Abstract:
:In vitro lymphocyte stimulation was performed on peripheral blood lymphocytes from 48 leprosy patients, 15 healthy contacts of leprosy patients, and 16 normal controls who lived in a leprosy-free area and who had not been exposed to leprosy. Tuberculin PPD and an antigen fraction. MLW 1, prepared from M. leprae, were used as stimulants. The MLW 1 preparation contained one antibody-precipitable component when tested in crossed immunoelectrophoresis against a polyvalent anti-M. leprae immunoglobulin preparation, namely the ML 7 antigen. MLW 1 induced strong lymphocyte responses in patients with tuberculoid leprosy and healthy contacts of leprosy patients, but only a weak or no responses in lepromatous leprosy patients and non-exposed controls. A marked depression of the response to tuberculin PPD was observed in lepromatous leprosy patients. The specificity of the MLW 1 antigen is discussed, and a new estimator of specific lymphocyte stimulation, the delta cpm', is introduced.
journal_name
Scand J Immunoljournal_title
Scandinavian journal of immunologyauthors
Closs O,Reitan LJ,Negassi K,Harboe M,Belehu Adoi
10.1111/j.1365-3083.1982.tb00704.xsubject
Has Abstractpub_date
1982-08-01 00:00:00pages
103-15issue
2eissn
0300-9475issn
1365-3083journal_volume
16pub_type
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