THE REGULATION OF SODIUM-DEPENDENT TRANSPORT OF ANIONIC AMINO-ACIDS IN CULTURED HUMAN FIBROBLASTS

被引:6
|
作者
FRANCHIGAZZOLA, R [1 ]
VISIGALLI, R [1 ]
BUSSOLATI, O [1 ]
GAZZOLA, GC [1 ]
机构
[1] UNIV PARMA,IST PATOL GEN,I-43100 PARMA,ITALY
关键词
GROWTH FACTOR; PROLIFERATION; PKC; L-GLUTAMATE; L-ASPARTATE; HUMAN FIBROBLAST;
D O I
10.1016/0014-5793(94)00929-5
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
In cultured human fibroblasts the transport of anionic amino acids through the sodium-dependent system X(AG)(-) is stimulated rapidly and transiently by phorbol 12,13-dibutyrate. Transport stimulation is consistent with an effect due to the activation of protein kinase C. Bradykinin (1 mu M) and PDGF-AA (100 ng/ml) also stimulate the activity of system X(AG)(-). The bradykinin effect appears to be fully dependent upon PKC activation whereas the stimulation of aspartate transport by PDGF-AA is also due to PKC-independent mechanisms.
引用
收藏
页码:109 / 112
页数:4
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