Genotyping and other DNA analyses using PCR or next-generation sequencing (NGS) require a suitable amount of high-quality genomic DNA as starting material. The most common bottleneck to obtaining high-quality DNA is tissue lysis. Fibrous or other hard-to-lyse tissues require lengthy and tedious protocols that often result in low yields of low-quality DNA. The QIAamp Fast DNA Tissue Kit, based on proven QIAGEN technologies, overcomes this bottleneck by providing innovative disruption tubes that significantly improve yield and shorten the overall time to result. The procedure can be fully automated on the QIAcube Connect.

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The QIAamp Fast DNA Tissue Kit uses a novel combination of mechanical, chemical and enzymatic lysis. Each kit is supplied with disruption tubes that contain a special stainless steel bead with a unique shape that aids tissue disruption more thoroughly than other methods. Firstly, the tissue sample and reagent mix are added to the tubes and homogenized using a common benchtop vortexer (with appropriate adapters) or in a bead mill, such as the TissueLyser II or LT, followed by a short lysis in the same tube. DNA is then extracted from the lysate using proven QIAamp technology. The pretreatment reduces the total DNA extraction time from several hours to just 30 minutes.
As well as speeding up the total time to extract DNA, the mechanical disruption step and thorough lysis protocol increase DNA yield. Improvements in yield from different tissue types have been evaluated using the QIAxpert and a fluorometric assay. The results show that the QIAamp Fast DNA Tissue Kit is capable of extracting up to tenfold more DNA compared to standard methods, while also providing one of the fastest protocols.
Most NGS applications require high-molecular-weight DNA (>10 kb) to allow for larger spans to be sequenced and assembled with bioinformatic tools. Some disruption methods may fragment the DNA through shearing, which can affect downstream analysis. Compared to other kits that show high fragmentation down to a few kb, the QIAamp Fast DNA Tissue Kit allows you to obtain DNA between 25 and 50 kb and is therefore very well suited to any PCR or NGS application.

Molecular techniques such as PCR and NGS are revealing previously unknown details from complex experimental samples. To achieve reliable results using these techniques it is essential to obtain sufficient amounts of high-quality DNA. This can be challenging when working with fibrous or hard tissues because they are difficult to lyse, which directly affects the amount of DNA that is released. To address this, our new QIAamp Fast DNA Tissue Kit combines mechanical, chemical and enzymatic tissue lysis, which improves DNA yields by 5- to 10-fold compared to standard methods. The pretreatment reduces the total DNA extraction time from several hours to just 30 minutes, so in addition to achieving high-integrity DNA suitable for PCR and NGS applications, you also get significant time savings.

The QIAamp Fast DNA Tissue Kit uses a combination of mechanical, chemical and enzymatic lysis to homogenize samples. The included Tissue Disruption Tubes contain a specially shaped bead that effectively disrupts tissue when agitated. As little as 5 minutes on a desktop vortexer or 30 seconds in a high-powered bead mill is sufficient to homogenize the tissue. The optimized chemistry allows homogenization of the tissue and simultaneous stabilization of DNA released from the disrupted tissue. The digestion buffer mix also contains proteinase K, which completely lyses the sample material in a short subsequent incubation and is not affected by mechanical homogenization. Genomic DNA is subsequently purified using proven QIAamp technology, delivering pure DNA for any downstream application like PCR or sequencing. Additionally, the QIAamp Fast DNA Tissue Kit can be conveniently used with the QIAcube for automated sample preparation.

The QIAamp Fast DNA Tissue Kit delivers high yields of pure DNA from any tissue type and is suitable for PCR and NGS applications.