11
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      CENPE expression is associated with its DNA methylation status in esophageal adenocarcinoma and independently predicts unfavorable overall survival

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Centrosome-associated protein E (CENPE) is a plus end-directed kinetochore motor protein, which plays a critical role in mitosis. In this in silico study, using data from the Cancer Genome Atlas-Esophageal Carcinoma (TCGA-ESCA), we analyzed the expression profile of CENPE mRNA in esophageal squamous cell carcinoma (ESCC) and adenocarcinoma (EA), its independent prognostic value and the potential mechanisms of its dysregulation in EA. Results showed that both ESCC and EA tissues had significantly elevated CENPE expression compared with their respective adjacent normal tissues. However, Kaplan-Meier survival curves showed that high CENPE was associated with unfavorable OS in EA. Univariate and multivariate analysis confirmed that CENPE expression was an independent indicator of unfavorable OS in EA patients, as a continuous variable (HR: 1.861, 95%CI: 1.235–2.806, p = 0.003) or as categorical variables (HR: 2.550, 95%CI: 1.294–5.025, p = 0.007). However, CENPE expression had no prognostic value in ESCC. Compared with the methylation status in normal samples, 3 CpG sites were hypomethylated (cg27388036, cg27443373, and cg24651824) in EA, among which two sites (cg27443373 and cg24651824) showed moderately negative correlation with CENPE expression. In addition, we also found that although heterozygous loss (-1) was frequent in EA (50/88, 56.8%), it was not necessarily associated with decreased CENPE expression compared with the copy neutral (0) cases. The methylation of the -1 group was significantly lower than that of the +1/0 group ( p = 0.04). Based on these findings, we infer that CENPE upregulation in EA might serve as a valuable indicator of unfavorable OS. The methylation status of cg27443373 and cg24651824 might play a critical role in modulating CENPE expression.

          Related collections

          Most cited references19

          • Record: found
          • Abstract: found
          • Article: not found

          CENP-E is a plus end-directed kinetochore motor required for metaphase chromosome alignment.

          Mitosis requires dynamic attachment of chromosomes to spindle microtubules. This interaction is mediated largely by kinetochores. During prometaphase, forces exerted at kinetochores, in combination with polar ejection forces, drive congression of chromosomes to the metaphase plate. A major question has been whether kinetochore-associated microtubule motors play an important role in congression. Using immunodepletion from and antibody addition to Xenopus egg extracts, we show that the kinetochore-associated kinesin-like motor protein CENP-E is essential for positioning chromosomes at the metaphase plate. We further demonstrate that CENP-E powers movement toward microtubule plus ends in vitro. These findings support a model in which CENP-E functions in congression to tether kinetochores to dynamic microtubule plus ends.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Kinetochore kinesin CENP-E is a processive bi-directional tracker of dynamic microtubule tips

            During vertebrate mitosis, the centromere-associated kinesin CENP-E transports misaligned chromosomes to the plus ends of spindle microtubules. Subsequently, the kinetochores that form at the centromeres establish stable associations with microtubule ends, which assemble and disassemble dynamically. Here we provide evidence that after chromosomes have congressed and bi-oriented, the CENP-E motor continues to play an active role at kinetochores, enhancing their links with dynamic microtubule ends. Using a combination of single molecule approaches and laser trapping in vitro we demonstrate that once reaching microtubule ends, CENP-E converts from a lateral transporter into a microtubule tip-tracker which maintains association with both assembling and disassembling microtubule tips. Computational modeling of this behavior supports our proposal that CENP-E tip-tracks bi-directionally via a “tethered motor” mechanism, which relies on both the motor and tail domains of CENP-E. Our results provide a molecular framework for CENP-E's contribution to the stability of attachments between kinetochores and dynamic microtubule ends.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              LSD1-Mediated Epigenetic Reprogramming Drives CENPE Expression and Prostate Cancer Progression

              Androgen receptor (AR) signaling is a key driver of prostate cancer, and androgen-deprivation therapy (ADT) is a standard treatment for patients with advanced and metastatic disease. However, patients receiving ADT eventually develop incurable castration-resistant prostate cancer (CRPC). Here, we report that the chromatin modifier LSD1, an important regulator of AR transcriptional activity, undergoes epigenetic reprogramming in CRPC. LSD1 reprogramming in this setting activated a subset of cell-cycle genes, including CENPE, a centromere binding protein and mitotic kinesin. CENPE was regulated by the co-binding of LSD1 and AR to its promoter, which was associated with loss of RB1 in CRPC. Notably, genetic deletion or pharmacological inhibition of CENPE significantly decreases tumor growth. Our findings show how LSD1-mediated epigenetic reprogramming drives CRPC, and they offer a mechanistic rationale for its therapeutic targeting in this disease. Cancer Res; 77(20); 5479-90. ©2017 AACR.
                Bookmark

                Author and article information

                Contributors
                Role: ConceptualizationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: SupervisionRole: ValidationRole: VisualizationRole: Writing – review & editing
                Role: ConceptualizationRole: Formal analysisRole: InvestigationRole: SoftwareRole: ValidationRole: Writing – review & editing
                Role: Data curationRole: ValidationRole: Writing – original draft
                Role: InvestigationRole: MethodologyRole: Writing – original draft
                Role: MethodologyRole: Writing – review & editing
                Role: ConceptualizationRole: Formal analysisRole: MethodologyRole: SupervisionRole: ValidationRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: ConceptualizationRole: Data curationRole: Formal analysisRole: MethodologyRole: SoftwareRole: Writing – original draft
                Role: MethodologyRole: Supervision
                Role: Formal analysisRole: Funding acquisitionRole: MethodologyRole: SoftwareRole: ValidationRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                4 February 2019
                2019
                : 14
                : 2
                : e0207341
                Affiliations
                [1 ] Cancer Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
                [2 ] Division of Thoracic Surgery, Department of Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
                [3 ] Department of Tumor Center, Gansu Provincial People's Hospital, Lanzhou, China
                Sapporo Ika Daigaku, JAPAN
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Author information
                http://orcid.org/0000-0002-8311-8607
                Article
                PONE-D-18-16980
                10.1371/journal.pone.0207341
                6361429
                30716092
                f520e3b6-d3e5-4c5d-b8ab-94bb3c3cab6a
                © 2019 Zhu et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 8 June 2018
                : 30 October 2018
                Page count
                Figures: 6, Tables: 2, Pages: 14
                Funding
                Funded by: funder-id http://dx.doi.org/10.13039/501100004829, Department of Science and Technology of Sichuan Province;
                Award ID: 30504010336
                Award Recipient :
                Funded by: Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital
                Award ID: 30305031017P
                Award Recipient :
                This work was supported by Department of Science and Technology of Sichuan Province, 30504010336, Ming Zeng; Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, 30305031017P, Ming Zeng. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Research Article
                Biology and life sciences
                Cell biology
                Chromosome biology
                Chromatin
                Chromatin modification
                DNA methylation
                Biology and life sciences
                Genetics
                Epigenetics
                Chromatin
                Chromatin modification
                DNA methylation
                Biology and life sciences
                Genetics
                Gene expression
                Chromatin
                Chromatin modification
                DNA methylation
                Biology and life sciences
                Genetics
                DNA
                DNA modification
                DNA methylation
                Biology and life sciences
                Biochemistry
                Nucleic acids
                DNA
                DNA modification
                DNA methylation
                Biology and life sciences
                Genetics
                Epigenetics
                DNA modification
                DNA methylation
                Biology and life sciences
                Genetics
                Gene expression
                DNA modification
                DNA methylation
                Medicine and Health Sciences
                Oncology
                Cancers and Neoplasms
                Carcinomas
                Squamous Cell Carcinomas
                Biology and Life Sciences
                Anatomy
                Histology
                Medicine and Health Sciences
                Anatomy
                Histology
                Medicine and Health Sciences
                Oncology
                Cancer Treatment
                Radiation Therapy
                Medicine and Health Sciences
                Clinical Medicine
                Clinical Oncology
                Radiation Therapy
                Medicine and Health Sciences
                Oncology
                Clinical Oncology
                Radiation Therapy
                Medicine and Health Sciences
                Oncology
                Basic Cancer Research
                Cancer Genomics
                Biology and Life Sciences
                Genetics
                Genomics
                Genomic Medicine
                Cancer Genomics
                Research and Analysis Methods
                Mathematical and Statistical Techniques
                Statistical Methods
                Multivariate Analysis
                Physical Sciences
                Mathematics
                Statistics
                Statistical Methods
                Multivariate Analysis
                Medicine and Health Sciences
                Oncology
                Cancers and Neoplasms
                Gastrointestinal Tumors
                Esophageal Cancer
                Medicine and Health Sciences
                Oncology
                Cancer Treatment
                Custom metadata
                All relevant data are within the paper and its Supporting Information files.

                Uncategorized
                Uncategorized

                Comments

                Comment on this article