Title : Mislocalization of p27 to the cytoplasm of breast cancer cells confers resistance to anti-HER2 targeted therapy.

Pub. Date : 2014 Dec 30

PMID : 25587029






6 Functional Relationships(s)
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1 To address the significance of p27 mislocalization in Her2+ breast cancer cells we interrogated the cellular response to the dual-Her2/EGFR kinase inhibitor, lapatinib. Lapatinib interferon alpha inducible protein 27 Homo sapiens
2 Knockdown of p27 using shRNA sensitized Her2+ cells to lapatinib-induced apoptosis. Lapatinib interferon alpha inducible protein 27 Homo sapiens
3 Moreover, expression of a constitutively cytoplasmic form of p27 (p27DeltaNLS) reversed the lapatinib-induced apoptosis, suggesting that cytoplasmic p27 contributed to lapatinib resistance in Her2+ breast cancer cells by suppressing apoptosis. Lapatinib interferon alpha inducible protein 27 Homo sapiens
4 Moreover, expression of a constitutively cytoplasmic form of p27 (p27DeltaNLS) reversed the lapatinib-induced apoptosis, suggesting that cytoplasmic p27 contributed to lapatinib resistance in Her2+ breast cancer cells by suppressing apoptosis. Lapatinib interferon alpha inducible protein 27 Homo sapiens
5 Moreover, expression of a constitutively cytoplasmic form of p27 (p27DeltaNLS) reversed the lapatinib-induced apoptosis, suggesting that cytoplasmic p27 contributed to lapatinib resistance in Her2+ breast cancer cells by suppressing apoptosis. Lapatinib interferon alpha inducible protein 27 Homo sapiens
6 Moreover, expression of a constitutively cytoplasmic form of p27 (p27DeltaNLS) reversed the lapatinib-induced apoptosis, suggesting that cytoplasmic p27 contributed to lapatinib resistance in Her2+ breast cancer cells by suppressing apoptosis. Lapatinib interferon alpha inducible protein 27 Homo sapiens