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Yang Z, Jiang Y, Wang L, Yu B, Cai H, Fan J, Zhang M. Prognosis and biological function of SGOL1 in clear cell renal cell carcinoma: a multiomics analysis. BMC Med Genomics 2024; 17:60. [PMID: 38383432 PMCID: PMC10882763 DOI: 10.1186/s12920-024-01825-7] [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: 10/09/2023] [Accepted: 02/06/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Shugoshin-1 (SGOL1) is a mammalian ortholog of Shugoshin in yeast and is essential for precise chromosome segregation during mitosis and meiosis. Aberrant SGOL1 expression was reported to be closely correlated with the malignant progression of various tumors. However, the expression pattern and biological function of SGOL1 in clear cell renal cell carcinoma (ccRCC) are unclear. METHODS The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases provide mRNA expression data and outcome information for ccRCC patients. Immunohistochemistry (IHC) of ccRCC tissue chips verified SGOL1 protein expression in ccRCC patients. Data processing and visualization were performed with the UALCAN, TISIDB, TIMER, GSCA, LinkedOmics, and starBase databases. Gene Ontology (GO) annotation and gene set enrichment analysis (GSEA) were used to identify SGOL1-related biological functions and signaling pathways. Immune infiltration analysis was performed using the TISIDB database, ssGSEA algorithm, and TCGA-KIRC cohort. The biological role of SGOL1 in ccRCC was investigated using a series of in vitro cytological assays, including the MTT assay, EdU staining assay, flow cytometry analysis, Transwell assay, and wound healing assay. RESULTS SGOL1 was highly expressed in ccRCC and linked to adverse clinicopathological parameters and unfavorable prognosis. Multivariate logistic regression and nomogram calibration suggested that SGOL1 might serve as an independent and reliable prognostic predictor of ccRCC. Functional enrichment analysis indicated that SGOL1 may be involved in the cell cycle, the p53 pathway, DNA replication, and T-cell activation. Furthermore, tumor microenvironment (TME) analysis suggested that SGOL1 was positively associated with Treg infiltration and immune checkpoint upregulation. In addition, we identified a potential SNHG17/PVT1/ZMIZ1-AS1-miR-23b-3p-SGOL1 axis correlated with ccRCC carcinogenesis and progression. Finally, we demonstrated that SGOL1 promoted ccRCC cell proliferation, migratory capacity, and invasion in vitro. CONCLUSIONS SGOL1 potentially functions as an oncogene in ccRCC progression and might contribute to the immunosuppressive TME by increasing Treg infiltration and checkpoint expression, suggesting that targeting SGOL1 could be a novel therapeutic strategy for the treatment of ccRCC patients.
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Affiliation(s)
- Zezhong Yang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Address: No.277 Yanta West Road, Xi'an, Shaanxi, 710061, China
| | - Yunzhong Jiang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Address: No.277 Yanta West Road, Xi'an, Shaanxi, 710061, China
| | - Lu Wang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Address: No.277 Yanta West Road, Xi'an, Shaanxi, 710061, China
| | - Binghe Yu
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Address: No.277 Yanta West Road, Xi'an, Shaanxi, 710061, China
| | - Hui Cai
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University. Address: No, 277 Yanta West Road, Xi'an, Shaanxi, 710061, China
| | - Jinhai Fan
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Address: No.277 Yanta West Road, Xi'an, Shaanxi, 710061, China.
| | - Mengzhao Zhang
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University. Address: No, 277 Yanta West Road, Xi'an, Shaanxi, 710061, China.
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2
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Jusino S, Rivera-Rivera Y, Chardón-Colón C, Rodríguez-Rodríguez PC, Román-González J, Juliá-Hernández VS, Isidro A, Mo Q, Saavedra HI. Sustained Shugoshin 1 downregulation reduces tumor growth and metastasis in a mouse xenograft tumor model of triple-negative breast cancer. Cell Div 2023; 18:6. [PMID: 37122033 PMCID: PMC10150544 DOI: 10.1186/s13008-023-00088-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/11/2023] [Indexed: 05/02/2023] Open
Abstract
BACKGROUND Triple-negative breast cancer (TBNC) is an aggressive breast cancer subtype with a poor prognosis. Shugoshin-1 (SGO1) protects chromatids from early separation. Previous studies from our group have demonstrated that transient SGO1 downregulation suppresses early stages of metastasis (the epithelial-to-mesenchymal transition, or EMT, cell invasion, and cell migration) in TNBC cells. Thus, the inhibition of SGO1 activity may represent a potential therapeutic intervention against cancers that progress to metastasis. Therefore, we aimed to investigate the effects of sustained shRNA-mediated SGO1 downregulation on tumor growth and metastasis in TBNC. To that end, female NOD-SCID Gamma (NSG) mice were injected with 2.5 × 106 shRNA Control (n = 10) or shRNA SGO1 (n = 10) MDA-MB-231 cells. After eight weeks, the number of mice with metastasis to the lymph nodes was calculated. Primary and metastatic tumors, as well as lung and liver tissue, were harvested, measured, sectioned, and stained with hematoxylin and eosin (H&E) stain. RESULTS Tumor growth and metastasis to the lymph nodes and lungs were significantly reduced in the shRNA SGO1-treated mice group, while metastasis to the liver tends to be lower in cells with downregulated SGO1, but it did not reach statistical significance. Furthermore, sustained SGO1 downregulation significantly reduced cell proliferation, cell migration, and invasion which correlated with lower levels of Snail, Slug, MMP2, MMP3, and MMP9. CONCLUSION The supression of SGO1 activity in TNBC harboring dysregulated expression of SGO1 may be a potential target for preventing breast cancer growth and metastasis.
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Affiliation(s)
- Shirley Jusino
- Department of Basic Sciences, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA
| | - Yainyrette Rivera-Rivera
- Department of Basic Sciences, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA
| | - Camille Chardón-Colón
- Department of Basic Sciences, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA
| | - Patricia C Rodríguez-Rodríguez
- Department of Biology, University of Puerto Rico-Ponce, 2151 Avenida Santiago de los Caballeros, Ponce, Puerto Rico, 00716, USA
| | - Janeishly Román-González
- Department of Basic Sciences, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA
| | - Valeria S Juliá-Hernández
- Department of Basic Sciences, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA
| | - Angel Isidro
- Department of Basic Sciences, Division of Physiology, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA
| | - Qianxing Mo
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, Florida, 33612, USA
| | - Harold I Saavedra
- Department of Basic Sciences, Ponce Health Sciences University-Ponce Research Institute, 395 Zona Industrial Reparada 2, Ponce, Puerto Rico, 00716-2348, USA.
- Department of Basic Sciences, Division of Pharmacology and Cancer Biology, Ponce Health Sciences University-Ponce Research Institute, 7004, Ponce, Puerto Rico, 00732-7004, USA.
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3
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Hu Q, Liu Q, Zhao Y, Zhang L, Li L. SGOL2 is a novel prognostic marker and fosters disease progression via a MAD2-mediated pathway in hepatocellular carcinoma. Biomark Res 2022; 10:82. [PMCID: PMC9664666 DOI: 10.1186/s40364-022-00422-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Abstract
Background Shugoshin-like protein 2 (SGOL2) is a centromeric protein that ensures the correct and orderly process of mitosis by protecting and maintaining centripetal adhesions during meiosis and mitosis. Here, we examined the potential role of SGOL2 in cancers, especially in hepatocellular carcinoma (HCC). Methods One hundred ninety-nine normal adjacent tissues and 202 HCC samples were collected in this study. Human HCC cells (SK-HEP-1 and HEP-3B) were employed in the present study. Immunohistochemistry, immunofluorescence, western blot, Co-Immunoprecipitation technique, and bioinformatic analysis were utilized to assess the role of SGOL2 in HCC development process. Results Overexpression of SGOL2 predicted an unfavorable prognosis in HCC by The Cancer Genome Atlas database (TCGA), which were further validated in our two independent cohorts. Next, 47 differentially expressed genes positively related to both SGOL2 and MAD2 were identified to be associated with the cell cycle. Subsequently, we demonstrated that SGOL2 downregulation suppressed the malignant activities of HCC in vitro and in vivo. Further investigation showed that SGOL2 promoted tumor proliferation by regulating MAD2-induced cell-cycle dysregulation, which could be reversed by the MAD2 inhibitor M2I-1. Consistently, MAD2 upregulation reversed the knockdown effects of SGOL2-shRNA in HCC. Moreover, we demonstrated that SGOL2 regulated MAD2 expression level by forming a SGOL2-MAD2 complex, which led to cell cycle dysreuglation of HCC cells. Conclusion SGOL2 acts as an oncogene in HCC cells by regulating MAD2 and then dysregulating the cell cycle, providing a potential therapeutic target in HCC. Supplementary Information The online version contains supplementary material available at 10.1186/s40364-022-00422-z.
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Affiliation(s)
- Qingqing Hu
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Qiuhong Liu
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Yalei Zhao
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Lingjian Zhang
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Lanjuan Li
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
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4
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Zhou Y, Lei D, Hu G, Luo F. A Cell Cycle-Related 13-mRNA Signature to Predict Prognosis in Hepatocellular Carcinoma. Front Oncol 2022; 12:760190. [PMID: 35419294 PMCID: PMC8995863 DOI: 10.3389/fonc.2022.760190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/17/2022] [Indexed: 12/02/2022] Open
Abstract
We aimed to propose a cell cycle-related multi/mRNA signature (CCS) for prognosis prediction and uncover new tumor-driver genes for hepatocellular carcinoma (HCC). Cell cycle-related gene sets and HCC samples with mRNA-Seq data were retrieved from public sources. The genes differentially expressed in HCCs relative to normal peritumoral tissues were extracted through statistical analysis. The CCS was constructed by Cox regression analyses. Predictive capacity and clinical practicality of the signature were evaluated and validated. The expression of the function-unknown genes in the CCS was determined by RT-qPCR. Candidate gene TICRR was selected for subsequent validation through functional experiments. A cell cycle-related 13-mRNA signature was generated from the exploratory cohort [The Cancer Genome Atlas (TCGA), n = 371)]. HCC cases were classified as high- vs. low-risk groups per overall survival (OS) [hazard ratio (HR) = 2.699]. Significantly, the CCS exhibited great predictive value for prognosis in three independent cohorts, particularly in GSE76427 cohort [area under the curve (AUC) = 0.835/0.822/0.808/0.821/0.826 at 1/2/3/4/5 years]. The nomogram constructed by integrating clinicopathological features with the CCS indicated high accuracy and practicability. Significant enrichment of tumorigenesis-associated pathways was observed in the high-risk patients by Gene Set Enrichment Analysis (GSEA). RT-qPCR revealed that TICRR was overexpressed in HCC samples. Increased TICRR expression implied poor prognosis in HCC patients. Furthermore, depletion of TICRR in HCC cells decreased cell proliferation and the G1/S transition. In conclusion, the established 13-CCS had efficacy in prognostic prediction of HCC patients. Additionally, TICRR was demonstrated as a tumor-driver gene for this deadly disease.
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Affiliation(s)
- Yang Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dengliang Lei
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Gangli Hu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Fang Luo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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5
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Sane A, Sridhar S, Sanyal K, Ghosh SK. Shugoshin ensures maintenance of the spindle assembly checkpoint response and efficient spindle disassembly. Mol Microbiol 2021; 116:1079-1098. [PMID: 34407255 DOI: 10.1111/mmi.14796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/07/2021] [Accepted: 08/15/2021] [Indexed: 11/27/2022]
Abstract
Shugoshin proteins are evolutionarily conserved across eukaryotes, with some species-specific cellular functions, ensuring the fidelity of chromosome segregation. They act as adaptors at various subcellular locales to mediate several protein-protein interactions in a spatio-temporal manner. Here, we characterize shugoshin (Sgo1) in the human fungal pathogen Candida albicans. We observe that Sgo1 retains its centromeric localization and performs its conserved functions of regulating the sister chromatid biorientation, centromeric condensin localization, and maintenance of chromosomal passenger complex (CPC). We identify novel roles of Sgo1 as a spindle assembly checkpoint (SAC) component with functions in maintaining a prolonged SAC response by retaining Mad2 and Bub1 at the kinetochores in response to improper kinetochore-microtubule attachments. Strikingly, we discover the in vivo localization of Sgo1 along the length of the mitotic spindle. Our results indicate that Sgo1 performs a hitherto unknown function of facilitating timely disassembly of the mitotic spindle in C. albicans. To summarize, this study unravels a unique functional adaptation of shugoshin in maintaining genomic stability.
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Affiliation(s)
- Aakanksha Sane
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay, Powai, India
| | - Shreyas Sridhar
- Molecular Biology & Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Kaustuv Sanyal
- Molecular Biology & Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Santanu K Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay, Powai, India
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6
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Deng M, Li S, Mei J, Lin W, Zou J, Wei W, Guo R. High SGO2 Expression Predicts Poor Overall Survival: A Potential Therapeutic Target for Hepatocellular Carcinoma. Genes (Basel) 2021; 12:genes12060876. [PMID: 34200261 PMCID: PMC8226836 DOI: 10.3390/genes12060876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/29/2021] [Accepted: 06/03/2021] [Indexed: 02/08/2023] Open
Abstract
Shugoshin2 (SGO2) may participate in the occurrence and development of tumors by regulating abnormal cell cycle division, but its prognostic value in hepatocellular carcinoma (HCC) remains unclear. In this study, we accessed The Cancer Genome Atlas (TCGA) database to get the clinical data and gene expression profile of HCC. The expression of SGO2 in HCC tissues and nontumor tissues and the relationship between SGO2 expression, survival, and clinicopathological parameters were analyzed. The SGO2 expression level was significantly higher in HCC tissues than in nontumor tissues (p < 0.001). An analysis from the Oncomine and Gene Expression Profiling Interactive Analysis 2 (GEPIA2) databases also demonstrated that SGO2 was upregulated in HCC (all p < 0.001). A logistic regression analysis revealed that the high expression of SGO2 was significantly correlated with gender, tumor grade, pathological stage, T classification, and Eastern Cancer Oncology Group (ECOG) score (all p < 0.05). The overall survival (OS) of HCC patients with higher SGO2 expression was significantly poor (p < 0.001). A multivariate analysis showed that age and high expression of SGO2 were independent predictors of poor overall survival (all p < 0.05). Twelve signaling pathways were significantly enriched in samples with the high-SGO2 expression phenotype. Ten proteins and 34 genes were significantly correlated with SGO2. In conclusion, the expression of SGO2 is closely related to the survival of HCC. It may be used as a potential therapeutic target and prognostic marker of HCC.
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Affiliation(s)
- Min Deng
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Shaohua Li
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Jie Mei
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Wenping Lin
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Jingwen Zou
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Wei Wei
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Rongping Guo
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (M.D.); (S.L.); (J.M.); (W.L.); (J.Z.); (W.W.)
- State Key Laboratory of Oncology in South China, Guangzhou 510060, China
- Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
- Correspondence: ; Tel.: +86-188-1980-9988
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7
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Liu D, Song AT, Qi X, van Vliet PP, Xiao J, Xiong F, Andelfinger G, Nattel S. Cohesin-protein Shugoshin-1 controls cardiac automaticity via HCN4 pacemaker channel. Nat Commun 2021; 12:2551. [PMID: 33953173 PMCID: PMC8100125 DOI: 10.1038/s41467-021-22737-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 03/16/2021] [Indexed: 12/12/2022] Open
Abstract
Endogenous cardiac pacemaker function regulates the rate and rhythm of cardiac contraction. The mutation p.Lys23Glu in the cohesin protein Shugoshin-1 causes severe heart arrhythmias due to sinoatrial node dysfunction and a debilitating gastrointestinal motility disorder, collectively termed the Chronic Atrial and Intestinal Dysrhythmia Syndrome, linking Shugoshin-1 and pacemaker activity. Hyperpolarization-activated, cyclic nucleotide-gated cation channel 4 (HCN4) is the predominant pacemaker ion-channel in the adult heart and carries the majority of the "funny" current, which strongly contributes to diastolic depolarization in pacemaker cells. Here, we study the mechanism by which Shugoshin-1 affects cardiac pacing activity with two cell models: neonatal rat ventricular myocytes and Chronic Atrial and Intestinal Dysrhythmia Syndrome patient-specific human induced pluripotent stem cell derived cardiomyocytes. We find that Shugoshin-1 interacts directly with HCN4 to promote and stabilize cardiac pacing. This interaction enhances funny-current by optimizing HCN4 cell-surface expression and function. The clinical p.Lys23Glu mutation leads to an impairment in the interaction between Shugoshin-1 and HCN4, along with depressed funny-current and dysrhythmic activity in induced pluripotent stem cell derived cardiomyocytes derived from Chronic Atrial and Intestinal Dysrhythmia Syndrome patients. Our work reveals a critical non-canonical, cohesin-independent role for Shugoshin-1 in maintaining cardiac automaticity and identifies potential therapeutic avenues for cardiac pacemaking disorders, in particular Chronic Atrial and Intestinal Dysrhythmia Syndrome.
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Affiliation(s)
- Donghai Liu
- Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Andrew Taehun Song
- Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada
- Cardiovascular Genetics, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine Research Centre, University of Montreal, Montréal, QC, Canada
| | - Xiaoyan Qi
- Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Patrick Piet van Vliet
- Cardiovascular Genetics, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine Research Centre, University of Montreal, Montréal, QC, Canada
- LIA (International Associated Laboratory) INSERM, Marseille, France
- LIA (International Associated Laboratory) Centre Hospitalier Universitaire Sainte-Justine, Montréal, QC, Canada
| | - Jiening Xiao
- Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Feng Xiong
- Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, QC, Canada
- Department of Pharmacology and Therapeutics, McGill University, Montréal, QC, Canada
| | - Gregor Andelfinger
- Cardiovascular Genetics, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine Research Centre, University of Montreal, Montréal, QC, Canada
- Department of Pediatrics, University of Montreal, Montréal, QC, Canada
- Department of Biochemistry, University of Montreal, Montréal, QC, Canada
| | - Stanley Nattel
- Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, QC, Canada.
- Department of Pharmacology and Therapeutics, McGill University, Montréal, QC, Canada.
- Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Essen, Germany.
- IHU LIRYC Institute, Fondation Bordeaux Université, Bordeaux, France.
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8
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Qi J, Zhou J, Tang XQ, Wang Y. Gene Biomarkers Derived from Clinical Data of Hepatocellular Carcinoma. Interdiscip Sci 2020; 12:226-236. [PMID: 32297074 DOI: 10.1007/s12539-020-00366-8] [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] [Received: 09/09/2019] [Revised: 03/05/2020] [Accepted: 04/02/2020] [Indexed: 12/25/2022]
Abstract
Hepatocellular carcinoma (HCC) is a common cancer of high mortality, mainly due to the difficulty in diagnosis during its clinical stage. Here we aim to find the gene biomarkers, which are of important significance for diagnosis and treatment. In this work, 3682 differentially expressed genes on HCC were firstly differentiated based on the Cancer Genome Atlas database (TCGA). Co-expression modules of these differentially expressed genes were then constructed based on the weighted correlation network algorithm. The correlation coefficient between the co-expression module and clinical data from the Broad GDAC Firehose was thereafter derived. Finally, the interactive network of genes was then constructed. Then, the hub genes were used to implement enrichment analysis and pathway analysis in the Database for Annotation, Visualization and Integrated Discovery (DAVID) database. Results revealed that the abnormally expressed genes in the module played an important role in the biological process including cell division, sister chromatid cohesion, DNA repair, and G1/S transition of mitotic cell cycle. Meanwhile, these genes also enriched in a few crucial pathways related to Cell cycle, Oocyte meiosis, and p53 signaling. Via investigating the closeness centrality of the interactive network, eight gene biomarkers including the CKAP2, TPX2, CDCA8, KIFC1, MELK, SGO1, RACGAP1, and KIAA1524 gene were discovered, whose functions had been indeed revealed to be correlated with HCC. This study, therefore, suggests that the abnormal expression of those eight genes may be taken as gene biomarkers of HCC.
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Affiliation(s)
- Jiaming Qi
- School of Science, Jiangnan University, Wuxi, 214122, China
| | - Jiaxing Zhou
- School of Science, Jiangnan University, Wuxi, 214122, China
| | - Xu-Qing Tang
- School of Science, Jiangnan University, Wuxi, 214122, China. .,Wuxi Engineering Research Center for Biocomputing, Jiangnan University, Wuxi, 214122, China.
| | - Yaolai Wang
- Wuxi Engineering Research Center for Biocomputing, Jiangnan University, Wuxi, 214122, China
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9
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Piché J, Van Vliet PP, Pucéat M, Andelfinger G. The expanding phenotypes of cohesinopathies: one ring to rule them all! Cell Cycle 2019; 18:2828-2848. [PMID: 31516082 PMCID: PMC6791706 DOI: 10.1080/15384101.2019.1658476] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/13/2019] [Accepted: 08/17/2019] [Indexed: 12/13/2022] Open
Abstract
Preservation and development of life depend on the adequate segregation of sister chromatids during mitosis and meiosis. This process is ensured by the cohesin multi-subunit complex. Mutations in this complex have been associated with an increasing number of diseases, termed cohesinopathies. The best characterized cohesinopathy is Cornelia de Lange syndrome (CdLS), in which intellectual and growth retardations are the main phenotypic manifestations. Despite some overlap, the clinical manifestations of cohesinopathies vary considerably. Novel roles of the cohesin complex have emerged during the past decades, suggesting that important cell cycle regulators exert important biological effects through non-cohesion-related functions and broadening the potential pathomechanisms involved in cohesinopathies. This review focuses on non-cohesion-related functions of the cohesin complex, gene dosage effect, epigenetic regulation and TGF-β in cohesinopathy context, especially in comparison to Chronic Atrial and Intestinal Dysrhythmia (CAID) syndrome, a very distinct cohesinopathy caused by a homozygous Shugoshin-1 (SGO1) mutation (K23E) and characterized by pacemaker failure in both heart (sick sinus syndrome followed by atrial flutter) and gut (chronic intestinal pseudo-obstruction) with no intellectual or growth delay. We discuss the possible impact of SGO1 alterations in human pathologies and the potential impact of the SGO1 K23E mutation in the sinus node and gut development and functions. We suggest that the human phenotypes observed in CdLS, CAID syndrome and other cohesinopathies can inform future studies into the less well-known non-cohesion-related functions of cohesin complex genes. Abbreviations: AD: Alzheimer Disease; AFF4: AF4/FMR2 Family Member 4; ANKRD11: Ankyrin Repeat Domain 11; APC: Anaphase Promoter Complex; ASD: Atrial Septal Defect; ATRX: ATRX Chromatin Remodeler; ATRX: Alpha Thalassemia X-linked intellectual disability syndrome; BIRC5: Baculoviral IAP Repeat Containing 5; BMP: Bone Morphogenetic Protein; BRD4: Bromodomain Containing 4; BUB1: BUB1 Mitotic Checkpoint Serine/Threonine Kinase; CAID: Chronic Atrial and Intestinal Dysrhythmia; CDK1: Cyclin Dependent Kinase 1; CdLS: Cornelia de Lange Syndrome; CHD: Congenital Heart Disease; CHOPS: Cognitive impairment, coarse facies, Heart defects, Obesity, Pulmonary involvement, Short stature, and skeletal dysplasia; CIPO: Chronic Intestinal Pseudo-Obstruction; c-kit: KIT Proto-Oncogene Receptor Tyrosine Kinase; CoATs: Cohesin Acetyltransferases; CTCF: CCCTC-Binding Factor; DDX11: DEAD/H-Box Helicase 11; ERG: Transcriptional Regulator ERG; ESCO2: Establishment of Sister Chromatid Cohesion N-Acetyltransferase 2; GJC1: Gap Junction Protein Gamma 1; H2A: Histone H2A; H3K4: Histone H3 Lysine 4; H3K9: Histone H3 Lysine 9; HCN4: Hyperpolarization Activated Cyclic Nucleotide Gated Potassium and Sodium Channel 4;p HDAC8: Histone deacetylases 8; HP1: Heterochromatin Protein 1; ICC: Interstitial Cells of Cajal; ICC-MP: Myenteric Plexus Interstitial cells of Cajal; ICC-DMP: Deep Muscular Plexus Interstitial cells of Cajal; If: Pacemaker Funny Current; IP3: Inositol trisphosphate; JNK: C-Jun N-Terminal Kinase; LDS: Loeys-Dietz Syndrome; LOAD: Late-Onset Alzheimer Disease; MAPK: Mitogen-Activated Protein Kinase; MAU: MAU Sister Chromatid Cohesion Factor; MFS: Marfan Syndrome; NIPBL: NIPBL, Cohesin Loading Factor; OCT4: Octamer-Binding Protein 4; P38: P38 MAP Kinase; PDA: Patent Ductus Arteriosus; PDS5: PDS5 Cohesin Associated Factor; P-H3: Phospho Histone H3; PLK1: Polo Like Kinase 1; POPDC1: Popeye Domain Containing 1; POPDC2: Popeye Domain Containing 2; PP2A: Protein Phosphatase 2; RAD21: RAD21 Cohesin Complex Component; RBS: Roberts Syndrome; REC8: REC8 Meiotic Recombination Protein; RNAP2: RNA polymerase II; SAN: Sinoatrial node; SCN5A: Sodium Voltage-Gated Channel Alpha Subunit 5; SEC: Super Elongation Complex; SGO1: Shogoshin-1; SMAD: SMAD Family Member; SMC1A: Structural Maintenance of Chromosomes 1A; SMC3: Structural Maintenance of Chromosomes 3; SNV: Single Nucleotide Variant; SOX2: SRY-Box 2; SOX17: SRY-Box 17; SSS: Sick Sinus Syndrome; STAG2: Cohesin Subunit SA-2; TADs: Topology Associated Domains; TBX: T-box transcription factors; TGF-β: Transforming Growth Factor β; TGFBR: Transforming Growth Factor β receptor; TOF: Tetralogy of Fallot; TREK1: TREK-1 K(+) Channel Subunit; VSD: Ventricular Septal Defect; WABS: Warsaw Breakage Syndrome; WAPL: WAPL Cohesin Release Factor.
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Affiliation(s)
- Jessica Piché
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
| | - Patrick Piet Van Vliet
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
- LIA (International Associated Laboratory), CHU Sainte-Justine, Montréal, QC, Canada
- LIA (International Associated Laboratory), INSERM, Marseille, U1251-13885, France
| | - Michel Pucéat
- LIA (International Associated Laboratory), CHU Sainte-Justine, Montréal, QC, Canada
- LIA (International Associated Laboratory), INSERM, Marseille, U1251-13885, France
- INSERM U-1251, MMG,Aix-Marseille University, Marseille, 13885, France
| | - Gregor Andelfinger
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
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10
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Jusino S, Saavedra HI. Role of E2Fs and mitotic regulators controlled by E2Fs in the epithelial to mesenchymal transition. Exp Biol Med (Maywood) 2019; 244:1419-1429. [PMID: 31575294 DOI: 10.1177/1535370219881360] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The epithelial-to-mesenchymal transition (EMT) is a complex cellular process in which epithelial cells acquire mesenchymal properties. EMT occurs in three biological settings: development, wound healing and fibrosis, and tumor progression. Despite occurring in three independent biological settings, EMT signaling shares some molecular mechanisms that allow epithelial cells to de-differentiate and acquire mesenchymal characteristics that confer cells invasive and migratory capacity to distant sites. Here we summarize the molecular mechanism that delineates EMT and we will focus on the role of E2 promoter binding factors (E2Fs) in EMT during tumor progression. Since the E2Fs are presently undruggable due to their control in numerous pivotal cellular functions and due to the lack of selectivity against individual E2Fs, we will also discuss the role of three mitotic regulators and/or mitotic kinases controlled by the E2Fs (NEK2, Mps1/TTK, and SGO1) in EMT that can be useful as drug targets. Impact statement The study of the epithelial to mesenchymal transition (EMT) is an active area of research since it is one of the early intermediates to invasion and metastasis—a state of the cancer cells that ultimately kills many cancer patients. We will present in this review that besides their canonical roles as regulators of proliferation, unregulated expression of the E2F transcription factors may contribute to cancer initiation and progression to metastasis by signaling centrosome amplification, chromosome instability, and EMT. Since our discovery that the E2F activators control centrosome amplification and mitosis in cancer cells, we have identified centrosome and mitotic regulators that may represent actionable targets against EMT and metastasis in cancer cells. This is impactful to all of the cancer patients in which the Cdk/Rb/E2F pathway is deregulated, which has been estimated to be most cancer patients with solid tumors.
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Affiliation(s)
- Shirley Jusino
- Basic Sciences Department, Division of Pharmacology and Toxicology, Ponce Research Institute, Ponce Health Sciences University, Ponce PR 00732, USA
| | - Harold I Saavedra
- Basic Sciences Department, Division of Pharmacology and Toxicology, Ponce Research Institute, Ponce Health Sciences University, Ponce PR 00732, USA
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11
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Nasim N, Ghafouri-Fard S, Soleimani S, Esfandi F, Shirkhoda M, Safaei M, Oskooei VK, Taheri M, Raheb J. Assessment of SGO1 and SGO1-AS1 contribution in breast cancer. Hum Antibodies 2019; 27:279-284. [PMID: 31156154 DOI: 10.3233/hab-190384] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Shugoshin-like protein 1 (SGO1) participated in the proper progression of mitosis. This fundamental role has indicated the importance of this gene in the pathogenesis of cancer as a disorder of mitotic cell division. A previous high throughput study of long non-coding RNAs (lncRNAs) expression in lung cancer has identified aberrant expression of SGO1-antisense 1 (SGO1-AS1) in these specimens. In the current study, we quantified expression of SGO1 and SGO1-AS1 in 39 breast cancer tissues and their paired adjacent non-cancerous tissues (ANCTs). Expression of SGO1-AS1 was considerably decreased in tumoral tissues compared with ANCTs (expression ratio = 0.49, P value = 0.03). However, we could not identify significant difference in expression of SGO1 between these two sets of specimens (expression ratio = 2.9, P value = 0.2). Transcript quantities of SGO1-AS1 were associated with age at disease onset (P= 0.01). Expression of either gene was associated with hormone receptors status or clinical features such as grade and stage. There was an inverse correlation between expressions of genes in both sets of samples. Finally, transcript amounts of SGO1-AS1 could distinguish these two sets of samples with accuracy of 63% (P value = 0.03). Our results imply significance of SGO1-AS1 in breast cancer and necessitate conduction of mechanistic studies to find the molecular pathways in this regard.
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Affiliation(s)
- Negin Nasim
- GenIran Lab, Tashkhis Gene Pajohesh, Tehran, Iran.,GenIran Lab, Tashkhis Gene Pajohesh, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,GenIran Lab, Tashkhis Gene Pajohesh, Tehran, Iran
| | | | | | - Mohammad Shirkhoda
- Department of Oncosurgery, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoomeh Safaei
- Department of Pathology, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Kholghi Oskooei
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jamshid Raheb
- National Institute of Genetic Engineering and Biotechnology, Tehran-Karaj Freeway, Tehran, Iran
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12
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Mu J, Fan L, Liu D, Zhu D. Overexpression of shugoshin1 predicts a poor prognosis for prostate cancer and promotes metastasis by affecting epithelial-mesenchymal transition. Onco Targets Ther 2019; 12:1111-1118. [PMID: 30799941 PMCID: PMC6371935 DOI: 10.2147/ott.s191157] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Objective The aim of the study was to investigate the role of shugoshinl (SGO1) in human prostate cancer (PCa). Materials and methods Quantitative real-time PCR (qRT-PCR) was used to determine the expression of SGO1 in PCa tissues and cell lines. The correlation between SGO1 expression and clinicopathological characteristics of PCa patients was analyzed using Kaplan–Meier analysis. SGO1 siRNA was successfully constructed and transfected into PCa cell lines (LNCaP and PC3). The knockdown efficacy was assessed by qRT-PCR. MTT assay and Transwell assay were conducted to observe the effect of SGO1 on the proliferation and invasion of PCa cell lines. Results SGO1-expression levels were found to be higher in the PCa tissues and cell lines. Correlation was identified between the expression of SGO1 and preoperative prostate-specific antigen (P=0.017), lymph-node metastasis (P=0.044), and Gleason score (P=0.041). Patients with higher SGO1 expression displayed more advanced clinicopathological characteristics in addition to a shorter biochemical recurrence-free survival time. Additionally, SGO1 knockdown resulted in the inhibition of PCa cell proliferation, migration, and invasion. Conclusion Taken together, the findings of the current study present evidence suggesting that SGO1 could inhibit the growth and invasion of PCa cells, highlighting its potential as a novel therapeutic target for the treatment of PCa.
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Affiliation(s)
- Jiagui Mu
- Department of Urology, The Second People's Hospital of Lianyungang, Lianyungang Tumor Hospital, Lianyungang Hospital Affiliated to Bengbu Medical University, Haizhou District, Lianyungang 22200, China,
| | - Li Fan
- Department of Urology, The Second People's Hospital of Lianyungang, Lianyungang Tumor Hospital, Lianyungang Hospital Affiliated to Bengbu Medical University, Haizhou District, Lianyungang 22200, China,
| | - Duo Liu
- Department of Urology, The Second People's Hospital of Lianyungang, Lianyungang Tumor Hospital, Lianyungang Hospital Affiliated to Bengbu Medical University, Haizhou District, Lianyungang 22200, China,
| | - Dongsheng Zhu
- Department of Graduate School Urology, Tianjin Medical University, Heping District, Tianjin 300000, China,
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13
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Jimenez M, Arechederra M, Ávila MA, Berasain C. Splicing alterations contributing to cancer hallmarks in the liver: central role of dedifferentiation and genome instability. Transl Gastroenterol Hepatol 2018; 3:84. [PMID: 30505971 DOI: 10.21037/tgh.2018.10.11] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 10/22/2018] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a major cause of cancer-related death worldwide. HCCs are molecularly heterogeneous tumors, and this complexity is to a great extent responsible for their poor response to conventional and targeted therapies. In this review we summarize recent evidence indicating that imbalanced expression of mRNA splicing factors can be a relevant source for this heterogeneity. We also discuss how these alterations may play a driver role in hepatocarcinogenesis by impinging on the general hallmarks of cancer. Considering the natural history of HCC, we focused on two pathogenic features that are characteristic of liver tumors: chromosomal instability and phenotypic de-differentiation. We highlight mechanisms connecting splicing derangement with these two processes and the enabling capacities acquired by liver cells along their neoplastic transformation. A thorough understanding of the alterations in the splicing machinery may also help to identify new HCC biomarkers and to design novel therapeutic strategies.
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Affiliation(s)
- Maddalen Jimenez
- Hepatology Program, CIMA, University of Navarra, Pamplona, Spain
| | | | - Matías A Ávila
- Hepatology Program, CIMA, University of Navarra, Pamplona, Spain.,CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.,Instituto de Investigaciones Sanitarias de Navarra-IdiSNA, Pamplona, Spain
| | - Carmen Berasain
- Hepatology Program, CIMA, University of Navarra, Pamplona, Spain.,CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.,Instituto de Investigaciones Sanitarias de Navarra-IdiSNA, Pamplona, Spain
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14
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Rao CV, Farooqui M, Asch AS, Yamada HY. Critical role of mitosis in spontaneous late-onset Alzheimer's disease; from a Shugoshin 1 cohesinopathy mouse model. Cell Cycle 2018; 17:2321-2334. [PMID: 30231670 DOI: 10.1080/15384101.2018.1515554] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
From early-onset Alzheimer's disease (EOAD) studies, the amyloid-beta hypothesis emerged as the foremost theory of the pathological causes of AD. However, how amyloid-beta accumulation is triggered and progresses toward senile plaques in spontaneous late-onset Alzheimer's disease (LOAD) in humans remains unanswered. Various LOAD facilitators have been proposed, and LOAD is currently considered a complex disease with multiple causes. Mice do not normally develop LOAD. Possibly due to the multiple causes, proposed LOAD facilitators have not been able to replicate spontaneous LOAD in mice, representing a disease modeling issue. Recently, we reported spontaneous late-onset development of amyloid-beta accumulation in brains of Shugoshin 1 (Sgo1) haploinsufficient mice, a cohesinopathy-mediated chromosome instability model. The result for the first time expands disease relevance of mitosis studies to a major disease other than cancers. Reverse-engineering of the model would shed light on the process of late-onset amyloid-beta accumulation in the brain and spontaneous LOAD development, and contribute to development of interventions for LOAD. This review will discuss the Sgo1 model, our current "three-hit hypothesis" regarding LOAD development with an emphasis on critical role of prolonged mitosis in amyloid-beta accumulation, and implications for human LOAD intervention and treatment. Abbreviations: Alzheimer's disease (AD); Late-onset Alzheimer's disease (LOAD); Early-onset Alzheimer's disease (EOAD); Shugoshin-1 (Sgo1); Chromosome Instability (CIN); apolipoprotein (Apoe); Central nervous system (CNS); Amyloid precursor protein (APP); N-methyl-d-aspartate (NMDA); Hazard ratio (HR); Cyclin-dependent kinase (CDK); Chronic Atrial Intestinal Dysrhythmia (CAID); beta-secretase 1 (BACE); phosphor-Histone H3 (p-H3); Research and development (R&D); Non-steroidal anti-inflammatory drugs (NSAIDs); Brain blood barrier (BBB).
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Affiliation(s)
- Chinthalapally V Rao
- a Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section , University of Oklahoma Health Sciences Center (OUHSC) , Oklahoma City , OK , USA
| | - Mudassir Farooqui
- a Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section , University of Oklahoma Health Sciences Center (OUHSC) , Oklahoma City , OK , USA
| | - Adam S Asch
- b Stephenson Cancer Center, Department of Medicine, Hematology/Oncology Section , University of Oklahoma Health Sciences Center (OUHSC) , Oklahoma City , OK , USA
| | - Hiroshi Y Yamada
- a Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section , University of Oklahoma Health Sciences Center (OUHSC) , Oklahoma City , OK , USA
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15
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Rao CV, Farooqui M, Zhang Y, Asch AS, Yamada HY. Spontaneous development of Alzheimer's disease-associated brain pathology in a Shugoshin-1 mouse cohesinopathy model. Aging Cell 2018; 17:e12797. [PMID: 29943428 PMCID: PMC6052391 DOI: 10.1111/acel.12797] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/04/2018] [Accepted: 05/27/2018] [Indexed: 12/14/2022] Open
Abstract
Spontaneous late-onset Alzheimer's disease (LOAD) accounts for more than 95% of all human AD. As mice do not normally develop AD and as understanding on molecular processes leading to spontaneous LOAD has been insufficient to successfully model LOAD in mouse, no mouse model for LOAD has been available. Existing mouse AD models are all early-onset AD (EOAD) models that rely on forcible expression of AD-associated protein(s), which may not recapitulate prerequisites for spontaneous LOAD. This limitation in AD modeling may contribute to the high failure rate of AD drugs in clinical trials. In this study, we hypothesized that genomic instability facilitates development of LOAD and tested two genomic instability mice models in the brain pathology at the old age. Shugoshin-1 (Sgo1) haploinsufficient (∓) mice, a model of chromosome instability (CIN) with chromosomal and centrosomal cohesinopathy, spontaneously exhibited a major feature of AD pathology; amyloid beta accumulation that colocalized with phosphorylated Tau, beta-secretase 1 (BACE), and mitotic marker phospho-Histone H3 (p-H3) in the brain. Another CIN model, spindle checkpoint-defective BubR1-/+ haploinsufficient mice, did not exhibit the pathology at the same age, suggesting the prolonged mitosis-origin of the AD pathology. RNA-seq identified ten differentially expressed genes, among which seven genes have indicated association with AD pathology or neuronal functions (e.g., ARC, EBF3). Thus, the model represents a novel model that recapitulates spontaneous LOAD pathology in mouse. The Sgo1-/+ mouse may serve as a novel tool for investigating mechanisms of spontaneous progression of LOAD pathology, for early diagnosis markers, and for drug development.
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Affiliation(s)
- Chinthalapally V. Rao
- Center for Cancer Prevention and Drug DevelopmentDepartment of MedicineHematology/Oncology SectionUniversity of Oklahoma Health Sciences Center (OUHSC)Oklahoma CityOklahoma
| | - Mudassir Farooqui
- Center for Cancer Prevention and Drug DevelopmentDepartment of MedicineHematology/Oncology SectionUniversity of Oklahoma Health Sciences Center (OUHSC)Oklahoma CityOklahoma
| | - Yuting Zhang
- Center for Cancer Prevention and Drug DevelopmentDepartment of MedicineHematology/Oncology SectionUniversity of Oklahoma Health Sciences Center (OUHSC)Oklahoma CityOklahoma
| | - Adam S. Asch
- Stephenson Cancer CenterDepartment of MedicineHematology/Oncology SectionUniversity of Oklahoma Health Sciences Center (OUHSC)Oklahoma CityOklahoma
| | - Hiroshi Y. Yamada
- Center for Cancer Prevention and Drug DevelopmentDepartment of MedicineHematology/Oncology SectionUniversity of Oklahoma Health Sciences Center (OUHSC)Oklahoma CityOklahoma
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16
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Sun W, He B, Yang B, Hu W, Cheng S, Xiao H, Yang Z, Wen X, Zhou L, Xie H, Shen X, Wu J, Zheng S. Genome-wide CRISPR screen reveals SGOL1 as a druggable target of sorafenib-treated hepatocellular carcinoma. J Transl Med 2018; 98:734-744. [PMID: 29467456 DOI: 10.1038/s41374-018-0027-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 12/28/2017] [Accepted: 01/06/2018] [Indexed: 02/08/2023] Open
Abstract
The genome-wide clustered regularly interspaced short palindromic repeats (CRISPR) screen is a powerful tool used to identify therapeutic targets that can be harnessed for cancer treatment. This study aimed to assess the efficacy of genome-wide CRISPR screening to identify druggable genes associated with sorafenib-treated hepatocellular carcinoma (HCC). A genome-scale CRISPR knockout (GeCKO v2) library containing 123,411 single guide RNAs (sgRNAs) was used to identify loss-of-function mutations conferring sorafenib resistance upon HCC cells. Resistance gene screens identified SGOL1 as an indicator of prognosis of patients treated with sorafenib. Of the 19,050 genes tested, the knockout screen identified inhibition of SGOL1 expression as the most-effective genetic suppressor of sorafenib activity. Analysis of the survival of 210 patients with HCC after hepatic resection revealed that high SGOL1 expression shortened overall survival (P = 0.021). Further, matched pairs analysis of the TCGA database revealed that SGOL1 is differentially expressed. When we used a lentivirus Cas9 vector to determine the effect of targeting SGOL1 with a specific sgRNA in HCC cells, we found that SGOL1 expression was efficiently inhibited and that loss of SGOL1 was associated with sorafenib resistance. Further, loss of SGOL1 from HCC cell decreased the cytotoxicity of sorafenib in vivo. We conclude that the CRISPR screen is a powerful tool for therapeutic target analysis of sorafenib treatment and that SGOL1 serves as a druggable target for HCC treated with sorafenib and an indicator of prognosis.
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Affiliation(s)
- Weijian Sun
- Department of Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China.,Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Bin He
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Beng Yang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Wendi Hu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Shaobing Cheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Heng Xiao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Zhengjie Yang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Xiaoyu Wen
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Haiyang Xie
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China.,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China
| | - Xian Shen
- Department of Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Jian Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China. .,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China. .,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China.
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China. .,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, Zhejiang Province, Hangzhou, 310003, China. .,Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, 310003, China.
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17
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Cui X, Li X, Li J, Wang X, Sun W, Cheng Z, Ding J, Wang H. inFRank: a ranking-based identification of influential genes in biological networks. Oncotarget 2018; 8:43810-43821. [PMID: 27623074 PMCID: PMC5546442 DOI: 10.18632/oncotarget.11878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/27/2016] [Indexed: 11/25/2022] Open
Abstract
Capturing the predominant driver genes is critical in the analysis of high-throughput experimental data; however, existing methods scarcely include the unique characters of biological networks. Herein we introduced a ranking-based computational framework (inFRank) to rank the proteins by their influence. Using inFRank, we identified the top 20 influential genes in hepatocellular carcinoma (HCC). Network analysis revealed a prominent community composed of 7 influential genes. Intriguingly, five genes among the community were critical for mitotic spindle assembly checkpoint (SAC), suggesting that dysregulation of SAC could be a distinct feature of HCC and targeting SAC-associated genes might be a promising therapeutic strategy. Cox regression analysis revealed that CDC20 exerted as an independent risk factor for patient survival, indicating that CDC20 could be a novel biomarker for HCC prognosis. inFRank was then used for pan-cancer study, and all of the most influential genes in 18 cancers were achieved. We identified altogether 19 genes that were important in multiple cancers, and observed that cancers originating from the same organ or function-related organs tended to share more influential genes. Collectively, our results demonstrated that the inFRank was a powerful approach for deep interpretation of high-throughput data and better understanding of complex diseases.
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Affiliation(s)
- Xiuliang Cui
- The International Cooperation Laboratory on Signal Transduction, Shanghai, 200433, China.,National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
| | - Xiaofeng Li
- National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
| | - Jing Li
- Department of Surgery, The Second Military Medical University, Shanghai, 200433, China
| | - Xue Wang
- The International Cooperation Laboratory on Signal Transduction, Shanghai, 200433, China.,National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
| | - Wen Sun
- The International Cooperation Laboratory on Signal Transduction, Shanghai, 200433, China.,National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
| | - Zhuo Cheng
- The International Cooperation Laboratory on Signal Transduction, Shanghai, 200433, China.,National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
| | - Jin Ding
- The International Cooperation Laboratory on Signal Transduction, Shanghai, 200433, China.,National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
| | - Hongyang Wang
- The International Cooperation Laboratory on Signal Transduction, Shanghai, 200433, China.,National Center for Liver Cancer, Eastern Hepatobiliary Surgery Institute, Shanghai, 200433, China
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18
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Rao CV, Asch AS, Yamada HY. Frequently mutated genes/pathways and genomic instability as prevention targets in liver cancer. Carcinogenesis 2016; 38:2-11. [PMID: 27838634 DOI: 10.1093/carcin/bgw118] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 09/16/2016] [Accepted: 11/09/2016] [Indexed: 12/18/2022] Open
Abstract
The incidence of liver cancer has increased in recent years. Worldwide, liver cancer is common: more than 600000 related deaths are estimated each year. In the USA, about 27170 deaths due to liver cancer are estimated for 2016. Liver cancer is highly resistant to conventional chemotherapy and radiotherapy. For all stages combined, the 5-year survival rate is 15-17%, leaving much to be desired for liver cancer prevention and therapy. Heterogeneity, which can originate from genomic instability, is one reason for poor outcome. About 80-90% of liver cancers are hepatocellular carcinoma (HCC), and recent cancer genome sequencing studies have revealed frequently mutated genes in HCC. In this review, we discuss the cause of the tumor heterogeneity based on the functions of genes that are frequently mutated in HCC. We overview the functions of the genes that are most frequently mutated (e.g. TP53, CTNNB1, AXIN1, ARID1A and WWP1) that portray major pathways leading to HCC and identify the roles of these genes in preventing genomic instability. Notably, the pathway analysis suggested that oxidative stress management may be critical to prevent accumulation of DNA damage and further mutations. We propose that both chromosome instability (CIN) and microsatellite instability (MIN) are integral to the hepatic carcinogenesis process leading to heterogeneity in HCC and that the pathways leading to heterogeneity may be targeted for prognosis, prevention and treatment.
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Affiliation(s)
- Chinthalapally V Rao
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), 975 NE 10th Street BRC1207, Oklahoma City, OK 73104, USA and
| | - Adam S Asch
- Stephenson Cancer Center, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK 73104, USA
| | - Hiroshi Y Yamada
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), 975 NE 10th Street BRC1207, Oklahoma City, OK 73104, USA and
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19
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Rao CV, Asch AS, Yamada HY. Emerging links among Chromosome Instability (CIN), cancer, and aging. Mol Carcinog 2016; 56:791-803. [PMID: 27533343 DOI: 10.1002/mc.22539] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 07/14/2016] [Accepted: 08/15/2016] [Indexed: 12/15/2022]
Abstract
Aneuploidy was predicted to cause cancer. To test the prediction, various Chromosome Instability (CIN) mice models that carry transgenic mutations in mitotic regulators have been created. The availability of these mice has aided researchers in discovering connections between CIN, cancer, and aging. This review will focus on recent interdisciplinary findings regarding how CIN and aneuploidy affect carcinogenesis, immune dysfunction, and aging. High CIN can be generated in vivo by various intrinsic alterations (e.g., gene mutation, epigenetic modification) and extrinsic/environmental challenges (e.g., biological, chemical, biophysical), while immune surveillance, cell death, and natural turnover can remove cells with CIN. CIN itself is mutagenic and may cause further cellular mutations, which can be carcinogenic. Mitotically damaged cells can activate senescence-related tumor suppressors (e.g., p21WAF1 , p27KIP1 , p16INK4A ), which may lead to tissue-level senescence/aging through inflammatory paracrine mechanisms called Senescence-Associated Secretory Phenotype (SASP) and Senescence Inflammatory Response (SIR). Organs with high CIN show altered gene expressions in both organ-specific and non-specific manners. Organ-specific gene expression signatures include activation of oncogenic pathways. Non-organ-specific gene expression signatures include metabolic changes and downregulations in immune functions. Immune surveillance normally targets senescent cells and tetraploid cells, a form of aneuploidy, for elimination. However, with partial immune dysfunction, immune surveillance is weakened with systemic CIN. In this case, more senescent cells and aneuploid cells survive, which further leads to an inflammatory, pro-tumorigenic, and senescent/aging microenvironment. We also discuss how we may intervene in this sequence of events to prevent CIN- or age-related carcinogenesis and/or some aspects of tissue aging. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Chinthalapally V Rao
- Department of Medicine, Center for Cancer Prevention and Drug Development, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, Oklahoma.,Stephenson Cancer Center, Hematology/Oncology, University of Oklahoma, Oklahoma City, Oklahoma
| | - Adam S Asch
- Stephenson Cancer Center, Hematology/Oncology, University of Oklahoma, Oklahoma City, Oklahoma
| | - Hiroshi Y Yamada
- Department of Medicine, Center for Cancer Prevention and Drug Development, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, Oklahoma.,Stephenson Cancer Center, Hematology/Oncology, University of Oklahoma, Oklahoma City, Oklahoma
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20
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Yamada HY, Kumar G, Zhang Y, Rubin E, Lightfoot S, Dai W, Rao CV. Systemic chromosome instability in Shugoshin-1 mice resulted in compromised glutathione pathway, activation of Wnt signaling and defects in immune system in the lung. Oncogenesis 2016; 5:e256. [PMID: 27526110 PMCID: PMC5007830 DOI: 10.1038/oncsis.2016.56] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/15/2016] [Accepted: 06/29/2016] [Indexed: 12/13/2022] Open
Abstract
Mitotic error-mediated chromosome instability (CIN) can lead to aneuploidy, chromothripsis, DNA damage and/or whole chromosome gain/loss. CIN may prompt rapid accumulation of mutations and genomic alterations. Thus, CIN can promote carcinogenesis. This CIN process results from a mutation in certain genes or environmental challenge such as smoking, and is highly prevalent in various cancers, including lung cancer. A better understanding of the effects of CIN on carcinogenesis will lead to novel methods for cancer prevention and treatment. Previously Shugoshin-1 (Sgo1(-/+)) mice, a transgenic mouse model of CIN, showed mild proneness to spontaneous lung and liver cancers. In this study, adoptive (T/B-cell based) immunity-deficient RAG1(-/-) Sgo1(-/+) double mutant mice developed lung adenocarcinomas more aggressively than did Sgo1(-/+) or RAG1(-/-) mice, suggesting immune system involvement in CIN-mediated lung carcinogenesis. To identify molecular causes of the lung adenocarcinoma, we used systems biology approach, comparative RNAseq, to RAG1(-/-) and RAG1(-/-) Sgo1(-/+). The comparative RNAseq data and follow-up analyses in the lungs of naive Sgo1(-/+) mice demonstrate that, (i) glutathione is depleted, making the tissue vulnerable to oxidative stress, (ii) spontaneous DNA damage is increased, (iii) oncogenic Wnt signaling is activated, (iv) both major branches of the immune system are weakened through misregulations in signal mediators such as CD80 and calreticulin and (v) the actin cytoskeleton is misregulated. Overall, the results show multi-faceted roles of CIN in lung carcinoma development in Sgo1(-/+) mice. Our model presents various effects of CIN and will help to identify potential targets to prevent CIN-driven carcinogenesis in the lung.
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Affiliation(s)
- H Y Yamada
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK, USA
| | - G Kumar
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK, USA
| | - Y Zhang
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK, USA
| | - E Rubin
- Department of Pathology, OU Medical Center, Oklahoma City, OK, USA
| | - S Lightfoot
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK, USA
| | - W Dai
- Department of Environmental Medicine, New York University Langone Medical Center, Tuxedo, NY, USA
| | - C V Rao
- Center for Cancer Prevention and Drug Development, Department of Medicine, Hematology/Oncology Section, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, OK, USA
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Teng YC, Shen ZQ, Kao CH, Tsai TF. Hepatocellular carcinoma mouse models: Hepatitis B virus-associated hepatocarcinogenesis and haploinsufficient tumor suppressor genes. World J Gastroenterol 2016; 22:300-325. [PMID: 26755878 PMCID: PMC4698494 DOI: 10.3748/wjg.v22.i1.300] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 10/14/2015] [Accepted: 11/24/2015] [Indexed: 02/06/2023] Open
Abstract
The multifactorial and multistage pathogenesis of hepatocellular carcinoma (HCC) has fascinated a wide spectrum of scientists for decades. While a number of major risk factors have been identified, their mechanistic roles in hepatocarcinogenesis still need to be elucidated. Many tumor suppressor genes (TSGs) have been identified as being involved in HCC. These TSGs can be classified into two groups depending on the situation with respect to allelic mutation/loss in the tumors: the recessive TSGs with two required mutated alleles and the haploinsufficient TSGs with one required mutated allele. Hepatitis B virus (HBV) is one of the most important risk factors associated with HCC. Although mice cannot be infected with HBV due to the narrow host range of HBV and the lack of a proper receptor, one advantage of mouse models for HBV/HCC research is the numerous and powerful genetic tools that help investigate the phenotypic effects of viral proteins and allow the dissection of the dose-dependent action of TSGs. Here, we mainly focus on the application of mouse models in relation to HBV-associated HCC and on TSGs that act either in a recessive or in a haploinsufficient manner. Discoveries obtained using mouse models will have a great impact on HCC translational medicine.
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