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[Extracellular matrix and vascular ageing].

Marie-Paule Jacob1

  • 1Inserm U698, Hôpital Bichat-Claude Bernard, 46, rue Henri Huchard, 75877 Paris Cedex 18, France. jacob@bichat.inserm.fr

Medecine Sciences : M/S
|March 11, 2006
PubMed
Summary

The extracellular matrix (ECM) provides tissue structure. Ageing and disease disrupt ECM balance, impairing tissue function, especially in cardiovascular diseases.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Tissue Engineering

Context:

  • The extracellular matrix (ECM) is crucial for tissue structure and function.
  • ECM composition and organization are vital during development and in adult tissues.
  • ECM homeostasis involves a balance between synthesis and degradation of its components.

Purpose:

  • To explain the role of the extracellular matrix in tissue functionality.
  • To describe how ECM homeostasis is maintained in adult tissues.
  • To highlight the impact of ageing and pathological processes on ECM.

Summary:

  • The ECM, composed of elastin, collagens, proteoglycans, and glycoproteins, provides essential structural support for tissues.
  • In adult tissues, ECM turnover is low, with proteases present but minimally active.
  • Age-related changes, environmental factors (glucose, lipids, calcium), and altered biosynthesis/degradation disrupt ECM homeostasis.
  • These disruptions lead to impaired tissue functionality, particularly evident in cardiovascular diseases.

Impact:

  • Understanding ECM dynamics is key to addressing age-related tissue degeneration.
  • Identifying mechanisms of ECM dysregulation can lead to novel therapeutic strategies for cardiovascular diseases.
  • This research provides insights into the fundamental processes underlying tissue health and disease.

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