Ligands | Radiolabel | K i aor IC 50 b(nM) | Comments | References | |
---|---|---|---|---|---|
σ 1 | σ 2 | ||||
| 125I | 554a | 1.0a | Tumour-to-muscle ratio = 6 (4 h, EMT-6 tumoured mice) | [41] |
| 76Br | 5484a | 12a | Tumour-to-muscle ratio = 2 (2 h, EMT-6 tumoured mice) | [42] |
| 76Br | 12900a | 8.2a | Tumour-to-muscle ratio = 8 (2 h, EMT-6 tumoured mice) | [42] |
| 11C | 3078a | 10a | Tumour-to-muscle ratio = 3 (1 h, EMT-6 tumoured mice) | [43] |
| 18F | 330a | 6.9a | Tumour-to-muscle ratio = 3 (2 h, EMT-6 tumoured mice) | [40] |
| 18F | 2150a,c | 0.26a,c | Tumour-to-muscle ratio = 8 (2 h, EMT-6 tumoured mice) | [40] |
125I, 18F | 2.8a,d | Tumour-to-muscle ratio = 8 (2 h, Line 66 breast tumoured mice) | [44] | ||
| 18F | 1711a | 0.8a | Tumour-to-muscle ratio = 2 (2 h, EMT-6 tumoured mice) | [45] |
| 18F | 6b | 2b | Brain-to-muscle ratio = 3 (2 h, naïve mice) | [45] |