scholarly journals Targeted next‐generation sequencing of cancer genes dissects the molecular profiles of intraductal papillary neoplasms of the pancreas

2014 ◽  
Vol 233 (3) ◽  
pp. 217-227 ◽  
Author(s):  
Eliana Amato ◽  
Marco dal Molin ◽  
Andrea Mafficini ◽  
Jun Yu ◽  
Giuseppe Malleo ◽  
...  
Pancreatology ◽  
2014 ◽  
Vol 14 (3) ◽  
pp. S119-S120
Author(s):  
Eliana Amato ◽  
Marco dal Molin ◽  
Andrea Mafficini ◽  
Jun Yu ◽  
Giuseppe Malleo ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Andrea Luchetti ◽  
Diana Walsh ◽  
Fay Rodger ◽  
Graeme Clark ◽  
Tom Martin ◽  
...  

At least 12 genes (FH, HIF2A, MAX, NF1, RET, SDHA, SDHB, SDHC, SDHD, SDHAF2, TMEM127,andVHL) have been implicated in inherited predisposition to phaeochromocytoma (PCC), paraganglioma (PGL), or head and neck paraganglioma (HNPGL) and a germline mutation may be detected in more than 30% of cases. Knowledge of somatic mutations contributing to PCC/PGL/HNPGL pathogenesis has received less attention though mutations inHRAS, HIF2A, NF1, RET,andVHLhave been reported. To further elucidate the role of somatic mutation in PCC/PGL/HNPGL tumourigenesis, we employed a next generation sequencing strategy to analyse “mutation hotspots” in 50 human cancer genes. Mutations were identified forHRAS(c.37G>C; p.G13R and c.182A>G; p.Q61R) in 7.1% (6/85); forBRAF(c.1799T>A; p.V600E) in 1.2% (1/85) of tumours; and forTP53(c.1010G>A; p.R337H) in 2.35% (2/85) of cases. Twenty-one tumours harboured mutations in inherited PCC/PGL/HNPGL genes and noHRAS, BRAF, orTP53mutations occurred in this group. Combining our data with previous reports ofHRASmutations in PCC/PGL we find that the mean frequency ofHRAS/BRAFmutations in sporadic PCC/PGL is 8.9% (24/269) and in PCC/PGL with an inherited gene mutation 0% (0/148) suggesting thatHRAS/BRAFmutations and inherited PCC/PGL genes mutations might be mutually exclusive. We report the first evidence forBRAFmutations in the pathogenesis of PCC/PGL/HNPGL.


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