Summary
Published in PLOS ONE (2015), this peer-reviewed study used 3D Petri Dish® micro-molds to form scaffold-free 3D microtissues. Full citation: Vantangoli, Marguerite M., et al. MCF-7 Human Breast Cancer Cells Form Differentiated Microtissues in Scaffold-Free Hydrogels
MCF-7 Human Breast Cancer Cells Form Differentiated Microtissues in Scaffold-Free Hydrogels
Research Overview
When grown in 3D using scaffold-free agarose hydrogels, MCF-7 human breast cancer cells self-organize into directionally oriented microtissues containing a luminal space — reminiscent of the in vivo structure of the mammary gland, which 2D monolayers never reproduce.
Compared with 2D culture, the microtissues showed increased mRNA expression of the luminal epithelial markers keratin 8 and keratin 19, and decreased expression of the basal marker keratin 14 and mesenchymal marker vimentin. The 3D microtissues also remained responsive to estrogens, making them a physiologically closer model for hormone-responsive breast biology.
Key Discoveries
- MCF-7 cells self-organized into oriented microtissues with a luminal space, like mammary gland
- Luminal markers keratin 8 and 19 increased; basal keratin 14 and vimentin decreased versus 2D
- Microtissues remained estrogen-responsive, preserving hormone signaling for study
