Nonetheless, recent findings have shown that a conditional knockout of FAT4 in mouse livers failed to result in liver overgrowth or tumorigenesis, obscuring the role of FAT4 in Hippo-mediated mammalian overgrowth [27].
Again, the stem cells from Rps27l −/− fetal livers failed to rescue sterilized recipient mice with 100% death within 12 days post reconstitution, whereas those from wild type or heterozygous fetal liver caused a 100% rescue, indicating an intrinsic defect.
Entirely consistent with the phenotypic data, we found that whereas control livers up-regulate a series of gene sets associated with active cell cycle (e.g. "Serum_Fibroblast_CellCycle" in Figure 7C, See Table S8 for full analysis) following PH, UPF2 deficient livers fail to do so.
Liver-specific deletion of Yap leads to the loss of biliary epithelial cells, and the liver failed to develop bile ducts (Zhang et al., 2010; Lee et al., 2016).
By contrast, naïve T cells activated by virus within the liver failed to upregulate expression of either of these T cell effector molecules (Fig. 4A).
We found that, in contrast to CD8+ T cells activated in the spleen or lymph nodes, the majority of naïve CD8+ T cells activated within the liver failed to down regulate CD62L (data not shown).
Samples from the dog liver failed to generate an amplicon signal.
It has been recently suggested that NSun2-mediated methylation of mRNAs may increase their half-life (Zhang et al., 2012); yet gene expression assays in various tissues including testis and liver failed to uncover any major changes in mRNA abundance when NSun2 was deleted (Hussain et al., 2013; Tuorto et al., 2012).
But under abnormal conditions, such as liver necrosis, the liver fails to absorb the lactate, which can cause muscle fatigue and acidosis, leading to hypoxia and necrosis of other tissue types [5].
The paradox of selective hepatic insulin resistance, wherein the insulin-resistant liver fails to suppress glucose production but continues to produce lipids, has been central to the pathophysiology of hepatosteatosis and hyperglycemia.
Since the liver contains a large number of CD56+ T cells [23], [24], an important question is why CD56+ T cells in liver fail to protect hepatocytes from HCV infection and eliminate the virus in the liver.
