Microsatellite Instability in Pancreatic and Colon Tumors
Author Information
Author(s): Ghimenti C, Tannergård P, Wahlberg S, Liu T, Giulianotti P G, Mosca F, Fornaciari G, Bevilacqua G, Lindblom A, Caligo M A
Primary Institution: University of Pisa
Hypothesis
Is microsatellite instability involved in the tumorigenesis of sporadic pancreatic and colon cancers?
Conclusion
Microsatellite instability is unlikely to play a role in the tumorigenesis of sporadic pancreatic cancers, but alterations in mismatch repair genes are present in sporadic colon tumors with high instability.
Supporting Evidence
- 66.6% of pancreatic cancers showed microsatellite alterations.
- 26% of colon tumors showed microsatellite alterations.
- All unstable pancreatic samples showed a low rate of microsatellite instability.
- Alterations in the hMLH1 gene were found only in colorectal tumors with high microsatellite instability.
Takeaway
The study looked at cancer samples to see if a certain type of genetic change was involved in pancreatic and colon cancers. They found that this change is not important for pancreatic cancer but is for some colon cancers.
Methodology
The study screened 21 pancreatic and 23 colorectal sporadic cancers for microsatellite instability using different microsatellite markers.
Limitations
The study only included a limited number of cancer samples.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website