Continuous Expression of I-A Antigen by Peritoneal Macrophages From Mice Resistant to Mycobacterium bovis (Strain BCG)
- 1 November 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Leukocyte Biology
- Vol. 38 (5), 635-645
- https://doi.org/10.1002/jlb.38.5.635
Abstract
Monoclonal antibodies were used to monitor the expression of I-A antigen on the surface of macrophages obtained from mice immunized to Mycobacterium bovis (strain BCG). Unlike the transient nature of I-A expression by macrophages from Listeria-injected mice, peritoneal macrophages from mice injected 28 days previously with 104 BCG expressed I-A continuously. The continued expression was not due to the presence of antigen or of contaminating lymphocytes. When we compared the kinetics of I-A expression from different strains of mice, the continuous expression of I-A correlated with the genetic resistance of the mice to BCG. Macrophages from mice that were resistant to BCG expressed I-A continuously, while macrophages from BCG susceptible mice expressed I-A transiently. Injection of resistant mice with Salmonella typhimurium did not result in the induction of a population of macrophages that expressed I-A continuously. This suggests that the Bcg gene may not be the same as that responsible for resistance to Salmonella (Ity) or Leishmania (Lsh).Keywords
This publication has 5 references indexed in Scilit:
- H-2K-restricted granuloma formation by Ly-2+ T cells in antibacterial protection to facultative intracellular bacteria.The Journal of Immunology, 1985
- Adoptive protection of the Mycobacterium tuberculosis-infected lungCellular Immunology, 1984
- DEMONSTRATION OF ACQUIRED-RESISTANCE IN BCGR INBRED MOUSE STRAINS INFECTED WITH A LOW-DOSE OF BCG MONTREAL1984
- Regulation of macrophage populations. II. Synthesis and expression of Ia antigens by peritoneal exudate macrophages is a transient event.The Journal of Immunology, 1981
- Regulation of macrophage populations. I. Preferential induction of Ia-rich peritoneal exudates by immunologic stimuli.The Journal of Immunology, 1980