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- W2023553423 abstract "The prion protein, PrPC, is known mostly for its involvement in neurodegenerative spongiform encephalopathies. However, a role for this molecule in cancer is becoming increasingly recognized partly because it promotes cell proliferation and inhibits apoptosis. Moreover, the codon 129 polymorphism (M129V) of the PRNP gene (the PrPC-encoding gene) has been associated with neurodegenerative disease development and severity, while no information is available regarding its role in colorectal cancer (CRC) incidence and disease progression. We have previously reported that expression levels of PRNP may have a prognostic value in CRC, suggesting a role for the prion protein in CRC. The aim of this study was to investigate retrospectively the possible role of M129V and PrPC expression in patients with CRC. The M129V single nucleotide polymorphism was genotyped by real time polymerase chain reactions in 110 patients with CRC and 124 healthy donors. Moreover, protein expression was assessed by immunohistochemistry in 68 patients with CRC. Allele frequencies were similar in patients and healthy controls indicating that the M129V polymorphism is not a risk factor for CRC. Furthermore, it did not correlate with any clinicopathological parameters. By contrast, PrPC expression was highly elevated in neoplastic compared to normal tissue and differed depending on the primary site. Interestingly, protein levels were correlated with disease recurrence (P = 0.007). Conclusively, PrPC overexpression may constitute a prognostic marker for disease recurrence and potentially a new target for anticancer therapy. However, further studies are needed to evaluate prospectively the role of PrPC expression in patients with CRC. © 2010 Wiley-Liss, Inc." @default.
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- W2023553423 date "2010-01-01" @default.
- W2023553423 modified "2023-10-18" @default.
- W2023553423 title "Prion protein expression and the M129V polymorphism of the PRNP gene in patients with colorectal cancer" @default.
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- W2023553423 doi "https://doi.org/10.1002/mc.20642" @default.
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