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Tight junction proteins and signal transduction pathways in hepatocytes.
- T. Kojima, M. Murata, +10 authors N. Sawada
- Biology, Medicine
- Histology and histopathology
- 1 November 2009
Tight junctions of hepatocytes play crucial roles in the barrier to keep bile in bile canaliculi away from the blood circulation, which we call the blood-billiary-barrier (Kojima et al., 2003). Tight… Expand
Role of the p38 MAP-Kinase Signaling Pathway for Cx32 and Claudin-1 in the Rat Liver
- T. Kojima, T. Yamamoto, +6 authors N. Sawada
- Chemistry, Medicine
- Cell communication & adhesion
- 1 January 2003
Liver regeneration and cholestasis are associated with adaptive changes in expression of gap and tight junctions through signal transduction. The roles of stress responsitive MAP-kinase, p38… Expand
Oncogenic Raf-1 regulates epithelial to mesenchymal transition via distinct signal transduction pathways in an immortalized mouse hepatic cell line.
The epithelial to mesenchymal transition (EMT) is considered to be an important event during malignant tumor progression and metastasis. Although Raf/MEK/ERK signaling causes EMT, the mechanisms,… Expand
Phosphorylation of ezrin enhances microvillus length via a p38 MAP-kinase pathway in an immortalized mouse hepatic cell line.
The apical microvilli are closely related with the development and the maintenance of cell polarization, and the length of microvilli varies in a regular way among cell types. Ezrin, a member of the… Expand
Oncostatin M induces upregulation of claudin-2 in rodent hepatocytes coinciding with changes in morphology and function of tight junctions.
In rodent livers, integral tight junction (TJ) proteins claudin-1, -2, -3, -5 and -14 are detected and play crucial roles in the barrier to keep bile in bile canaculi away from the blood circulation.… Expand
Inhibition of MAP kinase activity moderates changes in expression and function of Cx32 but not claudin-1 during DNA synthesis in primary cultures of rat hepatocytes
The signal transduction pathways and activation of the MAP kinase or PI3 kinase signaling cascade regulate a variety of cellular processes, including proliferation and differentiation in hepatocytes.… Expand
I-42 Regulation of a hepatitis C virus co-receptor claudin-1 in hepatocytes
The polarization of hepatocytes involves formation of functionally distinct sinusoidal (basolateral) and bile canalicular (apical) plasma membrane domains that are separated by tight junctions. In… Expand