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Rhamm, a Co-Receptor and Its Interactions with Other Receptors in Cancer Cell Motility and the Identification of Cancer Prognitor Cell Populations
Rhamm, a Co-Receptor and Its Interactions with Other Receptors in Cancer Cell Motility and the Identification of Cancer Prognitor Cell Populations
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机译:Rhamm,在癌细胞运动中的辅助受体及其与其他受体的相互作用以及癌前体细胞群的鉴定
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摘要
CD44 is an integral hyaluronan receptor that can either promote or inhibit motogenic signaling in tumor cells. Rhamm is a non-integral cell surface (CD168) and intracellular hyaluronan binding protein that promotes cell motility in vitro and whose expression is strongly upregulated in aggressive tumors. The present invention describes compositions and methods for the prognosis and diagnosis of cancer by the detection of CD44/Rhamm complexes. The use of labeled Rhamm-binding agents in culture and in vivo to identify tumorigenic progenitor cells that exhibit an aggressive phenotype characterized by high Rhamm and CD44 expression is further described. Specific methods include using hyaluronan to target imaging or therapeutic agents to these progenitor tumor subsets in breast and likely other cancers.
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