Table 1. Histopathological analysis following long-term DHX9 suppression in DHX9/rtTA mice.
Histopathological analysis was performed on representative tissues extracted from FLuc.1309/rtTADHX9.837/rtTA, and DHX9.1271/rtTA mice treated with 1 mg/ml DOX for 6 months. Multifocal, random microgranulomas (Grade 1) were present in the liver of all mice analyzed and are likely a consequence of non-specific bacterial or viral infection. One DHX9.837/rtTA (+DOX) liver sample displayed moderate hepatic lipidosis which was not observed in the DHX9.1271/rtTA liver sample.
FLuc.1309/ rtTA |
FLuc.1309/ rtTA |
DHX9.837/ rtTA |
DHX9.1271/ rtTA |
||
---|---|---|---|---|---|
DOX: | − | + | + | + | |
Skin | N | N | N | N | |
Small Intestine | N | N | N | N | |
Large Intestine | N | N | N | N | |
Liver | A | A | A | A | |
Microgranuloma, multifocal, random |
1 | 1 | 1 | 1 | |
Hepatic lipidosis, microvacuolar, centrolubular, diffuse |
3 | ||||
Thymus | N | N | N | N | |
Spleen | N | N | N | N | |
Heart | N | N | N | N |
Key: N = no significant lesion, A = lesion observed, 0 = no tissue; Grade 1 = modest, rare, Grade 2 = mild, infrequent, Grade 3 = moderate, frequent, Grade 4 = severe, diffuse.