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Zila N, Eichhoff OM, Steiner I, Mohr T, Bileck A, Cheng PF, Leitner A, Gillet L, Sajic T, Goetze S, Friedrich B, Bortel P, Strobl J, Reitermaier R, Hogan SA, Martínez Gómez JM, Staeger R, Tuchmann F, Peters S, Stary G, Kuttke M, Elbe-Bürger A, Hoeller C, Kunstfeld R, Weninger W, Wollscheid B, Dummer R, French LE, Gerner C, Aebersold R, Levesque MP, Paulitschke V. Proteomic Profiling of Advanced Melanoma Patients to Predict Therapeutic Response to Anti-PD-1 Therapy. Clin Cancer Res 2024; 30:159-175. [PMID: 37861398 DOI: 10.1158/1078-0432.ccr-23-0562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/17/2023] [Accepted: 10/18/2023] [Indexed: 10/21/2023]
Abstract
PURPOSE Despite high clinical need, there are no biomarkers that accurately predict the response of patients with metastatic melanoma to anti-PD-1 therapy. EXPERIMENTAL DESIGN In this multicenter study, we applied protein depletion and enrichment methods prior to various proteomic techniques to analyze a serum discovery cohort (n = 56) and three independent serum validation cohorts (n = 80, n = 12, n = 17). Further validation analyses by literature and survival analysis followed. RESULTS We identified several significantly regulated proteins as well as biological processes such as neutrophil degranulation, cell-substrate adhesion, and extracellular matrix organization. Analysis of the three independent serum validation cohorts confirmed the significant differences between responders (R) and nonresponders (NR) observed in the initial discovery cohort. In addition, literature-based validation highlighted 30 markers overlapping with previously published signatures. Survival analysis using the TCGA database showed that overexpression of 17 of the markers we identified correlated with lower overall survival in patients with melanoma. CONCLUSIONS Ultimately, this multilayered serum analysis led to a potential marker signature with 10 key markers significantly altered in at least two independent serum cohorts: CRP, LYVE1, SAA2, C1RL, CFHR3, LBP, LDHB, S100A8, S100A9, and SAA1, which will serve as the basis for further investigation. In addition to patient serum, we analyzed primary melanoma tumor cells from NR and found a potential marker signature with four key markers: LAMC1, PXDN, SERPINE1, and VCAN.
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Affiliation(s)
- Nina Zila
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
- Division of Biomedical Science, University of Applied Sciences FH Campus Wien, Vienna, Austria
| | - Ossia M Eichhoff
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Irene Steiner
- Center for Medical Data Science, Institute of Medical Statistics, Medical University of Vienna, Vienna, Austria
| | - Thomas Mohr
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Andrea Bileck
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
- Joint Metabolome Facility, University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Phil F Cheng
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Alexander Leitner
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Ludovic Gillet
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Tatjana Sajic
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Sandra Goetze
- Department of Health Sciences and Technology, Institute of Translational Medicine, ETH Zurich, Zurich, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
- ETH PHRT Swiss Multi-Omics Center (SMOC), Zurich, Switzerland
| | - Betty Friedrich
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Patricia Bortel
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
| | - Johanna Strobl
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - René Reitermaier
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sabrina A Hogan
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Julia M Martínez Gómez
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Ramon Staeger
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Felix Tuchmann
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sophie Peters
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Georg Stary
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Mario Kuttke
- Center for Physiology and Pharmacology, Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | | | - Christoph Hoeller
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Rainer Kunstfeld
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Bernd Wollscheid
- Department of Health Sciences and Technology, Institute of Translational Medicine, ETH Zurich, Zurich, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Reinhard Dummer
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Lars E French
- Department of Dermatology and Allergy University Hospital, Ludwig-Maximilian-University Munich, Munich, Germany
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Christopher Gerner
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
- Joint Metabolome Facility, University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Mitchell P Levesque
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Verena Paulitschke
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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Wyllie K, Panagopoulos V, Cox TR. The role of peroxidasin in solid cancer progression. Biochem Soc Trans 2023; 51:1881-1895. [PMID: 37801286 PMCID: PMC10657184 DOI: 10.1042/bst20230018] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/07/2023]
Abstract
Peroxidasin is a heme-containing peroxidase enzyme that plays a vital role in the cross-linking of collagen IV molecules in basement membranes. Collagen IV cross-links are essential for providing structure and mechanical stability throughout tissue development, homeostasis, and wound healing. During cancer progression, the basement membrane is degraded, and proteins typically found in the basement membrane, including peroxidasin and collagen IV, can be found spread throughout the tumour microenvironment where they interact with cancer cells and alter cell behaviour. Whilst peroxidasin is reported to be up-regulated in a number of different cancers, the role that it plays in disease progression and metastasis has only recently begun to be studied. This review highlights the current literature exploring the known roles of peroxidasin in normal tissues and cancer progression, regulators of peroxidasin expression, and the reported relationships between peroxidasin expression and patient outcome in cancer.
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Affiliation(s)
- Kaitlin Wyllie
- Matrix & Metastasis Lab, The Garvan Institute of Medical Research & the Kinghorn Cancer Centre, Cancer Ecosystems Program, Sydney, NSW 2010, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Vasilios Panagopoulos
- Myeloma Research Laboratory, Faculty of Health and Medical Sciences, School of Biomedicine, University of Adelaide, Adelaide, Australia
- Precision Cancer Medicine Theme, Solid Tumour Program, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Thomas R. Cox
- Matrix & Metastasis Lab, The Garvan Institute of Medical Research & the Kinghorn Cancer Centre, Cancer Ecosystems Program, Sydney, NSW 2010, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
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Li C, Dong X, Yuan Q, Xu G, Di Z, Yang Y, Hou J, Zheng L, Chen W, Wu G. Identification of novel characteristic biomarkers and immune infiltration profile for the anaplastic thyroid cancer via machine learning algorithms. J Endocrinol Invest 2023:10.1007/s40618-023-02022-6. [PMID: 36725810 DOI: 10.1007/s40618-023-02022-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/24/2023] [Indexed: 02/03/2023]
Abstract
PURPOSE Anaplastic thyroid cancer (ATC) is a rare and lethal malignant cancer. In recent years, the application of molecular-driven targeted therapy and immunotherapy has markedly improved the prognosis of ATC. This study aimed to identify characteristic genes for ATC diagnosis and revealed the role of ATC characteristic genes in drug sensitivity and immune cell infiltration. METHODS We downloaded ATC RNA-sequencing data from the GEO database. Following the combination and normalization of the dataset, we first divided the combined datasets into the training cohort and the validation cohort. We identified differentially expressed genes (DEGs) in ATC by differential expression analysis in the training cohort. We used two machine learning algorithms, least absolute shrinkage and selection operator (LASSO) and support vector machine-recursive feature elimination (SVM-RFE) to identify ATC characteristic genes. The CIBERSORT algorithm was performed to calculate the abundance of various immune cells in ATC. Finally, we validated the expression of ATC characteristic genes by quantitative RT-PCR (RT-qPCR) in ATC cell lines and immunohistochemistry (IHC). RESULTS A total of 425 DEGs were identified in the training cohort, including 240 upregulated genes and 185 downregulated genes. Four ATC characteristic genes (ADM, PXDN, MMP1, and TFF3) were identified, and their diagnostic value was validated in the validation cohort (AUC in ROC analysis > 0.75). We established a practical gene expression-based nomogram to accurately predict the probability of ATC. We also found that ATC characteristic biomarkers are associated with the tumor immune microenvironment and drug sensitivity. CONCLUSION ADM, PXDN, MMP1, and TFF3 might serve as potential ATC diagnostic biomarkers and may be helpful for ATC molecular targeted therapy and immunotherapy.
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Affiliation(s)
- C Li
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Dong
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Q Yuan
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - G Xu
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Di
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Y Yang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - J Hou
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - L Zheng
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - W Chen
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - G Wu
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
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Akter Z, Salamat N, Ali MY, Zhang L. The promise of targeting heme and mitochondrial respiration in normalizing tumor microenvironment and potentiating immunotherapy. Front Oncol 2023; 12:1072739. [PMID: 36686754 PMCID: PMC9851275 DOI: 10.3389/fonc.2022.1072739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/12/2022] [Indexed: 01/07/2023] Open
Abstract
Cancer immunotherapy shows durable treatment responses and therapeutic benefits compared to other cancer treatment modalities, but many cancer patients display primary and acquired resistance to immunotherapeutics. Immunosuppressive tumor microenvironment (TME) is a major barrier to cancer immunotherapy. Notably, cancer cells depend on high mitochondrial bioenergetics accompanied with the supply of heme for their growth, proliferation, progression, and metastasis. This excessive mitochondrial respiration increases tumor cells oxygen consumption, which triggers hypoxia and irregular blood vessels formation in various regions of TME, resulting in an immunosuppressive TME, evasion of anti-tumor immunity, and resistance to immunotherapeutic agents. In this review, we discuss the role of heme, heme catabolism, and mitochondrial respiration on mediating immunosuppressive TME by promoting hypoxia, angiogenesis, and leaky tumor vasculature. Moreover, we discuss the therapeutic prospects of targeting heme and mitochondrial respiration in alleviating tumor hypoxia, normalizing tumor vasculature, and TME to restore anti-tumor immunity and resensitize cancer cells to immunotherapy.
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Patel SD, Anand D, Motohashi H, Katsuoka F, Yamamoto M, Lachke SA. Deficiency of the bZIP transcription factors Mafg and Mafk causes misexpression of genes in distinct pathways and results in lens embryonic developmental defects. Front Cell Dev Biol 2022; 10:981893. [PMID: 36092713 PMCID: PMC9459095 DOI: 10.3389/fcell.2022.981893] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 07/28/2022] [Indexed: 01/11/2023] Open
Abstract
Deficiency of the small Maf proteins Mafg and Mafk cause multiple defects, namely, progressive neuronal degeneration, cataract, thrombocytopenia and mid-gestational/perinatal lethality. Previous data shows Mafg -/-:Mafk +/- compound knockout (KO) mice exhibit cataracts age 4-months onward. Strikingly, Mafg -/-:Mafk -/- double KO mice develop lens defects significantly early in life, during embryogenesis, but the pathobiology of these defects is unknown, and is addressed here. At embryonic day (E)16.5, the epithelium of lens in Mafg -/-:Mafk -/- animals appears abnormally multilayered as demonstrated by E-cadherin and nuclear staining. Additionally, Mafg -/-:Mafk -/- lenses exhibit abnormal distribution of F-actin near the "fulcrum" region where epithelial cells undergo apical constriction prior to elongation and reorientation as early differentiating fiber cells. To identify the underlying molecular changes, we performed high-throughput RNA-sequencing of E16.5 Mafg -/-:Mafk -/- lenses and identified a cohort of differentially expressed genes that were further prioritized using stringent filtering criteria and validated by RT-qPCR. Several key factors associated with the cytoskeleton, cell cycle or extracellular matrix (e.g., Cdk1, Cdkn1c, Camsap1, Col3a1, Map3k12, Sipa1l1) were mis-expressed in Mafg -/-:Mafk -/- lenses. Further, the congenital cataract-linked extracellular matrix peroxidase Pxdn was significantly overexpressed in Mafg -/-:Mafk -/- lenses, which may cause abnormal cell morphology. These data also identified the ephrin signaling receptor Epha5 to be reduced in Mafg -/-:Mafk -/- lenses. This likely contributes to the Mafg -/-:Mafk -/- multilayered lens epithelium pathology, as loss of an ephrin ligand, Efna5 (ephrin-A5), causes similar lens defects. Together, these findings uncover a novel early function of Mafg and Mafk in lens development and identify their new downstream regulatory relationships with key cellular factors.
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Affiliation(s)
- Shaili D. Patel
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
| | - Hozumi Motohashi
- Department of Gene Expression Regulation, Institute of Development, Aging, and Cancer, Tohoku University, Sendai, Japan
| | - Fumiki Katsuoka
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Salil A. Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE, United States,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, United States,*Correspondence: Salil A. Lachke,
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Cheng G, Shi R. Mammalian peroxidasin (PXDN): From physiology to pathology. Free Radic Biol Med 2022; 182:100-107. [PMID: 35219848 PMCID: PMC8957557 DOI: 10.1016/j.freeradbiomed.2022.02.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023]
Abstract
Heme-containing peroxidases catalyze the oxidation of a variety of substrates by consuming hydrogen peroxide (H2O2), and play diversified roles in physiology and pathology including innate immunity, the synthesis of thyroid hormone and the extracellular matrix, as well as the pathogenesis of several inflammatory diseases. Peroxidasin (PXDN), also known as Vascular Peroxidase-1 (VPO1), is a newly identified peroxidase and expresses in multiple cells and tissues including cardiovascular system and the lung. Recent studies imply its roles in the innate immunity, cardiovascular physiology and diseases, and extracellular matrix formation. Studies on the role of PXDN in human diseases are entering a new and exciting stage, and this review provides the insights into this emerging field of PXDN.
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Affiliation(s)
- Guangjie Cheng
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States.
| | - Ruizheng Shi
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China
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Su JQ, Lai PY, Hu PH, Hu JM, Chang PK, Chen CY, Wu JJ, Lin YJ, Sun CA, Yang T, Hsu CH, Lin HC, Chou YC. Differential DNA methylation analysis of SUMF2, ADAMTS5, and PXDN provides novel insights into colorectal cancer prognosis prediction in Taiwan. World J Gastroenterol 2022; 28:825-839. [PMID: 35317099 PMCID: PMC8900576 DOI: 10.3748/wjg.v28.i8.825] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/24/2021] [Accepted: 01/22/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients with colorectal cancer (CRC) undergo surgery, as well as perioperative chemoradiation or adjuvant chemotherapy primarily based on the tumor–node– metastasis (TNM) cancer staging system. However, treatment responses and prognostic outcomes of patients within the same stage vary markedly. The potential use of novel biomarkers can improve prognostication and shared decision making before implementation into certain therapies.
AIM To investigate whether SUMF2, ADAMTS5, and PXDN methylation status could be associated with CRC prognosis.
METHODS We conducted a Taiwan region cohort study involving 208 patients with CRC recruited from Tri-Service General Hospital and applied the candidate gene approach to identify three genes involved in oncogenesis pathways. A methylation-specific polymerase chain reaction (MS-PCR) and EpiTYPER DNA methylation analysis were employed to detect methylation status and to quantify the methylation level of candidate genes in tumor tissue and adjacent normal tissue from participants. We evaluated SUMF2, ADAMTS5, and PXDN methylation as predictors of prognosis, including recurrence-free survival (RFS), progression-free survival (PFS), and overall survival (OS), using a Cox regression model and Kaplan–Meier analysis.
RESULTS We revealed various outcomes related to methylation and prognosis. Significantly shorter PFS and OS were associated with the CpG_3+CpG_7 hypermethylation of SUMF2 from tumor tissue compared with CpG_3+CpG_7 hypomethylation [hazard ratio (HR) = 2.24, 95% confidence interval (CI) = 1.03-4.85 for PFS, HR = 2.56 and 95%CI = 1.08-6.04 for OS]. By contrast, a significantly longer RFS was associated with CpG_2 and CpG_13 hypermethylation of ADAMTS5 from normal tissue compared with CpG_2 and CpG_13 hypomethylation [HR (95%CI) = 0.15 (0.03-0.71) for CpG_2 and 0.20 (0.04-0.97) for CpG_13]. The relationship between the methylation status of PXDN and the prognosis of CRC did not reach statistical significance.
CONCLUSION Our study found that CpG_3+CpG_7 hypermethylation of SUMF2 from tumor tissue was associated with significantly shorter PFS and OS compared with CpG_3+CpG_7 hypomethylation. CpG_2 and CpG_13 hypermethylation of ADAMTS5 from normal tissue was associated with a significantly longer RFS compared with CpG_2 and CpG_13 hypomethylation. These methylation-related biomarkers which have implications for CRC prognosis prediction may aid physicians in clinical decision-making.
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Affiliation(s)
- Jing-Quan Su
- School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
| | - Pin-Yu Lai
- School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
| | - Pei-Hsuan Hu
- School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
| | - Je-Ming Hu
- Division of Colorectal Surgery, Department of surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan
| | - Pi-Kai Chang
- Division of Colorectal Surgery, Department of surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Chao-Yang Chen
- Division of Colorectal Surgery, Department of surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Jia-Jheng Wu
- School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
| | - Yu-Jyun Lin
- School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
| | - Chien-An Sun
- Department of Public Health, College of Medicine, Fu-Jen Catholic University, New Taipei City 242, Taiwan
- Big Data Research Center, College of Medicine, Fu-Jen Catholic University, New Taipei City 242, Taiwan
| | - Tsan Yang
- Department of Health Business Administration, Meiho University, Pingtung County 912, Taiwan
| | - Chih-Hsiung Hsu
- School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
| | - Hua-Ching Lin
- Division of Colorectal Surgery, Department of Surgery, Cheng-Hsin General Hospital, Taipei 112, Taiwan
| | - Yu-Ching Chou
- School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan
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Paumann-Page M, Kienzl NF, Motwani J, Bathish B, Paton LN, Magon NJ, Sevcnikar B, Furtmüller PG, Traxlmayr MW, Obinger C, Eccles MR, Winterbourn CC. Peroxidasin protein expression and enzymatic activity in metastatic melanoma cell lines are associated with invasive potential. Redox Biol 2021; 46:102090. [PMID: 34438259 PMCID: PMC8390535 DOI: 10.1016/j.redox.2021.102090] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 07/31/2021] [Indexed: 02/06/2023] Open
Abstract
Peroxidasin, a heme peroxidase, has been shown to play a role in cancer progression. mRNA expression has been reported to be upregulated in metastatic melanoma cell lines and connected to the invasive phenotype, but little is known about how peroxidasin acts in cancer cells. We have analyzed peroxidasin protein expression and activity in eight metastatic melanoma cell lines using an ELISA developed with an in-house peroxidasin binding protein. RNAseq data analysis confirmed high peroxidasin mRNA expression in the five cell lines classified as invasive and low expression in the three non-invasive cell lines. Protein levels of peroxidasin were higher in the cell lines with an invasive phenotype. Active peroxidasin was secreted to the cell culture medium, where it accumulated over time, and peroxidasin protein levels in the medium were also much higher in invasive than non-invasive cell lines. The only well-established physiological role of peroxidasin is in the formation of a sulfilimine bond, which cross-links collagen IV in basement membranes via catalyzed oxidation of bromide to hypobromous acid. We found that peroxidasin secreted from melanoma cells formed sulfilimine bonds in uncross-linked collagen IV, confirming peroxidasin activity and hypobromous acid formation. Moreover, 3-bromotyrosine, a stable product of hypobromous acid reacting with tyrosine residues, was detected in invasive melanoma cells, substantiating that their expression of peroxidasin generates hypobromous acid, and showing that it does not exclusively react with collagen IV, but also with other biomolecules.
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Affiliation(s)
- Martina Paumann-Page
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago Christchurch, P.O. Box 4345, Christchurch, New Zealand.
| | - Nikolaus F Kienzl
- Department of Chemistry, Institute of Biochemistry, University of Natural Resources and Life Sciences, 1190, Vienna, Austria
| | - Jyoti Motwani
- Department of Pathology, Dunedin School of Medicine, University of Otago, 270 Great King Street, Dunedin, 9054, New Zealand
| | - Boushra Bathish
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago Christchurch, P.O. Box 4345, Christchurch, New Zealand
| | - Louise N Paton
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago Christchurch, P.O. Box 4345, Christchurch, New Zealand
| | - Nicholas J Magon
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago Christchurch, P.O. Box 4345, Christchurch, New Zealand
| | - Benjamin Sevcnikar
- Department of Chemistry, Institute of Biochemistry, University of Natural Resources and Life Sciences, 1190, Vienna, Austria
| | - Paul G Furtmüller
- Department of Chemistry, Institute of Biochemistry, University of Natural Resources and Life Sciences, 1190, Vienna, Austria
| | - Michael W Traxlmayr
- Department of Chemistry, Institute of Biochemistry, University of Natural Resources and Life Sciences, 1190, Vienna, Austria
| | - Christian Obinger
- Department of Chemistry, Institute of Biochemistry, University of Natural Resources and Life Sciences, 1190, Vienna, Austria
| | - Mike R Eccles
- Department of Pathology, Dunedin School of Medicine, University of Otago, 270 Great King Street, Dunedin, 9054, New Zealand
| | - Christine C Winterbourn
- Centre for Free Radical Research, Department of Pathology and Biomedical Science, University of Otago Christchurch, P.O. Box 4345, Christchurch, New Zealand
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Sunami Y, Rebelo A, Kleeff J. Lipid Droplet-Associated Factors, PNPLA3, TM6SF2, and HSD17B Proteins in Hepatopancreatobiliary Cancer. Cancers (Basel) 2021; 13:cancers13174391. [PMID: 34503201 PMCID: PMC8431307 DOI: 10.3390/cancers13174391] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/17/2021] [Accepted: 08/25/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Aberrant lipid synthesis and reprogrammed lipid metabolism are both associated with the development and progression of pancreatic and liver cancer. Most cells store fatty acids in the form of triacylglycerols in lipid droplets. Lipid droplets are intracellular organelles that not only store neutral lipids, but also play roles as molecular messengers and signaling factors. Some cancer cells accumulate massive amount of lipid droplets. Lipid droplets and lipid droplet-associated factors are further implicated to mediate proliferation, invasion, metastasis, as well as chemotherapy resistance in several types of cancer. This review dissected recent findings on the role of several lipid droplet-associated factors, patatin-like phospholipase domain-containing 3 (PNPLA3), Transmembrane 6 superfamily member 2 (TM6SF2), and 17β-hydroxysteroid dehydrogenase (HSD17B) 11 and 13 as well as their genetic variations in hepatopancreatobiliary diseases, especially cancer. Abstract Pancreatic and liver cancer are leading causes of cancer deaths, and by 2030, they are projected to become the second and the third deadliest cancer respectively. Cancer metabolism, especially lipid metabolism, plays an important role in progression and metastasis of many types of cancer, including pancreatic and liver cancer. Lipid droplets are intracellular organelles that store neutral lipids, but also act as molecular messengers, and signaling factors. It is becoming increasingly evident that alterations in the regulation of lipid droplets and their associated factors influence the risk of developing not only metabolic disease but also fibrosis and cancer. In the current review article, we summarized recent findings concerning the roles of lipid droplet-associated factors, patatin-like phospholipase domain-containing 3, Transmembrane 6 superfamily member 2, and 17β-hydroxysteroid dehydrogenase 11 and 13 as well as genetic variants in pancreatic and hepatic diseases. A better understanding of cancer type- and cell type-specific roles of lipid droplet-associated factors is important for establishing new therapeutic options in the future.
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Yong HEJ, Chan SY. Current approaches and developments in transcript profiling of the human placenta. Hum Reprod Update 2021; 26:799-840. [PMID: 33043357 PMCID: PMC7600289 DOI: 10.1093/humupd/dmaa028] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The placenta is the active interface between mother and foetus, bearing the molecular marks of rapid development and exposures in utero. The placenta is routinely discarded at delivery, providing a valuable resource to explore maternal-offspring health and disease in pregnancy. Genome-wide profiling of the human placental transcriptome provides an unbiased approach to study normal maternal–placental–foetal physiology and pathologies. OBJECTIVE AND RATIONALE To date, many studies have examined the human placental transcriptome, but often within a narrow focus. This review aims to provide a comprehensive overview of human placental transcriptome studies, encompassing those from the cellular to tissue levels and contextualize current findings from a broader perspective. We have consolidated studies into overarching themes, summarized key research findings and addressed important considerations in study design, as a means to promote wider data sharing and support larger meta-analysis of already available data and greater collaboration between researchers in order to fully capitalize on the potential of transcript profiling in future studies. SEARCH METHODS The PubMed database, National Center for Biotechnology Information and European Bioinformatics Institute dataset repositories were searched, to identify all relevant human studies using ‘placenta’, ‘decidua’, ‘trophoblast’, ‘transcriptome’, ‘microarray’ and ‘RNA sequencing’ as search terms until May 2019. Additional studies were found from bibliographies of identified studies. OUTCOMES The 179 identified studies were classifiable into four broad themes: healthy placental development, pregnancy complications, exposures during pregnancy and in vitro placental cultures. The median sample size was 13 (interquartile range 8–29). Transcriptome studies prior to 2015 were predominantly performed using microarrays, while RNA sequencing became the preferred choice in more recent studies. Development of fluidics technology, combined with RNA sequencing, has enabled transcript profiles to be generated of single cells throughout pregnancy, in contrast to previous studies relying on isolated cells. There are several key study aspects, such as sample selection criteria, sample processing and data analysis methods that may represent pitfalls and limitations, which need to be carefully considered as they influence interpretation of findings and conclusions. Furthermore, several areas of growing importance, such as maternal mental health and maternal obesity are understudied and the profiling of placentas from these conditions should be prioritized. WIDER IMPLICATIONS Integrative analysis of placental transcriptomics with other ‘omics’ (methylome, proteome and metabolome) and linkage with future outcomes from longitudinal studies is crucial in enhancing knowledge of healthy placental development and function, and in enabling the underlying causal mechanisms of pregnancy complications to be identified. Such understanding could help in predicting risk of future adversity and in designing interventions that can improve the health outcomes of both mothers and their offspring. Wider collaboration and sharing of placental transcriptome data, overcoming the challenges in obtaining sufficient numbers of quality samples with well-defined clinical characteristics, and dedication of resources to understudied areas of pregnancy will undoubtedly help drive the field forward.
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Affiliation(s)
- Hannah E J Yong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore
| | - Shiao-Yng Chan
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore.,Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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11
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Kurihara-Shimomura M, Sasahira T, Shimomura H, Kirita T. Peroxidan Plays a Tumor-Promoting Role in Oral Squamous Cell Carcinoma. Int J Mol Sci 2020; 21:ijms21155416. [PMID: 32751434 PMCID: PMC7432510 DOI: 10.3390/ijms21155416] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 12/19/2022] Open
Abstract
Despite dramatic progress in cancer diagnosis and treatment, the five-year survival rate of oral squamous cell carcinoma (OSCC) is still only about 50%. Thus, the need for elucidating the molecular mechanisms underlying OSCC is urgent. We previously identified the peroxidasin gene (PXDN) as one of several novel genes associated with OSCC. Although the PXDN protein is known to act as a tumor-promoting factor associated with the Warburg effect, its function and role in OSCC are poorly understood. In this study, we investigated the expression, function, and relationship with the Warburg effect of PXDN in OSCC. In immunohistochemical analysis of OSCC specimens, we observed that elevated PXDN expression correlated with lymph node metastasis and a diffuse invasion pattern. High PXDN expression was confirmed as an independent predictor of poor prognosis by multivariate analysis. The PXDN expression level correlated positively with that of pyruvate kinase (PKM2) and heme oxygenase-1 (HMOX1) and with lactate and ATP production. No relationship between PXDN expression and mitochondrial activation was observed, and PXDN expression correlated inversely with reactive oxygen species (ROS) production. These results suggest that PXDN might be a tumor progression factor causing a Warburg-like effect in OSCC.
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Affiliation(s)
- Miyako Kurihara-Shimomura
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan; (M.K.-S.); (H.S.)
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan;
| | - Tomonori Sasahira
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan;
- Correspondence: ; Tel.: +81-744-29-8849; Fax: +81-744-25-7308
| | - Hiroyuki Shimomura
- Department of Oral and Maxillofacial Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan; (M.K.-S.); (H.S.)
| | - Tadaaki Kirita
- Department of Molecular Pathology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan;
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12
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Jasmer KJ, Hou J, Mannino P, Cheng J, Hannink M. Heme oxygenase promotes B-Raf-dependent melanosphere formation. Pigment Cell Melanoma Res 2020; 33:850-868. [PMID: 32558263 DOI: 10.1111/pcmr.12905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/09/2020] [Accepted: 06/07/2020] [Indexed: 12/22/2022]
Abstract
Biosynthesis and degradation of heme, an iron-bound protoporphyrin molecule utilized by a wide variety of metabolic processes, are tightly regulated. Two closely related enzymes, heme oxygenase 1 (HMOX1) and heme oxygenase 2 (HMOX2), degrade free heme to produce carbon monoxide, Fe2+ , and biliverdin. HMOX1 expression is controlled via the transcriptional activator, NFE2L2, and the transcriptional repressor, Bach1. Transcription of HMOX1 and other NFE2L2-dependent genes is increased in response to electrophilic and reactive oxygen species. Many tumor-derived cell lines have elevated levels of NFE2L2. Elevated expression of NFE2L2-dependent genes contributes to tumor growth and acquired resistance to therapies. Here, we report a novel role for heme oxygenase activity in melanosphere formation by human melanoma-derived cell lines. Transcriptional induction of HMOX1 through derepression of Bach1 or transcriptional activation of HMOX2 by oncogenic B-RafV600E results in increased melanosphere formation. Genetic ablation of HMOX1 diminishes melanosphere formation. Further, inhibition of heme oxygenase activity with tin protoporphyrin markedly reduces melanosphere formation driven by either Bach1 derepression or B-RafV600E expression. Global transcriptome analyses implicate genes involved in focal adhesion and extracellular matrix interactions in melanosphere formation.
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Affiliation(s)
- Kimberly J Jasmer
- Division of Biological Sciences, University of Missouri, Columbia, Missouri, USA.,Christopher Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Jie Hou
- Computer Science Department, University of Missouri, Columbia, Missouri, USA
| | - Philip Mannino
- Christopher Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
| | - Jianlin Cheng
- Computer Science Department, University of Missouri, Columbia, Missouri, USA
| | - Mark Hannink
- Christopher Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
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13
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Medfai H, Khalil A, Rousseau A, Nuyens V, Paumann-Page M, Sevcnikar B, Furtmüller PG, Obinger C, Moguilevsky N, Peulen O, Herfs M, Castronovo V, Amri M, Van Antwerpen P, Vanhamme L, Zouaoui Boudjeltia K. Human peroxidasin 1 promotes angiogenesis through ERK1/2, Akt, and FAK pathways. Cardiovasc Res 2020; 115:463-475. [PMID: 29982533 DOI: 10.1093/cvr/cvy179] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/03/2018] [Indexed: 12/17/2022] Open
Abstract
Aims The term angiogenesis refers to sprouting of new blood vessels from pre-existing ones. The angiogenic process involves cell migration and tubulogenesis requiring interaction between endothelial cells and the extracellular matrix. Human peroxidasin 1 (hsPxd01) is a multidomain heme peroxidase found embedded in the basement membranes. As it promotes the stabilization of extracellular matrix, we investigated its possible role in angiogenesis both in vitro and in vivo. Methods and results We analysed the effects of peroxidasin 1 gene silencing and supplementation by recombinant hsPxd01 in TeloHAEC endothelial cells on cell migration, tubulogenesis in matrigel, and intracellular signal transduction as assessed by kinase phosphorylation and expression of pro-angiogenic genes as measured by qRT-PCR. We further evaluated the angiogenic potential of recombinant peroxidasin in a chicken chorioallantoic membrane model. RNA silencing of endogenous hsPxd01 significantly reduced tube formation and cell migration, whereas supplementation by the recombinant peroxidase promoted tube formation in vitro and stimulated vascularization in vivo through its catalytic activity. Moreover, recombinant hsPxd01 promoted phosphorylation of Extracellular signal-Regulated Kinases (ERK1/2), Protein kinase B (Akt), and Focal Adhesion Kinase (FAK), and induced the expression of pro-angiogenic downstream genes: Platelet Derived Growth Factor Subunit B (PDGFB), endothelial-derived Heparin Binding EGF-like growth factor (HB-EGF), CXCL-1, Hairy-Related Transcription Factor 1 (HEY-1), DNA-binding protein inhibitor (ID-2), Snail Family Zinc Finger 1 (SNAI-1), as well as endogenous hsPxd01. However, peroxidasin silencing significantly reduced Akt and FAK phosphorylation but induced ERK1/2 activation after supplementation by recombinant hsPxd01. While hsPxd01 silencing significantly reduced expression of HEY-1, ID-2, and PDGFB, it did not affect expression of SNAI-1, HB-EGF, and CXCL-1 after supplementation by recombinant hsPxd01. Conclusion Our findings suggest a role of enzymatically active peroxidasin 1 as a pro-angiogenic peroxidase and a modulator of ERK1/2, Akt and FAK signalling.
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Affiliation(s)
- Hayfa Medfai
- Laboratory of Experimental Medicine (ULB 222 Unit), Faculté de Médecine, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Hôpital André Vésale, 706, Rue de Gozée, 6110 Montigny-le-Tilleul, Charleroi, Belgium.,Department of Biological Sciences, Laboratory of Functional Neurophysiology and Pathology, UR/11ES09, Université de Tunis El Manar, Faculté des Sciences de Tunis, 20 Rue de Tolède, 2092 Manar II, Tunis,Tunisia
| | - Alia Khalil
- Laboratory of Experimental Medicine (ULB 222 Unit), Faculté de Médecine, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Hôpital André Vésale, 706, Rue de Gozée, 6110 Montigny-le-Tilleul, Charleroi, Belgium
| | - Alexandre Rousseau
- Laboratory of Experimental Medicine (ULB 222 Unit), Faculté de Médecine, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Hôpital André Vésale, 706, Rue de Gozée, 6110 Montigny-le-Tilleul, Charleroi, Belgium
| | - Vincent Nuyens
- Laboratory of Experimental Medicine (ULB 222 Unit), Faculté de Médecine, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Hôpital André Vésale, 706, Rue de Gozée, 6110 Montigny-le-Tilleul, Charleroi, Belgium
| | - Martina Paumann-Page
- Division of Biochemistry, Department of Chemistry, BOKU, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Benjamin Sevcnikar
- Division of Biochemistry, Department of Chemistry, BOKU, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Paul G Furtmüller
- Division of Biochemistry, Department of Chemistry, BOKU, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Christian Obinger
- Division of Biochemistry, Department of Chemistry, BOKU, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Nicole Moguilevsky
- Laboratory of Experimental Medicine (ULB 222 Unit), Faculté de Médecine, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Hôpital André Vésale, 706, Rue de Gozée, 6110 Montigny-le-Tilleul, Charleroi, Belgium
| | - Olivier Peulen
- Metastasis Research Laboratory, Giga-Cancer, University of Liege, Quartier Hopital, Avenue de l'Hopital, 11, 4000 Liège, Belgium
| | - Michael Herfs
- Department of Pathology, Laboratory of Experimental Pathology, Giga-Cancer, University of Liege, Quartier Hopital, Avenue de l'Hopital, 11, 4000 Liège, Belgium
| | - Vincent Castronovo
- Metastasis Research Laboratory, Giga-Cancer, University of Liege, Quartier Hopital, Avenue de l'Hopital, 11, 4000 Liège, Belgium
| | - Mohamed Amri
- Department of Biological Sciences, Laboratory of Functional Neurophysiology and Pathology, UR/11ES09, Université de Tunis El Manar, Faculté des Sciences de Tunis, 20 Rue de Tolède, 2092 Manar II, Tunis,Tunisia
| | - Pierre Van Antwerpen
- Pharmacognosy, Bioanalysis and Drug Discovery and Analytical Platform of the Faculty of Pharmacy, Faculty of Pharmacy, Université Libre de Bruxelles, Campus de la plaine CP205/09, Boulevard du Triomphe, 1050 Bruxelles, Belgium; and
| | - Luc Vanhamme
- Laboratory of Molecular Parasitology, IBMM, Faculty of Sciences, Université Libre de Bruxelles, Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
| | - Karim Zouaoui Boudjeltia
- Laboratory of Experimental Medicine (ULB 222 Unit), Faculté de Médecine, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Hôpital André Vésale, 706, Rue de Gozée, 6110 Montigny-le-Tilleul, Charleroi, Belgium
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14
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Kumar NR, Khamar P, Shetty R, Sharma A, Shetty N, Pahuja N, Abilash VG, Jhanji V, Ghosh A, Mohan RR, Vangala RK, Ghosh A. Identification of novel predictive factors for post surgical corneal haze. Sci Rep 2019; 9:16980. [PMID: 31740714 PMCID: PMC6861263 DOI: 10.1038/s41598-019-53123-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 10/22/2019] [Indexed: 12/13/2022] Open
Abstract
Molecular factors altered in corneas that develop haze post refractive surgery have been described, but pre-existing factors that predispose clinically normal corneas to aberrant fibrosis post surgery and the role of the corneal epithelium remains unknown. We analyzed the global gene expression in epithelium collected intraoperatively from subjects undergoing photorefractive keratectomy. Subjects were grouped into those that developed haze 12 months post surgery (n = 6 eyes; haze predisposed) and those that did not develop haze in a similar follow up duration (n = 11 eyes; controls). Ontological analysis of 1100 upregulated and 1780 downregulated genes in the haze predisposed group revealed alterations in pathways associated with inflammation, wnt signaling, oxidative stress, nerve functions and extra cellular matrix remodeling. Novel factors such as PREX1, WNT3A, SOX17, GABRA1and PXDN were found to be significantly altered in haze predisposed subjects and those with active haze(n = 3), indicating their pro-fibrotic role. PREX1 was significantly upregulated in haze predisposed subjects. Ectopic expression of PREX1 in cultured human corneal epithelial cells enhanced their rate of wound healing while its ablation using shRNA reduced healing compared to matched controls. Recombinant TGFβ treatment in PREX1 overexpressing corneal cells led to enhanced αSMA expression and Vimentin phosphorylation while the converse was true for shPREX1 expressing cells. Our data identify a few novel factors in the corneal epithelium that may define a patient’s risk to developing post refractive corneal haze.
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Affiliation(s)
- Nimisha R Kumar
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, India.,Department of Biomedical Sciences, School of Bio Sciences and Technology, VIT, Vellore, India
| | - Pooja Khamar
- Cornea and Refractive Surgery Division, Narayana Nethralaya, Bangalore, India
| | - Rohit Shetty
- Cornea and Refractive Surgery Division, Narayana Nethralaya, Bangalore, India.,Singapore Eye Research Institute, Singapore, Singapore
| | | | - Naren Shetty
- Cornea and Refractive Surgery Division, Narayana Nethralaya, Bangalore, India
| | - Natasha Pahuja
- Cornea and Refractive Surgery Division, Narayana Nethralaya, Bangalore, India
| | | | - Vishal Jhanji
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Anuprita Ghosh
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, India
| | - Rajiv R Mohan
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO, 65211, USA.,Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, 65212, USA.,Harry S Truman Veterans' Memorial Hospital, Columbia, MO, 65201, USA
| | | | - Arkasubhra Ghosh
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, India. .,Singapore Eye Research Institute, Singapore, Singapore.
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15
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Zhang L, Zhang J, Ye Z, Manevich Y, Ball LE, Bethard JR, Jiang YL, Broome AM, Dalton AC, Wang GY, Townsend DM, Tew KD. Isoflavone ME-344 Disrupts Redox Homeostasis and Mitochondrial Function by Targeting Heme Oxygenase 1. Cancer Res 2019; 79:4072-4085. [PMID: 31227482 DOI: 10.1158/0008-5472.can-18-3503] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/12/2019] [Accepted: 06/17/2019] [Indexed: 12/19/2022]
Abstract
ME-344 is a second-generation isoflavone with unusual cytotoxic properties that is in clinical testing in cancer. To identify targets that contribute to its anticancer activity and therapeutic index, we used lung cancer cell lines that are naturally sensitive or resistant to ME-344. Drug-induced apoptosis was linked with enhanced levels of reactive oxygen species and this initiated a nuclear erythroid factor 2-like 2 signaling response, downstream of which, heme oxygenase 1 (HO-1) was also found to be time-dependently inhibited by ME-344. ME-344 specifically bound to, and altered, HO-1 structure and increased HO-1 translocation from the rough endoplasmic reticulum to mitochondria, but only in drug-sensitive cells. These effects did not occur in either drug-resistant or primary lung fibroblasts with lower HO-1 basal levels. HO-1 was confirmed as a drug target by using surface plasmon resonance technology and through interaction with a clickable ME-344 compound (M2F) and subsequent proteomic analyses, showing direct binding of ME-344 with HO-1. Proteomic analysis showed that clusters of mitochondrial proteins, including voltage-dependent anion-selective channels, were also impacted by ME-344. Human lung cancer biopsies expressed higher levels of Nrf2 and HO-1 compared with normal tissues. Overall, our data show that ME-344 inhibits HO-1 and impacts its mitochondrial translocation. Other mitochondrial proteins are also affected, resulting in interference in tumor cell redox homeostasis and mitochondrial function. These factors contribute to a beneficial therapeutic index and support continued clinical development of ME-344. SIGNIFICANCE: A novel cytotoxic isoflavone is shown to inhibit heme oxygenase, a desirable yet elusive target that disrupts redox homeostasis causing cell death.
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Affiliation(s)
- Leilei Zhang
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Jie Zhang
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Zhiwei Ye
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Yefim Manevich
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Lauren E Ball
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Jennifer R Bethard
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Yu-Lin Jiang
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Ann-Marie Broome
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina
| | - Annamarie C Dalton
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Gavin Y Wang
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Danyelle M Townsend
- Department of Pharmaceutical and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina.
| | - Kenneth D Tew
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, South Carolina.
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16
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Bánová Vulić R, Zdurienčíková M, Tyčiaková S, Benada O, Dubrovčáková M, Lakota J, Škultéty Ľ. Silencing of carbonic anhydrase I enhances the malignant potential of exosomes secreted by prostatic tumour cells. J Cell Mol Med 2019; 23:3641-3655. [PMID: 30916466 PMCID: PMC6484292 DOI: 10.1111/jcmm.14265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/14/2019] [Accepted: 02/26/2019] [Indexed: 12/17/2022] Open
Abstract
We report results showing that the silencing of carbonic anhydrase I (siCA1) in prostatic (PC3) tumour cells has a significant impact on exosome formation. An increased diameter, concentration and diversity of the produced exosomes were noticed as a consequence of this knock‐down. The protein composition of the exosomes' cargo was also altered. Liquid chromatography and mass spectrometry analyses identified 42 proteins significantly altered in PC3 siCA1 exosomes compared with controls. The affected proteins are mainly involved in metabolic processes, biogenesis, cell component organization and defense/immunity. Interestingly, almost all of them have been described as ‘enhancers' of tumour development through the promotion of cell proliferation, migration and invasion. Thus, our results indicate that the reduced expression of the CA1 protein enhances the malignant potential of PC3 cells.
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Affiliation(s)
| | | | | | - Oldřich Benada
- Institute of Microbiology of the CAS, v.v.i., Prague, Czech Republic
| | | | - Ján Lakota
- Biomedical Research Center SAS, Bratislava, Slovak Republic.,St. Elizabeth Cancer Institute, Bratislava, Slovak Republic.,Center of Experimental Medicine SAS, Bratislava, Slovak Republic
| | - Ľudovít Škultéty
- Biomedical Research Center SAS, Bratislava, Slovak Republic.,Institute of Microbiology of the CAS, v.v.i., Prague, Czech Republic
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17
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Briem E, Budkova Z, Sigurdardottir AK, Hilmarsdottir B, Kricker J, Timp W, Magnusson MK, Traustadottir GA, Gudjonsson T. MiR-203a is differentially expressed during branching morphogenesis and EMT in breast progenitor cells and is a repressor of peroxidasin. Mech Dev 2019; 155:34-47. [PMID: 30508578 DOI: 10.1016/j.mod.2018.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 11/01/2018] [Accepted: 11/23/2018] [Indexed: 12/12/2022]
Abstract
MicroRNAs regulate developmental events such as branching morphogenesis, epithelial to mesenchymal transition (EMT) and its reverse process mesenchymal to epithelial transition (MET). In this study, we performed small RNA sequencing of a breast epithelial progenitor cell line (D492), and its mesenchymal derivative (D492M) cultured in three-dimensional microenvironment. Among the most downregulated miRNAs in D492M was miR-203a, a miRNA that plays an important role in epithelial differentiation. Increased expression of miR-203a was seen in D492, concomitant with increased complexity of branching. When miR-203a was overexpressed in D492M, a partial reversion towards epithelial phenotype was seen. Gene expression analysis of D492M and D492MmiR-203a revealed peroxidasin, a collagen IV cross-linker, as the most significantly downregulated gene in D492MmiR-203a. Collectively, we demonstrate that miR-203a expression temporally correlates with branching morphogenesis and is suppressed in D492M. Overexpression of miR-203a in D492M induces a partial MET and reduces the expression of peroxidasin. Furthermore, we demonstrate that miR-203a is a novel repressor of peroxidasin. MiR-203-peroxidasin axis may be an important regulator in branching morphogenesis, EMT/MET and basement membrane remodeling.
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Affiliation(s)
- Eirikur Briem
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Zuzana Budkova
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Anna Karen Sigurdardottir
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Bylgja Hilmarsdottir
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland; Department of Tumor Biology, The Norwegian Radium Hospital, Oslo, Norway
| | - Jennifer Kricker
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Winston Timp
- Department of Biomedical Engineering, Johns Hopkins University, USA
| | - Magnus Karl Magnusson
- Department of Laboratory Hematology, Landspitali - University Hospital, Iceland; Department of Pharmacology and Toxicology, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Gunnhildur Asta Traustadottir
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland
| | - Thorarinn Gudjonsson
- Stem Cell Research Unit, Biomedical Center, Department of Anatomy, Faculty of Medicine, School of Health Sciences, University of Iceland, Iceland; Department of Laboratory Hematology, Landspitali - University Hospital, Iceland.
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18
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Hanmer KL, Mavri-Damelin D. Peroxidasin is a novel target of the redox-sensitive transcription factor Nrf2. Gene 2018; 674:104-114. [PMID: 29953917 DOI: 10.1016/j.gene.2018.06.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 06/22/2018] [Accepted: 06/24/2018] [Indexed: 12/30/2022]
Abstract
Peroxidasin (PXDN) facilitates peroxidative reactions via utilisation of hydrogen peroxide (H2O2) and has been shown to crosslink collagen IV through sulfilimine bond formation in the presence of hypohalous acids. Aberrant PXDN expression has been associated with kidney fibrosis, cancer, congenital eye defects and various cardiovascular disorders. Since PXDN expression is modified by H2O2, we hypothesized that a major antioxidant response transcription factor, nuclear factor erythroid 2-related factor 2 (Nrf2), may regulate PXDN expression. PXDN expression in response to H2O2 and the Nrf2-specific inducers, tert-butylhydroquinone (tBHQ) and sulforaphane (SFN), was determined by western blotting and immunofluorescence microscopy, in HeLa and HEK293 cells. Chromatin immunoprecipitation and luciferase reporter assays were used to investigate the regulation of PXDN by Nrf2. We observed elevated Nrf2 nuclear translocation and increased PXDN protein expression in response to H2O2, tBHQ and SFN, in both cell lines. We found that Nrf2 binds to and increases luciferase reporter gene expression from the PXDN promoter via a putative Nrf2-binding site. In summary, we show that PXDN is a novel target of the redox sensitive transcription factor Nrf2. This finding further highlights the role of PXDN in redox-related processes and compliments the currently understood pathophysiological functions of PXDN.
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Affiliation(s)
- Kerry L Hanmer
- The School of Molecular and Cell Biology, University of the Witwatersrand, Johannesburg, Private Bag X3, WITS 2050, South Africa
| | - Demetra Mavri-Damelin
- The School of Molecular and Cell Biology, University of the Witwatersrand, Johannesburg, Private Bag X3, WITS 2050, South Africa.
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19
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Triantafyllou EA, Georgatsou E, Mylonis I, Simos G, Paraskeva E. Expression of AGPAT2, an enzyme involved in the glycerophospholipid/triacylglycerol biosynthesis pathway, is directly regulated by HIF-1 and promotes survival and etoposide resistance of cancer cells under hypoxia. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:1142-1152. [PMID: 29908837 DOI: 10.1016/j.bbalip.2018.06.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/22/2018] [Accepted: 06/12/2018] [Indexed: 02/07/2023]
Abstract
Hypoxia inducible factor-1 (HIF-1) supports survival of normal cells under low oxygen concentration and cancer cells in the hypoxic tumor microenvironment. This involves metabolic reprogramming via upregulation of glycolysis, downregulation of oxidative phosphorylation and, less well documented, effects on lipid metabolism. To investigate the latter, we examined expression of relevant enzymes in cancer cells grown under hypoxia. We show that expression of acylglycerol-3-phosphate acyltransferase 2 (AGPAT2), also known as lysophosphatidic acid acyltransferase β (LPAATβ), was upregulated under hypoxia and this was impaired by siRNA-mediated knockdown of HIF-1α. Moreover, a sequence of the AGPAT2 gene promoter region, containing 6 putative Hypoxia Response Elements (HREs), activated transcription of a reporter gene under hypoxic conditions or in normoxic cells over-expressing HIF-1α. Chromatin immunoprecipitation experiments confirmed binding of HIF-1α to one of these HREs, mutation of which abolished hypoxic activation of the AGPAT2 promoter. Knockdown of AGPAT2 by siRNA reduced lipid droplet accumulation and cell viability under hypoxia and increased cancer cell sensitivity to the chemotherapeutic etoposide. In conclusion, our findings demonstrate that AGPAT2, which is mutated in patients with congenital generalized lipodystrophy and over-expressed in different types of cancer, is a direct transcriptional target of HIF-1, suggesting that upregulation of lipid storage by HIF-1 plays an important role in adaptation and survival of cancer cells under low oxygen conditions.
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Affiliation(s)
| | - Eleni Georgatsou
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Ilias Mylonis
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - George Simos
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Larissa, Greece; Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University, Montreal, Canada
| | - Efrosyni Paraskeva
- Laboratory of Physiology, Faculty of Medicine, University of Thessaly, Larissa, Greece.
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20
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Sturtzel C, Lipnik K, Hofer-Warbinek R, Testori J, Ebner B, Seigner J, Qiu P, Bilban M, Jandrositz A, Preisegger KH, Untergasser G, Gunsilius E, de Martin R, Kroll J, Hofer E. FOXF1 Mediates Endothelial Progenitor Functions and Regulates Vascular Sprouting. Front Bioeng Biotechnol 2018; 6:76. [PMID: 29963552 PMCID: PMC6010557 DOI: 10.3389/fbioe.2018.00076] [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: 01/30/2018] [Accepted: 05/24/2018] [Indexed: 01/26/2023] Open
Abstract
Endothelial colony forming cells (ECFC) or late blood outgrowth endothelial cells (BOEC) have been proposed to contribute to neovascularization in humans. Exploring genes characteristic for the progenitor status of ECFC we have identified the forkhead box transcription factor FOXF1 to be selectively expressed in ECFC compared to mature endothelial cells isolated from the vessel wall. Analyzing the role of FOXF1 by gain- and loss-of-function studies we detected a strong impact of FOXF1 expression on the particularly high sprouting capabilities of endothelial progenitors. This apparently relates to the regulation of expression of several surface receptors. First, FOXF1 overexpression specifically induces the expression of Notch2 receptors and induces sprouting. Vice versa, knock-down of FOXF1 and Notch2 reduces sprouting. In addition, FOXF1 augments the expression of VEGF receptor-2 and of the arterial marker ephrin B2, whereas it downmodulates the venous marker EphB4. In line with these findings on human endothelial progenitors, we further show that knockdown of FOXF1 in the zebrafish model alters, during embryonic development, the regular formation of vasculature by sprouting. Hence, these findings support a crucial role of FOXF1 for endothelial progenitors and connected vascular sprouting as it may be relevant for tissue neovascularization. It further implicates Notch2, VEGF receptor-2, and ephrin B2 as downstream mediators of FOXF1 functions.
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Affiliation(s)
- Caterina Sturtzel
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Karoline Lipnik
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Renate Hofer-Warbinek
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Julia Testori
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Bettina Ebner
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Jaqueline Seigner
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Ping Qiu
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Martin Bilban
- Department of Laboratory Medicine & Core Facility Genomics, Core Facilities, Medical University of Vienna, Vienna, Austria
| | | | - Karl-Heinz Preisegger
- VivoCell Biosolutions GmbH, Graz, Austria.,Institut für morphologische Analytik und Humangenetik, Graz, Austria
| | - Gerold Untergasser
- Laboratory for Tumor Biology & Angiogenesis, Medical University of Innsbruck, Innsbruck, Austria
| | - Eberhard Gunsilius
- Laboratory for Tumor Biology & Angiogenesis, Medical University of Innsbruck, Innsbruck, Austria
| | - Rainer de Martin
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Jens Kroll
- Department of Vascular Biology and Tumor Angiogenesis, European for Center for Angioscience, Medical Faculty Mannheim of Heidelberg University, Mannheim, Germany
| | - Erhard Hofer
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
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21
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High expression of PXDN is associated with poor prognosis and promotes proliferation, invasion as well as migration in ovarian cancer. Ann Diagn Pathol 2018; 34:161-165. [DOI: 10.1016/j.anndiagpath.2018.03.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 03/10/2018] [Indexed: 02/06/2023]
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22
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Sitole BN, Mavri-Damelin D. Peroxidasin is regulated by the epithelial-mesenchymal transition master transcription factor Snai1. Gene 2018; 646:195-202. [DOI: 10.1016/j.gene.2018.01.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/01/2017] [Accepted: 01/02/2018] [Indexed: 12/12/2022]
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23
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Jayachandran A, Prithviraj P, Lo PH, Walkiewicz M, Anaka M, Woods BL, Tan B, Behren A, Cebon J, McKeown SJ. Identifying and targeting determinants of melanoma cellular invasion. Oncotarget 2018; 7:41186-41202. [PMID: 27172792 PMCID: PMC5173051 DOI: 10.18632/oncotarget.9227] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 04/22/2016] [Indexed: 01/04/2023] Open
Abstract
Epithelial-to-mesenchymal transition is a critical process that increases the malignant potential of melanoma by facilitating invasion and dissemination of tumor cells. This study identified genes involved in the regulation of cellular invasion and evaluated whether they can be targeted to inhibit melanoma invasion. We identified Peroxidasin (PXDN), Netrin 4 (NTN4) and GLIS Family Zinc Finger 3 (GLIS3) genes consistently elevated in invasive mesenchymal-like melanoma cells. These genes and proteins were highly expressed in metastatic melanoma tumors, and gene silencing led to reduced melanoma invasion in vitro. Furthermore, migration of PXDN, NTN4 or GLIS3 siRNA transfected melanoma cells was inhibited following transplantation into the embryonic chicken neural tube compared to control siRNA transfected melanoma cells. Our study suggests that PXDN, NTN4 and GLIS3 play a functional role in promoting melanoma cellular invasion, and therapeutic approaches directed toward inhibiting the action of these proteins may reduce the incidence or progression of metastasis in melanoma patients.
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Affiliation(s)
- Aparna Jayachandran
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia.,School of Cancer Medicine, La Trobe University, Victoria, Australia.,The University of Queensland School of Medicine and the Gallipoli Medical Research Institute, Greenslopes Private Hospital, Brisbane, Queensland, Australia
| | - Prashanth Prithviraj
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia
| | - Pu-Han Lo
- Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia
| | - Marzena Walkiewicz
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia
| | - Matthew Anaka
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia
| | - Briannyn L Woods
- Department of Anatomy and Neuroscience, University of Melbourne, Victoria, Australia
| | - BeeShin Tan
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia
| | - Andreas Behren
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia.,School of Cancer Medicine, La Trobe University, Victoria, Australia
| | - Jonathan Cebon
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer and Wellness Centre, Heidelberg, Victoria, Australia.,Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia.,School of Cancer Medicine, La Trobe University, Victoria, Australia
| | - Sonja J McKeown
- Department of Anatomy and Neuroscience, University of Melbourne, Victoria, Australia
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24
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Irvin J, Ropelewski AJ, Perozich J. In silico analysis of heme oxygenase structural homologues identifies group-specific conservations. FEBS Open Bio 2017; 7:1480-1498. [PMID: 28979838 PMCID: PMC5623701 DOI: 10.1002/2211-5463.12275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/25/2017] [Accepted: 07/16/2017] [Indexed: 12/04/2022] Open
Abstract
Heme oxygenases (HO) catalyze the breakdown of heme, aiding the recycling of its components. Several other enzymes have homologous tertiary structures to HOs, while sharing little sequence homology. These homologues include thiaminases, the hydroxylase component of methane monooxygenases, and the R2 component of Class I ribonucleotide reductases (RNR). This study compared these structural homologues of HO, using a large number of protein sequences for each homologue. Alignment of a total of 472 sequences showed little sequence conservation, with no residues having conservation in more than 80% of aligned sequences and only five residues conserved in at least 60% of the sequences. Fourteen additional positions, most of which were critical for hydrophobic packing, displayed amino acid similarity of 60% or higher. Ten conserved sequence motifs were identified in HOs and RNRs. Phylogenetic analysis verified the existence of the four distinct groups of HO homologues, which were then analyzed by group entropy analysis to identify residues critical to the unique function of each enzyme. Other methods for determining functional residues were also performed. Several common index positions identified represent critical evolutionary changes that resulted in the unique function of each enzyme, suggesting potential targets for site‐directed mutagenesis. These positions included residues that coordinate ligands, form the active sites, and maintain enzyme structure. Enzymes Heme oxygenase (EC 1.14.14.18), methane monooxygenase (EC 1.14.13.25), ribonucleotide reductase (EC 1.17.4.1), thiaminase II (EC 3.5.99.2).
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Affiliation(s)
- Joseph Irvin
- Department of Biology Franciscan University of Steubenville OH USA
| | | | - John Perozich
- Department of Biology Franciscan University of Steubenville OH USA
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25
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HO-1 inhibits preadipocyte proliferation and differentiation at the onset of obesity via ROS dependent activation of Akt2. Sci Rep 2017; 7:40881. [PMID: 28102348 PMCID: PMC5244367 DOI: 10.1038/srep40881] [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: 10/06/2016] [Accepted: 12/12/2016] [Indexed: 01/15/2023] Open
Abstract
Excessive accumulation of white adipose tissue (WAT) is a hallmark of obesity. The expansion of WAT in obesity involves proliferation and differentiation of adipose precursors, however, the underlying molecular mechanisms remain unclear. Here, we used an unbiased transcriptomics approach to identify the earliest molecular underpinnings occuring in adipose precursors following a brief HFD in mice. Our analysis identifies Heme Oxygenase-1 (HO-1) as strongly and selectively being upregulated in the adipose precursor fraction of WAT, upon high-fat diet (HFD) feeding. Specific deletion of HO-1 in adipose precursors of Hmox1fl/flPdgfraCre mice enhanced HFD-dependent visceral adipose precursor proliferation and differentiation. Mechanistically, HO-1 reduces HFD-induced AKT2 phosphorylation via ROS thresholding in mitochondria to reduce visceral adipose precursor proliferation. HO-1 influences adipogenesis in a cell-autonomous way by regulating
events early in adipogenesis, during the process of mitotic clonal expansion, upstream of Cebpα and PPARγ. Similar effects on human preadipocyte proliferation and differentiation in vitro were observed upon modulation of HO-1 expression. This collectively renders HO-1 as an essential factor linking extrinsic factors (HFD) with inhibition of specific downstream molecular mediators (ROS & AKT2), resulting in diminished adipogenesis that may contribute to hyperplastic adipose tissue expansion.
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26
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Salati S, Zini R, Nuzzo S, Guglielmelli P, Pennucci V, Prudente Z, Ruberti S, Rontauroli S, Norfo R, Bianchi E, Bogani C, Rotunno G, Fanelli T, Mannarelli C, Rosti V, Salmoiraghi S, Pietra D, Ferrari S, Barosi G, Rambaldi A, Cazzola M, Bicciato S, Tagliafico E, Vannucchi AM, Manfredini R. Integrative analysis of copy number and gene expression data suggests novel pathogenetic mechanisms in primary myelofibrosis. Int J Cancer 2016; 138:1657-69. [PMID: 26547506 DOI: 10.1002/ijc.29920] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 10/15/2015] [Accepted: 10/23/2015] [Indexed: 12/27/2022]
Abstract
Primary myelofibrosis (PMF) is a Myeloproliferative Neoplasm (MPN) characterized by megakaryocyte hyperplasia, progressive bone marrow fibrosis, extramedullary hematopoiesis and transformation to Acute Myeloid Leukemia (AML). A number of phenotypic driver (JAK2, CALR, MPL) and additional subclonal mutations have been described in PMF, pointing to a complex genomic landscape. To discover novel genomic lesions that can contribute to disease phenotype and/or development, gene expression and copy number signals were integrated and several genomic abnormalities leading to a concordant alteration in gene expression levels were identified. In particular, copy number gain in the polyamine oxidase (PAOX) gene locus was accompanied by a coordinated transcriptional up-regulation in PMF patients. PAOX inhibition resulted in rapid cell death of PMF progenitor cells, while sparing normal cells, suggesting that PAOX inhibition could represent a therapeutic strategy to selectively target PMF cells without affecting normal hematopoietic cells' survival. Moreover, copy number loss in the chromatin modifier HMGXB4 gene correlates with a concomitant transcriptional down-regulation in PMF patients. Interestingly, silencing of HMGXB4 induces megakaryocyte differentiation, while inhibiting erythroid development, in human hematopoietic stem/progenitor cells. These results highlight a previously un-reported, yet potentially interesting role of HMGXB4 in the hematopoietic system and suggest that genomic and transcriptional imbalances of HMGXB4 could contribute to the aberrant expansion of the megakaryocytic lineage that characterizes PMF patients.
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Affiliation(s)
- Simona Salati
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Roberta Zini
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Simona Nuzzo
- Center for Genome Research, University of Modena and Reggio Emilia, via Campi N.287, Modena, 41125, Italy
| | - Paola Guglielmelli
- Department of Experimental and Clinical Medicine, Laboratorio Congiunto MMPC, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Valentina Pennucci
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Zelia Prudente
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Samantha Ruberti
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Sebastiano Rontauroli
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Ruggiero Norfo
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Elisa Bianchi
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
| | - Costanza Bogani
- Department of Experimental and Clinical Medicine, Laboratorio Congiunto MMPC, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Giada Rotunno
- Department of Experimental and Clinical Medicine, Laboratorio Congiunto MMPC, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Tiziana Fanelli
- Department of Experimental and Clinical Medicine, Laboratorio Congiunto MMPC, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Carmela Mannarelli
- Department of Experimental and Clinical Medicine, Laboratorio Congiunto MMPC, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Vittorio Rosti
- IRCCS Policlinico S.Matteo Foundation, Center for the Study of Myelofibrosis, Pavia, Italy
| | | | - Daniela Pietra
- Department of Hematology Oncology, IRCCS Policlinico San Matteo Foundation & University of Pavia, Pavia, Italy
| | - Sergio Ferrari
- Center for Genome Research, University of Modena and Reggio Emilia, via Campi N.287, Modena, 41125, Italy
| | - Giovanni Barosi
- IRCCS Policlinico S.Matteo Foundation, Center for the Study of Myelofibrosis, Pavia, Italy
| | | | - Mario Cazzola
- Department of Hematology Oncology, IRCCS Policlinico San Matteo Foundation & University of Pavia, Pavia, Italy
| | - Silvio Bicciato
- Center for Genome Research, University of Modena and Reggio Emilia, via Campi N.287, Modena, 41125, Italy
| | - Enrico Tagliafico
- Center for Genome Research, University of Modena and Reggio Emilia, via Campi N.287, Modena, 41125, Italy
| | - Alessandro M Vannucchi
- Department of Experimental and Clinical Medicine, Laboratorio Congiunto MMPC, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Rossella Manfredini
- Life Sciences Department University of Modena and Reggio Emilia, Centre for Regenerative Medicine, via Gottardi N.100, Modena, 41125, Italy
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27
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Tsaprouni LG, Yang TP, Bell J, Dick KJ, Kanoni S, Nisbet J, Viñuela A, Grundberg E, Nelson CP, Meduri E, Buil A, Cambien F, Hengstenberg C, Erdmann J, Schunkert H, Goodall AH, Ouwehand WH, Dermitzakis E, Spector TD, Samani NJ, Deloukas P. Cigarette smoking reduces DNA methylation levels at multiple genomic loci but the effect is partially reversible upon cessation. Epigenetics 2015; 9:1382-96. [PMID: 25424692 DOI: 10.4161/15592294.2014.969637] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Smoking is a major risk factor in many diseases. Genome wide association studies have linked genes for nicotine dependence and smoking behavior to increased risk of cardiovascular, pulmonary, and malignant diseases. We conducted an epigenome wide association study in peripheral-blood DNA in 464 individuals (22 current smokers and 263 ex-smokers), using the Human Methylation 450 K array. Upon replication in an independent sample of 356 twins (41 current and 104 ex-smokers), we identified 30 probes in 15 distinct loci, all of which reached genome-wide significance in the combined analysis P < 5 × 10(-8). All but one probe (cg17024919) remained significant after adjusting for blood cell counts. We replicated all 9 known loci and found an independent signal at CPOX near GPR15. In addition, we found 6 new loci at PRSS23, AVPR1B, PSEN2, LINC00299, RPS6KA2, and KIAA0087. Most of the lead probes (13 out of 15) associated with cigarette smoking, overlapped regions of open chromatin (FAIRE and DNaseI hypersensitive sites) or/and H3K27Ac peaks (ENCODE data set), which mark regulatory elements. The effect of smoking on DNA methylation was partially reversible upon smoking cessation for longer than 3 months. We report the first statistically significant interaction between a SNP (rs2697768) and cigarette smoking on DNA methylation (cg03329539). We provide evidence that the metSNP for cg03329539 regulates expression of the CHRND gene located circa 95 Kb downstream of the methylation site. Our findings suggest the existence of dynamic, reversible site-specific methylation changes in response to cigarette smoking , which may contribute to the extended health risks associated with cigarette smoking.
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Key Words
- AHRR, aryl-hydrocarbon receptor repressor
- ALPP, alkaline phosphatase, placental
- AVPR1B, arginine vasopressin
- CHRND
- CHRND, cholinergic nicotinic receptor
- COPD, chronic obstructive pulmonary disease
- CPOX
- CPOX, coproporphyrinogen oxidase
- DNA methylation
- DNMT, DNA methyltransferase
- EWAS, epigenome wide association study
- FDR, false discovery rate
- GWAS, genome-wide association studies
- PRSS23, serine protease 23
- PSEN2, presenilin-2 gene
- RPS6KA2, ribosomal protein S6 kinase
- epigenome-wide screen
- gene network
- metQTL, methylation quantitative trait loci
- metQTLs
- rs2697768
- smoking
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28
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Motovali-Bashi M, Hamidy M. Association between GT-repeat polymorphism at heme oxygenase-1 gene promoter and gastric cancer and metastasis. Tumour Biol 2015; 36:4757-62. [PMID: 25956277 DOI: 10.1007/s13277-015-3125-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/19/2015] [Indexed: 11/28/2022] Open
Abstract
HO-1 gene encodes heme oxygenase-1 enzyme that catalyzes the oxidation of heme to carbon monoxide (CO). It has also been suggested that cells could be protected by the enzyme against stress. A (GT) n dinucleotide repeat at HO-1 promoter is a polymorphic region and modulates gene transcription and associated with some of diseases. In this study, length of polymorphism GT tandem repeat has been determined and classified into two alleles short (≤28) and long (≥29). In present study, association between GT-repeat polymorphism at heme oxygenase-1 gene promoter and increased risk of gastric cancer and metastasis was investigated. Blood samples from 100 control individuals and 60 gastric cancer cases had taken. Genotypic frequencies of (GT) n repeat for samples were determined using PCR technique and polyacrylamide PAGE electrophoresis. At final, higher frequency alleles were sequenced. Our results show that S-allele is significantly higher in cases in comparison with control groups (p = 0/000, odds ratio (OR) = 4/154). It has been shown that individuals with S/S and S/L genotypes are at high risk of having gastric cancer (p = 0/000, OR = 3/789). Statistic data show association between SS genotype and risk of gastric cancer metastasis (p = 0.017, OR = 3.889). But, there is no significant association between clinicopathological characteristics of the patients and risk of gastric cancer metastasis (p > 0.05). Significant association was found between short allele (SS + SL genotypes) and risk of gastric cancer, and also strong association was found between SS genotype and risk of gastric cancer metastasis.
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Affiliation(s)
- M Motovali-Bashi
- Genetic Division, Biology Department, Faculty of Sciences, University of Isfahan, Isfahan, Islamic Republic of Iran,
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29
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Cell signaling events differentiate ER-negative subtypes from ER-positive breast cancer. Med Oncol 2015; 32:142. [DOI: 10.1007/s12032-015-0565-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 03/10/2015] [Indexed: 10/23/2022]
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30
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She T, Zhao C, Feng J, Wang L, Qu L, Fang K, Cai S, Shou C. Sarsaparilla (Smilax Glabra Rhizome) extract inhibits migration and invasion of cancer cells by suppressing TGF-β1 pathway. PLoS One 2015; 10:e0118287. [PMID: 25742000 PMCID: PMC4351248 DOI: 10.1371/journal.pone.0118287] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 01/12/2015] [Indexed: 02/06/2023] Open
Abstract
Sarsaparilla, also known as Smilax Glabra Rhizome (SGR), was shown to modulate immunity, protect against liver injury, lower blood glucose and suppress cancer. However, its effects on cancer cell adhesion, migration and invasion were unclear. In the present study, we found that the supernatant of water-soluble extract from SGR (SW) could promote adhesion, inhibit migration and invasion of HepG2, MDA-MB-231 and T24 cells in vitro, as well as suppress metastasis of MDA-MB-231 cells in vivo. Results of F-actin and vinculin dual staining showed the enhanced focal adhesion in SW-treated cells. Microarray analysis indicated a repression of TGF-β1 signaling by SW treatment, which was verified by real-time RT-PCR of TGF-β1-related genes and immunoblotting of TGFBR1 protein. SW was also shown to antagonize TGF-β1-promoted cell migration. Collectively, our study revealed a new antitumor function of Sarsaparilla in counteracting invasiveness of a subset of cancer cells by inhibiting TGF-β1 signaling.
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Affiliation(s)
- Tiantian She
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Chuanke Zhao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Junnan Feng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Lixin Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Like Qu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Ke Fang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Shaoqing Cai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Chengchao Shou
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
- * E-mail:
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Sturtzel C, Testori J, Schweighofer B, Bilban M, Hofer E. The transcription factor MEF2C negatively controls angiogenic sprouting of endothelial cells depending on oxygen. PLoS One 2014; 9:e101521. [PMID: 24988463 PMCID: PMC4079651 DOI: 10.1371/journal.pone.0101521] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 06/09/2014] [Indexed: 11/18/2022] Open
Abstract
The MADS box transcription factor MEF2C has been detected by us to be upregulated by the angiogenic factors VEGF-A and bFGF in endothelial cells. We have here investigated its potential role for angiogenesis. MEF2C was surprisingly found to strongly inhibit angiogenic sprouting, whereas a dominant negative mutant rather induced sprouting. The factor mainly affected migratory processes of endothelial cells, but not proliferation. In gene profiling experiments we delineated the alpha-2-macroglobulin gene to be highly upregulated by MEF2C. Further data confirmed that MEF2C in endothelial cells indeed induces alpha-2-macroglobulin mRNA as well as the secretion of alpha-2-macroglobulin and that conditioned supernatants of cells overexpressing MEF2C inhibit sprouting. Alpha-2-macroglobulin mediates, at least to a large extent, the inhibitory effects of MEF2C as is shown by knockdown of alpha-2-macroglobulin mRNA by lentiviral shRNA expression which reduces the inhibitory effect. However, under hypoxic conditions the VEGF-A/bFGF-mediated upregulation of MEF2C is reduced and the production of alpha-2-macroglobulin largely abolished. Taken together, this suggests that the MEF2C/alpha-2-macroglobulin axis functions in endothelial cells as a negative feed-back mechanism that adapts sprouting activity to the oxygen concentration thus diminishing inappropriate and excess angiogenesis.
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Affiliation(s)
- Caterina Sturtzel
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Julia Testori
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Bernhard Schweighofer
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Martin Bilban
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Erhard Hofer
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
- * E-mail:
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32
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Tarasenko N, Cutts SM, Phillips DR, Berkovitch-Luria G, Bardugo-Nissim E, Weitman M, Nudelman A, Rephaeli A. A novel valproic acid prodrug as an anticancer agent that enhances doxorubicin anticancer activity and protects normal cells against its toxicity in vitro and in vivo. Biochem Pharmacol 2014; 88:158-68. [DOI: 10.1016/j.bcp.2014.01.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 01/13/2014] [Accepted: 01/15/2014] [Indexed: 12/16/2022]
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33
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Na HK, Surh YJ. Oncogenic potential of Nrf2 and its principal target protein heme oxygenase-1. Free Radic Biol Med 2014; 67:353-65. [PMID: 24200599 DOI: 10.1016/j.freeradbiomed.2013.10.819] [Citation(s) in RCA: 348] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 10/28/2013] [Accepted: 10/29/2013] [Indexed: 10/26/2022]
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) is an essential component of cellular defense against a vast variety of endogenous and exogenous insults, including oxidative stress. Nrf2 acts as a master switch in the circuits upregulating the expression of various stress-response proteins, especially heme oxygenase-1 (HO-1). Paradoxically, however, recent studies have demonstrated oncogenic functions of Nrf2 and its major target protein HO-1. Levels of Nrf2 and HO-1 are elevated in many different types of human malignancies, which may facilitate the remodeling of the tumor microenvironment making it advantageous for the autonomic growth of cancer cells, metastasis, angiogenesis, and tolerance to chemotherapeutic agents and radiation and photodynamic therapy. In this context, the cellular stress response or cytoprotective signaling mediated via the Nrf2-HO-1 axis is hijacked by cancer cells for their growth advantage and survival of anticancer treatment. Therefore, Nrf2 and HO-1 may represent potential therapeutic targets in the management of cancer. This review highlights the roles of Nrf2 and HO-1 in proliferation of cancer cells, their tolerance/resistance to anticancer treatments, and metastasis or angiogenesis in tumor progression.
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Affiliation(s)
- Hye-Kyung Na
- Department of Food & Nutrition, College of Human Ecology, Sungshin Women's University, Seoul 142-732, South Korea
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Institute, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea; Department of Molecular Medicine and Biopharmaceutical Science, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea; Cancer Research Institute, Seoul National University, Seoul 110-744, South Korea.
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Wang SL, Wu R. Progress in research of hypoxia and angiogenesis in pancreatic cancer. Shijie Huaren Xiaohua Zazhi 2013; 21:3217-3221. [DOI: 10.11569/wcjd.v21.i30.3217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
Pancreatic cancer remains one of the most lethal solid tumors of the gastrointestinal tract. Hypoxia is the driving force behind angiogenesis in cancer. Angiogenesis is an essential factor for tumors to grow and metastasize. Studies in recent years have demonstrated that hypoxia and angiogenesis play important roles in the pathogenesis of pancreatic cancer. In this paper we will review recent advances in understanding the role of hypoxia and angiogenesis in the pathogenesis of pancreatic cancer.
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Yoshii Y, Furukawa T, Oyama N, Hasegawa Y, Kiyono Y, Nishii R, Waki A, Tsuji AB, Sogawa C, Wakizaka H, Fukumura T, Yoshii H, Fujibayashi Y, Lewis JS, Saga T. Fatty acid synthase is a key target in multiple essential tumor functions of prostate cancer: uptake of radiolabeled acetate as a predictor of the targeted therapy outcome. PLoS One 2013; 8:e64570. [PMID: 23741342 PMCID: PMC3669310 DOI: 10.1371/journal.pone.0064570] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Accepted: 04/15/2013] [Indexed: 11/18/2022] Open
Abstract
Fatty acid synthase (FASN) expression is elevated in several cancers, and this over-expression is associated with poor prognosis. Inhibitors of FASN, such as orlistat, reportedly show antitumor effects against cancers that over-express FASN, making FASN a promising therapeutic target. However, large variations in FASN expression levels in individual tumors have been observed, and methods to predict FASN-targeted therapy outcome before treatment are required to avoid unnecessary treatment. In addition, how FASN inhibition affects tumor progression remains unclear. Here, we showed the method to predict FASN-targeted therapy outcome using radiolabeled acetate uptake and presented mechanisms of FASN inhibition with human prostate cancer cell lines, to provide the treatment strategy of FASN-targeted therapy. We revealed that tumor uptake of radiolabeled acetate reflected the FASN expression levels and sensitivity to FASN-targeted therapy with orlistat in vitro and in vivo. FASN-targeted therapy was noticeably effective against tumors with high FASN expression, which was indicated by high acetate uptake. To examine mechanisms, we established FASN knockdown prostate cancer cells by transduction of short-hairpin RNA against FASN and investigated the characteristics by analyses on morphology and cell behavior and microarray-based gene expression profiling. FASN inhibition not only suppressed cell proliferation but prevented pseudopodia formation and suppressed cell adhesion, migration, and invasion. FASN inhibition also suppressed genes involved in production of intracellular second messenger arachidonic acid and androgen hormones, both of which promote tumor progression. Collectively, our data demonstrated that uptake of radiolabeled acetate is a useful predictor of FASN-targeted therapy outcome. This suggests that [1-(11)C]acetate positron emission tomography (PET) could be a powerful tool to accomplish personalized FASN-targeted therapy by non-invasive visualization of tumor acetate uptake and selection of responsive tumors. FASN-targeted therapy could be an effective treatment to suppress multiple steps related to tumor progression in prostate cancers selected by [1-(11)C]acetate PET.
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Affiliation(s)
- Yukie Yoshii
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan.
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Gassling V, Hampe J, Açil Y, Braesen JH, Wiltfang J, Häsler R. Disease-associated miRNA-mRNA networks in oral lichen planus. PLoS One 2013; 8:e63015. [PMID: 23723971 PMCID: PMC3664564 DOI: 10.1371/journal.pone.0063015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 03/27/2013] [Indexed: 12/20/2022] Open
Abstract
Background A large number of pathophysiological mechanisms are regulated by microRNAs (miRNAs), which represent a new class of posttranscriptional regulators of gene expression. To date, little is known about their role in oral lichen planus (OLP), a chronic inflammatory mucocutaneous disease of unknown etiology which is being discussed as a potentially premalignant condition of oropharyngeal cancer. The aim of the present investigation was to assess the pathophysiological impact of miRNAs and to determine regulatory miRNA networks which are directly linked to potentially disease-associated target transcripts in OLP. Methods Native tissue samples were collected from the oral mucosa of seven patients with OLP. The control group was composed of native tissue from elective oral surgery. The mRNA profiling was performed using the Affymetrix Human Gene 1.0 ST Array while miRNA profiling was performed using the microRNA Galaxy Array. Subsequent validation of initial results was carried out using TaqMan real time PCR. Results We identified 24 differentially regulated miRNA and 2,694 regulated transcripts. Linking the miRNAs to their potential targets we found 11 potential miRNA-mRNA pairs, of which several are functionally related to premalignant as well as to inflammatory events. Conclusions Our data shows miRNA associated with transcripts which are regulated when comparing OLP patients with healthy control individuals. This suggests that miRNAs may potentially regulate disease-relevant transcripts, proposing the concept of therapeutic interventions based on miRNAs.
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Affiliation(s)
- Volker Gassling
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jochen Hampe
- Department of Internal Medicine I, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- Institute of Clinical Molecular Biology, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Yahya Açil
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jan Hinrich Braesen
- Department of Pathology, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Robert Häsler
- Institute of Clinical Molecular Biology, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- * E-mail:
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Bauckman KA, Haller E, Flores I, Nanjundan M. Iron modulates cell survival in a Ras- and MAPK-dependent manner in ovarian cells. Cell Death Dis 2013; 4:e592. [PMID: 23598404 PMCID: PMC3668627 DOI: 10.1038/cddis.2013.87] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 02/01/2013] [Accepted: 02/19/2013] [Indexed: 02/07/2023]
Abstract
Ovarian cancer is a leading cause of cancer death in women in the United States. While the majority of ovarian cancers are serous, some rarer subtypes (i.e. clear cell) are often associated with endometriosis, a benign gynecological disease. Iron is rich in the cyst fluid of endometriosis-associated ovarian cancers and induces persistent oxidative stress. The role of iron, an essential nutrient involved in multiple cellular functions, in normal ovarian cell survival and ovarian cancer remains unclear. Iron, presented as ferric ammonium citrate (FAC), dramatically inhibits cell survival in ovarian cancer cell types associated with Ras mutations, while it is without effect in immortalized normal ovarian surface epithelial (T80) and endometriotic epithelial cells (lacking Ras mutations). Interestingly, FAC induced changes in cytoplasmic vacuolation concurrently with increases in LC3-II levels (an autophagy marker); these changes occurred in an ATG5/ATG7-dependent, beclin-1/hVps34-independent, and Ras-independent manner. Knockdown of autophagy mediators in HEY ovarian cancer cells reversed FAC-induced LC3-II levels, but there was little effect on reversing the cell death response. Intriguingly, transmission electron microscopy of FAC-treated T80 cells demonstrated abundant lysosomes (confirmed using Lysotracker) rich in iron particles, which occurred in a Ras-independent manner. Although the mitogen-activated protein kinase (MAPK) inhibitor, U0126, reversed FAC-induced LC3-II/autophagic punctae and lysosomes in a Ras-independent manner, it was remarkable that U0126 reversed cell death in malignant ovarian cells associated with Ras mutations. Moreover, FAC increased heme oxygenase-1 expression in H-Ras-overexpressing T80 cells, which was associated with increased cell death when overexpressed in T80 cells. Disruption of intracellular iron levels, via chelation of intracellular iron (deferoxamine), was also detrimental to malignant ovarian cell survival; thus, homeostatic intracellular iron levels are essential for cell survival. Collectively, our results implicate iron in modulating cell death in a Ras- and MAPK-dependent manner in ovarian cancer cells.
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Affiliation(s)
- K A Bauckman
- Moffitt Cancer Center and Research Institute, Cancer Biology Program, Tampa, FL, USA
| | - E Haller
- Department of Integrative Biology, University of South Florida, Tampa, FL, USA
| | - I Flores
- Departments of Microbiology, Obstetrics and Gynecology, Ponce School of Medicine and Health Sciences, Ponce, Puerto Rico
| | - M Nanjundan
- Moffitt Cancer Center and Research Institute, Cancer Biology Program, Tampa, FL, USA
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, USA
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38
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Piepoli A, Palmieri O, Maglietta R, Panza A, Cattaneo E, Latiano A, Laczko E, Gentile A, Carella M, Mazzoccoli G, Ancona N, Marra G, Andriulli A. The expression of leucine-rich repeat gene family members in colorectal cancer. Exp Biol Med (Maywood) 2012; 237:1123-8. [PMID: 23045723 DOI: 10.1258/ebm.2012.012042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This study was conducted to evaluate the association of the leucine-rich repeat (LRR) gene family with colorectal cancer (CRC). The expression of members of the LRR gene family were analyzed in 17 CRC specimens and in 59 healthy colorectal tissues by using Human Exon1.0ST microarray, and in 25 CRC specimens and 32 healthy colorectal tissues by U133Plus2.0 microarray. An association was found for 25 genes belonging to the plant-specific (PS) class of LRR genes (P = 0.05 for Exon1.0 ST and P = 0.04 for U133Plus2.0). In both data-sets, in CRC, we found down-regulation of SHOC2 (P < 0.00003) and LRRC28 (P < 0.01) and up-regulation of LRSAM1 (P < 0.000001), while up-regulation of MFHAS1 (P = 0.0005) and down-regulation of WDFY3 (P = 0.026) were found only in the Exon1.0 ST data-set. The PS LLR gene class encodes proteins that activate immune cells and might play a key role in programmed cell death and autophagy. SHOC2 and LRRC28 genes involved in RAS-mediated signaling, which hinders nutrient deprivation-induced autophagy, might be a possible link between the negative control of autophagy and tumorigenesis.
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Affiliation(s)
- Ada Piepoli
- Laboratory and Division of Gastroenterology, IRCCS Casa Sollievo della Sofferenza Hospital, Viale Cappuccini n.1, San Giovanni Rotondo (FG), Italy.
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Soudi M, Zamocky M, Jakopitsch C, Furtmüller PG, Obinger C. Molecular evolution, structure, and function of peroxidasins. Chem Biodivers 2012; 9:1776-93. [PMID: 22976969 PMCID: PMC3533774 DOI: 10.1002/cbdv.201100438] [Citation(s) in RCA: 45] [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: 12/28/2011] [Indexed: 12/02/2022]
Abstract
Peroxidasins represent the subfamily 2 of the peroxidase-cyclooxygenase superfamily and are closely related to chordata peroxidases (subfamily 1) and peroxinectins (subfamily 3). They are multidomain proteins containing a heme peroxidase domain with high homology to human lactoperoxidase that mediates one- and two-electron oxidation reactions. Additional domains of the secreted and glycosylated metalloproteins are type C-like immunoglobulin domains, typical leucine-rich repeats, as well as a von Willebrand factor C module. These are typical motifs of extracellular proteins that mediate protein-protein interactions. We have reconstructed the phylogeny of this new family of oxidoreductases and show the presence of four invertebrate clades as well as one vertebrate clade that includes also two different human representatives. The variability of domain assembly in the various clades was analyzed, as was the occurrence of relevant catalytic residues in the peroxidase domain based on the knowledge of catalysis of the mammalian homologues. Finally, the few reports on expression, localization, enzymatic activity, and physiological roles in the model organisms Drosophila melanogaster, Caenorhabditis elegans, and Homo sapiens are critically reviewed. Roles attributed to peroxidasins include antimicrobial defense, extracellular matrix formation, and consolidation at various developmental stages. Many research questions need to be solved in future, including detailed biochemical/physical studies and elucidation of the three dimensional structure of a model peroxidasin as well as the relation and interplay of the domains and the in vivo functions in various organisms including man.
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Affiliation(s)
- Monika Soudi
- Department of Chemistry, Division of Biochemistry, Vienna Institute of BioTechnology at BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna
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40
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Agarwal AK. Lysophospholipid acyltransferases: 1-acylglycerol-3-phosphate O-acyltransferases. From discovery to disease. Curr Opin Lipidol 2012; 23:290-302. [PMID: 22777291 DOI: 10.1097/mol.0b013e328354fcf4] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
PURPOSE OF REVIEW Over the past several years, many more isoforms for the same enzymes, specifically for 1-acylglycerol-3-phosphate O-acyltransferases (AGPATs), have been cloned and studied. In this review, we summarize their biochemical features and discuss their functional role. RECENT FINDINGS The most significant role of these AGPATs appeared from our observation of AGPAT2 in the biology of adipose tissue (adipocytes) in humans and mice. Other isoforms are shown to be implicated in lung, reproductive and cardiac muscle function and in the cause of cancer. In-vitro substrate specificities of these AGPATs also suggest the in-vivo role of these AGPATs in remodeling of several of the glycerophospholipids. SUMMARY Despite significant progress in understanding the role of these AGPATs, much is still to be discovered in terms of how each of these AGPATs function in the presence or absence of other AGPATs and what their functional role might be.
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Affiliation(s)
- Anil K Agarwal
- Division of Nutrition and Metabolic Diseases, Department of Internal Medicine, Center for Human Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.
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Wu SY, Lee YR, Huang CC, Li YZ, Chang YS, Yang CY, Wu JD, Liu YW. Curcumin-induced heme oxygenase-1 expression plays a negative role for its anti-cancer effect in bladder cancers. Food Chem Toxicol 2012; 50:3530-6. [PMID: 22771723 DOI: 10.1016/j.fct.2012.06.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 06/13/2012] [Accepted: 06/26/2012] [Indexed: 01/17/2023]
Abstract
Some phytochemicals with the characteristics of cytotoxicity and anti-metastasis has generated intense interest among the invasive cancer study. Curcumin, one of these anti-cancer phytochemicals, has been reported to induce the cytoprotective enzyme heme oxygenase-1 expression. Since heme oxygenase-1 has been suggested to enhance cancer cell invasion, we investigated the anti-invasive effect of curcumin when heme oxygenase-1 was knocked down in vitro, and the heme oxygenase-1 expression after curcumin treatment in vivo. Curcumin inhibited cell viability and the MMP-2/9 activities of human bladder cancer cells. At 10 μM, curcumin inhibited cell viability and cell invasive activity by 15% and 40%, respectively. Ten micrometer curcumin increased the intracellular reactive oxygen species concentration and heme oxygenase-1 protein and mRNA expression in bladder cancer cells. The anti-invasive activity of curcumin was elevated when heme oxygenase-1 was knocked down by siRNA or inhibited by pharmacological inhibitor. In vivo, curcumin induced heme oxygenase-1 protein expression in the lung tissue of murine lung metastasis tumor model and in the bladder tissue of murine orthotopic bladder tumor model. Taken together, our data suggest that curcumin-induced heme oxygenase-1 attenuates the anti-invasive effect of curcumin in cancer therapy, and co-treatment by heme oxygenase-1 inhibitor enhances the anti-invasive activity of curcumin.
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Affiliation(s)
- Szu-Yuan Wu
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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Lin PH, Lan WM, Chau LY. TRC8 suppresses tumorigenesis through targeting heme oxygenase-1 for ubiquitination and degradation. Oncogene 2012; 32:2325-34. [PMID: 22689053 DOI: 10.1038/onc.2012.244] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The TRC8 gene, which was previously shown to be disrupted by a 3;8 chromosomal translocation in hereditary kidney cancer, encodes for an endoplasmic reticulum-resident E3 ligase. Studies have shown that TRC8 exhibits a tumor-suppressive effect through its E3-ligase activity. Therefore, the identification of its physiological substrates will provide important insights into the molecular mechanism underlying TRC8-mediated tumor suppression. Here we show that TRC8 targets heme oxygenase-1 (HO-1), an antioxidant enzyme highly expressed in various cancers, for ubiquitination and degradation. Ectopic TRC8 expression suppresses HO-1-induced cancer cell growth and migration/invasion. Conversely, HO-1 depletion reduced the tumorigenic and invasive capacities promoted by TRC8 knockdown. HO-1 downregulation in renal carcinoma cells induces a mitotic delay at G2/M phase by increasing the intracellular reactive oxygen species and the DNA-damage-induced checkpoint activation. These results highlight the tumorigenic role of HO-1 and the importance of TRC8-mediated HO-1 degradation in the control of cancer growth.
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Affiliation(s)
- P-H Lin
- Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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43
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Ostano P, Bione S, Belgiovine C, Chiodi I, Ghimenti C, Scovassi AI, Chiorino G, Mondello C. Cross-analysis of gene and miRNA genome-wide expression profiles in human fibroblasts at different stages of transformation. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2012; 16:24-36. [PMID: 22321013 DOI: 10.1089/omi.2011.0049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We have developed a cellular system constituted of human telomerase immortalized fibroblasts that gradually underwent neoplastic transformation during propagation in culture. We exploited this cellular system to investigate gene and miRNA transcriptional programs in cells at different stages of propagation, representing five different phases along the road to transformation, from non-transformed cells up to tumorigenic and metastatic ones. Here we show that gene and miRNA expression profiles were both able to divide cells according to their transformation phase. We identified more than 1,700 genes whose expression was highly modulated in cells at at least one propagation stage and we found that the number of modulated genes progressively increased at successive stages of transformation. These genes identified processes significantly deregulated in tumorigenic cells, such as cell differentiation, cell movement and extracellular matrix remodeling, cell cycle and apoptosis, together with upregulation of several cancer testis antigens. Alterations in cell cycle, apoptosis, and cancer testis antigen expression were particular hallmarks of metastatic cells. A parallel deregulation of a panel of 43 miRNAs strictly connected to the p53 and c-Myc pathways and with oncogenic/oncosuppressive functions was also found. Our results indicate that cen3tel cells can be a useful model for human fibroblast neoplastic transformation, which appears characterized by complex and peculiar alterations involving both genetic and epigenetic reprogramming, whose elucidation could provide useful insights into regulatory networks underlying cancerogenesis.
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Affiliation(s)
- Paola Ostano
- Fondazione Edo ed Elvo Tempia Valenta, Biella, Italy
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44
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Kurban G, Gallie BL, Leveridge M, Evans A, Rushlow D, Matevski D, Gupta R, Finelli A, Jewett MAS. Needle core biopsies provide ample material for genomic and proteomic studies of kidney cancer: observations on DNA, RNA, protein extractions and VHL mutation detection. Pathol Res Pract 2011; 208:22-31. [PMID: 22177731 DOI: 10.1016/j.prp.2011.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 11/02/2011] [Accepted: 11/03/2011] [Indexed: 10/14/2022]
Abstract
The use of needle biopsies in basic research is increasing, and our study provides a comprehensive analysis of their adequacy in genomic and proteomic studies of kidney cancer. Frozen clear cell renal cell carcinoma (ccRCC) needle core biopsies and sections from core biopsies embedded in optimal cutting temperature (OCT) compound were used to extract DNA, RNA and protein. Their integrity was determined using genomic and proteomic analyses. VHL mutation testing was performed on ccRCC biopsies and corresponding tumors using bulk and laser capture microdissection (LCM) extractions for comparison. Adequate amounts of good quality DNA (5.8-13.3 μg/whole core, 0.6-2.7 μg/20 sections), RNA (2.9-11.9 μg/whole core, 0.5-1.3 μg/20 sections) and protein (137.4-444 μg/whole core, 39.9-74.1 μg/20 sections) were obtained from whole core and frozen sections of ccRCC needle biopsies, respectively. We observed VHL sequence mutations in 75% of ccRCC tumors and, in most cases, the same mutations were detected in both tumors and corresponding biopsies. Mutations observed by bulk extractions from tumors and biopsies were also detected by LCM without significant differences between both methodologies. ccRCC needle biopsies provide ample material for genomic and proteomic studies of kidney cancer. They are good representatives of their corresponding tumors for VHL mutation detection using both bulk and LCM extractions. LCM does not increase sensitivity of VHL mutation detection.
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Affiliation(s)
- Ghada Kurban
- Campbell Family Cancer Research Institute, Ontario Cancer Institute, Princess Margaret Hospital, University Health Network, University of Toronto, Toronto, Canada
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45
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Bahmani P, Hassanshahi G, Halabian R, Roushandeh AM, Jahanian-Najafabadi A, Roudkenar MH. The expression of heme oxygenase-1 in human-derived cancer cell lines. IRANIAN JOURNAL OF MEDICAL SCIENCES 2011; 36:260-5. [PMID: 23115410 PMCID: PMC3470283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Revised: 06/27/2011] [Accepted: 07/23/2011] [Indexed: 11/13/2022]
Abstract
BACKGROUND Heme oxygenase-1 (HO-1) is a cytoprotective and antiapoptotic enzyme, which has been involved in maintaining cellular homeostasis, and plays an important protective role by modulating oxidative injury. Up-regulation of (HO-1) has contributed to tumorogenicity of some cancers. In this study we investigated the expression pattern of the HO-1, in five different human-derived cancer cell lines with high incidence in Iran. METHODS Total cell RNA were extracted from HepG2 (hepato carcinoma), A549 (lung adenocarcinoma), MCF-7 (breast cancer), K562 (myeloid leukemia) and LS174T (colon cancer) cell lines. Human embryonic kidney (HEK293) cell line was used as a control. cDNAs were synthesized and expression of HO-1 was examined using RT-PCR. RESULTS The expression of HO-1 was not detected in the control cell line (HEK293), but it was observed to express following ultraviolet (UV) exposure indicating that HO-1 is not constantly expressed. The examined cancer cell lines constitutively expressed different variety of HO-1 on mRNA level. Strong expression of HO-1 was observed in HepG2, MCF-7 and A549 cells. A moderate expression of HO-1 was observed in K562 cells, and LS174T cells showed no expression of HO-1. CONCLUSION Heme oxygenase-1 could be considered as a new marker in the diagnosis of some cancers, especially hepatomacarcinoma. Our results also suggest that up-regulation of HO-1 may contribute to tumorogenicity of some cancers. Therefore, the combination of gene-silencing effect of HO-1 and chemotherapy might be considered as a new modality for the treatment of cancers in which the expression HO-1 is up-regulated.
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Affiliation(s)
- Parisa Bahmani
- Research Center, Iranian Blood Transfusion Organization, Tehran, Iran
| | | | - Raheleh Halabian
- Research Center, Iranian Blood Transfusion Organization, Tehran, Iran
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Hoermann G, Cerny-Reiterer S, Herrmann H, Blatt K, Bilban M, Gisslinger H, Gisslinger B, Müllauer L, Kralovics R, Mannhalter C, Valent P, Mayerhofer M. Identification of oncostatin M as a JAK2 V617F-dependent amplifier of cytokine production and bone marrow remodeling in myeloproliferative neoplasms. FASEB J 2011; 26:894-906. [PMID: 22051730 DOI: 10.1096/fj.11-193078] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The JAK2 mutation V617F is detectable in a majority of patients with Philadelphia chromosome-negative myeloproliferative neoplasms (MPNs). Enforced expression of JAK2 V617F in mice induces myeloproliferation and bone marrow (BM) fibrosis, suggesting a causal role for the JAK2 mutant in the pathogenesis of MPNs. However, little is known about mechanisms and effector molecules contributing to JAK2 V617F-induced myeloproliferation and fibrosis. We show that JAK2 V617F promotes expression of oncostatin M (OSM) in neoplastic myeloid cells. Correspondingly, OSM mRNA levels were increased in the BM of patients with MPNs (median 287% of ABL, range 22-1450%) compared to control patients (median 59% of ABL, range 12-264%; P < 0.0001). OSM secreted by JAK2 V617F+ cells stimulated growth of fibroblasts and microvascular endothelial cells and induced the production of angiogenic and profibrogenic cytokines (HGF, VEGF, and SDF-1) in BM fibroblasts. All effects of MPN cell-derived OSM were blocked by a neutralizing anti-OSM antibody, whereas the production of OSM in MPN cells was suppressed by a pharmacologic JAK2 inhibitor or RNAi-mediated knockdown of JAK2. In summary, JAK2 V617F-mediated up-regulation of OSM may contribute to fibrosis, neoangiogenesis, and the cytokine storm observed in MPNs, suggesting that OSM might serve as a novel therapeutic target molecule in these neoplasms.
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Affiliation(s)
- Gregor Hoermann
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
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Khan K, Rudkin A, Parry D, Burdon K, McKibbin M, Logan C, Abdelhamed Z, Muecke J, Fernandez-Fuentes N, Laurie K, Shires M, Fogarty R, Carr I, Poulter J, Morgan J, Mohamed M, Jafri H, Raashid Y, Meng N, Piseth H, Toomes C, Casson R, Taylor G, Hammerton M, Sheridan E, Johnson C, Inglehearn C, Craig J, Ali M. Homozygous mutations in PXDN cause congenital cataract, corneal opacity, and developmental glaucoma. Am J Hum Genet 2011; 89:464-73. [PMID: 21907015 PMCID: PMC3169830 DOI: 10.1016/j.ajhg.2011.08.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 07/29/2011] [Accepted: 08/09/2011] [Indexed: 11/17/2022] Open
Abstract
Anterior segment dysgenesis describes a group of heterogeneous developmental disorders that affect the anterior chamber of the eye and are associated with an increased risk of glaucoma. Here, we report homozygous mutations in peroxidasin (PXDN) in two consanguineous Pakistani families with congenital cataract-microcornea with mild to moderate corneal opacity and in a consanguineous Cambodian family with developmental glaucoma and severe corneal opacification. These results highlight the diverse ocular phenotypes caused by PXDN mutations, which are likely due to differences in genetic background and environmental factors. Peroxidasin is an extracellular matrix-associated protein with peroxidase catalytic activity, and we confirmed localization of the protein to the cornea and lens epithelial layers. Our findings imply that peroxidasin is essential for normal development of the anterior chamber of the eye, where it may have a structural role in supporting cornea and lens architecture as well as an enzymatic role as an antioxidant enzyme in protecting the lens, trabecular meshwork, and cornea against oxidative damage.
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Affiliation(s)
- Kamron Khan
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
- Eye Department, St James University Hospital, Leeds LS9 7TF, UK
| | - Adam Rudkin
- Department of Ophthalmology, Flinders University, Flinders Medical Centre, Adelaide, SA 5042, Australia
| | - David A. Parry
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
| | - Kathryn P. Burdon
- Department of Ophthalmology, Flinders University, Flinders Medical Centre, Adelaide, SA 5042, Australia
| | - Martin McKibbin
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
- Eye Department, St James University Hospital, Leeds LS9 7TF, UK
| | - Clare V. Logan
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
| | - Zakia I.A. Abdelhamed
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
- Anatomy and Embryology Department, Al-Azhar University, Nasr City District 7, Cairo, Egypt
| | - James S. Muecke
- South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
| | | | - Kate J. Laurie
- Department of Ophthalmology, Flinders University, Flinders Medical Centre, Adelaide, SA 5042, Australia
| | - Mike Shires
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
| | - Rhys Fogarty
- Department of Ophthalmology, Flinders University, Flinders Medical Centre, Adelaide, SA 5042, Australia
| | - Ian M. Carr
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
| | | | | | - Moin D. Mohamed
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
- St Thomas' Hospital, London SE1 7EH, UK
| | - Hussain Jafri
- Gene Technology Laboratories 146/1, Shadman Jail Road, Lahore 54000, Pakistan
| | - Yasmin Raashid
- Department of Obstetrics and Gynaecology, King Edward Medical University, Lahore 54000, Pakistan
| | - Ngy Meng
- Preah Ang Duong Eye Hospital, Phnom Penh 855, Cambodia
| | - Horm Piseth
- Fred Hollows Foundation, Phnom Penh 518, Cambodia
| | - Carmel Toomes
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
| | - Robert J. Casson
- South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
| | | | - Michael Hammerton
- South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
| | | | | | | | - Jamie E. Craig
- Department of Ophthalmology, Flinders University, Flinders Medical Centre, Adelaide, SA 5042, Australia
| | - Manir Ali
- Leeds Institute of Molecular Medicine, Leeds LS9 7TF, UK
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