
Overview:
PDE2A is a member of the cyclic nucleotide phosphodiesterase family. PDE2A is a cGMP-specific phosphodiesterase and hydrolyzes cGMP to 5'-GMP. TNFa stimulation of cells leads to an increase in PDE2A expression in a p38 mitogen-activated protein kinase (MAPK)-dependent manner (1). TNFa-mediated up-regulation of PDE2A may destabilize endothelial barrier function in sepsis. In addition, selective PDE2A up-regulation sensitizesendothelial cells toward the permeability-increasing agent thrombin (2). Furthermore, PDE2A inhibition is effective in preventing thrombin-induced lung edema.
Gene Aliases:
PDE2A1; PED2A4
Genbank Number:
NM_002599
References:
1. Seybold J, et al: Tumor necrosis factor-alpha-dependent expression of phosphodiesterase 2: role in endothelial hyperpermeability. Blood. 2005 May 1;105(9):3569-76. 2. Diebold I, et al: Phosphodiesterase 2 mediates redox-sensitive endothelial cell proliferation and angiogenesis by thrombin via Rac1 and NADPH oxidase 2. Circ Res. 2009 May 22;104(10):1169-77.
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实验非常不顺,想构建CDNA文库,但是从mRNA开始屡次失败,考虑主要是纯化过程中损失过多。想从总RNA入手,但是不知道实验步骤。不知那位大侠能提供总RNA建库的实验步骤。另外我现在手头有OligoDT,RT酶,苦于没有第二连合成试剂盒,不知道能否用普通PCR试剂盒Teq酶替代第二链合成过程中的DNA聚合酶I。好像有种方法合成第二链时,不需要另外的引物,利用降解的RNA作引物即可,我想直接设定PCR两个循环,合成第二链,不知方法可行否?愁啊,等着毕业,时间紧急,恳请帮忙。谢谢。

