@article{18467, keywords = {Antigens, Bacterial, Cells, Cultured, Heat-Shock Proteins, Humans, In Vitro Techniques, Interleukin-6, Lepromin, Leprosy, lepromatous, Leprosy, Tuberculoid, Mycobacterium}, author = {Launois P and Vandenbussche P and M'Bayame N N and Drowart A and Van Vooren J P and Sarthou J L and Millan J and Huygen K}, title = {IL-6 production in response to purified mycobacterial heat-shock proteins and to antigen 85 in leprosy.}, abstract = {

IL-6 production was examined in PBMC cultures from healthy leprosy contacts and from leprosy patients stimulated with the purified mycobacterial 18-, 65-, and 70-kDa heat-shock proteins (hsp) and the secreted fibronectin-binding antigen 85 (Ag85). In lepromin-negative contacts, the 70-kDa hsp was the only antigen capable of eliciting significant IL-6 production. In lepromin-positive contacts, Ag85, the 65- and the 70-kDa hsp induced substantial IL-6 titers. IL-6 levels induced with the 70-kDa antigen were about fourfold higher than with the 65-kDa hsp or with Ag85. The 18-kDa antigen did not induce any IL-6 in these healthy contacts. PBMC from tuberculoid leprosy patients produced even more elevated levels of IL-6, and PBMC from lepromatous leprosy patients produced extremely high levels of IL-6. All antigens were capable of inducing IL-6 in leprosy patients. Highest levels were found in cultures stimulated with the 65-kDa hsp, and lowest levels were in cultures stimulated with the 18-kDa hsp.

}, year = {1993}, journal = {Cellular immunology}, volume = {148}, pages = {283-90}, month = {1993 May}, issn = {0008-8749}, doi = {10.1006/cimm.1993.1112}, language = {eng}, }