Abstract
Extracellular matrix (ECM)-based hydrogels can serve as scaffolds in reconstruction of physiologically relevant three-dimensional (3D) in vitro models. Biocompatible or integrated hydrogels can be used to modulate ECM properties such as stiffness and composition for studies of cell−ECM interactions and morphogenesis. To this end, we developed a new type of spatially modified collagen type 1 hydrogel by convective addition of collagen type 1 solution. The matrix displayed properties that were distinct from those of a collagen type 1 hydrogel and recapitulated the morphology and function of mammary epithelium in a 3D microfluidic platform. In this ECM, mammary epithelial cells secreted laminin and exhibited self-assembly into a basement membrane. Thus, this spatially modified ECM offers biophysical features that can facilitate the construction of mammary epithelium and, by extension, that of various other epithelial types. Additionally, our reconstructed mammary duct can be used as an in vitro model for the study of early-stage breast cancer.
| Original language | English |
|---|---|
| Pages (from-to) | 970-981 |
| Number of pages | 12 |
| Journal | NPG Asia Materials |
| Volume | 10 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2018 Oct 1 |
Bibliographical note
Funding Information:The authors thank Nak Won Choi from the Korea Institute of Science and Technology for technical assistance in preparing the TRITC-conjugated COL1. This work was supported by National Research Foundation of Korea grants funded by the Korean government to S.H.L. (No. 2013R1A1A2058789) and S.C. (NRF-2017R1A2B3007701 and 2014M3A7B4052193).
Publisher Copyright:
© 2018, The Author(s).
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
ASJC Scopus subject areas
- Modelling and Simulation
- General Materials Science
- Condensed Matter Physics
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