Related Experiment Video

Updated: Aug 14, 2026

Characterization of Cell Membrane Extensions and Studying Their Roles in Cancer Cell Adhesion Dynamics
08:11

Characterization of Cell Membrane Extensions and Studying Their Roles in Cancer Cell Adhesion Dynamics

Published on: March 26, 2018

Discoidin domain receptor 1 controls growth and adhesion of mesangial cells

Cyrile A Curat1, Wolfgang F Vogel

  • 1Georg-Speyer-Haus, Institute for Biomedical Research, Frankfurt am Main, Germany.

Journal of the American Society of Nephrology : JASN
|October 25, 2002
PubMed

Insights

Discoidin domain receptor 1 (DDR1) regulates mesangial cell adhesion and proliferation. Loss of DDR1 enhances cell proliferation by upregulating MAPK activity, suggesting a role in kidney disorders.

Area of Science:

  • Nephrology
  • Cell Biology
  • Molecular Biology

Background:

  • Collagen modulates mesangial cell proliferation.
  • Discoidin domain receptor 1 (DDR1) is a collagen-binding tyrosine kinase receptor.

Purpose of the Study:

  • Investigate DDR1 function in mouse mesangial cells.
  • Determine DDR1's role in collagen-mediated cellular responses.

Main Methods:

  • Northern analysis to confirm DDR1 expression in mouse kidneys.
  • Primary mesangial cell culture from wild-type and DDR1-null mice.
  • Assays for tyrosine phosphorylation, collagen adhesion, and cell proliferation.

Main Results:

  • DDR1 phosphorylation occurred upon type I collagen stimulation.
  • DDR1-null cells exhibited reduced adhesion to collagen.
  • DDR1-null cells showed significantly enhanced proliferation compared to wild-type cells.
  • Enhanced proliferation in DDR1-null cells was linked to upregulated MAPK activity.

Conclusions:

  • DDR1 negatively regulates mesangial cell proliferation.
  • DDR1 signaling influences cell adhesion and proliferation independently of alpha1/beta1 integrins.
  • DDR1 plays a role in the proliferative aspects of renal disorders.

More Related Videos

Glomerular Outgrowth as an Ex Vivo Assay to Analyze Pathways Involved in Parietal Epithelial Cell Activation06:39

Glomerular Outgrowth as an Ex Vivo Assay to Analyze Pathways Involved in Parietal Epithelial Cell Activation

Published on: August 19, 2020

Dioscin Mediated IgA Nephropathy Alleviation by Inhibiting B Cell Activation In Vivo and Decreasing Galactose-Deficient IgA1 Production In Vitro14:18

Dioscin Mediated IgA Nephropathy Alleviation by Inhibiting B Cell Activation In Vivo and Decreasing Galactose-Deficient IgA1 Production In Vitro

Published on: October 13, 2023

Related Concept Videos

Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Receptor Downregulation in MVBs01:15

Receptor Downregulation in MVBs

Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that  lead to cell proliferation, migration, and differentiation. Overexpression of EGFR  stimulates cells to proliferate. Excessive  EGFR activation may...
TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
Cadherins in Tissue Organization01:19

Cadherins in Tissue Organization

The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
Immunoglobulin-like Cell Adhesion Molecules01:31

Immunoglobulin-like Cell Adhesion Molecules

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.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Role Of Notch Signalling In Intestinal Stem Cell Renewal01:12

Role Of Notch Signalling In Intestinal Stem Cell Renewal

Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...