1
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Iyer AS, Shaik MR, Raufman JP, Xie G. The Roles of Zinc Finger Proteins in Colorectal Cancer. Int J Mol Sci 2023; 24:10249. [PMID: 37373394 DOI: 10.3390/ijms241210249] [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: 05/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Despite colorectal cancer remaining a leading worldwide cause of cancer-related death, there remains a paucity of effective treatments for advanced disease. The molecular mechanisms underlying the development of colorectal cancer include altered cell signaling and cell cycle regulation that may result from epigenetic modifications of gene expression and function. Acting as important transcriptional regulators of normal biological processes, zinc finger proteins also play key roles in regulating the cellular mechanisms underlying colorectal neoplasia. These actions impact cell differentiation and proliferation, epithelial-mesenchymal transition, apoptosis, homeostasis, senescence, and maintenance of stemness. With the goal of highlighting promising points of therapeutic intervention, we review the oncogenic and tumor suppressor roles of zinc finger proteins with respect to colorectal cancer tumorigenesis and progression.
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Affiliation(s)
- Aishwarya S Iyer
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Mohammed Rifat Shaik
- Department of Medicine, University of Maryland Medical Center Midtown Campus, Baltimore, MD 21201, USA
| | - Jean-Pierre Raufman
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Guofeng Xie
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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2
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Sofi S, Williamson L, Turvey GL, Scoynes C, Hirst C, Godwin J, Brockdorff N, Ainscough J, Coverley D. Prion-like domains drive CIZ1 assembly formation at the inactive X chromosome. J Biophys Biochem Cytol 2022; 221:213067. [PMID: 35289833 PMCID: PMC8927971 DOI: 10.1083/jcb.202103185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 11/11/2021] [Accepted: 12/10/2021] [Indexed: 12/30/2022] Open
Abstract
CIZ1 forms large assemblies at the inactive X chromosome (Xi) in female fibroblasts in an Xist lncRNA-dependent manner and is required for accurate maintenance of polycomb targets genome-wide. Here we address requirements for assembly formation and show that CIZ1 undergoes two direct interactions with Xist, via independent N- and C-terminal domains. Interaction with Xist, assembly at Xi, and complexity of self-assemblies formed in vitro are modulated by two alternatively spliced glutamine-rich prion-like domains (PLD1 and 2). PLD2 is dispensable for accumulation at existing CIZ1-Xi assemblies in wild-type cells but is required in CIZ1-null cells where targeting, assembly, and enrichment for H3K27me3 and H2AK119ub occur de novo. In contrast, PLD1 is required for both de novo assembly and accumulation at preexisting assemblies and, in vitro, drives formation of a stable fibrillar network. Together they impart affinity for RNA and a complex relationship with repeat E of Xist. These data show that alternative splicing of two PLDs modulates CIZ1's ability to build large RNA-protein assemblies.
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Affiliation(s)
- Sajad Sofi
- Department of Biology, University of York, York, UK.,York Biomedical Research Institute, University of York, York, UK
| | - Louisa Williamson
- Department of Biology, University of York, York, UK.,York Biomedical Research Institute, University of York, York, UK
| | - Gabrielle L Turvey
- Department of Biology, University of York, York, UK.,York Biomedical Research Institute, University of York, York, UK
| | - Charlotte Scoynes
- Department of Biology, University of York, York, UK.,College of Science and Engineering, University of Edinburgh, Edinburgh, UK
| | - Claire Hirst
- Department of Biology, University of York, York, UK
| | - Jonathan Godwin
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Neil Brockdorff
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Justin Ainscough
- Department of Biology, University of York, York, UK.,York Biomedical Research Institute, University of York, York, UK
| | - Dawn Coverley
- Department of Biology, University of York, York, UK.,York Biomedical Research Institute, University of York, York, UK
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3
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Han J, Xu G, Dong Q, Jing G, Liu Q, Liu J. Elevated expression of CDKN1A-interacting zinc finger protein 1 in intimal hyperplasia after endovascular arterial injury. ALL LIFE 2022. [DOI: 10.1080/26895293.2021.2024893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Ju Han
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Neuroimmunology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, People’s Republic of China
| | - Guangyan Xu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Neuroimmunology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, People’s Republic of China
- Department of Neurology, Shandong Provincial Qianfoshan Hospital, Weifang Medical University, Weifang, People’s Republic of China
| | - Qihao Dong
- Department of Neurology, Zibo Central Hospital, Weifang, People’s Republic of China
| | - Guoxian Jing
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Neuroimmunology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, People’s Republic of China
- Shandong First Medical University, Taian, People’s Republic of China
| | - Qiang Liu
- Institute of Microvascular Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, People’s Republic of China
| | - Ju Liu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Neuroimmunology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, People’s Republic of China
- Institute of Microvascular Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, People’s Republic of China
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4
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Identification of DHX9 as a cell cycle regulated nucleolar recruitment factor for CIZ1. Sci Rep 2020; 10:18103. [PMID: 33093612 PMCID: PMC7582970 DOI: 10.1038/s41598-020-75160-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 10/12/2020] [Indexed: 11/15/2022] Open
Abstract
CIP1-interacting zinc finger protein 1 (CIZ1) is a nuclear matrix associated protein that facilitates a number of nuclear functions including initiation of DNA replication, epigenetic maintenance and associates with the inactive X-chromosome. Here, to gain more insight into the protein networks that underpin this diverse functionality, molecular panning and mass spectrometry are used to identify protein interaction partners of CIZ1, and CIZ1 replication domain (CIZ1-RD). STRING analysis of CIZ1 interaction partners identified 2 functional clusters: ribosomal subunits and nucleolar proteins including the DEAD box helicases, DHX9, DDX5 and DDX17. DHX9 shares common functions with CIZ1, including interaction with XIST long-non-coding RNA, epigenetic maintenance and regulation of DNA replication. Functional characterisation of the CIZ1-DHX9 complex showed that CIZ1-DHX9 interact in vitro and dynamically colocalise within the nucleolus from early to mid S-phase. CIZ1-DHX9 nucleolar colocalisation is dependent upon RNA polymerase I activity and is abolished by depletion of DHX9. In addition, depletion of DHX9 reduced cell cycle progression from G1 to S-phase in mouse fibroblasts. The data suggest that DHX9-CIZ1 are required for efficient cell cycle progression at the G1/S transition and that nucleolar recruitment is integral to their mechanism of action.
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Wang Y, Wang JN, Chen XZ, Hu QX, Liu QQ, Wu G. Heat stress-induced expression of Px-pdrg and Px-aspp2 in insecticide-resistant and -susceptible Plutella xylostella. BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:177-184. [PMID: 31559929 DOI: 10.1017/s0007485319000543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
p53, DNA damage regulated gene (PDRG) and apoptosis-stimulating p53 protein 2 (ASPP2) are p53-related genes which can promote apoptosis. The full-length cDNA sequence of the Px-pdrg and Px-aspp2 genes were characterized and their mRNA expression dynamics under heat stress were studied in diamondback moth (DBM) Plutella xylostella collected from Fuzhou, China. The full-length cDNA of Px-pdrg and Px-aspp2 spans 721 and 4201 bp, containing 395 and 3216 bp of the open reading frame, which encode a putative protein comprising 130 and 1072 amino acids with a calculated molecular weight of 14.58 and 118.91 kDa, respectively. As compared to 25°C, both Px-pdrg and Px-aspp2 were upregulated in chlorpyrifos-resistant (Rc) and -susceptible (Sm) strains of DBM adults and pupae under heat stress. In addition, Rc DBM showed a significantly higher expression level of Px-pdrg and Px-aspp2 in contrast to Sm DBM. The results indicate that high temperature can significantly promote apoptosis process, especially in Rc-DBM. Significant fitness cost in Rc-DBM might be associated with drastically higher transcript abundance of Px-pdrg and Px-aspp2 under the heat stress.
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Affiliation(s)
- Yu Wang
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jing Nan Wang
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xue Zhun Chen
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qi Xing Hu
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qi Qing Liu
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Gang Wu
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), Fujian Agriculture and Forestry University, Fuzhou, China
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Li Y, Zhou X, Liu J, Gao N, Yang R, Wang Q, Ji J, Ma L, He Q. Dihydroartemisinin inhibits the tumorigenesis and metastasis of breast cancer via downregulating CIZ1 expression associated with TGF-β1 signaling. Life Sci 2020; 248:117454. [PMID: 32088211 DOI: 10.1016/j.lfs.2020.117454] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/05/2020] [Accepted: 02/19/2020] [Indexed: 12/25/2022]
Abstract
AIMS Dihydroartemisinin (DHA) is currently considered as the promising cancer therapeutic drug. In this study, we aimed to investigate the anti-proliferative and anti-metastasis effects of DHA. MAIN METHODS Utilizing breast cancer cells MCF-7, MDA-MB-231 and BT549, cell proliferation, migration and invasion were detected. RT-qPCR was performed to detect CIZ1, TGF-β1 and Snail expression, and the interactions of these related molecules were analyzed by GeneMANIA database. Western blot detected CIZ1, TGF-β1/Smads signaling and Snail expression in DHA-treated cells, in TGFβ1-induced cells with enhanced metastatic capacity, and in cells treated with DHA plus TGFβ1/TGFβ1 inhibitor SD-208. KEY FINDINGS Results indicated DHA inhibited breast cancer cell proliferation and migration, with more potent effects compared with that of artemisinin. RT-qPCR and Western blot showed DHA inhibited CIZ1, TGF-β1 and Snail expression, and these molecules were shown to have protein-protein interactions by bioinformatics. Furthermore, TGFβ1-treatment enhanced MCF-7 migration and invasion, and CIZ1, TGF-β1/Smads signaling and snail activities; DHA, SD-208, combination of DHA and SD-208 reversed these conditions, preliminarily proving the cascade regulation between TGF-β1 signaling and CIZ1. MCF-7 xenografts model demonstrated the inhibition of DHA on tumor burden, and its mechanisms and well-tolerance in vivo; combination of DHA and SD-208 tried by us for the first time showed better treatment effects, but possible liver impairment made its use still keep cautious. SIGNIFICANCE DHA treatment inhibits the proliferation and metastasis of breast cancer, through suppressing TGF-β1/Smad signaling and CIZ1, suggesting the promising potential of DHA as a well-tolerated antitumor TGF-β1 pathway inhibitor.
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Affiliation(s)
- Yue Li
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
| | - Xiaoyan Zhou
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Jiali Liu
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Ning Gao
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Ruihua Yang
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Qi Wang
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Jing Ji
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Ling Ma
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Qian He
- Department of Clinical Laboratories, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
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7
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Chen X, Wang P, Wang S, Li J, Ou T, Zeng X. CIZ1 knockdown suppresses the proliferation of bladder cancer cells by inducing apoptosis. Gene 2019; 719:143946. [DOI: 10.1016/j.gene.2019.143946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 12/11/2022]
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8
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Huang X, Liu J, Mo X, Liu H, Wei C, Huang L, Chen J, Tian C, Meng Y, Wu G, Xie W, P.C. FJ, Liu Z, Tang W. Systematic profiling of alternative splicing events and splicing factors in left- and right-sided colon cancer. Aging (Albany NY) 2019; 11:8270-8293. [PMID: 31586988 PMCID: PMC6814588 DOI: 10.18632/aging.102319] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 09/21/2019] [Indexed: 02/07/2023]
Abstract
Left- and right-sided colon cancer (LC and RC) differ substantially in their molecular characteristics and prognoses, and are thus treated using different strategies. We systematically analyzed alternative splicing (AS) events and splicing factors in LC and RC. RNA-seq data were used for genome-wide profiling of AS events that could distinguish LC from RC. The Exon Skip splicing pattern was more common in RC, while the Retained Intron pattern was more common in LC. The AS events that were upregulated in RC were enriched for genes in the axon guidance pathway, while those that were upregulated in LC were enriched for genes in immune-related pathways. Prognostic models based on differentially expressed AS events were built, and a prognostic signature based on these AS events performed well for risk stratification in colon cancer patients. A correlation network of differentially expressed AS events and differentially expressed splicing factors was constructed, and RBM25 was identified as the hub gene in the network. In conclusion, large differences in AS events may contribute to the phenotypic differences between LC and RC. The differentially expressed AS events reported herein could be used as biomarkers and treatment targets for colon cancer.
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Affiliation(s)
- Xiaoliang Huang
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Jungang Liu
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Xianwei Mo
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Haizhou Liu
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Chunyin Wei
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Lingxu Huang
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Jianhong Chen
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Chao Tian
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Yongsheng Meng
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Guo Wu
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Weishun Xie
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Franco Jeen P.C.
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Zujun Liu
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
| | - Weizhong Tang
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning 530021, Guangxi Zhuang Autonomous Region, The People’s Republic of China
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CIZ1 Expression Is Upregulated in Hemangioma of the Tongue. Pathol Oncol Res 2018; 25:1653-1658. [PMID: 30456533 DOI: 10.1007/s12253-018-0495-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/10/2018] [Indexed: 12/27/2022]
Abstract
Hemangioma is a vascular neoplasm and one of the most common benign tumors. The pathogenesis of hemangioma has not been fully understood. CIZ1 (Cip1-interacting zinc finger protein 1) is a nuclear protein and the binding partner of p21. Dysregulation of CIZ1 expression has been reported in various types of cancerous tissues. In this study, we examined CIZ1 expression in hemangioma of the tongue and explored its function in vascular endothelial cells, the proliferative cell type in hemangioma. Immunohistochemistry showed that CIZ1 was highly expressed in hemangioma of the tongue while its expression is minimal in the normal tongue tissues. In vitro, knockdown of CIZ1 expression by shRNA transfection significantly reduced the proliferation and migration of human umbilical vein endothelium cells (HUVECs), suggesting a positive role of CIZ1 in endothelial cell proliferation and migration. Therefore, CIZ1 might involve in pathogenesis of hemangioma of the tongue by regulation of endothelial cell functions.
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Swarts DRA, Stewart ER, Higgins GS, Coverley D. CIZ1-F, an alternatively spliced variant of the DNA replication protein CIZ1 with distinct expression and localisation, is overrepresented in early stage common solid tumours. Cell Cycle 2018; 17:2268-2283. [PMID: 30280956 PMCID: PMC6226236 DOI: 10.1080/15384101.2018.1526600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
CIZ1 promotes cyclin-dependent DNA replication and resides in sub-nuclear foci that are part of the protein nuclear matrix (NM), and in RNA assemblies that are enriched at the inactive X chromosome (Xi) in female cells. It is subjected to alternative splicing, with specific variants implicated in adult and pediatric cancers. CIZ1-F is characterized by a frame shift that results from splicing exons 8–12 leading to inclusion of a short alternative reading frame (ARF), excluding the previously characterized C-terminal NM anchor domain. Here, we apply a set of novel variant-selective molecular tools targeted to the ARF to profile the expression of CIZ1-F at both transcript and protein levels, with focus on its relationship with the RNA-dependent and -independent fractions of the NM. Unlike full-length CIZ1, CIZ1-F does not accumulate at Xi, though like full-length CIZ1 it does resist extraction with DNase. Notably, CIZ1-F is sensitive to RNase identifying it as part of the RNA-fraction of the NM. In quiescent cells CIZ1-F transcript expression is suppressed and CIZ1-F protein is excluded from the nucleus, with re-expression not observed until the second cell cycle after exit from quiescence. Importantly, CIZ1-F is over-expressed in common solid tumors including colon and breast, pronounced in early stage but not highly-proliferative late stage tumors. Moreover, expression was significantly higher in hormone receptor negative breast tumors than receptor positive tumors. Together these data show that CIZ1-F is expressed in proliferating cells in an unusual cell cycle-dependent manner, and suggest that it may have potential as a tumor biomarker.
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Affiliation(s)
| | - Emma R Stewart
- a Department of Biology , The University of York , York , UK
| | | | - Dawn Coverley
- a Department of Biology , The University of York , York , UK
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11
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Zhou X, Liu Q, Wada Y, Liao L, Liu J. CDKN1A-interacting zinc finger protein 1 is a novel biomarker for lung squamous cell carcinoma. Oncol Lett 2017; 15:183-188. [PMID: 29285191 PMCID: PMC5738676 DOI: 10.3892/ol.2017.7282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 09/22/2017] [Indexed: 12/25/2022] Open
Abstract
CDKN1A-interacting zinc finger protein 1 (CIZ1), a nuclear protein that participates in DNA replication, is involved in the pathogenesis of several types of cancer. However, the role of CIZ1 in lung squamous cell carcinoma (LSCC) is not fully understood. In the present study, the expression of CIZ1 in tissue microarrays and surgical samples of human LSCCs was examined. CIZ1 expression was found to be significantly increased in LSCC tissues compared with adjacent tissues or normal controls, whereas expression of a CIZ1-interacting protein, p21Cip1/Waf1, was decreased. CIZ1 staining intensity and CIZ1-positive vascular invasion were positively correlated with at least two categories of the Tumor-Node-Metastasis (TNM) staging system (T stage, N stage or TNM stage). It was also observed that CIZ1 was specifically expressed in the vascular cells of LSCC tissues. These results indicate that overexpression of CIZ1 may contribute to the growth and angiogenesis of LSCC, thus CIZ1 could represent a biomarker for diagnosis and a target for therapeutic intervention.
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Affiliation(s)
- Xiaojun Zhou
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Qiang Liu
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Youichiro Wada
- The Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 153-8904, Japan
| | - Lin Liao
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Ju Liu
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
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12
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Sun CB, Zhao AY, Ji S, Han XQ, Sun ZC, Wang MC, Zheng FC. Expression of annexin A5 in serum and tumor tissue of patients with colon cancer and its clinical significance. World J Gastroenterol 2017; 23:7168-7173. [PMID: 29093625 PMCID: PMC5656464 DOI: 10.3748/wjg.v23.i39.7168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 06/20/2017] [Accepted: 08/08/2017] [Indexed: 02/07/2023] Open
Abstract
AIM To investigate the expression of annexin A5 in serum and tumor tissue of patients with colon cancer and to analyze its clinical significance.
METHODS Ninety-three patients with colon cancer treated at our hospital between February 2013 and March 2016 were included in an observation group, and 40 healthy individuals were included in a control group. Enzyme-linked immunosorbent assay was performed to determine the serum level of annexin A5, while immunohistochemistry was performed to determine the expression of annexin A5 in cancer tissues.
RESULTS The serum level of annexin A5 was 0.184 ± 0.043 ng/mL in the observation group, which was significantly higher than that in the control group (P < 0.05). Annexin A5 expression was detected in 79.31% of the patients with lymph node metastasis, which was significantly higher than that in patients without lymph node metastasis (P < 0.05). Moreover, annexin A5 expression was detected in 86.96% of the patients with stage III to IV disease, which was significantly higher than that in patients with stage I to II disease (P < 0.05). The serum level of annexin A5 was 0.215 ± 0.044 ng/mL in patients whose tumors were positive for annexin A5 expression, which was significantly higher than that in patients whose tumors were negative for annexin A5 expression (P < 0.05). The serum level of annexin A5 was correlated with annexin A5 expression in colon cancer tissues (r = 0.312, P < 0.05). When a cutoff value of > 0.148 ng/mL for serum level of annexin A5 was used in the diagnosis of colon cancer, the sensitivity was 83.90%, and the specificity was 57.50%.
CONCLUSION For patients with colon cancer, annexin A5 expression in cancer tissues is related to lymph node metastasis and tumor grade. Serum level of annexin A5 is related to annexin A5 expression in cancer tissues and is of diagnostic relevance.
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Affiliation(s)
- Chong-Bing Sun
- Department of General Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China
| | - Ai-Yan Zhao
- Department of General Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China
| | - Shuai Ji
- Department of Anorectal Surgery, Linqu People’s Hospital, Weifang 261000, Shandong Province, China
| | - Xiao-Qing Han
- Department of General Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China
| | - Zuo-Cheng Sun
- Department of General Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China
| | - Meng-Chun Wang
- Department of General Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China
| | - Fu-Chang Zheng
- Department of General Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China
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13
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Zhao C, Dai W, Qiu L. Molecular cloning, characterization and expression analysis of a novel PDRG1 gene from black tiger shrimp (Penaeus monodon). Genet Mol Biol 2017; 40:93-103. [PMID: 28257526 PMCID: PMC5409776 DOI: 10.1590/1678-4685-gmb-2016-0144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/28/2016] [Indexed: 11/22/2022] Open
Abstract
P53 And DNA Damage-Regulated Gene 1 (PDRG1) is a novel gene which plays an important role in chaperone-mediated protein folding. In the present study, the full-length complementary DNA (cDNA) sequence of the PDRG1 gene from Penaeus monodon (PmPDRG1) was cloned by the rapid amplification of cDNA ends (RACE) method. The cDNA of PmPDRG1 spans 1,613 bp, interrupted by only one short intron, and encodes a protein of 136 amino acids with calculated molecular weight of 15.49 kDa. The temporal expression profile of PmPDRG1 in different tissues and in different developmental stages of the ovary was investigated by real-time quantitative PCR (RT-qPCR). An RNA interference (RNAi) experiment was performed to study the relationship between P. monodon p53 (Pmp53) and PmPDRG1, and the results showed that the relative expression level of PmPDRG1 mRNA was notably up-regulated from 12 h to 96 h after Pmp53 was silenced both in ovary and hepatopancreas. To further explore the role of PmPDRG1 in ovarian development, dopamine (DA) and 5-hydroxytryptamine (5-HT)-injected shrimps were analyzed by RT-qPCR, indicating that PmPDRG1 may be involved in the regulation of ovarian development of P. monodon.
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Affiliation(s)
- Chao Zhao
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.,Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, China
| | - Wenting Dai
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.,College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai, China.,Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, China
| | - Lihua Qiu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.,Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, China.,Tropical Aquaculture Research and Development Center of South China Sea Fisheries Research Institute, Sanya, China
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14
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Emerging Roles for Ciz1 in Cell Cycle Regulation and as a Driver of Tumorigenesis. Biomolecules 2016; 7:biom7010001. [PMID: 28036012 PMCID: PMC5372713 DOI: 10.3390/biom7010001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/12/2016] [Accepted: 12/14/2016] [Indexed: 12/19/2022] Open
Abstract
Precise duplication of the genome is a prerequisite for the health and longevity of multicellular organisms. The temporal regulation of origin specification, replication licensing, and firing at replication origins is mediated by the cyclin-dependent kinases. Here the role of Cip1 interacting Zinc finger protein 1 (Ciz1) in regulation of cell cycle progression is discussed. Ciz1 contributes to regulation of the G1/S transition in mammalian cells. Ciz1 contacts the pre-replication complex (pre-RC) through cell division cycle 6 (Cdc6) interactions and aids localization of cyclin A- cyclin-dependent kinase 2 (CDK2) activity to chromatin and the nuclear matrix during initiation of DNA replication. We discuss evidence that Ciz1 serves as a kinase sensor that regulates both initiation of DNA replication and prevention of re-replication. Finally, the emerging role for Ciz1 in cancer biology is discussed. Ciz1 is overexpressed in common tumors and tumor growth is dependent on Ciz1 expression, suggesting that Ciz1 is a driver of tumor growth. We present evidence that Ciz1 may contribute to deregulation of the cell cycle due to its ability to alter the CDK activity thresholds that are permissive for initiation of DNA replication. We propose that Ciz1 may contribute to oncogenesis by induction of DNA replication stress and that Ciz1 may be a multifaceted target in cancer therapy.
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15
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Coverley D, Higgins G, West D, Jackson OT, Dowle A, Haslam A, Ainscough E, Chalkley R, White J. A quantitative immunoassay for lung cancer biomarker CIZ1b in patient plasma. Clin Biochem 2016; 50:336-343. [PMID: 27867087 PMCID: PMC5441127 DOI: 10.1016/j.clinbiochem.2016.11.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/15/2016] [Accepted: 11/16/2016] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Non-invasive tests for early detection of lung cancer are an important unmet clinical need. CIZ1b plasma biomarker can discriminate stage 1 lung cancer from within high-risk groups with clinically useful accuracy, with ROC AUCs in excess of 0.9 for two independent retrospective cohorts, and could therefore meet this need. Our aim was to characterise the native state of the biomarker and develop a quantitative immunoassay. DESIGN AND METHODS Selective denaturation, preparative electrophoresis and mass spectrometry of human plasma were used to characterise the biomarker and interaction partners. A sandwich ELISA was generated, and specificity for CIZ1b biomarker tested on lung cancer patient plasma. RESULTS CIZ1b biomarker is a denaturation-resistant complex between a C-terminal fragment of CIZ1 bearing the CIZ1b epitope specified by alternative splicing of exon14, and fibrinogen alpha chain. Reconstitution of the biomarker epitope with purified fibrinogen and CIZ1b, but not CIZ1a (non-alternatively spliced exon 14) confirmed the specificity of the results. The endogenous complex is highly stable in lung cancer plasma and can be quantified by pairing of a CIZ1b exon-junction specific antibody with detection of fibrinogen. Application of this sandwich ELISA to a prospectively collected development set of plasmas reveals the same level of accuracy as the western blot used to validate the discriminatory capability of the biomarker. CONCLUSIONS Unexpected and unusual molecular structure of CIZ1b in native plasma has complicated immunoassay design, and delayed translation of this promising biomarker. However, CIZ1b can now be measured using a high-throughput, hospital-friendly sandwich ELISA format, overcoming an important barrier to further clinical development and application of this blood test for early stage lung cancer.
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Affiliation(s)
- Dawn Coverley
- Cizzle Biotech, University of York, YO10 5DD, UK; Department of Biology, University of York, YO10 5YW, UK.
| | - Gillian Higgins
- Cizzle Biotech, University of York, YO10 5DD, UK; Department of Biology, University of York, YO10 5YW, UK
| | - Daniel West
- Cizzle Biotech, University of York, YO10 5DD, UK
| | - Oliver T Jackson
- Department of Biology, University of York, YO10 5YW, UK; Hull-York Medical School, University of Hull, HU6 7RX, UK
| | - Adam Dowle
- Department of Biology, University of York, YO10 5YW, UK
| | - Aidan Haslam
- Department of Biology, University of York, YO10 5YW, UK
| | - Eve Ainscough
- Cizzle Biotech, University of York, YO10 5DD, UK; Department of Biology, University of York, YO10 5YW, UK
| | - Rebecca Chalkley
- Cizzle Biotech, University of York, YO10 5DD, UK; Department of Biology, University of York, YO10 5YW, UK
| | - John White
- Department of Respiratory Medicine, York Teaching Hospital NHS Foundation Trust, YO31 8HE, UK
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16
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Xiao J, Vemula SR, Xue Y, Khan MM, Kuruvilla KP, Marquez-Lona EM, Cobb MR, LeDoux MS. Motor phenotypes and molecular networks associated with germline deficiency of Ciz1. Exp Neurol 2016; 283:110-20. [PMID: 27163549 DOI: 10.1016/j.expneurol.2016.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 04/20/2016] [Accepted: 05/03/2016] [Indexed: 12/26/2022]
Abstract
A missense mutation in CIZ1 (c.790A>G, p.S264G) was linked to autosomal dominant cervical dystonia in a large multiplex Caucasian pedigree (OMIM614860, DYT23). CIZ1 is a p21((Cip1/Waf1)) -interacting zinc finger protein, widely expressed in neural and extra-neural tissues, and plays a role in DNA synthesis at the G1/S cell-cycle checkpoint. The role of CIZ1 in the nervous system and relative contributions of gain- or loss- of function to the pathogenesis of CIZ1-associated dystonia remain indefinite. Using relative quantitative reverse transcriptase-PCR, cerebellum showed the highest expression levels of Ciz1 in adult mouse brain, over two fold higher than liver, and higher than striatum, midbrain and cerebral cortex. Overall, neural expression of Ciz1 increased with postnatal age. A Ciz1 gene-trap knock-out (KO) mouse model (Ciz1(-/-)) was generated to examine the functional role(s) of CIZ1 in the sensorimotor nervous system and contributions of CIZ1 to cell-cycle control in the mammalian brain. Ciz1 transcripts were absent in Ciz1(-/-) mice and reduced by approximately 50% in Ciz1(+/-) mice. Ciz1(-/-) mice were fertile but smaller than wild-type (WT) littermates. Ciz1(-/-) mice did not manifest dystonia, but exhibited mild motoric abnormalities on balance, open-field activity, and gait. To determine the effects of germline KO of Ciz1 on whole-genome gene expression in adult brain, total RNA from mouse cerebellum was harvested from 6 10-month old Ciz1(-/-) mice and 6 age- and gender- matched WT littermates for whole-genome gene expression analysis. Based on whole-genome gene-expression analyses, genes involved in cellular movement, cell development, cellular growth, cellular morphology and cell-to-cell signaling and interaction were up-regulated in Ciz1(-/-) mice. The top up-regulated pathways were metabolic and cytokine-cytokine receptor interactions. Down-regulated genes were involved in cell cycle, cellular development, cell death and survival, gene expression and cell morphology. Down-regulated networks included those related to metabolism, focal adhesion, neuroactive ligand-receptor interaction, and MAPK signaling. Based on pathway analyses, transcription factor 7-like 2 (TCF7L2), a member of the Wnt/β-catenin signaling pathway, was a major hub for down-regulated genes, whereas NF-κB was a major hub for up-regulated genes. In aggregate, these data suggest that CIZ1 may be involved in the post-mitotic differentiation of neurons in response to external signals and changes in gene expression may compensate, in part, for CIZ1 deficiency in our Ciz1(-/-) mouse model. Although CIZ1 deficiency was associated with mild motor abnormalities, germline loss of Ciz1 was not associated with dystonia on the C57BL/6J background.
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Affiliation(s)
- Jianfeng Xiao
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Satya R Vemula
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Yi Xue
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Mohammad M Khan
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Korah P Kuruvilla
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Esther M Marquez-Lona
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Madison R Cobb
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Mark S LeDoux
- Departments of Neurology, and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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17
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The Role of Cdkn1A-Interacting Zinc Finger Protein 1 (CIZ1) in DNA Replication and Pathophysiology. Int J Mol Sci 2016; 17:212. [PMID: 26861296 PMCID: PMC4783944 DOI: 10.3390/ijms17020212] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 12/23/2015] [Accepted: 02/02/2016] [Indexed: 12/24/2022] Open
Abstract
Cdkn1A-interacting zinc finger protein 1 (CIZ1) was first identified in a yeast-2-hybrid system searching for interacting proteins of CDK2 inhibitor p21Cip1/Waf1. Ciz1 also binds to CDK2, cyclin A, cyclin E, CDC6, PCNA, TCF4 and estrogen receptor-α. Recent studies reveal numerous biological functions of CIZ1 in DNA replication, cell proliferation, and differentiation. In addition, splicing variants of CIZ1 mRNA is associated with a variety of cancers and Alzheimer’s disease, and mutations of the CIZ1 gene lead to cervical dystonia. CIZ1 expression is increased in cancers and rheumatoid arthritis. In this review, we will summarize the biological functions and molecular mechanisms of CIZ1 in these physiological and pathological processes.
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