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Journal article
Combinatorial hydrogels with biochemical gradients for screening 3D cellular microenvironments
Nature communications, v 9(1), pp 614-10
09 Feb 2018
PMID: 29426836
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
3D microenvironmental parameters control cell behavior, but can be challenging to investigate over a wide range of conditions. Here, a combinatorial hydrogel platform is developed that uses light-mediated thiol-norbornene chemistry to encapsulate cells within hydrogels with biochemical gradients made by spatially varied light exposure. Specifically, mesenchymal stem cells are photoencapsulated in norbornene-modified hyaluronic acid hydrogels functionalized with gradients (0-5 mM) of peptides that mimic cell-cell or cell-matrix interactions, either as single or orthogonal gradients. Chondrogenesis varied spatially in these hydrogels based on the local biochemical formulation, as indicated by Sox9 and aggrecan expression levels. From 100 combinations investigated, discrete hydrogels are formulated and early gene expression and long-term cartilage-specific matrix production are assayed and found to be consistent with screening predictions. This platform is a scalable, high-throughput technique that enables the screening of the effects of multiple biochemical signals on 3D cell behavior.
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Details
- Title
- Combinatorial hydrogels with biochemical gradients for screening 3D cellular microenvironments
- Creators
- Sebastián L Vega - University of PennsylvaniaMi Y Kwon - University of PennsylvaniaKwang Hoon Song - University of PennsylvaniaChao Wang - Drexel UniversityRobert L Mauck - University of PennsylvaniaLin Han - School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, 19104, USAJason A Burdick - University of Pennsylvania
- Publication Details
- Nature communications, v 9(1), pp 614-10
- Publisher
- Springer Nature
- Grant note
- R01 EB008722 / NIBIB NIH HHS T32 AR007132 / NIAMS NIH HHS
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000424641200013
- Scopus ID
- 2-s2.0-85047761782
- Other Identifier
- 991019169807304721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Multidisciplinary Sciences