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Non-Exosomal and Exosomal Circulatory MicroRNAs: Which Are More Valid as Biomarkers?


ABSTRACT: MicroRNAs (miRNAs) are a group of small non-coding RNAs with approximately 19-25 nucleotides that are involved in regulating a range of developmental and physiological processes. Non-exosomal circulating and exosomal miRNAs have also been proposed to be useful in diagnostics as biomarkers for diseases and different types of cancer. In this review, the quantity of miRNAs and of reliable experimental data analyses of miRNAs that come from exosomal and non-exosomal sources are discussed from the perspective of their use as biomarkers for cancer and other diseases, including viral infections, nervous system disorders, cardiovascular disorders, and diabetes. We summarize other research findings regarding the use of miRNA from these two sources as biomarkers in diagnostics and clinical use. The challenges in using miRNA from these two sources in cancer and disease diagnostics are evaluated and discussed. Validation of specific miRNA signatures as biomarkers is a critical milestone in diagnostics.

SUBMITTER: Nik Mohamed Kamal NNSB 

PROVIDER: S-EPMC6984169 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Non-Exosomal and Exosomal Circulatory MicroRNAs: Which Are More Valid as Biomarkers?

Nik Mohamed Kamal Nik Nur Syazana Binti NNSB   Shahidan Wan Nazatul Shima WNS  

Frontiers in pharmacology 20200120


MicroRNAs (miRNAs) are a group of small non-coding RNAs with approximately 19-25 nucleotides that are involved in regulating a range of developmental and physiological processes. Non-exosomal circulating and exosomal miRNAs have also been proposed to be useful in diagnostics as biomarkers for diseases and different types of cancer. In this review, the quantity of miRNAs and of reliable experimental data analyses of miRNAs that come from exosomal and non-exosomal sources are discussed from the pe  ...[more]

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