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homeRNA: A Self-Sampling Kit for the Collection of Peripheral Blood and Stabilization of RNA
Analytical Chemistry ( IF 6.7 ) Pub Date : 2021-09-21 , DOI: 10.1021/acs.analchem.1c02008
Amanda J Haack 1, 2 , Fang Yun Lim 1 , Dakota S Kennedy 1 , John H Day 1 , Karen N Adams 3 , Jing J Lee 1 , Erwin Berthier 1 , Ashleigh B Theberge 1, 4
Affiliation  

Gene expression analysis (e.g., targeted gene panels and transcriptomics) from whole blood can elucidate mechanisms of the immune function and aid in the discovery of biomarkers. Conventional venipuncture offers only a small snapshot of our broad immune landscape as immune responses may occur outside of the time and location parameters available for conventional venipuncture. A self-operated method that enables flexible sampling of liquid whole blood coupled with immediate stabilization of cellular RNA is instrumental in facilitating capture and preservation of acute or transient immune fluxes. To this end, we developed homeRNA, a kit for self-collection of peripheral blood (∼0.5 mL) and immediate stabilization of cellular RNA, using the Tasso-SST blood collection device with a specially designed stabilizer tube containing RNAlater. To assess the feasibility of homeRNA for self-collection and stabilization of whole blood RNA, we conducted a pilot study (n = 47 participants) in which we sent homeRNA to participants aged 21–69, located across 10 US states (94% successful blood collections, n = 61/65). Among participants who successfully collected blood, 93% reported no or minimal pain/discomfort using the kit (n = 39/42), and 79% reported very easy/somewhat easy stabilization protocol (n = 33/42). Total RNA yield from the stabilized samples ranged between 0.20 and 5.99 μg (mean = 1.51 μg), and all but one RNA integrity number values were above 7.0 (mean = 8.1), indicating limited RNA degradation. The results from this study demonstrate the self-collection and RNA stabilization of whole blood with homeRNA by participants themselves in their own home.

中文翻译:

homeRNA:用于采集外周血和稳定 RNA 的自采样试剂盒

来自全血的基因表达分析(例如,靶向基因组和转录组学)可以阐明免疫功能的机制并有助于发现生物标志物。传统静脉穿刺仅提供了我们广泛免疫景观的一小部分快照,因为免疫反应可能发生在传统静脉穿刺可用的时间和位置参数之外。一种能够灵活取样液体全血并立即稳定细胞 RNA 的自操作方法有助于促进急性或瞬时免疫通量的捕获和保存。为此,我们开发了RNA,一种用于自行采集外周血(~0.5 mL)并立即稳定细胞 RNA 的试剂盒,使用 Tasso-SST 血液采集装置和专门设计的含有 RNA 的稳定。为了评估家庭RNA 用于自我收集和稳定全血 RNA 的可行性,我们进行了一项初步研究(n = 47 名参与者),我们将家庭RNA 发送给美国 10 个州的 21-69 岁参与者(94%成功的血液采集,n = 61/65)。在成功采集血液的参与者中,93% 的人报告说使用该套件没有或仅有轻微的疼痛/不适(n = 39/42),79% 的人报告说非常容易/有些容易的稳定方案(n= 33/42)。稳定样品的总 RNA 产量在 0.20 和 5.99 μg 之间(平均值 = 1.51 μg),除一个 RNA 完整性数值外,所有值均高于 7.0(平均值 = 8.1),表明 RNA 降解有限。这项研究的结果表明,参与者自己在家中使用家庭RNA 进行全血的自我收集和 RNA 稳定化。
更新日期:2021-10-06
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