Abstract
Extracellular vesicles (EVs) are biological carriers, and EV-associated miRNAs (EV-miRNAs) are considered as a novel biomarker in multiple diseases. Currently, the column-based purification method is used to purify miRNAs from EVs. However, this method of purification is complex, time-consuming, and expensive. Therefore, a simple and cost-effective single-step quantitative reverse transcription-polymerase chain reaction (RT-qPCR) method is required to detect the expression of EV-miRNAs. This chapter describes a protocol for directly analyzing the EV-miRNAs expression from mouse bronchoalveolar lavage fluid (BALF) and serum without going for an RNA isolation and purification step from EVs. It is an efficient method in several terms such as cost-wise, time, low expertise, and accuracy in results. This method may be helpful in diagnostic blood tests used in medical centers or research laboratories.
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