Stanford Genome Technology Center, Department of Biochemistry, Stanford University School of Medicine, Palo Alto, CA USA.
BMC Genomics. 2010 Dec 17;11:712. doi: 10.1186/1471-2164-11-712.
A sensitive, high-throughput method for monitoring pre-mRNA splicing on a genomic scale is needed to understand the spectrum of alternatively spliced mRNA in human cells.
We adapted Molecular Inversion Probes (MIPs), a padlock-probe based technology, for the multiplexed capture and quantitation of individual splice events in human tissues. Individual MIP capture probes can be quantified using either DNA microarrays or high-throughput sequencing, which permits independent assessment of each spliced junction. Using our methodology we successfully identified 100% of our positive controls and showed that there is a strong correlation between the data from our alternative splicing MIP (asMIP) assay and quantitative PCR.
The asMIP assay provides a sensitive, accurate and multiplexed means for measuring pre-mRNA splicing. Fully optimized, we estimate that the assay could accommodate a throughput of greater than 20,000 splice junctions in a single reaction. This would represent a significant improvement over existing technologies.
需要一种灵敏、高通量的方法来监测基因组范围内的前体 mRNA 剪接,以了解人类细胞中可变剪接 mRNA 的范围。
我们采用分子反转探针(MIPs),一种基于发夹探针的技术,用于在人类组织中对单个剪接事件进行多路复用捕获和定量。可以使用 DNA 微阵列或高通量测序来定量单个 MIP 捕获探针,这允许对每个剪接连接进行独立评估。使用我们的方法,我们成功地鉴定了 100%的阳性对照,并表明我们的可变剪接 MIP(asMIP)检测与定量 PCR 之间具有很强的相关性。
asMIP 检测法提供了一种灵敏、准确和多路复用的方法来测量前体 mRNA 剪接。完全优化后,我们估计该检测法在单个反应中可容纳超过 20000 个剪接连接。这将代表现有技术的重大改进。