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Preparation, Imaging, and Quantification of Bacterial Surface Motility Assays
Published on: April 7, 2015
ミトーシスI中の表面機能:ファゴサイトーシス,ピノサイトーシス,表面に結合したCon Aの移動性
Cell
|October 1, 1978
まとめ
細胞内核細胞変異 (ファゴサイトーシトーシス,ピノサイトーシトーシスを含む) は,ミトーシス過程で著しく抑制される. この阻害は粒子の吸収と流体相プロセスに影響し,細胞シグナル伝達と新しく形成された細胞の特性に影響します.
科学分野:
- 細胞生物学 細胞生物学
- 分子生物学は分子生物学である.
背景:
- ファゴサイトーシスやピノサイトーシスのような細胞過程は,栄養素の吸収とシグナル伝達に不可欠です.
- ミトーシスには,細胞の再編成が大きくなり,膜動力学や内細胞経路に影響を及ぼす可能性があります.
研究 の 目的:
- 哺乳類の細胞におけるファゴサイトーシス,ピノサイトーシス,コンカナヴァリンA (ConA) の表面分布に対するミトーシスの影響を調査する.
- 特定のミトーシス・フェーズと,内細胞活動の変化と,膜に結合したCONAを相関させる.
主な方法:
- 染色剤 Hoechst 33258 を用いて染色体染色を行い,ミトーシス相を特定しました.
- オプソン化 (IgGコーティングされた赤血球) と非オプソン化 (ラテックスビーズ) の粒子を用いてファゴサイトーシスを評価した.
- ホーラーラディッシュペロキシダース吸収による液体ピノサイトーシスと,光ラベルを使用したConAの吸収性ピノサイトーシスを測定した.
主要な成果:
- オプソン化および非オプソン化粒子のファゴサイトーシスは,ミトーシス中に著しく減少します.
- 液体ピノサイトーシスは,J774およびCHO細胞のテロファーズを通して,中期プロファーズから抑制されます.
- コンカナヴァリンA (ConA) の内化が抑制され,ConAはミトーシス中に血に限定され,割れ目のに蓄積されます.
結論:
- 哺乳類の細胞ミトーシスでは,内細胞プロセスが著しく抑制されます.
- このエンドサイトーシスの抑制は,ミトーシス中の細胞活動を調節し,子細胞の特徴に影響を与える役割を果たす可能性があります.
- 観察されたConA再分布は,細胞分裂中の細胞膜のダイナミックな再編成を強調しています.
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The objective of phagocytosis is often destruction. Cells use phagocytosis to eliminate unwelcome visitors, like pathogens (e.g., viruses and bacteria). Many immune system cells, including...
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Cells use energy-requiring bulk transport mechanisms to transfer large particles or large numbers of small particles into or out of the cell. The cells envelop the particles in spherical membranes called vesicles or vacuoles. Vesicles that transport material into the cell are built from the cell membrane. These vesicles encapsulate external molecules and transport them into the cell in a process called endocytosis.
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