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Biochem Biophys Res Commun. 1996 Aug 23;225(3):968-74.

Isolation of DNA sequences amplified at chromosome 19q13.1-q13.2 including the AKT2 locus in human pancreatic cancer.

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Oncogene Division, National Cancer Center Research Institute, Tokyo, Japan.


In the human pancreatic cancer cell line PANC1, we detected several DNA fragments with abnormally intensified signals by restriction landmark genomic scanning. Major five of these fragments were cloned. All of the cloned fragments were mapped at the 19q13.1-13.2 region where the AKT2 oncogene was located. Southern blotting using the cloned DNA fragments and a fragment of AKT2 cDNA as probes revealed that the AKT2 gene was amplified in 3 of 12 pancreatic cancer cell lines analyzed including PANC1 and in 3 of 20 primary pancreatic cancers. The AKT2 gene was overexpressed in the 3 cell lines with the amplified gene. The results suggest that the AKT2 gene is a candidate oncogene activated by amplification in some human pancreatic cancers.

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