| First Author | Sturm JW | Year | 2004 |
| Journal | Cell Physiol Biochem | Volume | 14 |
| Issue | 4-6 | Pages | 249-60 |
| PubMed ID | 15319528 | Mgi Jnum | J:105403 |
| Mgi Id | MGI:3614937 | Doi | 10.1159/000080334 |
| Citation | Sturm JW, et al. (2004) Altered apoptotic response and different liver structure during liver regeneration in FGF-2-deficient mice. Cell Physiol Biochem 14(4-6):249-60 |
| abstractText | BACKGROUND/AIMS: To investigate postulated differences related to FGF-2 in liver morphology and expression of apoptosis-related factors after partial hepatectomy (PH). METHODS: Homogeneous FGF-2-deficient mice (C57BL/6J) with their FGF-2-(+/+) littermates (control) were used to examine the structure of regenerating livers after PH with light and electron microscopy. The regenerative response and BrDu incorporation were monitored. The expression of BclX-l, Bax, Fas, TNF-alpha, and Caspase-3 were measured by reverse transcription PCR (RT-PCR) and Northern blot analysis. RESULTS: In the FGF-2-(-/-) group, hepatocytes and endothelial cells contain mitochondria with atypical cristae and fragmented endoplasmic reticulum structures compared to control. Sinusoids show irregular basal laminae. These changes are in accordance with a differential expression of apoptosis-related factors: FasL was expressed throughout the entire observation span (days 0 to 10 post-PH). Following PH, tumor necrosis factor alpha (TNFalpha)-mRNA levels were higher in FGF-2-(+/+) animals, while Fas as well as Bax and BclXl were overexpressed in FGF-2-(-/-) mice. Caspase-3-mRNA was similarly expressed in both groups, but Caspase-3 activity was elevated for 4 days in FGF-2-(-/-) mice. CONCLUSION: Despite morphologic differences, differences in the time schedule of DNA synthesis and differences in apoptotic response, the dynamics of liver regeneration in FGF-2-(-/-) mice were not impaired. |
