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以成年SD大鼠坐骨神经损伤后的远段为材料,以λgt11为载体,构建了SD大鼠损伤性坐骨神经的cD-NA基因文库。将文库以5×104/120mm培养皿的密度铺皿培养,8h后将印迹的硝酸纤维素膜与特异性65KD单克隆抗体混合物4℃孵育过夜。行免疫组化ABC反应,筛选4×105克隆后得到3个阳性信号点。挑出相应的克隆,进行第2、3轮筛选,得到表达65KD化学诱向因子的单克隆。该实验为基因水平研究周围神经再生发育提供依据
The cD-NA gene library of injured rat sciatic nerve in SD rats was constructed by using λgt11 as a vector in the distal part of sciatic nerve of adult SD rats. Libraries were plated at a density of 5 x 104/120 mm dishes and after 8 h the blotted nitrocellulose membranes were incubated with a specific 65 kD monoclonal antibody mixture overnight at 4 ° C. ABC immunohistochemical reaction, screening 4 × 105 clones obtained 3 positive signal points. The corresponding clones were picked out and the second and the third rounds of screening were carried out to obtain a single clone expressing the chemotactic factor of 65KD. This experiment provides the basis for the study of peripheral nerve regeneration and development at the gene level