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Fernández C, Giraldo R. Modulation of the Aggregation of the Prion-like Protein RepA-WH1 by Chaperones in a Cell-Free Expression System and in Cytomimetic Lipid Vesicles. ACS Synth Biol 2018; 7:2087-2093. [PMID: 30125497 DOI: 10.1021/acssynbio.8b00283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The accumulation of aggregated forms of proteins as toxic species is associated with fatal diseases such as amyloid proteinopathies. With the purpose of deconstructing the molecular mechanisms of these type of diseases through a Synthetic Biology approach, we are working with a model bacterial prion-like protein, RepA-WH1, expressed in a cell-free system. Our findings show that the Hsp70 chaperone from Escherichia coli, together with its Hsp40 and nucleotide exchange factor cochaperones, modulates the aggregation of the prion-like protein in the cell-free system. Moreover, we observe the same effect by reconstructing the aggregation process inside lipid vesicles. Chaperones reduce the number of aggregates formed, matching previous findings in vivo. We expect that the in vitro approach reported here will help to achieve better understanding and control of amyloid proteinopathies.
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Affiliation(s)
- Cristina Fernández
- Department of Cellular and Molecular Biology , Centro de Investigaciones Biológicas-CSIC , Madrid, E28040 , Spain
| | - Rafael Giraldo
- Department of Cellular and Molecular Biology , Centro de Investigaciones Biológicas-CSIC , Madrid, E28040 , Spain
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Siegler BH, Uhle F, Lichtenstern C, Arens C, Bartkuhn M, Weigand MA, Weiterer S. Impact of human sepsis on CCCTC-binding factor associated monocyte transcriptional response of Major Histocompatibility Complex II components. PLoS One 2018; 13:e0204168. [PMID: 30212590 PMCID: PMC6136812 DOI: 10.1371/journal.pone.0204168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 09/03/2018] [Indexed: 12/12/2022] Open
Abstract
Background Antigen presentation on monocyte surface to T-cells by Major Histocompatibility Complex, Class II (MHC-II) molecules is fundamental for pathogen recognition and efficient host response. Accordingly, loss of Major Histocompatibility Complex, Class II, DR (HLA-DR) surface expression indicates impaired monocyte functionality in patients suffering from sepsis-induced immunosuppression. Besides the impact of Class II Major Histocompatibility Complex Transactivator (CIITA) on MHC-II gene expression, X box-like (XL) sequences have been proposed as further regulatory elements. These elements are bound by the DNA-binding protein CCCTC-Binding Factor (CTCF), a superordinate modulator of gene transcription. Here, we hypothesized a differential interaction of CTCF with the MHC-II locus contributing to an altered monocyte response in immunocompromised septic patients. Methods We collected blood from six patients diagnosed with sepsis and six healthy controls. Flow cytometric analysis was used to identify sepsis-induced immune suppression, while inflammatory cytokine levels in blood were determined via ELISA. Isolation of CD14++ CD16—monocytes was followed by (i) RNA extraction for gene expression analysis and (ii) chromatin immunoprecipitation to assess the distribution of CTCF and chromatin modifications in selected MHC-II regions. Results Compared to healthy controls, CD14++ CD16—monocytes from septic patients with immune suppression displayed an increased binding of CTCF within the MHC-II locus combined with decreased transcription of CIITA gene. In detail, enhanced CTCF enrichment was detected on the intergenic sequence XL9 separating two subregions coding for MHC-II genes. Depending on the relative localisation to XL9, gene expression of both regions was differentially affected in patients with sepsis. Conclusion Our experiments demonstrate for the first time that differential CTCF binding at XL9 is accompanied by uncoupled MHC-II expression as well as transcriptional and epigenetic alterations of the MHC-II regulator CIITA in septic patients. Overall, our findings indicate a sepsis-induced enhancer blockade mediated by variation of CTCF at the intergenic sequence XL9 in altered monocytes during immunosuppression.
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Affiliation(s)
- Benedikt Hermann Siegler
- Department of Anesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg, Baden-Württemberg, Germany
| | - Florian Uhle
- Department of Anesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg, Baden-Württemberg, Germany
| | - Christoph Lichtenstern
- Department of Anesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg, Baden-Württemberg, Germany
| | - Christoph Arens
- Department of Anesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg, Baden-Württemberg, Germany
| | - Marek Bartkuhn
- Institute for Genetics, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 58–62, Giessen, Hessen, Germany
| | - Markus Alexander Weigand
- Department of Anesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg, Baden-Württemberg, Germany
| | - Sebastian Weiterer
- Department of Anesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, Heidelberg, Baden-Württemberg, Germany
- * E-mail:
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Relat J, Come J, Perez B, Camps P, Muñoz-Torrero D, Badia A, Gimenez-Llort L, Clos MV. Neuroprotective Effects of the Multitarget Agent AVCRI104P3 in Brain of Middle-Aged Mice. Int J Mol Sci 2018; 19:ijms19092615. [PMID: 30181440 PMCID: PMC6165152 DOI: 10.3390/ijms19092615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/14/2018] [Accepted: 08/15/2018] [Indexed: 11/16/2022] Open
Abstract
Molecular factors involved in neuroprotection are key in the design of novel multitarget drugs in aging and neurodegeneration. AVCRI104P3 is a huprine derivative that exhibits potent inhibitory effects on human AChE, BuChE, and BACE-1 activities, as well as on AChE-induced and self-induced Aβ aggregation. More recently, cognitive protection and anxiolytic-like effects have also been reported in mice treated with this compound. Now, we have assessed the ability of AVCRI104P3 (0.43 mg/kg, 21 days) to modulate the levels of some proteins involved in the anti-apoptotic/apoptotic processes (pAkt1, Bcl2, pGSK3β, p25/p35), inflammation (GFAP and Iba1) and neurogenesis in C57BL/6 mice. The effects of AVCRI104P3 on AChE-R/AChE-S isoforms have been also determined. We have observed that chronic treatment of C57BL/6 male mice with AVCRI104P3 results in neuroprotective effects, increasing significantly the levels of pAkt1 and pGSK3β in the hippocampus and Bcl2 in both hippocampus and cortex, but slightly decreasing synaptophysin levels. Astrogliosis and neurogenic markers GFAP and DCX remained unchanged after AVCRI104P3 treatment, whereas microgliosis was found to be significantly decreased pointing out the involvement of this compound in inflammatory processes. These results suggest that the neuroprotective mechanisms that are behind the cognitive and anxiolytic effects of AVCRI104P3 could be partly related to the potentiation of some anti-apoptotic and anti-inflammatory proteins and support the potential of AVCRI104P3 for the treatment of brain dysfunction associated with aging and/or dementia.
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Affiliation(s)
- Julia Relat
- Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain.
- Department of Pharmacology, Therapeutic and Toxicology, Autonomous University of Barcelona, 08193 Barcelona, Spain.
| | - Julio Come
- Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain.
- Department of Pharmacology, Therapeutic and Toxicology, Autonomous University of Barcelona, 08193 Barcelona, Spain.
| | - Belen Perez
- Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain.
- Department of Pharmacology, Therapeutic and Toxicology, Autonomous University of Barcelona, 08193 Barcelona, Spain.
| | - Pelayo Camps
- Laboratory of Pharmaceutical Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona, 08028 Barcelona, Spain.
| | - Diego Muñoz-Torrero
- Laboratory of Pharmaceutical Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona, 08028 Barcelona, Spain.
| | - Albert Badia
- Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain.
- Department of Pharmacology, Therapeutic and Toxicology, Autonomous University of Barcelona, 08193 Barcelona, Spain.
| | - Lydia Gimenez-Llort
- Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain.
- Department of Psychiatry and Forensic Medicine, Autonomous University of Barcelona, 08193 Barcelona, Spain.
| | - M Victòria Clos
- Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain.
- Department of Pharmacology, Therapeutic and Toxicology, Autonomous University of Barcelona, 08193 Barcelona, Spain.
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Pancer Z, Amemiya CT, Ehrhardt GRA, Ceitlin J, Gartland GL, Cooper MD. Pillars Article: Somatic Diversification of Variable Lymphocyte Receptors in the Agnathan Sea Lamprey. Nature. 2004. 430: 174-180. J Immunol 2018; 201:1336-1342. [PMID: 30127063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Porokh V, Vaňhara P, Bárta T, Jurečková L, Bohačiaková D, Pospíšilová V, Mináriková D, Holubcová Z, Pelková V, Souček K, Hampl A. Soluble Cripto-1 Induces Accumulation of Supernumerary Centrosomes and Formation of Aberrant Mitoses in Human Embryonic Stem Cells. Stem Cells Dev 2018; 27:1077-1084. [PMID: 29882484 DOI: 10.1089/scd.2018.0017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Chromosomal instability evoked by abnormalities in centrosome numbers has been traditionally considered as a hallmark of aberrant, typically cancerous or senescent cells. We have reported previously that pristine human embryonic stem cells (hESC) suffer from high frequency of supernumerary centrosomes and hence may be prone to undergo abnormal mitotic divisions. We have also unraveled that this phenomenon of multicentrosomal mitoses vanishes with prolonged time in culture and with initiation of differentiation, and it is strongly affected by the culture substratum. In this study, we report for the first time that Cripto-1 protein (teratocarcinoma-derived growth factor 1, epidermal growth factor-Cripto/FRL-1/Cryptic) produced by hESC represents a factor capable of inducing formation of supernumerary centrosomes in cultured hESC. Elimination of Cripto-1 signaling on the other hand restores the normal number of centrosomes in hESC. Linking the secretory phenotype of hESC to the centrosomal metabolism may help to develop better strategies for propagation of stable and safe bioindustrial and clinical grade cultures of hESC. From a broader point of view, it may lead to unravelling Cripto-1 as a micro-environmental factor contributing to adverse cell behaviors in vivo.
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Affiliation(s)
- Volodymyr Porokh
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Petr Vaňhara
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
- 2 Center of Biomolecular and Cellular Engineering (CBCE), International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Tomáš Bárta
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Lucie Jurečková
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Dáša Bohačiaková
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Veronika Pospíšilová
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Daniela Mináriková
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Zuzana Holubcová
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Vendula Pelková
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
| | - Karel Souček
- 2 Center of Biomolecular and Cellular Engineering (CBCE), International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
- 3 Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic
| | - Aleš Hampl
- 1 Department of Histology and Embryology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
- 2 Center of Biomolecular and Cellular Engineering (CBCE), International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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Wan G, Ji L, Xia W, Cheng L, Zhang Y. Screening genes associated with elevated neutrophil‑to‑lymphocyte ratio in chronic heart failure. Mol Med Rep 2018; 18:1415-1422. [PMID: 29901123 PMCID: PMC6072186 DOI: 10.3892/mmr.2018.9132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/04/2018] [Indexed: 02/06/2023] Open
Abstract
Neutrophil‑to‑lymphocyte ratio (NLR) is commonly considered a useful prognostic index for many cardiovascular diseases; however, it has limited sensitivity and specificity. Factors associated with elevated NLR may aid in the prediction of prognosis with heart failure (HF) in combination with NLR. The present study sought to identify decisive factors associated with NLR in HF patients and investigate their association with elevated NLR. The gene expression profile for blood samples from 197 individuals with chronic heart failure (CHF), with corresponding hematological parameters and clinical data were obtained from the public database, GSE77343. Differentially expressed genes (DEGs) were identified, and Gene Ontology and pathway enrichment analyses were performed. The protein‑protein interaction network was constructed with the Search Tool for the Retrieval of Interacting Genes along with Cytoscape. Receiver operating characteristic curves for predictive power, sensitivity and specificity were constructed. The present study identified specific associated DEGs by using Pearson linear correlation and logistic regression analysis. A mean NLR of 3.96 was determined as the cutoff value in the analysis. In total, 31 genes were initially identified as DEGs associated with elevated NLR. They were mainly enriched in neutrophil activation and neutrophil mediated immunity, in fluid shear stress and atherosclerosis, and transcriptional misregulation in cancer. Three focused DEGs, solute carrier family 22 member 4 (SLC22A4), interleukin‑1 receptor 2 (IL1R2) and vanin 3 (VNN3), were finally revealed to be independently associated with elevated NLR in CHF patients. The present study demonstrated that the three genes SLC22A4, IL1R2 and VNN3 may be independently associated with elevated NLR in CHF patients as potential decisive factors of NLR.
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Affiliation(s)
- Guoxing Wan
- Department of Cardiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Cardiovascular Laboratory, Centre for Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Lihua Ji
- Department of Cardiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Cardiovascular Laboratory, Centre for Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Wenbin Xia
- Department of Cardiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Cardiovascular Laboratory, Centre for Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Lan Cheng
- Department of Cardiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Cardiovascular Laboratory, Centre for Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Yonggang Zhang
- Department of Cardiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Cardiovascular Laboratory, Centre for Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
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Weber F, Breustedt D, Schlicht S, Meyer CA, Niewoehner J, Ebeling M, Freskgard PO, Bruenker P, Singer T, Reth M, Iglesias A. First Infusion Reactions are Mediated by FcγRIIIb and Neutrophils. Pharm Res 2018; 35:169. [PMID: 29951887 PMCID: PMC6021477 DOI: 10.1007/s11095-018-2448-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/15/2018] [Indexed: 12/17/2022]
Abstract
Purpose Administration of therapeutic monoclonal antibodies (mAbs) is frequently accompanied by severe first infusion reactions (FIR). The mechanism driving FIR is still unclear. This study aimed to investigate the cellular and molecular mechanisms causing FIR in humanized mouse models and their potential for evaluating FIR risk in patients. Methods Mice humanized for Fc gamma receptors (FcγRs) were generated by recombination-mediated genomic replacement. Body temperature, cytokine release and reactive oxygen species (ROS) were measured to assess FIR to mAbs. Results Infusion of human mAb specific for mouse transferrin receptor (HamTfR) into FcγR-humanized mice, produced marked transient hypothermia accompanied by an increase in inflammatory cytokines KC and MIP-2, and ROS. FIR were dependent on administration route and Fc-triggered effector functions mediated by neutrophils. Human neutrophils also induced FIR in wild type mice infused with HamTfR. Specific knock-in mice demonstrated that human FcγRIIIb on neutrophils was both necessary and sufficient to cause FIR. FcγRIIIb-mediated FIR was abolished by depleting neutrophils or blocking FcγRIIIb with CD11b antibodies. Conclusions Human FcγRIIIb and neutrophils are primarily responsible for triggering FIR. Clinical strategies to prevent FIR in patients should focus on this pathway and may include transient depletion of neutrophils or blocking FcγRIIIb with specific mAbs. Electronic supplementary material The online version of this article (10.1007/s11095-018-2448-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Felix Weber
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
| | - Daniel Breustedt
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
- Novartis Pharma AG, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Sonja Schlicht
- Small Molecule Research, Therapeutic Modalities, Roche Innovation Center Basel, Basel, Switzerland
| | - Claas A Meyer
- Small Molecule Research, Therapeutic Modalities, Roche Innovation Center Basel, Basel, Switzerland
| | - Jens Niewoehner
- Large Molecule Research, Therapeutic Modalities, Roche Innovation Center Munich, Munich, Germany
| | - Martin Ebeling
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
| | - Per-Ola Freskgard
- Neuroscience, Ophthalmology and Rare Diseases Discovery and Translational Area, Roche Innovation Center Basel, Basel, Switzerland
| | - Peter Bruenker
- Large Molecule Research, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Thomas Singer
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland
| | - Michael Reth
- Institute of Biology III (Molecular Immunology), University of Freiburg, Freiburg im Breisgau, Germany
| | - Antonio Iglesias
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Bldg 93 Room 5.10, Grenzacherstrasse 124, 4070, Basel, CH, Switzerland.
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Yang J, Li W, Zhang Z, Shen J, Zhang N, Yang M, Yang M, Yu Y. PSCArs2294008 T polymorphism increases the risk of bladder cancer in Bai, Dai, and Han ethnicity in China and a potential mechanism. Genes Genomics 2018; 40:531-541. [PMID: 29892961 DOI: 10.1007/s13258-018-0653-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/09/2018] [Indexed: 01/31/2023]
Abstract
The aim of this study is to make a comparative evaluation on association of PSCArs2294008 C/T polymorphism with the risk of bladder cancer in Bai, Dai, and Han people in China. A potential mechanism of the T allele risk was also investigated. T allele increased the occurring risk of bladder cancer in Han (OR 1.34; 95% CI 1.17-1.69), Dai, (OR 1.33; 95% CI 1.12-1.70), and Bai (OR 1.14; 95% CI 1.08-1.57) people. T genotype was also observed to associate with invasive bladder cancer in all the three populations (Bai, OR 1.15, 95% CI 1.07-1.87; Dai, OR 1.17, 95% CI 1.05-2.23; Han, OR 1.22, 95% CI 1.10-2.09). PSCA m-RNA levels in T genotype bladder cancer tissues were significantly lower than those in C genotype. An enhancement of PSCA m-RNA level by over-expressing C or T genotype in bladder cancer cells both decreased the cell proliferation and migration, but not affected cell cycle. The increased cell apoptasis due to the over-expression of the two variants was observed. Those change of cell proliferation, migration, and apoptasis was more remarkable in over-expressed C genotype cells than those in over-expressed T genotype. T genotype was genetically high risk to the occurrence of bladder cancer. The decreased PSCA m-RNA levels were involved in the progress of bladder cancer. T allele takes more responsibility for PSCA m-RNA down-regulation to promote cell proliferation and migration and hinder cell apoptasis, thus leading to a higher risk.
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Affiliation(s)
- Junfeng Yang
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Wei Li
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Zhuorui Zhang
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Jie Shen
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Ningnan Zhang
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Min Yang
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Maolin Yang
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China
| | - Yanhong Yu
- Department of Urology, First People's Hospital of Yunnan Province, Kunming, 650032, Yunnan, People's Republic of China.
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Sanyal S, Siriwardena AK, Byers R. Measurement of indicator genes using global complementary DNA (cDNA) amplification, by polyadenylic acid reverse transcriptase polymerase chain reaction (poly A RT-PCR): A feasibility study using paired samples from tissue and ductal juice in patients undergoing pancreatoduodenectomy. Pancreatology 2018; 18:458-462. [PMID: 29574096 DOI: 10.1016/j.pan.2018.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/25/2018] [Accepted: 03/19/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The aim of this study is to compare gene expression profiles in RNA isolated from pancreatic ductal juice with the RNA expression profiles of the same genes from matched intra-operative tissue samples from pancreatic tumours. METHODS Intra-operative sampling of pancreatic juice and collection of matched tissue samples was undertaken in patients undergoing pancreatoduodenectomy for clinically suspected pancreatic cancer and a precursor lesion, main-duct intraductal papillary mucinous neoplasm. RNA was isolated and Poly A PCR was used to globally amplify the RNA. Real-time polymerase chain reaction (RT-PCR) was used to measure expression levels of 17 genes selected from microarray studies. Spearman's rank correlation test was used to examine the relationship of gene expression between pancreatic juice and tissue. The study was approved by Regional Ethics Committee. RESULTS Mesothelin (MSLN) showed significant correlation (p < 0.008) in expression levels between paired pancreatic juice and tissue samples in pancreas cancer. In intraductal papillary mucinous neoplasms (IPMN), Matrix Metalloproteinase 7 (MMP7), showed significant correlation (p < 0.01) in the expression levels between paired pancreatic juice and tissue samples. CONCLUSION This study confirms that RNA analysis of paired pancreatic juice and tissue samples and establishment of cDNA using poly A PCR is technically feasible. Application of the technique to non-invasively obtained pancreatic juice during endoscopic assessment of tumours and the use of gene arrays of cancer indicator genes are the next steps in development of this technique.
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Affiliation(s)
- Sudip Sanyal
- Regional Hepato-pancreato-biliary Unit, Manchester Royal Infirmary, Manchester, UK
| | - Ajith K Siriwardena
- Regional Hepato-pancreato-biliary Unit, Manchester Royal Infirmary, Manchester, UK; Faculty of Medicine, University of Manchester, Manchester, UK.
| | - Richard Byers
- Faculty of Medicine, University of Manchester, Manchester, UK; University Department of Histopathology, Manchester Royal Infirmary, Manchester, UK
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210
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Zhu Q, Yan L, Liu Q, Zhang C, Wei L, Hu Q, Preus L, Clay-Gilmour AI, Onel K, Stram DO, Pooler L, Sheng X, Haiman CA, Zhu X, Spellman SR, Pasquini M, McCarthy PL, Liu S, Hahn T, Sucheston-Campbell LE. Exome chip analyses identify genes affecting mortality after HLA-matched unrelated-donor blood and marrow transplantation. Blood 2018; 131:2490-2499. [PMID: 29610366 PMCID: PMC5981168 DOI: 10.1182/blood-2017-11-817973] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 03/20/2018] [Indexed: 02/07/2023] Open
Abstract
Although survival outcomes have significantly improved, up to 40% of patients die within 1 year of HLA-matched unrelated-donor blood and marrow transplantation (BMT). To identify non-HLA genetic contributors to mortality after BMT, we performed the first exome-wide association study in the DISCOVeRY-BMT cohorts using the Illumina HumanExome BeadChip. This study includes 2473 patients with acute myeloid leukemia, acute lymphoblastic leukemia, or myelodysplastic syndrome and 2221 10/10 HLA-matched donors treated from 2000 to 2011. Single-variant and gene-level analyses were performed on overall survival (OS), transplantation-related mortality (TRM), and disease-related mortality (DRM). Genotype mismatches between recipients and donors in a rare nonsynonymous variant of testis-expressed gene TEX38 significantly increased risk of TRM, which was more dramatic when either the recipient or donor was female. Using the SKAT-O test to evaluate gene-level effects, variant genotypes of OR51D1 in recipients were significantly associated with OS and TRM. In donors, 4 (ALPP, EMID1, SLC44A5, LRP1), 1 (HHAT), and 2 genes (LYZL4, NT5E) were significantly associated with OS, TRM, and DRM, respectively. Inspection of NT5E crystal structures showed 4 of the associated variants affected the enzyme structure and likely decreased the catalytic efficiency of the enzyme. Further confirmation of these findings and additional functional studies may provide individualized risk prediction and prognosis, as well as alternative donor selection strategies.
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Affiliation(s)
- Qianqian Zhu
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY
| | - Li Yan
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY
| | - Qian Liu
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY
| | - Chi Zhang
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE
| | - Lei Wei
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY
| | - Qiang Hu
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY
| | - Leah Preus
- College of Pharmacy, The Ohio State University, Columbus, OH
| | | | - Kenan Onel
- Department of Pediatric Hematology/Oncology, Cohen Children's Medical Center, Northwell Health, Manhasset, NY
| | - Daniel O Stram
- Preventive Medicine, University of Southern California, Los Angeles, CA
| | - Loreall Pooler
- Preventive Medicine, University of Southern California, Los Angeles, CA
| | - Xin Sheng
- Preventive Medicine, University of Southern California, Los Angeles, CA
| | | | - Xiaochun Zhu
- Center for International Blood and Marrow Transplant Research, Medical College of Wisconsin, Milwaukee, WI
| | - Stephen R Spellman
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Marcelo Pasquini
- Center for International Blood and Marrow Transplant Research, Medical College of Wisconsin, Milwaukee, WI
| | - Philip L McCarthy
- Blood and Marrow Transplant Program, Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY; and
| | - Song Liu
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY
| | - Theresa Hahn
- Blood and Marrow Transplant Program, Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY; and
| | - Lara E Sucheston-Campbell
- College of Pharmacy, The Ohio State University, Columbus, OH
- College of Veterinary Medicine, The Ohio State University, Columbus, OH
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211
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Sirois AR, Deny DA, Baierl SR, George KS, Moore SJ. Fn3 proteins engineered to recognize tumor biomarker mesothelin internalize upon binding. PLoS One 2018; 13:e0197029. [PMID: 29738555 PMCID: PMC5940182 DOI: 10.1371/journal.pone.0197029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 03/20/2018] [Indexed: 11/19/2022] Open
Abstract
Mesothelin is a cell surface protein that is overexpressed in numerous cancers, including breast, ovarian, lung, liver, and pancreatic tumors. Aberrant expression of mesothelin has been shown to promote tumor progression and metastasis through interaction with established tumor biomarker CA125. Therefore, molecules that specifically bind to mesothelin have potential therapeutic and diagnostic applications. However, no mesothelin-targeting molecules are currently approved for routine clinical use. While antibodies that target mesothelin are in development, some clinical applications may require a targeting molecule with an alternative protein fold. For example, non-antibody proteins are more suitable for molecular imaging and may facilitate diverse chemical conjugation strategies to create drug delivery complexes. In this work, we engineered variants of the fibronectin type III domain (Fn3) non-antibody protein scaffold to bind to mesothelin with high affinity, using directed evolution and yeast surface display. Lead engineered Fn3 variants were solubly produced and purified from bacterial culture at high yield. Upon specific binding to mesothelin on human cancer cell lines, the engineered Fn3 proteins internalized and co-localized to early endosomes. To our knowledge, this is the first report of non-antibody proteins engineered to bind mesothelin. The results validate that non-antibody proteins can be engineered to bind to tumor biomarker mesothelin, and encourage the continued development of engineered variants for applications such as targeted diagnostics and therapeutics.
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Affiliation(s)
- Allison R. Sirois
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
- Picker Engineering Program, Smith College, Northampton, Massachusetts, United States of America
| | - Daniela A. Deny
- Department of Biochemistry, Smith College, Northampton, Massachusetts, United States of America
| | - Samantha R. Baierl
- Picker Engineering Program, Smith College, Northampton, Massachusetts, United States of America
| | - Katia S. George
- Department of Biochemistry, Smith College, Northampton, Massachusetts, United States of America
| | - Sarah J. Moore
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
- Picker Engineering Program, Smith College, Northampton, Massachusetts, United States of America
- Department of Biological Sciences, Smith College, Northampton, Massachusetts, United States of America
- * E-mail:
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212
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Huckins LM, Hatzikotoulas K, Southam L, Thornton LM, Steinberg J, Aguilera-McKay F, Treasure J, Schmidt U, Gunasinghe C, Romero A, Curtis C, Rhodes D, Moens J, Kalsi G, Dempster D, Leung R, Keohane A, Burghardt R, Ehrlich S, Hebebrand J, Hinney A, Ludolph A, Walton E, Deloukas P, Hofman A, Palotie A, Palta P, van Rooij FJA, Stirrups K, Adan R, Boni C, Cone R, Dedoussis G, van Furth E, Gonidakis F, Gorwood P, Hudson J, Kaprio J, Kas M, Keski-Rahonen A, Kiezebrink K, Knudsen GP, Slof-Op 't Landt MCT, Maj M, Monteleone AM, Monteleone P, Raevuori AH, Reichborn-Kjennerud T, Tozzi F, Tsitsika A, van Elburg A, Collier DA, Sullivan PF, Breen G, Bulik CM, Zeggini E. Investigation of common, low-frequency and rare genome-wide variation in anorexia nervosa. Mol Psychiatry 2018; 23:1169-1180. [PMID: 29155802 PMCID: PMC5828108 DOI: 10.1038/mp.2017.88] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 02/16/2017] [Accepted: 02/17/2017] [Indexed: 12/12/2022]
Abstract
Anorexia nervosa (AN) is a complex neuropsychiatric disorder presenting with dangerously low body weight, and a deep and persistent fear of gaining weight. To date, only one genome-wide significant locus associated with AN has been identified. We performed an exome-chip based genome-wide association studies (GWAS) in 2158 cases from nine populations of European origin and 15 485 ancestrally matched controls. Unlike previous studies, this GWAS also probed association in low-frequency and rare variants. Sixteen independent variants were taken forward for in silico and de novo replication (11 common and 5 rare). No findings reached genome-wide significance. Two notable common variants were identified: rs10791286, an intronic variant in OPCML (P=9.89 × 10-6), and rs7700147, an intergenic variant (P=2.93 × 10-5). No low-frequency variant associations were identified at genome-wide significance, although the study was well-powered to detect low-frequency variants with large effect sizes, suggesting that there may be no AN loci in this genomic search space with large effect sizes.
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Affiliation(s)
- L M Huckins
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
- Division of Psychiatric Genomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - K Hatzikotoulas
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - L Southam
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - L M Thornton
- Department of Psychiatry and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - J Steinberg
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - F Aguilera-McKay
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - J Treasure
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - U Schmidt
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - C Gunasinghe
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - A Romero
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - C Curtis
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - D Rhodes
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - J Moens
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - G Kalsi
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - D Dempster
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - R Leung
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - A Keohane
- Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- NIHR BRC SLaM BioResource for Mental Health, SGDP Centre & Centre for Neuroimaging Sciences, Section of Eating Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - R Burghardt
- Klinik für Kinder- und Jugendpsychiatrie, Psychotherapie und Psychosomatik Klinikum Frankfurt, Frankfurt, Germany
| | - S Ehrlich
- Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, TU Dresden, Dresden, Germany
- Eating Disorders Research and Treatment Center, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden, Germany
| | - J Hebebrand
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - A Hinney
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - A Ludolph
- Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg, Germany
| | - E Walton
- Division of Psychological & Social Medicine and Developmental Neurosciences, Technische Universität Dresden, Faculty of Medicine, University Hospital C.G. Carus, Dresden, Germany
- Department of Psychology, Georgia State University, Atlanta, GA, USA
| | - P Deloukas
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - A Hofman
- Erasmus University Medical Center, Rotterdam, The Netherlands
| | - A Palotie
- Center for Human Genome Research at the Massachusetts General Hospital, Boston, MA, USA
- Department of Public Health & Institute for Molecular Medicine FIMM, University of Helsinki, Helsinki, Finland
| | - P Palta
- Department of Public Health & Institute for Molecular Medicine FIMM, University of Helsinki, Helsinki, Finland
| | - F J A van Rooij
- Erasmus University Medical Center, Rotterdam, The Netherlands
| | - K Stirrups
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - R Adan
- Brain Center Rudolf Magnus, Department of Neuroscience and Pharmacology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - C Boni
- INSERM U984, Centre of Psychiatry and Neuroscience, Paris, France
| | - R Cone
- Mary Sue Coleman Director, Life Sciences Institute, Professor of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA
| | - G Dedoussis
- Department of Dietetics-Nutrition, Harokopio University, Athens, Greece
| | - E van Furth
- Rivierduinen Eating Disorders Ursula, Leiden, Zuid-Holland, The Netherlands
| | - F Gonidakis
- Eating Disorders Unit, 1st Department of Psychiatry, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - P Gorwood
- INSERM U984, Centre of Psychiatry and Neuroscience, Paris, France
| | - J Hudson
- Department of Psychiatry, McLean Hospital/Harvard Medical School, Belmont, MA, USA
| | - J Kaprio
- Department of Public Health & Institute for Molecular Medicine FIMM, University of Helsinki, Helsinki, Finland
| | - M Kas
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - A Keski-Rahonen
- Department of Public Health, Clinicum, University of Helsinki, Helsinki, Finland
| | - K Kiezebrink
- Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
| | - G-P Knudsen
- Health Data and Digitalisation, Norwegian Institute of Public Health, Oslo, Norway
| | | | - M Maj
- Department of Psychiatry, University of Naples SUN, Naples, Italy
| | - A M Monteleone
- Department of Psychiatry, University of Naples SUN, Naples, Italy
| | - P Monteleone
- Department of Medicine and Surgery, Section of Neurosciences, University of Salerno, Salerno, Italy
| | - A H Raevuori
- Department of Public Health, Clinicum, University of Helsinki, Helsinki, Finland
| | - T Reichborn-Kjennerud
- Department of Genetics, Environment and Mental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - F Tozzi
- eHealth Lab-Computer Science Department, University of Cyprus, Nicosia, Cyprus
| | - A Tsitsika
- Adolescent Health Unit (A.H.U.), 2nd Department of Pediatrics – Medical School, University of Athens "P. & A. Kyriakou" Children's Hospital, Athens, Greece
| | - A van Elburg
- Center for Eating Disorders Rintveld, University of Utrecht, Utrecht, The Netherlands
| | - D A Collier
- Eli Lilly and Company, Erl Wood Manor, Windlesham, UK
| | - P F Sullivan
- Departments of Genetics and Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinksa Institutet, Stockholm, Sweden
| | - G Breen
- Social Genetic and Developmental Psychiatry, King's College London, London, UK
| | - C M Bulik
- Department of Psychiatry and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinksa Institutet, Stockholm, Sweden
| | - E Zeggini
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
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213
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Pérez-Sánchez G, Jiménez A, Quezada-Ramírez MA, Estudillo E, Ayala-Sarmiento AE, Mendoza-Hernández G, Hernández-Soto J, Hernández-Hernández FC, Cázares-Raga FE, Segovia J. Annexin A1, Annexin A2, and Dyrk 1B are upregulated during GAS1-induced cell cycle arrest. J Cell Physiol 2018; 233:4166-4182. [PMID: 29030970 DOI: 10.1002/jcp.26226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 10/03/2017] [Indexed: 12/18/2022]
Abstract
GAS1 is a pleiotropic protein that has been investigated because of its ability to induce cell proliferation, cell arrest, and apoptosis, depending on the cellular or the physiological context in which it is expressed. At this point, we have information about the molecular mechanisms by which GAS1 induces proliferation and apoptosis; but very few studies have been focused on elucidating the mechanisms by which GAS1 induces cell arrest. With the aim of expanding our knowledge on this subject, we first focused our research on finding proteins that were preferentially expressed in cells arrested by serum deprivation. By using a proteomics approach and mass spectrometry analysis, we identified 17 proteins in the 2-DE protein profile of serum deprived NIH3T3 cells. Among them, Annexin A1 (Anxa1), Annexin A2 (Anxa2), dual specificity tyrosine-phosphorylation-regulated kinase 1B (Dyrk1B), and Eukaryotic translation initiation factor 3, F (eIf3f) were upregulated at transcriptional the level in proliferative NIH3T3 cells. Moreover, we demonstrated that Anxa1, Anxa2, and Dyrk1b are upregulated at both the transcriptional and translational levels by the overexpression of GAS1. Thus, our results suggest that the upregulation of Anxa1, Anxa2, and Dyrk1b could be related to the ability of GAS1 to induce cell arrest and maintain cell viability. Finally, we provided further evidence showing that GAS1 through Dyrk 1B leads not only to the arrest of NIH3T3 cells but also maintains cell viability.
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Affiliation(s)
- Gilberto Pérez-Sánchez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Adriana Jiménez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Marco A Quezada-Ramírez
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Enrique Estudillo
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Alberto E Ayala-Sarmiento
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | | | - Justino Hernández-Soto
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Fidel C Hernández-Hernández
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Febe E Cázares-Raga
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Jose Segovia
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
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214
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Ghozali M, Cakranita TH, Tjahjadi AI, Reniarti L, Ghrahani R, Syamsunarno M, Setiabudiawan B, Panigoro R. Fcγ receptor III expression and morphological maturity on neutrophil are associated with higher iron level of major beta-thalassemia. Cell Mol Biol (Noisy-le-grand) 2018; 64:97-101. [PMID: 29729700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 04/18/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Lifetime blood transfusion experienced by major β-thalassemia patients complicated with iron overload, therefore, may lead to their tissue injury. Ultimately, free toxic iron may alter immune response via dysregulation of immune cell activity producing prolonged effector reaction. Neutrophil as one of the vital innate immune cell despite serves as the first line of defense resulting acute inflammation has a pivotal role in chronic inflammation while releasing the toxic substance that interferes biological processes. This process is initiated by one of them by activation of Fcγ Receptor III (CD16), a neutrophil membrane-bound protein. A cross-sectional laboratory study involving lysed-erythrocyte heparinized whole blood of fifty pediatric major β-thalassemia patients treated with monoclonal antibodies i.e. CD16, CD14, and HLA-DR, dissected into CD16+ and CD16++ population using flow cytometry. Expression of Fcγ Receptor III was measured as Median Fluorescent Intensity (MFI). Hematology and iron status were measured. A correlation analysis was done. MFI of CD16 neutrophil [509.5 (371 - 796.5)] and ferritin level [(3209 µg/L, 1862 - 4564)] was positively correlated (r = 0.4, P = 0.007). Respectively, ferritin and serum iron were found negatively correlated with segmented neutrophils (r = -0.3, P = 0.02; r = -0.3, P = 0.02). Change in CD16 expression may implicate preliminarily neutrophil activation as a response of iron-overloaded tissue and result in chronic inflammation in β-thalassemia patients. However, the maturity of this cell may be altered. Future study in the understanding of neutrophil-mediated inflammation, particularly related to immune complexes and functionality, is imperative to be explored.
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Affiliation(s)
- Mohammad Ghozali
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | | | - Adi Imam Tjahjadi
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Lelani Reniarti
- Department of Pediatrics, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Reni Ghrahani
- Department of Pediatrics, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Mraa Syamsunarno
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Budi Setiabudiawan
- Department of Pediatrics, Faculty of Medicine, Universitas Padjadjaran, Indonesia
| | - Ramdan Panigoro
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Indonesia
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215
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Abstract
PROPOSE We aimed to explore the potential molecular mechanism and independent prognostic genes for colon cancer (CC). METHODS Microarray datasets GSE17536 and GSE39582 were downloaded from Gene Expression Omnibus. Meanwhile, the whole CC-related dataset were downloaded from The Cancer Genome Atlas (TCGA) database. Differentially expressed mRNA (DEMs) were identified between cancer tissue samples and para-carcinoma tissue samples in TCGA dataset, followed by the KEGG pathway and GO function analyses. Furthermore, the clinical prognostic analysis including overall survival (OS) and disease-free survival (DFS) were performed in all three datasets. RESULTS A total of 633 up- and 321 down-regulated mRNAs were revealed in TCGA dataset. The up-regulated mRNAs were mainly assembled in functions including extracellular matrix and pathways including Wnt signaling. The down-regulated mRNAs were mainly assembled in functions like Digestion and pathways like Drug metabolism. Furthermore, up-regulation of UL16-binding protein 2 (ULBP2) was associated with OS in CC patients. A total of 12 DEMs including Surfactant Associated 2 (SFTA2) were potential DFS prognostic genes in CC patients. Meanwhile, the GRP and Transmembrane Protein 37 (TMEM37) were two outstanding independent DFS prognostic genes in CC. CONCLUSIONS ULBP2 might be a potential novel OS prognostic biomarker in CC, while GRP and TMEM37 could be served as the independent DFS prognostic genes in CC. Furthermore, functions including extracellular matrix and digestion, as well as pathways including Wnt signaling and drug metabolism might play important roles in the process of CC.
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Affiliation(s)
- Chunsheng Li
- Gastrointestinal Colorectal and Anal surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin 130033 China
| | - Zhen Shen
- Gastrointestinal Colorectal and Anal surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin 130033 China
| | - Yangyang Zhou
- Department of Neurology, The First Hospital of Jilin University, Changchun, Jilin 130021 China
| | - Wei Yu
- Gastrointestinal Colorectal and Anal surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin 130033 China
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216
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Dion SP, Béliveau F, Désilets A, Ghinet MG, Leduc R. Transcriptome analysis reveals TMPRSS6 isoforms with distinct functionalities. J Cell Mol Med 2018; 22:2498-2509. [PMID: 29441715 PMCID: PMC5867103 DOI: 10.1111/jcmm.13562] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 01/10/2018] [Indexed: 11/30/2022] Open
Abstract
TMPRSS6 (matriptase-2) is a type II transmembrane serine protease involved in iron homoeostasis. At the cell surface of hepatocytes, TMPRSS6 cleaves haemojuvelin (HJV) and regulates the BMP/SMAD signalling pathway leading to production of hepcidin, a key regulator of iron absorption. Although four TMPRSS6 human isoforms and three mice Tmprss6 isoforms are annotated in databases (Ensembl and RefSeq), their relative expression or activity has not been studied. Analyses of RNA-seq data and RT-PCR from human tissues reveal that TMPRSS6 isoform 1 (TMPRSS6-1) and 3 are mostly expressed in human testis while TMPRSS6-2 and TMPRSS6-4 are the main transcripts expressed in human liver, testis and pituitary. Furthermore, we confirm the existence and analyse the relative expression of three annotated mice Tmprss6 isoforms. Using heterologous expression in HEK293 and Hep3B cells, we show that all human TMPRSS6 isoforms reach the cell surface but only TMPRSS6-1 undergoes internalization. Moreover, truncated TMPRSS6-3 or catalytically altered TMPRSS6-4 interact with HJV and prevent its cleavage by TMPRSS6-2, suggesting their potential role as dominant negative isoforms. Taken together, our results highlight the importance of understanding the precise function of each TMPRSS6 isoforms both in human and in mouse.
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Affiliation(s)
- Sébastien P. Dion
- Department of Pharmacology‐PhysiologyFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
- Institut de Pharmacologie de SherbrookeFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
| | - François Béliveau
- Department of Pharmacology‐PhysiologyFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
- Institut de Pharmacologie de SherbrookeFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
| | - Antoine Désilets
- Department of Pharmacology‐PhysiologyFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
- Institut de Pharmacologie de SherbrookeFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
| | - Mariana Gabriela Ghinet
- Department of Pharmacology‐PhysiologyFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
- Institut de Pharmacologie de SherbrookeFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
| | - Richard Leduc
- Department of Pharmacology‐PhysiologyFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
- Institut de Pharmacologie de SherbrookeFaculty of Medicine and Health SciencesUniversité de SherbrookeSherbrookeQCCanada
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217
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Fuery MA, Liang L, Kaplan FS, Mohler ER. Vascular ossification: Pathology, mechanisms, and clinical implications. Bone 2018; 109:28-34. [PMID: 28688892 DOI: 10.1016/j.bone.2017.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/04/2017] [Accepted: 07/04/2017] [Indexed: 12/28/2022]
Abstract
In recent years, the mechanisms and clinical significance of vascular calcification have been increasingly investigated. For over a century, however, pathologists have recognized that vascular calcification is a form of heterotopic ossification. In this review, we aim to describe the pathology and molecular processes of vascular ossification, to characterize its clinical significance and treatment options, and to elucidate areas that require further investigation. The molecular mechanisms of vascular ossification involve the activation of regulators including bone morphogenic proteins and chondrogenic transcription factors and the loss of mineralization inhibitors like fetuin-A and pyrophosphate. Although few studies have examined the gross pathology of vascular ossification, the presence of these molecular regulators and evidence of microfractures and cartilage have been demonstrated on heart valves and atherosclerotic plaques. These changes are often triggered by common inflammatory and metabolic disorders like diabetes, hyperlipidemia, and chronic kidney disease. The increasing prevalence of these diseases warrants further research into the clinical significance of vascular ossification and future treatment options.
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Affiliation(s)
- Michael A Fuery
- Department of Medicine, Cardiovascular Division, Section of Vascular Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Lusha Liang
- Department of Medicine, Cardiovascular Division, Section of Vascular Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Frederick S Kaplan
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Emile R Mohler
- Department of Medicine, Cardiovascular Division, Section of Vascular Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
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218
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Eisfeldt J, Nilsson D, Andersson-Assarsson JC, Lindstrand A. AMYCNE: Confident copy number assessment using whole genome sequencing data. PLoS One 2018; 13:e0189710. [PMID: 29579039 PMCID: PMC5868770 DOI: 10.1371/journal.pone.0189710] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 11/30/2017] [Indexed: 11/18/2022] Open
Abstract
Copy number variations (CNVs) within the human genome have been linked to a diversity of inherited diseases and phenotypic traits. The currently used methodology to measure copy numbers has limited resolution and/or precision, especially for regions with more than 4 copies. Whole genome sequencing (WGS) offers an alternative data source to allow for the detection and characterization of the copy number across different genomic regions in a single experiment. A plethora of tools have been developed to utilize WGS data for CNV detection. None of these tools are designed specifically to accurately estimate copy numbers of complex regions in a small cohort or clinical setting. Herein, we present AMYCNE (automatic modeling functionality for copy number estimation), a CNV analysis tool using WGS data. AMYCNE is multifunctional and performs copy number estimation of complex regions, annotation of VCF files, and CNV detection on individual samples. The performance of AMYCNE was evaluated using AMY1A ddPCR measurements from 86 unrelated individuals. In addition, we validated the accuracy of AMYCNE copy number predictions on two additional genes (FCGR3A and FCGR3B) using datasets available through the 1000 genomes consortium. Finally, we simulated levels of mosaic loss and gain of chromosome X and used this dataset for benchmarking AMYCNE. The results show a high concordance between AMYCNE and ddPCR, validating the use of AMYCNE to measure tandem AMY1 repeats with high accuracy. This opens up new possibilities for the use of WGS for accurate copy number determination of other complex regions in the genome in small cohorts or single individuals.
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Affiliation(s)
- Jesper Eisfeldt
- Department of Molecular Medicine and Surgery, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet Science Park, Solna, Sweden
- * E-mail:
| | - Daniel Nilsson
- Department of Molecular Medicine and Surgery, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet Science Park, Solna, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | | | - Anna Lindstrand
- Department of Molecular Medicine and Surgery, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
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219
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Isakova J, Talaibekova E, Vinnikov D, Aldasheva N, Mirrakhimov E, Aldashev A. The association of Val109Asp polymorphic marker of intelectin 1 gene with abdominal obesity in Kyrgyz population. BMC Endocr Disord 2018; 18:15. [PMID: 29482534 PMCID: PMC6389047 DOI: 10.1186/s12902-018-0242-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 02/19/2018] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND The aim of this study was to quantify the association of Val109Asp polymorphism of intelectin 1 (ITLN1) gene with the abdominal obesity (AO) in Kyrgyz population. METHODS Patients admitted to annual screening at a local outpatient facility were enrolled or this study. We genotyped 297 nonrelated adults of Kyrgyz ethnicity, of whom 127 were AO patients, including 46 men and 81 women with the mean age 53.2 ± 7.1 years, and 170 non-obese controls, including 61 men and 109 women with the mean age 52.0 ± 9.0 years. AO was defined as having waist circumferences ≥ 102 cm in men and ≥ 88 cm in women. We used PCR-RFLP method to define Val109Asp polymorphism of ITLN1 gene. RESULTS Asp109Asp, Asp109Val and Val109Val genotypes were found in 48%, 40%, and 12% of AO patients respectively, and in 53%, 43%, and 4% of controls, whereas Val109Val homozygous genotype of ITLN1 gene Val109Asp polymorphic marker was significantly more prevalent in AO patients. In Kyrgyz population, Val109Val genotype of ITLN1 gene increased the risk of AO (odds ratio (OR) 3.12, 95% CI 1.23-7.90). Asp109Asp homozygous genotype, on opposite, was not associated with this condition (OR 0.82, 95% CI 0.53-1.30). Finally, the allelic variants of Val109Asp polymorphism of ITLN1 gene were not associated with AO. CONCLUSION Significant increase in the frequency of Val109Val genotype of ITLN1 gene in AO patients may be indicative of some potential role of ITLN1 gene in molding genetic predisposition to AO in the Kyrgyz. This requires further elaboration in the future studies.
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Affiliation(s)
- Jainagul Isakova
- Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, 720040 Bishkek, Kyrgyzstan
| | - Elnura Talaibekova
- Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, 720040 Bishkek, Kyrgyzstan
| | - Denis Vinnikov
- Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, 720040 Bishkek, Kyrgyzstan
- School of Public Health, al-Farabi Kazakh National University, 71 Al-Farabi avenue, Almaty, Kazakhstan 050040
| | - Nazira Aldasheva
- Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, 720040 Bishkek, Kyrgyzstan
- I.K. Akhunbaev Kyrgyz State Medical Academy, 92 Akhunbaev Street, Bishkek, 720020 Kyrgyz Republic
| | - Erkin Mirrakhimov
- I.K. Akhunbaev Kyrgyz State Medical Academy, 92 Akhunbaev Street, Bishkek, 720020 Kyrgyz Republic
| | - Almaz Aldashev
- Institute of Molecular Biology and Medicine, 3 Togolok Moldo Street, 720040 Bishkek, Kyrgyzstan
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220
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White M, Freistaedter A, Jones GJB, Zervos E, Roper RL. Development of improved therapeutic mesothelin-based vaccines for pancreatic cancer. PLoS One 2018; 13:e0193131. [PMID: 29474384 PMCID: PMC5825036 DOI: 10.1371/journal.pone.0193131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 02/05/2018] [Indexed: 11/25/2022] Open
Abstract
Pancreatic cancer is the 5th leading cause of cancer deaths, and there are no effective treatments. We developed a poxvirus platform vaccine with improved immunogenicity and inserted the mesothelin gene to create an anti-mesothelin cancer vaccine. Mesothelin expression is mostly restricted to tumors in adult mammals and thus may be a good target for cancer treatment. We show here that the modified vaccinia virus Ankara (MVA) virus expressing mesothelin and the enhanced MVA virus missing the immunosuppressive A35 gene and expressing mesothelin were both safe in mice and were able to induce IFN-gamma secreting T cells in response to mesothelin expressing tumor cells. In addition, the MVA virus has oncolytic properties in vitro as it can replicate in and kill Panc02 pancreatic adenocarcinoma cell line tumor cells, even though it is unable to replicate in most mammalian cells. Deletion of the A35 gene in MVA improved T cell responses as expected. However, we were unable to demonstrate inhibition of Panc02 tumor growth in immunocompetent mice with pre-vaccination of mice, boosts, or even intratumoral injections of the recombinant viruses. Vaccine efficacy may be limited by shedding of mesothelin from tumor cells thus creating a protective screen from the immune system.
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Affiliation(s)
- Michael White
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, NC, United States of America
| | - Andrew Freistaedter
- Department of Microbiology, Brody School of Medicine, East Carolina University, Greenville, NC, United States of America
| | - Gwendolyn J B Jones
- Department of Microbiology, Brody School of Medicine, East Carolina University, Greenville, NC, United States of America
| | - Emmanuel Zervos
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, NC, United States of America
| | - Rachel L Roper
- Department of Microbiology, Brody School of Medicine, East Carolina University, Greenville, NC, United States of America
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221
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Cheng Z, Liu L, Wang Z, Cai Y, Xu Q, Chen P. Hypoxia Activates Src and Promotes Endocytosis Which Decreases MMP-2 Activity and Aggravates Renal Interstitial Fibrosis. Int J Mol Sci 2018; 19:E581. [PMID: 29462885 PMCID: PMC5855803 DOI: 10.3390/ijms19020581] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/22/2018] [Accepted: 02/12/2018] [Indexed: 12/14/2022] Open
Abstract
The aggravation of renal interstitial fibrosis in the advanced-stage of chronic kidney disease is related to decreased matrix metalloproteinase-2 (MMP-2) activity, which is induced by hypoxia in the kidney; however, the specific mechanism remains unclear. We previously demonstrated that inhibition of Caveolin-1, a key gene involved in endocytosis, increased MMP-2 activity in hypoxic HK-2 cells. It has been reported that activated Src (phospho-Src Tyr416) is a key molecule in multiple fibrotic pathways. However, whether Src functions on the regulation of Caveolin-1 and MMP-2 activity in hypoxic HK-2 cells remains poorly understood. To explore the underlying mechanism, a rat model of renal interstitial fibrosis was established, then we observed obvious hypoxia in fibrotic kidney tissue and the protein levels of phospho-Src and Caveolin-1 increased, while MMP-2 activity decreased. Next, we treated HK-2 cells with the phospho-Src inhibitor PP1. Compared with normal cells grown in hypoxia, in cells treated with PP1, the protein levels of phospho-Src and Caveolin-1 decreased, as did the protein levels of the MMP-2-activity-regulated molecules RECK (reversion-inducing-cysteine-rich protein with kazal motifs) and TIMP-2 (tissue inhibitor of metalloproteinase-2), while the protein level of MT1-MMP (membrane type 1-matrix metalloproteinase) increased and MMP-2 activity was enhanced. Therefore, hypoxia promotes the phosphorylation of Src and phospho-Src can enhance the endocytosis of HK-2 cells, which leads to decreased MMP-2 activity and aggravates renal interstitial fibrosis.
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Affiliation(s)
- Zhengyuan Cheng
- Department of pathology and pathophysiology, Medical School, Southeast University, Dingjiaqiao 87, Gulou district, Nanjing 210009, China.
| | - Lei Liu
- Department of pathology and pathophysiology, Medical School, Southeast University, Dingjiaqiao 87, Gulou district, Nanjing 210009, China.
| | - Zhi Wang
- Department of pathology and pathophysiology, Medical School, Southeast University, Dingjiaqiao 87, Gulou district, Nanjing 210009, China.
| | - Yingying Cai
- Department of pathology and pathophysiology, Medical School, Southeast University, Dingjiaqiao 87, Gulou district, Nanjing 210009, China.
| | - Qing Xu
- Department of pathology and pathophysiology, Medical School, Southeast University, Dingjiaqiao 87, Gulou district, Nanjing 210009, China.
| | - Pingsheng Chen
- Department of pathology and pathophysiology, Medical School, Southeast University, Dingjiaqiao 87, Gulou district, Nanjing 210009, China.
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Abstract
NKG2D (natural killer group 2, member D) is an important activating receptor in natural killer (NK) cells and some T cells. NKG2D ligands (NKG2DLs) are specifically expressed on most tumor cells. The engagement of these ligands on tumor cells to NKG2D on NK cells will induce cell-mediated cytotoxicity and have target cells destroyed. This gives NKG2D/NKG2DLs great potential in cancer therapeutic application. The creation of NKG2D/NKG2DL-based multi-functional fusion proteins is becoming one of the most promising strategies in immunotherapy for cancer. Antibodies, cytokines, and death receptors have been fused with NKG2D or its ligands to produce many powerful fusion proteins, including NKG2D-based chimeric antigen receptors (CARs). In this article, we review the recent developments of the fusion proteins with NKG2D/NKG2DL ligands in cancer immunotherapy.
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Affiliation(s)
- Hui Ding
- Department of Biological Sciences, Clemson University, 190 Collings Street, Clemson, SC 29634, USA.
| | - Xi Yang
- Department of Biological Sciences, Clemson University, 190 Collings Street, Clemson, SC 29634, USA.
| | - Yanzhang Wei
- Department of Biological Sciences, Clemson University, 190 Collings Street, Clemson, SC 29634, USA.
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Rahimova R, Fontanel S, Lionne C, Jordheim LP, Peyrottes S, Chaloin L. Identification of allosteric inhibitors of the ecto-5'-nucleotidase (CD73) targeting the dimer interface. PLoS Comput Biol 2018; 14:e1005943. [PMID: 29377887 PMCID: PMC5805337 DOI: 10.1371/journal.pcbi.1005943] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 02/08/2018] [Accepted: 12/28/2017] [Indexed: 12/31/2022] Open
Abstract
The ecto-5'-nucleotidase CD73 plays an important role in the production of immune-suppressive adenosine in tumor micro-environment, and has become a validated drug target in oncology. Indeed, the anticancer immune response involves extracellular ATP to block cell proliferation through T-cell activation. However, in the tumor micro-environment, two extracellular membrane-bound enzymes (CD39 and CD73) are overexpressed and hydrolyze efficiently ATP into AMP then further into immune-suppressive adenosine. To circumvent the impact of CD73-generated adenosine, we applied an original bioinformatics approach to identify new allosteric inhibitors targeting the dimerization interface of CD73, which should impair the large dynamic motions required for its enzymatic function. Several hit compounds issued from virtual screening campaigns showed a potent inhibition of recombinant CD73 with inhibition constants in the low micromolar range and exhibited a non-competitive inhibition mode. The structure-activity relationships studies indicated that several amino acid residues (D366, H456, K471, Y484 and E543 for polar interactions and G453-454, I455, H456, L475, V542 and G544 for hydrophobic contacts) located at the dimerization interface are involved in the tight binding of hit compounds and likely contributed for their inhibitory activity. Overall, the gathered information will guide the upcoming lead optimization phase that may lead to potent and selective CD73 inhibitors, able to restore the anticancer immune response.
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Affiliation(s)
- Rahila Rahimova
- Institut de Recherche en Infectiologie de Montpellier (IRIM), Univ. Montpellier, CNRS, Montpellier, France; Institut de Biologie Computationnelle (IBC), Montpellier, France
| | - Simon Fontanel
- Institut de Génomique Fonctionnelle (IGF), Univ. Montpellier, CNRS, Montpellier, France
| | - Corinne Lionne
- Centre de Biologie Structurale (CBS), Univ. Montpellier, CNRS, INSERM, Montpellier, France
| | - Lars Peter Jordheim
- Centre Léon Bérard (CLB), Centre de Recherche en Cancérologie de Lyon (CRCL), Univ. de Lyon, INSERM, CNRS, Lyon, France
| | - Suzanne Peyrottes
- Institut des Biomolécules Max-Mousseron (IBMM), CNRS, Univ. Montpellier, ENSCM, Montpellier, France
| | - Laurent Chaloin
- Institut de Recherche en Infectiologie de Montpellier (IRIM), Univ. Montpellier, CNRS, Montpellier, France; Institut de Biologie Computationnelle (IBC), Montpellier, France
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Ji D, Wang S, Li M, Zhang S, Li H. Involvement of Lypge in the formation of eye and pineal gland in zebrafish. Gene 2017; 642:491-497. [PMID: 29196253 DOI: 10.1016/j.gene.2017.11.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 11/19/2022]
Abstract
The proteins of Ly-6 (lymphocyte antigen-6) family are involved in the regulation of immunoreaction, cell migration and adhesion, and neuronal excitability. However, little is known about the function of Ly-6 proteins in embryogenesis. Herein, we identified a GPI anchored Ly-6 member named ly6 expressed in pineal gland and eye (lypge). Dynamic expression pattern of lypge was revealed by whole mount in situ hybridization. It was strikingly expressed in the pineal gland and cone photoreceptor, and its expression was regulated by orthodenticle homolog 5 (otx5) which has been shown to control the expression of many pineal genes. In addition, we demonstrated that lypge was rhythmically expressed in larvae from 4dpf on. Moreover, knockdown of lypge resulted in small head and small eye formed in zebrafish embryos. These suggest that Lypge is involved in the formation of the eye and pineal gland in early development of zebrafish.
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Affiliation(s)
- Dongrui Ji
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Laboratory for Evolution & Development, Department of Marine Biology, Ocean University of China, Qingdao 266003, China
| | - Su Wang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Laboratory for Evolution & Development, Department of Marine Biology, Ocean University of China, Qingdao 266003, China
| | - Mingyue Li
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Laboratory for Evolution & Development, Department of Marine Biology, Ocean University of China, Qingdao 266003, China
| | - Shicui Zhang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Laboratory for Evolution & Development, Department of Marine Biology, Ocean University of China, Qingdao 266003, China
| | - Hongyan Li
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China; Laboratory for Evolution & Development, Department of Marine Biology, Ocean University of China, Qingdao 266003, China.
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225
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Schormair B, Zhao C, Bell S, Tilch E, Salminen AV, Pütz B, Dauvilliers Y, Stefani A, Högl B, Poewe W, Kemlink D, Sonka K, Bachmann CG, Paulus W, Trenkwalder C, Oertel WH, Hornyak M, Teder-Laving M, Metspalu A, Hadjigeorgiou GM, Polo O, Fietze I, Ross OA, Wszolek Z, Butterworth AS, Soranzo N, Ouwehand WH, Roberts DJ, Danesh J, Allen RP, Earley CJ, Ondo WG, Xiong L, Montplaisir J, Gan-Or Z, Perola M, Vodicka P, Dina C, Franke A, Tittmann L, Stewart AFR, Shah SH, Gieger C, Peters A, Rouleau GA, Berger K, Oexle K, Di Angelantonio E, Hinds DA, Müller-Myhsok B, Winkelmann J. Identification of novel risk loci for restless legs syndrome in genome-wide association studies in individuals of European ancestry: a meta-analysis. Lancet Neurol 2017; 16:898-907. [PMID: 29029846 PMCID: PMC5755468 DOI: 10.1016/s1474-4422(17)30327-7] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/10/2017] [Accepted: 08/17/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Restless legs syndrome is a prevalent chronic neurological disorder with potentially severe mental and physical health consequences. Clearer understanding of the underlying pathophysiology is needed to improve treatment options. We did a meta-analysis of genome-wide association studies (GWASs) to identify potential molecular targets. METHODS In the discovery stage, we combined three GWAS datasets (EU-RLS GENE, INTERVAL, and 23andMe) with diagnosis data collected from 2003 to 2017, in face-to-face interviews or via questionnaires, and involving 15 126 cases and 95 725 controls of European ancestry. We identified common variants by fixed-effect inverse-variance meta-analysis. Significant genome-wide signals (p≤5 × 10-8) were tested for replication in an independent GWAS of 30 770 cases and 286 913 controls, followed by a joint analysis of the discovery and replication stages. We did gene annotation, pathway, and gene-set-enrichment analyses and studied the genetic correlations between restless legs syndrome and traits of interest. FINDINGS We identified and replicated 13 new risk loci for restless legs syndrome and confirmed the previously identified six risk loci. MEIS1 was confirmed as the strongest genetic risk factor for restless legs syndrome (odds ratio 1·92, 95% CI 1·85-1·99). Gene prioritisation, enrichment, and genetic correlation analyses showed that identified pathways were related to neurodevelopment and highlighted genes linked to axon guidance (associated with SEMA6D), synapse formation (NTNG1), and neuronal specification (HOXB cluster family and MYT1). INTERPRETATION Identification of new candidate genes and associated pathways will inform future functional research. Advances in understanding of the molecular mechanisms that underlie restless legs syndrome could lead to new treatment options. We focused on common variants; thus, additional studies are needed to dissect the roles of rare and structural variations. FUNDING Deutsche Forschungsgemeinschaft, Helmholtz Zentrum München-Deutsches Forschungszentrum für Gesundheit und Umwelt, National Research Institutions, NHS Blood and Transplant, National Institute for Health Research, British Heart Foundation, European Commission, European Research Council, National Institutes of Health, National Institute of Neurological Disorders and Stroke, NIH Research Cambridge Biomedical Research Centre, and UK Medical Research Council.
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Affiliation(s)
- Barbara Schormair
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Chen Zhao
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Steven Bell
- National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics at the University of Cambridge, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; MRC/BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, UK
| | - Erik Tilch
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Aaro V Salminen
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Benno Pütz
- Max Planck Institute of Psychiatry, Munich, Germany
| | - Yves Dauvilliers
- Sleep-Wake Disorders Centre, Department of Neurology, Hôpital Gui-de-Chauliac, INSERM U1061, CHU Montpellier, France
| | - Ambra Stefani
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Birgit Högl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Werner Poewe
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - David Kemlink
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine and General University Hospital in Prague, Charles University, Prague, Czech Republic
| | - Karel Sonka
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine and General University Hospital in Prague, Charles University, Prague, Czech Republic
| | | | - Walter Paulus
- Department of Clinical Neurophysiology, University Medical Centre, Georg August University Göttingen, Göttingen, Germany
| | - Claudia Trenkwalder
- Clinic for Neurosurgery, University Medical Centre, Georg August University Göttingen, Göttingen, Germany; Paracelsus-Elena Hospital, Centre of Parkinsonism and Movement Disorders, Kassel, Germany
| | - Wolfgang H Oertel
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany; Department of Neurology, Philipps University Marburg, Marburg, Germany
| | - Magdolna Hornyak
- Department of Neurology, University of Ulm, Ulm, Germany; Neuropsychiatry Centre Erding/München, Erding, Germany
| | - Maris Teder-Laving
- Estonian Genome Centre, University of Tartu and Estonian Biocentre, Tartu, Estonia
| | - Andres Metspalu
- Estonian Genome Centre, University of Tartu and Estonian Biocentre, Tartu, Estonia
| | - Georgios M Hadjigeorgiou
- Laboratory of Neurogenetics, Department of Neurology, Faculty of Medicine, University of Thessaly, University Hospital of Larissa, Biopolis, Larissa, Greece
| | - Olli Polo
- Unesta Research Centre, Tampere, Finland; Department of Pulmonary Diseases, Tampere University Hospital, Tampere, Finland
| | - Ingo Fietze
- Department of Cardiology and Angiology, Centre of Sleep Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Owen A Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | - Adam S Butterworth
- National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics at the University of Cambridge, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; MRC/BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, UK; British Heart Foundation Centre of Excellence, Division of Cardiovascular Medicine, Addenbrooke's Hospital, Cambridge, UK
| | - Nicole Soranzo
- National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics at the University of Cambridge, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Willem H Ouwehand
- National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics at the University of Cambridge, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; NHS Blood and Transplant, Cambridge, UK; British Heart Foundation Centre of Excellence, Division of Cardiovascular Medicine, Addenbrooke's Hospital, Cambridge, UK; Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - David J Roberts
- NHS Blood and Transplant, Oxford, UK; Radcliffe Department of Medicine, BRC Haematology Theme and NHS Blood and Transplant, John Radcliffe Hospital, Headington, Oxford, UK; Department of Haematology and BRC Haematology Theme, Churchill Hospital, Oxford, UK
| | - John Danesh
- National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics at the University of Cambridge, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; MRC/BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, UK; British Heart Foundation Centre of Excellence, Division of Cardiovascular Medicine, Addenbrooke's Hospital, Cambridge, UK; Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK
| | - Richard P Allen
- Center for Restless Legs Study, Department of Neurology, Johns Hopkins University, Baltimore, MD, USA
| | - Christopher J Earley
- Center for Restless Legs Study, Department of Neurology, Johns Hopkins University, Baltimore, MD, USA
| | - William G Ondo
- Department of Neurology, Methodist Neurological Institute, Houston, TX, USA
| | - Lan Xiong
- Laboratoire de Neurogénétique, Centre de Recherche, Institut Universitaire en Santé Mentale de Montréal, Montréal, QC, Canada; Département de Psychiatrie, Université de Montréal, Montréal, QC, Canada; Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada
| | - Jacques Montplaisir
- Département de Psychiatrie, Université de Montréal, Montréal, QC, Canada; Hôpital du Sacré-Coeur de Montréal, 67120, Center for Advanced Research in Sleep Medicine, Montréal, QC, Canada
| | - Ziv Gan-Or
- Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada; Montreal Neurological Institute, McGill University, Montréal, QC, Canada
| | - Markus Perola
- Department of Health, National Institute for Health and Welfare, Helsinki, Finland; Institute of Molecular Medicine FIMM, University of Helsinki, Helsinki, Finland
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Academy of Science of Czech Republic, Prague, Czech Republic; Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, Pilsen, Czech Republic
| | - Christian Dina
- Inserm UMR1087, CNRS UMR 6291, Institut du Thorax, Nantes, France; Centre Hospitalier Universitaire (CHU) Nantes, Université de Nantes, France
| | - Andre Franke
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - Lukas Tittmann
- PopGen Biobank and Institute of Epidemiology, Christian Albrechts University Kiel, Kiel, Germany
| | - Alexandre F R Stewart
- John and Jennifer Ruddy Canadian Cardiovascular Genetics Centre, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Svati H Shah
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA; Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Christian Gieger
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany; Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany; German Centre for Diabetes Research (DZD), Neuherberg, Germany
| | - Annette Peters
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany; German Centre for Diabetes Research (DZD), Neuherberg, Germany; German Centre for Cardiovascular Disease Research (DZHK), Berlin, Germany
| | - Guy A Rouleau
- Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada; Department of Human Genetics, McGill University, Montréal, QC, Canada; Montreal Neurological Institute, McGill University, Montréal, QC, Canada
| | - Klaus Berger
- Institute of Epidemiology and Social Medicine, University of Münster, Münster, Germany
| | - Konrad Oexle
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Emanuele Di Angelantonio
- National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics at the University of Cambridge, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; MRC/BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK; NHS Blood and Transplant, Cambridge, UK; National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, UK; British Heart Foundation Centre of Excellence, Division of Cardiovascular Medicine, Addenbrooke's Hospital, Cambridge, UK
| | | | - Bertram Müller-Myhsok
- Max Planck Institute of Psychiatry, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Juliane Winkelmann
- Institute of Neurogenomics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; Institute of Human Genetics, Technische Universität München, Munich, Germany; Neurologische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany.
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Jin S, Tian S, Luo M, Xie W, Liu T, Duan T, Wu Y, Cui J. Tetherin Suppresses Type I Interferon Signaling by Targeting MAVS for NDP52-Mediated Selective Autophagic Degradation in Human Cells. Mol Cell 2017; 68:308-322.e4. [PMID: 28965816 DOI: 10.1016/j.molcel.2017.09.005] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/13/2017] [Accepted: 09/01/2017] [Indexed: 01/07/2023]
Abstract
Tetherin (BST2/CD317) is an interferon-inducible antiviral factor known for its ability to block the release of enveloped viruses from infected cells. Yet its role in type I interferon (IFN) signaling remains poorly defined. Here, we demonstrate that Tetherin is a negative regulator of RIG-I like receptor (RLR)-mediated type I IFN signaling by targeting MAVS. The induction of Tetherin by type I IFN accelerates MAVS degradation via ubiquitin-dependent selective autophagy in human cells. Moreover, Tetherin recruits E3 ubiquitin ligase MARCH8 to catalyze K27-linked ubiquitin chains on MAVS at lysine 7, which serves as a recognition signal for NDP52-dependent autophagic degradation. Taken together, our findings reveal a negative feedback loop of RLR signaling generated by Tetherin-MARCH8-MAVS-NDP52 axis and provide insights into a better understanding of the crosstalk between selective autophagy and optimal deactivation of type I IFN signaling.
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Affiliation(s)
- Shouheng Jin
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Shuo Tian
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Man Luo
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Weihong Xie
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Tao Liu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Tianhao Duan
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Yaoxing Wu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China
| | - Jun Cui
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China; Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
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227
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Liu L, Li E, Luo L, Zhao S, Li F, Wang J, Luo J, Zhao Z. PSCA regulates IL-6 expression through p38/NF-κB signaling in prostate cancer. Prostate 2017; 77:1389-1400. [PMID: 28845520 DOI: 10.1002/pros.23399] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 07/27/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Prostate stem cell antigen (PSCA) is a glycosylphosphatidylinositol (GPI)-anchored cell surface protein. We previously reported that PSCA involved in proliferation and invasion of PCa cells, however, the underlying mechanisms are unknown. In this study, we aimed to explore the regulating role of PSCA gene expression in interleukin-6 (IL-6) autocrine of PCa cells. METHODS The stable knockdown-PSCA and ectopically overexpressed-PSCA vector were constructed and transfected into human PCa DU145 and PC-3M cells. The effects of PSCA overexpression or knockdown were determined in proliferation, invasion, and metastasis assays. The effect of PSCA on the expression and secretion of IL-6 was evaluated by immunoblotting and ELISA. Subcellular localization and expression pattern of PSCA and IL-6 protein were examined by immunohistochemistry. Its clinical significance was statistically analyzed. RESULTS The results showed that stable knockdown of PSCA delayed proliferation, migration, and invasion while overexpressing PSCA enhanced the proliferation, migration, and invasion in vitro and the lung metastasis in vivo of PCa cells. Importantly, the PSCA involved in the IL-6 secretion and positively regulated p38/NF-κB/IL-6 signaling, leading to enhanced PCa cell invasion and metastasis. Both the expression of PSCA and IL-6 were significantly associated with poor biochemical recurrence-free survival of patients with PCa. PSCA protein expression showed a prognostic value in overall survival as indicated by Kaplan-Meier analysis. CONCLUSIONS These results indicate that PSCA regulates the expression and secretion of IL-6 in human PCa cells through p38/NF-κB signaling pathways. PSCA may be a potential diagnostic marker and therapeutic target for PSCA-positive PCa.
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Affiliation(s)
- Luhao Liu
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
- Department of Organ Transplantation, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ermao Li
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
| | - Lianmin Luo
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
| | - Shankun Zhao
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
| | - Futian Li
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
| | - Jiamin Wang
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
| | - Jintai Luo
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
| | - Zhigang Zhao
- Department of Urology & Andrology, Minimally Invasive Surgery Center, Guangdong Provincial Key Laboratory of Urology, The First Affiliated Hospital of GuangZhou Medical University, Guangzhou, Guangdong, China
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228
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Zanini E, Louis LS, Antony J, Karali E, Okon IS, McKie AB, Vaughan S, El-Bahrawy M, Stebbing J, Recchi C, Gabra H. The Tumor-Suppressor Protein OPCML Potentiates Anti-EGFR- and Anti-HER2-Targeted Therapy in HER2-Positive Ovarian and Breast Cancer. Mol Cancer Ther 2017; 16:2246-2256. [PMID: 28775148 DOI: 10.1158/1535-7163.mct-17-0081] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/22/2017] [Accepted: 07/14/2017] [Indexed: 11/16/2022]
Abstract
Opioid-binding protein/cell adhesion molecule-like (OPCML) is a tumor-suppressor gene that is frequently inactivated in ovarian cancer and many other cancers by somatic methylation. We have previously shown that OPCML exerts its suppressor function by negatively regulating a spectrum of receptor tyrosine kinases (RTK), such as ErbB2/HER2, FGFR1, and EphA2, thus attenuating their related downstream signaling. The physical interaction of OPCML with this defined group of RTKs is a prerequisite for their downregulation. Overexpression/gene amplification of EGFR and HER2 is a frequent event in multiple cancers, including ovarian and breast cancers. Molecular therapeutics against EGFR/HER2 or EGFR only, such as lapatinib and erlotinib, respectively, were developed to target these receptors, but resistance often occurs in relapsing cancers. Here we show that, though OPCML interacts only with HER2 and not with EGFR, the interaction of OPCML with HER2 disrupts the formation of the HER2-EGFR heterodimer, and this translates into a better response to both lapatinib and erlotinib in HER2-expressing ovarian and breast cancer cell lines. Also, we show that high OPCML expression is associated with better response to lapatinib therapy in breast cancer patients and better survival in HER2-overexpressing ovarian cancer patients, suggesting that OPCML co-therapy could be a valuable sensitizing approach to RTK inhibitors. Mol Cancer Ther; 16(10); 2246-56. ©2017 AACR.
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Affiliation(s)
- Elisa Zanini
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Louay S Louis
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Jane Antony
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Evdoxia Karali
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Imoh S Okon
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
- Center for Molecular and Translational Medicine, Georgia State University, Atlanta, Georgia
| | - Arthur B McKie
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
- Department of Medical Genetics, University of Cambridge, Addenbrooke's Treatment Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | - Sebastian Vaughan
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Mona El-Bahrawy
- Department of Histopathology, Imperial College London, London, United Kingdom
| | - Justin Stebbing
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Chiara Recchi
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom.
| | - Hani Gabra
- Ovarian Cancer Action Research Centre, Department of Surgery and Cancer, Imperial College London, London, United Kingdom.
- Clinical Discovery Unit, Early Clinical Development, AstraZeneca, Cambridge, United Kingdom
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229
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Escoté X, Gómez-Zorita S, López-Yoldi M, Milton-Laskibar I, Fernández-Quintela A, Martínez JA, Moreno-Aliaga MJ, Portillo MP. Role of Omentin, Vaspin, Cardiotrophin-1, TWEAK and NOV/CCN3 in Obesity and Diabetes Development. Int J Mol Sci 2017; 18:ijms18081770. [PMID: 28809783 PMCID: PMC5578159 DOI: 10.3390/ijms18081770] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 01/22/2023] Open
Abstract
Adipose tissue releases bioactive mediators called adipokines. This review focuses on the effects of omentin, vaspin, cardiotrophin-1, Tumor necrosis factor-like Weak Inducer of Apoptosis (TWEAK) and nephroblastoma overexpressed (NOV/CCN3) on obesity and diabetes. Omentin is produced by the stromal-vascular fraction of visceral adipose tissue. Obesity reduces omentin serum concentrations and adipose tissue secretion in adults and adolescents. This adipokine regulates insulin sensitivity, but its clinical relevance has to be confirmed. Vaspin is produced by visceral and subcutaneous adipose tissues. Vaspin levels are higher in obese subjects, as well as in subjects showing insulin resistance or type 2 diabetes. Cardiotrophin-1 is an adipokine with a similar structure as cytokines from interleukin-6 family. There is some controversy regarding the regulation of cardiotrophin-1 levels in obese -subjects, but gene expression levels of cardiotrophin-1 are down-regulated in white adipose tissue from diet-induced obese mice. It also shows anti-obesity and hypoglycemic properties. TWEAK is a potential regulator of the low-grade chronic inflammation characteristic of obesity. TWEAK levels seem not to be directly related to adiposity, and metabolic factors play a critical role in its regulation. Finally, a strong correlation has been found between plasma NOV/CCN3 concentration and fat mass. This adipokine improves insulin actions.
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Affiliation(s)
- Xavier Escoté
- Department of Nutrition, Food Sciences and Physiology, University of Navarra, 31008 Pamplona, Spain.
- Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain.
| | - Saioa Gómez-Zorita
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Research Institute, 01006 Vitoria, Spain.
- Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, 01006 Vitoria, Spain.
| | - Miguel López-Yoldi
- Department of Nutrition, Food Sciences and Physiology, University of Navarra, 31008 Pamplona, Spain.
- Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain.
| | - Iñaki Milton-Laskibar
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Research Institute, 01006 Vitoria, Spain.
- Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, 01006 Vitoria, Spain.
| | - Alfredo Fernández-Quintela
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Research Institute, 01006 Vitoria, Spain.
- Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, 01006 Vitoria, Spain.
| | - J Alfredo Martínez
- Department of Nutrition, Food Sciences and Physiology, University of Navarra, 31008 Pamplona, Spain.
- Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain.
- Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, 01006 Vitoria, Spain.
- Navarra Institute for Health Research (IdiSNa), 31008 Pamplona, Spain.
| | - María J Moreno-Aliaga
- Department of Nutrition, Food Sciences and Physiology, University of Navarra, 31008 Pamplona, Spain.
- Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain.
- Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, 01006 Vitoria, Spain.
- Navarra Institute for Health Research (IdiSNa), 31008 Pamplona, Spain.
| | - María P Portillo
- Nutrition and Obesity Group, Department of Nutrition and Food Science, University of the Basque Country (UPV/EHU) and Lucio Lascaray Research Institute, 01006 Vitoria, Spain.
- Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, 01006 Vitoria, Spain.
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Alkowari MK, Vozzi D, Bhagat S, Krishnamoorthy N, Morgan A, Hayder Y, Logendra B, Najjar N, Gandin I, Gasparini P, Badii R, Girotto G, Abdulhadi K. Targeted sequencing identifies novel variants involved in autosomal recessive hereditary hearing loss in Qatari families. Mutat Res 2017; 800-802:29-36. [PMID: 28501645 DOI: 10.1016/j.mrfmmm.2017.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/11/2017] [Accepted: 05/03/2017] [Indexed: 06/07/2023]
Abstract
Hereditary hearing loss is characterized by a very high genetic heterogeneity. In the Qatari population the role of GJB2, the worldwide HHL major player, seems to be quite limited compared to Caucasian populations. In this study we analysed 18 Qatari families affected by non-syndromic hearing loss using a targeted sequencing approach that allowed us to analyse 81 genes simultaneously. Thanks to this approach, 50% of these families (9 out of 18) resulted positive for the presence of likely causative alleles in 6 different genes: CDH23, MYO6, GJB6, OTOF, TMC1 and OTOA. In particular, 4 novel alleles were detected while the remaining ones were already described to be associated to HHL in other ethnic groups. Molecular modelling has been used to further investigate the role of novel alleles identified in CDH23 and TMC1 genes demonstrating their crucial role in Ca2+ binding and therefore possible functional role in proteins. Present study showed that an accurate molecular diagnosis based on next generation sequencing technologies might largely improve molecular diagnostics outcome leading to benefits for both genetic counseling and definition of recurrence risk.
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Affiliation(s)
- Moza K Alkowari
- Division of Experimental Genetics, Sidra Medical and Research Centre, Doha, Qatar
| | - Diego Vozzi
- Medical Genetics, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy
| | | | - Navaneethakrishnan Krishnamoorthy
- Division of Experimental Genetics, Sidra Medical and Research Centre, Doha, Qatar; Heart Science Centre, National Heart and Lung Institute, Imperial College London, United Kingdom
| | - Anna Morgan
- Medical Genetics, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy; Medical Sciences, Chirurgical and Health Department, University of Trieste, Trieste, Italy
| | | | | | | | - Ilaria Gandin
- Medical Genetics, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy
| | - Paolo Gasparini
- Medical Genetics, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy; Medical Sciences, Chirurgical and Health Department, University of Trieste, Trieste, Italy
| | - Ramin Badii
- Molecular Genetics Laboratory, HMC, Doha, Qatar
| | - Giorgia Girotto
- Medical Genetics, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy; Medical Sciences, Chirurgical and Health Department, University of Trieste, Trieste, Italy.
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231
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Meng F, Liu B, Xie G, Song Y, Zheng X, Qian X, Li S, Jia H, Zhang X, Zhang L, Yang YL, Fu L. Amplification and overexpression of PSCA at 8q24 in invasive micropapillary carcinoma of breast. Breast Cancer Res Treat 2017; 166:383-392. [PMID: 28755148 DOI: 10.1007/s10549-017-4407-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 07/17/2017] [Indexed: 11/24/2022]
Abstract
PURPOSE Invasive micropapillary carcinoma (IMPC) of the breast has distinct histological features and molecular genetic profiles. Gains/amplifications of 8q24 are found associated with IMPC. Although the prostate stem cell antigen (PSCA) gene is located at chromosome 8q24, and found over-expressed in prior studies, its prognostic values and biological significance in IMPC have not been well studied. METHODS Fluorescence in situ hybridization (FISH) was used to assess the frequencies of PSCA copy number gains in IMPC, invasive ductal carcinoma of no special type (IDC-NST), and invasive lobular carcinoma (ILC) samples. The protein expression levels of PSCA were examined in 56 IMPC, 72 IDC-NST, and 56 ILC samples using immunohistochemical analysis. RESULTS PSCA gene amplification was detected in 45.2% (14/31) of the IMPC, 28.1% (9/32) of the IDC-NST, and none (0/25) of the ILC. PSCA protein expression was observed in 58.9% (33/56), 40.3% (29/72), and 3.6% (2/56) of IMPC, IDC-NST, and ILC samples, respectively. The concordant rate of the immunohistochemistry and FISH data was 85.2%. PSCA gene amplification highly correlated with its protein overexpression (rs = 0.687, P < 0.001), suggesting that gene amplification is an important mechanism involved in PSCA overexpression. Our univariate analysis showed that the patients with PSCA-positive IMPC had a decreased disease-free survival (DFS) compared to PSCA-negative IMPC patients (P = 0.003). Our multivariate analysis confirmed the worse DFS in PSCA-positive IMPC patients (P = 0.022). CONCLUSIONS Our results indicate that PSCA may be an attractive target in the 8q24 amplicon and that it may serve as a molecular marker of metastasis and recurrence in IMPC. The differential expression of PSCA may be associated with cell adhesion. Detection of PSCA protein and gene amplification may help manage and predict the prognosis of IMPC patients.
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Affiliation(s)
- Fanfan Meng
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Bingbing Liu
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
- Third Central Hospital of Tianjin, Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Gan Xie
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Yawen Song
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Xia Zheng
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Xiaolong Qian
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Shuai Li
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Hongqin Jia
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
| | - Xinmin Zhang
- Department of Pathology, Cooper University Hospital, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Lanjing Zhang
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China
- Department of Pathology, University Medical Center of Princeton, Plainsboro, NJ, USA
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA
- Department of Biological Sciences, Faculty of Arts and Sciences, Rutgers University, Newark, NJ, USA
| | - Yi-Ling Yang
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China.
| | - Li Fu
- Department of Breast Pathology and Lab, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
- Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, West Huanhu Road, Ti Yuan Bei, Hexi District, Tianjin, 300060, China.
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Streicher C, Heyny A, Andrukhova O, Haigl B, Slavic S, Schüler C, Kollmann K, Kantner I, Sexl V, Kleiter M, Hofbauer LC, Kostenuik PJ, Erben RG. Estrogen Regulates Bone Turnover by Targeting RANKL Expression in Bone Lining Cells. Sci Rep 2017; 7:6460. [PMID: 28744019 PMCID: PMC5527119 DOI: 10.1038/s41598-017-06614-0] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/14/2017] [Indexed: 12/21/2022] Open
Abstract
Estrogen is critical for skeletal homeostasis and regulates bone remodeling, in part, by modulating the expression of receptor activator of NF-κB ligand (RANKL), an essential cytokine for bone resorption by osteoclasts. RANKL can be produced by a variety of hematopoietic (e.g. T and B-cell) and mesenchymal (osteoblast lineage, chondrocyte) cell types. The cellular mechanisms by which estrogen acts on bone are still a matter of controversy. By using murine reconstitution models that allow for selective deletion of estrogen receptor-alpha (ERα) or selective inhibition of RANKL in hematopoietic vs. mesenchymal cells, in conjunction with in situ expression profiling in bone cells, we identified bone lining cells as important gatekeepers of estrogen-controlled bone resorption. Our data indicate that the increase in bone resorption observed in states of estrogen deficiency in mice is mainly caused by lack of ERα-mediated suppression of RANKL expression in bone lining cells.
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Affiliation(s)
- Carmen Streicher
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Alexandra Heyny
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Olena Andrukhova
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Barbara Haigl
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Svetlana Slavic
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Christiane Schüler
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Karoline Kollmann
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Ingrid Kantner
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
- UCB Pharma GmbH, Vienna, Austria
| | - Veronika Sexl
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Miriam Kleiter
- Department for Companion Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Lorenz C Hofbauer
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany
| | - Paul J Kostenuik
- Amgen Inc., Thousand Oaks, CA, USA
- Phylon Pharma Services, Newbury Park, CA, USA
| | - Reinhold G Erben
- Department of Biomedical Research, University of Veterinary Medicine Vienna, Vienna, Austria.
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233
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Chisci E, De Giorgi M, Zanfrini E, Testasecca A, Brambilla E, Cinti A, Farina L, Kutryb-Zajac B, Bugarin C, Villa C, Grassilli E, Combi R, Gaipa G, Cerrito MG, Rivolta I, Smolenski RT, Lavitrano M, Giovannoni R. Simultaneous overexpression of human E5NT and ENTPD1 protects porcine endothelial cells against H 2O 2-induced oxidative stress and cytotoxicity in vitro. Free Radic Biol Med 2017; 108:320-333. [PMID: 28389406 DOI: 10.1016/j.freeradbiomed.2017.03.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/28/2017] [Accepted: 03/29/2017] [Indexed: 12/12/2022]
Abstract
Ischemia-reperfusion injury (IRI) and oxidative stress still limit the survival of cells and organs in xenotransplantation models. Ectonucleotidases play an important role in inflammation and IRI in transplantation settings. We tested the potential protective effects derived by the co-expression of the two main vascular ectonucleotidases, ecto-5'-nucleotidase (E5NT) and ecto nucleoside triphosphate diphosphohydrolase 1 (ENTPD1), in an in vitro model of H2O2-induced oxidative stress and cytotoxicity. We produced a dicistronic plasmid (named pCX-DI-2A) for the co-expression of human E5NT and ENTPD1 by using the F2A technology. pCX-DI-2A-transfected porcine endothelial cells simultaneously overexpressed hE5NT and hENTPD1, which were correctly processed and localized on the plasma membrane. Furthermore, such co-expression system led to the synergistic enzymatic activity of hE5NT and hENTPD1 as shown by the efficient catabolism of pro-inflammatory and pro-thrombotic extracellular adenine nucleotides along with the enhanced production of the anti-inflammatory molecule adenosine. Interestingly, we found that the hE5NT/hENTPD1 co-expression system conferred protection to cells against H2O2-induced oxidative stress and cytotoxicity. pCX-DI-2A-transfected cells showed reduced activation of caspase 3/7 and cytotoxicity than mock-, hE5NT- and hENTPD1-transfected cells. Furthermore, pCX-DI-2A-transfected cells showed decreased H2O2-induced production of ROS as compared to the other control cell lines. The cytoprotective phenotype observed in pCX-DI-2A-transfected cells was associated with higher detoxifying activity of catalase as well as increased activation of the survival signaling molecules Akt, extracellular signal-regulated kinases 1/2 (ERK1/2) and p38 mitogen-activated protein kinase (MAPK). Our data add new insights to the protective effects of the combination of hE5NT and hENTPD1 against oxidative stress and constitute a proof of concept for testing this new genetic combination in pig-to-non-human primates xenotransplantation models.
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Affiliation(s)
- Elisa Chisci
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Marco De Giorgi
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy; Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland
| | - Elisa Zanfrini
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Angela Testasecca
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Elena Brambilla
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Alessandro Cinti
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Laura Farina
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Barbara Kutryb-Zajac
- Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland
| | - Cristina Bugarin
- M. Tettamanti Research Center, Pediatric Clinic, University of Milano Bicocca, 20900 Monza, Italy
| | - Chiara Villa
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Emanuela Grassilli
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Romina Combi
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Giuseppe Gaipa
- M. Tettamanti Research Center, Pediatric Clinic, University of Milano Bicocca, 20900 Monza, Italy
| | - Maria Grazia Cerrito
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Ilaria Rivolta
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | | | - Marialuisa Lavitrano
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Roberto Giovannoni
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy.
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234
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Wang P, Zhang L, Fisher R, Chen M, Liang S, Han S, Zheng S, Sui H, Lin Y. Accurate analysis of fusion expression of Pichia pastoris glycosylphosphatidylinositol-modified cell wall proteins. J Ind Microbiol Biotechnol 2017; 44:1355-1365. [PMID: 28660369 DOI: 10.1007/s10295-017-1962-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/15/2017] [Indexed: 11/24/2022]
Abstract
Glycosylphosphatidylinositol (GPI)-anchored glycoproteins have diverse intrinsic functions in yeasts, and they also have different uses in vitro. The GPI-modified cell wall proteins GCW21, GCW51, and GCW61 of Pichia pastoris were chosen as anchoring proteins to construct co-expression strains in P. pastoris GS115. The hydrolytic activity and the amount of Candida antarctica lipase B (CALB) displayed on cell surface increased significantly following optimization of the fusion gene dosage and combination of the homogeneous or heterogeneous cell wall proteins. Maximum CALB hydrolytic activity was achieved at 4920 U/g dry cell weight in strain GS115/CALB-GCW (51 + 51 + 61 + 61) after 120 h of methanol induction. Changes in structural morphology and the properties of the cell surfaces caused by co-expression of fusion proteins were observed by transmission electron microscopy (TEM) and on plates containing cell-wall-destabilizing reagent. Our results suggested that both the outer and inner cell layers were significantly altered by overexpression of GPI-modified cell wall proteins. Interestingly, quantitative analysis of the inner layer components showed an increase in β-1,3-glucan, but no obvious changes in chitin in the strains overexpressing GPI-modified cell wall proteins.
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Affiliation(s)
- Pan Wang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Li Zhang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Rebecca Fisher
- Wadsworth Center, New York State Department of Health, Albany, NY, 12201, USA
| | - Meiqi Chen
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Shuli Liang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Shuangyan Han
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Suiping Zheng
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Haixin Sui
- Wadsworth Center, New York State Department of Health, Albany, NY, 12201, USA
| | - Ying Lin
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China.
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235
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Giri A, Hartmann KE, Aldrich MC, Ward RM, Wu JM, Park AJ, Graff M, Qi L, Nassir R, Wallace RB, O'Sullivan MJ, North KE, Velez Edwards DR, Edwards TL. Admixture mapping of pelvic organ prolapse in African Americans from the Women's Health Initiative Hormone Therapy trial. PLoS One 2017; 12:e0178839. [PMID: 28582460 PMCID: PMC5459562 DOI: 10.1371/journal.pone.0178839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 05/19/2017] [Indexed: 12/27/2022] Open
Abstract
Evidence suggests European American (EA) women have two- to five-fold increased odds of having pelvic organ prolapse (POP) when compared with African American (AA) women. However, the role of genetic ancestry in relation to POP risk is not clear. Here we evaluate the association between genetic ancestry and POP in AA women from the Women’s Health Initiative Hormone Therapy trial. Women with grade 1 or higher classification, and grade 2 or higher classification for uterine prolapse, cystocele or rectocele at baseline or during follow-up were considered to have any POP (N = 805) and moderate/severe POP (N = 156), respectively. Women with at least two pelvic exams with no indication for POP served as controls (N = 344). We performed case-only, and case-control admixture-mapping analyses using multiple logistic regression while adjusting for age, BMI, parity and global ancestry. We evaluated the association between global ancestry and POP using multiple logistic regression. European ancestry at the individual level was not associated with POP risk. Case-only and case-control local ancestry analyses identified two ancestry-specific loci that may be associated with POP. One locus (Chromosome 15q26.2) achieved empirically-estimated statistical significance and was associated with decreased POP odds (considering grade ≥2 POP) with each unit increase in European ancestry (OR: 0.35; 95% CI: 0.30, 0.57; p-value = 1.48x10-5). This region includes RGMA, a potent regulator of the BMP family of genes. The second locus (Chromosome 1q42.1-q42.3) was associated with increased POP odds with each unit increase in European ancestry (Odds ratio [OR]: 1.69; 95% confidence interval [CI]: 1.28, 2.22; p-value = 1.93x10-4). Although this region did not reach statistical significance after considering multiple comparisons, it includes potentially relevant genes including TBCE, and ACTA1. Unique non-overlapping European and African ancestry-specific susceptibility loci may be associated with increased POP risk.
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Affiliation(s)
- Ayush Giri
- Vanderbilt Epidemiology Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Katherine E. Hartmann
- Vanderbilt Epidemiology Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Melinda C. Aldrich
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Renee M. Ward
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Jennifer M. Wu
- Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Amy J. Park
- Department of Obstetrics and Gynecology, Georgetown University School of Medicine, Washington, District of Columbia, United States of America
| | - Mariaelisa Graff
- Department of Epidemiology, Gillings School of Global Public health, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Lihong Qi
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of California, Davis, Davis, California, United States of America
| | - Rami Nassir
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, California, United States of America
- Department of Internal Medicine, University of California, Davis, Davis, California, United States of America
| | - Robert B. Wallace
- Department of Epidemiology, University of Iowa College of Public Health, Iowa City, Iowa, United States of America
| | - Mary J. O'Sullivan
- Department of Obstetrics and Gynecology, Miller School of Medicine, Miami, Florida, United States of America
| | - Kari E. North
- Department of Epidemiology, Gillings School of Global Public health, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Digna R. Velez Edwards
- Vanderbilt Epidemiology Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Todd L. Edwards
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- * E-mail:
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236
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Rahmoon MA, Youness RA, Gomaa AI, Hamza MT, Waked I, El Tayebi HM, Abdelaziz AI. MiR-615-5p depresses natural killer cells cytotoxicity through repressing IGF-1R in hepatocellular carcinoma patients. Growth Factors 2017; 35:76-87. [PMID: 28747084 DOI: 10.1080/08977194.2017.1354859] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
miR-615-5p was characterized by our group as a tumour suppressor. IGF-1 R activates a downstream signalling pathway, well characterized in liver cells, however, its role in immunity especially Natural Killer cells (NKs) remains vague. This study aimed at investigating the regulatory role of miR-615-5p on IGF signalling and its impact on NKs cytotoxicity in HCC. Our results showed an upregulation in miR-615-5p and IGF-1 R in NKs of 130 HCC patients compared to 35 controls. Forcing the expression of miR-615-5p, repressed IGF-IR, attenuated NKs cytotoxicity, decreased CD56dim, increased CD56bright NK subsets and reduced the cytotoxic markers NKG2D, TNF-α and perforins. It repressed NKG2D ligand (ULBP2) in Huh-7 cells. In conclusion, miR-615-5p represses IGF-1 R in NKs and their target hepatocytes; however, it has a contradicting impact on HCC progression on both cell types. These findings might pave the way for better understanding the role of microRNAs in NKs function and HCC immune-pathogenesis.
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Affiliation(s)
- Mai Atef Rahmoon
- a Department of Pharmaceutical Biology , German University in Cairo , Cairo , Egypt
| | - Rana Ahmed Youness
- a Department of Pharmaceutical Biology , German University in Cairo , Cairo , Egypt
| | - Asmaa Ibrahim Gomaa
- b Department of Hepatology , National Liver Institute, Menoufiya University , Menoufiya , Egypt
| | | | - Imam Waked
- b Department of Hepatology , National Liver Institute, Menoufiya University , Menoufiya , Egypt
| | - Hend Mohamed El Tayebi
- d Department of Pharmacology and Toxicology , German University in Cairo , Cairo , Egypt
| | - Ahmed Ihab Abdelaziz
- d Department of Pharmacology and Toxicology , German University in Cairo , Cairo , Egypt
- e Department of Biology , American University in Cairo , New Cairo , Egypt
- f School of Medicine , NewGiza University (NGU) , Giza , Egypt
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237
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Waluga M, Kukla M, Zorniak M, Kajor M, Liszka L, Dyaczynski M, Kowalski G, Zadlo D, Waluga E, Olczyk P, Buldak RJ, Berdowska A, Hartleb M. Fibroblast growth factor-21 and omentin-1 hepatic mRNA expression and serum levels in morbidly obese women with non-alcoholic fatty liver disease. J Physiol Pharmacol 2017; 68:363-374. [PMID: 28820393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/29/2017] [Indexed: 06/07/2023]
Abstract
Fibroblast growth factor-21 (FGF21) and omentin-1 have been recognized as potent antidiabetic agents with potential hepatoprotective activity. The aim of this study was to evaluate hepatic FGF21 and omentin-1 mRNA expression as well as their serum levels as predictive markers of liver injury and insulin resistance in morbidly obese women with non-alcoholic fatty liver disease (NAFLD). This study included 56 severely obese women who underwent intraoperative wedge liver biopsy during the bariatric surgery. Hepatic FGF21 and omentin-1 mRNA were assessed by quantitative real-time PCR, while their serum concentrations were measured with commercially available enzyme-linked immunosorbent assays. The FGF21 serum level was significantly higher in patients with a greater extent of steatosis (grade 2 and 3) compared to those without or with mild steatosis (grade 0 and 1) (P = 0.049). Receiver Operating Characteristic analysis, however, showed poor discriminant power for the FGF21 serum levels in differentiating between more and less extensive steatosis with an AUC = 0.666. There was a tendency towards higher levels of hepatic FGF21 mRNA in patients with lobular inflammation and fibrosis and towards lower levels in the case of hepatocyte ballooning and steatosis. There was a positive mutual correlation between hepatic FGF21 and omentin-1 mRNA levels (r = 0.78; P < 0.001). Fibrosis stage was associated with serum glucose and homeostatic model assessment for insulin resistance (HOMA-IR) (P = 0.03 and P = 0.02, respectively). Serum omentin-1 was not associated with histopathological features. The hepatic omentin-1 mRNA levels showed a tendency to be lower in patients with advanced steatosis and hepatocyte ballooning. In conclusion, our study, which focused on hepatic FGF21 and omentin-1 mRNA expression, confirmed marked expression of both molecules in the liver of morbidly obese patients with NAFLD. More extensive steatosis was associated with evident changes in the serum FGF21 concentration in morbidly obese women with NAFLD, but the difference did not reach statistical significance. The vast amount of fat, both visceral and subcutaneous, in severely obese patients may be the additional source and influence the FGF21 and omentin-1 serum levels.
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Affiliation(s)
- M Waluga
- Chair and Department of Gastroenterology and Hepatology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - M Kukla
- Chair and Department of Gastroenterology and Hepatology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.
| | - M Zorniak
- Chair and Department of Gastroenterology and Hepatology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - M Kajor
- Department of Patomorphology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - L Liszka
- Department of Patomorphology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - M Dyaczynski
- Department of Surgery, Municipal Hospital in Siemianowice Slaskie, Poland
| | - G Kowalski
- Department of General Surgery and Endocrinological Surgery, School of Public Health in Bytom, Medical University of Silesia, Bytom, Poland
| | - D Zadlo
- Department of General Surgery and Endocrinological Surgery, School of Public Health in Bytom, Medical University of Silesia, Bytom, Poland
| | - E Waluga
- Department of Community Pharmacy, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Sosnowiec, Poland
| | - P Olczyk
- Department of Community Pharmacy, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Sosnowiec, Poland
| | - R J Buldak
- Chair and Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Zabrze, Poland
| | - A Berdowska
- Department of Microbiology and Biotechnology, Jan Dlugosz University, Czestochowa, Poland
| | - M Hartleb
- Chair and Department of Gastroenterology and Hepatology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
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238
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Kowshik J, Mishra R, Sophia J, Rautray S, Anbarasu K, Reddy GD, Dixit M, Mahalingam S, Nagini S. Nimbolide upregulates RECK by targeting miR-21 and HIF-1α in cell lines and in a hamster oral carcinogenesis model. Sci Rep 2017; 7:2045. [PMID: 28515436 PMCID: PMC5435722 DOI: 10.1038/s41598-017-01960-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 04/05/2017] [Indexed: 01/02/2023] Open
Abstract
Reversion-inducing cysteine-rich protein with Kazal motifs (RECK), a potent inhibitor of matrix metalloproteinases (MMPs) is a common negative target of oncogenic signals and a potential therapeutic target for novel drug development. Here, we show that sequential RECKlessness stimulates angiogenesis and Notch signalling in the 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinogenesis model, a paradigm for oral oncogenesis and chemointervention. We also report the chemotherapeutic effect of nimbolide, a limonoid from the neem tree (Azadirachta indica) based on the upregulation of RECK as well as modulation of the expression of key molecules involved in invasion and angiogenesis. We demonstrate that nimbolide upregulates RECK by targeting miR-21, and HIF-1α resulting in reduced MMP activity and blockade of VEGF and Notch signalling. Nimbolide reduced microvascular density, confirming its anti-angiogenic potential. Molecular docking analysis revealed interaction of nimbolide with HIF-1α. Additionally, we demonstrate that nimbolide upregulates RECK expression via downregulation of HIF-1α and miR-21 by overexpression and knockdown experiments in SCC4 and EAhy926 cell lines. Taken together, these findings provide compelling evidence that targeting RECK, a keystone protein that regulates mediators of invasion and angiogenesis with phytochemicals such as nimbolide may be a robust therapeutic approach to prevent oral cancer progression.
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Affiliation(s)
- Jaganathan Kowshik
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Rajakishore Mishra
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe, Ranchi, 835205, Jharkhand, India
| | - Josephraj Sophia
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Satabdi Rautray
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Kumaraswamy Anbarasu
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - G Deepak Reddy
- Medicinal Chemistry Research Division, Vishnu Institute of Pharmaceutical Education and Research, Narsapur, India
| | - Madhulika Dixit
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Sundarasamy Mahalingam
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India.
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Mrozikiewicz-Rakowska B, Sobczyk-Kopcioł A, Szymański K, Nehring P, Szatkowski P, Bartkowiak-Wieczorek J, Bogacz A, Aniszczuk A, Drygas W, Płoski R, Czupryniak L. Role of the rs2274907 allelic variant of the ITLN1 gene in patients with diabetic foot. Pol Arch Intern Med 2017; 127:319-327. [PMID: 28442700 DOI: 10.20452/pamw.4008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Diabetic foot (DF) is a serious complication of diabetes mellitus (DM) that occurs due to neuropathy or atherosclerosis of the lower limbs. Omentin (encoded by the ITLN1 gene) has been implicated as a protective factor in vascular complications of diabetes, likely due to its endothelial vasodilator activity and its anti‑inflammatory actions. However, susceptibility to DF with respect to the allelic variants of the ITLN1 gene has not been studied so far. OBJECTIVES This study aimed to evaluate the association between the rs2274907 allelic variant of the ITLN1 gene and the occurrence of DF in patients with type 2 diabetes mellitus (T2DM). PATIENTS AND METHODS The study included 670 individuals: 204 with T2DM and DF (DF group), 299 with T2DM without DF (T2DM group), and 167 healthy controls. RESULTS Ischemic heart disease, retinopathy, nephropathy, neuropathy, obesity, hyperlipidemia, and active smoking were more frequent in the DF group than in the T2DM group. Allele A of the rs2274907 variant was observed more frequently in the DF group compared with healthy controls in an additive model (odds ratio [OR] = 0.7, P = 0.034). This effect was also sex‑specific for males in both the additive and recessive models (OR = 0.6, P = 0.015 and OR = 0.52, P = 0.0017, respectively). However, no differences in the distribution of alleles was observed between the DF and T2DM groups. CONCLUSIONS The rs2274907 variant of the ITLN1 gene is associated with increased prevalence of DF.
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Guha M, Saare M, Maslovskaja J, Kisand K, Liiv I, Haljasorg U, Tasa T, Metspalu A, Milani L, Peterson P. DNA breaks and chromatin structural changes enhance the transcription of autoimmune regulator target genes. J Biol Chem 2017; 292:6542-6554. [PMID: 28242760 PMCID: PMC5399106 DOI: 10.1074/jbc.m116.764704] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/30/2017] [Indexed: 12/22/2022] Open
Abstract
The autoimmune regulator (AIRE) protein is the key factor in thymic negative selection of autoreactive T cells by promoting the ectopic expression of tissue-specific genes in the thymic medullary epithelium. Mutations in AIRE cause a monogenic autoimmune disease called autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy. AIRE has been shown to promote DNA breaks via its interaction with topoisomerase 2 (TOP2). In this study, we investigated topoisomerase-induced DNA breaks and chromatin structural alterations in conjunction with AIRE-dependent gene expression. Using RNA sequencing, we found that inhibition of TOP2 religation activity by etoposide in AIRE-expressing cells had a synergistic effect on genes with low expression levels. AIRE-mediated transcription was not only enhanced by TOP2 inhibition but also by the TOP1 inhibitor camptothecin. The transcriptional activation was associated with structural rearrangements in chromatin, notably the accumulation of γH2AX and the exchange of histone H1 with HMGB1 at AIRE target gene promoters. In addition, we found the transcriptional up-regulation to co-occur with the chromatin structural changes within the genomic cluster of carcinoembryonic antigen-like cellular adhesion molecule genes. Overall, our results suggest that the presence of AIRE can trigger molecular events leading to an altered chromatin landscape and the enhanced transcription of low-expressed genes.
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Affiliation(s)
- Mithu Guha
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine
| | - Mario Saare
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine
| | - Julia Maslovskaja
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine
| | - Kai Kisand
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine
| | - Ingrid Liiv
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine
| | - Uku Haljasorg
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine
| | | | - Andres Metspalu
- Estonian Genome Center, and
- Institute of Molecular and Cell Biology, University of Tartu, Tartu 50411, Estonia
| | | | - Pärt Peterson
- From the Molecular Pathology, Institute of Biomedical and Translational Medicine,
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Xing X, Cai W, Ma S, Wang Y, Shi H, Li M, Jiao J, Yang Y, Liu L, Zhang X, Chen M. Down-regulated expression of OPCML predicts an unfavorable prognosis and promotes disease progression in human gastric cancer. BMC Cancer 2017; 17:268. [PMID: 28407749 PMCID: PMC5391589 DOI: 10.1186/s12885-017-3203-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 03/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND OPCML belongs to the IgLON family of Ig domain-containing GPI-anchored cell adhesion molecules and was recently found to be involved in carcinogenesis, while its role in gastric cancer remains unclear. METHODS We assessed expression and biological behavior of OPCML in gastric cancer. RESULTS OPCML expression was markedly reduced in tumor tissues and cancer cell lines. Decreased OPCML expression had a significant association with unfavorable tumor stage (p = 0.007) and grading (p < 0.001). Furthermore, the results revealed that OPCML was an independent prognostic factor for overall survival in gastric cancer (p = 0.002). In addition, ectopic expression of OPCML in cancer cells significantly inhibited cell viability (p < 0.01) and colony formation (p < 0.001), arrest cell cycle in G0/G1 phase and induced apoptosis, and suppressed tumor formation in nude mice. The alterations of phosphorylation status of AKT and its substrate GSK3β, up-regulation of pro-apoptotic regulators including caspase-3, caspase-9 and PARP, and up-regulation of cell cycle regulator p27, were implicated in the biological activity of OPCML in cancer cells. CONCLUSION Down-regulated OPCML expression might serve as an independent predictor for unfavorable prognosis of patients, and the biological behavior supports its role as a tumor suppressor in gastric cancer.
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Affiliation(s)
- Xiangbin Xing
- Department of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080 China
| | - Weibin Cai
- Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, 510089 China
| | - Sanmei Ma
- Department of Biotechnology, Jinan University, Guangzhou, 510632 China
| | - Yongfei Wang
- Department of Biotechnology, Jinan University, Guangzhou, 510632 China
| | - Huijuan Shi
- Department of Pathology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080 China
| | - Ming Li
- Department of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080 China
- Department of Biotechnology, Jinan University, Guangzhou, 510632 China
| | - Jinxia Jiao
- Department of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080 China
- Department of Biotechnology, Jinan University, Guangzhou, 510632 China
| | - Yang Yang
- Department of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080 China
- Department of Biotechnology, Jinan University, Guangzhou, 510632 China
| | - Longshan Liu
- Department of Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080 China
| | - Xiangliang Zhang
- Department of Abdominal Surgery (Section 2), Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou, 510095 China
| | - Minhu Chen
- Department of Gastroenterology, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan II Road, Guangzhou, 510080 China
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Uitto J, Li Q, van de Wetering K, Váradi A, Terry SF. Insights into Pathomechanisms and Treatment Development in Heritable Ectopic Mineralization Disorders: Summary of the PXE International Biennial Research Symposium-2016. J Invest Dermatol 2017; 137:790-795. [PMID: 28340679 PMCID: PMC5831331 DOI: 10.1016/j.jid.2016.12.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/07/2016] [Accepted: 12/11/2016] [Indexed: 02/06/2023]
Abstract
Pseudoxanthoma elasticum is a prototype of heritable ectopic mineralization disorders, with phenotypic overlap with generalized arterial calcification of infancy and arterial calcification due to CD73 deficiency. Recent observations have suggested that the reduced inorganic pyrophosphate/phosphate ratio is the cause of soft connective tissue mineralization in these disorders. PXE International, a patient advocacy organization, supports research in part by sponsoring biennial research symposia on these disorders; the latest meeting was held in September 2016 at Thomas Jefferson University, Philadelphia. This report summarizes the progress in pseudoxanthoma elasticum and other ectopic mineralization disorders, as presented in the symposium, with focus on translational aspects of precision medicine toward improved diagnostics and treatment development for these currently intractable disorders.
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Affiliation(s)
- Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, and PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
| | - Qiaoli Li
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, and PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Koen van de Wetering
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, and PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - András Váradi
- Institute of Enzymology, RCNS, Hungarian Academy of Sciences, Budapest, Hungary
| | - Sharon F Terry
- PXE International, Washington, District of Columbia, USA
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Abstract
Exclusive enteral nutrition is established as an initial therapy to induce remission in active Crohn's disease (CD), especially in children, but the mechanisms of action of this therapy are yet to be fully defined. Intestinal alkaline phosphatase (IAP), a recognised marker of enterocyte differentiation, is implicated in the innate gut immune response to enteric pathogens. Using the Caco-2 human adenocarcinoma cell line, this study showed that the incubation of human cells with a polymeric formula (PF) resulted in a dose-dependent increase in the expression of IAP on the cell surface. While further investigation is required to determine the pathway(s) involved, this finding suggests that cell surface-associated IAP may be an aspect of the gut's innate immune response to pathogenic bacteria that is strengthened by PF in the setting of CD.
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Affiliation(s)
- Gabrielle R Budd
- 1 Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
| | - Alan Aitchison
- 1 Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
| | - Andrew S Day
- 2 Department of Pediatrics, University of Otago Christchurch, Christchurch, New Zealand
| | - Jacqueline I Keenan
- 1 Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
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Pu L, Meng M, Wu J, Zhang J, Hou Z, Gao H, Xu H, Liu B, Tang W, Jiang L, Li Y. Compared to the amniotic membrane, Wharton's jelly may be a more suitable source of mesenchymal stem cells for cardiovascular tissue engineering and clinical regeneration. Stem Cell Res Ther 2017; 8:72. [PMID: 28320452 PMCID: PMC5359832 DOI: 10.1186/s13287-017-0501-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 01/23/2017] [Accepted: 02/09/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The success of developing cardiovascular tissue engineering (CTE) grafts greatly needs a readily available cell substitute for endothelial and interstitial cells. Perinatal annexes have been proposed as a valuable source of mesenchymal stem cells (MSCs) for tissue engineering and regenerative medicine. The objective of the present study is to evaluate the potential of human Wharton's jelly MSCs (WJ-MSCs) and amniotic membrane MSCs (AM-MSCs) as a seeding cell in CTE and cardiovascular regenerative medicine. METHODS WJ-MSCs/AM-MSCs were isolated and characterized in vitro according to their morphology, proliferation, self-renewal, phenotype, and multipotency. More importantly, the characteristics of hemocompatibility, extracellular matrix deposition, and gene expression and viability of both MSCs were investigated. RESULTS Fibroblast-like human WJ-MSCs and AM-MSCs were successfully isolated and positively expressed the characteristic markers CD73, CD90, and CD105 but were negative for CD34, CD45, and HLA-DR. Both MSCs shared trilineage differentiation toward the adipogenic, osteogenic, and chondrogenic lineages. The proliferative and self-renewal capacity of WJ-MSCs was significantly higher than that of AM-MSCs (P < 0.001). WJ-MSCs provided comparable properties of antiplatelet adhesion and did not activate the coagulation cascade to endothelial cells. However, aggregated platelets were visualized on the surface of AM-MSCs-derived cell sheets and the intrinsic pathway was activated. Furthermore, WJ-MSCs have superior properties of collagen deposition and higher viability than AM-MSCs during cell sheet formation. CONCLUSIONS This study highlights that WJ-MSCs could act as a functional substitute of endothelial and interstitial cells, which could serve as an appealing and practical single-cell source for CTE and regenerative therapy.
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Affiliation(s)
- Lei Pu
- Department of Cardiovascular Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Mingyao Meng
- Central Laboratory, Yan’an Affiliated Hospital of Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Jian Wu
- Department of Cardiovascular Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
- Cardiovascular Surgery Institute of Yunnan, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Jing Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Kunming Medical University, 374, Dianmian Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Zongliu Hou
- Central Laboratory, Yan’an Affiliated Hospital of Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Hui Gao
- Central Laboratory, Yan’an Affiliated Hospital of Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Hui Xu
- Department of Thoracic Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Boyu Liu
- Department of Cardiovascular Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Weiwei Tang
- Central Laboratory, Yan’an Affiliated Hospital of Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
| | - Lihong Jiang
- Department of Cardiovascular Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
- Cardiovascular Surgery Institute of Yunnan, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
- First People’s Hospital of Yunnan Province, 157, Jinbi Road, Kunming, Yunnan People’s Republic of China
| | - Yaxiong Li
- Department of Cardiovascular Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming Medical University, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
- Cardiovascular Surgery Institute of Yunnan, 245, East of Renmin Road, Kunming, 650051 Yunnan People’s Republic of China
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Koyama Y, Wang P, Liang S, Iwaisako K, Liu X, Xu J, Zhang M, Sun M, Cong M, Karin D, Taura K, Benner C, Heinz S, Bera T, Brenner DA, Kisseleva T. Mesothelin/mucin 16 signaling in activated portal fibroblasts regulates cholestatic liver fibrosis. J Clin Invest 2017; 127:1254-1270. [PMID: 28287406 DOI: 10.1172/jci88845] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 01/11/2017] [Indexed: 01/18/2023] Open
Abstract
Cholestatic liver fibrosis is caused by obstruction of the biliary tract and is associated with early activation of portal fibroblasts (PFs) that express Thy-1, fibulin 2, and the recently identified marker mesothelin (MSLN). Here, we have demonstrated that activated PFs (aPFs) and myofibroblasts play a critical role in the pathogenesis of liver fibrosis induced by bile duct ligation (BDL). Conditional ablation of MSLN+ aPFs in BDL-injured mice attenuated liver fibrosis by approximately 50%. Similar results were observed in MSLN-deficient mice (Msln-/- mice) or mice deficient in the MSLN ligand mucin 16 (Muc16-/- mice). In vitro analysis revealed that MSLN regulates TGF-β1-inducible activation of WT PFs by disrupting the formation of an inhibitory Thy-1-TGFβRI complex. MSLN also facilitated the FGF-mediated proliferation of WT aPFs. Therapeutic administration of anti-MSLN-blocking Abs attenuated BDL-induced fibrosis in WT mice. Liver specimens from patients with cholestatic liver fibrosis had increased numbers of MSLN+ aPFs/myofibroblasts, suggesting that MSLN may be a potential target for antifibrotic therapy.
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246
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Huang CJ, Yuan YF, Wu D, Khan FA, Jiao XF, Huo LJ. The cohesion stabilizer sororin favors DNA repair and chromosome segregation during mouse oocyte meiosis. In Vitro Cell Dev Biol Anim 2017; 53:258-264. [PMID: 27826797 DOI: 10.1007/s11626-016-0107-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 10/11/2016] [Indexed: 12/11/2022]
Abstract
Maintenance and timely termination of cohesion on chromosomes ensures accurate chromosome segregation to guard against aneuploidy in mammalian oocytes and subsequent chromosomally abnormal pregnancies. Sororin, a cohesion stabilizer whose relevance in antagonizing the anti-cohesive property of Wings-apart like protein (Wapl), has been characterized in mitosis; however, the role of Sororin remains unclear during mammalian oocyte meiosis. Here, we show that Sororin is required for DNA damage repair and cohesion maintenance on chromosomes, and consequently, for mouse oocyte meiotic program. Sororin is constantly expressed throughout meiosis and accumulates on chromatins at germinal vesicle (GV) stage/G2 phase. It localizes onto centromeres from germinal vesicle breakdown (GVBD) to metaphase II stage. Inactivation of Sororin compromises the GVBD and first polar body extrusion (PBE). Furthermore, Sororin inactivation induces DNA damage indicated by positive γH2AX foci in GV oocytes and precocious chromatin segregation in MII oocytes. Finally, our data indicate that PlK1 and MPF dissociate Sororin from chromosome arms without affecting its centromeric localization. Our results define Sororin as a determinant during mouse oocyte meiotic maturation by favoring DNA damage repair and chromosome separation, and thereby, maintaining the genome stability and generating haploid gametes.
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Affiliation(s)
- Chun-Jie Huang
- College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry Education, Huazhong Agricultural University, Wuhan, China
| | - Yi-Feng Yuan
- Department of Gynecology and Obstetrics, Peking University Third University, Beijing, China
| | - Di Wu
- College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry Education, Huazhong Agricultural University, Wuhan, China
| | - Faheem Ahmed Khan
- College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry Education, Huazhong Agricultural University, Wuhan, China
| | - Xiao-Fei Jiao
- College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry Education, Huazhong Agricultural University, Wuhan, China
| | - Li-Jun Huo
- College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry Education, Huazhong Agricultural University, Wuhan, China.
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247
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Liu Y, Qin Z, Yang K, Liu R, Xu Y. Cripto-1 promotes epithelial-mesenchymal transition in prostate cancer via Wnt/β-catenin signaling. Oncol Rep 2017; 37:1521-1528. [PMID: 28098905 DOI: 10.3892/or.2017.5378] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 12/21/2016] [Indexed: 11/05/2022] Open
Abstract
The Cripto-1 (CR-1) derived EGF-CFC family was overexpressed in tumor development enhancing proliferation, epithelial-mesenchymal transition (EMT) and migration of tumor cells. However, correlation between CR-1 and prostate cancer (PCa) remains still unclear. In the present study, we proved that CR-1 was expressed in PCa and its function was in the progression of PCa. Compared with benign prostatic hyperplasia (BPH) tissues, we confirmed that PCa tissues had high expression of CR-1 by immunohistochemistry and statistical data showed that CR-1 promoted properties of EMT in PCa tissues, including the downregulation of the cell adhesion molecules β-catenin (membrane) and E-cadherin while upregulating transcription factors β-catenin. Overexpression of CR-1 had close relationship with PSA, Gleason, clinical staging and lymph node metastasis in PCa patients. Then, we found that PC-3 cells transfected with CR-1-shRNA inhibited EMT using RT-PCR, RT-qPCR, western blotting and immunofluorescence. Also, we evaluated cell invasive ability in vitro by transwell and wound-healing assay. Our data showed that transfected CR-1-shRNA altered EMT including β-catenin, E-cadherin, c-myc, GSK-3, p-GSK and Wnt/β-catenin pathway in PC-3. It also suppressed PC-3 cell migration. Additionally, our results displayed that Licl had antitumor activity against PC-3 through the inhibition of Wnt/β-catenin pathway. Inhibition of cell viability was dose-time dependent. The present study proved that CR-1 regulates EMT of PCa by Wnt/β-catenin pathway. Hence, CR-1 may provide a new biological marker, and possibly contributes to clinical treatment against PCa.
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Affiliation(s)
- Yan Liu
- Prostate Disease Laboratory, Tianjin Institute of Urology, Tianjin 300211, P.R. China
| | - Zhenbang Qin
- Prostate Disease Laboratory, Tianjin Institute of Urology, Tianjin 300211, P.R. China
| | - Kuo Yang
- Prostate Disease Laboratory, Tianjin Institute of Urology, Tianjin 300211, P.R. China
| | - Ranlu Liu
- Prostate Disease Laboratory, Tianjin Institute of Urology, Tianjin 300211, P.R. China
| | - Yong Xu
- Prostate Disease Laboratory, Tianjin Institute of Urology, Tianjin 300211, P.R. China
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Rothe H, Brandenburg V, Haun M, Kollerits B, Kronenberg F, Ketteler M, Wanner C. Ecto-5' -Nucleotidase CD73 (NT5E), vitamin D receptor and FGF23 gene polymorphisms may play a role in the development of calcific uremic arteriolopathy in dialysis patients - Data from the German Calciphylaxis Registry. PLoS One 2017; 12:e0172407. [PMID: 28212442 PMCID: PMC5315275 DOI: 10.1371/journal.pone.0172407] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 02/03/2017] [Indexed: 12/21/2022] Open
Abstract
Introduction Calciphylaxis/calcific uremic arteriolopathy affects mainly end-stage kidney disease patients but is also associated with malignant disorders such as myeloma, melanoma and breast cancer. Genetic risk factors of calciphylaxis have never been studied before. Methods We investigated 10 target genes using a tagging SNP approach: the genes encoding CD73/ ecto-5'-nucleotidase (purinergic pathway), Matrix Gla protein, Fetuin A, Bone Gla protein, VKORC1 (all related to intrinsic calcification inhibition), calcium-sensing receptor, FGF23, Klotho, vitamin D receptor, stanniocalcin 1 (all related to CKD-MBD). 144 dialysis patients from the German calciphylaxis registry were compared with 370 dialysis patients without history of CUA. Genotyping was performed using iPLEX Gold MassARRAY(Sequenom, San Diego, USA), KASP genotyping chemistry (LGC, Teddington, Middlesex, UK) or sequencing. Statistical analysis comprised logistic regression analysis with adjustment for age and sex. Results 165 SNPs were finally analyzed and 6 SNPs were associated with higher probability for calciphylaxis (OR>1) in our cohort. Nine SNPs of three genes (CD73, FGF23 and Vitamin D receptor) reached nominal significance (p< 0.05), but did not reach statistical significance after correction for multiple testing. Of the CD73 gene, rs4431401 (OR = 1.71, 95%CI 1.08–2.17, p = 0.023) and rs9444348 (OR = 1.48, 95% CI 1.11–1.97, p = 0.008) were associated with a higher probability for CUA. Of the FGF23 and VDR genes, rs7310492, rs11063118, rs13312747 and rs17882106 were associated with a higher probability for CUA. Conclusion Polymorphisms in the genes encoding CD73, vitamin D receptor and FGF23 may play a role in calciphylaxis development. Although our study is the largest genetic study on calciphylaxis, it is limited by the low sample sizes. It therefore requires replication in other cohorts if available.
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Affiliation(s)
- Hansjörg Rothe
- Klinikum Coburg, Coburg, Germany
- Department of Medicine, Division of Nephrology, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
- * E-mail:
| | | | - Margot Haun
- Division for Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Barbara Kollerits
- Division for Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Florian Kronenberg
- Division for Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Christoph Wanner
- Department of Medicine, Division of Nephrology, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
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Shao YY, Zhang TL, Wu LX, Zou HC, Li S, Huang J, Zhou HH. AKT Axis, miR-21, and RECK Play Pivotal Roles in Dihydroartemisinin Killing Malignant Glioma Cells. Int J Mol Sci 2017; 18:ijms18020350. [PMID: 28208619 PMCID: PMC5343885 DOI: 10.3390/ijms18020350] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/04/2017] [Accepted: 01/31/2017] [Indexed: 12/30/2022] Open
Abstract
Dihydroartemisinin (DHA), a semi-synthetic derivative of artemisinin, is known to play important roles in inhibiting proliferation rate, inducing apoptosis, as well as hindering the metastasis and invasion of glioma cells, but the underlying mechanisms are still unclear so far. In this study, methyl thiazolyl tetrazolium (MTT), colony-forming, wound healing, invasion, and apoptosis assays were performed to investigate the effect of DHA on malignant glioma cells. Results showed that DHA induced apoptosis of malignant glioma cells through Protein Kinase B (AKT) axis, induced death of malignant glioma cells by downregulating miR-21, and inhibited the invasion of malignant glioma cells corresponding with up-regulation of the reversion-inducing-cysteine-rich protein with kazal motifs (RECK). These results revealed that AKT axis, miR-21, and RECK play pivotal roles in DHA killing malignant glioma cells, suggesting that DHA is a potential agent for treating glioma.
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Affiliation(s)
- Ying-Ying Shao
- Institute of Life Sciences, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing 400016, China.
| | - Tao-Lan Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha 410078, China.
| | - Lan-Xiang Wu
- Institute of Life Sciences, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing 400016, China.
| | - He-Cun Zou
- Institute of Life Sciences, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing 400016, China.
| | - Shuang Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha 410078, China.
| | - Jin Huang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha 410078, China.
| | - Hong-Hao Zhou
- Institute of Life Sciences, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing 400016, China.
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Abstract
It is known that iron overload may lead to an increased risk for many diseases. According to GWAS studies, iron regulatory protein HFE gene variant H63D (rs1799945) was associated with hypertension, an observation which we were able to confirm also in our TAMRISK cohort. Thus, it is possible that abnormalities in iron homeostasis may predispose to hypertension. This prompted us to study whether there is an association between hypertension and another iron overload-associated gene, hemojuvelin (HJV), which has 2 common polymorphic sites (rs 16827043, rs7536827).The study included 336 hypertensive cases and 480 controls. All participants were 50- year-old Finnish men and women, and the data was collected from the Tampere adult population cardiovascular risk study (TAMRISK). Genotypes were determined using Competitive Allelic Specific PCR (KASP).We found that the minor variant of the HJV polymorphic site rs16827043 (G-allele) is a statistically significant factor associated with hypertension among 50 year-old individuals compared with the AA genotype carriers (OR = 1.66, 95% CI: 1.06 - 2.60, P = 0.03). The risk was even higher when overweight subjects (BMI>30) were excluded from the analyses. For the other polymorphic variant rs7536827, association with hypertension was found only among normal or slightly overweight A-allele carriers.In conclusion, HJV genetic variants were associated with essential hypertension in Finnish subjects from the TAMRISK cohort. Previous studies together with the present one indicate that individuals with possible dysregulation of iron metabolism may have higher risk for hypertension than those with normal iron homeostasis.
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Affiliation(s)
- Seppo T. Nikkari
- Department of Medical Biochemistry, Faculty of Medicine and Life Sciences, University of Tampere, Finland
- Fimlab laboratories, Tampere, Finland
| | - Anni-Laura Visto
- Department of Medical Biochemistry, Faculty of Medicine and Life Sciences, University of Tampere, Finland
| | - Kirsi M. Määttä
- Department of Medical Biochemistry, Faculty of Medicine and Life Sciences, University of Tampere, Finland
| | - Tarja A. Kunnas
- Department of Medical Biochemistry, Faculty of Medicine and Life Sciences, University of Tampere, Finland
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