Decline of natural cytotoxicity of human lymphocytes following infection with human T-cell leukemia/lymphoma virus (HTLV).

Abstract:

:Cell-mediated natural cytotoxicity (CMNC) of fresh or long-term cultured lymphocytes collected from HTLV-positive patients or infected in vitro with the virus, was tested against K562 target cells. Severe depression of reactivity was found in fresh lymphocytes of three patients with advanced disease, in 12 in vitro established T-cell malignant lines, and two HTLV-infected cord blood (C5/MJ and C91/PL) lines. Moreover, all (eight) HTLV-1 infected cell lines listed showed a significant inhibition of CMNC of peripheral blood lymphocytes of healthy donors. Whether virus infection promotes the outgrowth of pre-existing suppressor cells and/or produce changes of the T-lymphocyte function is unknown.

journal_name

Leuk Res

journal_title

Leukemia research

authors

De Vecchis L,Graziani G,Macchi B,Grandori C,Pastore S,Popovic M,Gallo RC,Bonmassar E

doi

10.1016/0145-2126(85)90056-6

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

349-55

issue

3

eissn

0145-2126

issn

1873-5835

pii

0145-2126(85)90056-6

journal_volume

9

pub_type

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