Cell adhesion molecules and oral cancer
| Autor: | GJ Thomas, P.M. Speight |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
0301 basic medicine
Integrins Integrin 03 medical and health sciences 0302 clinical medicine Cell–cell interaction Nectin Biomarkers Tumor Animals Humans Cell adhesion General Dentistry Cluster of differentiation biology Cell adhesion molecule CD44 030206 dentistry Cell biology 030104 developmental biology Hyaluronan Receptors Otorhinolaryngology biology.protein Carcinoma Squamous Cell Neural cell adhesion molecule Mouth Neoplasms Cell Adhesion Molecules |
| Zdroj: | Critical reviews in oral biology and medicine : an official publication of the American Association of Oral Biologists. 12(6) |
| ISSN: | 1045-4411 |
| Popis: | Cell adhesion molecules (CAMs) are found on the surfaces of all cells, where they bind to extracellular matrix molecules or to receptors on other cells. As well as having a structural role, CAMs function as signaling receptors, transducing signals initiated by cellular interactions which regulate many diverse processes, including cell division, migration, and differentiation. Cell adhesion molecules are essential for maintaining stable tissue structure. However, cell adhesion must be dynamic to facilitate the mobility and turnover of cells. In dynamic situations, cells alter their cell-cell and cell-matrix interactions by virtue of altered expression and function of CAMs. The expression of CAMs is normally tightly regulated, thereby controlling cell proliferation, mobility, differentiation, and survival. Many of these processes are misregulated in malignant tumors, and it has been shown that many of the characteristics of tumor cells are attributable to the aberrant expression or function of CAMs. Integrins and E-cadherin are the most important CAMs expressed by stratified squamous epithelium. Altered expression of these molecules has been found in oral carcinoma, where loss of CAM expression is often seen in poorly differentiated lesions. However, up-regulation of certain integrins, such as av(36, has consistently been found in oral cancer, suggesting that it may play an active role in disease progression. |
| Databáze: | OpenAIRE |
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