Effect of ligustrazine on protein kinase C signaling pathway in human peripheral blood lymphocytes / 中国病理生理杂志
Chinese Journal of Pathophysiology
; (12)1986.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-520661
Responsible library:
WPRO
ABSTRACT
AIM:
To investigate whether Ligustrazine(LTZ) has an effect on the changes of protein kinase C(PKC) signaling pathway induced by inflammatory mediators involved in asthma in normal human peripheral blood lymphocytes (PBL).METHODS:
10 mL peripheral venous blood was obtained from each of 63 health humans and treated as follows. The activities of PKC from cytosolic and membrane fractions in PBL were measured by -ATP-catalyzing assay, after PBL had been isolated and performed by following processes (1) First three groups treated with 5 g/L LTZ(n=6) or 5 ?mol/L Ro31-8220 (n=6); Paired untreated PBL served as control of this group, as well as the negative controls of the following groups(n=6); (2)Second three groups treated with 100 nmol/L Methacholine (Mch, n=5), 5 g/L LTZ+100 nmol/L Mch(n=5)or 5 ?mol/L Ro31-8220(a PKC inhibitor)+100 nmol/L Mch(n=5); (3)Third three groups treated with 100 nmol/L histamine, 5 g/L LTZ+100 nmol/L histamine(n=5) or 5 ?mol/L Ro31-8220+100 nmol/L histamine(n=5); (4)Fourth three groups treated respectively with 100 nmol/L PMA(a PKC activator, n=5), 5 g/L LTZ+100 nmol/L PMA(n=5) or 5 ?mol/L Ro31-8220+100 nmol/L PMA(n=5).RESULTS:
(1)LTZ had no effect on the activities of PKC in inactive PBL in normal humans; (2) Methacholine or histamine resulted in an increase in membrane PKC activity of normal human PBL, which was partly suppressed by LTZ (all P
Full text:
Available
Database:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Pathophysiology
Year:
1986
Document type:
Article