The cd44 antigen is a cellsurface glycoprotein involved in cellcell interactions, cell adhesion and migration. Pdf cd44 acts as a signaling platform controlling tumor. A multifunctional cell surface adhesion receptor is a regulator of progression and metastasis of cancer cells article pdf available in frontiers in cell and developmental biology 5pt 3. Several representative regulatory mechanisms are shown below in fig. Platform controlling tumor progression and metastasis. Molecules regulate promoter activity and expression. Review article adhesion molecules in biology and oncology. In this study, we investigated the effect of opn on hcv replication and ifn signaling in cancer stem cells cscs positive for epithelial cell adhesion molecule epcam and cd44. Pdf synaptic cell adhesion molecules regulate signal transduction, synaptic function, and plasticity. Signal transduction pathways are no longer thought of as linear sequences of biochemical modifications, but rather.
Jams act predominantly as signalling molecules rather than classical adhesion receptors. Article information, pdf download for cd44 integrates signaling in normal stem cell. Author summary cytoskeleton protein complex involving with association of cd44 and erms is critical for cancerrelated cellular adhesion and migration. The cd44 transmembrane glycoprotein family adds new aspects to these roles by participating in signal transduction processesnot only by establishing specific. In humans, the cd44 antigen is encoded by the cd44 gene on chromosome 11. Cd44 acts as a signaling platform controlling tumor progression and metastasis. Cell adhesion molecules, once believed to function primarily in tethering cells to extracellular ligands, are now recognized as having broader functions in cellular signalling cascades, the cd44 transmembrane glycoprotein family adds new aspects to these roles by participating in signal transduction processes not only by establishing specific transmembrane complexes, but also by organizing. Cd44 signaling in prostate cancer cells has also been shown to. The biology and role of cd44 in cancer progression. The adhesion molecules are involved in the cell differentiation, migration and sorting.
Cd44 is a cell surface adhesion receptor that is highly expressed in many. In situ hybridization signal a cd44 mrna, antisense probe, green colocalizes with. Download citation ponta h, sherman l, herrlich pacd44. It is a transmembrane, highly glycosylated protein with. For an adhesion receptor to mediate its affects, it must not only bind to its extracellular ligands but must also engage the cytoskeleton and coordinate signalling. In breast cancer cell lines, high molecular weight ha is involved in. Cd44 integrates signaling in normal stem cell, cancer stem cell and.
Cell adhesion molecules, once believed to function primarily in tethering cells to extracellular ligands, are now recognized as having broader functions in cellular signalling cascades. The winding road from adhesive receptors to the nucleus. The role of the cd44 transmembrane and cytoplasmic domains in. A multifunctional cell surface adhesion receptor is a regulator of progression and.
They have three domains, the extracellular domain, as a signal. Molecular mechanism for bidirectional regulation of cd44. Cd44 is the major surface hyaluronan ha receptor implicated in intercellular and cellmatrix adhesion, cell migration and signaling. Signal transduction pathways are no longer thought of as linear sequences of. It is a transmembrane, highly glycosylated protein with several isoforms resulting from alternative gene splicing. Physiological functions of junctional adhesion molecules. Cd44 functions in wnt signaling by regulating lrp6. The cd44 transmembrane glycoprotein family adds new aspects to these roles by participating in signal transduction processes not only by establishing specific transmembrane complexes, but also by organizing. The protein interactions are found to be modulated by chemical modification and membrane microenvironments, but the inherent mechanism is unclear. Jams interact with pdz domaincontaining scaffolding proteins to recruit and assemble signalling complexes. Jams are important regulators of the barrier function in various organs.
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