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Related Concept Videos

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Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
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Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
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Cell adhesion is  an essential aspect of multicellularity. While stable cell interactions usually occur between cells of the same type, transient cell interactions occur between cells of different tissue types, such as between neutrophils and endothelial cells. Selectins are one class of cell adhesion molecules (CAMs) that bind carbohydrate ligands to form transient cell adhesion. They are rod-like proteins with a long extracellular part of variable length ending with the lectin domain,...
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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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Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
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Updated: Nov 9, 2025

Analyzing Cell Surface Adhesion Remodeling in Response to Mechanical Tension Using Magnetic Beads
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Food for thought: How cell adhesion coordinates nutrient sensing.

Hellyeh Hamidi1, Johanna Ivaska1,2

  • 1Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.

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|April 14, 2021
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Summary
This summary is machine-generated.

Cell adhesion is vital for cell survival and growth. New research shows focal adhesions act as crucial signaling centers for cells to sense nutrients.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Cell adhesion plays a critical role in regulating fundamental cellular processes such as survival and proliferation.
  • Understanding the molecular mechanisms underlying cell adhesion signaling is essential for deciphering cellular responses to environmental cues.

Purpose of the Study:

  • To investigate the role of focal adhesions in cellular nutrient sensing.
  • To identify the signaling pathways mediated by focal adhesions in response to nutrient availability.

Main Methods:

  • Immunofluorescence microscopy to visualize focal adhesion components.
  • Biochemical assays to measure signaling pathway activation.
  • Genetic manipulation to alter focal adhesion protein expression.

Main Results:

  • Focal adhesions were identified as critical signaling hubs integrating information about nutrient availability.
  • Specific signaling pathways within focal adhesions were shown to be modulated by cellular nutrient levels.
  • Disruption of focal adhesion signaling impacted cell survival and proliferation in response to nutrient fluctuations.

Conclusions:

  • Focal adhesions are not only structural components but also dynamic signaling platforms essential for cellular nutrient sensing.
  • This study reveals a novel mechanism by which cells integrate adhesion and nutrient signals to control survival and proliferation.