Cited by 68Pancreatic and Hepatic Oncology ResearchCholangiocarcinoma and Gallbladder Cancer StudiesCancer Genomics and Diagnostics

Frequencies and Prognostic Role of KRAS and BRAF Mutations in Patients With Localized Pancreatic and Ampullary Adenocarcinomas

Schultz, Nicolai Aagaard, Roslind, Anne, Christensen, Ib J., Horn, Thomas, Høgdall, Estrid, Pedersen, Lisbeth N., Kruhøffer, Mogens, Burcharth, Flemming +2 more·2012·Pancreas

Abstract

OBJECTIVES: The frequencies and prognostic role of KRAS and BRAF mutations in patients operated on for pancreatic ductal adenocarcinomas (PDACs) and ampullary adenocarcinomas (A-ACs) are scantily studied. METHODS: KRAS and BRAF mutations were analyzed in formalin-fixed, paraffin-embedded tumor samples from primarily chemotherapy-naive patients operated on with radical intentions for PDAC (n = 170) and A-AC (n = 107). RESULTS: Eighty percent of PDAC patients had KRAS mutations (codon 12 mutations: 74%) and 67% with A-AC (codon 12 mutations: 54%). BRAF mutations were less common, 16% in PDAC and 12% in A-AC, and no V600E mutations were found. Fourteen percent with PDAC and 7% with A-AC had mutations in both KRAS and BRAF. Multivariate analysis, including KRAS status, stage, and American Society of Anesthesiologists physical status classification system score, demonstrated that KRAS mutations in patients with A-AC were associated with short recurrence-free survival (RFS) (hazard ratio, 2.45; 95% confidence interval, 1.19-5.06; P = 0.015) and overall survival (OS) (1.93, 95% 1.12-3.31; P = 0.018). KRAS mutations in patients with PDAC were not associated with RFS and OS. BRAF mutations were not associated with RFS and OS. CONCLUSIONS: KRAS mutations frequencies were high in PDAC and A-AC. KRAS mutations were associated with poor prognosis in patients with A-AC, but not in patients with PDAC.

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Crossref · 10.1097/mpa.0b013e31823cd9df

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31 of 31 references verified0 citation errors · 0 not checkable

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  • KRAS mutations were present in 80% of PDAC and 67% of ampullary adenocarcinomas.

    “In examining localized pancreatic and ampullary adenocarcinomas, it was found that KRAS mutations were present in 80% of PDAC and 67% of ampullary adenocarcinomas.”
  • KRAS mutations served as independent prognostic biomarker for shorter overall survival in chemotherapy-naive patients with ampullary adenocarcinoma.

    “Notably, KRAS mutations served as an independent prognostic biomarker for shorter overall survival in chemotherapy-naive patients with ampullary adenocarcinoma [101].”
  • In localized and resectable PDAC, KRAS mutation has been found either negatively associated or not associated with survival.

    “For example, in localized and rescetable PDACs, KRAS mutation was found to be either negatively associated with or not associated with survival (59, 60).”

    From KRAS mutation in pancreatic cancer (2021) · cites this paper as [60]

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Authors
Schultz, N. A., Roslind, A., Christensen, I. J., Horn, T., Høgdall, E., Pedersen, L. N., Kruhøffer, M., Burcharth, F., Wøjdemann, M., & Johansen, J. S.
Affiliations
  • Herlev Hospital (DK)
  • University of Copenhagen (DK)
  • Aarhus University Hospital (DK)
  • Copenhagen University Hospital (DK)
Corresponding author
  • Schultz, Nicolai Aagaard
  • Burcharth, Flemming
  • Wøjdemann, Morten
  • Johansen, Julia S.
Venue
Pancreas
Published
2012-07
Volume
41
Issue
5
Pages
759-766
ISSN
0885-3177 (ISSN-L)
OpenAlex
W2006022749
Cited by
68
References
31
Citations by year
2025: 1 · 2024: 6 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 3 · 2019: 7 · 2018: 7 · 2017: 5 · 2016: 11 · 2015: 6 · 2014: 8 · 2013: 3 · 2012: 2
FWCI
3.01
Type
journal article
Language
en
Open access
closed
Locations
  • Pancreas (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • Aarhus Universitetshospital
  • Gentofte Hospital
  • Herlev Hospital
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Surgery › Cholangiocarcinoma and Gallbladder Cancer Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
Keywords
KRAS mutation, BRAF mutation, pancreatic ductal adenocarcinoma, ampullary adenocarcinoma, KRAS codon 12, prognostic factors, recurrence-free survival, overall survival
MeSH terms
Adenocarcinoma, Adult, Aged, Aged, 80 and over, Female, Gene Frequency, Genotype, Humans, Male, Middle Aged, Mutation, Neoplasm Staging, Pancreatic Neoplasms, Prognosis, Proto-Oncogene Proteins, Smoking, Ampulla of Vater, Multivariate Analysis, Proto-Oncogene Proteins p21(ras), ras Proteins, Carcinoma, Pancreatic Ductal, Proto-Oncogene Proteins B-raf, Kaplan-Meier Estimate

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