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Inflammation and Extracellular Matrix Genes Differentially Expressed Following Overlapping Zotarolimus- and Sirolimus-Eluting Stent Implantation

ABSTRACT: An unanticipated complication of the use of bare metal stents in percutaneous transluminal coronary angioplasty is in-stent restenosis resulting in >50% late lumen diameter loss in treated patients. In an effort to reduce in-stent restenosis, drug eluting stents containing the immunosuppressant sirolimus or zotarolimus have recently been developed. We report here the molecular response of arterial tissue to the implanting of these drug-eluting stents.

ORGANISM(S): Sus scrofa

PROVIDER: GSE28781 | GEO | 2011/04/22

SECONDARY ACCESSION(S): PRJNA138681

REPOSITORIES: GEO

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Inflammation and Extracellular Matrix Genes Differentially Expressed Following Overlapping Zotarolimus- and Sirolimus-Eluting Stent Implantation

Project description:An unanticipated complication of the use of bare metal stents in percutaneous transluminal coronary angioplasty is in-stent restenosis resulting in >50% late lumen diameter loss in treated patients. In an effort to reduce in-stent restenosis, drug eluting stents containing the immunosuppressant sirolimus or zotarolimus have recently been developed. We report here the molecular response of arterial tissue to the implanting of these drug-eluting stents. Gene expression profiling was performed on 4 artery segments surrounding bare metal stents (BMS), 4 artery segments surrounding sirolimus-eluting stents (SES), and 4 artery segments surrounding zotarolimus-eluting stents (ZES) implanted into porcine animal models for 28 days.

2011-04-22 | E-GEOD-28781 | biostudies-arrayexpress

Real-time quantitative PCR analysis of rat aorta samples after stent deployment

Project description:Bare Metal Stents (BMS), Drug Eluting Stent (DES) and Exosomes Eluting Stent (EES) were placed in rat abdominal aorta for one week. Then total RNA of aortas was extracted. We used ScienCell's GeneQuery Rat Macrophage Polarization Markers qPCR Array Kit to quantitate gene expression of macrophage relevant genes.

2021-04-30 | GSE155793 | GEO

Gene expression response to implanted drug (paclitaxel)-eluting or bare metal stents in denuded human LIMA arteries

Project description:[original title] Gene expression response to the implantation of drug (paclitaxel)-eluting or bare metal stents in denuded human LIMA arteries. Different clinical outcomes have been observed for paclitaxel-eluting and bare metal cardiovascular stents. The aim of this project was to identify genes that might be associated with the observed clinical outcomes. Human left internal mammary artery (LIMA) was divided into three segments and and two of the segments were fitted with either a paclitaxel-eluting stent or a bare metal stent. The experiment includes three groups: control, paclitaxel-eluting stent, and bare metal stent, respectively. Each group includes four biological replicates (patients 1, 2, 4 and 5).

2010-03-07 | E-GEOD-19136 | biostudies-arrayexpress

Gene expression response to implanted drug (paclitaxel)-eluting or bare metal stents in denuded human LIMA arteries

2010-03-01 | GSE19136 | GEO

Whole blood gene expression profiling for coronary in-stent restenosis: A Indian pilot case study.

Project description:Percutaneous coronary intervention (PCI) with stent placement is a standard treatment for coronary artery disease (CAD). Despite all medical advances, restenosis remains a challenging clinical problem. However, the molecular and biochemical pathways of restenotic process are not fully understood yet. Furthermore, as restenosis is assumed to be a multigenetic process and genetic predisposition is considered an important risk factor, analysis of the genome-wide gene expression is recommended for better insight of the phenomenon. We used microarray technology to monitor thousands of genes expression simultaneously. The whole genome expression will be analyzed with this technique to identify cluster of up-regulated and down-regulated genes which may be involved in this complex pathological condition. Coronary restenosis after percutaneous coronary intervention remains a challenging problem, despite all medical advances. Molecular and biochemical pathways of restenotic process are not fully understood yet. Furthermore, as restenosis is assumed to be a multigenetic process. We used microarray technology to monitor thousands of genes expression simultaneously in restenosis postive group with reference restenosis negative group, which will unravel potentially modifiable pathways, possible targets and biomarkers for coronary restenosis.

2014-04-30 | E-GEOD-46560 | biostudies-arrayexpress

ECM characterization in stented porcine coronary arteries LC-MS/MS

Project description:Bare-metal (BMS) and drug-eluting stents (DES) were implanted in pig coronary arteries with an overstretch during coronary angioplasty under optical coherence tomography guidance. Arteries subjected to plain old balloon angioplasty (POBA) alone served as controls. Stented/balloon dilated segments were harvested 1, 3, 7, 14 and 28 days post-intervention for proteomics analysis. At day 28 all stented arteries showed a neointima formation covering the stent struts. The evolved neointima was separated from the media and analysed in a separate proteomics analysis. In total, 31 samples were analysed for the media by LC-MS/MS (n=3 BMS/DES at each time-point 1, 3, 7 and 28 days; n=4 POBA early [day1-day3] and n=3 POBA late [day 14 - day28]). For the neointima a total of 14 samples were analysed (n=7 BMS, n=7 DES at 28 days) including the neointima of arteries of a second cohort with 4 samples each for BMS and DES day 28. The neointima samples were run in duplicates.

2017-11-24 | PXD005726 | Pride

Microarray expression profile analysis of long non-coding RNAs and mRNAs in A Rat Carotid Artery Balloon Injury Model

Project description:Restenosis after angioplasty or stent is a major clinical problem. While long noncoding RNAs (lncRNAs) are implicated in a variety of diseases, their role in restenosis is not well understood. This study aims to investigate how dysregulated lncRNAs and mRNAs contribute to restenosis.

2019-12-31 | GSE121839 | GEO

Whole blood gene expression profiling for coronary in-stent restenosis: A Indian pilot case study.

2014-04-30 | GSE46560 | GEO

An ex vivo physiologic and hyperplastic vessel culture model to study intra-arterial stent therapies

Project description:Conventional in vitro methods for biological evaluation of intra-arterial devices such as stents fail to accurately predict cytotoxicity and remodeling events. An ex vivo flow-tunable vascular bioreactor system (VesselBRx), comprising intra- and extra-luminal monitoring capabilities, addresses these limitations. VesselBRx mimics the in vivo physiological, hyperplastic, and cytocompatibility events of absorbable magnesium (Mg)-based stents in ex vivo stent-treated porcine and human coronary arteries, with in-situ and real-time monitoring of local stent degradation effects. Unlike conventional, static cell culture, the VesselBRx perfusion system eliminates unphysiologically high intracellular Mg2+ concentrations and localized O2 consumption resulting from stent degradation. Whereas static stented arteries exhibited only 20.1% cell viability and upregulated apoptosis, necrosis, metallic ion, and hypoxia-related gene signatures, stented arteries in VesselBRx showed almost identical cell viability to in vivo rabbit models (~94.0%). Hyperplastic intimal remodeling developed in unstented arteries subjected to low shear stress, but was inhibited by Mg-based stents in VesselBRx, similarly to in vivo. VesselBRx represents a critical advance from the current static culture standard of testing absorbable vascular implants.

2021-05-22 | GSE174858 | GEO

Umbilical Cord Mesenchymal Stem Cells Derived Exosomal microRNA-148a-3p Inhibits Neointimal Hyperplasia by Targeting Serpine1

Project description:Restenosis is an inescapable problem when patients underwent percutaneous transluminal angioplasty because of intimal hyperplasia. Human umbilical cord mesenchymal stem cells derived exosomes (HucMSC-Exo) have been proved to promote reendothelialization to restrain the process of intimal hyperplasia. However, aberrant vascular smooth muscle cell (VSMC) proliferation, migration and dedifferentiation play more important roles in intimal hyperplasia, the effects and mechanisms of HucMSC-Exo upon VSMC are elusive

2022-12-30 | GSE188896 | GEO

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