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Strong cytoplasmic positivity was observed in a few colon, endometrial and ovarian cancers. Cancer tissues in general displayed weak to moderate positivity. Nuclear positivity was also observed in a few cases. Most lymphomas and squamous cell carcinomas were negative.
Several hepatocellular carcinomas, colorectal and stomach cancers showed moderate to strong cytoplasmic immunoreactivity. Additional membranous staining was exhibited in colorectal cancers along with a few pancreatic, stomach, urothelial, testicular and lung cancers. Remaining cancer tissues were negative.
GENE INFORMATION
Gene name
ACSL5 (HGNC Symbol)
Synonyms
ACS2, ACS5, FACL5
Description
Acyl-CoA synthetase long-chain family member 5 (HGNC Symbol)
Entrez gene summary
The protein encoded by this gene is an isozyme of the long-chain fatty-acid-coenzyme A ligase family. Although differing in substrate specificity, subcellular localization, and tissue distribution, all isozymes of this family convert free long-chain fatty acids into fatty acyl-CoA esters, and thereby play a key role in lipid biosynthesis and fatty acid degradation. This isozyme is highly expressed in uterus and spleen, and in trace amounts in normal brain, but has markedly increased levels in malignant gliomas. This gene functions in mediating fatty acid-induced glioma cell growth. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]