Words similar to tgfβ-mediated
Example sentences for: tgfβ-mediated
How can you use “tgfβ-mediated” in a sentence? Here are some example sentences to help you improve your vocabulary:
Malignant tumor cells frequently show deregulation and hyperactivation of signalling pathways, one of which is represented by the TGFβ signal transduction pathway [ 1 ] . TGFβ has been shown to potently inhibit proliferation of most epithelial, endothelial and hematopoietic cells [ 2 ] . However, during tumor progression malignant cells may become refractory to TGFβ-mediated cell cycle arrest.
Evidence has been accumulated that TGFβ promotes late-stage tumorigenesis by stimulating angiogenesis and invasive behaviour of tumor cells, enhancing immunosuppression and supporting epithelial-mesenchymal transition of cancer cells [ 4 ] . Furthermore, TGFβ is believed to be part of a vicious circle in bone metastases as it gets released from osteoclast-degraded bone substance and subsequently stimulates PTHrP gene expression in nearby metastatic cancer cells which in turn leads to an activation of osteoclastic bone resorption [ 11 ] . Therefore, it is of great interest to understand in more detail the molecular aspects of TGFβ-mediated gene expression in metastatic breast cancer cells and to explore ways to interfere with this tumorigenic signalling.
Here we report that two small molecules, SB-202190 and SB-203580, diminished TGFβ-induced expression of TGFβ target genes which was accompanied by a perturbation of TGFβ-mediated Smad3 nuclear accumulation, a crucial step in TGFβ signal transduction.
TGFβ induced pai-1 mRNA was reduced to approximately 50% by the SB inhibitor, whereas TGFβ-mediated expression of PTHrP and uPA was highly sensitive to SB-203580 treatment.
The delayed TGFβ-mediated entry of Smad3 into the nucleus in the presence of SB-203580 prompted us to examine the effect of SB-203580 on TGFβ-induced gene expression in a time-course experiment.
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