Abstract
Using peritoneal macrophage cultures it was found that both PRI mice and their macrophages in culture were susceptible to mouse hepatitis virus and that C3H mice and macrophages were resistant. All F1 macrophages and some back-cross cell cultures were susceptible. The degeneration of F1 and back-cross macrophages obtained either from adult mouse peritoneal exudate or newborn mouse liver, occurred more slowly than PRI macrophages. Segregation of susceptibility occurred in the first back-cross generation. Tests of three back-cross generations from susceptible mice yielded about one-quarter of the mice shown to be susceptible either by direct test or test of their macrophages. A clear correlation between susceptibility in vivo and in vitro was established both in the test of the percentage segregation and in tests of individual back-cross mice. A small series of tests, however, indicated that 50 per cent of the back-cross mice had the genetic capacity to transmit susceptibility. Thus a hypothesis of two genes for susceptibility, although not excluded, may yield to a hypothesis of a single dominant gene, incompletely expressed. Resistant cells were converted into susceptible cells by ingestion of a relatively large particle containing a heat-stable substance. This susceptibility, although complete, was temporary. The nature of the factor causing the change has been discussed.
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Selected References
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- BANG F. B., WARWICK A. Macrophages and mouse hepatitis. Virology. 1959 Dec;9:715–717. doi: 10.1016/0042-6822(59)90166-7. [DOI] [PubMed] [Google Scholar]
- Bang F. B., Warwick A. MOUSE MACROPHAGES AS HOST CELLS FOR THE MOUSE HEPATITIS VIRUS AND THE GENETIC BASIS OF THEIR SUSCEPTIBILITY. Proc Natl Acad Sci U S A. 1960 Aug;46(8):1065–1075. doi: 10.1073/pnas.46.8.1065. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GLEDHILL A. W., ANDREWES C. H. A hepatitis virus of mice. Br J Exp Pathol. 1951 Dec;32(6):559–568. [PMC free article] [PubMed] [Google Scholar]
- GOODMAN G. T., KOPROWSKI H. Macrophages as a cellular expression of inherited natural resistance. Proc Natl Acad Sci U S A. 1962 Feb;48:160–165. doi: 10.1073/pnas.48.2.160. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GOODMAN G. T., KOPROWSKI H. Study of the mechanism of innate resistance to virus infection. J Cell Comp Physiol. 1962 Jun;59:333–373. doi: 10.1002/jcp.1030590313. [DOI] [PubMed] [Google Scholar]
- HOLLAND J. J., McLAREN L. C., SYVERTON J. T. The mammalian cell-virus relationship. IV. Infection of naturally insusceptible cells with enterovirus ribonucleic acid. J Exp Med. 1959 Jul 1;110(1):65–80. doi: 10.1084/jem.110.1.65. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HOLLAND J. J., McLAREN L. C. The location and nature of enterovirus receptors in susceptible cells. J Exp Med. 1961 Aug 1;114:161–171. doi: 10.1084/jem.114.2.161. [DOI] [PMC free article] [PubMed] [Google Scholar]
- KANTOCH M., BANG F. B. Conversion of genetic resistance of mammalian cells to susceptibility to a virus infection. Proc Natl Acad Sci U S A. 1962 Sep 15;48:1553–1559. doi: 10.1073/pnas.48.9.1553. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MOSLEY J. W. Multiplication and cytopathogenicity of mouse hepatitis virus in mouse cell cultures. Proc Soc Exp Biol Med. 1961 Nov;108:524–529. doi: 10.3181/00379727-108-26986. [DOI] [PubMed] [Google Scholar]
- MOUNTAIN I. M., ALEXANDER H. E. Infectivity of ribonucleic acid from type I poliovirus in embryonated egg. Proc Soc Exp Biol Med. 1959 Jul;101(3):527–532. doi: 10.3181/00379727-101-25005. [DOI] [PubMed] [Google Scholar]
- NIU M. C., CORDOVA C. C., NIU L. C. Ribonucleic acid-induced changes in mammalian cells. Proc Natl Acad Sci U S A. 1961 Oct 15;47:1689–1700. doi: 10.1073/pnas.47.10.1689. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sabin A. B. Nature of Inherited Resistance to Viruses Affecting the Nervous System. Proc Natl Acad Sci U S A. 1952 Jun;38(6):540–546. doi: 10.1073/pnas.38.6.540. [DOI] [PMC free article] [PubMed] [Google Scholar]
- WAHL R., FOUACE J. [Phenotypic unstable resistance to erythromycin in Staphylococcus pyogenes]. Ann Inst Pasteur (Paris) 1961 Nov;101:722–737. [PubMed] [Google Scholar]
