Cited by 280Pancreatic and Hepatic Oncology ResearchCancer Genomics and DiagnosticsPancreatitis Pathology and Treatment

Clinical Significance of the Genetic Landscape of Pancreatic Cancer and Implications for Identification of Potential Long-term Survivors

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Yachida, Shinichi, White, Catherine M., Naito, Yoshiki, Zhong, Yi, Brosnan, Jacqueline A., Macgregor-Das, Anne M., Morgan, Richard A., Saunders, Tyler +8 more·2012·Clinical Cancer Research

Published version of a preprint

Abstract

Purpose: Genetic alterations of KRAS, CDKN2A, TP53, and SMAD4 are the most frequent events in pancreatic cancer. We determined the extent to which these 4 alterations are coexistent in the same carcinoma, and their impact on patient outcome. Experimental Design: Pancreatic cancer patients who underwent an autopsy were studied (n = 79). Matched primary and metastasis tissues were evaluated for intragenic mutations in KRAS, CDKN2A, and TP53 and immunolabeled for CDKN2A, TP53, and SMAD4 protein products. The number of altered driver genes in each carcinoma was correlated to clinicopathologic features. Kaplan–Meier estimates were used to determine median disease free and overall survival, and a Cox proportional hazards model used to compare risk factors. Results: The number of genetically altered driver genes in a carcinoma was variable, with only 29 patients (37%) having an alteration in all 4 genes analyzed. The number of altered driver genes was significantly correlated with disease free survival (P = 0.008), overall survival (P = 0.041), and metastatic burden at autopsy (P = 0.002). On multivariate analysis, the number of driver gene alterations in a pancreatic carcinoma remained independently associated with overall survival (P = 0.046). Carcinomas with only 1 to 2 driver alterations were enriched for those patients with the longest survival (median 23 months, range 1 to 53). Conclusions: Determinations of the status of the 4 major driver genes in pancreatic cancer, and specifically the extent to which they are coexistent in an individual patients cancer, provides distinct information regarding disease progression and survival that is independent of clinical stage and treatment status. Clin Cancer Res; 18(22); 6339–47. ©2012 AACR.

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  • Coexistent alterations in CDKN2A, KRAS, TP53 and SMAD4 were observed in pancreatic cancer, with frequent loss of tumor suppressors like CDKN2A, ARID1A, APC and ID3.

    “Coexistent alterations in CDKN2A, KRAS, TP53 and SMAD4 were observed in pancreatic cancer, with frequent loss of tumor suppressors like CDKN2A, ARID1A, APC and ID3 [26,44].”

    From Significance of TP53, CDKN2A, SMAD4 and KRAS in Pancreatic Cancer (2024) · cites this paper as [26]

    The Results section, “Coexistent Genetic Alterations in Pancreatic Cancer” (page unavailable), reports coexistent alterations in KRAS, CDKN2A, TP53 and SMAD4. The Results section, “Genetic Features of Pancreatic Cancers Obtained from Autopsy” (page unavailable), reports frequent CDKN2A loss. The Introduction mentions ARID1A only as a low-frequency altered gene; the passages do not support frequent loss of ARID1A, APC or ID3. (LLM, conf=0.89)

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  • Genetic analysis indicates complex interactions among KRAS, CDKN2A, TP53 and SMAD4 alterations, influencing metastatic burden and survival.

    “Genetic analysis indicates complex interactions among KRAS, CDKN2A, TP53 and SMAD4 alterations, influencing metastatic burden and survival [26].”

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Research works printed but not linked: 1

  1. [25]Obata A Eura M Sasaki J Saya H Chikamatsu K Tada M Clinical significance of p53 functional loss in squamous cell carcinoma of the oropharynx Int J Cancer 2000 89 2 187 93 10754498

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Authors
Yachida, S., White, C. M., Naito, Y., Zhong, Y., Brosnan, J. A., Macgregor-Das, A. M., Morgan, R. A., Saunders, T., Laheru, D. A., Herman, J. M., Hruban, R. H., Klein, A. P., Jones, S., Velculescu, V., Wolfgang, C. L., & Iacobuzio-Donahue, C. A.
Affiliations
  • Kurume University (JP)
  • Authors' Affiliations: Departments of 1Pathology, 2Oncology, 3Surgery, and 4Radiation Oncology, The Sol Goldman Pancreatic Cancer Research Center, 5The Lugwig Center for Cancer Genetics and Therapeutics, Johns Hopkins Medical Institutions, Baltimore, Maryland; 6National Cancer Center Research Institute, Tokyo; and 7Kurume University School of Medicine, Kurume, Fukuoka, Japan
Venue
Clinical Cancer Research
Published
2012-11-14
Volume
18
Issue
22
Pages
6339-6347
ISSN
  • 1078-0432 (ISSN-L)
  • 1557-3265
OpenAlex
W2155563954
Cited by
280
References
43
Citations by year
2026: 16 · 2025: 18 · 2024: 17 · 2023: 22 · 2022: 27 · 2021: 33 · 2020: 25 · 2019: 15 · 2018: 20 · 2017: 23 · 2016: 15 · 2015: 22 · 2014: 15 · 2013: 12
FWCI
7.76
Type
journal article
Language
en
Open access
Locations
  • Clinical Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5r01ca121113-15)
  • Japan Society for the Promotion of Science (23390326, 24659612)
  • National Cancer Institute (CA-101955, P20CA101955, R01CA140599, P50CA101955, R01-CA121113, CA-121113, CA140599, P50CA062924, CA 62924)
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Surgery › Pancreatitis Pathology and Treatment
Keywords
pancreatic cancer, driver gene alterations, KRAS, CDKN2A, TP53, SMAD4, long-term survival, disease-free survival, metastatic burden, prognostic factors, autopsy tissue
MeSH terms
Aged, DNA Mutational Analysis, Female, Humans, Male, Middle Aged, Pancreatic Neoplasms, Proto-Oncogene Proteins, Risk Factors, Proportional Hazards Models, Tumor Suppressor Protein p53, Proto-Oncogene Proteins p21(ras), Survivors, Disease-Free Survival, ras Proteins, Cyclin-Dependent Kinase Inhibitor p16, Carcinoma, Pancreatic Ductal, Tumor Burden, Smad4 Protein, Kaplan-Meier Estimate

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