Abstract
Experimental transmission of adult T-cell leukemia (ATL) virus (ATLV) into human B lymphocytes was attempted. Cocultivation of B-cell rich fraction of peripheral blood from a healthy adult with X-ray irradiated ATLV producer MT-2 cells resulted in the establishment of OKA(B) cell line co-infected with both Epstein-Barr virus (EBV) and ATLV. OKA(B) cells and its subclones contained: (1) B cell markers exclusively; (2) both EBV-specific antigen, EBNA and ATLV-specific antigen, ATLA detected by immunofluorescence test; (3) ATLV-specific polypeptides, p24 and p19; (4) ATLV-specific mRNA in ATLA-positive clones; (5) ATLV and EBV particles detectable by electron microscopy. These data clearly show that human B lymphocytes are susceptible to ATLV infection.
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