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Most cancers displayed weak to moderate cytoplasmic and/or nuclear positivity. Additional membranous positivity was seen in colorectal cancers. Lymphomas, gliomas, hepatocellular carcinomas and renal cancers were mostly negative.
GENE INFORMATION
Gene name
RASD1 (HGNC Symbol)
Synonyms
AGS1, DEXRAS1
Description
RAS, dexamethasone-induced 1 (HGNC Symbol)
Entrez gene summary
This gene encodes a member of the Ras superfamily of small GTPases and is induced by dexamethasone. The encoded protein is an activator of G-protein signaling and acts as a direct nucleotide exchange factor for Gi-Go proteins. This protein interacts with the neuronal nitric oxide adaptor protein CAPON, and a nuclear adaptor protein FE65, which interacts with the Alzheimer's disease amyloid precursor protein. This gene may play a role in dexamethasone-induced alterations in cell morphology, growth and cell-extracellular matrix interactions. Epigenetic inactivation of this gene is closely correlated with resistance to dexamethasone in multiple myeloma cells. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2011]