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Changes in miRNA Pattern Expression Associated With COVID-19 Severity.
Paola B Zárate-Segura1, Macario Martínez-Castillo2, Aarón Paris Garduño-Gutiérrez3
1Laboratorio de Medicina Traslacional, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, Mexico; pzarates@ipn.mx.
In Vivo (Athens, Greece)
|December 31, 2024
Summary
Specific microRNAs (miRNAs) are over-expressed in severe COVID-19 patients. These miRNAs, including miR-490-3p, may serve as potential biomarkers for predicting the clinical course of coronavirus disease 2019.
Area of Science:
- Molecular Biology
- Virology
- Genetics
Background:
- Coronavirus disease 2019 (COVID-19) presents diverse clinical symptoms.
- Host microRNAs (miRNAs) can influence COVID-19 progression and complications.
- Understanding host factors like miRNA expression is crucial for managing severe SARS-CoV-2 infection.
Purpose of the Study:
- To investigate the expression patterns of endogenous miRNAs in severe COVID-19 patients.
- To compare miRNA expression between 80 severe COVID-19 cases and healthy controls.
- To identify specific miRNAs associated with severe SARS-CoV-2 infection.
Main Methods:
- miRNA expression screening using TaqMan Low-Density Array.
- Validation of specific miRNA expression (miR-490-3p, miR-195-5p, miR-454-3p, miR-431-5p) via RT-qPCR.
- In silico analysis for target identification and pathway prediction.
Main Results:
- Four miRNAs (miR-490-3p, miR-195-5p, miR-454-3p, miR-431-5p) were significantly over-expressed in severe COVID-19 patients compared to controls.
- miR-490-3p showed over-expression in both male and female COVID-19 patients.
- These findings highlight specific miRNA dysregulation in severe SARS-CoV-2 infection.
Conclusions:
- Specific miRNAs demonstrate altered expression in severe COVID-19.
- These over-expressed miRNAs may function as potential biomarkers for predicting COVID-19 clinical outcomes.
- Further research into miRNA roles could inform therapeutic strategies for severe coronavirus disease 2019.
