ANTI-TUMOR IMMUNITY IN LYMPHOCYTE-B-DEPRIVED MICE .3. IMMUNITY TO PRIMARY MOLONEY SARCOMA VIRUS-INDUCED TUMORS
ANTI-TUMOR IMMUNITY IN LYMPHOCYTE-B-DEPRIVED MICE .3. IMMUNITY TO PRIMARY MOLONEY SARCOMA VIRUS-INDUCED TUMORS
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DOI:
10.1002/ijc.2910290320
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发表时间:
1982-01-01
影响因子:
6.4
通讯作者:
FELDMAN, M
中科院分区:
文献类型:
--
作者:
GORDON, J;HOLDEN, HT;FELDMAN, M
Tumor induction and immunity to tumors were studied following the injection of Moloney sarcoma virus (MSV) into mice in which B-lymphocyte functions had been suppressed by the chronic administration of anti-IgM antibodies. Two preparations of MSV were used: one gives rise to tumors which uniformly regress in normal adult mice, and another elicits progressively growing tumors in the majority of recipients. The tumor incidence, mean tumor size and tempo of regression were not modified by treatment with anti-IgM. Whereas tumors induced by the regressor virus were all rejected in 19 NRG[normal rabbit globulin]-treated and 29 untreated recipients, continued growth was obtained in 2 of 23 B-lymphocyte-deprived mice. In 9 additional mice from this group, apparent rejection was followed by tumor recurrence at the site of the initial tumor. Continued growth was accompanied by widespread metastasis. These tumors were freely transplantable to normal syngeneic recipients. Metastasis and transplantability were also detected in 7 of 24 anti-IgM-treated mice given progressor virus but were not seen in the control animals. Recurrence and metastasis were obtained despite the presence of high levels of specific cytotoxic T lymphocytes in the spleen. B lymphocytes or their products play an essential role in host protection against MSV-induced tumors.