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Circulating miR-499a-5p is a potential biomarker of MYH7-associated hypertrophic cardiomyopathy

ABSTRACT: Circulating miR-499a-5p is a potential biomarker of MYH7-associated hypertrophic cardiomyopathy

PROVIDER: PRJNA800655 | ENA |

REPOSITORIES: ENA

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Circulating miR-499a-5p is a potential biomarker of MYH7-associated hypertrophic cardiomyopathy

Project description:Hypertrophic cardiomyopathy (HCM) is the most common inherited myocardial disease with significant genetic and phenotypic heterogeneity. To search for novel biomarkers, which could increase the accuracy of HCM diagnosis and possibly improve understanding of its phenotype formation, we analyzed the levels of circulating microRNAs (miRNAs) − stable non-coding regulatory RNAs. Performed high throughput sequencing of miRNAs in plasma of HCM patients and controls pinpointed miR-499a-5p as one of 35 miRNAs dysregulated in HCM.

2022-01-29 | GSE195436 | GEO

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A novel miRNA screen identifies miRNA-4454 as a candidate biomarker for ventricular fibrosis in patients with hypertrophic cardiomyopathy

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Human Cardiac Proteome of Hypertrophic Cardiomyopathy

Project description:This study utilized TMT to characterize the cardiac proteomic differences between patients with hypertrophic cardiomyopathy and controls.

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Project description:This study used TMT-pro method to look for phosphoproteomic differences in heart tissue of patients with hypertrophic cardiomyopathy and controls

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MicroRNA Profiling of Surgical Myectomy Tissue from Patients with Hypertrophic Cardiomyopathy

Project description:Using a high-throughput gene expression profiling technology, we have illuminated novel potential microRNA (miRNA) components of the molecular disease process underlying human hypertrophic cardiomyopathy (HCM). It is hoped that this will fuel future research endeavors that will eventually uncover the role miRNAs may play in the phenotypic heterogeneity of the disease, and thus, provide potential tools for identifying patients with benign versus malignant forms of the disease. Case (n = 107)-Control (n=20) study comparing the microRNA transcriptome of cardiac tissues from patients with hypertrophic cardiomyopathy to the microRNA transcriptome of control donor cardiac tissues.

2012-09-01 | E-GEOD-36946 | biostudies-arrayexpress

Transcriptome Profiling of Surgical Myectomy Tissue from Patients with Hypertrophic Cardiomyopathy

Project description:Using a high-throughput gene expression profiling technology, we have been able to develop new hypotheses regarding the molecular pathogenic mechanisms of human hypertrophic cardiomyopathy (HCM). It is hoped that these hypotheses, among others generated by this data, will fuel future research endeavors that will uncover novel biomarkers, prognostic indicators, and therapeutic targets to improve our ability to diagnose, counsel, and treat patients with this highly heterogeneous and potentially life-threatening condition. Case-control study comparing the messenger RNA transcriptome of cardiac tissues from patients with hypertrophic cardiomyopathy to the transcriptome of control donor cardiac tissues.

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Circulating cardiac microRNA-FOXO3 axis safeguards against dilated cardiomyopathy

Project description:Background - Cardiac microRNAs (miRNAs) could be released into circulation thus becoming circulating cardiac miRNAs, which are increasingly recognized as noninvasive and readily accessible biomarker for multiple heart diseases. A global loss of cardiac miRNAs due to dicer or dgcr8 depletion has been reported to lead to dilated cardiomyopathy (DCM). However, DCM-associated circulating miRNAs (DACMs) and their roles in regulating DCM progression remain largely unexplored. Methods and Results - Through miRNA sequencing of human plasma procured from DCM patients and healthy control people, DCM was characterized with a unique expression pattern for circulating miRNAs. Among them, miR-26a-5p, miR-30c-5p, miR-126-5p, and miR-126-3p were all identified with dramatic reductions in DCM mouse myocardium as in the plasma of DCM patients. FOXO3, highlighted as a predicted common target gene, was experimentally demonstrated to be repressed within cardiomyocytes by these miRNAs except miR-26a-5p. Mechanistically, miRNA combination (miR-30c-5p, miR-126-5p, and miR-126-3p) significantly attenuated FOXO3-induced apoptosis and autophagy observed in cardiomyocytes as well as in DCM murine heart. Cardiac-specific knockout of FOXO3 conspicuously mitigated myocardial apoptosis and autophagy in DCM development. Moreover, stymieing the interaction between these miRNAs and FOXO3 mRNA extremely crippled the cardioprotection of these miRNAs against DCM progression. Cardiac miRNA-FOXO3 axis plays a pivotal role in safeguarding against myocardial apoptosis and autophagy, thereby maintaining cardiac homeostasis and potently preventing DCM development. These findings may provide serological clues for the noninvasive diagnosis of DCM in the future, and unambiguously shed new light on DCM pathogenesis and associated therapeutic targets

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Project description:The HipSci project brings together diverse constituents in genomics, proteomics, cell biology and clinical genetics to create a UK national iPS cell resource and use it to carry out cellular genetic studies. In this sub-study we perform RNAseq on iPS lines from Hypertrophic Cardiomyopathy patients.

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