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© Research
Publication : Microbes and infection / Institut Pasteur

Towards an immunodiagnostic test for leprosy

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Microbes and infection / Institut Pasteur - 26 May 2006

Aráoz R, Honoré N, Banu S, Demangel C, Cissoko Y, Arama C, Uddin MK, Hadi SK, Monot M, Cho SN, Ji B, Brennan PJ, Sow S, Cole ST

Link to Pubmed [PMID] – 16797206

Microbes Infect. 2006 Jul;8(8):2270-6

In addition to multidrug therapy, elimination of leprosy requires improved diagnostic methods. Using a comparative genomics approach, 17 potential protein antigens (MLP) that are restricted to Mycobacterium leprae, or of limited distribution, were produced and tested for antigen-specific immune responses on leprosy patients, healthy contacts of leprosy patients, and tuberculosis patients in Mali and Bangladesh, as well as on non-endemic controls. T-cell antigenicity of MLP was confirmed by IFN-gamma production in whole-blood assays with the highest responses observed in paucibacillary leprosy patients and healthy contacts. Four MLP behaved well in both countries and induced significantly different responses between the study groups. Peptides carrying T cell epitopes from one of the antigens gave promising results in restimulation assays in mice and immune responses were not influenced by prior exposure to BCG or environmental mycobacteria. This study provides the immunological framework for the development of a specific, peptide-based immunodiagnostic test for leprosy.

http://www.ncbi.nlm.nih.gov/pubmed/16797206