Somatic mutation of PARK2 tumor suppressor gene is not common in common solid cancers.

Recent studies identified that PARK2 gene was a candidate tumor suppressor gene in colorectal cancers and glioblastomas. The aim of this study was identify whether PARK2 somatic mutation is present in other solid tumor as well. In this study, we analyzed the entire coding sequences of human PARK2 gene in gastric, colorectal, breast, lung and prostate carcinoma by single-strand conformation polymorphism (SSCP) and subsequent direct DNA sequencing. We found two missense mutations (p.Ser9Thr and p.Gly450Val) in colon carcinomas (4.3 %), which were not overlapped with the known PARK2 mutations. Our data suggest that somatic mutational events in PARK2 gene may be rare in colorectal, gastric, prostate, breast and lung carcinomas and may not play an important role in the development of these cancers.