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関連する概念動画

Introduction to the Cytoskeleton01:33

Introduction to the Cytoskeleton

24.8K
Overview of the Cytoskeleton
The cytoskeleton is a network of protein filaments present within the cell, having three distinct filaments ̶   microfilaments, microtubules, and intermediate filaments. Each has characteristic features that distinguish them, including the dynamics of their assembly and disassembly, mechanical properties, polarity, and the type of molecular motors associated with them. Earlier, they were thought to be present only in eukaryotic cells; however, their...
24.8K
Adaptability of Cytoskeletal Filaments01:12

Adaptability of Cytoskeletal Filaments

5.7K
The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments in the cytoskeleton determines their ability to perform various functions within the cell. It can undergo rapid reorganization during processes like cell division or remain stable for several hours as in the interphase. The adaptability of these filaments depends on stringent regulatory mechanisms. The microfilament and microtubules of the...
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Intracellular Movement of Viruses and Bacteria01:10

Intracellular Movement of Viruses and Bacteria

3.0K
Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a...
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Cytoskeletal Coordination in Cell Migration01:32

Cytoskeletal Coordination in Cell Migration

4.9K
A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker...
4.9K
Cytoplasm01:24

Cytoplasm

6.8K
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
6.8K
Role of Septins01:02

Role of Septins

1.5K
Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
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Use of Shigella flexneri to Study Autophagy-Cytoskeleton Interactions
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Use of Shigella flexneri to Study Autophagy-Cytoskeleton Interactions

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微生物の病原産と細胞骨格の機能について

Samantha Gruenheid1, B Brett Finlay

  • 1Biotechnology Laboratory, University of British Columbia, Vancouver, Canada V6T 1Z3.

Nature
|April 18, 2003
PubMed
まとめ
この要約は機械生成です。

病原性微生物は,生存と複製のために宿主細胞の細胞骨格を乗っ取ります. これらの相互作用の研究は,感染症の重要な分子機構と正常な細胞骨格の機能を明らかにします.

さらに関連する動画

Measurement of Microtubule Dynamics by Spinning Disk Microscopy in Monopolar Mitotic Spindles
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Author Spotlight: Exploring Cytoskeletal Dynamics to Unveil Novel Antibiotics Through Innovative Cell-Based Assays
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Use of Shigella flexneri to Study Autophagy-Cytoskeleton Interactions
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Measurement of Microtubule Dynamics by Spinning Disk Microscopy in Monopolar Mitotic Spindles
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Author Spotlight: Exploring Cytoskeletal Dynamics to Unveil Novel Antibiotics Through Innovative Cell-Based Assays
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科学分野:

  • 微生物学 微生物学とは
  • 細胞生物学 細胞生物学
  • 感染症 感染症は感染症です.

背景:

  • 病原性微生物は宿主細胞のプロセスを操作して生存ニッチを確立します.
  • 宿主細胞の細胞骨格は病原体にとって共通の標的であり,様々な微生物戦略に不可欠である.
  • 細胞骨格と病原体の相互作用を理解することは,疾患のメカニズムと基本的な細胞生物学の両方についての洞察を提供します.

研究 の 目的:

  • 病原菌が宿主細胞の細胞骨格をどのように利用するのかを解明する.
  • 宿主-病原体相互作用の研究が,感染症と細胞生物学の研究に与える二重の貢献を強調する.

主な方法:

  • 病原体の結合,侵入,細胞内移動,および免疫回避戦略を調査する.
  • バクテリアの毒素のようなツールを使用して,RhoファミリーのGTPasesを研究しています.
  • アクチンポリメリゼーションアッセイなど,リステリアやシゲラ菌を用いたインビトロモデルを使用する.

主要な成果:

  • 病原体は,入口,運動,および真空管の操作を含む生命周期の重要なステップのために細胞骨格を使用します.
  • 細胞骨格の病原体破壊は,ファゴシトーシスのような宿主の免疫防御を回避するのに役立ちます.
  • 病原体-宿主細胞骨格の相互作用は,細胞骨格の研究のための新しい実験システムを提供します.

結論:

  • 病原性の微生物の研究は,感染症の分子基盤に関する重要な洞察を提供します.
  • 細胞骨格との病原体の相互作用は,正常な細胞骨格機能の基本的な側面を明らかにしました.
  • 病原発生の研究は,複雑な細胞プロセスを解剖するための貴重なツールを提供します.