptors, Interleukin-18) SB - IM MH - Animals MH - Autoimmune Diseases/immunology MH - Gene Expression Regulation MH - Humans MH - Infections/immunology MH - Inflammation/immunology MH - Interleukin-18/antagonists & inhibitors/genetics/*physiology MH - Interleukin-18 Receptor alpha Subunit MH - Receptors, Interleukin/physiology MH - Receptors, Interleukin-18 RF - 187 EDAT- 2003/01/30 04:00 MHDA- 2003/02/21 04:00 CRDT- 2003/01/30 04:00 PHST- 2003/01/30 04:00 [pubmed] PHST- 2003/02/21 04:00 [medline] PHST- 2003/01/30 04:00 [entrez] AID - 10.1189/jlb.0602313 [doi] PST - ppublish SO - J Leukoc Biol. 2003 Feb;73(2):213-24. doi: 10.1189/jlb.0602313.