Transcriptomics

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MiRNA Expression Profiles in Isolated Ventricular Cardiomyocytes: Insights into Doxorubicin-Induced Cardiotoxicity


ABSTRACT: Doxorubicin (DOX) is a first-line chemotherapeutic agent widely used in the treatment of various cancers, but its clinical efficacy is limited by its early and late cardiotoxic effects. Prior to the visible morphological manifestation of lesions in cardiomyocytes after exposure to DOX, they can detect damage and initiate a complex cascade of responses, including the modulation of gene expression, including the regulation of microRNAs (miRNAs).In this study, we used small RNA sequencing to evaluate miRNA expression levels in cardiomyocytes exposed to DOX at a concentration of 10 μM for periods of 1 and 22 hours, compared to unexposed cells. By analyzing the normalized data and using DESeq2, we identified significant changes in the expression of certain miRNAs in DOX-treated cells. These miRNAs emerge as promising biomarker candidates that, if further investigated, could provide a valuable early detection tool for DOX sensitivity and guide the timely administration of cardioprotective agents.

ORGANISM(S): Cavia porcellus

PROVIDER: GSE263950 | GEO | 2024/04/15

REPOSITORIES: GEO

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