Title : Src and CXCR4 are involved in the invasiveness of breast cancer cells with acquired resistance to lapatinib.

Pub. Date : 2014

PMID : 24200972






5 Functional Relationships(s)
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1 Src and CXCR4 are involved in the invasiveness of breast cancer cells with acquired resistance to lapatinib. Lapatinib SRC proto-oncogene, non-receptor tyrosine kinase Homo sapiens
2 Lapatinib-resistant cells have an increased Src kinase activity and persistent levels of activation of ERK1/2 and AKT compared with parental cells. Lapatinib SRC proto-oncogene, non-receptor tyrosine kinase Homo sapiens
3 Treatment with the Src inhibitor saracatinib in combination with lapatinib reduces AKT and ERK1/2 phosphorylation and restores the sensitivity of resistant cells to lapatinib. Lapatinib SRC proto-oncogene, non-receptor tyrosine kinase Homo sapiens
4 Taken together, our results demonstrate that breast cancer cells with acquired resistance to lapatinib have a more aggressive phenotype compared with their parental counterpart, and that Src signaling and CXCR4 play an important role in this phenomenon, thus representing potential targets for therapeutic intervention in lapatinib-resistant breast cancer patients. Lapatinib SRC proto-oncogene, non-receptor tyrosine kinase Homo sapiens
5 Taken together, our results demonstrate that breast cancer cells with acquired resistance to lapatinib have a more aggressive phenotype compared with their parental counterpart, and that Src signaling and CXCR4 play an important role in this phenomenon, thus representing potential targets for therapeutic intervention in lapatinib-resistant breast cancer patients. Lapatinib SRC proto-oncogene, non-receptor tyrosine kinase Homo sapiens