Abstract
Primary human breast cancers invade surrounding fat and contact adipocytes, inflammatory infiltrates, and fibrous stroma. This tissue niche influences breast tumor progression. Here, we present a protocol to enable the in vitro study of the complex interactions that occur between breast cancer cells and adipose cells. We describe how to obtain different adipose cell populations, including adipose-derived stem cells, immature adipocytes, and mature adipocytes, from human breast fat tissue and detail the application for co-culture assays with breast cancer cells. For complete details on the use and execution of this protocol, please refer to Picon-Ruiz et al. (2016) and Qureshi et al. (2020).