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Plum PS, Hess T, Bertrand D, Morgenstern I, Velazquez Camacho O, Jonas C, Alidousty C, Wagner B, Roessler S, Albrecht T, Becker J, Richartz V, Holz B, Hoppe S, Poh HM, Chia BKH, Chan CX, Pathiraja T, Teo AS, Marquardt JU, Khng A, Heise M, Fei Y, Thieme R, Klein S, Hong JH, Dima SO, Popescu I, Hoppe-Lotichius M, Buettner R, Lautem A, Otto G, Quaas A, Nagarajan N, Rozen S, Teh BT, Goeppert B, Drebber U, Lang H, Tan P, Gockel I, Schumacher J, Hillmer AM. Integrative genomic analyses of European intrahepatic cholangiocarcinoma: Novel ROS1 fusion gene and PBX1 as prognostic marker. Clin Transl Med 2024; 14:e1723. [PMID: 38877653 DOI: 10.1002/ctm2.1723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 04/20/2024] [Accepted: 05/13/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Cholangiocarcinoma (CCA) is a fatal cancer of the bile duct with a poor prognosis owing to limited therapeutic options. The incidence of intrahepatic CCA (iCCA) is increasing worldwide, and its molecular basis is emerging. Environmental factors may contribute to regional differences in the mutation spectrum of European patients with iCCA, which are underrepresented in systematic genomic and transcriptomic studies of the disease. METHODS We describe an integrated whole-exome sequencing and transcriptomic study of 37 iCCAs patients in Germany. RESULTS We observed as most frequently mutated genes ARID1A (14%), IDH1, BAP1, TP53, KRAS, and ATM in 8% of patients. We identified FGFR2::BICC1 fusions in two tumours, and FGFR2::KCTD1 and TMEM106B::ROS1 as novel fusions with potential therapeutic implications in iCCA and confirmed oncogenic properties of TMEM106B::ROS1 in vitro. Using a data integration framework, we identified PBX1 as a novel central regulatory gene in iCCA. We performed extended screening by targeted sequencing of an additional 40 CCAs. In the joint analysis, IDH1 (13%), BAP1 (10%), TP53 (9%), KRAS (7%), ARID1A (7%), NF1 (5%), and ATM (5%) were the most frequently mutated genes, and we found PBX1 to show copy gain in 20% of the tumours. According to other studies, amplifications of PBX1 tend to occur in European iCCAs in contrast to liver fluke-associated Asian iCCAs. CONCLUSIONS By analyzing an additional European cohort of iCCA patients, we found that PBX1 protein expression was a marker of poor prognosis. Overall, our findings provide insight into key molecular alterations in iCCA, reveal new targetable fusion genes, and suggest that PBX1 is a novel modulator of this disease.
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Affiliation(s)
- Patrick S Plum
- Department of General, Visceral, Cancer and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Timo Hess
- Center for Human Genetics, University Hospital of Marburg, Marburg, Germany
| | - Denis Bertrand
- Computational and Systems Biology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Isabelle Morgenstern
- General, Visceral and Transplant Surgery, Johannes Gutenberg University, Mainz, Germany
| | - Oscar Velazquez Camacho
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Christoph Jonas
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Christina Alidousty
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Britta Wagner
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Stephanie Roessler
- Institute of Pathology, University of Heidelberg, Heidelberg, Germany
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany
| | - Thomas Albrecht
- Institute of Pathology, University of Heidelberg, Heidelberg, Germany
- Liver Cancer Center Heidelberg (LCCH), Heidelberg, Germany
| | - Jessica Becker
- Institute of Human Genetics, University Hospital of Bonn, Bonn, Germany
| | - Vanessa Richartz
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Barbara Holz
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Sascha Hoppe
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Huay Mei Poh
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Burton Kuan Hui Chia
- Computational and Systems Biology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Cheryl Xueli Chan
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Thushangi Pathiraja
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Audrey Sm Teo
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Jens U Marquardt
- I Department of Medicine, Johannes Gutenberg University, Mainz, Germany
- Department of Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Alexis Khng
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Michael Heise
- General, Visceral and Transplant Surgery, Johannes Gutenberg University, Mainz, Germany
- Department for General, Visceral and Transplant Surgery, University Hospital Frankfurt, Goethe-University Frankfurt/Main, Frankfurt, Germany
| | - Yao Fei
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - René Thieme
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Sebastian Klein
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Jing Han Hong
- Duke-NUS Medical School, Cancer and Stem Cell Biology, Singapore, Singapore
- Division of Medical Science, Laboratory of Cancer Epigenome, National Cancer Centre Singapore, Singapore, Singapore
| | - Simona O Dima
- Center of Digestive Diseases and Liver Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | - Irinel Popescu
- Center of Digestive Diseases and Liver Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | - Maria Hoppe-Lotichius
- General, Visceral and Transplant Surgery, Johannes Gutenberg University, Mainz, Germany
| | - Reinhard Buettner
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Anja Lautem
- General, Visceral and Transplant Surgery, Johannes Gutenberg University, Mainz, Germany
| | - Gerd Otto
- Emeritus of the Division of Transplantation Surgery, University Medical Center, Mainz, Germany
| | - Alexander Quaas
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Niranjan Nagarajan
- Computational and Systems Biology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Steve Rozen
- Duke-NUS Medical School, Cancer and Stem Cell Biology, Singapore, Singapore
| | - Bin Tean Teh
- Duke-NUS Medical School, Cancer and Stem Cell Biology, Singapore, Singapore
| | - Benjamin Goeppert
- RKH Klinikum Ludwigsburg, Institute of Pathology and Neuropathology, Ludwigsburg, Germany
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Uta Drebber
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Hauke Lang
- General, Visceral and Transplant Surgery, Johannes Gutenberg University, Mainz, Germany
| | - Patrick Tan
- Duke-NUS Medical School, Cancer and Stem Cell Biology, Singapore, Singapore
- Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
| | - Ines Gockel
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | | | - Axel M Hillmer
- Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- Cancer Therapeutics and Stratified Oncology, Agency for Science, Technology and Research (A*STAR), Genome Institute of Singapore, Singapore, Singapore
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
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Chen T, Li K, Liu Z, Liu J, Wang Y, Sun R, Li Z, Qiu B, Zhang X, Ren G, Xu Y, Zhang Z. WDR5 facilitates EMT and metastasis of CCA by increasing HIF-1α accumulation in Myc-dependent and independent pathways. Mol Ther 2021; 29:2134-2150. [PMID: 33601056 DOI: 10.1016/j.ymthe.2021.02.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/15/2020] [Accepted: 02/11/2021] [Indexed: 12/30/2022] Open
Abstract
Cholangiocarcinoma (CCA) is a highly aggressive malignancy with extremely poor prognoses. The oncogenic role and prognostic value of c-Myc in CCA is not well elucidated. WD repeat domain 5 (WDR5) is a critical regulatory factor directly interacting with c-Myc to regulate c-Myc recruitment at chromosomal locations, but the interaction of WDR5 and c-Myc in CCA was uncovered. In our study, we detected WDR5 and c-Myc expression in all CCA types, including intrahepatic (iCCA), perihilar (pCCA), and distal (dCCA) CCA, and evaluated their prognostic significance. Consequently, we demonstrated that WDR5 was significantly correlated with poor prognosis of CCA and that WDR5 and c-Myc co-expression was a more sensitive prognostic factor. With in vitro and in vivo experiments and bioinformatics, we showed that WDR5 interacted with the Myc box IIIb (MBIIIb) motif of c-Myc and facilitated Myc-induced HIF1A transcription, thereby promoting the epithelial-mesenchymal transition (EMT), invasion, and metastasis of CCA. Moreover, WDR5 enhanced hypoxia-inducible factor 1 subunit α (HIF-1α) accumulation by binding with histone deacetylase 2 (HDAC2) and increasing histone 3 lysine 4 acetylation (H3K4ac) deacetylation of the prolyl hydroxylase domain protein 2 (PHD2) promoter, resulting in the attenuation of chromatin opening and PHD2 expression, and eventually leading to HIF-1α stabilization and accumulation. In conclusion, WDR5 facilitated EMT and metastasis of CCA by increasing HIF-1α accumulation in a Myc-dependent pathway to promote HIF-1α transcription and a Myc-independent pathway to stabilize HIF-1α.
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Affiliation(s)
- Tianli Chen
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Kangshuai Li
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Zengli Liu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jialiang Liu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yue Wang
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Rongqi Sun
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Zhipeng Li
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Department of General Surgery, Shandong Second Provincial General Hospital, Shandong Provincial ENT Hospital, Jinan, China
| | - Bo Qiu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xiaoming Zhang
- Department of General Surgery, Linyi People's Hospital, Linyi, China
| | - Guangli Ren
- Department of General Surgery, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Yunfei Xu
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Zongli Zhang
- Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
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Luo G, Li B, Duan C, Cheng Y, Xiao B, Yao F, Wei M, Tao Q, Feng C, Xia X, Zhou H, Zhao X, Dai R. c‑Myc promotes cholangiocarcinoma cells to overcome contact inhibition via the mTOR pathway. Oncol Rep 2017; 38:2498-2506. [PMID: 28849072 DOI: 10.3892/or.2017.5913] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 08/14/2017] [Indexed: 11/06/2022] Open
Abstract
The loss of contact inhibition is a hallmark of a wide range of human cancer cells. Yet, the precise mechanism behind this process is not fully understood. c‑Myc plays a pivotal role in carcinogenesis, but its involvement in regulating contact inhibition has not been explored to date. Here, we report that c‑Myc plays an important role in abrogating contact inhibition in human cholangiocarcinoma (CCA) cells. Our data show that the protein level of c‑Myc obviously decreased in contact-inhibited normal biliary epithelial cells. However, CCA cells sustain high protein levels of c‑Myc and keep strong proliferation ability in confluent conditions. Importantly, the suppression of c‑Myc by inhibitor or siRNA induced G0/G1 phase cell cycle arrest in confluent CCA cells. We demonstrate that the inhibition of c‑Myc suppressed the activity of mammalian target of rapamycin (mTOR) in confluent CCA cells, and mTOR inhibition induced G0/G1 phase cell cycle arrest in confluent CCA cells. In confluent CCA cells, the activity of Merlin is downregulated, and Yes-associated protein (YAP) sustains high levels of activity. Furthermore, YAP inhibition not only induced G0/G1 phase cell cycle arrest, but also decreased c‑Myc expression in confluent CCA cells. These results indicate that Merlin/YAP/c‑Myc/mTOR signaling axis promotes human CCA cell proliferation by overriding contact inhibition. We propose that overriding c‑Myc‑mediated contact inhibition is implicated in the development of CCA.
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Affiliation(s)
- Guosong Luo
- Department of Hepatobiliary Surgery of the Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Bin Li
- Liver Diseases Laboratory, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Chunyan Duan
- Department of Biochemistry and Molecular Biology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ying Cheng
- Department of Biochemistry and Molecular Biology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Bin Xiao
- Department of Biochemistry and Molecular Biology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Fuli Yao
- Department of Biochemistry and Molecular Biology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Mei Wei
- Department of Liver Diseases of the Affiliated Hospital of Chinese Traditional Medicine, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Qinghua Tao
- MOE Key Laboratory of Protein Sciences, Tsinghua University School of Life Sciences, Beijing 100084, P.R. China
| | - Chunhong Feng
- Department of Hepatobiliary Surgery of the Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xianming Xia
- Department of Hepatobiliary Surgery of the Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Hong Zhou
- Department of Biochemistry and Molecular Biology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaofang Zhao
- Liver Diseases Laboratory, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Rongyang Dai
- Liver Diseases Laboratory, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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