REGULATION OF SIGNALING BY RECEPTOR TYROSINE KINASES IN HELA-CELLS INVOLVES THE Q-BASE

被引：17

作者：

LANGGUT, W

机构：

[1] Univ Erlangen Nurnberg, Fak Med, Inst Biochem, D 91054 Erlangen

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 1995年 / 207卷 / 01期

关键词：

D O I：

10.1006/bbrc.1995.1188

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：

The nutrition factor queuine (q; the q-base) is a modulator of mammalian cell proliferation: it can be inhibitory or stimulatory, depending on the metabolic state of the cell. The mechanism underlying this growth-modulating activity was investigated. It was found that the q-base acts antagonistic to epidermal growth factor (EGF) but synergistic with platelet-derived growth factor (PDGF) in HeLa cells. Binding of either growth factor to its receptor resulted in the activation of distinct cellular kinases. The activities of these kinases were profoundly affected by q. The results suggest that the q-base is involved in the homologous regulation of signalling by receptor tyrosine kinases. (C) 1995 Academic Press, Inc.

引用

页码：306 / 311

页数：6

共 17 条

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