Circulating exosomal mRNA profiling identifies novel signatures for the detection of prostate cancer

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Abstract

The landscape and characteristics of circulating exosomal messenger RNAs (emRNAs) are poorly understood, which hampered the accurate detection of circulating emRNAs. Through comparing RNA sequencing data of circulating exosomes with the corresponding data in tissues, we illustrated the different characteristics of emRNAs compared to tissue mRNAs. We then developed an improved strategy for emRNA detection based on the features of circulating emRNAs. Using the optimized detection strategy, we further validated prostate cancer (PCa) associated emRNAs discovered by emRNA-seq in a large cohort of patients and identified emRNA signatures for PCa screening and diagnosis using logistic regression analysis. The receiver operating characteristic curve (ROC) analysis showed that the circulating emRNA-based screening signature yielded an area under the ROC curve (AUC) of 0.948 in distinguishing PCa patients from healthy controls. The circulating emRNA-based diagnostic signature also showed a great performance in predicting prostate biopsy results (AUC: 0.851). In conclusion, our study developed an optimized emRNA detection strategy and identified novel emRNA signatures for the detection of PCa.

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Ji, J., Chen, R., Zhao, L., Xu, Y., Cao, Z., Xu, H., … Wang, F. (2021, December 1). Circulating exosomal mRNA profiling identifies novel signatures for the detection of prostate cancer. Molecular Cancer. BioMed Central Ltd. https://doi.org/10.1186/s12943-021-01349-z

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