3 years ago

A comprehensive, cell specific microRNA catalogue of human peripheral blood.

Simonas Juzenas, Zhipei Gracie Du, Martin Hofmann-Apitius, Limas Kupcinskas, Philip Rosenstiel, Maren Paulsen, Geetha Venkatesh, Andreas Keller, Marc P. Hoeppner, Matthias Hübenthal, Georg Hemmrich-Stanisak, Andre Franke, Philipp Senger
With this study, we provide a comprehensive reference dataset of detailed miRNA expression profiles from seven types of human peripheral blood cells (NK cells, B lymphocytes, cytotoxic T lymphocytes, T helper cells, monocytes, neutrophils and erythrocytes), serum, exosomes and whole blood. The peripheral blood cells from buffy coats were typed and sorted using FACS/MACS. The overall dataset was generated from 450 small RNA libraries using high-throughput sequencing. By employing a comprehensive bioinformatics and statistical analysis, we show that 3' trimming modifications as well as composition of 3' added non-templated nucleotides are distributed in a lineage-specific manner-the closer the hematopoietic progenitors are, the higher their similarities in sequence variation of the 3' end. Furthermore, we define the blood cell-specific miRNA and isomiR expression patterns and identify novel cell type specific miRNA candidates. The study provides the most comprehensive contribution to date towards a complete miRNA catalogue of human peripheral blood, which can be used as a reference for future studies. The dataset has been deposited in GEO and also can be explored interactively following this link: http://134.245.63.235/ikmb-tools/bloodmiRs.

Publisher URL: http://doi.org/10.1093/nar/gkx706

DOI: 10.1093/nar/gkx706

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