[Cell death of PC12 cell induced after HgCl2 exposure].

نویسندگان

  • Y Arai
  • S Tazima
  • N Shimojo
چکیده

目 的 作業現場での水銀への暴露 による神経系 の障害 は,産 業衛生上の問題 として取 り上げ られている1).水 銀 によ る神経系の障害発現 には神経細胞の脱落が関与 している ことが知 られている. PC12細 胞はラッ トの副腎よ り得 られた褐色細胞腫由 来の株化細胞で,神 経成長菌子(NGF)に 反応 して神 経突起の成長やカテコールア ミンの合成促進等の神経細 胞様分化を起こす ことが知 られ,神 経細胞 の分化機構の 研究等に多 く用 いられている細胞株 であ る2). 本研究 では, NGFに よって神経細 胞様 に分化 した PC12細 胞 を塩化第二水銀を添加 した培地中で培養 した ときに起 こる細胞死が, RNA合 成阻害剤,蛋 白合成阻 害剤もしくはエ ンドヌクレアーゼ阻害剤の添加で抑制で きるか否かを明 らかにする事 によ り,水 銀暴露 に よる PC12細 胞の細胞死が, NGF除 去 により観察で きるよ うな,細 胞死に先行する蛋白合成を必要 とする細胞死で あるか否かを検討 した. 方 法 今回使用 したPC12細 胞 は理化学 研究 所細胞 バ ンク より供与 された もの を, 10%牛 胎児血 清 を含む ダル ベ ッコ/ハ ム12 1:1(DF)培 地 中で継代 維持 して,

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عنوان ژورنال:
  • Sangyo eiseigaku zasshi = Journal of occupational health

دوره 37 4  شماره 

صفحات  -

تاریخ انتشار 1995