Human mammary carcinoma cell line: infection by an avian myxovirus as a prerequisite for immunopotentiation.
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Biomedical subjects
Publications and source records attributed to C Sauter.
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An avian influenza A virus which grows well in human leukemic myeloblasts was unable to replicate in normal human leukocytes. The virus adhered during the first hours of incubation to plastic surfaces and to leukocytes and was then released into the supernatant; care should be taken not to confuse this with viral growth.
In view of the possible use of viruses for the immunotherapy of breast cancer, the replication of a strain of fowl plaque virus was studied in the tumor cells of 11 mammary carcinoma patients with malignant effusions. The tumor cells were obtained by centrifugation on iodamide solutions, then cultured in vitro, and infected by a fowl plaque virus previously adapted to grow in a mammary carcinoma cell line. Virus multiplication was observed in all cases, a prerequisite for the use of autologous viral oncolysates for immunotherapy in mammary carcinoma patients.
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Twelve AML patients in relapse were treated with cytosine arabinoside (Ara-C), VP 16-213, vincristine, and vinblastine (A-triple-V). For bone marrow (BM) evaluation, in vitro granulopoiesis by agar and liquid cultures was investigated. In 15 treatments, 12 complete remissions (CR) were observed. Three patients, treated with 2 A-triple-V cycles achieved CR twice. One to four months after treatment normal colony formation and cell differentiation was found in remission patients. Evidence of sustained recovery was obtained in sequential studies of BM cultures of patients in CR. These results indicate that-A-triple-V treatment does not irreversibly deplete normal myeloid progenitor cell population.