70%的乙醇比GTC-TCEP更有效地保护了培养中的真菌细菌RNA
Lena Krausser1,2, Magalie Van Dyck-Lippens3, Ramata Balde3
1Department Biomedical Sciences, Institute of Tropical Medicine (ITM), Antwerp, Belgium. lkrausser@ext.itg.be.
Scientific reports
|April 10, 2025
概括
70%的乙醇有效地保护了Mycobacterium结核菌培养中的RNA,为基于RNA的测定和RNA测序研究提供了GTC-TCEP的稳定和可访问的替代方案.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 传染病研究 传染病研究
背景情况:
- 基于RNA的测定对于评估缓慢生长的菌根体中的分子活力至关重要.
- RNA测序 (RNAseq) 是传染病研究中的一个强大的工具.
- 有效的RNA保存对于可靠的RNA分析至关重要.
研究的目的:
- 为了比较70%乙醇与基于瓜尼尼三酸盐 (GTC) 的缓冲剂在保护Mycobacterium结核病培养中的RNA方面的疗效.
- 在各种压力条件下评估RNA产量和完整性,包括热冲击,冷解周期和长期储存.
主要方法:
- 培养的Mycobacterium结核病H37Ra被用70%的乙醇或GTC-TCEP治疗.
- 样品经历了热冲击 (45°C),多次冷解周期和长期储存 (-80°C,-20°C,4°C,30°C长达12个月).
- 在处理和储存后评估了RNA数量和完整性.
主要成果:
- 与GTC-TCEP相比,70%的乙醇处理导致较高的RNA数量.
- 在70%的乙醇存储在-20°C下12个月的时间内,RNA完整性得到维持.
- 在使用70%乙醇时,多达三次结解周期对RNA产量和完整性没有影响.
- 这两种缓冲器都防止了热应力诱导的转录基因变化.
结论:
- 70%乙醇是GTC-TCEP推的,具有成本效益的替代品,用于在真菌菌培养物中保存RNA.
- 对于冷解,短期热和-20°C长期储存的有希望的结果,需要对临床样本应用进行进一步的验证.
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