DEMONSTRATION OF ACQUIRED-RESISTANCE IN BCGR INBRED MOUSE STRAINS INFECTED WITH A LOW-DOSE OF BCG MONTREAL
- 1 January 1984
- journal article
- research article
- Vol. 56 (1), 81-88
Abstract
The relationship between natural resistance to Mycobacterium bovis BCG, expressed by the Bcg gene, and the generation of acquired resistance to this infection in various selected inbred strains of mice was investigated. Consistent with previous findings, a low dose (.apprx. 104) of BCG Montreal grew progressively in the spleens of inbred mouse strains previously designated susceptible to BCG (Bcgs), but grew poorly in resistant strains (Bcgr). In contrast, little difference was observed in the growth of the organism in the liver or lungs of these mice, whereas all animals behaved as Bcgs when infected with the World Standard preparation of BCG, BCG Pasteur. Four strains tested (Bcgr; A/J, C3H/HeJ and Bcgs; B10,A/J, BALB/c) all showed evidence of the generation of acquired resistance to a small inoculum of BCG Montreal, as demonstrated by their substantial protection against a subsequent i.v. challenge with virulent M. tuberculosis. These findings are interpreted as being inconsistent with the Bcg gene hypothesis and call into doubt the usage of the term Bcg as a gene designation.This publication has 10 references indexed in Scilit:
- Resistance of various strains of mycobacteria to killing by activated macrophages in vivo.The Journal of Immunology, 1983
- Immunopathology of BCG infection in genetically resistant and susceptible mouse strains.The Journal of Immunology, 1982
- Resistance and Susceptibility of Mice to Bacterial Infection. IV. Genetic and Cellular Basis of Resistance to Chronic Infection with Brucella abortusThe Journal of Infectious Diseases, 1982
- Genetic regulation of resistance to intracellular pathogensNature, 1982
- Genetic control of natural resistance to Mycobacterium bovis (BCG) in mice.The Journal of Immunology, 1981
- NATURAL-RESISTANCE TO SALMONELLA-TYPHIMURIUM IN DIFFERENT INBRED MOUSE STRAINS1979
- REGULATION OF LEISHMANIA POPULATIONS WITHIN HOST .1. VARIABLE COURSE OF LEISHMANIA-DONOVANI INFECTIONS IN MICE1977
- The effect of cultural conditions on the distribution of Mycobacterium tuberculosis in the spleens and lungs of specific pathogen-free mice.Published by Elsevier BV ,1974
- Natural resistance to Salmonella infection, delayed hypersensitivity and Ir genes in different strains of miceNature, 1974
- The effect of inoculum size on the immune response to BCG infection in mice.1971