MUSCARINIC RECEPTOR-MEDIATED INCREASE IN ZETA-PKC EXPRESSION IN SK-N-SH HUMAN NEUROBLASTOMA-CELLS

被引:7
作者
BAUMGOLD, J [1 ]
DYER, KD [1 ]
机构
[1] GEORGE WASHINGTON UNIV,MED CTR,DEPT PHARMACOL,WASHINGTON,DC 20037
关键词
PROTEIN KINASE C; MUSCARINIC RECEPTOR; NEUROBLASTOMA CELLS; WESTERN BLOT;
D O I
10.1007/BF00966807
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Anti-peptide antibodies specific for each protein kinase C (PKC) isozyme were used to screen SK-N-SH human neuroblastoma cells. These cells were found to express only alpha- and zeta-PKC. Stimulation of these cells with phorbol esters caused alpha- but not zeta-PKC to translocate from cytosolic to membrane fractions. Stimulation of these cells with carbachol, which releases inositol trisphosphate and diacylglycerol, caused a transient translocation of alpha-PKC but not of zeta-PKC. Carbachol did, however, cause a gradual increase in immunoreactive zeta-PKC which reached maximal values 10-20 min after stimulation. These results implicate zeta-PKC in a receptor-mediated signalling event.
引用
收藏
页码:135 / 138
页数:4
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