The Protein Synthesis Term Placenta Cell in Culture System

KONG, H., LIN, Y.C., YAMAGUCHI, M., SANBUISSHO, A., ZUSPAN, F.P., FURUHASHI, N. and YAJIMA, A. The Protein Synthesis of Human Full Term Placenta Cell in Monolayer Culture System. Tohoku J. Exp. Med., 1990,161(1), 43-47 Protein synthesis of human placenta from cesarean section was analyzed by SDS gel electrophoresis using full term cell culture system. The qualitative pattern of cytoskeletal proteins before and after culture was also examined. After trypsinization, cytotrophoblasts were cultured for 20 days in the humidified incubator of 5% COZ in 95% air. The confluency was obtained in 10 days after inoculation. The pattern of SDS-PAGE showed several protein bands including actin (43,000 Da) and desmin (55,000 Da) as major constituents of 12 and 20 day cultures. The significant differences between band appearances in samples before and after culturing were noted. The present results indicated that myosin may not be synthesized in high content, differing from previous observations. Cytoskeletal protein production seemed to be markedly enhanced in the cultured system protein synthesis ; placenta ; cell culture ; SDS-PAGE ; actin