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Updated: Aug 15, 2026
09:34
Isolation of Murine Valve Endothelial Cells
Published on: August 21, 2014
Molecules mediating cell-ECM and cell-cell communication in human heart valves
N Latif1, P Sarathchandra, P M Taylor
1Imperial College, NHLI, Heart Science Centre, Harefield Hospital, Middlesex, UK. n.latif@imperial.ac.uk
Cell Biochemistry and Biophysics
|July 29, 2005
Summary
Human valve interstitial cells (ICs) express specific adhesion molecules, including integrins, crucial for cell interactions and tissue engineering. This study profiles these molecules, providing a basis for future cell-based therapies.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Tissue Engineering
Background:
- Tissue-specific phenotypes rely on cell-matrix and cell-cell interactions mediated by adhesion receptors.
- Understanding these receptors on human valve interstitial cells (ICs) is vital for cardiac valve research and regeneration.
Purpose of the Study:
- To investigate the adhesion molecule profile of human valve interstitial cells (ICs) both in situ and in vitro.
- To analyze the expression and distribution of key adhesion receptors on ICs from all human cardiac valves.
Main Methods:
- Flow cytometry and immunocytochemistry were employed to quantify receptor expression on cultured ICs.
- Immunohistochemistry was used to determine the distribution pattern of these receptors within valve tissue sections.
Main Results:
- ICs expressed alpha1, alpha2, alpha3, alpha4, and alpha5 integrins, with predominant beta1 integrin expression.
- Low expression of alpha6, alphaV, beta3, and beta4 integrins was observed.
- Syndecan-1, -4, E-selectin were not detected; ICAM-1 and VCAM-1 showed weak to minimal detection.
Conclusions:
- This study identifies specific integrins and adhesion molecules expressed by human valve ICs.
- The characterized adhesion molecule profile serves as a potential fingerprint for ICs, informing future cell-based alternatives and valve tissue engineering strategies.
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