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首页> 外文期刊>Molecular and Cellular Endocrinology >Identifying putative contraceptive targets by dissecting signal transduction networks in the epididymis using an in vivo electroporation (electrotransfer) approach.
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Identifying putative contraceptive targets by dissecting signal transduction networks in the epididymis using an in vivo electroporation (electrotransfer) approach.

机译:通过使用体内电穿孔(electrotransfer)方法解剖附睾中的信号转导网络来确定推定的避孕目标。

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摘要

Our studies have focused on understanding how the initial segment is regulated, in particular, by testicular luminal fluid factor(s). Our working hypothesis is that testicular luminal fluid growth factors, e.g. FGFs, regulate initial segment function via activation of signal transduction pathways and PEA3 family transcription factors. These, in turn, regulate downstream genes that are important for providing an appropriate fluid milieu for the protection and survival of sperm and the initial segment. To test this hypothesis and to look for potential contraceptive targets, we used an in vivo electroporation technique to introduce dominant-negative plasmids of FGF Receptor 1 and ERM into the initial segment of the rat epididymis. The levels of several putative downstream genes were estimated using quantitative-PCR (q-PCR). Data suggests that initial segment genes are regulated by 5alpha-reductase-dependent and -independent pathways and that multiple growth factor pathways are activated to coordinate the expression of these genes.
机译:我们的研究集中在理解初始部分是如何调节的,尤其是通过睾丸腔液因子调节的。我们的工作假设是睾丸腔液生长因子,例如FGF通过信号转导途径和PEA3家族转录因子的激活来调节初始区段的功能。这些反过来又调节下游基因,这些基因对于提供适当的液体环境对精子和初始区段的保护和存活很重要。为了验证这一假设并寻找潜在的避孕目标,我们使用了体内电穿孔技术,将FGF受体1和ERM的显性负性质粒引入大鼠附睾的初始区域。使用定量PCR(q-PCR)估计了几种推定的下游基因的水平。数据表明,初始片段基因受5alpha-还原酶依赖性和非依赖性途径调节,并且多个生长因子途径被激活以协调这些基因的表达。

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