ER+ Breast Cancer Mammosphere Formation and Analysis

Methods Mol Biol. 2022:2422:233-245. doi: 10.1007/978-1-0716-1948-3_16.

Abstract

Mammosphere formation assays are a popular and convenient technique in the study of breast cancer by providing an in vitro mechanism by which to study breast cancer stem cell (BCSC) contribution to tumorigenesis, as well as more closely mimicking the three-dimensional tumor microenvironment. In these assays, BCSCs are stimulated to proliferate in low adherence tissue culture dishes and the resulting mammospheres exhibit activation of stem cell-related signaling pathways. Here we describe the process for generating and analyzing mammospheres under varying conditions.

Keywords: Breast cancer stem cell; Mammosphere; Tissue culture; Tumor microenvironment.

MeSH terms

  • Breast
  • Breast Neoplasms*
  • Cell Line, Tumor
  • Cell Proliferation
  • Female
  • Humans
  • Neoplastic Stem Cells
  • Receptors, Estrogen
  • Tumor Microenvironment

Substances

  • Receptors, Estrogen