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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Mol Cancer Res. 2017 Feb 14;15(6):765–775. doi: 10.1158/1541-7786.MCR-16-0183

Table 1. Mutational data and GI50s for cell lines treated with PI3K inhibitors.

Cell line ER, PR, HER2/Neu/ERBB2 status, PIK3CA mutational status, PTEN mutational status, other documented mutations, and inhibitor GI50s observed (pan PI3Ki: GDC-0941, PI3K-αi: BYL719, PI3K-βi: AZD6482). Abbreviations: pos = positive, neg = negative, wt = wild type, mut = mutation, del = deletion, amp = amplification, missense = missense mutation, TP53 = Tumor protein p53, CDKN2A = Cyclin-dependent kinase inhibitor 2A, HDM2 = Human double minute 2 homolog, RB1 = Retinoblastoma protein, Smad4 = Mothers against decapentaplegic homolog 4 and EGFR = Epidermal growth factor receptor.

Cell Line ER PR HER2 PIK3CA PTEN Other Mutations Pan PI3Ki GI50 (μM) PI3Kαi GI50 (μM) PI3Kβi GI50 (μM)
IME/HMEC pos pos neg wt wt hTERT immortalized 1.41 4.90 >10
BT474 pos pos pos K111N wt TP53 missense 0.09 0.30 3.31
MCF7 pos pos neg E545K wt CDKN2A del, HDM2 amp 0.14 0.34 9.82
HCC70 neg neg neg wt nonsense mut 0.85 0.85 0.54
BT549 neg neg neg wt nonsense mut RB1 del, TP53 missense 0.62 >10 >10
MDAMB468 neg neg neg wt nonsense mut RB1 del, SMAD4 del, TP53 missense, EGFR amp 0.14 >10 0.10