[Identification of HTLV-I markers in patients with hemoblastoses]. / Vyiavlenie markerov HTLV-I u bol'nykh s gemoblastozami.

Serologic and molecular biologic techniques were used to identify association of HTLV-1 with adult T-cell leukemia/lymphoma as well as with B-cell leukemia. HTLV-1 markers (antibodies and integrated provirus) were identified in all lympho- and myeloproliferative diseases, while integrated provirus genome--in T-cell population only.

[Effect of allogeneic tumor extracts on the development in calves of an experimental infection by the bovine leukemia virus]. / Izuchenie vliianiia ékstraktov allogennykh opukholei na razvitie u teliat éksperimental'noi infektsii virusom leikoza krupnogo rogatogo skota.

The allogenic tumour extracts were studied as immunogens for the prevention of cattle infection with BLV. Immunization did not induce both the production of antibodies against the virus and spontaneous viral infection. Experimental infection of immunized animals with living leukocytes of a leukemic donor caused a BLV infection in 100% of cases.

[Detection of viral particles in the blood lymphocytes of a patient with T-cell acute lymphoblastic leukemia]. / Vyiavlenie virusnykh chastits v limfotsitakh krovi bol'nogo T-kletochnym ostrym limfoblastnym leikozom.

The electron microscopic examinations of the short-term cultures of mononuclear cells from patients with T-cell acute lymphoblastic leukemia were conducted for the detection of viral particles. The viral particles which correspond in their morphology to C type retroviruses are observed in the intercellular space of the culture.

[Experimental induction of lympholeukemia in calves by a purified preparation of bovine leukemia virus]. / Eksperimental'noe vosproizvedenie limfoleikoza u teliat preparatom ochishchennogo virusa leikoza krupnogo rogatogo skota.

The leukemogenic properties of bovine leukemia virus (BLV), isolated from blood plasma, milk and short-term cultures of blood-circulating leukocytes were studied. A complex life-time examination of 14 calves inoculated with a preparation of BLV established leukemia in 4 animals; it was suspected in 3 calves. By the present time leukemia has been morphologically established in 6 out of 13 calves and one was a suspect. Positive results point directly to the viral etiology of bovine leukemia.