Title : Lapatinib Suppresses HER2-Overexpressed Cholangiocarcinoma and Overcomes ABCB1- Mediated Gemcitabine Chemoresistance.

Pub. Date : 2022

PMID : 35463361






4 Functional Relationships(s)
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1 Lapatinib Suppresses HER2-Overexpressed Cholangiocarcinoma and Overcomes ABCB1- Mediated Gemcitabine Chemoresistance. Lapatinib ATP binding cassette subfamily B member 1 Homo sapiens
2 The synergistic effect of lapatinib and gemcitabine was interpreted by docking analysis, ABCB1-associated ATPase assay, rhodamine transport assay and LC-MS/MS analyses. Lapatinib ATP binding cassette subfamily B member 1 Homo sapiens
3 Lapatinib exerts a dual effect on HER2-overexpressed CCA, suppressing the growth of CCA cells by inhibiting HER2 and HER2-dependent downstream signaling pathways while inhibiting ABCB1 transporter function, allowing for the accumulation of active gemcitabine metabolites within cells. Lapatinib ATP binding cassette subfamily B member 1 Homo sapiens
4 Conclusions: Our data demonstrates that lapatinib can not only inhibit growth of CCA overexpressing HER2, but can also circumvent ABCB1-mediated chemoresistance after gemcitabine treatment. Lapatinib ATP binding cassette subfamily B member 1 Homo sapiens