Human Blood RNA Stabilization in Samples Collected and Transported for a Large Biobank
News Oct 05, 2012
The Norwegian Mother and Child Cohort Study (MoBa) is a nation-wide population-based pregnancy cohort initiated in 1999, comprising more than 108.000 pregnancies recruited between 1999 and 2008. In this study we evaluated the feasibility of integrating RNA analyses into existing MoBa protocols. We compared two different blood RNA collection tube systems -- the PAXgeneTM Blood RNA system and the TempusTM Blood RNA system - and assessed the effects of suboptimal blood volumes in collection tubes and of transportation of blood samples by standard mail. Endpoints to characterize the samples were RNA quality and yield, and the RNA transcript stability of selected genes.
High-quality RNA could be extracted from blood samples stabilized with both PAXgene and Tempus tubes. The RNA yields obtained from the blood samples collected in Tempus tubes were consistently higher than from PAXgene tubes. Higher RNA yields were obtained from cord blood (3 -- 4 times) compared to adult blood with both types of tubes. Transportation of samples by standard mail had moderate effects on RNA quality and RNA transcript stability; the overall RNA quality of the transported samples was high. Some unexplained changes in gene expression were noted, which seemed to correlate with suboptimal blood volumes collected in the tubes. Temperature variations during transportation may also be of some importance.
We show that the 50,000 samples collected in the MoBa biobank provide RNA of high quality and in sufficient amounts to allow gene expression analyses for studying the association of disease with altered patterns of gene expression.
The article is published online in BMC Research Notes and is free to access.
New Biomarkers Predict Outcome of Cancer ImmunotherapyNews
Researchers at the University of Zurich have identified biomarkers in the blood that make it possible to predict whether cancer patients will respond positively to immunotherapy. Patients for whom therapy does not work can thus be treated using different methods at an earlier stage.READ MORE
Cellular Judge Rules on Fate of mRNAs under Sugar StressNews
A newly discovered protein, Puf5P, has been shown to arbitrate on which mRNAs are stored and which are destroyed.READ MORE
Peli BioThermal Hires Dominic Hyde as New VP of Crēdo™ on DemandNews
Radical expansion of global rental program includes adding staff, locations and doubling their container inventory.READ MORE
Comments | 0 ADD COMMENT
World Advanced Therapies & Regenerative Medicine Congress
May 16 - May 18, 2018