Table 2.
Results for RNA Obtained from Formalin-fixed, Paraffin-embedded Tissue Specimens
| Cryopreserved | FFPE Tissue | ||||||||
| Sample | Type | Tissue | Asterand Quality Grade | RIN for Cryoa | RIN for FFPEa | RNA conc (ng/uL) | PCR Ctb | # Genes Detectedc | Correlation of Replicates (R2) d |
| 1 | Kidney | Normal | Passed | 9.2 | 2.4 | 153 | 30 | 438 | 0.91 |
| 2 | Kidney | Normal | Passed | 8.9 | 2.3 | 120 | 25 | 452 | 0.98 |
| 3 | Stomach | Normal | Passed | 8.8 | 2.4 | 88 | 31 | 310 | 0.86 |
| Passing RNA Ave | 9.0 | 2.4 | 120 | 29 | 400 | 0.92 | |||
| 4 | Breast | Tumor | Failed | 2.3 | 1.9 | 119 | 30 | 426 | 0.95 |
| 5 | Breast | Tumor | Failed | 2.5 | 1.2 | 71 | 25 | 338 | 0.78 |
| 6 | Lung | Tumor | Failed | 2.4 | 1.0 | 54 | 29 | 457 | 0.64 |
| 7 | Kidney | Normal | Failed | 2.4 | 2.3 | 87 | 32 | 420 | 0.91 |
| 8 | Kidney | Normal | Failed | 2.7 | 2.3 | 61 | 30 | 229 | 0.91 |
| 9 | Kidney | Normal | Failed | NA | 2.6 | 133 | 32 | 377 | 0.69 |
| 10 | Kidney | Normal | Failed | 2.4 | 2.4 | 41 | 32 | 164 | 0.56 |
| Failing RNA Ave | 2.5 | 2.0 | 81 | 30 | 344.4 | 0.78 | |||
NA = Not Available
a RNA Integrity number as assessed by 2100 Bioanalyzer
b Cycle threshold of amplification of RPL-13a, results compared to Ct of intact total RNA
c Genes detected over background by Beadstudio software with a certainty of p = 0.99
d Technical replicates of same RNA extraction run in separate array experiments