Recommended sample types and sample collection details are described below.
For instructions regarding sample submission and shipping, please contact QIAGEN Technical Services. Samples accepted are total RNA, cells, or tissue. For cells and tissue, an RNA isolation service is available.
For all samples, sample collection should be carried out in a timely manner in an RNase-free environment. Please note the minimum amount of starting materials required (see below for requirements for each sample type). If you have less than the minimum amount or your previously isolated samples have been stored differently than we recommend, contact QIAGEN Technical Services before submitting your samples.
Before shipping:
- Obtain a sample submission form from QIAGEN Technical Services.
- Complete the form and include it with the sample shipment.
- Include the amount of material and its storage conditions.
- Sign and date the form.
- Ship according to the instructions for your sample type.
Cells
Provide at least 0.5 million (106) cells for each sample (specify number of cells on the submission form). Snap freeze the cell pellets in liquid nitrogen, store samples frozen at –80°C, and ship on dry ice.
Tissue
Provide at least 50 mg of tissue for each sample (specify the weight of the tissue on the submission form). Snap freeze tissues in liquid nitrogen. Store samples frozen at –80°C, and ship on dry ice.
Total RNA
Where total RNA samples are submitted, a minimum concentration of 0.5 mg/ml is required. If the RNA concentration is below 0.5 mg/ml, please contact QIAGEN Technical Services. A260/A280 should be >2.0 and A260/A230 should be >1.7. All measurements should be taken in RNase-free 10 mM Tris buffer; pH 8.0.
QIAGEN will measure RNA concentration with a spectrophotometer and assess the quality of the submitted RNA using either an Agilent Bioanalyzer or QIAxcel.
If the submitted samples are cells or tissue, RNA extraction can be performed using the RNA Isolation Service.
Other sample types
Please contact QIAGEN Technical Services.
Sample processing
RNA samples are processed by QIAGEN for RT2 Profiler PCR Arrays using the following steps:
- Reverse-transcription using the RT² First Strand Kit (FFPE samples, LCM, FNAB, and other small samples may require pre-amplification using RT² PreAMP cDNA Synthesis Kit and RT² PreAMP Pathway Primer Mixes)
- Real-time detection on cataloged or custom PCR array
- Data analysis using dedicated PCR array data analysis software
- Data report delivered via email or secure FTP site
Data analysis
Data analysis is performed using dedicated PCR array data analysis software. Data in an electronic form can be downloaded from a secure FTP website or delivered via email. A complete data and experiment report includes:
- Raw CT values
- ΔCT, analysis
- Excel spreadsheet (data analysis using pair-wise comparisons, including raw data, tabular results as well as Scatter, 3D, and volcano plots)
Contact a Technical Support representative to order or to discuss your specific need at support@sabiosciences.com.