Table 2.
Expression of Retinoid Receptors in Normal, Dysplastic, and Malignant Esophageal Tissues
| Receptor | % (positive/total) | |||
|---|---|---|---|---|
| Normal | Distant normal | Dysplastic | Tumor | |
| RAR-β | 87.5 (14/16) | 96.0 (96/100) | 56.7 (17/30)* | 53.5 (84/157)†‡ |
| RXR-α | 100 (16/16) | 100 (100/100) | 96.6 (28/29) | 97.5 (153/157) |
*P < 0.034 by χ2 test between normal tissues and dysplastic tissues.
†P < 0.009 by χ2 test between normal tissues and tumor tissues.
‡P < 0.00001 by χ2 test between distant normal tissues and tumor or dysplastic tissues.