Seminars

16th Annual Fredrickson Lecture: 3D Hydrogels Emulate the Cellular Microenvironment in Models of Cancer
  • 1:25pm Sept. 28, 2017
  • B-75 Amundson Hall
  • Molly S. Shoichet
  • Department of Chemical Engineering & Applied Chemistry, Institute of Biomaterials & Biomedical Engineering
  • University of Toronto, Toronto, ON, Canada

With the goal of screening cells in an environment that mimics that of native tissue, we designed a hydrogel for 3D cell culture. With 3D cell culture, we gain an understanding of both cell invasion and cell viability, thereby providing insight that is inherently unavailable with traditional 2D cell culture. To achieve a suitable environment, we synthesize hyaluronan-based hydrogels because hyaluronan is often over-expressed in invasive tumours including those in the breast and lung. To facilitate cell invasion and remodelling of the matrix, the hydrogels are crosslinked with peptides that can be degraded by matrix metalloproteinases (MMPs) secreted by the cells. To enhance cell adhesion, the hydrogels are modified with proteins and/or peptides; to facilitate cell invasion, the hydrogels are modified with growth factor concentration gradients. Using these well-defined hyaluronan-based hydrogels, we investigate both breast cancer and lung cell invasion and their response to different therapeutic treatments.

Seminars are open to alumni, friends of the Department, and the general public.

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