PMID- 12603603 OWN - NLM STAT- MEDLINE DCOM- 20030509 LR - 20190513 IS - 0019-2805 (Print) IS - 1365-2567 (Electronic) IS - 0019-2805 (Linking) VI - 108 IP - 3 DP - 2003 Mar TI - Macrophages exposed to Mycobacterium tuberculosis release chemokines able to recruit selected leucocyte subpopulations: focus on gammadelta cells. PG - 365-74 AB - Granuloma is a typical feature of tuberculosis. We evaluated the chemotaxis of selected human leucocyte subsets induced by macrophages incubated with Mycobacterium tuberculosis (MT)-derived products in vitro. The release of monocyte chemotactic protein 1 (MCP-1) and interleukin-8 (IL-8) correlated with the specific induction of strong chemotaxis towards monocytes and polymorphonuclear leucocytes (PMNs). gammadelta and T helper type 1 (Th1) alphabeta lymphocytes were chemoattracted, while T-resting, IL-2-activated and Th2 lymphocytes were unaffected. Activation with mycobacterium-derived, phosphate-containing components, modulated the chemokine receptor profile of gammadelta T lymphocytes as well as their pattern of cyto-chemokine production, disclosing a potential for their active participation in granuloma formation. In particular, CXCR3 and IP-10, which we found to be released by MT-pulsed alveolar macrophages, seem to represent the receptor-counter-receptor pair implicated in the chemotaxis of gammadelta lymphocytes. Immunohistochemical analysis and in situ hybridization revealed the in vivo presence of IL-8, MCP-1 and IL-10 in lymph node and lung tuberculous granulomas. Our results underscore the role of MT extracts in the induction of macrophage-derived chemokines responsible for the orchestrated recruitment of PMNs, monocytes, and Th1 and gammadelta T cells, as well as in the regulation of gammadelta function. FAU - Ferrero, Elisabetta AU - Ferrero E AD - Laboratory of Tumour Immunology, Universita Vita e Salute, Scientific Institute H San Raffaele, Via Olgettina 60, I-20132 Milan, Italy. e.ferrero@hsr.it FAU - Biswas, Priscilla AU - Biswas P FAU - Vettoretto, Katuscia AU - Vettoretto K FAU - Ferrarini, Marina AU - Ferrarini M FAU - Uguccioni, Mariagrazia AU - Uguccioni M FAU - Piali, Luca AU - Piali L FAU - Leone, Biagio Eugenio AU - Leone BE FAU - Moser, Bernhard AU - Moser B FAU - Rugarli, Claudio AU - Rugarli C FAU - Pardi, Ruggero AU - Pardi R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Immunology JT - Immunology JID - 0374672 RN - 0 (Antigens, Bacterial) RN - 0 (Chemokine CCL2) RN - 0 (Chemokines) RN - 0 (Interleukin-8) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Antigen, T-Cell, gamma-delta) SB - IM MH - Antigens, Bacterial/immunology MH - Cells, Cultured MH - Chemokine CCL2/genetics/metabolism MH - Chemokines/*metabolism MH - Chemotaxis, Leukocyte/immunology MH - Gene Expression MH - Granuloma/immunology MH - Humans MH - Interleukin-8/genetics/metabolism MH - Lung/immunology MH - Lymph Nodes/immunology MH - Macrophages, Alveolar/*immunology MH - Monocytes/immunology MH - Mycobacterium tuberculosis/*immunology MH - Neutrophils/immunology MH - RNA, Messenger/genetics MH - Receptors, Antigen, T-Cell, gamma-delta/*analysis MH - T-Lymphocyte Subsets/*immunology PMC - PMC1782907 EDAT- 2003/02/27 04:00 MHDA- 2003/05/13 05:00 PMCR- 2004/03/01 CRDT- 2003/02/27 04:00 PHST- 2003/02/27 04:00 [pubmed] PHST- 2003/05/13 05:00 [medline] PHST- 2003/02/27 04:00 [entrez] PHST- 2004/03/01 00:00 [pmc-release] AID - 1600 [pii] AID - 10.1046/j.1365-2567.2003.01600.x [doi] PST - ppublish SO - Immunology. 2003 Mar;108(3):365-74. doi: 10.1046/j.1365-2567.2003.01600.x.