Abstract 5294: The difference of serum RNA profile: RNA extraction and detection method.

Serum miRNA profiles are widely reported by many .research groups, but they do not always coincide well. The reason of this difference is suggested to be, at least in some cases, due to a difference in the RNA extraction or detection method. In this report, we compare the miRNA expression profiles of RNAs extracted from (1) extracellular vesicles precipitated by ultra-centrifuging (2) precipitation of ExoQuick (3) whole serum by QIAGEN miRNeasy (4) whole serum by Toray 3D-Gene RNA extraction reagent from liquid sample kit. In addition to this, the comparison of data obtained by different detection tools will be also shown. In these days, the whole miRNA expression profiling can be done by multiple qRT-PCR, microarrays, and Next Generation Sequencing. However, the feature of each method will reflect to the obtained data and it is no surprise that data obtained by different tools do not match perfectly. We will compare the serum miRNA expression profiles detected by (1) “TaqMan” Array MicroRNA Card (2) QIAGEN miScript miRNA PCR Array (3) “3D-Gene” Human miRNA oligo chip, and discuss the base of method for serum miRNA profiling. Citation Format: Satoko Takizawa, Hideo Akiyama, Satoshi Kondo, Nobuyoshi Kosaka, Takahiro Ochiya. The difference of serum RNA profile: RNA extraction and detection method. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 5294. doi:10.1158/1538-7445.AM2013-5294