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. 1989 Aug;57(8):2475–2480. doi: 10.1128/iai.57.8.2475-2480.1989

Cellular immune responses of leprosy contacts to fractionated Mycobacterium leprae antigens.

S P Lee 1, N G Stoker 1, K A Grant 1, Z T Handzel 1, R Hussain 1, K P McAdam 1, H M Dockrell 1
PMCID: PMC313473  PMID: 2663725

Abstract

Antigens of armadillo-derived Mycobacterium leprae sonic extract were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and blotted onto a nitrocellulose membrane, and the unstained blot was converted into 20 fractions of antigen-bearing particles. These were tested in cellular proliferation assays, and reproducible results were obtained between batches of fractions. Peripheral blood mononuclear cells from healthy contacts of leprosy patients (presumed to have protective immunity) were tested with the fractions to investigate which antigens they recognized. A small group of tuberculoid leprosy patients were also tested. Both groups showed a wide range of responses. Almost every fraction stimulated proliferation with at least one donor, yet none was clearly immunodominant or inhibitory in either group. Thus, protective immunity did not appear to be associated with proliferation caused by any single fraction.

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Selected References

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