Resorbable bioceramics are attractive for medical applications such as bone substitution. Biochemical analysis on cells cultured on these biomaterials is vital to predict the impact of the materials in vivo and RNA ex...Resorbable bioceramics are attractive for medical applications such as bone substitution. Biochemical analysis on cells cultured on these biomaterials is vital to predict the impact of the materials in vivo and RNA extraction is an essential step in gene expression study using RT-qPCR. In this study, we describe simple modifications to the TRIzol? RNA extraction protocol widely used in biology and these allow high-yield extraction of RNA from cells on resorbable calcium phosphates. Without the modifications, RNA is trapped in the co-precipitated calcium compounds, rendering TRIzol? extraction method infeasible. Among the modifications, the use of extra TRIzol? to dilute the lysate before the RNA precipitation step is critical for extraction of RNA from porous ?-tricalcium phosphate (?-TCP) discs. We also investigate the rationale behind the undesirable precipitation so as to provide clues about the modifications required for other resorbable materials with high application potential in bone tissue engineering.展开更多
以Trizol法、改进SDS法及RNA plant plus Reagent试剂盒法提取罗布麻的总RNA,并通过紫外分光光度法和凝胶电泳检测对其提取效果进行比较分析,以筛选出罗布麻总RNA最佳提取方法。结果表明:Trizol法无法有效获得罗布麻总RNA,有较为显著的...以Trizol法、改进SDS法及RNA plant plus Reagent试剂盒法提取罗布麻的总RNA,并通过紫外分光光度法和凝胶电泳检测对其提取效果进行比较分析,以筛选出罗布麻总RNA最佳提取方法。结果表明:Trizol法无法有效获得罗布麻总RNA,有较为显著的降解现象;改进SDS法提取的罗布麻RNA总量较少、浓度低,且试验重复性差;RNA plant plus Reagent试剂盒法提取的RNA质量好,纯度高,完整性强,可直接作为后续相关分子生物学试验材料。展开更多
文摘Resorbable bioceramics are attractive for medical applications such as bone substitution. Biochemical analysis on cells cultured on these biomaterials is vital to predict the impact of the materials in vivo and RNA extraction is an essential step in gene expression study using RT-qPCR. In this study, we describe simple modifications to the TRIzol? RNA extraction protocol widely used in biology and these allow high-yield extraction of RNA from cells on resorbable calcium phosphates. Without the modifications, RNA is trapped in the co-precipitated calcium compounds, rendering TRIzol? extraction method infeasible. Among the modifications, the use of extra TRIzol? to dilute the lysate before the RNA precipitation step is critical for extraction of RNA from porous ?-tricalcium phosphate (?-TCP) discs. We also investigate the rationale behind the undesirable precipitation so as to provide clues about the modifications required for other resorbable materials with high application potential in bone tissue engineering.
文摘以Trizol法、改进SDS法及RNA plant plus Reagent试剂盒法提取罗布麻的总RNA,并通过紫外分光光度法和凝胶电泳检测对其提取效果进行比较分析,以筛选出罗布麻总RNA最佳提取方法。结果表明:Trizol法无法有效获得罗布麻总RNA,有较为显著的降解现象;改进SDS法提取的罗布麻RNA总量较少、浓度低,且试验重复性差;RNA plant plus Reagent试剂盒法提取的RNA质量好,纯度高,完整性强,可直接作为后续相关分子生物学试验材料。
