Extracellular matrix of keratinized tissue

The intercellular matrix of keratinized tissue refers to the extracellular matrix (ECM) and associated proteins present between cells of stratified, keratinized epithelium, such as skin or oral mucosa. This matrix is largely composed of proteins like collagen, glycoproteins, proteoglycans, and specialized cell envelope proteins (e.g., involucrin, loricrin) that contribute to the mechanical strength, barrier function, and resilience of keratinized tissues[1][3][4]. Keratin intermediate filaments within epithelial cells connect to the ECM via specific cell junctions (such as hemidesmosomes and desmosomes), playing a critical role in maintaining structural integrity and mediating physiological processes such as wound healing, cell migration, and cellular stress resistance[1][5]. The ECM and its cell–matrix interactions are central not only to tissue homeostasis and repair, but also in disease processes, including cancer invasion and keratinization disorders[2][3][5]. Key clarification: The phrase "intercellular matrix of keratinized tissue" does NOT refer to a single, well-defined molecular target, receptor, or gene. Instead, it describes a complex, tissue-level compartment comprising diverse structural and regulatory molecules[1][2][3][4][5]. If you are seeking a specific molecular entity within this compartment (e.g., a particular keratin, ECM protein, or receptor involved in cell–matrix interaction), please specify the actual gene, protein, or receptor of interest.

Other names

Intercellular matrixextracellular matrix of keratinized epithelium

Not applicable for specific drug targeting; general ECM modulation may impact cell migration, adhesion, or differentiation