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Gong Y, Li H. CDK7 in breast cancer: mechanisms of action and therapeutic potential. Cell Commun Signal 2024; 22:226. [PMID: 38605321 PMCID: PMC11010440 DOI: 10.1186/s12964-024-01577-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/19/2024] [Indexed: 04/13/2024] Open
Abstract
Cyclin-dependent kinase 7 (CDK7) serves as a pivotal regulator in orchestrating cellular cycle dynamics and gene transcriptional activity. Elevated expression levels of CDK7 have been ubiquitously documented across a spectrum of malignancies and have been concomitantly correlated with adverse clinical outcomes. This review delineates the biological roles of CDK7 and explicates the molecular pathways through which CDK7 exacerbates the oncogenic progression of breast cancer. Furthermore, we synthesize the extant literature to provide a comprehensive overview of the advancement of CDK7-specific small-molecule inhibitors, encapsulating both preclinical and clinical findings in breast cancer contexts. The accumulated evidence substantiates the conceptualization of CDK7 as a propitious therapeutic target in breast cancer management.
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Affiliation(s)
- Ying Gong
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Huiping Li
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China.
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Zhang T, Li S, Tan YA, Na JH, Chen Z, Damle P, Chen X, Choi S, Mishra B, Wang D, Grossman SR, Jiang X, Li Y, Chen YT, Xiang JZ, Du YCN. Bcl-xL is translocated to the nucleus via CtBP2 to epigenetically promote metastasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.26.538373. [PMID: 37163116 PMCID: PMC10168309 DOI: 10.1101/2023.04.26.538373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Besides its mitochondria-based anti-apoptotic role, Bcl-xL also travels to the nucleus to promote cancer metastasis by upregulating global histone H3 trimethyl Lys4 (H3K4me3) and TGFβ transcription. How Bcl-xL is translocated into the nucleus and how nuclear Bcl-xL regulates H3K4me3 modification are not understood. Here, we report that C-terminal Binding Protein 2 (CtBP2) binds Bcl-xL via its N-terminus and translocates Bcl-xL into the nucleus. Knockdown of CtBP2 by shRNA decreases the nuclear portion of Bcl-xL and reverses Bcl-xL-induced cell migration and metastasis in mouse models. Furthermore, knockout of CtBP2 suppresses Bcl-xL transcription. The binding between Bcl-xL and CtBP2 is required for their interaction with MLL1, a histone H3K4 methyltransferase. Pharmacologic inhibition of MLL1 enzymatic activity reverses Bcl-xL-induced H3K4me3 and TGFβ mRNA upregulation as well as cell invasion. Moreover, cleavage under targets and release using nuclease (CUT&RUN) coupled with next generation sequencing reveals that H3K4me3 modifications are particularly enriched in the promotor region of genes encoding TGFβ and its signaling pathway in the cancer cells overexpressing Bcl-xL. Altogether, the metastatic function of Bcl-xL is mediated by its interaction with CtBP2 and MLL1.
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Affiliation(s)
- Tiantian Zhang
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Sha Li
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Yingcai Adrian Tan
- Genomics Resources Core Facility, Weill Cornell Medicine, New York, NY 10065, USA
| | - Joseph HyungJoon Na
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Zhengming Chen
- Division of Biostatistics, Department of Population Health Sciences, Weill Cornell Medicine, New York, NY 10065, USA
| | - Priyadarshan Damle
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Xiang Chen
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Soyoung Choi
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Bikash Mishra
- Immunology & Microbial Pathogenesis Graduate Program, Weill Cornell Medicine, New York, NY 10065, USA
| | - Dunrui Wang
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Steven R. Grossman
- USC Norris Comprehensive Cancer Center and Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Yi Li
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yao-Tseng Chen
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Jenny Z. Xiang
- Genomics Resources Core Facility, Weill Cornell Medicine, New York, NY 10065, USA
| | - Yi-Chieh Nancy Du
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY 10065, USA
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Dulińska-Litewka J, Felkle D, Dykas K, Handziuk Z, Krzysztofik M, Gąsiorkiewicz B. The role of cyclins in the development and progression of prostate cancer. Biomed Pharmacother 2022; 155:113742. [PMID: 36179490 DOI: 10.1016/j.biopha.2022.113742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/10/2022] [Accepted: 09/21/2022] [Indexed: 11/02/2022] Open
Abstract
The role of cyclins in hormone-dependent neoplasms is crucial in the development of the disease that is resistant to first-line therapy, as the example of breast cancer shows. However, in prostate cancer, cyclins are studied to a lesser extent. There are some well-described molecular pathways, including cyclins A1 and D1 signaling, however the role of other cyclins, e.g., D2, D3, E, and H, still requires further investigation. Recent studies indicate that cyclins regulate various cellular processes, not only the cell cycle. Furthermore, they remain in cross-talk with many other signaling pathways, e.g., MAPK/ERK, PI3K/Akt, and Notch. The androgen signaling axis, which is pivotal in prostate cancer progression, interferes with cyclin pathways at many levels. This article summarizes current knowledge on the influence of cyclins on prostate cancer progression by describing interactions between the androgen receptor and cyclins, as well as mechanisms underlying the development of resistance to currently used therapies.
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Affiliation(s)
- Joanna Dulińska-Litewka
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 31-034 Krakow, Mikołaja Kopernika Street 7C, Poland.
| | - Dominik Felkle
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 31-034 Krakow, Mikołaja Kopernika Street 7C, Poland
| | - Kacper Dykas
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 31-034 Krakow, Mikołaja Kopernika Street 7C, Poland
| | - Zuzanna Handziuk
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 31-034 Krakow, Mikołaja Kopernika Street 7C, Poland
| | - Marta Krzysztofik
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 31-034 Krakow, Mikołaja Kopernika Street 7C, Poland
| | - Bartosz Gąsiorkiewicz
- Chair of Medical Biochemistry, Jagiellonian University Medical College, 31-034 Krakow, Mikołaja Kopernika Street 7C, Poland
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CDK7/GRP78 signaling axis contributes to tumor growth and metastasis in osteosarcoma. Oncogene 2022; 41:4524-4536. [PMID: 36042349 DOI: 10.1038/s41388-022-02446-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 11/08/2022]
Abstract
Osteosarcoma derives from primitive bone-forming mesenchymal cells and is the most common primary bone malignancy. Therapeutic targeting of osteosarcoma has been unsuccessful; therefore, identifying novel osteosarcoma pathogenesis could offer new therapeutic options. CDK7 is a subunit within the general transcription factor TFIIH. We aim to explore the new mechanism by which CDK7 regulates osteosarcoma and our studies may provide new theoretical support for the use of CDK7 inhibitors in the treatment of osteosarcoma. Here, we investigate the molecular mechanism underlying the association between CDK7 and GRP78 in osteosarcoma. Specifically, we find that an E3 ubiquitin ligase TRIM21 binds and targets GRP78 for ubiquitination and degradation, whereas CDK7 phosphorylates GRP78 at T69 to inhibit TRIM21 recruitment, leading to GRP78 stabilization. Notably, a CDK7-specific inhibitor, THZ1, blunts osteosarcoma growth and metastasis. Combination treatment with CDK7 and GRP78 inhibitors yield additive effects on osteosarcoma growth and progression inhibition. Thus, simultaneous suppression of CDK7 and GRP78 activity represents a potential new approach for the treatment of osteosarcoma. In conclusion, the discovery of this previously unknown CDK7/GRP78 signaling axis provides the molecular basis and the rationale to target human osteosarcoma.
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Dai D, Li Q, Zhou P, Huang J, Zhuang H, Wu H, Chen B. Analysis of Omics Data Reveals Nucleotide Excision Repair-Related Genes Signature in Highly-Grade Serous Ovarian Cancer to Predict Prognosis. Front Cell Dev Biol 2022; 10:874588. [PMID: 35769257 PMCID: PMC9235032 DOI: 10.3389/fcell.2022.874588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 05/02/2022] [Indexed: 12/31/2022] Open
Abstract
Most of the high-grade serous ovarian cancers (HGSOC) are accompanied by P53 mutations, which are related to the nucleotide excision repair (NER) pathway. This study aims to construct a risk signature based on NER-related genes that could effectively predict the prognosis for advanced patients with HGSOC. In our study, we found that two clusters of HGSOC with significantly different overall survival (OS) were identified by consensus clustering and principal component analysis (PCA). Then, a 7-gene risk signature (DDB2, POLR2D, CCNH, XPC, ERCC2, ERCC4, and RPA2) for OS prediction was developed subsequently based on TCGA cohort, and the risk score-based signature was identified as an independent prognostic indicator for HGSOC. According to the risk score, HGSOC patients were divided into high-risk group and low-risk group, in which the distinct OS and the predictive power were also successfully verified in the GEO validation sets. Then we constructed a nomogram, including the risk signature and clinical-related risk factors (age and treatment response) that predicted an individual’s risk of OS, which can be validated by assessing calibration curves. Furthermore, GSEA showed that the genes in the high-risk group were significantly enriched in cancer-related pathways, such as “MAPK signaling pathway”, “mTOR signaling pathway”, “VEGF signaling pathway” and so on. In conclusion, our study has developed a robust NER-related genes-based molecular signature for prognosis prediction, and the nomogram could be used as a convenient tool for OS evaluation and guidance of therapeutic strategies in advanced patients with HGSOC.
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Affiliation(s)
- Danian Dai
- Department of Vascular and Plastic Surgery, Guangdong Provincial People’s Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qiang Li
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Pengfei Zhou
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Jianjiang Huang
- Department of Pathology, Guangdong Provincial People’s Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hongkai Zhuang
- Department of General Surgery, Guangdong Provincial People’s Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Hongkai Zhuang, ; Hongmei Wu, ; Bo Chen,
| | - Hongmei Wu
- Department of Pathology, Guangdong Provincial People’s Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Hongkai Zhuang, ; Hongmei Wu, ; Bo Chen,
| | - Bo Chen
- Department of Breast Cancer, Guangdong Provincial People’s Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Hongkai Zhuang, ; Hongmei Wu, ; Bo Chen,
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Ju Q, Jiang M, Huang W, Yang Q, Luo Z, Shi H. CtBP2 interacts with TGIF to promote the progression of esophageal squamous cell cancer through the Wnt/β‑catenin pathway. Oncol Rep 2021; 47:29. [PMID: 34878149 PMCID: PMC8674710 DOI: 10.3892/or.2021.8240] [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: 07/08/2021] [Accepted: 10/13/2021] [Indexed: 11/18/2022] Open
Abstract
C-terminal-binding protein 2 (CtBP2), a transcriptional co-repressor, plays a main role in tumorigenesis and in the development of multiple tumors. Transforming growth interacting factor (TGIF) is involved in a number of cellular signal transduction pathways and is related to tumor occurrence and development. In the present study, the proteins interacting with CtBP2 were identified and the mechanisms underlying the biological activity of CtBP2 in esophageal squamous cell carcinoma (ESCC) were investigated. The Search Tool for the Retrieval of Interacting Genes (STRING) database was used to search for known proteins interacting with CtBP2, and co-immunoprecipitation (Co-IP) assay was performed to validate the interactions. Reverse transcription-quantitative PCR (RT-qPCR), immunohistochemistry (IHC) and western blot analysis were performed to examine the expression levels of CtBP2 and TGIF in ESCC. The correlation between CtBP2 and TGIF was analyzed using Gene Expression Profiling Interactive Analysis (GEPIA) by Pearson's correlation analysis, and the co-localization of CtBP2 with TGIF in the ECA109 cells was identified using immunofluorescence staining. XAV939 treatment, CCK-8, 5-ethynyl-2′-deoxyuridine (EdU) staining, wound healing and Transwell assays were performed to investigate the signaling pathways involved in the biological activity of CtBP2 in ECA109 cells. According to the results obtained from STRING and Co-IP analysis, an interaction between CtBP2 and TGIF was indicated, and these proteins were co-localized in the nucleus. CtBP2 and TGIF mRNA and protein expression levels were robustly and simultaneously increased in both ESCC tissues and cell lines. There was a direct correlation between CtBP2 and TGIF expression levels in ESCC tissues, and both were significantly associated with metastasis and survival. The TGIF and CtBP2 expression levels were significantly increased or decreased simultaneously, in ECA109 cells transfected with LV-CtBP2 or sh-CtBP2, and vice versa. According to the results of CCK-8 assay, EdU staining and Transwell assay, CtBP2 promoted the proliferation, migration and invasion of ECA109 cells through the Wnt/β-catenin pathway. On the whole, the present study demonstrates that CtBP2 interacts with TGIF and promotes the malignant progression of ESCC through the Wnt/β-catenin pathway.
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Affiliation(s)
- Qianqian Ju
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Maorong Jiang
- Key Laboratory for Neuroregeneration, Medical College of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Wenxin Huang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Qingbo Yang
- Department of Thoracic Surgery, Shanghai Tenth People's Hospital, Shanghai 200072, P.R. China
| | - Zhenghong Luo
- Department of Thoracic Surgery, Shanghai Tenth People's Hospital, Shanghai 200072, P.R. China
| | - Hui Shi
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
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Cyclin H Regulates Lung Cancer Progression as a Carcinoma Inducer. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:6646077. [PMID: 33777168 PMCID: PMC7969110 DOI: 10.1155/2021/6646077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/15/2021] [Accepted: 02/27/2021] [Indexed: 12/27/2022]
Abstract
Introduction Studies have previously shown that Cyclin H (CCNH) is involved in the tumorigenesis and development of many cancers. The increasing research in CCNH is associated with the poor prognosis of most human cancers. Early diagnosis and clinical treatment are still the main challenges for lung cancer treatment. However, the exact role of CCNH in the tumorigenesis of lung cancer remains unclear. Methods The Tumor Genome Atlas (TCGA) database and the Clinical Proteomics Tumor Analysis Association (CPTAC) database were analyzed to detect key genes that might play an important role in lung cancer. The biological functions of CCNH were further revealed through bioinformatics experiments. The Kaplan-Meier method was applied to explore the relationship between CCNH expression and prognosis. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to detect the expression levels of CCNH in 6 lung cancer tissues and 3 cancer cell lines. The effect of CCNH expression on lung cancer progression was studied by in vitro functional experiments. Results Database analysis screened out candidate oncogenes, and CCNH was of great significance to the tumorigenesis of lung cancer. The higher the expression of CCNH was, the lower the survival rate of lung cancer patients were. The qRT-PCR data illustrated that the CCNH expression level was largely increased in lung cancer tissues and cells. The reduction of CCNH inhibited cell proliferation, invasion, and migration. Conclusion CCNH was related to poor prognosis, suggesting that CCNH regulated the tumorigenesis and development of lung cancer. Our study suggested that CCNH was a promising biomarker and target in the treatment of lung cancer.
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Liu W, Shi X, Wang B. microRNA-133a exerts tumor suppressive role in oral squamous cell carcinoma through the Notch signaling pathway via downregulation of CTBP2. Cancer Gene Ther 2021; 29:62-72. [PMID: 33531645 DOI: 10.1038/s41417-020-00289-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 12/07/2020] [Accepted: 12/11/2020] [Indexed: 12/14/2022]
Abstract
microRNAs (miRNAs) have been revealed to participate in some oral cancers and are proved to be effective. In the present study, we tried to explore the biological function of miR-133a in oral squamous cell carcinoma (OSCC) cells. The relationship that C-terminal-binding proteins 2 (CTBP2) was the putative target gene of miR-133a revealed from bioinformatics analysis was further was further validated by dual-luciferase reporter gene assay. In total, 40 patients with OSCC were enrolled for characterization of miR-133a, CTBP2, and Notch signaling pathway-related gene expression in clinical OSCC tissues. Low expression of miR-133a and high expression of CTBP2, Hes1, Notch-1, and Notch-3 were determined in OSCC tissues. OSCC cell lines were transfected with miR-133a inhibitor, miR-133a mimic, or shRNA targeting CTBP2, in response to which cell proliferation, migration, invasion, cell cycle, and apoptosis were evaluated. Transfection of miR-133a mimic induced apoptosis and inhibited OSCC cell proliferation, migration, and invasion and this was demonstrated to be attributable to decreased CTBP2 expression and suppression of the Notch signaling pathway. Taken together, we concluded that miR-133a acted as a tumor suppressor in OSCC through inhibition of the Notch signaling pathway via binding to CTBP2.
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Affiliation(s)
- Wei Liu
- Department of Stomatology, Linyi People's Hospital, 276000, Linyi, P. R. China
| | - Xiaoming Shi
- Department of Stomatology, Linyi People's Hospital, 276000, Linyi, P. R. China
| | - Baoliang Wang
- Department of Stomatology, Linyi People's Hospital, 276000, Linyi, P. R. China.
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Ji W, Choi YJ, Kang MH, Sung KJ, Kim DH, Jung S, Choi CM, Lee JC, Rho JK. Efficacy of the CDK7 Inhibitor on EMT-Associated Resistance to 3rd Generation EGFR-TKIs in Non-Small Cell Lung Cancer Cell Lines. Cells 2020; 9:cells9122596. [PMID: 33287368 PMCID: PMC7761809 DOI: 10.3390/cells9122596] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 12/22/2022] Open
Abstract
Epithelial to mesenchymal transition (EMT) is associated with resistance during EGFR tyrosine kinase inhibitor (EGFR-TKI) therapy. Here, we investigated whether EMT is associated with acquired resistance to 3rd generation EGFR-TKIs, and we explored the effects of cyclin-dependent kinase 7 (CDK7) inhibitors on EMT-mediated EGFR-TKIs resistance in non-small cell lung cancer (NSCLC). We established 3rd generation EGFR-TKI resistant cell lines (H1975/WR and H1975/OR) via repeated exposure to WZ4002 and osimertinib. The two resistant cell lines showed phenotypic changes to a spindle-cell shape, had a reduction of epithelial marker proteins, an induction of vimentin expression, and enhanced cellular mobility. The EMT-related resistant cells had higher sensitivity to THZ1 than the parental cells, although THZ1 treatment did not inhibit EGFR activity. This phenomenon was also observed in TGF-β1 induced EMT cell lines. THZ1 treatment induced G2/M cell cycle arrest and apoptosis in all of the cell lines. In addition, THZ1 treatment led to drug-tolerant, EMT-related resistant cells, and these THZ1-tolerant cells partially recovered their sensitivity to 3rd generation EGFR-TKIs. Taken together, EMT was associated with acquired resistance to 3rd generation EGFR-TKIs, and CDK7 inhibitors could potentially be used as a therapeutic strategy to overcome EMT associated EGFR-TKI resistance in NSCLC.
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Affiliation(s)
- Wonjun Ji
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (W.J.); (C.-M.C.)
| | - Yun Jung Choi
- Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (Y.J.C.); (M.-H.K.); (K.J.S.); (D.H.K.)
| | - Myoung-Hee Kang
- Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (Y.J.C.); (M.-H.K.); (K.J.S.); (D.H.K.)
| | - Ki Jung Sung
- Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (Y.J.C.); (M.-H.K.); (K.J.S.); (D.H.K.)
| | - Dong Ha Kim
- Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (Y.J.C.); (M.-H.K.); (K.J.S.); (D.H.K.)
| | - Sangyong Jung
- Department of Biomedical Sciences, Asan Medical Center, AMIST, College of Medicine, University of Ulsan, Seoul 05505, Korea;
| | - Chang-Min Choi
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (W.J.); (C.-M.C.)
- Department of Oncology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea
| | - Jae Cheol Lee
- Department of Oncology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Correspondence: (J.C.L.); (J.K.R.); Tel.: +82-2-3010-3208 (J.C.L.); +82-2-3010-2974 (J.K.R.); Fax: +82-2-3010-6961 (J.C.L. & J.K.R.)
| | - Jin Kyung Rho
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea; (W.J.); (C.-M.C.)
- Department of Convergence Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Correspondence: (J.C.L.); (J.K.R.); Tel.: +82-2-3010-3208 (J.C.L.); +82-2-3010-2974 (J.K.R.); Fax: +82-2-3010-6961 (J.C.L. & J.K.R.)
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Chen M, Wang H, Liang Y, Hu M, Li L. Establishment of multifactor predictive models for the occurrence and progression of cervical intraepithelial neoplasia. BMC Cancer 2020; 20:926. [PMID: 32993576 PMCID: PMC7523359 DOI: 10.1186/s12885-020-07265-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/05/2020] [Indexed: 01/05/2023] Open
Abstract
Background To study the risk factors involved in the occurrence and progression of cervical intraepithelial neoplasia (CIN) and to establish predictive models. Methods Genemania was used to build a gene network. Then, the core gene-related pathways associated with the occurrence and progression of CIN were screened in the Kyoto Encyclopedia of Genes and Genomes (KEGG) database. Real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) experiments were performed to verify the differential expression of the identified genes in different tissues. R language was used for predictive model establishment. Results A total of 10 genes were investigated in this study. A total of 30 cases of cervical squamous cell cancer (SCC), 52 cases of CIN and 38 cases of normal cervix were enrolled. Compared to CIN cases, the age of patients in the SCC group was older, the number of parities was greater, and the percentage of patients diagnosed with CINII+ by TCT was higher. The expression of TGFBR2, CSKN1A1, PRKCI and CTBP2 was significantly higher in the SCC groups. Compared to patients with normal cervix tissue, the percentage of patients who were HPV positive and were diagnosed with CINII+ by TCT was significantly higher. FOXO1 expression was significantly higher in CIN tissue, but TGFBR2 and CTBP2 expression was significantly lower in CIN tissue. The significantly different genes and clinical factors were included in the models. Conclusions Combination of clinical and significant genes to establish the random forest models can provide references to predict the occurrence and progression of CIN.
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Affiliation(s)
- Mengjie Chen
- Guangxi Medical University affiliated Cancer Hospital, NO.71 Hedi Road Qingxiu Square, Nanning City, Guangxi Province, China
| | - He Wang
- Guangxi Medical University affiliated Cancer Hospital, NO.71 Hedi Road Qingxiu Square, Nanning City, Guangxi Province, China
| | - Yuejuan Liang
- Guangxi Medical University affiliated Cancer Hospital, NO.71 Hedi Road Qingxiu Square, Nanning City, Guangxi Province, China
| | - Mingmiao Hu
- Guangxi Medical University affiliated Cancer Hospital, NO.71 Hedi Road Qingxiu Square, Nanning City, Guangxi Province, China
| | - Li Li
- Guangxi Medical University affiliated Cancer Hospital, NO.71 Hedi Road Qingxiu Square, Nanning City, Guangxi Province, China.
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Diab S, Yu M, Wang S. CDK7 Inhibitors in Cancer Therapy: The Sweet Smell of Success? J Med Chem 2020; 63:7458-7474. [DOI: 10.1021/acs.jmedchem.9b01985] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sarah Diab
- School of Pharmacy, Lebanese American University, P.O. Box 36, Byblos, Lebanon
| | - Mingfeng Yu
- Drug Discovery and Development, University of South Australia Cancer Research Institute, Adelaide, SA 5000, Australia
| | - Shudong Wang
- Drug Discovery and Development, University of South Australia Cancer Research Institute, Adelaide, SA 5000, Australia
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Wang X, Chang H, Gao G, Su B, Deng Q, Zhou H, Wang Q, Lin Y, Ding Y. Silencing of PRDM5 increases cell proliferation and inhibits cell apoptosis in glioma. Int J Neurosci 2020; 131:144-153. [PMID: 32083978 DOI: 10.1080/00207454.2020.1733563] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AIM PR-domain-containing 5 (PRDM5), a family member of PR-domain-containing zinc finger genes, has been reported to participate in modulate cellular processes, including cell growth, differentiation and apoptosis. It has also been found to function as a putative tumor suppressor in different types of cancer. The present study is the first, to the best of our knowledge, to report on the clinical significance of the expression of PRDM5 in glioma cell line. MATERIALS AND METHODS Western blot analyse the expression of PRDM5 in glioma tissues and cells. 80 tissues microarray samples from patients with glioma were examined using immunohistochemical analysis. Glioblastoma U251 cells were transfected with PRDM5-siRNA and control-siRNA. U251cell proliferation was measured by flow cytometric analysis and plate colony formation assay. Cell apoptosis were detected using flow cytometric analysis. RESULTS The results of western blot analysis and immunohistochemistry showed that the expression of PRDM5 was decreased in fresh glioma tissues, compared with that in normal brain tissues. Kaplan-Meier postoperative survival curves demonstrated that the low expression of PRDM5 was associated with poor prognosis in patients with glioma. In addition, suppression of PRDM5 promoted cell proliferation via regulating cell cycle progression. Finally, knocking down PRDM5 using small interfering RNA decreased the apoptosis of glioma cells. CONCLUSION Taken together, these findings suggested that PRDM5 may be a novel therapeutic target of glioma.
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Affiliation(s)
- Xiaolin Wang
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu, China
| | - Hao Chang
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu, China
| | - Guangzhong Gao
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu, China
| | - Bing Su
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu, China
| | - Qingmei Deng
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu, China
| | - Huilin Zhou
- Department of Pathology, Taizhou People's Hospital, Taizhou, Jiangsu, China
| | - Qing Wang
- Department of Neurosurgery, Wuxi Second Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Yuchang Lin
- Department of Neurosurgery, Wuxi Second Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Yasuo Ding
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu, China
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13
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Transcriptional co-repressor CtBP2 orchestrates epithelial-mesenchymal transition through a novel transcriptional holocomplex with OCT1. Biochem Biophys Res Commun 2019; 523:354-360. [PMID: 31866012 DOI: 10.1016/j.bbrc.2019.12.070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 12/15/2019] [Indexed: 12/31/2022]
Abstract
The epithelial to mesenchymal transition (EMT) is a cell intrinsic program controlling cellular morphological and phenotypic remodeling in a wide range of biological processes. Despite the accumulating evidence, the transcriptional networks regulating EMT still remain to be elucidated. In this study, we demonstrate that C-terminal binding protein 2 (CtBP2), a critical transcriptional co-repressor harboring pyridine nucleotide sensing capability, orchestrates the EMT program at least in part through a novel transcriptional interaction with an octamer transcription factor, OCT1 (POU2F1, POU class 2 homeobox 1). We identified novel interactions of CtBP2 with several octamer transcription factors, and CtBP2 exhibits a direct interaction with OCT1 in particular. OCT1 accelerates the EMT program as reported, which is diminished by the mutation of the CtBP-binding motif in OCT1, suggesting OCT1 represses epithelial gene expression through recruiting the co-repressor CtBP2. In accordance with these findings, a canonical EMT activator transforming growth factor-β (TGF-β) promotes the formation of the CtBP2/OCT1 complex. Our observations illustrate the role of CtBP2 to orchestrate the EMT program through the interaction with OCT1 and highlight the potential of therapeutic exploitation of this new transcriptional system for a wide range of diseases.
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14
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Chen L, Wang Y, Jiang W, Ni R, Wang Y, Ni S. CDK14 involvement in proliferation migration and invasion of esophageal cancer. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:681. [PMID: 31930082 DOI: 10.21037/atm.2019.11.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background CDK14 has significant involvement in tumorigenesis of cancers including hepatocellular carcinoma, gastric carcinoma and breast cancer. In esophageal cancer, CDK14 is useful as a prognostic marker and as a predictor of response to chemotherapy. However, the exact mechanism of CDK14 n chemotherapy for esophageal squamous cell carcinoma (ESCC) has not been explored. Methods Western blots and immunohistochemistry (IHC) analysis were performed to analyse the expression of CDK14 in ESCC. Co-immunoprecipitation and immunofluorescence assays were used to explore the mechanism of CDK14 involvement in ESCC. Colony formation assays and proliferation assays were used to investigate the function of CDK14 in ESCC. At last, we constructed two truncated mutants of CDK14 by the PCR technology to research the functional structural domain. Results Western blots and IHC analysis showed that CDK14 expression was higher n tumor tissues and cell lines than that in normal tissues. IHC staining revealed that CDK14 positively correlated with clinical pathological variables of tumor size (P=0.001), tumor grade (P=0.004), Ki-67 (P=0.012) and survival (P=0.000). Immunoprecipitation and immunofluorescence assays revealed that CDK-activating kinase (CAK), namely CDK7/CCNH complex physically interacted and was collocated with CDK14 in the cell nucleus. This direct interaction increased CDK14 phosphorylation and inhibited Rb function through phosphorylation. In vitro starvation and refeeding assays demonstrated that CDK14 expression was related to proliferation of ESCC cells. Overexpression of CDK14 in Eca109 cells increased colony formation and reduced sensitivity to cisplatin. Overexpressing CDK7 with CDK14 strengthened these effects, demonstrating that CDK7 was a major component in CDK14 activation. Conclusions Expression of CDK14 worsened the effects of cisplatin chemotherapy by promoting ESCC proliferation.
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Affiliation(s)
- Lingling Chen
- Department of Gastroenterology, Huashan Hospital North, Fudan University, Shanghai 201907, China
| | - Yayun Wang
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Wenyan Jiang
- Department of Respiratory, Nantong First People Hospital, Nantong 226001, China
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yuchan Wang
- Department of Pathogenic Biology, Medical College, Nantong University, Nantong 226001, China
| | - Sujie Ni
- Department of Medical Oncology, Affiliated Hospital of Nantong University, Nantong 226001, China
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15
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Zhou Y, Lu L, Jiang G, Chen Z, Li J, An P, Chen L, Du J, Wang H. Targeting CDK7 increases the stability of Snail to promote the dissemination of colorectal cancer. Cell Death Differ 2018; 26:1442-1452. [PMID: 30451989 DOI: 10.1038/s41418-018-0222-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/09/2018] [Accepted: 10/08/2018] [Indexed: 12/20/2022] Open
Abstract
Targeted inhibition of cyclin-dependent kinase 7 (CDK7) via its covalent inhibitor THZ1 can suppress the growth of various cancers, while its roles on colorectal cancer (CRC) remain obscure. Here we report that the expression of CDK7 is upregulated in CRC cells and tissues. THZ1 exhibits high potency and selectivity against CRC cells both in vitro and in vivo via induction of cell apoptosis rather than cell cycle disruption. Intriguingly, THZ1 treatment increases the ability of epithelial mesenchymal transition (EMT) and in vivo metastasis to liver of CRC cells. Mechanistical studies reveal that THZ1 increases the expression of Snail, while not other EMT-transcription factors, via enhancing its protein stability rather than mRNA expression or translation. By screening Snail stability related factors via qRT-PCR, results indicate THZ1 and si-CDK7 decrease the expression of protein kinase D1 (PKD1) in CRC cells. Down regulation of PKD1 mediates THZ1 up regulated Snail via dephosphorylation of Snail Ser 11 and prevention of proteasome mediated degradation. Clinical analysis confirms that CDK7 is significantly (p < 0.05) negatively correlated with the expression of mesenchymal markers including FN1, VIM, and MMP2. CRC patients whose tumors expressing less CDK7/SNAI1 or PKD1/SNAI1 showed significant (p < 0.05) poorer overall survival (OS) rate as compared with those with greater levels. Collectively, our data suggest that targeted inhibition of CDK7 can trigger the metastasis of CRC during cancer development via PKD1/Snail axis, which imposes great challenge that inhibition of CDK7 is a potential approach for cancer treatment.
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Affiliation(s)
- Yan Zhou
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Linlin Lu
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Guanmin Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China.,Central Laboratory, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Zhuojia Chen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Jiexin Li
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Panpan An
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Likun Chen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Jun Du
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Hongsheng Wang
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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16
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Wan C, Wu M, Zhang S, Chen Y, Lu C. α7nAChR-mediated recruitment of PP1γ promotes TRAF6/NF-κB cascade to facilitate the progression of Hepatocellular Carcinoma. Mol Carcinog 2018; 57:1626-1639. [PMID: 30074282 DOI: 10.1002/mc.22885] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 07/23/2018] [Accepted: 07/30/2018] [Indexed: 12/13/2022]
Abstract
The cholinergic signaling pathways have been recently implicated in the development of various human cancers. However, the underlying molecular mechanism remains largely unclear. In the present study, we reported that α7 nicotinic acetylcholine receptor (α7nAChR), an important member of nicotinic acetylcholine receptors, interacts with Protein Phosphatase-1γ (PP1γ) in human Hepatocellular Carcinoma (HCC) tissues. In addition, we found that α7nAChR facilitates the ubiquitination and activation of TRAF6 in a PP1γ-dependent manner in HCC cells. Furthermore, we showed that ligand-bounded α7nAChR induces the degradation of IκBα, leading to resultant phosphorylation and nuclear accumulation of NF-κB p65. Accordingly, acetylcholine triggers the expression of critical NF-κB target genes, such as Cyclin D1 and PCNA, as well as the proliferation of HCC cells in a PP1γ- and α7nAChR-dependent manner. Furthermore, we revealed that nicotine-triggered α7nAChR activation promotes oncosphere formation and in vivo tumor growth of HCC cells. Moreover, we showed that the protein levels of both α7nAChR and PP1γ are significantly upregulated in human HCC specimens compared with adjacent non-cancerous ones, and that upregulated expression of the two proteins predict significantly worsened prognosis in HCC patients. These findings together indicate that the cholinergic receptor α7nAChR exerts a facilitating role in HCC development through PP1γ-dependent TRAF6/NF-κB signaling.
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Affiliation(s)
- Chunhua Wan
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, China
| | - Miaomiao Wu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Shusen Zhang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Respiratory Medicine, Affiliated Xing Tai People Hospital of Hebei Medical University, Xingtai, Hebei, China
| | - Yuyan Chen
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, China
| | - Cuihua Lu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
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17
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Heat shock protein 70 protects cardiomyocytes through suppressing SUMOylation and nucleus translocation of phosphorylated eukaryotic elongation factor 2 during myocardial ischemia and reperfusion. Apoptosis 2018; 22:608-625. [PMID: 28205128 DOI: 10.1007/s10495-017-1355-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Myocardial ischemia and reperfusion (MIR) results in cardiomyocyte apoptosis with severe outcomes, which blocks cardiac tissue recovering from myocardial ischemia diseases. Heat shock protein 70 (HSP70) is one of protective molecule chaperones which could regulate the nucleus translocation of other proteins. In addition, eukaryotic elongation factor 2 (eEF2), which modulates protein translation process, is vital to the recovery of heart during MIR. However, the relationship between HSP70 and eEF2 and its effects on MIR are unclear. The expression and relationship between HSP70 and eEF2 is confirmed by western blot, immunoprecipitation in vitro using cardiomyocyte cell line H9c2 and in vivo rat MIR model. The further investigation was conducted in H9c2 cells with detection for cell-cycle and apoptosis. It is revealed that eEF2 interacted and be regulated by HSP70, which kept eEF2 as dephosphorylated status and preserved the function of eEF2 during MIR. In addition, HSP70 suppressed the nucleus translocation of phosphorylated eEF2, which inhibited cardiomyocyte apoptosis during myocardial reperfusion stage. Furthermore, HSP70 also interacted with C-terminal fragment of eEF2, which could reverse the nucleus translocation and cardiomyocyte apoptosis caused by N-terminal fragment of eEF2. HSP70 draw on advantage and avoid defect of MIR through regulating phosphorylation and nucleus translocation of eEF2.
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18
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Saberi Anvar M, Minuchehr Z, Shahlaei M, Kheitan S. Gastric cancer biomarkers; A systems biology approach. Biochem Biophys Rep 2018; 13:141-146. [PMID: 29556568 PMCID: PMC5857180 DOI: 10.1016/j.bbrep.2018.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/12/2017] [Accepted: 01/03/2018] [Indexed: 12/22/2022] Open
Abstract
Gastric cancer is one of the most fatal cancers in the world. Many efforts in recent years have attempted to find effective proteins in gastric cancer. By using a comprehensive list of proteins involved in gastric cancer, scientists were able to retrieve interaction information. The study of protein-protein interaction networks through systems biology based analysis provides appropriate strategies to discover candidate proteins and key biological pathways. In this study, we investigated dominant functional themes and centrality parameters including betweenness as well as the degree of each topological clusters and expressionally active sub-networks in the resulted network. The results of functional analysis on gene sets showed that neurotrophin signaling pathway, cell cycle and nucleotide excision possess the strongest enrichment signals. According to the computed centrality parameters, HNF4A, TAF1 and TP53 manifested as the most significant nodes in the interaction network of the engaged proteins in gastric cancer. This study also demonstrates pathways and proteins that are applicable as diagnostic markers and therapeutic targets for future attempts to overcome gastric cancer. A systematic study of protein-protein interaction networks through comprehensive extracted list of proteins involved in gastric cancer. Dominant functional theme and pathways of each topological clusters and expressionally active subnetworks were reported. The most effective proteins in gastric cancer formation were proposed according to the computed centrality parameters. HNF4A, TAF1and TP53 were mentioned as the key proteins in gastric cancer.
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Affiliation(s)
- Mohammad Saberi Anvar
- Department of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Zarrin Minuchehr
- Department of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Mohsen Shahlaei
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Samira Kheitan
- Department of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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19
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Chen Y, Wang S, He Z, Sun F, Huang Y, Ni Q, Wang H, Wang Y, Cheng C. Dyrk1B overexpression is associated with breast cancer growth and a poor prognosis. Hum Pathol 2017; 66:48-58. [PMID: 28554575 DOI: 10.1016/j.humpath.2017.02.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/29/2017] [Accepted: 02/23/2017] [Indexed: 01/12/2023]
Abstract
Dyrk1B, also called minibrain-related kinase (Mirk), is a member of the dual-specificity tyrosine phosphorylation-regulated kinase (Dyrk)/minibrain family of dual-specificity protein kinases. It is a serine/threonine kinase involved in the regulation of tumor progression and cell proliferation. In this study, the role of Dyrk1B in breast cancer development was investigated. The expression of Dyrk1B was detected by Western blot and immunohistochemistry staining, both of which demonstrated that Dyrk1B was overexpressed in breast cancer tissues and cells. Statistical analysis showed that the extent of Dyrk1B expression was associated with multiple clinicopathologic factors, including tumor size, grade, estrogen receptor status, and Ki-67 expression, and that high expression predicted a poor prognosis. The growth of breast cancer cells was inhibited significantly after knockout of DYRK1B by small interfering RNA (siRNA). Moreover, FoxO1 could be phosphorylated by Dyrk1B, and then FoxO1 was shuttled from the cell nucleus into the cytoplasm, which might be the mechanism of Dyrk1B-mediated survival in breast cancer cells. The results suggest that Dyrk1B plays a key role in the progression of breast cancer and provides a new target for breast cancer therapy.
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Affiliation(s)
- Yingying Chen
- Department of Immunology, Medical College, Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China; Department of Oncology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Shuo Wang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Zhixian He
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Fulan Sun
- Department of General Surgery, The Second People's Hospital of Nantong, Nantong 226001, China
| | - Yeqing Huang
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Qichao Ni
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Hua Wang
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Yingying Wang
- Department of Immunology, Medical College, Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China.
| | - Chun Cheng
- Department of Immunology, Medical College, Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China.
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20
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Ma H, Du X, Zhang S, Wang Q, Yin Y, Qiu X, Da P, Yue H, Wu H, Xu F. Achaete-scute complex homologue-1 promotes development of laryngocarcinoma via facilitating the epithelial-mesenchymal transformation. Tumour Biol 2017; 39:1010428317705752. [PMID: 28618959 DOI: 10.1177/1010428317705752] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Laryngeal cancer is one of the most common fatal cancers among head and neck carcinomas, whose mechanism, however, remains unclear. The proneural basic-helix-loop-helix protein achaete-scute complex homologue-1, a member of the basic helix-loop-helix family, plays a very important role in many cancers. This study aims to explore the clinical value and mechanism of achaete-scute complex homologue-1 in laryngeal cancer. Methods including Cell Counting Kit-8, flow cytometry, Transwell invasion assays, and scratch assay were adopted to further explore the bio-function of achaete-scute complex homologue-1, whose expression was examined in fresh and paraffin chip of laryngeal carcinoma tissues by means of western blot and immunohistochemistry, after the interference of achaete-scute complex homologue-1; achaete-scute complex homologue-1, an overexpression in laryngeal carcinoma whose carcinogenicity potential was confirmed via western blot, was correlative with T classification (p = 0.002), histological differentiation (p = 0.000), lymph node metastasis (p = 0.000), and poor survival (p = 0.000). Multivariate analysis shows that achaete-scute complex homologue-1 overexpression is an independent prognostic factor unfavorable to laryngeal carcinoma patients (p = 0.000). Moreover, knocking down achaete-scute complex homologue-1 expression could significantly suppress the proliferation, migration, and invasion of laryngeal carcinoma cell in vitro and disorder epithelial-mesenchymal transformation-associated protein expression. Achaete-scute complex homologue-1 plays an important role in the genesis and progression of laryngeal carcinoma and may act as a potential biomarker for therapeutic target and prognostic prediction.
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Affiliation(s)
- Huaci Ma
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaodong Du
- 2 Department of Otolaryngology/Head and Neck Surgery, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Shu Zhang
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Qiang Wang
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yong Yin
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoxia Qiu
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Peng Da
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Huijun Yue
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Hao Wu
- 1 Department of Otorhinolaryngology, Affiliated Hospital of Nantong University, Nantong, China
| | - Fenglei Xu
- 3 Department of Otolaryngology/Head and Neck Surgery, The Second Hospital of Shandong University, Jinan, China
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21
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Wang S, Chen YY, Li YP, Gu J, Gu SD, Shi H, Li XS, Lu XN, Li X, Zhang SL, Yu KJ, Liu K, Ji LL. DISC1 overexpression promotes non-small cell lung cancer cell proliferation. Oncotarget 2017; 8:65199-65210. [PMID: 29029423 PMCID: PMC5630323 DOI: 10.18632/oncotarget.18055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 04/27/2017] [Indexed: 12/29/2022] Open
Abstract
Neuropsychiatric disorder-associated disrupted-in-schizophrenia-1 (DISC1) activates Wnt/β-catenin signaling by inhibiting glycogen synthase kinase 3 beta (GSK3β) phosphorylation, and may promote neural progenitor cell and pancreatic β-cell proliferation. The present study found that DISC1 promotes non-small cell lung cancer (NSCLC) cell growth. Western blotting and immunohistochemistry analyses showed that DISC1 was highly expressed in NSCLC cell lines and patient tissues. DISC1 expression was negatively associated with phosphorylated (p-) GSK3β, but positively correlated with a more invasive tumor phenotype and predicted poor NSCLC patient prognosis. siRNA-mediated DISC1 silencing increased p-GSK3β expression and decreased expression of β-catenin and Cyclin D1, while DISC1 upregulation produced the opposite results. DISC1 knockdown also reduced NSCLC cell proliferation rates in vitro. These results suggest that DISC1 promotes NSCLC growth, likely through GSK3β/β-catenin signaling, and that DISC1 may function as an oncogene and novel anti-NSCLC therapeutic target.
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Affiliation(s)
- Shuo Wang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China.,Department of Pathology, Medical School of Nantong University, Nantong, China
| | - Ying-Ying Chen
- Department of Immunology, Medical School of Nantong University, Nantong, China.,Department of Oncology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yu-Peng Li
- Department of Pediatrics, The People's Hospital of Rizhao, Rizhao, China
| | - Jun Gu
- Department of Respiratory, Affiliated Hospital of Nantong University, Nantong, China
| | - Shu-Dong Gu
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, China
| | - Hai Shi
- Department of Cardiothoracic Surgery, The Third People's Hospital of Nantong, Nantong, China
| | - Xue-Song Li
- Department of Immunology, Medical School of Nantong University, Nantong, China
| | - Xiao-Ning Lu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China.,Department of Pathology, Medical School of Nantong University, Nantong, China
| | - Xiang Li
- Department of Otorhinolaryngology, Maternal and Child Health Care Hospital of Nantong, Nantong, China
| | - Shuang-Long Zhang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Kang-Jun Yu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Kun Liu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Li-Li Ji
- Department of Pathology, Medical School of Nantong University, Nantong, China
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22
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Li J, Xu L, Bao Z, Xu P, Chang H, Wu J, Bei Y, Xia L, Wu P, Cui G. High expression of PIWIL2 promotes tumor cell proliferation, migration and predicts a poor prognosis in glioma. Oncol Rep 2017; 38:183-192. [PMID: 28534979 DOI: 10.3892/or.2017.5647] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 12/05/2016] [Indexed: 11/05/2022] Open
Abstract
Piwi-like RNA-mediated gene silencing 2 (PIWIL2), has been reported as an oncogene tightly associated with the genesis and progression of various malignancies. Nevertheless, the function of the PIWIL2 protein in human gliomas has not yet been clarified. In this study, we sought to investigate the clinical significance of PIWIL2 expression and reveal its function in the pathological process of gliomas. Through western blot and immunohistochemical analyses we found that PIWIL2 was overexpressed in glioma tissues. Moreover, the expression level of PIWIL2 was also significantly correlated with the WHO grades of human gliomas and Ki-67 expression. Kaplan‑Meier curves indicated that PIWIL2 was a prognostic factor for the survival of glioma patients and a high expression of PIWIL2 was correlated with a poor prognosis. In vitro, knockdown of PIWIL2 in glioma cells was shown to induce cell cycle arrest and increase apoptosis. Furthermore, silencing of PIWIL2 expression also obviously suppressed the migration of glioma cells. All the results demonstrated that PIWIL2 plays a significant role in the pathogenesis of human gliomas and may be used as a potential diagnostic marker and a therapeutic target of glioma in the future.
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Affiliation(s)
- Jinquan Li
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Li Xu
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Zhen Bao
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Peng Xu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hao Chang
- Department of Neurosurgery, Affiliated Wuxi Second Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002, P.R. China
| | - Jingjing Wu
- Department of Oncology, Nantong Rich Hospital, Nantong, Jiangsu 226001, P.R. China
| | - Yuanqi Bei
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Liuwan Xia
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Peizhang Wu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Targets, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Gang Cui
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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Zhang C, Liu X, Zhang C, Li J, Guo W, Yan D, Yang C, Zhao J, Wu X, Shi J. Phosphorylated eEF2 is SUMOylated and induces cardiomyocyte apoptosis during myocardial ischemia reperfusion. J Cardiol 2017; 69:689-698. [DOI: 10.1016/j.jjcc.2016.05.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/21/2016] [Accepted: 05/27/2016] [Indexed: 12/13/2022]
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24
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Xu L, Li J, Bao Z, Xu P, Chang H, Wu J, Bei Y, Xia L, Wu P, Yan K, Lu B, Cui G. Silencing of OTUB1 inhibits migration of human glioma cells in vitro. Neuropathology 2017; 37:217-226. [PMID: 28139865 DOI: 10.1111/neup.12366] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Li Xu
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Jinquan Li
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Zhen Bao
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Peng Xu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Hao Chang
- Department of Neurosurgery; Affiliated Wuxi Second Hospital of Nanjing Medical University; Wuxi Jiangsu Province China
| | - Jingjing Wu
- Department of Oncology; Nantong Rich Hospital; Nantong Jiangsu Province China
| | - Yuanqi Bei
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Liuwan Xia
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Peizhang Wu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target; Nantong Jiangsu Province China
| | - Ke Yan
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Bing Lu
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
| | - Gang Cui
- Department of Neurosurgery; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
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Gu G, Chen Y, Duan C, Zhou L, Chen C, Chen J, Cheng J, Shi N, Jin Y, Xi Q, Zhong J. Overexpression of ARF1 is associated with cell proliferation and migration through PI3K signal pathway in ovarian cancer. Oncol Rep 2017; 37:1511-1520. [DOI: 10.3892/or.2017.5388] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 12/15/2016] [Indexed: 11/06/2022] Open
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26
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Hu B, Hua L, Ni W, Wu M, Yan D, Chen Y, Lu C, Chen B, Wan C. Nucleostemin/GNL3 promotes nucleolar polyubiquitylation of p27 kip1 to drive hepatocellular carcinoma progression. Cancer Lett 2016; 388:220-229. [PMID: 27998760 DOI: 10.1016/j.canlet.2016.12.008] [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: 09/18/2016] [Revised: 11/09/2016] [Accepted: 12/09/2016] [Indexed: 01/31/2023]
Abstract
p27kip, as a cyclin dependent kinase inhibitor (CDKI), plays a pivotal role in the regulation of cell cycle progression and hepatocarcinogenesis. Herein, we revealed that p27 exhibited apparent nucleolar distribution and interacted with nucleolar protein nucleostemin (NS) in Hepatocellular carcinoma (HCC) cells. Furthermore, subcellular fractionation experiments demonstrated that nucleolar p27 had significantly higher level of polyubiquitylation, compared with nucleoplasmic fraction. Depletion of NS inhibited nucleolar polyubiquitylation of p27, indicating an involvement of NS in triggering p27 ubiquitylation and inactivation during HCC development. Moreover, we found that knockdown of NS promoted p27 to bind to CDK2-Cyclin E complex and inhibited the activity of CDK2, resulting in consequent cell cycle arrest in HCC cells. Furthermore, silencing NS expression reduced in vitro colony formation and in vivo tumor growth of HCC cells. Finally, we found that NS was upregulated in HCC tissues, compared with adjacent non-tumorous tissues. Kaplan-Meier analysis indicated patients with high expression of NS and low expression of p27 had significantly worsened prognosis. Our results suggested NS mediated p27-dependent cell cycle control via inducing nucleolar sequestration and polyubiquitylation of p27 in HCC. These findings help gain an insightful view into the mechanism underlying aberrant cell cycle progression during hepatocarcinogenesis, and thus benefit the development of molecular-targeted therapies in HCC.
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Affiliation(s)
- Baoying Hu
- Department of Radiotherapy, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, Jiangsu Province, China; Basic Medical Research Centre, Medical College, Nantong University, Nantong 226001, Jiangsu Province, China
| | - Lu Hua
- Department of Radiotherapy, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, Jiangsu Province, China
| | - Wenkai Ni
- Department of Gastroenterlogy, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Miaomiao Wu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, Jiangsu Province, China
| | - Daliang Yan
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, Jiangsu Province, China
| | - Yuyan Chen
- Class 2 Grade 13, Clinical Medicine, Medical College, Nantong University, Nantong 226001, Jiangsu Province, China
| | - Cuihua Lu
- Department of Gastroenterlogy, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Buyou Chen
- Department of Radiotherapy, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China.
| | - Chunhua Wan
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, Jiangsu Province, China.
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Upregulated expression of Nucleostemin/GNL3 is associated with poor prognosis and Sorafenib Resistance in Hepatocellular Carcinoma. Pathol Res Pract 2016; 213:688-697. [PMID: 28476378 DOI: 10.1016/j.prp.2016.11.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 11/06/2016] [Accepted: 11/11/2016] [Indexed: 12/13/2022]
Abstract
Nucleostemin (NS)/GNL3 protein has been recently documented to be a nucleolar protein that was abundantly expressed in stem cells and cancer cells. Herein, we showed that NS was upregulated in HCC tissues and the expression of NS was inversely correlated with that of p53. Overexpression of NS predicted significantly worsened prognosis in HCC patients, suggesting that NS might serve as a prognostic marker of HCC. In addition, we found that depletion of NS sensitized HCC cells to sorafenib-induced apoptosis. Moreover, we found that the mechanism underlying NS-mediated sorafenib resistance involved dysregulated expression of p53, and downstream Bax and Bcl-2 proteins. NS interacted with p53 in HCC cells. Depletion of NS increased the expression of p53 and Bax, whereas impaired the level of cellular Bcl-2. Interference of NS enhanced the cytotoxic effects of sorafenib in HCC cells. Furthermore, ectopic expression of NS impaired the apoptosis of HCC cells following sorafenib exposure. Therefore, NS may contribute to sorafenib resistance in HCC cells through the modulation of p53 pathway and Bcl-2 proteins. These findings indicated that the combination of silencing NS expression and sorafenib treatment is a promising therapeutic strategy in treatment of HCC.
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Zhu X, Ouyang Y, Zhong F, Wang Q, Ding L, Zhang P, Chen L, Liu H, He S. Silencing of CKIP-1 promotes tumor proliferation and cell adhesion-mediated drug resistance via regulating AKT activity in non-Hodgkins lymphoma. Oncol Rep 2016; 37:622-630. [DOI: 10.3892/or.2016.5233] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 10/27/2016] [Indexed: 11/06/2022] Open
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29
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Knockdown of DIXDC1 Inhibits the Proliferation and Migration of Human Glioma Cells. Cell Mol Neurobiol 2016; 37:1009-1019. [PMID: 27817168 DOI: 10.1007/s10571-016-0433-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 10/13/2016] [Indexed: 01/19/2023]
Abstract
DIX domain containing 1 (DIXDC1), the human homolog of coiled-coil-DIX1 (Ccd1), is a positive regulator of Wnt signaling pathway. Recently, it was found to act as a candidate oncogene in colon cancer, non-small-cell lung cancer, and gastric cancer. In this study, we aimed to investigate the clinical significance of DIXDC1 expression in human glioma and its biological function in glioma cells. Western blot and immunohistochemistry analysis showed that DIXDC1 was overexpressed in glioma tissues and glioma cell lines. The expression level of DIXDC1 was evidently linked to glioma pathological grade and Ki-67 expression. Kaplan-Meier curve showed that high expression of DIXDC1 may lead to poor outcome of glioma patients. Serum starvation and refeeding assay indicated that the expression of DIXDC1 was associated with cell cycle. To determine whether DIXDC1 could regulate the proliferation and migration of glioma cells, we transfected glioma cells with interfering RNA-targeting DIXDC1; investigated cell proliferation with Cell Counting Kit (CCK)-8, flow cytometry assays, and colony formation analyses; and investigated cell migration with wound healing assays and transwell assays. According to our data, knockdown of DIXDC1 significantly inhibited proliferation and migration of glioma cells. These data implied that DIXDC1 might participate in the development of glioma, suggesting that DIXDC1 can become a potential therapeutic strategy for glioma.
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30
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Yang C, Liu X, Yang F, Zhang W, Chen Z, Yan D, You Q, Wu X. Mitochondrial phosphatase PGAM5 regulates Keap1-mediated Bcl-xL degradation and controls cardiomyocyte apoptosis driven by myocardial ischemia/reperfusion injury. In Vitro Cell Dev Biol Anim 2016; 53:248-257. [PMID: 27815660 DOI: 10.1007/s11626-016-0105-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 09/29/2016] [Indexed: 01/06/2023]
Abstract
Phosphoglycerate mutase 5 (PGAM5) is a mitochondrial membrane protein that plays crucial roles in necroptosis and apoptosis. Though PGAM5 is known to be required for inducing intrinsic apoptosis through interacting with BCL2 associated X protein (Bax) and dynamin-related protein 1 (Drp1), the expression and role of PGAM5 in cardiomyocyte apoptosis driven by myocardial ischemia/reperfusion injury(MIRI) has not been studied. The present study shows that PGAM5 expression decreased after MIRI in vivo, positively correlated with Bcl-xL expression, negatively correlated with Kelch-ECH associating protein 1 (Keap1) expression. Furthermore, PGAM5 expression also decreased in cardiomyocytes after hypoxia/reoxygenation (H/R) treatment in vitro. PGAM5 silence promoted cardiomyocyte apoptosis and inhibited Bcl-xL expression, but with no effect on Keap1 expression. Accordingly, Keap1 overexpression further inhibited Bcl-xL and PGAM5 expression. Additionally, PGAM5-Bcl-xL-Keap1 interaction was identified, suggesting that PGAM5 might participate in the degradation of Bcl-xL mediated by Keap1. In summary, PGAM5 controls cardiomyocyte apoptosis induced by MIRI through regulating Keap1-mediated Bcl-xL degradation, which may supply a novel molecular target for acute myocardial infarction (AMI) therapy. Graphical abstract ᅟ.
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Affiliation(s)
- Chen Yang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Xiaojuan Liu
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, Jiangsu, 226001, China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, China
| | - Fangfang Yang
- Department of Infection Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Weixun Zhang
- Medical College, Nantong University, Nantong, Jiangsu, 226001, China
| | - Zihao Chen
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Daliang Yan
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Qingsheng You
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China.
| | - Xiang Wu
- Department of Vasculocardiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China.
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31
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Kotta-Loizou I, Vasilopoulos SN, Coutts RHA, Theocharis S. Current Evidence and Future Perspectives on HuR and Breast Cancer Development, Prognosis, and Treatment. Neoplasia 2016; 18:674-688. [PMID: 27764700 PMCID: PMC5071540 DOI: 10.1016/j.neo.2016.09.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/14/2016] [Accepted: 09/19/2016] [Indexed: 12/20/2022] Open
Abstract
Hu-antigen R (HuR) is an RNA-binding posttranscriptional regulator that belongs to the Hu/ELAV family. HuR expression levels are modulated by a variety of proteins, microRNAs, chemical compounds, or the microenvironment, and in turn, HuR affects mRNA stability and translation of various genes implicated in breast cancer formation, progression, metastasis, and treatment. The aim of the present review is to critically summarize the role of HuR in breast cancer development and its potential as a prognosticator and a therapeutic target. In this aspect, all the existing English literature concerning HuR expression and function in breast cancer cell lines, in vivo animal models, and clinical studies is critically presented and summarized. HuR modulates many genes implicated in biological processes crucial for breast cancer formation, growth, and metastasis, whereas the link between HuR and these processes has been demonstrated directly in vitro and in vivo. Additionally, clinical studies reveal that HuR is associated with more aggressive forms of breast cancer and is a putative prognosticator for patients' survival. All the above indicate HuR as a promising drug target for cancer therapy; nevertheless, additional studies are required to fully understand its potential and determine against which types of breast cancer and at which stage of the disease a therapeutic agent targeting HuR would be more effective.
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Affiliation(s)
- Ioly Kotta-Loizou
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, United Kingdom; First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece.
| | - Spyridon N Vasilopoulos
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Robert H A Coutts
- Geography, Environment and Agriculture Division, Department of Biological and Environmental Sciences, School of Life and Medical Sciences, University of Hertfordshire, Hatfield AL10 9AB, United Kingdom
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
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Zhang X, Hua L, Yan D, Zhao F, Liu J, Zhou H, Liu J, Wu M, Zhang C, Chen Y, Chen B, Hu B. Overexpression of PCBP2 contributes to poor prognosis and enhanced cell growth in human hepatocellular carcinoma. Oncol Rep 2016; 36:3456-3464. [PMID: 27748915 DOI: 10.3892/or.2016.5167] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 06/06/2016] [Indexed: 11/06/2022] Open
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33
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Wang Y, Zhang W, Wang X, Wang D, Xie J, Tang C, Xi Q, Zhong J, Deng Y. Expression of Sam68 Correlates With Cell Proliferation and Survival in Epithelial Ovarian Cancer. Reprod Sci 2016; 24:97-108. [PMID: 27222230 DOI: 10.1177/1933719116650757] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Src associated in mitosis, 68 kDa (Sam68) is a KH domain RNA-binding protein that belongs to the signal transduction and activation of RNA family. It is a multifunctional protein known to regulate cellular signal transduction, transcription, RNA metabolism, proliferation, and apoptosis, thus implicated in tumor growth. Herein, we investigated the clinical significance of Sam68 in human epithelial ovarian cancer (EOC). Western blot and immunohistochemical staining demonstrated that Sam68 expression was upregulated in EOC tissues and cell lines. Statistical analysis showed that high expression of Sam68 correlated with poor prognosis of patients with EOC. In vitro, serum starvation-refeeding experiment was primarily performed to confirm that Sam68 participated in the cell cycle progression of EOC cell lines. Then knocking down Sam68 level with small interfering RNA, cell cycle was arrested at G1 phase and cell proliferation impaired. Furthermore, we demonstrated that the antiproliferative effect of silencing Sam68 in EOC cells was associated with the upregulation of cyclin-dependent kinase inhibitors p21Cip1 and p27Kip1, along with the downregulation of p-FOXO3a, p-Akt, and p-GSK-3β. Taken together, our findings uncovered that Sam68 played an important role in promoting the proliferation of human ovarian cancer, thereby might be a novel therapeutic target for EOC.
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Affiliation(s)
- Yingying Wang
- 1 Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Department of Pathogen Biology, Medical College, Nantong University, Nantong, People's Republic of China
| | - Weiwei Zhang
- 2 Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Xia Wang
- 3 Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Di Wang
- 3 Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Juan Xie
- 3 Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Chunhui Tang
- 2 Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Qinghua Xi
- 2 Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Jianxin Zhong
- 2 Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
| | - Yan Deng
- 2 Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong, People's Republic of China
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Bei Y, Huang Q, Shen J, Shi J, Shen C, Xu P, Chang H, Xia X, Xu L, Ji B, Chen J. IGFBP6 Regulates Cell Apoptosis and Migration in Glioma. Cell Mol Neurobiol 2016; 37:889-898. [PMID: 27650075 DOI: 10.1007/s10571-016-0426-4] [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: 02/10/2016] [Accepted: 09/08/2016] [Indexed: 02/07/2023]
Abstract
The insulin-like growth factor binding protein 6 (IGFBP6), as an inhibitor of IGF-II actions, plays an important role in inhibiting survival and migration of tumor cells. In our study, we intended to demonstrate the biological function of IGFBP6 in the development of glioma and its clinical significance. Firstly, Western blot and immunohistochemistry revealed that the expression of IGFBP6 inversely correlated with glioma grade. Secondly, multivariate analysis with the Cox proportional hazards model and Kaplan-Meier analysis indicated that IGFBP6 could be an independent prognostic factor for the survival of glioma patients. In addition, overexpression of IGFBP6 induced glioma cell apoptosis, and depletion of IGFBP6 had the opposite action. Finally, overexpression of IGFBP6 inhibited migration of glioma cells, and depletion of IGFBP6 had the opposite action. Together our findings suggest that IGFBP6 might be an important regulator and prognostic factor for glioma.
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Affiliation(s)
- Yuanqi Bei
- Department of Radiation Oncology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001, People's Republic of China.,Department of Intensive Care Unit, Affiliated Cancer Hospital of Nantong University, Nantong, 226361, People's Republic of China
| | - Qingfeng Huang
- Department of Neurosurgery, The Affiliated Hospital of Nantong University, Xisi Road No. 20, Nantong, 226001, People's Republic of China
| | - Jianhong Shen
- Department of Neurosurgery, The Affiliated Hospital of Nantong University, Xisi Road No. 20, Nantong, 226001, People's Republic of China
| | - Jinlong Shi
- Department of Neurosurgery, The Affiliated Hospital of Nantong University, Xisi Road No. 20, Nantong, 226001, People's Republic of China
| | - Chaoyan Shen
- Department of Radiation Oncology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001, People's Republic of China
| | - Peng Xu
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001, People's Republic of China
| | - Hao Chang
- Department of Neurosurgery, Affiliated Wuxi Second Hospital of Nanjing Medical University, Wuxi, 214002, People's Republic of China
| | - Xiaojie Xia
- Department of Radiation Oncology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001, People's Republic of China
| | - Li Xu
- Department of Neurosurgery, The First Affiliated Hospital of Suzhou University, Suzhou, 215000, People's Republic of China
| | - Bin Ji
- Department of Radiation Oncology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu, People's Republic of China
| | - JianGuo Chen
- Department of Neurosurgery, The Affiliated Hospital of Nantong University, Xisi Road No. 20, Nantong, 226001, People's Republic of China.
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Decreased Expression of EHD2 Promotes Tumor Metastasis and Indicates Poor Prognosis in Hepatocellular Carcinoma. Dig Dis Sci 2016; 61:2554-67. [PMID: 27221498 DOI: 10.1007/s10620-016-4202-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 05/12/2016] [Indexed: 12/25/2022]
Abstract
BACKGROUND Metastasis remains the most common cause of lethal outcomes in hepatocellular carcinoma (HCC) after curative resection. Understanding molecular mechanisms that regulate metastasis process is crucial for improving treatment of hepatocellular carcinoma. AIMS In this article, we examined whether Eps15 homology domain-containing 2 (EHD2) played a critical role in hepatocellular carcinoma metastasis and explored the possible mechanism. METHODS EHD2 and E-cadherin expression levels in hepatocellular carcinoma patients were examined using Western blotting and immunohistochemistry. The cell migration and invasion were evaluated by wound-healing assay and trans-well assay. Epithelial-mesenchymal transition was analyzed by immunofluorescence, and the vital markers were detected by Western blotting. The correlation of EHD2 and E-cadherin was confirmed by co-immunoprecipitation. RESULTS EHD2 expression, along with the epithelial marker E-cadherin, was markedly reduced in tumor tissues than in adjacent noncancerous tissues. Moreover, EHD2 was positively correlated with E-cadherin, histological grade, tumor metastasis, and microvascular invasion. Kaplan-Meier survival analysis showed that hepatocellular carcinoma patients with decreased EHD2 expression had shorter overall survival times than those with higher EHD2 expression. Knockdown of EHD2 induced an increase in cell invasion and changes characteristic of epithelial-mesenchymal transition, while overexpression of EHD2 inhibited these processes. CONCLUSIONS Molecular data indicated that EHD2 inhibited migration and invasion of hepatocellular carcinoma probably by interacting with E-cadherin and it might be an independent, significant risk factor for survival after curative resection.
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Naseh G, Mohammadifard M, Mohammadifard M. Upregulation of cyclin-dependent kinase 7 and matrix metalloproteinase-14 expression contribute to metastatic properties of gastric cancer. IUBMB Life 2016; 68:799-805. [PMID: 27562173 DOI: 10.1002/iub.1543] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 08/10/2016] [Indexed: 01/01/2023]
Abstract
The aim of this study was to evaluate the protein and mRNA expressions of matrix metalloproteinase-14 (MMP14) and CDK7 in gastric cancer (GC) tissues. Upregulation of MMP14 mRNA level was observed in GC tissues when compared with the matched normal tissues (mean ± SD: 3.92 ± 1.15 vs. 1.35 ± 0.81, P < 0.001). This study indicated that mRNA levels of CDK7 were statistically overexpressed in GC when compared with matched normal tissues (4.12 ± 0.84 vs. 1.43 ± 0.71, P < 0.001). The protein levels of MMP14 were found to be increased in GC (60.41%; P < 0.001). The expression of CDK7 was higher in GC tissues than matched normal tissues (70.83; P < 0.001). We found that high MMP14 expression was related to advanced TNM stage (P = 0.004), tumor grade (P = 0.002), and lymph node metastasis (P = 0.015), but no association with other clinical variables (P > 0.05). In addition, high expression of CDK7 was significantly linked to advanced TNM stage (P = 0.001), pathological grade (P = 0.012), and presence of lymph node metastasis (P = 0.009), while no correlation between CDK7 expression and other clinical variables, such as age and gender, distance metastasis. The patients with high expression of MMP14 and CDK7 exhibited worse survival time than those with higher levels. Cox multivariate regression analysis clearly showed that high expression of MMP14 and CDK7 was independent prognostic factors for overall survival in patients with GC. Taken together, these results indicated the overexpression of above markers in the progression and the tumorigenesis of GC and overall patient survival. © 2016 IUBMB Life, 68(10):799-805, 2016.
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Affiliation(s)
- Ghodratolah Naseh
- Department of Surgery, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran
| | - Mahyar Mohammadifard
- Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran.
| | - Mahtab Mohammadifard
- Department of Pathology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Ni S, Chen L, Li M, Zhao W, Shan X, Wu M, Cheng J, Liang L, Wang Y, Jiang W, Zhang J, Ni R. PKC iota promotes cellular proliferation by accelerated G1/S transition via interaction with CDK7 in esophageal squamous cell carcinoma. Tumour Biol 2016; 37:13799-13809. [PMID: 27481515 DOI: 10.1007/s13277-016-5193-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 07/13/2016] [Indexed: 12/22/2022] Open
Abstract
Protein kinase C iota (PKCι) has been shown to play an important role in tumorigenesis of many cancers. It was reported that frequent amplification and overexpression of PKCi were correlated with resistance to anoikis in primary esophageal squamous cell carcinomas (ESCC). In this study, we clarified a novel role of PKCι on the cell cycle progression and proliferation in ESCC. Western blot and immunohistochemistry (IHC) analysis showed that the expression of PKCι was higher in ESCC tumor tissues and cell lines. Meanwhile, IHC stain revealed that PKCι was positively correlated with clinical pathologic variables such as tumor size, tumor grade, and tumor invasion, as well as ki67. Immunoprecipitation and immunofluorescence assay revealed that PKCι/CDK7 has the physical interaction and were co-located in the cell nucleus. And this direct interaction could increase the phosphorylation level of CDK7. In vitro studies such as starvation and refeeding assay along with PKCι-shRNA transfection assay demonstrated that PKCι expression promoted proliferation of ESCC cells. And knocking PKCi down by silencing RNA (siRNA) significantly caused cell cycle arrest at G0/G1 phase, decreased rate of colony formation, and alleviated cellular apoptosis. This research provide new insights into PKCi signaling to more deeply understand its cancer-promoting function in ESCC.
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Affiliation(s)
- Sujie Ni
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Lingling Chen
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Mei Li
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Weijuan Zhao
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Xiaohang Shan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Miaomiao Wu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Jialin Cheng
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Li Liang
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Yayun Wang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Wenyan Jiang
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Jianguo Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China.
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China.
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Ye J, Zhou G, Zhang Z, Sun L, He X, Zhou J. Poly (C)-binding protein 2 (PCBP2) promotes the progression of esophageal squamous cell carcinoma (ESCC) through regulating cellular proliferation and apoptosis. Pathol Res Pract 2016; 212:717-25. [DOI: 10.1016/j.prp.2016.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 04/21/2016] [Accepted: 05/25/2016] [Indexed: 12/14/2022]
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Overexpression of MYCN promotes proliferation of non-small cell lung cancer. Tumour Biol 2016; 37:12855-12866. [PMID: 27449038 DOI: 10.1007/s13277-016-5236-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 07/15/2016] [Indexed: 12/12/2022] Open
Abstract
V-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog (MYCN) is an oncogene that is known amplified and overexpressed in different human malignancies including small cell lung cancer. However, the role of MYCN in non-small cell lung cancer (NSCLC) development remains elusive. In the present study, Western blot and immunohistochemistry assays demonstrated that MYCN was overexpressed in NSCLC tumor tissues and cell lines. In addition, immunohistochemistry analysis revealed that upregulation of MYCN expression was positively correlated with a more invasive tumor phenotype and poor prognosis. In vitro studies using serum starvation-refeeding experiment and MYCN-siRNA transfection assay demonstrated that MYCN expression promoted proliferation of NSCLC cells, while MYCN knockdown led to decreased cell growth resulted from growth arrest of cell cycle at G0/G1 phase. Furthermore, upregulation and knockdown of sex-determining region Y-box 2 (SRY) (SOX2), which was a well-known oncogene, confirmed that MYCN might be a downstream gene of the transcription factor SOX2. Collectively, our finding suggested that MYCN might contribute to the progression of NSCLC by enhancing cell proliferation, and that targeting MYCN might provide beneficial effects for the clinical therapy of NSCLC.
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Liu J, Cui X, Qu L, Hua L, Wu M, Shen Z, Lu C, Ni R. Overexpression of DLX2 is associated with poor prognosis and sorafenib resistance in hepatocellular carcinoma. Exp Mol Pathol 2016; 101:58-65. [PMID: 27302463 DOI: 10.1016/j.yexmp.2016.06.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/04/2016] [Accepted: 06/10/2016] [Indexed: 12/17/2022]
Abstract
The mechanism underlying poor prognosis and sorafenib resistance in patients with hepatocellular carcinoma (HCC) is unknown and, to date, no useful predictive biomarkers of sorafenib resistance have been identified. Distal-less homeobox 2 (DLX2) is a transcription factor involved in cell cycle regulation that is closely correlated with cancer prognosis. In this study, we showed that DLX2 is overexpressed in HCC tissues and cell lines and that the level of DLX2 overexpression is positively correlated with histological grade, metastasis and Ki67 expression, which are indicators of poor prognosis. We also found that DLX2 accumulates in proliferating HCC cells, where it is associated with the expression of proliferating cell nuclear antigen (PCNA), Cyclin D1 and Cyclin A. Flow cytometry and cell counting kit-8 (CCK-8) assays indicated that DLX2 depletion causes cell cycle arrest at the G1 phase and hinders cell proliferation. Moreover, the sensitivity of HCC cells to sorafenib is restored when the DLX2 gene is knocked down using a short interfering RNA. We demonstrated that DLX2 facilitates sorafenib resistance by promoting the expression of markers of epithelial-mesenchymal transition and by activating the extracellular signal-regulated protein kinase pathway. Our findings reveal that DLX2 plays a regulatory role in HCC cell proliferation and suggests that targeting DLX2 represents a novel strategy to increase sorafenib efficacy in the management of HCC. In conclusion, DLX2 is a novel marker of poor prognosis and sorafenib resistance in patients with HCC.
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Affiliation(s)
- Jinxia Liu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - Xiaopeng Cui
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - Lishuai Qu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - Lu Hua
- Grade 14, Clinical Medicine, Medical College, Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - Miaomiao Wu
- Grade 14, Clinical Medicine, Medical College, Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - Zhongyi Shen
- Grade 15, Clinical Medicine, Medical College, Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - Cuihua Lu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China.
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, People's Republic of China.
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Upregulation of CDK7 in gastric cancer cell promotes tumor cell proliferation and predicts poor prognosis. Exp Mol Pathol 2016; 100:514-21. [PMID: 27155449 DOI: 10.1016/j.yexmp.2016.05.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 04/13/2016] [Accepted: 05/02/2016] [Indexed: 12/19/2022]
Abstract
CDK7 has been known as a component of CDK activating kinase (CAK) complex, the complex was composed of CDK7, Cyclin H and RING finger protein Mat1 that contribute to cell cycle progression by phosphorylating other CDKs. In addition, the complex is also an essential component of general transcription factor TFIIH which controls transcription via activating RNA polymerase II by serines 5 and 7 phosphorylation of the carboxyl-terminal domain (CTD) of its largest subunit. However, the role of CDK7 in the pathogenesis of gastric cancer has not been identified. Our study showed that CDK7 was significantly upregulated and positively correlated with tumor grade, infiltration depth, lymph node, Ki-67, and predicted poor prognosis in 173 gastric cancer specimens by immunohistochemistrical analyses. Furthermore, in vitro results indicated that CDK7 promoted proliferation of gastric cancer cells by CCK8, clone formation analyses and flow cytometric analyses, while CDK7 knockdown led to decreased cell proliferation. Our study will provide a theoretical basis for the study of CDK7 in gastric cancer.
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Bao Z, Duan C, Gong C, Wang L, Shen C, Wang C, Cui G. Protein phosphatase 1γ regulates the proliferation of human glioma via the NF-κB pathway. Oncol Rep 2016; 35:2916-26. [PMID: 26936744 DOI: 10.3892/or.2016.4644] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 12/23/2015] [Indexed: 11/06/2022] Open
Abstract
Protein phosphatase 1γ (PP1γ), a member of mammalian protein phosphatases, serine/threonine phosphatases, catalyzes the majority of protein dephosphorylation events and regulates diverse cellular processes, such as neuronal signaling, muscle contraction, glycogen synthesis, and cell proliferation. However, its expression and potential functions in human glioma is unclear. In this study, we detected the high expression of PP1γ and phosphorylated p65 (p-p65) in human glioma tissues. Besides, we demonstrated that upregulation of PP1γ was tightly related to poor 5-year survival via systemic statistical analysis. Employing serum-starved and re-feeding models of U251 and U87MG, we observed the increasing expression of PP1γ and p-p65 were accompanied by the cell proliferation markers cyclin D1 and proliferating cell nuclear antigen (PCNA). Employing depletion-PP1γ models, we found downregulated PP1γ and p-p65 compared with upregulated IκBα, which indicates the inhibition of NF-κB pathway, and flow cytometry analysis confirmed the weakened cell proliferation. Moreover, we found that the translocation of p65 into the nucleus was impaired. Collectively, we identified the positive correlation between upregulation of PP1γ and human glioma cell proliferation and that knock-down of PP1γ alleviated the glioma proliferation by reducing p65 transportation into the nucleus. The results showed that PP1γ could accelerate human glioma proliferation via the NF-κB pathway.
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Affiliation(s)
- Zhen Bao
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Chengwei Duan
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu, P.R. China
| | - Cheng Gong
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Liang Wang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Chaoyan Shen
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu, P.R. China
| | - Cheng Wang
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu, P.R. China
| | - Gang Cui
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
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Zhang T, Zhang X, Shi W, Xu J, Fan H, Zhang S, Ni R. The DNA damage repair protein Ku70 regulates tumor cell and hepatic carcinogenesis by interacting with FOXO4. Pathol Res Pract 2016; 212:153-61. [DOI: 10.1016/j.prp.2015.12.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 10/29/2015] [Accepted: 12/17/2015] [Indexed: 12/31/2022]
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44
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Zhao C, Ban N, Dai S, Zhang X, Zhang L, Xu P, Chen W, Sun J, Bao Z, Chang H, Wang D, Ren J. The role of Alix in the proliferation of human glioma cells. Hum Pathol 2016; 52:110-8. [PMID: 26980041 DOI: 10.1016/j.humpath.2015.09.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Revised: 08/31/2015] [Accepted: 09/10/2015] [Indexed: 12/15/2022]
Abstract
Apoptosis-linked-gene-2-interacting protein 1 (Alix) is involved in the endosome-lysosome system in the cytoplasm. The normal function of Alix may be altered by ALG-2 toward a destructive role during active cell death. Alix also may play a role in regulation of cell proliferation. However, the role of Alix in human glioma has not been elucidated yet. This study intended to clarify the relationship between Alix and glioma pathologic grades and its role in the proliferation of glioma cells. Our findings showed that Alix protein concentrations were significantly elevated in high-grade glioma tissue compared with low-grade glioma (P < .0001). Immunohistochemical study revealed that Alix was overexpressed in 75 resected glioma tissues and may forecast poor survival. Alix expression was increased in resting serum-stimulated glioma cells. Additionally, we reduced Alix expression in U251MG cells and then found that cell viability was decreased significantly when p21 expression increased. Colony formation assay and flow cytometry analysis demonstrated that reduced Alix expression may lead to growth inhibition and cell cycle arrest. In summary, our findings suggest that Alix plays an important role in the proliferation of glioma cells and may be a novel therapeutic target.
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Affiliation(s)
- Chengjin Zhao
- Department of Neurosurgery, Affiliated Second Peoples Hospital of NanTong, Nantong University, Nantong, 226002, Jiangsu Province, People's Republic of China
| | - Na Ban
- Department of Pathology, Medical College and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001
| | - Shirong Dai
- Department of Neurosurgery, Affiliated Second Peoples Hospital of NanTong, Nantong University, Nantong, 226002, Jiangsu Province, People's Republic of China
| | - Xiubing Zhang
- Department of Neurosurgery, Affiliated Second Peoples Hospital of NanTong, Nantong University, Nantong, 226002, Jiangsu Province, People's Republic of China
| | - Li Zhang
- Department of Pathology, Medical College and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001
| | - Peng Xu
- Department of Pathology, Medical College and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001
| | - Wenjuan Chen
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001
| | - Jie Sun
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001
| | - Zhen Bao
- The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu Province
| | - Hao Chang
- Department of Neurosurgery, Wuxi Second People's Hospital of Nanjing Medical University, Wuxi, 214002, China
| | - Donglin Wang
- Department of Pathology, Medical College and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, 226001
| | - Jianbing Ren
- Department of Neurosurgery, Affiliated Second Peoples Hospital of NanTong, Nantong University, Nantong, 226002, Jiangsu Province, People's Republic of China.
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45
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Lu S, Liu R, Su M, Wei Y, Yang S, He S, Wang X, Qiang F, Chen C, Zhao S, Qian L, Shao M, Mao G. Overexpression of HOXC8 is Associated With Poor Prognosis in Epithelial Ovarian Cancer. Reprod Sci 2016; 23:944-54. [DOI: 10.1177/1933719115625845] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Shumin Lu
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Rong Liu
- Department of Pathology, Nantong University Cancer Hospital, Nantong, Jiangsu Province, People’s Republic of China
| | - Min Su
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Yingze Wei
- Department of Pathology, Nantong University Cancer Hospital, Nantong, Jiangsu Province, People’s Republic of China
| | - Shuyun Yang
- Department of Pathology, Nantong University Cancer Hospital, Nantong, Jiangsu Province, People’s Republic of China
| | - Song He
- Department of Pathology, Nantong University Cancer Hospital, Nantong, Jiangsu Province, People’s Republic of China
| | - Xia Wang
- The Center for Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Fulin Qiang
- Department of Pathology, Nantong University Cancer Hospital, Nantong, Jiangsu Province, People’s Republic of China
| | - Chen Chen
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Shuyang Zhao
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Li Qian
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Mengting Shao
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
| | - Guoxin Mao
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People’s Republic of China
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46
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Bao Z, Qiu X, Wang D, Ban N, Fan S, Chen W, Sun J, Xing W, Wang Y, Cui G. High expression of adenylate cyclase-associated protein 1 accelerates the proliferation, migration and invasion of neural glioma cells. Pathol Res Pract 2016; 212:264-73. [PMID: 26810579 DOI: 10.1016/j.prp.2015.12.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 10/26/2015] [Accepted: 12/31/2015] [Indexed: 11/26/2022]
Abstract
Adenylate cyclase-associated protein 1 (CAP1), a conserved member of cyclase-associated proteins was reported to be associated with the proliferation, migration or invasion of the tumors of pancreas, breast and liver, and was involved in astrocyte proliferation after acute Traumatic Brain Injury (TBI). In this study, we sought to investigate the character of CAP1 in the pathological process of human glioma by detecting human glioma specimens and cell lines. 43 of 100 specimens showed high expression of CAP1 via immunohistochemistry. With statistics analysis, we found out the expression level of CAP1 was correlated with the WHO grades of human glioma and was great positively related to Ki-67 (p<0.01). In vitro, silencing CAP1 in U251 and U87MG, the glioma cell lines with the relatively higher expression of CAP1, induced the proliferation of the cells significantly retarded, migration and invasion as well. Obviously, our results indicated that CAP1 participated in the molecular pathological process of glioma indeed, and in a certain sense, CAP1 might be a potential and promising molecular target for glioma diagnosis and therapies in the future.
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Affiliation(s)
- Zhen Bao
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China
| | - Xiaojun Qiu
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, People's Republic of China
| | - Donglin Wang
- Department of Pathology, Medical College of Nantong University, Nantong, Jiangsu Province, People's Republic of China
| | - Na Ban
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu Province, People's Republic of China
| | - Shaochen Fan
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu Province, People's Republic of China
| | - Wenjuan Chen
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu Province, People's Republic of China
| | - Jie Sun
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu Province, People's Republic of China
| | - Weikang Xing
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China
| | - Yunfeng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China
| | - Gang Cui
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China.
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Zhang W, Liu R, Tang C, Xi Q, Lu S, Chen W, Zhu L, Cheng J, Chen Y, Wang W, Zhong J, Deng Y. PFTK1 regulates cell proliferation, migration and invasion in epithelial ovarian cancer. Int J Biol Macromol 2016; 85:405-16. [PMID: 26772918 DOI: 10.1016/j.ijbiomac.2016.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 12/31/2015] [Accepted: 01/03/2016] [Indexed: 02/04/2023]
Abstract
PFTK1, also named Cyclin-Dependent Kinase 14 (CDK14), is a member of the cell division cycle 2 (CDC2)-related protein kinase family. It is a serine/threonine-protein kinase involved in the regulation of cell cycle progression and cell proliferation. In this study, we investigated the role of PFTK1 in epithelial ovarian cancer (EOC) development. The expression of PFTK1 was detected by Western blot and immunohistochemistry staining, both of which demonstrated that PFTK1 was overexpressed in EOC tissues and cells. Statistical analysis showed the expression of PFTK1 was associated with multiple clinicopathological factors, including tumor grade, FIGO stage, lymph node metastatis, Ki-67 expression and predicted a poor prognosis of EOC patients. With in vitro studies we found that PFTK1 expression was decreased in serum-starved ovarian cancer cells, and progressively increased after serum-re-feeding. Knocking PFTK1 down by small interfering RNA (siRNA) significantly inhibited ovarian cancer cell proliferation, migration and invasion. Taken together, our study suggested that PFTK1 played an important role in ovarian cancer development.
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Affiliation(s)
- Weiwei Zhang
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Rong Liu
- Department of Gynecologic Oncology, Nantong University Cancer Hospital, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Chunhui Tang
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Qinghua Xi
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Shumin Lu
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Wenjuan Chen
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Lianxin Zhu
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Jialin Cheng
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Yannan Chen
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Wei Wang
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China
| | - Jianxin Zhong
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China.
| | - Yan Deng
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, People's Republic of China.
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48
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Qian L, Shi J, Zhang C, Lu J, Lu X, Wu K, Yang C, Yan D, Zhang C, You Q, Liu X. Downregulation of RACK1 is associated with cardiomyocyte apoptosis after myocardial ischemia/reperfusion injury in adult rats. In Vitro Cell Dev Biol Anim 2015; 52:305-313. [PMID: 26659395 DOI: 10.1007/s11626-015-9981-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 11/09/2015] [Indexed: 12/12/2022]
Abstract
The receptor for activated C kinase 1 (RACK1) is a multifaceted scaffolding protein that mediates the shuttling of activated protein kinase C (PKC) to cellular membranes. In addition, RACK1 could decrease cell apoptosis in a variety of disease models. However, the function of RACK1 in cardiomyocyte apoptosis after myocardial ischemia/reperfusion (I/R) is unknown. In this study, male Sprague-Dawley rats were anesthetized and subjected to myocardial I/R insult consisting of 30 min left anterior descending coronary artery (LAD) occlusion followed by reperfusion for 1, 2, 4, 6, 8, 12, and 24 h. The expression of RACK1 was decreased after myocardial I/R and was associated with cardiomyocyte apoptosis. To further verify the relationship between RACK1 and cardiomyocyte apoptosis, H9c2 cardiomyocytes were cultured under hypoxia for 6 h, then maintained in the regular incubator to reoxygenation. After H9c2 cells were transfected with Flag-RACK1 to overexpress RACK1, RACK1 expression was upregulated in hypoxia/reoxygenation (H/R) 4 h group accompanied with the decrease of cleaved caspase-3 and the increase of Bcl-2 expression. Terminal transferase-mediated biotin dUTP nick end labeling (TUNEL) assay showed that RACK1 overexpression inhibited H9c2 cell apoptosis induced by H/R treatment. Our data suggested that RACK1 might suppress cardiomyocyte apoptosis after I/R, providing a novel molecular target for the therapy of ischemia heart disease.
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Affiliation(s)
- Long Qian
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Jiahai Shi
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Chi Zhang
- Department of Vasculocardiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Jiawei Lu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Xiaoning Lu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Kunpeng Wu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Chen Yang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Daliang Yan
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Chao Zhang
- Department of Vasculocardiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Qingsheng You
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China. .,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.
| | - Xiaojuan Liu
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China. .,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China.
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Lu S, Liu R, Su M, Wei Y, Yang S, He S, Wang X, Qiang F, Chen C, Zhao S, Zhang W, Xu P, Mao G. Spy1 participates in the proliferation and apoptosis of epithelial ovarian cancer. J Mol Histol 2015; 47:47-57. [DOI: 10.1007/s10735-015-9646-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 11/25/2015] [Indexed: 12/16/2022]
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Zhao C, Chen W, Dai S, Zhang X, Ban N, Fan S, Bao Z, Sun J, Shen C, Xia X, Zhang L, Ren J. Expression and clinical role of RBQ3 in gliomas. J Neurol Sci 2015; 359:177-84. [DOI: 10.1016/j.jns.2015.10.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 10/06/2015] [Accepted: 10/27/2015] [Indexed: 01/19/2023]
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