The extracellular matrix is a mesh of protein fibres and glycoproteins that exist externally of the cell in multicellular organisms
The extracellular matrix (ECM) typically provides structural and biochemical support to surrounding cells, including:
- Providing sites for anchorage by cells within a tissue and segregating separate tissues from one another
- Sequestering and storing growth factors until receipt of a chemical signal (thereby regulating intercellular communication)
In plant cells the extracellular matrix includes cell wall components (like cellulose) and hence plays an important role in:
- Regulating water uptake (maintainence of cell turgor)
- Providing mechanical strength and rigidity to the cell (maintains cell shape)
Extracellular Matrix (Animal Tissue)
