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Combined blockade of activating ERBB2 mutations and ER results in synthetic lethality of ER+/HER2 mutant breast cancer.
CONCLUSIONS: ERBB2 mutations hyperactivate the HER3/PI3K/AKT/mTOR axis, leading to antiestrogen resistance in ER+ breast cancer. Dual blockade of the HER2 and ER pathways is required for the treatment of ER+/HER2 mutant breast cancers. PMID: 30314968 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - October 12, 2018 Category: Cancer & Oncology Authors: Croessmann S, Formisano L, Kinch L, Gonzalez-Ericsson PI, Sudhan DR, Nagy RJ, Mathew A, Bernicker EH, Cristofanilli M, He J, Cutler RE, Lalani AS, Miller VA, Lanman RB, Grishin N, Arteaga CL Tags: Clin Cancer Res Source Type: research

Abstract S3-03: Nuclear FGFR1 interaction with estrogen receptor (ER) {alpha} is associated with resistance to endocrine therapy in ER+/FGFR1-amplified breast cancer
Conclusions: These data support a critical role of ER and FGFR1 interaction in endocrine resistance in ER+/FGFR1-amplified breast cancer. Targeting of FGFR1 in combination with antiestrogens may abrogate resistance to endocrine therapy in these tumors and is worthy of clinical investigation.Citation Format: Formisano L, Young CD, Bhola NE, Bulen B, Estrada VM, Wagle N, Van Allen E, Red Brewer ML, Jansen VM, Guerrero AL, Giltnane JM, Strcker T, Arteaga CL. Nuclear FGFR1 interaction with estrogen receptor (ER) α is associated with resistance to endocrine therapy in ER+/FGFR1-amplified breast cancer. [abstract]. In: Proceedi...
Source: Cancer Research - February 18, 2016 Category: Cancer & Oncology Authors: Formisano, L., Young, C., Bhola, N., Bulen, B., Estrada, V., Wagle, N., Van Allen, E., Red Brewer, M., Jansen, V., Guerrero, A., Giltnane, J., Strcker, T., Arteaga, C. Tags: General Session Abstracts Source Type: research