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Yeh DW, Liu C, Hernandez JC, Tahara SM, Tsukamoto H, Machida K. Polycomb repressive complex 2 binds and stabilizes NANOG to suppress differentiation-related genes to promote self-renewal. iScience 2023; 26:107035. [PMID: 37448562 PMCID: PMC10336160 DOI: 10.1016/j.isci.2023.107035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/20/2023] [Accepted: 05/31/2023] [Indexed: 07/15/2023] Open
Abstract
The synergistic effect of alcohol and HCV mediated through TLR4 signaling transactivates NANOG, a pluripotency transcription factor important for the stemness of tumor-initiating stem-like cells (TICs). NANOG together with the PRC2 complex suppresses expression of oxidative phosphorylation (OXPHOS) genes to generate TICs. The phosphodegron sequence PEST domain of NANOG binds EED to stabilize NANOG protein by blocking E3 ligase recruitment and proteasome-dependent degradation, while the tryptophan-rich domain of NANOG binds EZH2 and SUZ12. Human ARID1A gene loss results in the resistance to combined FAO and PRC2 inhibition therapies due to reduction of mitochondrial ROS levels. CRISPR-Cas9-mediated ARID1A knockout and/or constitutively active CTNNB1 driver mutations promoted tumor development in humanized FRG HCC mouse models, in which use of an interface inhibitor antagonizing PRC2-NANOG binding and/or FAO inhibitor blocked tumor growth. Together, the PRC2-NANOG interaction becomes a new drug target for HCC via inducing differentiation-related genes, destabilizing NANOG protein, and suppressing NANOG activity.
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Affiliation(s)
- Da-Wei Yeh
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - Cheng Liu
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - Juan Carlos Hernandez
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - Stanley M. Tahara
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - Hidekazu Tsukamoto
- Department of Pathology; University of Southern California, Los Angeles, CA 90033, USA
- Southern California Research Center for ALPD and Cirrhosis, Los Angeles, CA 90033, USA
| | - Keigo Machida
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA 90033, USA
- Southern California Research Center for ALPD and Cirrhosis, Los Angeles, CA 90033, USA
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Gao H, Niu W, He Z, Gao C, Peng C, Niu J. SEC61G plays an oncogenic role in hepatocellular carcinoma cells. Cell Cycle 2020; 19:3348-3361. [PMID: 33171060 DOI: 10.1080/15384101.2020.1843816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most aggressive malignant diseases and requires more effective prevention and treatment strategies. Mutations or overexpression of endoplasmic reticulum (ER) proteins have been frequently identified in a solid tumor, suggesting that ER proteins play an important role in tumor development. SEC61G, a component of Sec61 complex located in the membrane of the human ER, has been revealed a potential relevance in glioblastoma multiforme. Analyses from TCGA database showed that SEC61G was overexpressed in HCC. Additionally, the expression of SEC61G mRNA was associated with the survival time of HCC patients. We verified that the higher expression of SEC61G in HCC tissues than paracancerous tissues. Moreover, knockdown of SEC61G inhibited cell proliferation and induced cell apoptosis in vitro. Besides, SEC61G was required for cell migration and invasion, conferring a potential role for SEC61G in tumor transfer. Taken together, our results revealed the role of SEC61G in HCC cells. Further detailed understanding of the signaling networks underlying SEC61G involvement in HCC cells would make SEC61G as a viable therapeutic target for pharmaceutical intervention of HCC.
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Affiliation(s)
- Huijie Gao
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital, Shandong University , Jinan, Shandong, PR China.,Department of Hepatopancreatobiliary Surgery, Institute of Laparoscopic Minimally Invasive Surgery of Shandong University , Jinan, Shandong, PR China
| | - Weibo Niu
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital, Shandong University , Jinan, Shandong, PR China.,Department of Hepatopancreatobiliary Surgery, Institute of Laparoscopic Minimally Invasive Surgery of Shandong University , Jinan, Shandong, PR China
| | - Zhaobin He
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital, Shandong University , Jinan, Shandong, PR China.,Department of Hepatopancreatobiliary Surgery, Institute of Laparoscopic Minimally Invasive Surgery of Shandong University , Jinan, Shandong, PR China
| | - Chao Gao
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital, Shandong University , Jinan, Shandong, PR China.,Department of Hepatopancreatobiliary Surgery, Institute of Laparoscopic Minimally Invasive Surgery of Shandong University , Jinan, Shandong, PR China
| | - Cheng Peng
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital, Shandong University , Jinan, Shandong, PR China.,Department of Hepatopancreatobiliary Surgery, Institute of Laparoscopic Minimally Invasive Surgery of Shandong University , Jinan, Shandong, PR China
| | - Jun Niu
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital, Shandong University , Jinan, Shandong, PR China.,Department of Hepatopancreatobiliary Surgery, Institute of Laparoscopic Minimally Invasive Surgery of Shandong University , Jinan, Shandong, PR China
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Zhu W, Qing X, Yan F, Luo Y, Li Y, Zhou X. Can the Contrast-Enhanced Ultrasound Washout Rate Be Used to Predict Microvascular Invasion in Hepatocellular Carcinoma? ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:1571-1580. [PMID: 28502665 DOI: 10.1016/j.ultrasmedbio.2017.04.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 03/31/2017] [Accepted: 04/04/2017] [Indexed: 06/07/2023]
Abstract
The objective of this study was to investigate use of the washout rate of hepatocellular carcinoma on contrast-enhanced ultrasound (CEUS) for pre-operative determination of the presence of microvascular invasion. The study included 271 patients who underwent liver resection for hepatocellular carcinoma between April 2008 and December 2012, and were examined with contrast-enhanced ultrasound before surgery. Patients were followed up at 3-mo intervals for 3 y. Four washout patterns were classified according to the start time of washout: rapid, portal, delayed and slow. Rapid washout, presence of two or more tumors and tumor size ≥5 cm were identified as independent pre-operative predictors of microvascular invasion on multivariate analysis. Recurrence rates for patients with none, one, two or three predictors were 22.6%, 34.7%, 57.6% and 75.0%, respectively. In combination with tumor number and tumor size, contrast-enhanced ultrasound washout rate may have a role in identifying hepatocellular carcinoma patients with microvascular invasion.
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Affiliation(s)
- Wei Zhu
- Echo Lab of Cardiology Department/Department of Ultrasound, West China Hospital, Chengdu, Sichuan, China
| | - Xiachuan Qing
- Department of Ultrasound, Nanchong Central Hospital, Nanchong, Sichuan, China
| | - Feng Yan
- Department of Ultrasound, West China Hospital, Chengdu, Sichuan, China
| | - Yan Luo
- Department of Ultrasound, West China Hospital, Chengdu, Sichuan, China
| | - Yongzhong Li
- Department of Ultrasound, West China Hospital, Chengdu, Sichuan, China
| | - Xiang Zhou
- Department of Ultrasound, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Nakanishi M, Chuma M, Hige S, Omatsu T, Yokoo H, Nakanishi K, Kamiyama T, Kubota K, Haga H, Matsuno Y, Onodera Y, Kato M, Asaka M. Relationship between diffusion-weighted magnetic resonance imaging and histological tumor grading of hepatocellular carcinoma. Ann Surg Oncol 2011; 19:1302-9. [PMID: 21927976 DOI: 10.1245/s10434-011-2066-8] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND Intrahepatic and extrahepatic recurrence remains a significant problem for hepatocellular carcinoma (HCC). The aim of this study was to determine the usefulness of diffusion-weighted magnetic resonance imaging (DWI) for histological tumor grading and preoperative prediction of early HCC recurrence within 6 months of operation. METHODS A total of 44 patients who had undergone hepatic resection for HCC (50 nodules) were reviewed retrospectively. DWI was performed within 30 days before hepatectomy, and apparent diffusion coefficients (ADCs) were measured using 2 methods: mean ADC and minimum-spot ADC. Relationships between ADCs and histological differentiation and between ADCs and early recurrence of HCC were analyzed. RESULTS Mean ADC was significantly lower in poorly differentiated HCC (n=18, 1.07±0.15×10(-3) mm2/s) than in moderately differentiated HCC (n=29, 1.29±0.21×10(-3) mm2/s; P<.05). Minimum-spot ADC was significantly lower in poorly differentiated HCC (n=18, 0.69±0.19×10(-3) mm2/s) than in well-differentiated HCC (n=3, 1.15±0.10×10(-3) mm2; P<.01) or in moderately differentiated HCC (n=29, 0.98±0.18×10(-3) mm2/s; P<.0001). Of 34 patients who were able to be observed for >6 months after resection, 9 showed early recurrence. Minimum-spot ADC was significantly lower in patients with early recurrence (n=9, 0.64±0.24×10(-3) mm2/s) than in patients without early recurrence (n=25, 0.88±0.19×10(-3) mm2/s; P<.05). On multivariate analysis, minimum-spot ADC was a significant risk factor for early recurrence (P<.05). CONCLUSION Quantitative measurement of ADC of HCC with magnetic resonance diffusion weighted imaging is a promising functional imaging tool in the prediction of histological grade and early recurrence before treatment.
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Affiliation(s)
- Mitsuru Nakanishi
- Department of Gastroenterology and Hematology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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