1
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Wambach M, Montani M, Runz J, Stephan C, Jung K, Moch H, Eberli D, Bernhardt M, Hommerding O, Kreft T, Cronauer MV, Kremer A, Mayr T, Hauser S, Kristiansen G. Clinical implications of AGR2 in primary prostate cancer: Results from a large-scale study. APMIS 2024; 132:256-266. [PMID: 38288749 DOI: 10.1111/apm.13382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 01/15/2024] [Indexed: 03/14/2024]
Abstract
Human anterior gradient-2 (AGR2) has been implicated in carcinogenesis of various solid tumours, but the expression data in prostate cancer are contradictory regarding its prognostic value. The objective of this study is to evaluate the expression of AGR2 in a large prostate cancer cohort and to correlate it with clinicopathological data. AGR2 protein expression was analysed immunohistochemically in 1023 well-characterized prostate cancer samples with a validated antibody. AGR2 expression levels in carcinomas were compared with matched tissue samples of adjacent normal glands. AGR2 expression levels were dichotomized and tested for statistical significance. Increased AGR2 expression was found in 93.5% of prostate cancer cases. AGR2 levels were significantly higher in prostate cancer compared with normal prostate tissue. A gradual loss of AGR2 expression was associated with increasing tumour grade (ISUP), and AGR2 expression is inversely related to patient survival, however, multivariable significance is not achieved. AGR2 is clearly upregulated in the majority of prostate cancer cases, yet a true diagnostic value appears unlikely. In spite of the negative correlation of AGR2 expression with increasing tumour grade, no independent prognostic significance was found in this large-scale study.
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Affiliation(s)
- Moritz Wambach
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Matteo Montani
- Institute of Pathology, University Hospital Bern, Bern, Switzerland
| | - Josefine Runz
- Department of Pathology and Molecular Pathology, University Hospital Zurich and University Zurich, Zurich, Switzerland
| | - Carsten Stephan
- Department of Urology, Charité University Hospital, Berlin, Germany
| | - Klaus Jung
- Department of Urology, Charité University Hospital, Berlin, Germany
| | - Holger Moch
- Department of Pathology and Molecular Pathology, University Hospital Zurich and University Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Clinic of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Marit Bernhardt
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | | | - Tobias Kreft
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | | | - Anika Kremer
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Thomas Mayr
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Stefan Hauser
- Clinic of Urology, University Hospital Bonn, Bonn, Germany
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2
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Tsai HW, Chen YL, Wang CI, Hsieh CC, Lin YH, Chu PM, Wu YH, Huang YC, Chen CY. Anterior gradient 2 induces resistance to sorafenib via endoplasmic reticulum stress regulation in hepatocellular carcinoma. Cancer Cell Int 2023; 23:42. [PMID: 36899352 PMCID: PMC9999520 DOI: 10.1186/s12935-023-02879-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/18/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) accounts for almost 80% of all liver cancer cases and is the sixth most common cancer and the second most common cause of cancer-related death worldwide. The survival rate of sorafenib-treated advanced HCC patients is still unsatisfactory. Unfortunately, no useful biomarkers have been verified to predict sorafenib efficacy in HCC. RESULTS We assessed a sorafenib resistance-related microarray dataset and found that anterior gradient 2 (AGR2) is highly associated with overall and recurrence-free survival and with several clinical parameters in HCC. However, the mechanisms underlying the role of AGR2 in sorafenib resistance and HCC progression remain unknown. We found that sorafenib induces AGR2 secretion via posttranslational modification and that AGR2 plays a critical role in sorafenib-regulated cell viability and endoplasmic reticulum (ER) stress and induces apoptosis in sorafenib-sensitive cells. In sorafenib-sensitive cells, sorafenib downregulates intracellular AGR2 and conversely induces AGR2 secretion, which suppresses its regulation of ER stress and cell survival. In contrast, AGR2 is highly intracellularly expressed in sorafenib-resistant cells, which supports ER homeostasis and cell survival. We suggest that AGR2 regulates ER stress to influence HCC progression and sorafenib resistance. CONCLUSIONS This is the first study to report that AGR2 can modulate ER homeostasis via the IRE1α-XBP1 cascade to regulate HCC progression and sorafenib resistance. Elucidation of the predictive value of AGR2 and its molecular and cellular mechanisms in sorafenib resistance could provide additional options for HCC treatment.
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Affiliation(s)
- Hung-Wen Tsai
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Li Chen
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Chun-I Wang
- Department of Biochemistry, School of Medicine, China Medical University, Taichung, Taiwan
| | - Ching-Chuan Hsieh
- Division of General Surgery, Chang Gung Memorial Hospital, Chiayi, 613, Taiwan
| | - Yang-Hsiang Lin
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Pei-Ming Chu
- Department of Anatomy, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Education, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yuh-Harn Wu
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yi-Ching Huang
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Cheng-Yi Chen
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
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3
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Borziak K, Finkelstein J. Gene Expression Markers of Prognostic Importance for Prostate Cancer Risk in Patients with Benign Prostate Hyperplasia. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2022; 2022:73-76. [PMID: 36086411 DOI: 10.1109/embc48229.2022.9871422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Comparative analyses utilizing publicly available big data have the potential to generate novel hypotheses and knowledge. However, this approach is underutilized in the realm of cancer research, particularly for prostate cancer. While the general progression of prostate cancer is now well understood, how individual cell types transition from healthy, to pre-cancerous, to cancerous cell types, remains to be further elucidated. To address this, we re-analyzed two publicly available single-cell RNA-seq datasets of prostate cancer and benign prostate hyperplasia cell types. The differential expression analysis of 15,505 epithelial cell profiles across 18,638 genes revealed 791 genes that were up regulated in prostate cancer epithelial cells. Here we report six markers that show significant upregulation in prostate cancer cells relative to BPH epithelial cells: HPN (5.62X), RAC3 (3.51X), CD24 (2.18X), HOXC6 (1.77X), AGR2 (1.71X), and IGFBP2 (1.28X). In particular, the significant differential expression of AGR2 further supports its clinical relevance in supplementing prostate-specific antigen screening for detecting prostate cancer. These findings have the potential to further advance our knowledge of genes governing the development of cancer in prostate epithelial cells. Clinical Relevance- Our results establish the importance of 6 prostate cancer markers (HPN, RAC3, CD24, HOXC6, AGR2, and IGFBP3) in distinguishing between prostate cancer epithelial cells and benign prostate hyperplasia epithelial cells.
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Chelebian E, Avenel C, Kartasalo K, Marklund M, Tanoglidi A, Mirtti T, Colling R, Erickson A, Lamb AD, Lundeberg J, Wählby C. Morphological Features Extracted by AI Associated with Spatial Transcriptomics in Prostate Cancer. Cancers (Basel) 2021; 13:4837. [PMID: 34638322 PMCID: PMC8507756 DOI: 10.3390/cancers13194837] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 11/16/2022] Open
Abstract
Prostate cancer is a common cancer type in men, yet some of its traits are still under-explored. One reason for this is high molecular and morphological heterogeneity. The purpose of this study was to develop a method to gain new insights into the connection between morphological changes and underlying molecular patterns. We used artificial intelligence (AI) to analyze the morphology of seven hematoxylin and eosin (H&E)-stained prostatectomy slides from a patient with multi-focal prostate cancer. We also paired the slides with spatially resolved expression for thousands of genes obtained by a novel spatial transcriptomics (ST) technique. As both spaces are highly dimensional, we focused on dimensionality reduction before seeking associations between them. Consequently, we extracted morphological features from H&E images using an ensemble of pre-trained convolutional neural networks and proposed a workflow for dimensionality reduction. To summarize the ST data into genetic profiles, we used a previously proposed factor analysis. We found that the regions were automatically defined, outlined by unsupervised clustering, associated with independent manual annotations, in some cases, finding further relevant subdivisions. The morphological patterns were also correlated with molecular profiles and could predict the spatial variation of individual genes. This novel approach enables flexible unsupervised studies relating morphological and genetic heterogeneity using AI to be carried out.
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Affiliation(s)
- Eduard Chelebian
- Science for Life Laboratory, Department of Information Technology, Uppsala University, 752 37 Uppsala, Sweden;
| | - Christophe Avenel
- Science for Life Laboratory, Department of Information Technology, Uppsala University, 752 37 Uppsala, Sweden;
| | - Kimmo Kartasalo
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, 171 77 Stockholm, Sweden;
| | - Maja Marklund
- Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, 171 65 Solna, Sweden; (M.M.); (J.L.)
| | - Anna Tanoglidi
- Department of Clinical Pathology, Uppsala University Hospital, 752 37 Uppsala, Sweden;
| | - Tuomas Mirtti
- Department of Pathology, Research Program in Systems Oncology, University of Helsinki, Helsinki University Hospital, 00100 Helsinki, Finland;
| | - Richard Colling
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford OX3 7DQ, UK; (R.C.); (A.E.); (A.D.L.)
- Department of Cellular Pathology, Oxford University Hospitals NHS Foundation Trust, Oxford OX3 9DU, UK
| | - Andrew Erickson
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford OX3 7DQ, UK; (R.C.); (A.E.); (A.D.L.)
| | - Alastair D. Lamb
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford OX3 7DQ, UK; (R.C.); (A.E.); (A.D.L.)
- Department of Urology, Oxford University Hospitals NHS Foundation Trust, Oxford OX3 7LE, UK
| | - Joakim Lundeberg
- Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, 171 65 Solna, Sweden; (M.M.); (J.L.)
| | - Carolina Wählby
- Science for Life Laboratory, Department of Information Technology, Uppsala University, 752 37 Uppsala, Sweden;
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5
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Dhakal P, Fitzgerald HC, Kelleher AM, Liu H, Spencer TE. Uterine glands impact embryo survival and stromal cell decidualization in mice. FASEB J 2021; 35:e21938. [PMID: 34547143 DOI: 10.1096/fj.202101170rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/11/2022]
Abstract
Uterine glands are essential for the establishment of pregnancy and have critical roles in endometrial receptivity to blastocyst implantation, stromal cell decidualization, and placentation. Uterine gland dysfunction is considered a major contributing factor to pregnancy loss, however our understanding of how glands impact embryo survival and stromal cell decidualization is incomplete. Forkhead box A2 (FOXA2) is expressed only in the glandular epithelium and regulates its development and function. Mice with a conditional deletion of FOXA2 in the uterus are infertile due to defective embryo implantation arising from a lack of leukemia inhibitory factor (LIF), a critical factor of uterine gland origin. Here, a glandless FOXA2-deficient mouse model, coupled with LIF repletion to rescue the implantation defect, was used to investigate the roles of uterine glands in embryo survival and decidualization. Studies found that embryo survival and decidualization were compromised in glandless FOXA2-deficient mice on gestational day 6.5, resulting in abrupt pregnancy loss by day 7.5. These findings strongly support the hypothesis that uterine glands secrete factors other than LIF that impact embryo survival and stromal cell decidualization for pregnancy success.
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Affiliation(s)
- Pramod Dhakal
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | | | - Andrew M Kelleher
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA.,Division of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Hongyu Liu
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Thomas E Spencer
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA.,Division of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, Missouri, USA
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6
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Zamzam Y, Abdelmonem Zamzam Y, Aboalsoud M, Harras H. The Utility of SOX2 and AGR2 Biomarkers as Early Predictors of Tamoxifen Resistance in ER-Positive Breast Cancer Patients. Int J Surg Oncol 2021; 2021:9947540. [PMID: 34567804 PMCID: PMC8460385 DOI: 10.1155/2021/9947540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 09/01/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Despite the undeniable benefit of tamoxifen therapy for ER-positive breast cancer patients, approximately one-third of those patients either do not respond to tamoxifen or develop resistance. Thus, it is a crucial step to identify novel, reliable, and easily detectable biomarkers indicating resistance to this drug. OBJECTIVE The aim of this work is to explore SOX2 and AGR2 biomarker expression in the tumor tissue of ER-positive breast cancer patients in combination with the evaluation of serum AGR2 level of these patients in order to validate these biomarkers as early predictors of tamoxifen resistance. METHODS This study was conducted on 224 ER-positive breast cancer patients. All patients were primarily subjected to serum AGR2 levelling by ELISA and their breast cancer tissue immunostained for SOX2 and AGR2. After 5 years of follow-up, the patients were divided into 3 groups: group 1 was tamoxifen sensitive and groups 2 and 3 were tamoxifen resistant. Time to failure of tamoxifen treatment was considered the time from the beginning of tamoxifen therapy to the time of discovery of breast cancer recurrence or metastases (in months). RESULTS SOX2 and AGR2 biomarkers expression and serum AGR2 level were significantly higher in groups 2 and 3 in comparison to group 1, while the relationship between Her2 neu expression and Ki67 index in the 3 different groups was statistically nonsignificant. Lower SOX2 and AGR2 expression and low AGR2 serum levels in the studied patients of groups 2 and 3 were significantly associated with longer time-to-failure of tamoxifen treatment. According to the ROC curve, the combined use of studied markers validity was with a sensitivity of 100%, specificity of 96%, PPV 96%, and NPV 100% (p < 0.001; AUC: 0.984). CONCLUSIONS Integrated use of SOX2 and AGR2 biomarkers with serum AGR2 assay holds a promising hope for their future use as predictive markers for early detection of tamoxifen resistance in ER-positive breast cancer patients.
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Affiliation(s)
- Yomna Zamzam
- Department of Pathology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Marwa Aboalsoud
- Department of Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Heba Harras
- Department of Pathology, Faculty of Medicine, Tanta University, Tanta, Egypt
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7
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de Moraes CL, Cruz E Melo N, Valoyes MAV, Naves do Amaral W. AGR2 and AGR3 play an important role in the clinical characterization and prognosis of basal like breast cancer. Clin Breast Cancer 2021; 22:e242-e252. [PMID: 34462207 DOI: 10.1016/j.clbc.2021.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/10/2021] [Accepted: 07/18/2021] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Basal-like Breast Cancer (BLBC) represents an important molecular subtype of breast cancer characterized by an aggressive behavior, molecular pathology poorly understood and a limited treatment. OBJECTIVE We aim to search for molecular differences between non-BLBC and BLBC tumors in order to propose possible diagnostic and prognostic biomarkers using databases. Metodology: Microarray processed data were downloaded from GEO database considering non-BLBC and BLBC. Enrichment analysis was evaluated using GO consortium and Ingenuity, protein-protein interaction, gene Ontology and co-expression analysis using STRING. Gene expression data was extracted using TCGA, METABRIC and Breast Cancer Gene-Expression Miner v4.2 databases. The Survival was evaluated using The Kaplan-Meier plotter. RESULTS Were identified 58 upregulated and 58 downregulated genes enriched in signaling pathways like PDGF, Angiogenesis, Integrin and WNT. AGR2 and AGR3 expression were reduced in BLBC in relation to non-BLBC tumors, patients aged ≤51 years, and with negativity of ER, PR and HER-2 and nodal status. Low expression of AGR2 and AGR3 were associated with worse OS and RFS for all breast cancer cases. But according to the molecular stratification, low AGR2 conferred worst OS in luminal A, worst RFS in BLBC and good OS and RFS in luminal B. High AGR3 conferred worse OS and RFS in BLBC, but low AGR3 attributed worse OS in luminal A. CONCLUSION AGR2 and AGR3 expression were able to differentiate non-BLBC from BLBC. Downregulation of AGR2 and AGR3 was associated with BLBC clinical phenotype. Furthermore, both genes behave different when considering prognosis and molecular stratification.
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Affiliation(s)
- Carolina Leão de Moraes
- Department of Gynaecology and Obstetrics, Faculty of Medicine, Federal University of Goiás, Goiânia, Brazil.
| | - Natália Cruz E Melo
- Department of Gynaecology and Obstetrics, Faculty of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Maira Andrea Valoyes Valoyes
- Discipline of Oncology, Department of Radiology and Oncology, Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil; Laboratory of Molecular Genetics, Center for Translational Research in Oncology (LIM24), Cancer Institute of Sao Paulo, Sao Paulo, Brazil
| | - Waldemar Naves do Amaral
- Department of Gynaecology and Obstetrics, Faculty of Medicine, Federal University of Goiás, Goiânia, Brazil; Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Goiás, Goiânia, Brazil
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8
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Gomig THB, Gontarski AM, Cavalli IJ, Souza RLRD, Lucena ACR, Batista M, Machado KC, Marchini FK, Marchi FA, Lima RS, Urban CDA, Marchi RD, Cavalli LR, Ribeiro EMDSF. Integrated analysis of label-free quantitative proteomics and bioinformatics reveal insights into signaling pathways in male breast cancer. Genet Mol Biol 2021; 44:e20190410. [PMID: 33656060 PMCID: PMC7926483 DOI: 10.1590/1678-4685-gmb-2019-0410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 01/18/2021] [Indexed: 01/04/2023] Open
Abstract
Male breast cancer (MBC) is a rare malignancy that accounts for about 1.8% of all breast cancer cases. In contrast to the high number of the “omics” studies in breast cancer in women, only recently molecular approaches have been performed in MBC research. High-throughput proteomics based methodologies are promisor strategies to characterize the MBC proteomic signatures and their association with clinico-pathological parameters. In this study, the label-free quantification-mass spectrometry and bioinformatics approaches were applied to analyze the proteomic profiling of a MBC case using the primary breast tumor and the corresponding axillary metastatic lymph nodes and adjacent non-tumor breast tissues. The differentially expressed proteins were identified in the signaling pathways of granzyme B, sirtuins, eIF2, actin cytoskeleton, eNOS, acute phase response and calcium and were connected to the upstream regulators MYC, PI3K SMARCA4 and cancer-related chemical drugs. An additional proteomic comparative analysis was performed with a primary breast tumor of a female patient and revealed an interesting set of proteins, which were mainly involved in cancer biology. Together, our data provide a relevant data source for the MBC research that can help the therapeutic strategies for its management.
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Affiliation(s)
| | - Amanda Moletta Gontarski
- Universidade Federal do Paraná, Departamento de Genética, Programa de Pós-graduação em Genética, Curitiba, PR, Brazil
| | - Iglenir João Cavalli
- Universidade Federal do Paraná, Departamento de Genética, Programa de Pós-graduação em Genética, Curitiba, PR, Brazil
| | | | | | - Michel Batista
- Instituto Carlos Chagas, Laboratório de Genômica Funcional, Curitiba, PR, Brazil.,Fundação Oswaldo Cruz (Fiocruz), Plataforma de Espectrometria de Massas, Curitiba, PR, Brazil
| | | | - Fabricio Klerynton Marchini
- Instituto Carlos Chagas, Laboratório de Genômica Funcional, Curitiba, PR, Brazil.,Fundação Oswaldo Cruz (Fiocruz), Plataforma de Espectrometria de Massas, Curitiba, PR, Brazil
| | | | - Rubens Silveira Lima
- Hospital Nossa Senhora das Graças, Centro de Doenças da Mama, Curitiba, PR, Brazil
| | | | | | - Luciane Regina Cavalli
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil.,Georgetown University, Lombardi Comprehensive Cancer Center, Washington, USA
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9
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Identification of key genes in benign prostatic hyperplasia using bioinformatics analysis. World J Urol 2021; 39:3509-3516. [PMID: 33564912 DOI: 10.1007/s00345-021-03625-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/30/2021] [Indexed: 01/17/2023] Open
Abstract
PURPOSE This study aimed to identify differentially expressed genes (DEGs) and pathways in benign prostatic hyperplasia (BPH) by comprehensive bioinformatics analysis. METHODS Data of the gene expression microarray (GSE6099) were downloaded from GEO database. DEGs were obtained by GEO2R. Functional and enrichment analyses of selected genes were performed using DAVID database. Protein-protein interaction network was constructed through STRING. Anterior gradient 2 (ARG2) and lumican (LUM) staining in paraffin-embedded specimens from BPH and normal prostate (NP) were detected by immunohistochemistry (IHC). Differences between groups were analyzed by the Student's t test. RESULTS A total of 24 epithelial DEGs and 39 stromal DEGs were determined. The GO analysis results showed that epithelial DEGs between BPH and NP were enriched in biological processes of glucose metabolic process, glucose homeostasis and negative regulation of Rho protein signal transduction. For DEGs in stroma, enriched biological processes included response to ischemia, antigen processing and presentation, cartilage development, T cell costimulation and energy reserve metabolic process. ARG2, as one of the epithelial DEGs, was mainly located in epithelial cells of prostate. In addition, LUM is primarily expressed in the stroma. We further confirmed that compared with NP, the BPH have the lower ARG2 protein level (p = 0.029) and higher LUM protein level (p = 0.003) using IHC. CONCLUSIONS Our study indicated that there are possible differentially expressed genes in epithelial and stromal cells, such as ARG2 and LUM, which may provide a novel insight for the pathogenesis of BPH.
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10
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Chen Z, Ge M. Discovering pathways in benign prostate hyperplasia: A functional genomics pilot study. Exp Ther Med 2021; 21:242. [PMID: 33603850 PMCID: PMC7851599 DOI: 10.3892/etm.2021.9673] [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: 02/24/2020] [Accepted: 10/13/2020] [Indexed: 11/06/2022] Open
Abstract
Benign prostate hyperplasia (BPH) is one of the well-known urological neoplasms common in males with an increasing number of associated deaths in aging males. It causes uncomfortable urinary symptoms, including urine flow blockage, and may cause bladder, urinary tract or kidney problems. The histopathological and clinical knowledge regarding BPH is limited. In the present study, an in silico approach was applied that uses genome-scale microarray expression data to discover a wide range of protein-protein interactions in addition to focusing on specific genes responsible for BPH to develop prognostic biomarkers. Various genes that were differentially expressed in BPH were identified. Gene and functional annotation clusters were determined and an interaction analysis with disease phenotypes of BPH was performed, as well as an RNA tissue specificity analysis. Furthermore, a molecular docking study of certain short-listed gene biomarkers, namely anterior gradient 2 (AGR2; PDB ID: 2LNT), steroid 5α-reductase 2 (PDB ID: 6OQX), zinc finger protein 3 (PDB ID: 5T00) and collagen type XII α1 chain (PDB ID: 1U5M), was performed in order to identify alternative Chinese herbal agents for the treatment of BPH. Data from the present study revealed that AGR2 receptor (PDB ID: 2LNT) and berberine (Huang Bo) form the most stable complex and therefore may be assessed in further pharmacological studies for the treatment of BPH.
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Affiliation(s)
- Zheling Chen
- Department of Traditional Chinese Medicine, Zhenxin Community Health Service Center, Shanghai 201824, P.R. China
| | - Minyao Ge
- Department of Urology Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
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11
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Wang YA, Sfakianos J, Tewari AK, Cordon-Cardo C, Kyprianou N. Molecular tracing of prostate cancer lethality. Oncogene 2020; 39:7225-7238. [PMID: 33046797 DOI: 10.1038/s41388-020-01496-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/16/2020] [Accepted: 09/28/2020] [Indexed: 01/14/2023]
Abstract
Prostate cancer is diagnosed mostly in men over the age of 50 years, and has favorable 5-year survival rates due to early cancer detection and availability of curative surgical management. However, progression to metastasis and emergence of therapeutic resistance are responsible for the majority of prostate cancer mortalities. Recent advancement in sequencing technologies and computational capabilities have improved the ability to organize and analyze large data, thus enabling the identification of novel biomarkers for survival, metastatic progression and patient prognosis. Large-scale sequencing studies have also uncovered genetic and epigenetic signatures associated with prostate cancer molecular subtypes, supporting the development of personalized targeted-therapies. However, the current state of mainstream prostate cancer management does not take full advantage of the personalized diagnostic and treatment modalities available. This review focuses on interrogating biomarkers of prostate cancer progression, including gene signatures that correspond to the acquisition of tumor lethality and those of predictive and prognostic value in progression to advanced disease, and suggest how we can use our knowledge of biomarkers and molecular subtypes to improve patient treatment and survival outcomes.
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Affiliation(s)
- Yuanshuo Alice Wang
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - John Sfakianos
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ashutosh K Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Carlos Cordon-Cardo
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Department of Pathology and Laboratory Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Natasha Kyprianou
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Department of Pathology and Laboratory Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
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12
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Ma X, Guo J, Liu K, Chen L, Liu D, Dong S, Xia J, Long Q, Yue Y, Zhao P, Hu F, Xiao Z, Pan X, Xiao K, Cheng Z, Ke Z, Chen ZS, Zou C. Identification of a distinct luminal subgroup diagnosing and stratifying early stage prostate cancer by tissue-based single-cell RNA sequencing. Mol Cancer 2020; 19:147. [PMID: 33032611 PMCID: PMC7545561 DOI: 10.1186/s12943-020-01264-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/25/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The highly intra-tumoral heterogeneity and complex cell origination of prostate cancer greatly limits the utility of traditional bulk RNA sequencing in finding better biomarker for disease diagnosis and stratification. Tissue specimens based single-cell RNA sequencing holds great promise for identification of novel biomarkers. However, this technique has yet been used in the study of prostate cancer heterogeneity. METHODS Cell types and the corresponding marker genes were identified by single-cell RNA sequencing. Malignant states of different clusters were evaluated by copy number variation analysis and differentially expressed genes of pseudo-bulks sequencing. Diagnosis and stratification of prostate cancer was estimated by receiver operating characteristic curves of marker genes. Expression characteristics of marker genes were verified by immunostaining. RESULTS Fifteen cell groups including three luminal clusters with different expression profiles were identified in prostate cancer tissues. The luminal cluster with the highest copy number variation level and marker genes enriched in prostate cancer-related metabolic processes was considered the malignant cluster. This cluster contained a distinct subgroup with high expression level of prostate cancer biomarkers and a strong distinguishing ability of normal and cancerous prostates across different pathology grading. In addition, we identified another marker gene, Hepsin (HPN), with a 0.930 area under the curve score distinguishing normal tissue from prostate cancer lesion. This finding was further validated by immunostaining of HPN in prostate cancer tissue array. CONCLUSION Our findings provide a valuable resource for interpreting tumor heterogeneity in prostate cancer, and a novel candidate marker for prostate cancer management.
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Affiliation(s)
- Xiaoshi Ma
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Jinan Guo
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
- Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Shenzhen, Guangdong, China
| | - Kaisheng Liu
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Lipeng Chen
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Dale Liu
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Shaowei Dong
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Jinquan Xia
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Qiaoyun Long
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Yongjian Yue
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Pan Zhao
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
- Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Shenzhen, Guangdong, China
| | - Fengyan Hu
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Zhangang Xiao
- Key Laboratory of Medical Electrophysiology of Education Ministry, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Xinghua Pan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou, Guangdong, China
- Guangdong-Hongkong-Macao Great Bar Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong, China
| | - Kefeng Xiao
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Zhiqiang Cheng
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
- Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Shenzhen, Guangdong, China
| | - Zunfu Ke
- Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York, USA.
| | - Chang Zou
- Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China.
- Shenzhen Public Service Platform on Tumor Precision Medicine and Molecular Diagnosis, Shenzhen, Guangdong, China.
- Key Laboratory of Medical Electrophysiology of Education Ministry, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China.
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13
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Lakshmanan VK, Ojha S, Jung YD. A modern era of personalized medicine in the diagnosis, prognosis, and treatment of prostate cancer. Comput Biol Med 2020; 126:104020. [PMID: 33039808 DOI: 10.1016/j.compbiomed.2020.104020] [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] [Received: 06/02/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 12/24/2022]
Abstract
The present era is witnessing rapid advancements in the field of medical informatics and modern healthcare management. The role of translational bioinformatics (TBI), an infant discipline in the field of medical informatics, is pivotal in this revolution. The development of high-throughput technologies [e.g., microarrays, next-generation sequencing (NGS)] has propelled TBI to the next stage in this modern era of medical informatics. In this review, we assess the promising translational outcomes of microarray- and NGS-based discovery of genes, proteins, micro RNAs, and other active biological compounds aiding in the diagnosis, prognosis, and therapy of prostate cancer (PCa) to improve treatment strategies at the localized and/or metastatic stages in patients. Several promising candidate biomarkers in circulating blood (miR-25-3p and miR-18b-5p), urine (miR-95, miR-21, miR-19a, and miR-19b), and prostatic secretions (miR-203) have been identified. AURKA and MYCN, novel candidate biomarkers, were found to be specifically expressed in neuroendocrine PCa. The use of BTNL2 gene mutations and inflammasomes as biomarkers in immune function-mediated, inherited PCa has also been elucidated based on NGS data. Although TBI discoveries can benefit clinical performance metrics, the translational potential and the in vivo performance of TBI outcomes need to be verified. In conclusion, TBI aids in the effective clinical management of PCa; furthermore, the fate of personalized/precision medicine mostly relies on the enhanced diagnostic, prognostic, and therapeutic potential of TBI.
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Affiliation(s)
- Vinoth-Kumar Lakshmanan
- Centre for Preclinical and Translational Medical Research (CPTMR), Central Research Facility (CRF), Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, 600 116, Tamil Nadu, India; Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, 4184, United Arab Emirates.
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Young Do Jung
- Department of Biochemistry, Chonnam National University Medical School, 160 Baeksuh-Roh, Dong Gu, Gwangju, 61469, Republic of Korea
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14
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Moidu NA, A Rahman NS, Syafruddin SE, Low TY, Mohtar MA. Secretion of pro-oncogenic AGR2 protein in cancer. Heliyon 2020; 6:e05000. [PMID: 33005802 PMCID: PMC7519367 DOI: 10.1016/j.heliyon.2020.e05000] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/25/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Anterior gradient-2 (AGR2) protein mediates the formation, breakage and isomerization of disulphide bonds during protein maturation in the endoplasmic reticulum (ER) and contributes to the homoeostasis of the secretory pathway. AGR2 promotes tumour development and metastasis and its elevated expression is almost completely restricted to malignant tumours. Interestingly, this supposedly ER-resident protein can be localised to other compartments of cancer cells and can also be secreted into the extracellular milieu. There are emerging evidences that describe the gain-of-function activities of the extracellular AGR2, particularly in cancer development. Here, we reviewed studies detailing the expression, pathological and physiological roles associated with AGR2 and compared the duality of localization, intracellular and extracellular, with special emphasis on the later. We also discussed the possible mechanisms of AGR2 secretion as well as deliberating the functional impacts of AGR2 in cancer settings. Last, we deliberate the current therapeutic strategies and posit the potential use AGR2, as a prognosis and diagnosis marker in cancer.
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Affiliation(s)
- Nurshahirah Ashikin Moidu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000 Kuala Lumpur, Malaysia
| | - Nisa Syakila A Rahman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000 Kuala Lumpur, Malaysia
| | - Saiful Effendi Syafruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000 Kuala Lumpur, Malaysia
| | - Teck Yew Low
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000 Kuala Lumpur, Malaysia
| | - M Aiman Mohtar
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000 Kuala Lumpur, Malaysia
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15
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Delom F, Mohtar MA, Hupp T, Fessart D. The anterior gradient-2 interactome. Am J Physiol Cell Physiol 2020; 318:C40-C47. [DOI: 10.1152/ajpcell.00532.2018] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The anterior gradient-2 (AGR2) is an endoplasmic reticulum (ER)-resident protein belonging to the protein disulfide isomerase family that mediates the formation of disulfide bonds and assists the protein quality control in the ER. In addition to its role in proteostasis, extracellular AGR2 is responsible for various cellular effects in many types of cancer, including cell proliferation, survival, and metastasis. Various OMICs approaches have been used to identify AGR2 binding partners and to investigate the functions of AGR2 in the ER and outside the cell. Emerging data showed that AGR2 exists not only as monomer, but it can also form homodimeric structure and thus interact with different partners, yielding different biological outcomes. In this review, we summarize the AGR2 “interactome” and discuss the pathological and physiological role of such AGR2 interactions.
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Affiliation(s)
- Frederic Delom
- University of Bordeaux, ACTION, Bordeaux, France
- Institut National de la Santé et de la Recherche Médicale, Bordeaux, France
- Institut Bergonié, Bordeaux, France
| | - M. Aiman Mohtar
- University Kebangsaan Malaysia, Medical Molecular Biology Institute (UMBI), The National University of Malaysia, Kuala Lumpur, Malaysia
| | - Ted Hupp
- University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom
- University of Gdansk, International Centre for Cancer Vaccine Science, Gdansk, Poland
| | - Delphine Fessart
- University of Bordeaux, ACTION, Bordeaux, France
- Institut National de la Santé et de la Recherche Médicale, Bordeaux, France
- Institut Bergonié, Bordeaux, France
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16
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Gene Expression Alterations during Development of Castration-Resistant Prostate Cancer Are Detected in Circulating Tumor Cells. Cancers (Basel) 2019; 12:cancers12010039. [PMID: 31877738 PMCID: PMC7016678 DOI: 10.3390/cancers12010039] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 12/19/2019] [Indexed: 11/24/2022] Open
Abstract
Development of castration-resistant prostate cancer (CRPC) is associated with alterations in gene expression involved in steroidogenesis and androgen signaling. This study investigates whether gene expression changes related to CRPC development can be identified in circulating tumor cells (CTCs). Gene expression in paired CTC samples from 29 patients, before androgen deprivation therapy (ADT) and at CRPC relapse, was compared using a panel including 47 genes related to prostate cancer progression on a qPCR platform. Fourteen genes displayed significantly changed gene expression in CTCs at CRPC relapse compared to before start of ADT. The genes with increased expression at CRPC relapse were related to steroidogenesis, AR-signaling, and anti-apoptosis. In contrast, expression of prostate markers was downregulated at CRPC. We also show that midkine (MDK) expression in CTCs from metastatic hormone-sensitive prostate cancer (mHSPC) was associated to short cancer-specific survival (CSS). In conclusion, this study shows that gene expression patterns in CTCs reflect the development of CRPC, and that MDK expression levels in CTCs are prognostic for cancer-specific survival in mHSPC. This study emphasizes the role of CTCs in exploring mechanisms of therapy resistance, as well as a promising biomarker for prognostic and treatment-predictive purposes in advanced mHSPC.
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17
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Broustas CG, Hopkins KM, Panigrahi SK, Wang L, Virk RK, Lieberman HB. RAD9A promotes metastatic phenotypes through transcriptional regulation of anterior gradient 2 (AGR2). Carcinogenesis 2019; 40:164-172. [PMID: 30295739 DOI: 10.1093/carcin/bgy131] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/17/2018] [Accepted: 10/04/2018] [Indexed: 01/01/2023] Open
Abstract
RAD9A plays an important role in prostate tumorigenesis and metastasis-related phenotypes. The protein classically functions as part of the RAD9A-HUS1-RAD1 complex but can also act independently. RAD9A can selectively transactivate multiple genes, including CDKN1A and NEIL1 by binding p53-consensus sequences in or near promoters. RAD9A is overexpressed in human prostate cancer specimens and cell lines; its expression correlates with tumor progression. Silencing RAD9A in prostate cancer cells impairs their ability to form tumors in vivo and migrate as well as grow anchorage independently in vitro. We demonstrate herein that RAD9A transcriptionally controls AGR2, a gene aberrantly overexpressed in patients with metastatic prostate cancer. Transient or stable knockdown of RAD9A in PC-3 cells caused downregulation of AGR2 protein abundance. Reduced AGR2 protein levels were due to lower abundance of AGR2 mRNA. The AGR2 genomic region upstream of the coding initiation site contains several p53 consensus sequences. RAD9A bound specifically to the 5'-untranslated region of AGR2 in PC-3 cells at a partial p53 consensus sequence at position +3136 downstream from the transcription start site, determined by chromatin immunoprecipitation, followed by PCR amplification. Binding of RAD9A to the p53 consensus sequence was sufficient to drive AGR2 gene transcription, shown by a luciferase reporter assay. In contrast, when the RAD9A-binding sequence on the AGR2 was mutated, no luciferase activity was detected. Knockdown of RAD9A in PC-3 cells impaired cell migration and anchorage-independent growth. However, ectopically expressed AGR2 in RAD9A-depleted PC-3 cells restored these phenotypes. Our results suggest RAD9A drives metastasis by controlling AGR2 abundance.
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Affiliation(s)
- Constantinos G Broustas
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Kevin M Hopkins
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Sunil K Panigrahi
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Li Wang
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Renu K Virk
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Howard B Lieberman
- Center for Radiological Research, Columbia University Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA.,Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University Irving Medical Center, New York, NY, USA
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18
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Zhu Y, Weiss T, Zhang Q, Sun R, Wang B, Yi X, Wu Z, Gao H, Cai X, Ruan G, Zhu T, Xu C, Lou S, Yu X, Gillet L, Blattmann P, Saba K, Fankhauser CD, Schmid MB, Rutishauser D, Ljubicic J, Christiansen A, Fritz C, Rupp NJ, Poyet C, Rushing E, Weller M, Roth P, Haralambieva E, Hofer S, Chen C, Jochum W, Gao X, Teng X, Chen L, Zhong Q, Wild PJ, Aebersold R, Guo T. High-throughput proteomic analysis of FFPE tissue samples facilitates tumor stratification. Mol Oncol 2019; 13:2305-2328. [PMID: 31495056 PMCID: PMC6822243 DOI: 10.1002/1878-0261.12570] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/09/2019] [Accepted: 09/03/2019] [Indexed: 11/06/2022] Open
Abstract
Formalin‐fixed, paraffin‐embedded (FFPE), biobanked tissue samples offer an invaluable resource for clinical and biomarker research. Here, we developed a pressure cycling technology (PCT)‐SWATH mass spectrometry workflow to analyze FFPE tissue proteomes and applied it to the stratification of prostate cancer (PCa) and diffuse large B‐cell lymphoma (DLBCL) samples. We show that the proteome patterns of FFPE PCa tissue samples and their analogous fresh‐frozen (FF) counterparts have a high degree of similarity and we confirmed multiple proteins consistently regulated in PCa tissues in an independent sample cohort. We further demonstrate temporal stability of proteome patterns from FFPE samples that were stored between 1 and 15 years in a biobank and show a high degree of the proteome pattern similarity between two types of histological regions in small FFPE samples, that is, punched tissue biopsies and thin tissue sections of micrometer thickness, despite the existence of a certain degree of biological variations. Applying the method to two independent DLBCL cohorts, we identified myeloperoxidase, a peroxidase enzyme, as a novel prognostic marker. In summary, this study presents a robust proteomic method to analyze bulk and biopsy FFPE tissues and reports the first systematic comparison of proteome maps generated from FFPE and FF samples. Our data demonstrate the practicality and superiority of FFPE over FF samples for proteome in biomarker discovery. Promising biomarker candidates for PCa and DLBCL have been discovered.
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Affiliation(s)
- Yi Zhu
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China.,Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Switzerland
| | - Tobias Weiss
- Department of Neurology and Brain Tumor Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Qiushi Zhang
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Rui Sun
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Bo Wang
- Department of Pathology, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiao Yi
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Zhicheng Wu
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Huanhuan Gao
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Xue Cai
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Guan Ruan
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Tiansheng Zhu
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Chao Xu
- College of Mathematics and Informatics, Digital Fujian Institute of Big Data Security Technology, Fujian Normal University, Fuzhou, China
| | - Sai Lou
- Phase I Clinical Research Center, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Xiaoyan Yu
- Department of Pathology, The Second Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
| | - Ludovic Gillet
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Switzerland
| | - Peter Blattmann
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Switzerland
| | - Karim Saba
- Department of Urology, University Hospital Zurich, University of Zurich, Switzerland
| | | | - Michael B Schmid
- Department of Urology, University Hospital Zurich, University of Zurich, Switzerland
| | - Dorothea Rutishauser
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Jelena Ljubicic
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Ailsa Christiansen
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Christine Fritz
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Niels J Rupp
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Cedric Poyet
- Department of Urology, University Hospital Zurich, University of Zurich, Switzerland
| | - Elisabeth Rushing
- Department of Neuropathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Michael Weller
- Department of Neurology and Brain Tumor Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Patrick Roth
- Department of Neurology and Brain Tumor Center, University Hospital Zurich, University of Zurich, Switzerland
| | - Eugenia Haralambieva
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland
| | - Silvia Hofer
- Division of Medical Oncology, Lucerne Cantonal Hospital and Cancer Center, Switzerland
| | | | - Wolfram Jochum
- Institute of Pathology, Cantonal Hospital St. Gallen, Switzerland
| | - Xiaofei Gao
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Xiaodong Teng
- Department of Pathology, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
| | - Lirong Chen
- Department of Pathology, The Second Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
| | - Qing Zhong
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland.,Children's Medical Research Institute, University of Sydney, Australia
| | - Peter J Wild
- Department of Pathology and Molecular Pathology, University Hospital Zurich, University of Zurich, Switzerland.,Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Switzerland.,Faculty of Science, University of Zurich, Switzerland
| | - Tiannan Guo
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China.,Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Switzerland
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19
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Obacz J, Sommerova L, Sicari D, Durech M, Avril T, Iuliano F, Pastorekova S, Hrstka R, Chevet E, Delom F, Fessart D. Extracellular AGR3 regulates breast cancer cells migration via Src signaling. Oncol Lett 2019; 18:4449-4456. [PMID: 31611954 PMCID: PMC6781763 DOI: 10.3892/ol.2019.10849] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 06/25/2019] [Indexed: 12/18/2022] Open
Abstract
Human anterior gradient proteins AGR2 and AGR3 are overexpressed in a variety of adenocarcinomas and are often secreted in cancer patients' specimens, which suggests a role for AGR proteins in intra and extracellular compartments. Although these proteins exhibit high sequence homology, AGR2 is predominantly described as a pro-oncogene and a potential prognostic biomarker. However, little is known about the function of AGR3. Therefore, the aim of the present study was to investigate the role of AGR3 in breast cancer. The results demonstrated that breast cancer cells secrete AGR3. Furthermore, it was revealed that extracellular AGR3 (eAGR3) regulates tumor cell adhesion and migration. The current study indicated that the pharmacological and genetic perturbation of Src kinase signaling, through treatment with Dasatinib (protein kinase inhibitor) or investigating cells that express a dominant-negative form of Src, significantly abrogated eAGR3-mediated breast cancer cell migration. Therefore, the results indicated that eAGR3 may control tumor cell migration via activation of Src kinases. The results of the present study indicated that eAGR3 may serve as a microenvironmental signaling molecule in tumor-associated processes.
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Affiliation(s)
- Joanna Obacz
- INSERM U1242, 'Chemistry, Oncogenesis Stress Signaling', University of Rennes Campus 1, F-35000 Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, F-35000 Rennes, France.,Masaryk Memorial Cancer Institute, RECAMO, 656 53 Brno, Czech Republic.,Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovak Republic
| | - Lucia Sommerova
- Masaryk Memorial Cancer Institute, RECAMO, 656 53 Brno, Czech Republic
| | - Daria Sicari
- INSERM U1242, 'Chemistry, Oncogenesis Stress Signaling', University of Rennes Campus 1, F-35000 Rennes, France
| | - Michal Durech
- Masaryk Memorial Cancer Institute, RECAMO, 656 53 Brno, Czech Republic
| | - Tony Avril
- INSERM U1242, 'Chemistry, Oncogenesis Stress Signaling', University of Rennes Campus 1, F-35000 Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, F-35000 Rennes, France
| | - Filippo Iuliano
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovak Republic
| | - Silvia Pastorekova
- Masaryk Memorial Cancer Institute, RECAMO, 656 53 Brno, Czech Republic.,Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovak Republic
| | - Roman Hrstka
- Masaryk Memorial Cancer Institute, RECAMO, 656 53 Brno, Czech Republic
| | - Eric Chevet
- INSERM U1242, 'Chemistry, Oncogenesis Stress Signaling', University of Rennes Campus 1, F-35000 Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, F-35000 Rennes, France
| | - Frederic Delom
- University of Bordeaux, ACTION, F-33000 Bordeaux, France.,INSERM U1218, F-33000 Bordeaux, France.,Bergonie Cancer Institute, F-33000 Bordeaux, France
| | - Delphine Fessart
- INSERM U1242, 'Chemistry, Oncogenesis Stress Signaling', University of Rennes Campus 1, F-35000 Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, F-35000 Rennes, France.,University of Bordeaux, ACTION, F-33000 Bordeaux, France.,INSERM U1218, F-33000 Bordeaux, France
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20
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Dong L, Zieren RC, Wang Y, de Reijke TM, Xue W, Pienta KJ. Recent advances in extracellular vesicle research for urological cancers: From technology to application. Biochim Biophys Acta Rev Cancer 2019; 1871:342-360. [DOI: 10.1016/j.bbcan.2019.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 01/28/2019] [Accepted: 01/28/2019] [Indexed: 02/09/2023]
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21
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Rodríguez-Blanco G, Zeneyedpour L, Duijvesz D, Hoogland AM, Verhoef EI, Kweldam CF, Burgers PC, Smitt PS, Bangma CH, Jenster G, van Leenders GJLH, Dekker LJM, Luider TM. Tissue proteomics outlines AGR2 AND LOX5 as markers for biochemical recurrence of prostate cancer. Oncotarget 2018; 9:36444-36456. [PMID: 30559929 PMCID: PMC6284859 DOI: 10.18632/oncotarget.26342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 10/21/2018] [Indexed: 12/22/2022] Open
Abstract
Although many patients are cured from prostate cancer (PCa) by surgery only, there are still patients who will experience rising prostate-specific antigen (PSA) levels after surgery, a condition known as biochemical recurrence (BCR). Novel protein prognostic markers in PCa tissue might enable finding better treatment for those patients experiencing BCR with a high chance of metastasis. In this study, we aimed to identify altered proteins in prostate cancer tissue, and to evaluate their potential role as prognostic markers. We used two proteomics strategies to analyse 34 prostate tumours (PCa) and 33 normal adjacent prostate (NAP) tissues. An independent cohort of 481 samples was used to evaluate the expression of three proteins: AGR2, FASN and LOX5 as prognostic markers of the disease. Tissue microarray immunohistochemical staining indicated that a low percentage of positive tumour cells for AGR2 (HR (95% CI) = 0.61 (0.43-0.93)), and a low percentage of positive tumour cells for LOX5 expression (HR (95% CI) = 2.53 (1.23-5.22)) are predictors of BCR after RP. In contrast, FASN expression had no prognostic value for PCa.
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Affiliation(s)
| | - Lona Zeneyedpour
- Department of Neurology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Diederick Duijvesz
- Department of Urology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - A Marije Hoogland
- Department of Pathology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Esther I Verhoef
- Department of Pathology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | | | - Peter C Burgers
- Department of Neurology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | | | - Chris H Bangma
- Department of Urology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Guido Jenster
- Department of Urology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | | | - Lennard J M Dekker
- Department of Neurology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Theo M Luider
- Department of Neurology, Erasmus Medical Centre, Rotterdam, The Netherlands
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22
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Liu QG, Li YJ, Yao L. Knockdown of AGR2 induces cell apoptosis and reduces chemotherapy resistance of pancreatic cancer cells with the involvement of ERK/AKT axis. Pancreatology 2018; 18:678-688. [PMID: 30055941 DOI: 10.1016/j.pan.2018.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 07/04/2018] [Accepted: 07/06/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pancreatic cancer (PC), an aggressive human malignancy, presents with a striking resistance to chemotherapy. Interesting, AGR2 has been found to be upregulated in various cancers and has been found to promote the dissemination of PC cells. Thereby, a series of in-vitro experiments were performed to investigate the relationship between AGR2 and the ERK/AKT axis, and to explore whether it affects PC cells. METHODS Positive expression of AGR2 protein in the PC and paracancerous tissues collected from 138 patients with PC was detected using immunohistochemistry. After treatment with FGF2 (an ERK/AKT axis agonist), siRNA against AGR2 or their combination respectively, cell viability, chemotherapy resistance, radiotherapy resistance, migration, invasion and apoptosis in PC cells were detected using CCK8 assay, MTT assay, clone formation assay, wound healing assay, Transwell assay and flow cytometry, respectively. The expressions of AGR2 and ERK/AKT axis-related genes and proteins in tissues and cells were detected using reverse transcription quantitative polymerase chain reaction and Western blot assay. RESULTS PC tissues exhibited highly-expressed AGR2 and abnormally activated ERK/AKT axis. FGF2 promoted the expression of AGR2, ERK/AKT axis activation, cell viability, chemotherapy resistance, migration and invasion, but decreased cell apoptosis in PC cells. However, knockdown of AGR2 resulted in inhibition of the ERK/AKT axis, reduced PC cell viability, chemotherapy resistance, migration and invasion but increased cell apoptosis in PC cells. CONCLUSION The findings reveal that AGR2 silencing could promote cell apoptosis and inhibit cell migration, invasion and chemotherapy resistance of PC cell with the involvement of the ERK/AKT axis.
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Affiliation(s)
- Qing-Guo Liu
- Department of Gastroenterological Surgery, Tangshan Gongren Hospital, Tangshan, 063000, PR China
| | - Yan-Ju Li
- Department of Gastroenterological Surgery, Tangshan Gongren Hospital, Tangshan, 063000, PR China.
| | - Lan Yao
- Tangshan Central Blood Station, Tangshan, 063000, PR China
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23
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Sampson N, Brunner E, Weber A, Puhr M, Schäfer G, Szyndralewiez C, Klocker H. Inhibition of Nox4-dependent ROS signaling attenuates prostate fibroblast activation and abrogates stromal-mediated protumorigenic interactions. Int J Cancer 2018; 143:383-395. [PMID: 29441570 PMCID: PMC6067067 DOI: 10.1002/ijc.31316] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/18/2017] [Accepted: 01/17/2018] [Indexed: 12/31/2022]
Abstract
Carcinoma-associated fibroblasts (CAFs) play a key onco-supportive role during prostate cancer (PCa) development and progression. We previously reported that the reactive oxygen species (ROS)-producing enzyme NADPH oxidase 4 (Nox4) is essential for TGFβ1-mediated activation of primary prostate human fibroblasts to a CAF-like phenotype. This study aimed to further investigate the functional relevance of prostatic Nox4 and determine whether pharmacological inhibition of stromal Nox4 abrogates paracrine-mediated PCa-relevant processes. RNA in situ hybridization revealed significantly elevated Nox4 mRNA levels predominantly in the peri-tumoral stroma of clinical PCa with intense stromal Nox4 staining adjacent to tumor foci expressing abundant TGFβ protein levels. At pharmacologically relevant concentrations, the Nox1/Nox4 inhibitor GKT137831 attenuated ROS production, CAF-associated marker expression and migration of TGFβ1-activated but not nonactivated primary human prostate fibroblasts. Similar effects were obtained upon shRNA-mediated silencing of Nox4 but not Nox1 indicating that GKT137831 primarily abrogates TGFβ1-driven fibroblast activation via Nox4 inhibition. Moreover, inhibiting stromal Nox4 abrogated the enhanced proliferation and migration of PCa cell lines induced by TGFβ1-activated prostate fibroblast conditioned media. These effects were not restricted to recombinant TGFβ1 as conditioned media from PCa cell lines endogenously secreting high TGFβ1 levels induced fibroblast activation in a stromal Nox4- and TGFβ receptor-dependent manner. Importantly, GKT137831 also attenuated PCa cell-driven fibroblast activation. Collectively, these findings suggest the TGFβ-Nox4 signaling axis is a key interface to dysregulated reciprocal stromal-epithelial interactions in PCa pathophysiology and provide a strong rationale for further investigating the applicability of Nox4 inhibition as a stromal-targeted approach to complement current PCa treatment modalities.
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Affiliation(s)
- Natalie Sampson
- Department of Urology, Division of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
| | - Elena Brunner
- Department of Urology, Division of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
| | - Anja Weber
- Department of Urology, Division of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
| | - Martin Puhr
- Department of Urology, Division of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
| | - Georg Schäfer
- Division of PathologyMedical University of InnsbruckInnsbruckAustria
| | | | - Helmut Klocker
- Department of Urology, Division of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
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24
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Garri C, Howell S, Tiemann K, Tiffany A, Jalali-Yazdi F, Alba MM, Katz JE, Takahashi TT, Landgraf R, Gross ME, Roberts RW, Kani K. Identification, characterization and application of a new peptide against anterior gradient homolog 2 (AGR2). Oncotarget 2018; 9:27363-27379. [PMID: 29937991 PMCID: PMC6007958 DOI: 10.18632/oncotarget.25221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 04/02/2018] [Indexed: 01/15/2023] Open
Abstract
The cancer-associated protein Anterior Gradient 2 (AGR2) has been described, predominantly in adenocarcinomas. Increased levels of extracellular AGR2 (eAGR2) have been correlated with poor prognosis in cancer patients, making it a potential biomarker. Additionally, neutralizing AGR2 antibodies showed preclinical effectiveness in murine cancer models suggesting eAGR2 may be a therapeutic target. We set out to identify a peptide by mRNA display that would serve as a theranostic tool targeting AGR2. This method enables the selection of peptides from a complex (>1011) library and incorporates a protease incubation step that filters the selection for serum stable peptides. We performed six successive rounds of enrichment using a 10-amino acid mRNA display library and identified several AGR2 binding peptides. One of these peptides (H10), demonstrated high affinity binding to AGR2 with a binding constant (KD) of 6.4 nM. We developed an AGR2 ELISA with the H10 peptide as the capture reagent. Our H10-based ELISA detected eAGR2 from cancer cell spent media with a detection limit of (20-50 ng/ml). Furthermore, we investigated the therapeutic utility of H10 and discovered that it inhibited cell viability at IC50 (9-12 μmoles/L) in cancer cell lines. We also determined that 10 μg/ml of H10 was sufficient to inhibit cancer cell migration in breast and prostate cancer cell lines. A control peptide did not show any appreciable activity in these cells. The H10 peptide showed promise as both a novel diagnostic and a potential therapeutic peptide.
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Affiliation(s)
- Carolina Garri
- Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Shannon Howell
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Katrin Tiemann
- Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Aleczandria Tiffany
- Mork Family Department of Chemical Engineering and Material Science, University of Southern California, Los Angeles, CA, USA
| | - Farzad Jalali-Yazdi
- Mork Family Department of Chemical Engineering and Material Science, University of Southern California, Los Angeles, CA, USA
| | - Mario M Alba
- Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jonathan E Katz
- Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Terry T Takahashi
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Ralf Landgraf
- University of Miami, Miller School of Medicine, Department of Biochemistry and Molecular Biology, Miami, FL, USA
| | - Mitchell E Gross
- Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA.,USC Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Richard W Roberts
- USC Norris Comprehensive Cancer Center, Los Angeles, CA, USA.,Department of Chemistry, University of Southern California, Los Angeles, CA, USA.,Mork Family Department of Chemical Engineering and Material Science, University of Southern California, Los Angeles, CA, USA
| | - Kian Kani
- Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA.,USC Norris Comprehensive Cancer Center, Los Angeles, CA, USA
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25
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Garczyk S, Klotz N, Szczepanski S, Denecke B, Antonopoulos W, von Stillfried S, Knüchel R, Rose M, Dahl E. Oncogenic features of neuromedin U in breast cancer are associated with NMUR2 expression involving crosstalk with members of the WNT signaling pathway. Oncotarget 2018; 8:36246-36265. [PMID: 28423716 PMCID: PMC5482652 DOI: 10.18632/oncotarget.16121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/07/2017] [Indexed: 11/25/2022] Open
Abstract
Neuromedin U (NMU) has been shown driving the progression of various tumor entities, including breast cancer. However, the expression pattern of NMU and its receptors in breast cancer tissues as well as systematic insight into mechanisms and downstream targets of the NMU-driven signaling pathways are still elusive. Here, NMU expression was found up-regulated in all breast cancer subtypes when compared to healthy breast tissue. Using an in silico dataset comprising 1,195 samples, high NMU expression was identified as an indicator of poor outcome in breast tumors showing strong NMUR2 expression. Next, the biological impact of NMU on breast cancer cells in relation to NMUR2 expression was analyzed. Ectopic NMU expression reduced colony growth while promoting a motile phenotype in NMUR2-positive SKBR3 but not NMUR2-negative Hs578T cells. To uncover signaling pathways and key molecules affected by NMU in SKBR3 cells, Affymetrix microarray analysis was applied. Forced NMU expression affected molecules involved in WNT receptor signaling among others. As such we demonstrated enhanced activation of the WNT/planar cell polarity (PCP) effector RAC1 and down-regulation of canonical WNT targets such as MYC. In summary, NMU might contribute to progression of NMUR2-positive breast cancer representing a potential druggable target for future personalized strategies.
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Affiliation(s)
- Stefan Garczyk
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Natalie Klotz
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Sabrina Szczepanski
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Bernd Denecke
- IZKF Aachen, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Wiebke Antonopoulos
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Saskia von Stillfried
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Ruth Knüchel
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Michael Rose
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
| | - Edgar Dahl
- Molecular Oncology Group, Institute of Pathology, Medical Faculty of the RWTH Aachen University, D-52074 Aachen, Germany
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26
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Li Y, Wang W, Liu Z, Jiang Y, Lu J, Xie H, Tang F. AGR2 diagnostic value in nasopharyngeal carcinoma prognosis. Clin Chim Acta 2017; 484:323-327. [PMID: 29269202 DOI: 10.1016/j.cca.2017.12.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/13/2017] [Accepted: 12/17/2017] [Indexed: 12/23/2022]
Abstract
BACKGROUND Anterior Gradient (AGR) 2 concentration increases in the serum of tumor patients, and their diagnostic and prognostic significances were evaluated in some tumors. The previous works showed that AGR2 high express in nasopharyngeal carcinoma (NPC) biopsy tissues. However, whether AGR2 serves as a diagnostic and prognostic marker for NPC remains unclear. METHODS 42 healthy volunteers, 34 breast cancer patients and 124 NPC patients were enrolled into this study, and the serum samples were collected from these healthy volunteers, breast cancer patients and NPC patients. Concomitantly, 79 frozen nasopharyngeal specimens consisted of 65 NPC tissues and 14 normal nasopharyngeal tissues were enrolled in the observation. The enzyme linked immunosorbent assay (ELISA) was used to estimate AGR2 concentration in the serum samples, and AGR2 mRNA expressions in the frozen tissue samples were detected by real time RT-PCR. RESULTS The real time RT-PCR results showed that AGR2 mRNA level was increased in NPC tissues compared with the normal nasopharyngeal tissues (p<0.05). The ELISA data showed that AGR2 concentration in NPC serum was significantly higher in NPC patient serums than that in the health population (p<0.05). And, AGR2 expression showed a correlation with tumor node metastasis (TNM) grade (p<0.05) and Recurrence (p<0.05). Moreover, the cumulative survival rate of patients with high concentration of AGR2 was significantly lower than that of patients with low concentration of AGR2 (p<0.05), and the cumulative hazard rate of patients with high concentration of AGR2 was significantly higher than that with low concentration of AGR2 (p<0.05). CONCLUSION Serum AGR2 can be used as a serum marker for clinical prognosis of nasopharyngeal carcinoma. However, serum AGR2 levels could not provide advantages in clinical practice for the differential diagnosis of cancer.
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Affiliation(s)
- Yuejin Li
- Clinical Laboratory of Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China; Clinical Laboratory of Zhuhai People's Hospital, Zhuhai Hospital of Jinan University, Zhuhai, China
| | - Weiwei Wang
- Clinical Laboratory of Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China; Clinical Laboratory of Zhuhai People's Hospital, Zhuhai Hospital of Jinan University, Zhuhai, China
| | - Zheliang Liu
- Clinical Laboratory of Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Yuan Jiang
- Clinical Laboratory of Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Jinping Lu
- Clinical Laboratory of Zhuhai People's Hospital, Zhuhai Hospital of Jinan University, Zhuhai, China
| | - Haitao Xie
- Clinical Laboratory, First Affiliated Hospital of Nanhua University, Hengyang, China
| | - Faqing Tang
- Clinical Laboratory of Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China; Clinical Laboratory of Zhuhai People's Hospital, Zhuhai Hospital of Jinan University, Zhuhai, China.
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27
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The prognostic value of AGR2 expression in solid tumours: a systematic review and meta-analysis. Sci Rep 2017; 7:15500. [PMID: 29138453 PMCID: PMC5686151 DOI: 10.1038/s41598-017-15757-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 11/01/2017] [Indexed: 12/26/2022] Open
Abstract
The prognostic value of anterior gradient-2 (AGR2) in tumours remains inconclusive. Here, we systematically reviewed the literature evidence and assessed the association between AGR2 expression and prognosis in solid tumours. The primary outcomes were overall survival (OS), disease-specific survival (DSS), and disease-free survival (DFS)/recurrence-free survival (RFS)/progression-free survival (PFS). All analyses were performed by STATA 12.0, with the hazard ratio (HR) or odds ratios (OR), and 95% confidence interval (CI) as the effect size estimate. A total of 20 studies containing 3285 cases were included. Pooled analyses revealed that AGR2 overexpression had an unfavourable impact on OS (HR 1.93, 95% CI 1.32-2.81) and time to tumour progression (TTP) (DFS/RFS/PFS) (HR 1.60 95% CI 1.06-2.40) in solid tumour patients. Subgroup analyses indicated that AGR2 overexpression in breast cancer patients was significantly associated with poor OS (HR 3.02, 95% CI 1.03-8.81) and TTP (HR 1.93, 95% CI 1.17-3.20). Excluding breast cancer, AGR2 overexpression was also found to have a significant correlation with poor OS in the remaining solid tumour patients (HR 1.51, 95% CI 1.04-2.19). Overall, AGR2 might be a potential biomarker to predict prognosis in solid tumour patients.
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28
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Shi T, Quek SI, Gao Y, Nicora CD, Nie S, Fillmore TL, Liu T, Rodland KD, Smith RD, Leach RJ, Thompson IM, Vitello EA, Ellis WJ, Liu AY, Qian WJ. Multiplexed targeted mass spectrometry assays for prostate cancer-associated urinary proteins. Oncotarget 2017; 8:101887-101898. [PMID: 29254211 PMCID: PMC5731921 DOI: 10.18632/oncotarget.21710] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 08/04/2017] [Indexed: 02/07/2023] Open
Abstract
Biomarkers for effective early diagnosis and prognosis of prostate cancer are still lacking. Multiplexed assays for cancer-associated proteins could be useful for identifying biomarkers for cancer detection and stratification. Herein, we report the development of sensitive targeted mass spectrometry assays for simultaneous quantification of 10 prostate cancer-associated proteins in urine. The diagnostic utility of these markers was evaluated with an initial cohort of 20 clinical urine samples. Individual marker concentration was normalized against the measured urinary prostate-specific antigen level as a reference of prostate-specific secretion. The areas under the receiver-operating characteristic curves for the 10 proteins ranged from 0.75 for CXL14 to 0.87 for CEAM5. Furthermore, MMP9 level was found to be significantly higher in patients with high Gleason scores, suggesting a potential of MMP9 as a marker for risk level assessment. Taken together, our work illustrated the feasibility of accurate multiplexed measurements of low-abundance cancer-associated proteins in urine and provided a viable path forward for preclinical verification of candidate biomarkers for prostate cancer.
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Affiliation(s)
- Tujin Shi
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Sue-Ing Quek
- Department of Urology, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA.,Present address: Singapore Polytechnic, Center for Biomedical and Life Sciences T11A-412 (level 4), Singapore
| | - Yuqian Gao
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Carrie D Nicora
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Song Nie
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Thomas L Fillmore
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Tao Liu
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Karin D Rodland
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Richard D Smith
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Robin J Leach
- Department of Urology and the Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Ian M Thompson
- Department of Urology and the Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Elizabeth A Vitello
- Department of Urology, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - William J Ellis
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Alvin Y Liu
- Department of Urology, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - Wei-Jun Qian
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
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29
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Chen Z, Gerke T, Bird V, Prosperi M. Trends in Gene Expression Profiling for Prostate Cancer Risk Assessment: A Systematic Review. Biomed Hub 2017; 2:1-15. [PMID: 31988908 PMCID: PMC6945900 DOI: 10.1159/000472146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 03/07/2017] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES The aim of the study is to review biotechnology advances in gene expression profiling on prostate cancer (PCa), focusing on experimental platform development and gene discovery, in relation to different study designs and outcomes in order to understand how they can be exploited to improve PCa diagnosis and clinical management. METHODS We conducted a systematic literature review on gene expression profiling studies through PubMed/MEDLINE and Web of Science between 2000 and 2016. Tissue biopsy and clinical gene profiling studies with different outcomes (e.g., recurrence, survival) were included. RESULTS Over 3,000 papers were screened and 137 full-text articles were selected. In terms of technology used, microarray is still the most popular technique, increasing from 50 to 70% between 2010 and 2015, but there has been a rise in the number of studies using RNA sequencing (13% in 2015). Sample sizes have increased, as well as the number of genes that can be screened all at once, but we have also observed more focused targeting in more recent studies. Qualitative analysis on the specific genes found associated with PCa risk or clinical outcomes revealed a large variety of gene candidates, with a few consistent cross-studies. CONCLUSIONS The last 15 years of research in gene expression in PCa have brought a large volume of data and information that has been decoded only in part, but advancements in high-throughput sequencing technology are increasing the amount of data that can be generated. The variety of findings warrants the execution of both validation studies and meta-analyses. Genetic biomarkers have tremendous potential for early diagnosis of PCa and, if coupled with other diagnostics (e.g., imaging), can effectively be used to concretize less-invasive, personalized prediction of PCa risk and progression.
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Affiliation(s)
- Zhaoyi Chen
- Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, University of Florida, Gainesville, FL, USA
| | | | - Victoria Bird
- Department of Urology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Mattia Prosperi
- Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, University of Florida, Gainesville, FL, USA
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30
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Akizhanova M, Iskakova EE, Kim V, Wang X, Kogay R, Turebayeva A, Sun Q, Zheng T, Wu S, Miao L, Xie Y. PSA and Prostate Health Index based prostate cancer screening in a hereditary migration complicated population: implications in precision diagnosis. J Cancer 2017; 8:1223-1228. [PMID: 28607597 PMCID: PMC5463437 DOI: 10.7150/jca.18012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 12/23/2016] [Indexed: 12/03/2022] Open
Abstract
Precision diagnosis requires specific markers for differential ethnic populations. Prostate-Specific Antigen (PSA) level (threshold of 4ng/ml) has been widely used to screen prostate cancer and as reference of pro-biopsy but false diagnosis frequently occurs. Prostate health Index (PHI) is a new diagnosis marker which combines PSA, free PSA and p2PSA4. Overall the PCa screening database is lacking in Kazakhstani patients. We analyzed the PSA levels and Gleason scores of 222 biopsies collected in 2015 in Almaty area, Kazakhstan approved by institutional ethics board. We found using PSA of 4ng/ml as threshold, only 25.68% of patients have cancer with Gleason score ranged 6-8 and 65.77% of patients have no character of cancer. Moreover, there is no significant correlation between PSA and cancerous (P=0.266) or Gleason grade (P=0.3046) based on pathological biopsy. In addition, PHI is not correlated to prostate cancer (P=0.4301). Our data suggest that false-positive rate is much higher than the correct-positive diagnosis when using PSA as the first screening. Thus in this cohort study, most patients can not get benefit from the PSA screening for precision PCa diagnosis. As Kazakhstani family trees are unique and complicated because of history and migration, the high rate of over diagnosis might be due to the hyperexpression of PSA via heterosis in Eurasian men. Therefore we should be cautious when using pro-biopsy in precision diagnosis for Eurasian prostate cancer patients.
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Affiliation(s)
- Mariyam Akizhanova
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Elzira E Iskakova
- Module of Pathological Anatomy, Kazakh National Medical University, Almaty, 050000, Republic of Kazakhstan
| | - Valdemir Kim
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Xiao Wang
- Shandong Analysis and Test Center, Shandong Academy of Sciences, 19 keyuan Street, Jinan, 250014, P.R. China
| | - Roman Kogay
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Aiym Turebayeva
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Qinglei Sun
- Shandong Analysis and Test Center, Shandong Academy of Sciences, 19 keyuan Street, Jinan, 250014, P.R. China
| | - Ting Zheng
- Shandong Analysis and Test Center, Shandong Academy of Sciences, 19 keyuan Street, Jinan, 250014, P.R. China
| | - Shenghui Wu
- Department of Epidemiology & Biostatistics, University of Texas Health at San Antonio Laredo Campus, Laredo, TX 78041, USA
| | - Lixia Miao
- College of Basic Medicine, Wuhan University, Wuhan, 430071, P.R. China
| | - Yingqiu Xie
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
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Ding Y, Wu H, Warden C, Steele L, Liu X, van Iterson M, Wu X, Nelson R, Liu Z, Yuan YC, Neuhausen SL. Gene Expression Differences in Prostate Cancers between Young and Old Men. PLoS Genet 2016; 12:e1006477. [PMID: 28027300 PMCID: PMC5189936 DOI: 10.1371/journal.pgen.1006477] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 11/14/2016] [Indexed: 12/22/2022] Open
Abstract
Prostate cancer incidence is increasing in younger men. We investigated whether men diagnosed with Gleason 7 (3+4) T2 prostate cancer at younger ages (≤ 45 years, young cohort) had different mRNA and miRNA expression profiles than men diagnosed at older ages (71–74 years, older cohort). We identified differentially expressed genes (DEGs) related to tumor-normal differences between the cohorts. Subsequent pathway analysis of DEGs revealed that the young cohort had significantly more pronounced inflammatory and immune responses to tumor development compared to the older cohort. Further supporting a role of inflammation-induced immune-suppression in the development of early-onset prostate cancer, we observed significant up-regulation of CTLA4 and IDO1/TDO2 pathways in tumors of the young cohort. Moreover, over-expression of CTLA4 and IDO1 was significantly associated with biochemical recurrence. Our results provide clues on the mechanisms of tumor development and point to potential biomarkers for early detection and treatment for prostate cancer in young men. The incidence of prostate cancer is increasing in young men, and young men are more likely to develop more aggressive prostate cancers than older men. These findings suggest biological differences between prostate cancers that develop in young men and in older men; yet little data and few studies on men diagnosed under age 50 years exist. In this study, we investigated whether men diagnosed with prostate cancer at young ages (≤ age 45 years) had different gene expression profiles than men diagnosed at older ages (71–74 years). We found that inflammatory and immune-related pathways were up-regulated in the young group as compared to the older group, suggesting fundamental differences in tumor development. Moreover, 21% of the young group, compared to 8% of the older group, had biochemical recurrence of prostate cancer–a surprising result given that both groups were diagnosed in early stages of disease (all T2, Gleason 7 (3+4). The recurrence in the young group was associated with over-expression of two genes involved in immune regulation. After validation in a larger dataset, these may provide clues for potential biomarkers to test for monitoring which young patients are likely to progress.
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Affiliation(s)
- Yuanchun Ding
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Huiqing Wu
- Department of Pathology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Charles Warden
- Department of Cellular and Molecular Biology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Linda Steele
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Xueli Liu
- Department of Cellular and Molecular Biology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - M. van Iterson
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Xiwei Wu
- Department of Cellular and Molecular Biology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Rebecca Nelson
- Department of Pathology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Zheng Liu
- Department of Cellular and Molecular Biology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Yate-Ching Yuan
- Department of Cellular and Molecular Biology, Beckman Research Institute of City of Hope, Duarte, California, United States of America
| | - Susan L. Neuhausen
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, California, United States of America
- * E-mail:
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CAFÉ-Map: Context Aware Feature Mapping for mining high dimensional biomedical data. Comput Biol Med 2016; 79:68-79. [PMID: 27764717 DOI: 10.1016/j.compbiomed.2016.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 10/05/2016] [Accepted: 10/10/2016] [Indexed: 12/18/2022]
Abstract
Feature selection and ranking is of great importance in the analysis of biomedical data. In addition to reducing the number of features used in classification or other machine learning tasks, it allows us to extract meaningful biological and medical information from a machine learning model. Most existing approaches in this domain do not directly model the fact that the relative importance of features can be different in different regions of the feature space. In this work, we present a context aware feature ranking algorithm called CAFÉ-Map. CAFÉ-Map is a locally linear feature ranking framework that allows recognition of important features in any given region of the feature space or for any individual example. This allows for simultaneous classification and feature ranking in an interpretable manner. We have benchmarked CAFÉ-Map on a number of toy and real world biomedical data sets. Our comparative study with a number of published methods shows that CAFÉ-Map achieves better accuracies on these data sets. The top ranking features obtained through CAFÉ-Map in a gene profiling study correlate very well with the importance of different genes reported in the literature. Furthermore, CAFÉ-Map provides a more in-depth analysis of feature ranking at the level of individual examples. AVAILABILITY CAFÉ-Map Python code is available at: http://faculty.pieas.edu.pk/fayyaz/software.html#cafemap . The CAFÉ-Map package supports parallelization and sparse data and provides example scripts for classification. This code can be used to reconstruct the results given in this paper.
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Thomas BC, Kay JD, Menon S, Vowler SL, Dawson SN, Bucklow LJ, Luxton HJ, Johnston T, Massie CE, Pugh M, Warren AY, Barker P, Burling K, Lynch AG, George A, Burge J, Corcoran M, Stearn S, Lamb AD, Sharma NL, Shaw GL, Neal DE, Whitaker HC. Whole blood mRNA in prostate cancer reveals a four-gene androgen regulated panel. Endocr Relat Cancer 2016; 23:797-812. [PMID: 27578825 DOI: 10.1530/erc-16-0287] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 08/10/2016] [Indexed: 01/05/2023]
Abstract
Due to increased sensitivity, the expression of circulating nucleotides is rapidly gaining popularity in cancer diagnosis. Whole blood mRNA has been used in studies on a number of cancers, most notably two separate studies that used whole blood mRNA to define non-overlapping signatures of prostate cancer that has become castration independent. Prostate cancer is known to rely on androgens for initial growth, and there is increasing evidence on the importance of the androgen axis in advanced disease. Using whole blood mRNA samples from patients with prostate cancer, we have identified the four-gene panel of FAM129A, MME, KRT7 and SOD2 in circulating mRNA that are differentially expressed in a discovery cohort of metastatic samples. Validation of these genes at the mRNA and protein level was undertaken in additional cohorts defined by risk of relapse following surgery and hormone status. All the four genes were downregulated at the mRNA level in the circulation and in primary tissue, but this was not always reflected in tissue protein expression. MME demonstrated significant differences in the hormone cohorts, whereas FAM129A is downregulated at the mRNA level but is raised at the protein level in tumours. Using published ChIP-seq data, we have demonstrated that this may be due to AR binding at the FAM129A and MME loci in multiple cell lines. These data suggest that whole blood mRNA of androgen-regulated genes has the potential to be used for diagnosis and monitoring of prostate cancer.
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Affiliation(s)
- Benjamin C Thomas
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Biomarker InitiativeCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Jonathan D Kay
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Biomarker InitiativeCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Molecular Diagnostics and Therapeutics GroupUniversity College London, London, UK
| | - Suraj Menon
- Bioinformatics and Statistics Core FacilityCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Astra Zeneca2 Riverside, Granta Park, Cambridge, UK
| | - Sarah L Vowler
- Bioinformatics and Statistics Core FacilityCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Astra Zeneca2 Riverside, Granta Park, Cambridge, UK
| | - Sarah N Dawson
- Bioinformatics and Statistics Core FacilityCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Laura J Bucklow
- Biomarker InitiativeCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Hayley J Luxton
- Biomarker InitiativeCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Molecular Diagnostics and Therapeutics GroupUniversity College London, London, UK
| | - Thomas Johnston
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Biomarker InitiativeCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Charlie E Massie
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Molecular and Computational Diagnostics GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Michelle Pugh
- Genomics Core FacilityCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Anne Y Warren
- Department of HistopathologyCambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Peter Barker
- National Institute for Health Research Cambridge Biomedical Research Centre Core Biochemistry Assay LaboratoryCambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Keith Burling
- National Institute for Health Research Cambridge Biomedical Research Centre Core Biochemistry Assay LaboratoryCambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Andy G Lynch
- Computational Biology GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Anne George
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Johanna Burge
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Marie Corcoran
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Sara Stearn
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Alastair D Lamb
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Naomi L Sharma
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK
| | - Greg L Shaw
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK University College Hospital at Westmoreland StreetLondon, UK
| | - David E Neal
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Nuffield Department of Surgical SciencesJohn Radcliffe Hospital, Headington, Oxford, UK
| | - Hayley C Whitaker
- Uro-Oncology Research GroupCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Biomarker InitiativeCancer Research UK Cambridge Institute, Robinson Way, Cambridge, UK Molecular Diagnostics and Therapeutics GroupUniversity College London, London, UK
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Guo H, Chen H, Zhu Q, Yu X, Rong R, Merugu SB, Mangukiya HB, Li D. A humanized monoclonal antibody targeting secreted anterior gradient 2 effectively inhibits the xenograft tumor growth. Biochem Biophys Res Commun 2016; 475:57-63. [DOI: 10.1016/j.bbrc.2016.05.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 05/02/2016] [Indexed: 12/13/2022]
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Bu H, Narisu N, Schlick B, Rainer J, Manke T, Schäfer G, Pasqualini L, Chines P, Schweiger MR, Fuchsberger C, Klocker H. Putative Prostate Cancer Risk SNP in an Androgen Receptor-Binding Site of the Melanophilin Gene Illustrates Enrichment of Risk SNPs in Androgen Receptor Target Sites. Hum Mutat 2016; 37:52-64. [PMID: 26411452 PMCID: PMC4715509 DOI: 10.1002/humu.22909] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 09/16/2015] [Indexed: 01/17/2023]
Abstract
Genome-wide association studies have identified genomic loci, whose single-nucleotide polymorphisms (SNPs) predispose to prostate cancer (PCa). However, the mechanisms of most of these variants are largely unknown. We integrated chromatin-immunoprecipitation-coupled sequencing and microarray expression profiling in TMPRSS2-ERG gene rearrangement positive DUCaP cells with the GWAS PCa risk SNPs catalog to identify disease susceptibility SNPs localized within functional androgen receptor-binding sites (ARBSs). Among the 48 GWAS index risk SNPs and 3,917 linked SNPs, 80 were found located in ARBSs. Of these, rs11891426:T>G in an intron of the melanophilin gene (MLPH) was within a novel putative auxiliary AR-binding motif, which is enriched in the neighborhood of canonical androgen-responsive elements. T→G exchange attenuated the transcriptional activity of the ARBS in an AR reporter gene assay. The expression of MLPH in primary prostate tumors was significantly lower in those with the G compared with the T allele and correlated significantly with AR protein. Higher melanophilin level in prostate tissue of patients with a favorable PCa risk profile points out a tumor-suppressive effect. These results unravel a hidden link between AR and a functional putative PCa risk SNP, whose allele alteration affects androgen regulation of its host gene MLPH.
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Affiliation(s)
- Huajie Bu
- Department of UrologyDivision of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
- Research Institute for Biomedical Aging ResearchUniversity of InnsbruckInnsbruckAustria
| | - Narisu Narisu
- Medical Genomics and Metabolic Genetics BranchNational Human Genome Research InstituteNational Institutes of HealthBethesdaMaryland
| | - Bettina Schlick
- Department of UrologyDivision of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
- OncotyrolCenter for Personalized Cancer MedicineInnsbruckAustria
| | - Johannes Rainer
- Biocenter InnsbruckSection for Molecular PathophysiologyMedical University of InnsbruckInnsbruckAustria
- Center for BiomedicineEURAC ResearchBolzanoItaly
| | - Thomas Manke
- Max Planck Institute for Molecular GeneticsBerlinGermany
- Max Planck Institute for Immunobiology and EpigeneticsFreiburgGermany
| | - Georg Schäfer
- Department of UrologyDivision of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
- Department of PathologyMedical University of InnsbruckInnsbruckAustria
| | - Lorenza Pasqualini
- Department of UrologyDivision of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
| | - Peter Chines
- Medical Genomics and Metabolic Genetics BranchNational Human Genome Research InstituteNational Institutes of HealthBethesdaMaryland
| | - Michal R. Schweiger
- Max Planck Institute for Molecular GeneticsBerlinGermany
- Cologne Center for GenomicsUniversity of CologneGermany
| | - Christian Fuchsberger
- Center for BiomedicineEURAC ResearchBolzanoItaly
- Department of BiostatisticsUniversity of MichiganAnn ArborMichigan
| | - Helmut Klocker
- Department of UrologyDivision of Experimental UrologyMedical University of InnsbruckInnsbruckAustria
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36
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Quek SI, Wong OM, Chen A, Borges GT, Ellis WJ, Salvanha DM, Vêncio RZN, Weaver B, Ench YM, Leach RJ, Thompson IM, Liu AY. Processing of voided urine for prostate cancer RNA biomarker analysis. Prostate 2015; 75:1886-95. [PMID: 26306723 DOI: 10.1002/pros.23066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 08/06/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Voided urine samples have been shown to contain cells released from prostate tumors. Could good quality RNA from cells in urine be obtained from every donor for multimarker analysis? In addition, could urine donation be as simple as possible, a practical consideration for a lab test, without involving a prostate massage (as indicated for PCA3 testing), which precludes frequent collection; needing it done at a specific time of day (e.g., first or second urine); and requiring prompt processing of samples in clinics with limited molecular biology capability? METHODS Collected urine samples were pelleted, and the RNA isolated was processed for cDNA synthesis and in vitro transcription to generate amplified sense aRNA. The resultant aRNA was rigorously analyzed for possible introduced changes. DMSO was used as a cell preservative for frozen storage of urine samples. RESULTS Good quality aRNA was obtained for over 100 samples collected at two different institutions. The process of RNA amplification removed co-isolated DNA in some samples, which did not affect RNA amplification. Amplification did not amplify genes that were absent and produce other expression alterations. The sense aRNA could be used to generate urinary transcriptomes specific to individual patients. No chaotropic agents for RNA preservation were added to the urine samples so that the supernatant could be used for analysis of secreted protein biomarkers. The time of donation was not important since patients were seen during the entire day. DMSO was an effective cell preservative for freezing urine. CONCLUSIONS Urinary RNA can be readily isolated and amplified for prostate cancer biomarker analysis. Individual patients had unique set of transcripts derived from their tumor.
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Affiliation(s)
- Sue-Ing Quek
- Department of Urology, University of Washington, Seattle, Washington
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington
| | - Olivia M Wong
- Department of Urology, University of Washington, Seattle, Washington
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington
| | - Adeline Chen
- Department of Urology, University of Washington, Seattle, Washington
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington
| | - Gisely T Borges
- Department of Urology, University of Washington, Seattle, Washington
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington
| | - William J Ellis
- Department of Urology, University of Washington, Seattle, Washington
| | - Diego M Salvanha
- Department of Computation and Mathematics, University of São Paulo at Riberão Preto, Brazil
| | - Ricardo Z N Vêncio
- Department of Computation and Mathematics, University of São Paulo at Riberão Preto, Brazil
| | - Brandi Weaver
- Department of Urology and The Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Yasmin M Ench
- Department of Urology and The Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Robin J Leach
- Department of Urology and The Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Ian M Thompson
- Department of Urology and The Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Alvin Y Liu
- Department of Urology, University of Washington, Seattle, Washington
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington
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Li Z, Zhu Q, Hu L, Chen H, Wu Z, Li D. Anterior gradient 2 is a binding stabilizer of hypoxia inducible factor-1α that enhances CoCl2 -induced doxorubicin resistance in breast cancer cells. Cancer Sci 2015; 106:1041-9. [PMID: 26079208 PMCID: PMC4556394 DOI: 10.1111/cas.12714] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 05/20/2015] [Accepted: 05/30/2015] [Indexed: 02/04/2023] Open
Abstract
Hypoxia inducible factor-1α (HIF-1α) is associated with human breast cancer chemoresistance. Various reports have suggested that multiple pathways are involved in HIF-1α induction and that the molecular mechanisms regulating HIF-1α-induced chemoresistance are still not fully understood. Here, we report that anterior gradient 2 (AGR2), a proposed breast cancer biomarker, is an essential regulator in hypoxia-induced doxorubicin resistance through the binding and stabilization of HIF-1α. Our results show that knockdown of AGR2 in MCF-7 cells leads to the suppression of HIF-1α-induced doxorubicin resistance, whereas elevated levels of AGR2 in MDA-MB-231 cells enhance HIF-1α-induced doxorubicin resistance. AGR2 expression, in turn, is upregulated by the hypoxic induction of HIF-1α at both translational and transcriptional levels via a hypoxia-responsive region from −937 to −912 bp on the AGR2 promoter sequence. By specific binding to HIF-1α, the increased level of intracellular AGR2 stabilizes HIF-1α and delays its proteasomal degradation. Finally, we found that AGR2-stabilized HIF-1α escalates multiple drug resistance protein 1 (MDR1) mRNA levels and limits doxorubicin intake of MCF-7 cells, whereas MCF-7/ADR, a doxorubicin resistant cell line with deficient AGR2 and HIF-1α, acquires wild-type MDR1 overexpression. Our findings, for the first time, describe AGR2 as an important regulator in chemical hypoxia-induced doxorubicin resistance in breast cancer cells, providing a possible explanation for the variable levels of chemoresistance in breast cancers and further validating AGR2 as a potential anti-breast cancer therapeutic target.
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Affiliation(s)
- Zheqi Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Zhu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Lingyun Hu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Chen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Zhenghua Wu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Dawei Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.,Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, Shanghai, China
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Sequeiros T, Bastarós JM, Sánchez M, Rigau M, Montes M, Placer J, Planas J, de Torres I, Reventós J, Pegtel DM, Doll A, Morote J, Olivan M. Urinary biomarkers for the detection of prostate cancer in patients with high-grade prostatic intraepithelial neoplasia. Prostate 2015; 75:1102-13. [PMID: 25845829 DOI: 10.1002/pros.22995] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 03/04/2015] [Indexed: 12/11/2022]
Abstract
INTRODUCTION High-grade prostatic intraepithelial neoplasia (HGPIN) is a recognized precursor stage of PCa. Men who present HGPIN in a first prostate biopsy face years of active surveillance including repeat biopsies. This study aimed to identify non-invasive prognostic biomarkers that differentiate early on between indolent HGPIN cases and those that will transform into actual PCa. METHODS We measured the expression of 21 candidate mRNA biomarkers using quantitative PCR in urine sediment samples from a cohort of 90 patients with initial diagnosis of HGPIN and a posterior follow up of at least two years. Uni- and multivariate statistical analyses were applied to analyze the candidate biomarkers and multiplex models using combinations of these biomarkers. RESULTS PSMA, PCA3, PSGR, GOLM, KLK3, CDH1, and SPINK1 behaved as predictors for PCa presence in repeat biopsies. Multiplex models outperformed (AUC = 0.81-0.86) the predictive power of single genes, including the FDA-approved PCA3 (AUC = 0.70). With a fixed sensitivity of 95%, the specificity of our multiplex models was of 41-58%, compared to the 30% of PCA3. The PPV of our models (30-38%) was also higher than the PPV of PCA3 (27%), suggesting that benign cases could be more accurately identified. Applying statistical models, we estimated that 33% to 47% of repeat biopsies could be prevented with a multiplex PCR model, representing an easy applicable and significant advantage over the current gold standard in urine sediment. DISCUSSION Using multiplex RTqPCR-based models in urine sediment it is possible to improve the current diagnostic method of choice (PCA3) to differentiate between benign HGPIN and PCa cases.
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Affiliation(s)
- Tamara Sequeiros
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Juan M Bastarós
- Department of Urology, Vall d'Hebron University Hospital and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Milagros Sánchez
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Marina Rigau
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Melania Montes
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - José Placer
- Department of Urology, Vall d'Hebron University Hospital and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Jaques Planas
- Department of Urology, Vall d'Hebron University Hospital and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Inés de Torres
- Department of Pathology, Vall d'Hebron University Hospital and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Jaume Reventós
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Ciències Bàsiques, Universitat Internacional de Catalunya, Barcelona, Spain
- IDIBELL- Bellvitge Biomedical Research Institute, Barcelona, Spain
| | - D Michiel Pegtel
- Department of Pathology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Andreas Doll
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Ciències Bàsiques, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Juan Morote
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Department of Urology, Vall d'Hebron University Hospital and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Mireia Olivan
- Group of Biomedical Research in Urology, Vall d'Hebron Research Institute (VHIR) and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
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Abstract
Anterior gradient 2 (AGR2) is a gene predominantly expressed in mucus-secreting tissues or in endocrine cells. Its expression is drastically increased in tumors including prostate cancer. Here we investigated whether AGR2 transcript levels can be used as a biomarker to detect prostate cancer (PCa). Using a PCR-based approach, we could show that in addition to the wild-type (AGRwt long and short) transcripts, five other AGR2 splice variants (SV) (referred to as AGR2 SV-C, -E, -F, -G and -H) were present in cancer cell lines. In tissue biopsies, SV-H and AGR2wt (short) distinguished between benign and PCa (p ≤ 0.05 n = 32). In urine exosomes, AGR2 SV-G and SV-H outperformed serum PSA. Receiver operating characteristic (ROC) curves showed the highest discriminatory power of SV-G and SV-H in predicting PCa. AGR2 SV-G and SV-H are potential diagnostic biomarkers for the non-invasive detection of PCa using urine exosomes.
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Pasqualini L, Bu H, Puhr M, Narisu N, Rainer J, Schlick B, Schäfer G, Angelova M, Trajanoski Z, Börno ST, Schweiger MR, Fuchsberger C, Klocker H. miR-22 and miR-29a Are Members of the Androgen Receptor Cistrome Modulating LAMC1 and Mcl-1 in Prostate Cancer. Mol Endocrinol 2015; 29:1037-54. [PMID: 26052614 DOI: 10.1210/me.2014-1358] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The normal prostate as well as early stages and advanced prostate cancer (PCa) require a functional androgen receptor (AR) for growth and survival. The recent discovery of microRNAs (miRNAs) as novel effector molecules of AR disclosed the existence of an intricate network between AR, miRNAs and downstream target genes. In this study DUCaP cells, characterized by high content of wild-type AR and robust AR transcriptional activity, were chosen as the main experimental model. By integrative analysis of chromatin immunoprecipitation-sequencing (ChIP-seq) and microarray expression profiling data, miRNAs putatively bound and significantly regulated by AR were identified. A direct AR regulation of miR-22, miR-29a, and miR-17-92 cluster along with their host genes was confirmed. Interestingly, endogenous levels of miR-22 and miR-29a were found to be reduced in PCa cells expressing AR. In primary tumor samples, miR-22 and miR-29a were less abundant in the cancerous tissue compared with the benign counterpart. This specific expression pattern was associated with a differential DNA methylation of the genomic AR binding sites. The identification of laminin gamma 1 (LAMC1) and myeloid cell leukemia 1 (MCL1) as direct targets of miR-22 and miR-29a, respectively, suggested a tumor-suppressive role of these miRNAs. Indeed, transfection of miRNA mimics in PCa cells induced apoptosis and diminished cell migration and viability. Collectively, these data provide additional information regarding the complex regulatory machinery that guides miRNAs activity in PCa, highlighting an important contribution of miRNAs in the AR signaling.
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Affiliation(s)
- Lorenza Pasqualini
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Huajie Bu
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Martin Puhr
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Narisu Narisu
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Johannes Rainer
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Bettina Schlick
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Georg Schäfer
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Mihaela Angelova
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Zlatko Trajanoski
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Stefan T Börno
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Michal R Schweiger
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Christian Fuchsberger
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
| | - Helmut Klocker
- Department of Urology (L.P., H.B., M.P., B.S., G.S., H.K.), Division of Experimental Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Research Institute for Biomedical Aging Research (H.B.), University of Innsbruck, 6020 Innsbruck, Austria; Medical Genomics and Metabolic Genetics Branch (N.N.), National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892; Biocenter Innsbruck (J.R.), Section for Molecular Pathophysiology, Medical University of Innsbruck, 6020 Innsbruck, Austria; Center for Biomedicine (J.R., C.F.), EURAC Bolzano, 39100 Bolzano, Italy; Oncotyrol (B.S.), Center for Personalized Cancer Medicine, 6020 Innsbruck, Austria; Department of Pathology (G.S.), Medical University of Innsbruck, 6020 Innsbruck, Austria; Biocenter Innsbruck (M.A., Z.T.), Division of Bioinformatics, Medical University of Innsbruck, 6020 Innsbruck, Austria; Max Planck Institute for Molecular Genetics (S.T.B., M.R.S.), 14195 Berlin, Germany; Cologne Center for Genomics (M.R.S.), University of Cologne, 50931 Cologne, Germany; and Department of Biostatistic (C.F.), University of Michigan, Ann Arbor, Michigan 48109
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Obacz J, Takacova M, Brychtova V, Dobes P, Pastorekova S, Vojtesek B, Hrstka R. The role of AGR2 and AGR3 in cancer: similar but not identical. Eur J Cell Biol 2015; 94:139-47. [PMID: 25666661 DOI: 10.1016/j.ejcb.2015.01.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 12/21/2022] Open
Abstract
In the past decades, highly related members of the protein disulphide isomerase family, anterior gradient protein AGR2 and AGR3, attracted researchers' attention due to their putative involvement in developmental processes and carcinogenesis. While AGR2 has been widely demonstrated as a metastasis-related protein whose elevated expression predicts worse patient outcome, little is known about AGR3's role in tumour biology. Thus, we aim to confront the issue of AGR3 function in physiology and pathology in the following review by comparing this protein with the better-described homologue AGR2. Relying on available data and in silico analyses, we show that AGR proteins are co-expressed or uncoupled in context-dependent manners in diverse carcinomas and healthy tissues. Further, we discuss plausible roles of both proteins in tumour-associated processes such as differentiation, proliferation, migration, invasion and metastasis. This work brings new hints and stimulates further thoughts on hitherto unresolved conundrum of anterior gradient protein function.
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Affiliation(s)
- Joanna Obacz
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic; Department of Molecular Medicine, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovak Republic.
| | - Martina Takacova
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic; Department of Molecular Medicine, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovak Republic.
| | - Veronika Brychtova
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic.
| | - Petr Dobes
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic.
| | - Silvia Pastorekova
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic; Department of Molecular Medicine, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovak Republic.
| | - Borivoj Vojtesek
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic.
| | - Roman Hrstka
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic.
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Shishkin SS, Eremina LS, Kovalev LI, Kovaleva MA. AGR2, ERp57/GRP58, and some other human protein disulfide isomerases. BIOCHEMISTRY (MOSCOW) 2014; 78:1415-30. [PMID: 24490732 DOI: 10.1134/s000629791313004x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review considers the major features of human proteins AGR2 and ERp57/GRP58 and of other members of the protein disulfide isomerase (PDI) family. The ability of both AGR2 and ERp57/GRP58 to catalyze the formation of disulfide bonds in proteins is the parameter most important for assigning them to a PDI family. Moreover, these proteins and also other members of the PDI family have specific structural features (thioredoxin-like domains, special C-terminal motifs characteristic for proteins localized in the endoplasmic reticulum, etc.) that are necessary for their assignment to a PDI family. Data demonstrating the role of these two proteins in carcinogenesis are analyzed. Special attention is given to data indicating the presence of biomarker features in AGR2 and ERp57/GRP58. It is now thought that there is sufficient reason for studies of AGR2 and ERp57/GRP58 for possible use of these proteins in diagnosis of tumors. There are also prospects for studies on AGR2 and ERp57/GRP58 leading to developments in chemotherapy. Thus, we suppose that further studies on different members of the PDI family using modern postgenomic technologies will broaden current concepts about functions of these proteins, and this will be helpful for solution of urgent biomedical problems.
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Affiliation(s)
- S S Shishkin
- Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia.
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Sita-Lumsden A, Fletcher CE, Dart DA, Brooke GN, Waxman J, Bevan CL. Circulating nucleic acids as biomarkers of prostate cancer. Biomark Med 2014; 7:867-77. [PMID: 24266819 DOI: 10.2217/bmm.13.104] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer, the most common cancer of western men, requires new biomarkers, especially given that the benefits of PSA testing remain uncertain. Nucleic acids can now be accurately and sensitively detected in human blood. Over the last decade, investigations into utility of circulating cell-free miRNA, DNA and mRNA as novel biomarkers have expanded exponentially. In the near future, they may be routinely used to accurately diagnose cancers, stratify indolent from aggressive disease and inform treatment decisions. However, advancement of such tests into clinical settings is hampered by technical problems with assay specificity and sensitivity, and small study sizes. This review highlights the different forms of circulating nucleic acids and those that show the most potential as viable biomarkers for prostate cancer.
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Affiliation(s)
- Ailsa Sita-Lumsden
- Department of Surgery & Cancer, Imperial Centre for Translational & Experimental Medicine, Imperial College London, London W12 0NN, UK
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Li Y, Lu J, Peng Z, Tan G, Liu N, Huang D, Zhang Z, Duan C, Tang X, Tang F. N,N'-dinitrosopiperazine-mediated AGR2 is involved in metastasis of nasopharyngeal carcinoma. PLoS One 2014; 9:e92081. [PMID: 24717913 PMCID: PMC3981702 DOI: 10.1371/journal.pone.0092081] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 02/19/2014] [Indexed: 12/15/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) has a high metastatic character in the clinic, but its mechanism is not clear. As a carcinogen with organ specificity for the nasopharyngeal epithelium, N,N'-Dinitrosopiperazine (DNP) is involved in NPC metastasis. Herein, our data revealed that anterior gradient 2 (AGR2) was overexpressed in human NPC tissues, particularly in cervical lymph node metastatic NPC (LMNPC). High AGR2 expression was associated with NPC metastasis. Importantly, DNP induced AGR2 expression, and increased cell motility and invasion in the NPC cell line 6-10B. However, DNP-mediated cell motility and invasion was dramatically decreased when transfected with siRNA-AGR2. Further, AGR2 directly regulated cathepsin (CTS) B and D by binding them in vitro. These results indicate that DNP induces AGR2 expression, regulates CTSB and CTSD, increases cell motility and invasion, and promotes NPC tumor metastasis. Therefore, DNP-mediated AGR2 expression may be an important factor in prolific NPC metastasis.
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Affiliation(s)
- Yuejin Li
- Clinical Laboratory and Medical Research Center, Zhuhai Hospital, Jinan University, Zhuhai People’s Hospital, Zhuhai, Guangdong, People’s Republic of China
| | - Jinping Lu
- Clinical Laboratory and Medical Research Center, Zhuhai Hospital, Jinan University, Zhuhai People’s Hospital, Zhuhai, Guangdong, People’s Republic of China
| | - Zhengke Peng
- Clinical Laboratory and Medical Research Center, Zhuhai Hospital, Jinan University, Zhuhai People’s Hospital, Zhuhai, Guangdong, People’s Republic of China
| | - Gongjun Tan
- Clinical Laboratory and Medical Research Center, Zhuhai Hospital, Jinan University, Zhuhai People’s Hospital, Zhuhai, Guangdong, People’s Republic of China
| | - Na Liu
- Medical Research Center and Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
| | - Damao Huang
- Medical Research Center and Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
| | - Zhenlin Zhang
- Clinical Laboratory and Medical Research Center, Zhuhai Hospital, Jinan University, Zhuhai People’s Hospital, Zhuhai, Guangdong, People’s Republic of China
| | - Chaojun Duan
- Medical Research Center and Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
| | - Xiaowei Tang
- Metallurgical Science and Engineering, Central South University, Changsha, People’s Republic of China
| | - Faqing Tang
- Clinical Laboratory and Medical Research Center, Zhuhai Hospital, Jinan University, Zhuhai People’s Hospital, Zhuhai, Guangdong, People’s Republic of China
- * E-mail:
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Li H, Wang J, Yang LM, Ning HB. Clinical significance of expression of anterior gradient-2 in colon adenocarcinoma. Shijie Huaren Xiaohua Zazhi 2014; 22:1064-1069. [DOI: 10.11569/wcjd.v22.i8.1064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of anterior gradient-2 (AGR2) in colon adenocarcinoma and the relationship between AGR2 expression and clinicopathological features of colon adenocarcinoma.
METHODS: AGR2 mRNA and protein expression in colon adenocarcinoma and tumor-adjacent non-cancerous tissues was detected by semi-quantitative RT-PCR, Western blot and immunohistochemistry.
RESULTS: The expression of AGR2 mRNA and protein in colon adenocarcinoma was significantly higher than that in tumor-adjacent non-cancerous tissues (0.95 ± 0.03 vs 0.21 ± 0.06, 0.93 ± 0.03 vs 0.31 ± 0.02, P < 0.05 for both). The positive rate of AGR2 expression in colon adenocarcinoma was significantly higher than that in tumor-adjacent non-cancerous tissues (75% vs 29.4%, P < 0.05). The expression of AGR2 was correlated with Dukes stage, histopathological grade and lymph node metastasis (P < 0.05 for all), but not with other clinicopathologic factors.
CONCLUSION: Our findings indicate that the expression of AGR2 is closely related to the tumorigenesis, progression and metastasis of colon adenocarcinoma. AGR2 may be used as a diagnostic marker for colon adenocarcinoma.
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Celma A, Servián P, Planas J, Placer J, Quilez MT, Arbós MA, de Torres I, Morote J. Clinical significance of proliferative inflammatory atrophy in prostate biopsy. Actas Urol Esp 2014; 38:122-6. [PMID: 24129226 DOI: 10.1016/j.acuro.2013.04.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 04/11/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Proliferative inflammatory atrophy (PIA) is a frequently observed lesion in prostate biopsies and some authors have postulated its involvement in prostate carcinogenesis. However, the mechanisms that would permit its neoplastic transformation and the clinical significance of its finding in a prostate biopsy is currently not well known. OBJECTIVE To analyze the characteristics of the PIA lesion, its possible role in prostate carcinogenesis and its relation with the tumor aggressiveness. MATERIAL AND METHOD A systematic review was made of the literature in PubMed with the terms «proliferative inflammatory atrophy» or «PIA» and «prostate.» The most important findings are summarized in accordance with the study objective. RESULTS PIA seems to be involved in prostate carcinogenesis. This hypothesis is based on its frequent association to cancer lesions (CaP) and on some genetic alterations that are common to the high grade prostatic intraepithelial neoplasia (HGPIN) and to the CaP, fundamentally deficit in GSTP1 expression and overexpression of AGR2. Currently, there are no epidemiological studies that evaluate the incidence of PIA or its association with HGPIN and CaP. Only one study, carried out by our group, has determined the global incidence of PIA in 30% of the prostate biopsies, a lower association to CaP than the HGPIN lesion and an association between PIA and tumors of lower and insignificant grade. CONCLUSIONS PIA shares genetic alterations with HGPIN and CaP. Currently, there is no epidemiologic evidence to consider that the PIA is associated to a greater incidence of CaP and the genetic and epidemiological data available suggest its association to not very aggressive tumors.
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Affiliation(s)
- A Celma
- Servicio de Urología, Hospital Vall d'Hebron, Barcelona, España; Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España.
| | - P Servián
- Servicio de Urología, Hospital Vall d'Hebron, Barcelona, España; Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España
| | - J Planas
- Servicio de Urología, Hospital Vall d'Hebron, Barcelona, España; Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España
| | - J Placer
- Servicio de Urología, Hospital Vall d'Hebron, Barcelona, España; Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España
| | - M T Quilez
- Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España
| | - M A Arbós
- Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España
| | - I de Torres
- Servicio de Anatomía Patológica, Hospital Vall d'Hebron, Barcelona, España; Departamento de Cirugía, Universidad Autónoma de Barcelona, Barcelona, España
| | - J Morote
- Servicio de Urología, Hospital Vall d'Hebron, Barcelona, España; Instituto de Investigación, Hospital Vall d'Hebron, Barcelona, España; Departamento de Cirugía, Universidad Autónoma de Barcelona, Barcelona, España
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Demir U, Koehler A, Schneider R, Schweiger S, Klocker H. Metformin anti-tumor effect via disruption of the MID1 translational regulator complex and AR downregulation in prostate cancer cells. BMC Cancer 2014; 14:52. [PMID: 24484909 PMCID: PMC3929757 DOI: 10.1186/1471-2407-14-52] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 01/27/2014] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Metformin is an approved drug prescribed for diabetes. Its role as an anti-cancer agent has drawn significant attention because of its minimal side effects and low cost. However, its mechanism of anti-tumour action has not yet been fully clarified. METHODS The effect on cell growth was assessed by cell counting. Western blot was used for analysis of protein levels, Boyden chamber assays for analyses of cell migration and co-immunoprecipitation (CoIP) followed by western blot, PCR or qPCR for analysis of protein-protein and protein-mRNA interactions. RESULTS Metformin showed an anti-proliferative effect on a wide range of prostate cancer cells. It disrupted the AR translational MID1 regulator complex leading to release of the associated AR mRNA and subsequently to downregulation of AR protein in AR positive cell lines. Inhibition of AR positive and negative prostate cancer cells by metformin suggests involvement of additional targets. The inhibitory effect of metformin was mimicked by disruption of the MID1-α4/PP2A protein complex by siRNA knockdown of MID1 or α4 whereas AMPK activation was not required. CONCLUSIONS Findings reported herein uncover a mechanism for the anti-tumor activity of metformin in prostate cancer, which is independent of its anti-diabetic effects. These data provide a rationale for the use of metformin in the treatment of hormone naïve and castration-resistant prostate cancer and suggest AR is an important indirect target of metformin.
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Affiliation(s)
- Ummuhan Demir
- Department of Urology, Innsbruck Medical University, 6020 Innsbruck, Austria
| | - Andrea Koehler
- Institute of Biochemistry, Center of Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria
| | - Rainer Schneider
- Institute of Biochemistry, Center of Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, 6020 Innsbruck, Austria
| | - Susann Schweiger
- Institute for Human Genetics, Medical School, University of Mainz, 55131 Mainz, Germany
| | - Helmut Klocker
- Department of Urology, Innsbruck Medical University, 6020 Innsbruck, Austria
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Shi T, Gao Y, Quek SI, Fillmore TL, Nicora CD, Su D, Zhao R, Kagan J, Srivastava S, Rodland KD, Liu T, Smith RD, Chan DW, Camp DG, Liu AY, Qian WJ. A highly sensitive targeted mass spectrometric assay for quantification of AGR2 protein in human urine and serum. J Proteome Res 2013; 13:875-82. [PMID: 24251762 DOI: 10.1021/pr400912c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Anterior gradient 2 (AGR2) is a secreted, cancer-associated protein in many types of epithelial cancer cells. We developed a highly sensitive targeted mass spectrometric assay for quantification of AGR2 in urine and serum. Digested peptides from clinical samples were processed by PRISM (high pressure and high resolution separations coupled with intelligent selection and multiplexing), which incorporates high pH reversed-phase liquid chromatography (LC) separations to fractionate and select target fractions for follow-on LC-selected reaction monitoring (LC-SRM) analyses. The PRISM-SRM assay for AGR2 showed a reproducibility of <10% CV and limit of quantification (LOQ) values of ∼130 pg/mL in serum and ∼10 pg per 100 μg of total protein mass in urine, respectively. A good correlation (R(2) = 0.91) was observed for the measurable AGR2 concentrations in urine between SRM and enzyme-linked immunosorbent assay (ELISA). On the basis of an initial cohort of 37 subjects, urinary AGR2/PSA concentration ratios showed a significant difference (P = 0.026) between noncancer and cancer. Large clinical cohort studies are needed for the validation of AGR2 as a useful diagnostic biomarker for prostate cancer. Our work validated the approach of identifying candidate secreted protein biomarkers through genomics and measurement by targeted proteomics, especially for proteins where no immunoassays are available.
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Affiliation(s)
- Tujin Shi
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, Washington 99352
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Dueregger A, Guggenberger F, Barthelmes J, Stecher G, Schuh M, Intelmann D, Abel G, Haunschild J, Klocker H, Ramoner R, Sampson N. Attenuation of nucleoside and anti-cancer nucleoside analog drug uptake in prostate cancer cells by Cimicifuga racemosa extract BNO-1055. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2013; 20:1306-1314. [PMID: 23972793 DOI: 10.1016/j.phymed.2013.07.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/29/2013] [Accepted: 07/15/2013] [Indexed: 06/02/2023]
Abstract
This study aimed to investigate the mechanisms underlying the anti-proliferative effects of the ethanolic Cimicifuga racemosa extract BNO-1055 on prostate cells and evaluate its therapeutic potential. BNO-1055 dose-dependently attenuated cellular uptake and incorporation of thymidine and BrdU and significantly inhibited cell growth after long-time exposure. Similar results were obtained using saponin-enriched sub-fractions of BNO-1055. These inhibitory effects of BNO-1055 could be mimicked using pharmacological inhibitors and isoform-specific siRNAs targeting the equilibrative nucleoside transporters ENT1 and ENT2. Moreover, BNO-1055 attenuated the uptake of clinically relevant nucleoside analogs, e.g. the anti-cancer drugs gemcitabine and fludarabine. Consistent with inhibition of the salvage nucleoside uptake pathway BNO-1055 potentiated the cytotoxicity of the de novo nucleotide synthesis inhibitor 5-FU without significantly altering its uptake. Collectively, these data show for the first time that the anti-proliferative effects of BNO-1055 result from hindered nucleoside uptake due to impaired ENT activity and demonstrate the potential therapeutic use of BNO-1055 for modulation of nucleoside transport.
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Affiliation(s)
- Andrea Dueregger
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria; Oncotyrol GmbH, Center for Personalized Medicine, Innsbruck, Austria
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MALDI-MS tissue imaging identification of biliverdin reductase B overexpression in prostate cancer. J Proteomics 2013; 91:500-14. [DOI: 10.1016/j.jprot.2013.08.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 07/30/2013] [Accepted: 08/03/2013] [Indexed: 01/18/2023]
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