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@article{Perone:2019:10.1038/s41467-019-09676-y,
author = {Perone, Y and Farrugia, AJ and Meira, AR and Gyrffy, B and Ion, C and Uggetti, A and Chronopoulos, A and Marrazzo, P and Faronato, M and Shousha, S and Davies, C and Steel, JH and Patel, N and del, Rio Hernandez A and Coombes, C and Pruneri, G and Lim, A and Calvo, F and Magnani, L},
doi = {10.1038/s41467-019-09676-y},
journal = {Nature Communications},
title = {SREBP1 drives Keratin 80-dependent cytoskeletal changes and invasive behavior in endocrine resistant ERα breast cancer},
url = {http://dx.doi.org/10.1038/s41467-019-09676-y},
volume = {10},
year = {2019}
}

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TY  - JOUR
AB  - Approximately 30% of ERα breast cancer patients relapse with metastatic disease following adjuvant endocrine therapies. The connection between acquisition of drug resistance and invasive potential is poorly understood. In this study, we demonstrate that the type II keratin topological associating domain undergoes epigenetic reprogramming in aromatase inhibitors (AI)-resistant cells, leading to Keratin-80 (KRT80) upregulation. KRT80 expression is driven by de novo enhancer activation by sterol regulatory element-binding protein 1 (SREBP1). KRT80 upregulation directly promotes cytoskeletal rearrangements at the leading edge, increased focal adhesion and cellular stiffening, collectively promoting cancer cell invasion. Shearwave elasticity imaging performed on prospectively recruited patients confirms KRT80 levels correlate with stiffer tumors. Immunohistochemistry showed increased KRT80-positive cells at relapse and, using several clinical endpoints, KRT80 expression associates with poor survival. Collectively, our data uncover an unpredicted and potentially targetable direct link between epigenetic and cytoskeletal reprogramming promoting cell invasion in response to chronic AI treatment.
AU  - Perone,Y
AU  - Farrugia,AJ
AU  - Meira,AR
AU  - Gyrffy,B
AU  - Ion,C
AU  - Uggetti,A
AU  - Chronopoulos,A
AU  - Marrazzo,P
AU  - Faronato,M
AU  - Shousha,S
AU  - Davies,C
AU  - Steel,JH
AU  - Patel,N
AU  - del,Rio Hernandez A
AU  - Coombes,C
AU  - Pruneri,G
AU  - Lim,A
AU  - Calvo,F
AU  - Magnani,L
DO  - 10.1038/s41467-019-09676-y
PY  - 2019///
SN  - 2041-1723
TI  - SREBP1 drives Keratin 80-dependent cytoskeletal changes and invasive behavior in endocrine resistant ERα breast cancer
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/s41467-019-09676-y
UR  - http://hdl.handle.net/10044/1/69684
VL  - 10
ER  -

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