Imperial College London

DrArmandoDel Rio Hernandez

Faculty of EngineeringDepartment of Bioengineering

Senior Lecturer



+44 (0)20 7594 5187a.del-rio-hernandez




308Bessemer BuildingSouth Kensington Campus






BibTex format

author = {Cortes, E and Lachowski, D and Robinson, B and Sarper, M and Teppo, JS and Thorpe, SD and Lieberthal, TJ and Iwamoto, K and Lee, DA and Okada-Hatakeyama, M and Varjosalo, MT and Del, Río Hernández AE},
doi = {10.15252/embr.201846557},
journal = {EMBO Reports},
title = {Tamoxifen mechanically reprograms the tumor microenvironment via HIF-1A and reduces cancer cell survival},
url = {},
volume = {20},
year = {2019}

RIS format (EndNote, RefMan)

AB - The tumor microenvironment is fundamental to cancer progression, and the influence of its mechanical properties is increasingly being appreciated. Tamoxifen has been used for many years to treat estrogen-positive breast cancer. Here we report that tamoxifen regulates the level and activity of collagen cross-linking and degradative enzymes, and hence the organization of the extracellular matrix, via a mechanism involving both the G protein-coupled estrogen receptor (GPER) and hypoxia-inducible factor-1 alpha (HIF-1A). We show that tamoxifen reduces HIF-1A levels by suppressing myosin-dependent contractility and matrix stiffness mechanosensing. Tamoxifen also downregulates hypoxia-regulated genes and increases vascularization in PDAC tissues. Our findings implicate the GPER/HIF-1A axis as a master regulator of peri-tumoral stromal remodeling and the fibrovascular tumor microenvironment and offer a paradigm shift for tamoxifen from a well-established drug in breast cancer hormonal therapy to an alternative candidate for stromal targeting strategies in PDAC and possibly other cancers.
AU - Cortes,E
AU - Lachowski,D
AU - Robinson,B
AU - Sarper,M
AU - Teppo,JS
AU - Thorpe,SD
AU - Lieberthal,TJ
AU - Iwamoto,K
AU - Lee,DA
AU - Okada-Hatakeyama,M
AU - Varjosalo,MT
AU - Del,Río Hernández AE
DO - 10.15252/embr.201846557
PY - 2019///
SN - 1469-221X
TI - Tamoxifen mechanically reprograms the tumor microenvironment via HIF-1A and reduces cancer cell survival
T2 - EMBO Reports
UR -
UR -
UR -
VL - 20
ER -