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A majority of cancer cells showed weak to moderate cytoplasmic positivity. Mitotic cells in squamous cell carcinomas and transitional cell carcinomas showed strong nuclear positivity. A majority of lymphomas, lung and renal carcinomas were negative.
Most prostate cancers and a few cases in other cancers displayed moderate to strong membranous immunoreactivity with additional weaker cytoplasmic staining. Cancer cells in general were negative.
GENE INFORMATION
Gene name
UTRN (HGNC Symbol)
Synonyms
DMDL, DRP, DRP1
Description
Utrophin (HGNC Symbol)
Entrez gene summary
This gene shares both structural and functional similarities with the dystrophin gene. It contains an actin-binding N-terminus, a triple coiled-coil repeat central region, and a C-terminus that consists of protein-protein interaction motifs which interact with dystroglycan protein components. The protein encoded by this gene is located at the neuromuscular synapse and myotendinous junctions, where it participates in post-synaptic membrane maintenance and acetylcholine receptor clustering. Mouse studies suggest that this gene may serve as a functional substitute for the dystrophin gene and therefore, may serve as a potential therapeutic alternative to muscular dystrophy which is caused by mutations in the dystrophin gene. Alternative splicing of the utrophin gene has been described; however, the full-length nature of these variants has not yet been determined. [provided by RefSeq, Jul 2008]