Anti-phospholipase C antibodies inhibit the lectin-induced proliferation of human lymphocytes.

Abstract:

:A novel approach was used to assess the role of phosphoinositide hydrolysis in the mitogenic action of phytohemagglutinin (PHA) or concanavalin A (ConA). The treatment of human peripheral blood leukocytes (PBL) with monospecific antibodies against phospholipase C (PLC) produced a dose-dependent inhibition (up to 100%) of PHA (10 micrograms/ml) or ConA (25 micrograms/ml) proliferative effects. Thus, the activation of membrane-bound PLC is a sine-qua-non condition for lectin-induced proliferation of T lymphocytes. The key-role of PLC versus protein kinase C (PKC) is stressed by the fact that the inhibition of PKC with Hidaka's compound H-7 (40 microM) produced only a partial blockade (about 25%) of lectin mitogenic effect.

journal_name

Biosci Rep

journal_title

Bioscience reports

authors

Moraru II,Manciulea M,Călugăru A,Ghyka G,Popescu LM

doi

10.1007/BF01116866

subject

Has Abstract

pub_date

1987-09-01 00:00:00

pages

731-6

issue

9

eissn

0144-8463

issn

1573-4935

journal_volume

7

pub_type

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