Suppression of natural cytotoxic activity of lymphocytes from cattle and sheep during the progress of bovine leukosis.

作者: S. Yamamoto , M. Onuma , H. Kodama , T. Mikami , H. Izawa

DOI: 10.1016/0378-1135(84)90025-7

关键词:

摘要: Peripheral blood lymphocytes (PBL) from cattle and sheep exhibited natural cytotoxicity on a fetal lamb kidney (FLK) cell line that was persistently infected with bovine leukemia virus (BLV) by 20-h 51Cr release assay. This cytotoxic activity tested using PBL normal or BLV-infected animals. Although also found in animals BLV-infected, but clinically healthy animals, the persistent lymphocytosis leukemic markedly decreased. The of 3 sequentially before during disease to decrease gradually progress disease, finally no at time death due leukemia. These results suggest may have role immunosurveillance for tumor.

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