Prostaglandin F2α, E2, D2, J2によるヒト子宮内膜腺癌培養細胞増殖抑制効果の比較研究

概要

論文の詳細を見る
Effects of prostaglandin F2α, E2, D2 and J2 on the DNA and RNA contents of a human endometrial cancer cell lines (SNG and Ishikawa) were studied using flow cytometry. 1) Cytotoxic effects of various prostaglandins on SNG and Ishikawa cell lines were examined and PG J2 and PG D2 were found most active. Among other prostaglandins PG E2 showed a comparable inhibitory activity to cellular growth but PG F2α didn't. 2) In SNG and Ishikawa cell lines after RNase treatment, PG J2, PG D2 and PG E2 caused a decrease of the S-phase and G2 M-phase cell population in cell cycle. On the other hand, PG F2α caused a increase of the S-phase cell population in cell cycle. Prostaglandins were found that G0+1-phase cell population in cell cycle increased. 3) PG J2, PG D2 and PG E2 after DNase treatment caused a decrease of the relative RNA content in both of cell lines. On the other hand, PG F2α caused a increase of the relative RNA content. It is a noteworthy that PG J2 and PG D2 were remarkably recognized delay of doubling time and decrease of survival fraction under the time and dose dependence. These effects occure not only by direct lethal influence of the prostaglandins, but also by substantially inhibit RNA and DNA synthesis with a delay of the cell cycle. These results might be suggested a role for prostaglandin J2 and D2 in the regulation of growth of endometrial adenocarcinoma cells.
一般社団法人日本内分泌学会の論文