Neonatal susceptibility to MHV3 infection in mice. I. Transfer of resistance.
Up to 3 weeks of age, mice of the resistant A/J strain are fully susceptible to mouse hepatitis virus type 3 infection (MHV3). Immune deficiency, however, resulting from neonatal thymectomy or long term ALS administration led A/J animals to remain susceptible when tested at adult age. Whole spleen cells transferred from normal adult A/J donor mice protected suckling syngeneic recipients from i.p. infection with MHV3. Such a protective capacity of spleen cells was abolished after treatment with anti-theta serum and complement. Spleen cell separation by means of adherence to plastic also showed that neither the nonadherent nor the adherent populations injected separately were able to confer resistance to young mice challenged with the virus. Protection was not achieved with peritoneal cells originating from adult syngeneic animals. Transfer of resistance to MHV3 was obtained, however, when peritoneal cells were associated with adherent spleen cells. This study indicated that two types of mature cells, at least, were required for transferring MHV3 resistance into newborn mice of the A/J strain: T lymphocytes and an adherent spleen cell population.[1]References
- Neonatal susceptibility to MHV3 infection in mice. I. Transfer of resistance. Levy-Leblond, E., Dupuy, J.M. J. Immunol. (1977) [Pubmed]
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