Title : TLR4 and NFκB signaling is critical for taxol resistance in ovarian carcinoma cells.

Pub. Date : 2018 Mar

PMID : 28771725






6 Functional Relationships(s)
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1 We report here that toll-like receptor 4 (TLR4) and ABCB1 are upregulated in SKOV3 ovarian carcinoma cells that acquired resistance to the anticancer drug taxol. Paclitaxel ATP binding cassette subfamily B member 1 Homo sapiens
2 A sub-lethal dose of taxol induced ABCB1 protein expression in taxol-resistant SKOV3 cells. Paclitaxel ATP binding cassette subfamily B member 1 Homo sapiens
3 A sub-lethal dose of taxol induced ABCB1 protein expression in taxol-resistant SKOV3 cells. Paclitaxel ATP binding cassette subfamily B member 1 Homo sapiens
4 Notably, the NFkappaB pathway was significantly activated by taxol, and inhibition of this pathway suppressed TLR4-regulated ABCB1 expression. Paclitaxel ATP binding cassette subfamily B member 1 Homo sapiens
5 Consistent with these results, ectopic expression of TLR4 in taxol-sensitive SKOV3 cells enhanced ABCB1 expression and conferred resistance to taxol. Paclitaxel ATP binding cassette subfamily B member 1 Homo sapiens
6 These results demonstrate that taxol activates the TLR4-NFkappaB pathway which in turn induces ABCB1 gene expression. Paclitaxel ATP binding cassette subfamily B member 1 Homo sapiens