
胰岛素样生长因子 - 百度百科
igf族有igf-Ⅰ和igf-Ⅱ两种。igf-Ⅰ的产生更依赖于gh,其促生长作用强,是儿童期的重要生长因子。各组织中合成的igf-Ⅰ多以自分泌或旁分泌方式发挥其促生长的作用,而肝脏所合成的igfⅠ则进入血循环,以内分泌方式作用于靶细胞。
Insulin-like growth factor 1 - Wikipedia
Insulin-like growth factor 1 (IGF-1), also called somatomedin C, is a hormone similar in molecular structure to insulin which plays an important role in childhood growth, and has anabolic effects in adults. [5]
Insulin-like growth factor - Wikipedia
Insulin-like growth factor 2 (IGF-2, at times IGF-II) is thought to be a primary growth factor required for early development while IGF-1 expression is required for achieving maximal growth. Gene knockout studies in mice have confirmed this, though other animals are likely to regulate the expression of these genes in distinct ways.
胰島素樣生長因子 - 维基百科,自由的百科全书
igf-1和igf-2会被一种名为igf结合蛋白的蛋白家族调控。 这些蛋白质可以用复杂的方式调节IGF,既包括通过阻断与IGF-1受体结合来抑制IGF,也包括通过辅助递送到受体和增加IGF半衰期来促进IGF。
IGF-2——被命名耽搁的神奇印记基因 - 搜狐
2022年6月1日 · 根据以往研究,IGF1R是一种跨膜酪氨酸蛋白激酶受体,其配体是相对广谱的,insulin、IGF-1和IGF-2均可结合IGF1R,激活其下游信号传导。与IGF-1相比,IGF-2与IR-A的亲和力更高,IR-A的激活是促进有丝分裂。
Understanding IGF-II Action through Insights into Receptor …
IGF-II is unique in that it can activate both IGF-1R and IR-A to promote cell growth and survival. However, of the three ligands, the molecular mechanisms underlying IGF-II action are the least understood. For this reason, this review will focus on IGF-II.
IGF 1 and IGF 2 - SpringerLink
2017年4月9日 · Insulin-like growth factor-1 (IGF-1) and IGF-2 are circulating peptide growth factor hormones important in normal growth and development. Their biological effects are mediated by specific cell surface receptors, the type I IGF receptor (IGF1R) and the insulin...
类胰岛素生长因子(IGF)到底是什么?有什么副作用? - 知乎
igf有 igf-1 和 igf-2 两种,igf-2主要对胎儿生长起作用,而儿童及成人体内起主要作用的、也是我们平常关注多的是igf-1,igf-1的产生依赖于 生长激素 水平,是生长激素刺激机体生长和代谢的主要调节因子。igf-1是一种生长激素介质,它是生长激素产生的生理过程中 ...
生长激素与胰岛素样生长因子-1检测的临床意义 - 健康界
2021年9月2日 · 胰岛素样生长因子-1 (Insulin-like growth factor,IGF-1) 是一种在人体内生长激素(GH)刺激下产生的激素,当垂体前叶分泌GH进入血液循环时,几乎数分钟内GH即可以在肝内促进肝脏细胞合成分泌IGF-1。 IGF-1是70个氨基酸的单链多肽,分子量7649,和胰岛素原有50%的序列相同。 生长激素的主要效应是通过IGF-1介导而起作用,IGF-1主要由肝脏细胞合成和分泌,一些局部组织,如神经组织、骨组织、肿瘤细胞等也能产生少量IGF-1,以自分泌、旁分 …
Insulin-like growth factors: Ligands, binding proteins, and …
The insulin-like growth factor family of ligands (IGF-I, IGF-II, and insulin), receptors (IGF-IR, M6P/IGF-IIR, and insulin receptor [IR]), and IGF-binding proteins (IGFBP-1-6) play critical roles in normal human physiology and disease states.