極性と微分遺伝は,生命の普遍的な属性ではないか?
1Department of Microbiology, Center for Cell Signaling, University of Virginia School of Medicine, Charlottesville, VA 22908-0577, USA. igm9c@virginia.edu
Cell
|December 2, 2008
まとめ
細胞の偏極化は,損傷した成分を分離することによって,細胞の老化を管理するために進化した可能性が高い. この基本的なプロセスは,複雑な生物における細胞の分化と発達に極めて重要です.
科学分野:
- 細胞生物学 細胞生物学
- 進化生物学の進化生物学について
- 発達生物学 発達生物学について
背景:
- 細胞の二極化は,細胞の基本的なプロセスです.
- その進化的起源と多様な機能は,活発な研究分野である.
研究 の 目的:
- 細胞の偏極化の進化的起源を探求するために.
- 異なる生物における細胞極性の多様な役割を理解する.
主な方法:
- バクテリアと酵母菌における細胞分裂の比較分析.
- 複雑な多細胞生物における極性関数の検討.
主要な成果:
- 証拠によると,細胞の偏極化は,損傷した物質を分離するために進化し,分裂中に老化を1つの子細胞に制限しました.
- ユカリオットでは,極性により,細胞分化と形態変異に不可欠な細胞成分の微分継承が容易になります.
結論:
- 細胞の極化には古代の起源があり,当初は細胞の老化を管理するのに役立っていました.
- その機能は多様化し,複雑な生命体における発達と細胞型生成において重要な役割を果たしています.
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