A multiple-parameter comparison of immunocompetence and tumor resistance in aged BALB/c mice

Several parameters of cell-mediated and humoral immunity were measured in young-adult and aged BALB/c mice and compared with resistance to the ascites from of intraperitoneal induced P815 mastocytoma. It was found that the age-related decline of in vitro phytohemagglutinin (PHA) responsiveness by sp...

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Bibliographic Details
Published inMechanisms of ageing and development Vol. 6; no. 1; pp. 15 - 24
Main Authors Perkins, Eugene H., Cacheiro, Lucia H.
Format Journal Article
LanguageEnglish
Published Ireland Elsevier Ireland Ltd 1977
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Summary:Several parameters of cell-mediated and humoral immunity were measured in young-adult and aged BALB/c mice and compared with resistance to the ascites from of intraperitoneal induced P815 mastocytoma. It was found that the age-related decline of in vitro phytohemagglutinin (PHA) responsiveness by spleen cells approximated the marked decrease of old mice to tumor-cell challenge and approached that characteristically seen in humoral immunity. Thus, decreased PHA responsiveness of splenic lymphocytes provided as sensitive an estimate of the age-related decline of immunocompetence in old mice as other classical parameters of cell-mediated immunity ( e.g.-graft- versus-host reaction or in vivo cellular proliferation of parental spleen cells in lethally-irradiated F 1 recipients). Results could be interpreted to represent a decreased ability of noncycling T-cells to be released to a functional cycling state.
ISSN:0047-6374
1872-6216
DOI:10.1016/0047-6374(77)90003-3