From: Expression of MDR1, HIF-1α and MRP1 in sacral chordoma and chordoma cell line CM-319
positive | negative | positive rate | χ 2 | P | |
---|---|---|---|---|---|
HIF-1α(n) | |||||
chordoma | 40 | 10 | 80% | 18.55 | <0.005 |
nucleus pulposus | 3 | 12 | 20% | ||
MRP1 (n) | |||||
chordoma | 37 | 13 | 74% | 11.10 | <0.005 |
nucleus pulposus | 4 | 11 | 26.7% | ||
MDR1 (n) | |||||
chordoma | 5 | 45 | 10% | 0.343 | >0.5 |
nucleus pulposus | 3 | 12 | 20% |