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Cell-mediated immunity to Moloney sarcoma virus in mice. II. Analysis of antigenic specificities involved in T lymphocyte-mediated in vivo rejection of murine sarcoma virus-induced tumors

✍ Scribed by R. M. Gorczynski; R. A. Knight

Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
814 KB
Volume
5
Category
Article
ISSN
0014-2980

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✦ Synopsis

Abstract

Sublethally irradiated BALB/c mice innoculated with Moloney sarcoma virus (MSV‐M) develop progressively growing tumors and die within 30 days of virus innoculation. These animals can be protected from tumor progression (and death) by innoculation of small numbers of MSV‐immune T lymphocytes from MSV‐M innoculated (but unirradiated) animals. T lymphocytes in these donor animals have been shown to express immunity to a variety of viral and virallyinduced antigens. We have investigated whether immunity to any one of these antigens was critically important in leading to protection of the irradiated animals by sesitizing normal T lymphocytes in vitro to different viral antigens and examining the ability of these sensitized cells to protect the irradiated recipients. Data is presented to show that cells sensitized in vitro to MSV‐transformed fibroblasts, and to purified antigens with group specificity, but not to viral envelope antigens, or whole virus, are capable of protecting the irradiated MSV innoculated animals.

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