Lack of effect of LTB4 on human natural killer cell activity and T lymphocyte transformation.

Abstract:

:Human natural killer (NK) cell activity was not significantly affected by leukotriene (LT) B4 over a wide concentration range (10(-6)-10(-14) M), whether added directly to the NK cell assay or after preincubation of effector cells for 2 h with the drug before addition of Cr labelled K562 target cells. In addition, LTB4 did not affect the kinetics of NK cell mediated cytotoxicity. Addition of LTB4 (10(-6)-10(-10) M) to concanavalin A (Con A) or phytohaemagglutinin (PHA)-stimulated human peripheral blood mononuclear cells (PBMC) had no significant effect on proliferation measured by tritiated thymidine incorporation, using both optimal and sub-optimal mitogen concentrations. Whilst it is clear that LTB4 is an important mediator of inflammation involving polymorphonuclear (PMN) leukocytes in vivo, it does not affect NK cell or T cell function in vitro.

journal_name

Immunol Lett

journal_title

Immunology letters

authors

Hall TJ,Brostoff J

doi

10.1016/0165-2478(85)90003-3

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

255-8

issue

5

eissn

0165-2478

issn

1879-0542

pii

0165-2478(85)90003-3

journal_volume

9

pub_type

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