Describe the different cell adhesion molecules.

Cell adhesion molecules (CAMs) are proteins located on the cell surface that facilitate the binding of cells to each other and to the extracellular matrix (ECM). These molecules play essential roles in maintaining tissue structure, cellular communication, and various biological processes such as embryogenesis, wound healing, immune response, and cancer metastasis. CAMs are broadly classified into four major families: cadherins, integrins, selectins, and immunoglobulin superfamily (IgSF) members.

1. Cadherins

Cadherins are calcium-dependent adhesion molecules that mediate homophilic cell-cell adhesion, meaning they bind to the same type of cadherin on adjacent cells. They are critical for maintaining tissue integrity and are involved in processes such as ________ ______ ______ ____ ________ _________ _______ __________ ____ _______.
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