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Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
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Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

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Overview
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Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

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The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
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Diversity in Cell Signaling Responses01:22

Diversity in Cell Signaling Responses

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The physiological function of a cell and cellular communication are outcomes of a range of extrinsic signals, intracellular signaling pathways, and cellular responses. No two cell types express the same repertoire of signaling components. Receptors are highly selective for their cognate ligands, but once activated, they can alter multiple cellular processes such as DNA transcription, protein synthesis, and metabolic activity. 
Graded and Abrupt Responses
Some signaling systems generate...
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Target Cell Response to Hormones01:22

Target Cell Response to Hormones

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Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
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Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

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The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
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Quantitative Analysis of Cell Edge Dynamics during Cell Spreading
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Quantitative Analysis of Cell Edge Dynamics during Cell Spreading

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B細胞反応:細胞相互作用のダイナミクスと決定

Jason G Cyster1, Christopher D C Allen2

  • 1Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA.

Cell
|April 20, 2019
PubMed
まとめ
この要約は機械生成です。

このレビューでは,B細胞の反応を調査し,免疫と健康のために様々な抗体を生成する方法について詳細に説明します. これらの経路を理解することは 効果的なワクチンや治療法の開発の鍵です

キーワード:
B リンパ球BCR についてT細胞の助けアレルギー抗体について発芽センターアイソタイプスイッチリンパ節プラズマ細胞ワクチン

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Use of an Optical Trap for Study of Host-Pathogen Interactions for Dynamic Live Cell Imaging
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Use of an Optical Trap for Study of Host-Pathogen Interactions for Dynamic Live Cell Imaging

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Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions
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関連する実験動画

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Quantitative Analysis of Cell Edge Dynamics during Cell Spreading
10:54

Quantitative Analysis of Cell Edge Dynamics during Cell Spreading

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Use of an Optical Trap for Study of Host-Pathogen Interactions for Dynamic Live Cell Imaging
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Use of an Optical Trap for Study of Host-Pathogen Interactions for Dynamic Live Cell Imaging

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Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions
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Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions

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科学分野:

  • 免疫学
  • 細胞生物学
  • 分子生物学

背景:

  • B細胞とそれらが産生する抗体は,ヒトの生理に重大な影響を及ぼします.
  • B細胞の反応開始と分化経路に関する現在の知識が検討されています.

研究 の 目的:

  • B細胞の反応の開始を検証する.
  • プラズマ細胞,生殖細胞,記憶細胞の生成経路の概要
  • これらの経路が抗体多様性,選択性,および親和性に与える影響について議論する.

主な方法:

  • B細胞免疫学の現在の理解に関する文献レビュー.
  • B細胞の分化経路の分析
  • 抗体の特性とその生成の検査

主要な成果:

  • 分化経路は,異なるB細胞集団 (短命/長命のプラズマ細胞,生殖中心細胞,記憶細胞) を生み出します.
  • これらの経路は抗体の多様性,選択性,親和性に重大な影響を及ぼします.
  • 基本的研究の洞察は,ウイルス病原体に対する抗体を広く中和させるためのワクチンの開発を導いています.
  • アレルゲン反応性IgE応答の特殊な特徴が強調されています.
  • 健康と病気におけるB細胞の抗体独立の役割は明らかにされている.

結論:

  • B細胞の反応を理解することは 免疫学と医学の進歩に不可欠です
  • この知識は,感染症やアレルギーの標的型ワクチンや治療法を設計するのに役立ちます.
  • B細胞は,抗体生産を超えて,多面的な役割を担っています.