Cited by 399Cholangiocarcinoma and Gallbladder Cancer StudiesPediatric Hepatobiliary Diseases and TreatmentsGlioma Diagnosis and Treatment

Mutations in isocitrate dehydrogenase 1 and 2 occur frequently in intrahepatic cholangiocarcinomas and share hypermethylation targets with glioblastomas

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Wang, P, Dong, Q, Zhang, C, Kuan, P-F, Liu, Y, Jeck, W R, Andersen, J B, Jiang, W +18 more·2013·Oncogene

Abstract

Mutations in the genes encoding isocitrate dehydrogenase, IDH1 and IDH2, have been reported in gliomas, myeloid leukemias, chondrosarcomas and thyroid cancer. We discovered IDH1 and IDH2 mutations in 34 of 326 (10%) intrahepatic cholangiocarcinomas. Tumor with mutations in IDH1 or IDH2 had lower 5-hydroxymethylcytosine and higher 5-methylcytosine levels, as well as increased dimethylation of histone H3 lysine 79 (H3K79). Mutations in IDH1 or IDH2 were associated with longer overall survival (P=0.028) and were independently associated with a longer time to tumor recurrence after intrahepatic cholangiocarcinoma resection in multivariate analysis (P=0.021). IDH1 and IDH2 mutations were significantly associated with increased levels of p53 in intrahepatic cholangiocarcinomas, but no mutations in the p53 gene were found, suggesting that mutations in IDH1 and IDH2 may cause a stress that leads to p53 activation. We identified 2309 genes that were significantly hypermethylated in 19 cholangiocarcinomas with mutations in IDH1 or IDH2, compared with cholangiocarcinomas without these mutations. Hypermethylated CpG sites were significantly enriched in CpG shores and upstream of transcription start sites, suggesting a global regulation of transcriptional potential. Half of the hypermethylated genes overlapped with DNA hypermethylation in IDH1-mutant gliobastomas, suggesting the existence of a common set of genes whose expression may be affected by mutations in IDH1 or IDH2 in different types of tumors.

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Authors
Wang, P., Dong, Q., Zhang, C., Kuan, P.-F., Liu, Y., Jeck, W. R., Andersen, J. B., Jiang, W., Savich, G. L., Tan, T.-X., Auman, J. T., Hoskins, J. M., Misher, A. D., Moser, C. D., Yourstone, S. M., Kim, J. W., Cibulskis, K., Getz, G., Hunt, H. V., Thorgeirsson, S. S., Roberts, L. R., Ye, D., Guan, K.-L., Xiong, Y., Qin, L.-X., & Chiang, D. Y.
Affiliations
  • Fudan University (CN)
  • Shanghai Medical College of Fudan University (CN)
  • University of North Carolina at Chapel Hill (US)
  • National Institutes of Health (US)
  • Mayo Clinic (US)
  • Atrium Health Wake Forest Baptist (US)
  • Broad Institute (US)
Corresponding author
  • Xiong, Y
  • Qin, L-X
  • Chiang, D Y
Venue
Oncogene
Published
2012-07-23
Volume
32
Issue
25
Pages
3091-3100
ISSN
  • 0950-9232 (ISSN-L)
  • 1476-5594
OpenAlex
W2018041848
Cited by
399
References
48
Citations by year
2026: 20 · 2025: 19 · 2024: 26 · 2023: 22 · 2022: 19 · 2021: 38 · 2020: 38 · 2019: 31 · 2018: 27 · 2017: 38 · 2016: 29 · 2015: 37 · 2014: 30 · 2013: 22 · 2012: 3
FWCI
29.96
Type
journal article
Language
en
Open access
Locations
  • Oncogene (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • Fudan University
  • National Institutes of Health (5r01ca149569-05)
  • National Human Genome Research Institute (R01HG006272)
  • National Cancer Institute (R01-CA149569, R01CA163834)
Topics
  • Health Sciences › Medicine › Surgery › Cholangiocarcinoma and Gallbladder Cancer Studies
  • Health Sciences › Medicine › Surgery › Pediatric Hepatobiliary Diseases and Treatments
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
Keywords
IDH mutation, IDH1, IDH2, intrahepatic cholangiocarcinoma, DNA hypermethylation, 5-hydroxymethylcytosine, 5-methylcytosine, p53 activation, overall survival, tumor recurrence, glioblastoma, transcriptional regulation, tumor resection
MeSH terms
Base Sequence, Bile Duct Neoplasms, Bile Ducts, Intrahepatic, Brain Neoplasms, Glioblastoma, Histones, Humans, Isocitrate Dehydrogenase, Liver Neoplasms, Mutation, Neoplasm Recurrence, Local, Tumor Suppressor Protein p53, Sequence Analysis, DNA, Cholangiocarcinoma, CpG Islands, DNA Methylation

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