首页> 外文期刊>Life sciences >BASIC FIBROBLAST GROWTH FACTOR-INDUCED GLYCOSAMINOGLYCAN PRODUCTION IN CULTURED VASCULAR ENDOTHELIAL CELLS RESULTS FROM ENHANCED PROTEIN SYNTHESIS MEDIATED BY THE LIPOXYGENASE PATHWAY
【24h】

BASIC FIBROBLAST GROWTH FACTOR-INDUCED GLYCOSAMINOGLYCAN PRODUCTION IN CULTURED VASCULAR ENDOTHELIAL CELLS RESULTS FROM ENHANCED PROTEIN SYNTHESIS MEDIATED BY THE LIPOXYGENASE PATHWAY

机译:脂氧合酶途径介导的蛋白质合成增强导致碱性成纤维细胞生长因子诱导培养的血管内皮细胞中糖胺聚糖的产生

获取原文
获取原文并翻译 | 示例
           

摘要

To investigate the intracellular regulation of glycosaminoglycan (GAG) production induced by basic fibroblast growth factor (bFGF), bovine aortic endothelial cells were cultured with recombinant human bFGF in the presence of [H-3]glucosamine or [S-35]sulfate. It was shown that bFGF-induced incorporation of the radioactive precursors into GAGs was diminished by lipoxygenase inhibitors, nordihydroguaiaretic acid (NDGA) and esculetin, but not by a cyclooxygenase inhibitor indomethacin. A protein synthesis inhibitor cycloheximide also diminished the enhancement of the [H-3]glucosamine incorporation by bFGF. On the other hand, the incorporation of [C-14]leucine into the acid-insoluble fraction was strongly inhibited by NDGA but not by indomethacin in the presence or absence of bFGF. It was also shown that bFGF significantly increased the incorporation of [C-14]xylose into GAGs. The present data suggested that bFGF may increase the number of GAG chains as a result of enhanced protein synthesis including xylosyl transferase through the lipoxygenase pathway of arachidonic acid metabolism in vascular endothelial cell layer. [References: 32]
机译:为了研究碱性成纤维细胞生长因子(bFGF)诱导的糖胺聚糖(GAG)产生的细胞内调节,在[H-3]葡萄糖胺或[S-35]硫酸盐存在下,用重组人bFGF培养牛主动脉内皮细胞。结果表明,脂氧合酶抑制剂,去甲二氢愈创木酸(NDGA)和七叶皂苷减少了bFGF诱导的放射性前体掺入GAG中,但环氧合酶抑制剂吲哚美辛却没有。蛋白质合成抑制剂环己酰亚胺也减少了bFGF对[H-3]葡糖胺掺入的增强作用。另一方面,在存在或不存在bFGF的情况下,NDGA强烈抑制[C-14]亮氨酸掺入酸不溶级分,但吲哚美辛则没有。还显示出bFGF显着增加了[C-14]木糖向GAG中的掺入。目前的数据表明,bFGF可能通过增强蛋白合成而增加GAG链的数量,包括通过血管内皮细胞层中花生四烯酸代谢的脂氧合酶途径的木糖基转移酶。 [参考:32]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号