articleProceedings of the National Academy of SciencesDec 18, 2014BRONZE OA

Human 3D vascularized organotypic microfluidic assays to study breast cancer cell extravasation

Massachusetts Institute of Technology · Istituto Ortopedico Galeazzi · +4 more institutions

PubMed
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Abstract

A key aspect of cancer metastases is the tendency for specific cancer cells to home to defined subsets of secondary organs. Despite these known tendencies, the underlying mechanisms remain poorly understood. Here we develop a microfluidic 3D in vitro model to analyze organ-specific human breast cancer cell extravasation into bone- and muscle-mimicking microenvironments through a microvascular network concentrically wrapped with mural cells. Extravasation rates and microvasculature permeabilities were significantly different in the bone-mimicking microenvironment compared with unconditioned or myoblast containing matrices. Blocking breast cancer cell A3 adenosine receptors resulted in higher extravasation rates…

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