Dihazi, Hassan

[["dc.bibliographiccitation.firstpage","jcs219014"],["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Journal of Cell Science"],["dc.bibliographiccitation.volume","131"],["dc.contributor.author","Dihazi, Hassan"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Bibi, Asima"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Mueller, Claudia A."],["dc.contributor.author","Asif, Abdul R."],["dc.contributor.author","Rubel, Diana"],["dc.contributor.author","Vasko, Radovan"],["dc.contributor.author","Mueller, Gerhard A."],["dc.date.accessioned","2020-12-10T18:41:52Z"],["dc.date.available","2020-12-10T18:41:52Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1242/jcs.219014"],["dc.identifier.eissn","1477-9137"],["dc.identifier.issn","0021-9533"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77711"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.iserratumof","/handle/2/29071"],["dc.title","Correction: Secretion of ERP57 is important for extracellular matrix accumulation and progression of renal fibrosis, and is an early sign of disease onset (doi:10.1242/jcs.125088)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","erratum_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","99"],["dc.bibliographiccitation.journal","European Journal of Pharmacology"],["dc.bibliographiccitation.lastpage","110"],["dc.bibliographiccitation.volume","784"],["dc.contributor.author","Trivedi, Rachana"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Mishra, Durga P."],["dc.contributor.author","Mueller, Georg Anton"],["dc.contributor.author","Dihazi, Hassan"],["dc.date.accessioned","2018-11-07T10:10:18Z"],["dc.date.available","2018-11-07T10:10:18Z"],["dc.date.issued","2016"],["dc.description.abstract","Clear cell renal cell carcinoma (ccRCC) is the most malignant tumor in the adult kidney. Many factors are responsible for the development and progression of this tumor. Increased reactive oxygen species accumulation and altered redox status have been observed in cancer cells and this biochemical property of cancer cells can be exploited for therapeutic benefits. In earlier work we identified and characterize Protein DJ-1 (PARK7) as an oxidative stress squevenger in renal cells exposed to oxidative stress. To investigate whether the PARK7 or other oxidative stress proteins play a role in the renal cell carcinoma and its sensitivity or resistance to cytostatic drug treatment, differential proteomics analysis was performed with a cell model for clear cell renal carcinoma (Caki-2 and A498). Caki-2 cells were treated with cisplatin and differentially expressed proteins were investigated. The cisplatin treatment resulted in an increase in reactive oxygen species accumulation and ultimately apoptosis of Caki-2 and A498 cells. In parallel, the apoptotic effect was accompanied by a significant downregulation of antioxidant proteins especially PARK7. Knockdown of PARK7 using siRNA and overexpression using plasmid highlights the role of PARK7 as a key player in renal cell carcinoma response to cisplatin induced apoptosis. Over expression of PARK7 resulted in significant decrease in apoptosis, whereas knockdown of the protein was accompanied by an increase in apoptosis in Caki-2 and A498 cells treated with cisplatin. These results highlights for the first time the important role of PARK7 in cisplatin induced apoptosis in clear renal cell carcinoma cells. (C) 2016 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","DAAD [A/12/76098]"],["dc.identifier.doi","10.1016/j.ejphar.2016.04.014"],["dc.identifier.isi","000379653600011"],["dc.identifier.pmid","27112662"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39827"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1879-0712"],["dc.relation.issn","0014-2999"],["dc.title","The antioxidant protein PARK7 plays an important role in cell resistance to Cisplatin-induced apoptosis in case of clear cell renal cell carcinoma"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2674"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Nephrology Dialysis Transplantation"],["dc.bibliographiccitation.lastpage","2683"],["dc.bibliographiccitation.volume","26"],["dc.contributor.author","Pesic, Ivana"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Mueller, Georg Anton"],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Hoffmann, Moritz"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Koziolek, Michael"],["dc.contributor.author","Dihazi, Hassan"],["dc.date.accessioned","2018-11-07T08:53:45Z"],["dc.date.available","2018-11-07T08:53:45Z"],["dc.date.issued","2011"],["dc.description.abstract","Background. The effect of clearance of so-called middle- and high-molecular weight proteins on clinical outcome of patients treated by peritoneal dialysis is still a matter of debate. In our present study, we investigated the impact of short-time alteration of the glucose concentration and the osmolarity of the peritoneal dialysis solution (PDS) on protein removal. Methods. Peritoneal dialysis liquids (PDL) were collected from 19 well-characterized continuous ambulatory peritoneal dialysis (CAPD) patients treated with two types of PDS: Baxter (n = 10) and Fresenius (n = 9). The patients were treated with two different glucose concentration of each PDS in 4-h cycles. The depletion of the six interfering high-abundant proteins from the PDL samples was performed with the Multiple Affinity Removal LC Column-Human 6. The resulting protein fractions were analysed by 2D gel electrophoresis, differential in gel electrophoresis, mass spectrometry and 2D western blot. Results. Proteomics investigation of the PDL fractions after depletion allowed the identification of 198 polypeptides of 424 excised spots. These polypeptides equates to 48 non-redundant proteins. Comparative analyses of 2D gel electrophoresis protein pattern revealed a clear correlation between protein removal and PDS glucose concentration and osmolarity. An increase for 4 h in the PDS osmolarity (with 43-51 mosmol/L) resulted qualitatively in 18-23% more protein removal in PDL. Moreover, 2D western blot analyses of the protein glycation pattern showed that the short-time increase in PDS glucose concentration (45-50 mM) resulted in significant alteration of the advanced glycosylation end products (AGEs) pattern. Conclusions. The data presented in this study demonstrate a clear correlation between the short-time changes in glucose concentration and osmolarity of the PDS, and the augmentation of the protein removal and the appearance of AGEs during CAPD."],["dc.identifier.doi","10.1093/ndt/gfq793"],["dc.identifier.isi","000293336500041"],["dc.identifier.pmid","21285129"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22498"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0931-0509"],["dc.title","Short-time increase of glucose concentration in PDS results in extensive removal and high glycation level of vital proteins during continuous ambulatory peritoneal dialysis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","754"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics"],["dc.bibliographiccitation.lastpage","762"],["dc.bibliographiccitation.volume","1834"],["dc.contributor.author","Pesic, Ivana"],["dc.contributor.author","Mueller, Georg Anton"],["dc.contributor.author","Baumann, Cosima"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Koziolek, Michael Johann"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Bramlage, Carsten"],["dc.contributor.author","Asif, Abdul R."],["dc.contributor.author","Dihazi, Hassan"],["dc.date.accessioned","2018-11-07T09:26:27Z"],["dc.date.available","2018-11-07T09:26:27Z"],["dc.date.issued","2013"],["dc.description.abstract","The vast majority of patients with end-stage renal disease are treated with intermittent hemodialysis as a form of renal replacement therapy. To investigate the impact of hemodialysis membrane material on vital protein removal, dialysates from 26 well-characterized hemodialysis patients were collected 5 min after beginning, during 5 h of treatment, as well as 5 min before ending of the dialysis sessions. Dialysis sessions were performed using either modified cellulose (n = 12) (low-flux and high flux) or synthetic Polyflux (n=14) (low-flux and high-flux) dialyzer. Protein removal during hemodialysis was quantified and the dialysate proteome patterns were analyzed by 2-DE, MS and Western blot. There was a clear correlation between the type of membrane material and the amount of protein removed. Synthetic Polyflux membranes exhibit strong interaction with plasma proteins resulting in a significantly higher protein loss compared to modified cellulosic membrane. Moreover, the proteomics analysis showed that the removed proteins represented different molecular weight range and different functional groups: transport proteins, protease inhibitors, proteins with role in immune response and regulations, constructive proteins and as a part of HIA immune complex. The effect of this protein removal on hemodialysis treatment outcome should be investigated in further studies. (C) 2013 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.bbapap.2013.01.021"],["dc.identifier.isi","000317452300005"],["dc.identifier.pmid","23369790"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30301"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1570-9639"],["dc.title","Cellulose membranes are more effective in holding back vital proteins and exhibit less interaction with plasma proteins during hemodialysis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1842"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Molecular BioSystems"],["dc.bibliographiccitation.lastpage","1859"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Mueller, Georg Anton"],["dc.contributor.author","Asif, Abdul R."],["dc.contributor.author","Dihazi, Hassan"],["dc.date.accessioned","2018-11-07T10:20:20Z"],["dc.date.available","2018-11-07T10:20:20Z"],["dc.date.issued","2016"],["dc.description.abstract","In the pathogenesis of renal fibrosis, oxidative stress (OS) enhances the production of reactive oxygen species (ROS) leading to sustained cell growth, inflammation, excessive tissue remodelling and accumulation, which results in the development and acceleration of renal damage. In our previous work (Eltoweissy et al., 2011) we established protein DJ-1 (PARK7) as an important ROS scavenger and key player in renal cell response to OS. In the present study we investigated the impact of profibrogenic agonists on DJ-1 and shed light on the role of this protein in renal fibrosis. Treatment of renal fibroblasts and epithelial cells with the profibrogenic agonist ANG II or PDGF resulted in a significant up-regulation of DJ-1 expression parallel to an increase in the expression of fibrosis markers. Monitoring of DJ-1 expression in kidney extract and tissue sections from a renal fibrosis mouse model (Col4a3-deficient) revealed a disease grade dependent regulation of the protein. Overexpression of DJ-1 prompted cell resistance to OS in both fibroblasts and epithelial cells. Furthermore overexpression of DJ-1, involved in ROS scavenging, in which glutamic acid 18 (E18) is mutated to either to aspartic acid (D) or glutamine (Q) resulted in a significant increase in cell death under OS in the case of E18D mutation, whereas E18Q mutation did not impact significantly the cell response to OS, revealing the importance of the acidic group for the ROS scavenging activity of the DJ-1 protein more than the nature of the amino acid itself. Affinity precipitation of interaction partners of DJ-1 and its mutants revealed an important role of annexin A1 and A5 in the mechanism of action of DJ-1 in anti-oxidative stress response."],["dc.identifier.doi","10.1039/c5mb00887e"],["dc.identifier.isi","000377088800017"],["dc.identifier.pmid","27109140"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41867"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1742-2051"],["dc.relation.issn","1742-206X"],["dc.title","Protein DJ-1 and its anti-oxidative stress function play an important role in renal cell mediated response to profibrotic agents"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","304"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Proteomics"],["dc.bibliographiccitation.lastpage","318"],["dc.bibliographiccitation.volume","74"],["dc.contributor.author","Dihazi, Hassan"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Mueller, Claudia"],["dc.contributor.author","Lahrichi, Loubna"],["dc.contributor.author","Asif, Abdul R."],["dc.contributor.author","Bibi, Asima"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Vasko, Radovan"],["dc.contributor.author","Mueller, Georg Anton"],["dc.date.accessioned","2018-11-07T08:58:57Z"],["dc.date.available","2018-11-07T08:58:57Z"],["dc.date.issued","2011"],["dc.description.abstract","Renal fibroblasts are thought to play a major role in the development of renal fibrosis (RF). The mechanisms leading to this renal alteration remain poorly understood. We performed differential proteomic analyses with two established fibroblast cell lines with RF phenotype to identify new molecular pathways associated with RF. Differential 2-DE combined with mass spectrometry analysis revealed the alteration of more than 30 proteins in fibrotic kidney fibroblasts (TK188) compared to normal kidney fibroblast. (TK173). Among these proteins, markers of the endoplasmic reticulum (ER) stress- and the unfolded protein response (UPR) pathway (GRP78, GRP94, ERP57, ERP72, and CALR) and the oxidative stress pathway proteins (PRDX1, PRDX2, PRDX6, HSP70, HYOU1) were highly up-regulated in fibrotic cells. Activation of these stress pathways through long time exposition of TK173, to high NaCl or glucose concentrations resulted in TK188 like phenotype. Parallel to an increase in reactive oxygen species, the stressed cells showed significant alteration of fibrosis markers, ER-stress and oxidative stress proteins. Similar effects of osmotic stress could be also observed on renal proximal tubule cells. Our data suggest an important role of the ER-stress proteins in fibrosis and highlights the pro-fibrotic effect of osmotic stress through activation of oxidative stress and ER-stress pathways. (C) 2010 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.jprot.2010.11.007"],["dc.identifier.isi","000287061200004"],["dc.identifier.pmid","21118732"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23770"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1874-3919"],["dc.title","Proteomics characterization of cell model with renal fibrosis phenotype: Osmotic stress as fibrosis triggering factor"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1187"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","The International Journal of Biochemistry & Cell Biology"],["dc.bibliographiccitation.lastpage","1197"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Bibi, Asima"],["dc.contributor.author","Agarwal, Nitin Kumar"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Phuc Van Nguyen, Phuc Van Nguyen"],["dc.contributor.author","Mueller, Georg Anton"],["dc.contributor.author","Dihazi, Hassan"],["dc.date.accessioned","2018-11-07T08:53:37Z"],["dc.date.available","2018-11-07T08:53:37Z"],["dc.date.issued","2011"],["dc.description.abstract","The thick ascending limb of Henle's loop (TALH) is normally exposed to variable and often very high osmotic stress and involves different mechanisms to counteract this stress. ER resident calcium binding proteins especially calreticulin (CALR) play an important role in different stress balance mechanisms. To investigate the role of CALR in renal epithelial cells adaptation and survival under osmotic stress, two-dimensional fluorescence difference gel electrophoresis combined with mass spectrometry and functional proteomics were performed. CALR expression was significantly altered in TALH cells exposed to osmotic stress, whereas renal inner medullary collecting duct cells and interstitial cells exposed to hyperosmotic stress showed no significant changes in CALR expression. Moreover, a time dependent downregulation of CALR was accompanied with continuous change in the level of free intracellular calcium. Inhibition of the calcium release, through IP3R antagonist, prevented CALR expression alteration under hyperosmotic stress, whereas the cell viability was significantly impaired. Overexpression of wild type CALR in TALH cells resulted in significant decrease in cell viability under hyperosmotic stress. In contrast, the hyperosmotic stress did not have any effect on cells overexpressing the CALR mutant, lacking the calcium-binding domain. Silencing CALR with siRNA significantly improved the cell survival under osmotic stress conditions. Taken together, our data clearly highlight the crucial role of CALR and its calcium-binding role in TALH adaptation and survival under osmotic stress. (C) 2011 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.biocel.2011.04.012"],["dc.identifier.isi","000292660800014"],["dc.identifier.pmid","21554974"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22466"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","1357-2725"],["dc.title","Calreticulin is crucial for calcium homeostasis mediated adaptation and survival of thick ascending limb of Henle's loop cells under osmotic stress"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3649"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","Journal of Cell Science"],["dc.bibliographiccitation.lastpage","3663"],["dc.bibliographiccitation.volume","126"],["dc.contributor.author","Dihazi, Hassan"],["dc.contributor.author","Dihazi, Gry Helene"],["dc.contributor.author","Bibi, Asima"],["dc.contributor.author","Eltoweissy, Marwa"],["dc.contributor.author","Mueller, Claudia A."],["dc.contributor.author","Asif, Abdul R."],["dc.contributor.author","Rubel, Diana"],["dc.contributor.author","Vasko, Radovan"],["dc.contributor.author","Mueller, Georg Anton"],["dc.date.accessioned","2018-11-07T09:21:15Z"],["dc.date.available","2018-11-07T09:21:15Z"],["dc.date.issued","2013"],["dc.description.abstract","Renal fibrosis is characterized by excessive accumulation of extracellular matrix (ECM), which compromises organ function by replacing normal organ tissue. The molecular mechanisms leading to renal fibrosis are not fully understood. Here we demonstrated that TGF beta 1, AGT or PDGF stimulation of renal cells resulted in endoplasmic reticulum (ER) stress followed by activation of the protective unfolded protein response pathway and a high secretory level of protein disulfide isomerase ERP57 (also known as PDIA3). The TGF beta 1-induced impairment of ER function could be reversed by treatment with BMP7, suggesting a specific involvement in renal fibrosis. A clear correlation between the degree of fibrosis, ER stress and the level of ERP57 could be seen in fibrosis animal models and in biopsies of renal fibrosis patients. Protein interaction studies revealed that secreted ERP57 exhibits a strong interaction with ECM proteins. Knockdown of ERP57 or antibody-targeted inhibition of the secreted form significantly impaired the secretion and accumulation of ECM. Moreover, ERP57 was excreted in the early stages of chronic kidney disease, and its level in urine correlated with the degree of renal fibrosis, suggesting that the secretion of ERP57 represents one of the first signs of renal fibrosis onset and progression."],["dc.identifier.doi","10.1242/jcs.125088"],["dc.identifier.isi","000323204400015"],["dc.identifier.pmid","23781031"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29071"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Company Of Biologists Ltd"],["dc.relation.haserratum","/handle/2/77711"],["dc.relation.issn","0021-9533"],["dc.title","Secretion of ERP57 is important for extracellular matrix accumulation and progression of renal fibrosis, and is an early sign of disease onset"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]