TY - JOUR T1 - Screening and Identification of Polypeptides Specifically Binding to Hepatoma Carcinoma Cells AU - Cao, Hong AU - Tian, Xiaofeng AU - Xu, Yuanjing AU - Wang, Xudong AU - Tian, Wulin AU - Wei, Ten AU - Fang, Xuedong AU - Xie, Guanghong JO - Journal of Animal and Veterinary Advances VL - 11 IS - 12 SP - 2166 EP - 2175 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.2166.2175 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.2166.2175 KW - Hepatoma carcinoma cells KW -targeted therapy KW -polypeptide KW -amino acid KW -liver cancer AB - To screen specific polypeptides binding to hepatoma carcinoma cells by using C7CTM Phage Display Peptide Library and carry out biological identification on their binding capacity. HL-7702 were used as the negative subtractive cells and HepG2 were used to screen as the target cells, 60 positive phage clones were randomly selected and cell-based ELISA was carried out to identify their binding activities to HepG2 cells. The positive clones were subjected to sequencing analysis, the polypeptides were synthesized, immunochemical and immunofluorescence analysis were also carried out for further identification. After four rounds of screening, significant enriching of phages appeared on the target cells HepG2; ELISA and immunochemical analysis were carried out, 18 positive phage clones with high binding capacity to hepatoma carcinoma cells were obtained from the randomly selected 60 phage clones, after sequencing and immunofluorescence identification, two polypeptides were confirmed having high affinity and their amino acid sequences had no homology. ER -