PMID- 11894141 OWN - NLM STAT- MEDLINE DCOM- 20020830 LR - 20110708 IS - 0946-2716 (Print) IS - 0946-2716 (Linking) VI - 80 IP - 3 DP - 2002 Mar TI - Immunoregulatory functions of interleukin 18 and its role in defense against bacterial pathogens. PG - 147-62 AB - Interleukin-18 (IL-18) is a proinflammatory cytokine that belongs to the IL-1 cytokine family, due to its structure, receptor family and signal transduction pathways. Similarly to IL-1beta, IL-18 is synthesized as a precursor requiring caspase-1 for cleavage into an active IL-18 molecule. However, with regard to its capacity to induce the production of Th1 cytokines and to enhance cell-mediated cytotoxicity, IL-18 is also related to IL-12. Produced mainly by antigen-presenting cells, IL-18 is a pleiotropic factor involved in the regulation of both innate and acquired immune responses, playing a key role in autoimmune, inflammatory, and infectious diseases. This review summarizes recent advances in the understanding of IL-18 structure, processing, receptor expression, and immunoregulatory functions and emphasizes the critical role of this cytokine in bacterial infections. It focuses on the participation of this cytokine in the defense against intracellular bacteria, including Listeria, Shigella, Salmonella, and Mycobacterium tuberculosis. Since this cytokine may be particularly useful in immunoprophylactic and immunotherapeutic interventions in which the cellular response is most desirable, the potential therapeutic aspects of IL-18 is also discussed. FAU - Biet, Franck AU - Biet F AD - Laboratoire de Microbiologie Genetique et Moleculaire, Institut National de la Sante et de la Recherche Medicale U447, Institut Pasteur de Lille, 1 rue du Professeur Calmette, 59021 Lille, France. FAU - Locht, Camille AU - Locht C FAU - Kremer, Laurent AU - Kremer L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20011208 PL - Germany TA - J Mol Med (Berl) JT - Journal of molecular medicine (Berlin, Germany) JID - 9504370 RN - 0 (IL18R1 protein, human) RN - 0 (Interleukin-1) RN - 0 (Interleukin-18) RN - 0 (Interleukin-18 Receptor alpha Subunit) RN - 0 (Receptors, Interleukin) RN - 0 (Receptors, Interleukin-18) RN - 187348-17-0 (Interleukin-12) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Bacteria/*immunology MH - Bacterial Infections/drug therapy/immunology/metabolism MH - Humans MH - Interferon-gamma/biosynthesis/metabolism MH - Interleukin-1/immunology/metabolism MH - Interleukin-12/immunology/metabolism MH - Interleukin-18/*immunology/metabolism/therapeutic use MH - Interleukin-18 Receptor alpha Subunit MH - Receptors, Interleukin/metabolism MH - Receptors, Interleukin-18 MH - Signal Transduction RF - 144 EDAT- 2002/03/15 10:00 MHDA- 2002/08/31 10:01 CRDT- 2002/03/15 10:00 PHST- 2001/07/23 00:00 [received] PHST- 2001/10/05 00:00 [accepted] PHST- 2002/03/15 10:00 [pubmed] PHST- 2002/08/31 10:01 [medline] PHST- 2002/03/15 10:00 [entrez] AID - 10.1007/s00109-001-0307-1 [doi] PST - ppublish SO - J Mol Med (Berl). 2002 Mar;80(3):147-62. doi: 10.1007/s00109-001-0307-1. Epub 2001 Dec 8.