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関連する概念動画

Basal Lamina are the Specialized Form of ECM01:03

Basal Lamina are the Specialized Form of ECM

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The basal lamina is a thin extracellular layer that lies underneath the cells and separates them from other tissues. The three layers of the basal lamina are lamina lucida, lamina densa and lamina reticularis. The basal lamina, a mixture of glycoproteins and collagen, provides an attachment site for the epithelium, separating it from underlying connective tissue. The framework of basal lamina has other essential proteins such as laminins mesh, perlecan, entactin, and type IV collagen.
Proteins...
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Membrane Domains01:18

Membrane Domains

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The membrane domains concentrate specific lipids and proteins at one place within the membrane, which helps in cell signaling, adhesion, and other critical cellular processes. These domains can differ in size, composition, function, and lifespan.
Protein Domains
The membrane comprises a group of distinct proteins responsible for carrying out a cell's specific function. For example, the plasma membrane of the human sperm, or a single germ cell, contains a unique set of proteins in the...
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What are Membranes?01:54

What are Membranes?

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A key characteristic of life is the ability to separate the external environment from the internal space. To do this, cells have evolved semi-permeable membranes that regulate the passage of biological molecules. Additionally, the cell membrane defines a cell’s shape and interactions with the external environment. Eukaryotic cell membranes also serve to compartmentalize the internal space into organelles, including the endomembrane structures of the nucleus, endoplasmic reticulum and...
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Laminins are the Adhesive Proteins of Basal Lamina00:55

Laminins are the Adhesive Proteins of Basal Lamina

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Laminins are heterotrimeric proteins with high molecular mass found in the extracellular matrix. Each laminin molecule is composed of three chains, viz. alpha, beta, and gamma, coded by five, four, and three paralogous genes, respectively. Laminins are categories based on the compositions of the three chains.
In humans, the five forms of alpha chains are LAMA 1, LAMA 2, LAMA 3, LAMA 4, and LAMA 5. The four forms of beta chains are LAMB 1, LAMB 2, LAMB 3, and LAMB 4. The three forms of gamma...
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Tissue Membranes01:27

Tissue Membranes

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A tissue membrane is a thin layer of cells that covers the outside of the body, the organs, internal passageways that lead to the exterior of the body, and the lining of the moveable joint cavities. There are two basic types of tissue membranes— connective tissue and epithelial membranes.
Connective Tissue Membranes
The connective tissue membrane is formed solely from connective tissue. These membranes encapsulate organs, such as the kidneys, and line our movable joints. A synovial...
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Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

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The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
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Updated: Sep 9, 2025

Confocal and Super-Resolution Imaging of Polarized Intracellular Trafficking and Secretion of Basement Membrane Proteins During Drosophila Oogenesis
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地下層膜の概要

Rachel Lennon1, David R Sherwood2

  • 1Manchester Cell-Matrix Centre, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PT, UK.

Journal of cell science
|September 3, 2025
PubMed
まとめ
この要約は機械生成です。

基礎膜 (Basement membrane,BM) は,組織構造と機能に不可欠な古代の細胞外マトリックスである. 細胞の組成と 老化や病気に伴う変化を理解することで 新しい治療法が見つかるのです

キーワード:
老化についてベースメント膜病気膜の組成

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Ultrathin Porated Elastic Hydrogels As a Biomimetic Basement Membrane for Dual Cell Culture
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Basement Membrane Matrix Encapsulated Cell Aggregation for Investigating Murine Spleen Tissue Formation
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Confocal and Super-Resolution Imaging of Polarized Intracellular Trafficking and Secretion of Basement Membrane Proteins During Drosophila Oogenesis
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Ultrathin Porated Elastic Hydrogels As a Biomimetic Basement Membrane for Dual Cell Culture
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Basement Membrane Matrix Encapsulated Cell Aggregation for Investigating Murine Spleen Tissue Formation
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科学分野:

  • 生物化学
  • 細胞生物学
  • 細胞外マトリックス研究

背景:

  • 基礎膜 (Basement membranes,BMs) は,ほとんどの組織を覆い,周囲に囲む,古代の動物の細胞外マトリックスである.
  • 構造的な支架と 拉伸性強さを提供します ラミリンやコラーゲンIVのような 核心部位を通してです
  • BMには150以上の分泌タンパク質と50の細胞受容体が含まれており,様々な組織特有の機能を可能にします.

研究 の 目的:

  • 基礎膜 (BM) の構成,形成,機能に関する現在の理解をレビューする.
  • フィルタリング,臓器形成,細胞シグナル伝達などの特定の組織役割に BM がどのように適応されているかを調査する.
  • 老化や病気に伴って BM が変化することを概説する.

主な方法:

  • 基礎膜生物学に関する既存の研究の文献レビュー.
  • BMの分子組成と構造構造の分析
  • BMタンパク質の機能的役割と疾患関連性の検討

主要な成果:

  • BMは,多くの他のタンパク質で補完されたラミニンとコラーゲンIVの自己結合ネットワークから構築された複雑な構造です.
  • フィルタリング,組織組織化,細胞の行動指針などの重要な機能を果たします.
  • BMタンパク質の欠陥は100以上のヒト疾患の現象型と関連しています

結論:

  • 基礎膜は組織の健康とホメオスタシスに不可欠です
  • BMの組成と機能の不調は多くの病気に寄与する.
  • BMの生物学に関するさらなる研究は,ヒトの疾患に対する新しい治療戦略の開発に不可欠です.