组织保护剂对病毒核酸与豚鼠皮肤组织样本RNA的保存效果探究

Preservation Effect of Tissue Protectant on Viral Nucleic Acid and RNA of Guinea Pig Skin Tissue Samples

病毒核酸和生物组织样本RNA容易受到外部环境的影响,极易发生降解,造成实验结果产生严重偏差。以病毒核酸与豚鼠皮肤组织样本RNA为研究对象,探究组织保护剂保存它们在不同温度放置不同时间后,对病毒载量以及豚鼠皮肤组织样本中RNA的保护效果。结果发现,在4℃保存30 d,25℃保存7 d或37℃保存24 h后,与初始病毒核酸量相比较,组织保护剂中保存的病毒载量未发生明显变化(P>0.05)。在4℃保存30 d,25℃保存7 d或37℃保存24 h后,与液氮储存组相比较,组织保护剂组与市售RNA later组均可以保持豚鼠皮肤组织中样本RNA的提取量和纯度,差异无统计学意义(P>0.05)。结果表明,组织保护剂可作为科研或临床组织样本的储存保存液,在4℃、25℃以及37℃条件下放置一定时间,不影响病毒核酸的病毒载量以及豚鼠皮肤组织样本RNA的提取量和纯度,使样本保存更简便高效。

Viral nucleic acid and RNA of biological tissue samples are easy to be affected by external environment and easily degrade,resulting in serious deviations in experimental results.Taking viral nucleic acid and guinea pig skin tissue sample RNA as research objects,the protective effect of tissue protectant on viral load and RNA in guinea pig skin tissue sample after preservation of them at different temperatures and different times was explored.The results showed that after storage at 4℃for 30 days(d),25℃for 7 d or 37℃for 24 hours(h),the viral load stored in tissue protectants did not change significantly compared with the initial viral nucleic acid dose(P>0.05).After storage at 4℃for 30 d,25℃for 7 d or 37℃for 24 h,compared with liquid nitrogen storage group,both tissue protectant group and commercially available RNA later group could maintain the extraction amount and purity of sample RNA in guinea pig skin tissue,with no statistical significance(P>0.05).The results showed that the tissue protectant could be used as a storage solution for scientific research or clinical tissue samples.It was placed at 4℃,25℃and 37℃for a certain time,without affecting the viral load of viral nucleic acid and the amount and purity of RNA extraction from guinea pig skin tis⁃sue samples,which made the sample preservation more convenient and efficient.