MECHANISMS OF IMMUNITY TO LEISHMANIASIS .3. THE DEVELOPMENT AND DECAY OF RESISTANCE DURING METASTATIC DISEASE
- 1 January 1980
- journal article
- research article
- Vol. 42 (2), 211-218
Abstract
The development and decay of systemic resistance were examined in guinea-pigs with progressive metastatic leishmaniasis. Adoptive cell transfer experiments revealed that a T cell-mediated immune response develops 2 wk after infection and confers a strong resistance to challenge on these animals, which is expressed up to 5 wk after initiation of infection. Beyond this time a decay of this resistance occurs. Loss of the ability to resist a challenge infection was not associated with a reduction in serum antibody levels, which remained high in animals expressing no systemic resistance. Cellular resistance could not be re-established in these animals by the infusion of immune lymphocytes from resistant donors. An examination of macrophage microbicidal capacity within metastatic and primary lesions revealed that progressive disease is associated with local suppression of macrophage effector function.This publication has 11 references indexed in Scilit:
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