Cited by 89Pancreatic and Hepatic Oncology ResearchCancer Genomics and DiagnosticsGenetic factors in colorectal cancer

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Multiregion whole-exome sequencing of intraductal papillary mucinous neoplasms reveals frequent somatic KLF4 mutations predominantly in low-grade regions

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Abstract

Objective: Intraductal papillary mucinous neoplasms (IPMNs) are non-invasive precursor lesions that can progress to invasive pancreatic cancer and are classified as low-grade or high-grade based on the morphology of the neoplastic epithelium. We aimed to compare genetic alterations in low-grade and high-grade regions of the same IPMN in order to identify molecular alterations underlying neoplastic progression. Design: We performed multiregion whole exome sequencing on tissue samples from 17 IPMNs with both low-grade and high-grade dysplasia (76 IPMN regions, including 49 from low-grade dysplasia and 27 from high-grade dysplasia). We reconstructed the phylogeny for each case, and we assessed mutations in a novel driver gene in an independent cohort of 63 IPMN cyst fluid samples. Results: Our multiregion whole exome sequencing identified KLF4, a previously unreported genetic driver of IPMN tumorigenesis, with hotspot mutations in one of two codons identified in >50% of the analyzed IPMNs. Mutations in KLF4 were significantly more prevalent in low-grade regions in our sequenced cases. Phylogenetic analyses of whole exome sequencing data demonstrated diverse patterns of IPMN initiation and progression. Hotspot mutations in KLF4 were also identified in an independent cohort of IPMN cyst fluid samples, again with a significantly higher prevalence in low-grade IPMNs. Conclusion: Hotspot mutations in KLF4 occur at high prevalence in IPMNs. Unique among pancreatic driver genes, KLF4 mutations are enriched in low-grade IPMNs. These data highlight distinct molecular features of low-grade and high-grade dysplasia and suggest diverse pathways to high-grade dysplasia via the IPMN pathway.

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Metadata

Authors
Fujikura, K., Hosoda, W., Felsenstein, M., Song, Q., Reiter, J. G., Zheng, L., Beleva Guthrie, V., Rincon, N., Dal Molin, M., Dudley, J., Cohen, J. D., Wang, P., Fischer, C. G., Braxton, A. M., Noë, M., Jongepier, M., Fernández-del Castillo, C., Mino-Kenudson, M., Schmidt, C. M., Yip-Schneider, M. T., Lawlor, R. T., Salvia, R., Roberts, N. J., Thompson, E. D., Karchin, R., Lennon, A. M., Jiao, Y., & Wood, L. D.
Affiliations
  • Johns Hopkins University (US)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
  • Stanford Medicine (US)
  • Personal Genome Diagnostics, Baltimore, Maryland, USA
  • Ludwig Center for Cancer Genetics and Therapeutics, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
  • Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
  • Harvard University (US)
  • Indiana University School of Medicine (US)
  • University of Verona (IT)
Corresponding author
Wood, Laura D
Venue
Gut
Publisher
BMJ
Published
2020-10-07
Volume
70
Issue
5
Pages
928-939
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W3092302697
Cited by
89
References
49
Citations by year
2026: 11 · 2025: 18 · 2024: 17 · 2023: 19 · 2022: 13 · 2021: 11
FWCI
3.88
Type
journal article
Language
en
Open access
Locations
  • Gut (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • IUScholarWorks (Indiana University) (submittedVersion)
  • Purdue University Indianapolis (Indiana University) (submittedVersion)
Funders
  • American Cancer Society (RSG-18-143-01-CSM)
  • Kaya Tuncer Career Development Award in Gastrointestinal Cancer Prevention
  • Rolfe Pancreatic Cancer Foundation
  • Joseph C Monastra Foundation
  • CAMS Innovation Fund for Medical Sciences (2016-I2M-1-001, 2019-I2M-1-001)
  • The Gerald O Mann Charitable Foundation
  • American Gastroenterological Association (AGA-Bernard Lee Schwartz Foundation Research Schol)
  • Carol S. and Robert M. Long Pancreatic Cancer Research Fund
  • Susan Wojcicki and Denis Troper
  • Sidney Kimmel Foundation for Cancer Research (Kimmel Scholar Award)
  • Emerson Collective Cancer Research Fund
  • Associazione Italiana Ricerca Cancro (12182)
  • Buffone Family Gastrointestinal Cancer Research Fund
  • Virginia and D.K. Ludwig Fund for Cancer Research
  • Sol Goldman Sequencing Facility at Johns Hopkins
  • National Institute of Diabetes and Digestive and Kidney Diseases (K08 DK107781)
  • Sol Goldman Pancreatic Cancer Research Center
  • Howard Hughes Medical Institute
  • American Association for Cancer Research (AACR-Incyte Corporation Career Development Award f)
  • Lustgarten Foundation
  • National Cancer Institute (P50 CA62924)
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 › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
Keywords
intraductal papillary mucinous neoplasm, low-grade dysplasia, high-grade dysplasia, pancreatic cancer progression, somatic mutations, tumor phylogeny, cyst fluid
MeSH terms
Exome Sequencing, Pancreatic Intraductal Neoplasms, Kruppel-Like Factor 4, Adenocarcinoma, Mucinous, Carcinoma, Papillary, Humans, Mutation, Retrospective Studies, Biomarkers, Tumor, Neoplasm Grading

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