Title : Sunitinib inhibits MEK/ERK and SAPK/JNK pathways and increases sodium/iodide symporter expression in papillary thyroid cancer.

Pub. Date : 2010 Sep

PMID : 20629553






10 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 BACKGROUND: Sunitinib malate (Sutent, Pfizer, Inc.; SU11248) is a selective, multitargeted inhibitor of receptor tyrosine kinases and has been shown to inhibit receptors for VEGF, PDGF, KIT, FLT3, and RET. Sunitinib ret proto-oncogene Homo sapiens
2 BACKGROUND: Sunitinib malate (Sutent, Pfizer, Inc.; SU11248) is a selective, multitargeted inhibitor of receptor tyrosine kinases and has been shown to inhibit receptors for VEGF, PDGF, KIT, FLT3, and RET. Sunitinib ret proto-oncogene Homo sapiens
3 BACKGROUND: Sunitinib malate (Sutent, Pfizer, Inc.; SU11248) is a selective, multitargeted inhibitor of receptor tyrosine kinases and has been shown to inhibit receptors for VEGF, PDGF, KIT, FLT3, and RET. Sunitinib ret proto-oncogene Homo sapiens
4 The objective of this study was to determine the effects of sunitinib on signal transduction pathways and on gene expression of iodide-metabolizing proteins in papillary cancer cells with the RET/PTC1 rearrangement. Sunitinib ret proto-oncogene Homo sapiens
5 RESULTS: Sunitinib inhibited proliferation of RET/PTC1 subclones in a time- and dose-related manner. Sunitinib ret proto-oncogene Homo sapiens
6 Incubation of RET/PTC1 cells with 1 microM sunitinib inhibited their migration potential and transformed their morphology. Sunitinib ret proto-oncogene Homo sapiens
7 Sunitinib inhibited RET autophosphorylation at Y1062 and the activation of signal transducer and activator of transcription 3 by blocking Y705 phosphorylation. Sunitinib ret proto-oncogene Homo sapiens
8 Sunitinib treatment of RET/PTC1 cell lines, in combination, with forskolin induced expression of the sodium (Na)/iodide (I) symporter (NIS) and the transcription factors that bind the NIS upstream enhancer. Sunitinib ret proto-oncogene Homo sapiens
9 CONCLUSION: Sunitinib appears to target the cytosolic MEK/ERK and SAPK/JNK pathways in the RET/PTC1 cell lines, suggesting that blocking these pathways is at least part of the mechanism by which sunitinib inhibits cell proliferation and causes stimulation of NIS gene expression in RET/PTC1 cells. Sunitinib ret proto-oncogene Homo sapiens
10 CONCLUSION: Sunitinib appears to target the cytosolic MEK/ERK and SAPK/JNK pathways in the RET/PTC1 cell lines, suggesting that blocking these pathways is at least part of the mechanism by which sunitinib inhibits cell proliferation and causes stimulation of NIS gene expression in RET/PTC1 cells. Sunitinib ret proto-oncogene Homo sapiens