A subscription to JoVE is required to view this content. Sign in or start your free trial.
Chapters
- 00:05Title
- 00:50Introduction
- 02:52Microfluidic Device Fabrication
- 05:45Formation of Uniform Tumor Spheroids using the Hanging Drop Method
- 07:04Introduction of Spheroids into the Microfluidic Device
- 09:18Introduction of Apoptosis-detecting Agent into the Microfluidic Device
- 10:50Introduction of Therapeutic Agents into the Microfluidic Device
- 11:59Time Lapse Microscopy and Estimation of Drug Diffusivity Coefficients
- 14:25Representative Results
- 15:30Concluding Remarks
We present the procedure for fabrication and operation of a microfluidic device that recreates heterogeneous tumor microenvironments in vitro. The variability in apoptosis within tumor tissue was quantified using fluorescent stains and the effective diffusion coefficient of the chemotherapeutic drug doxorubicin into tumor tissue was evaluated.
Tags
Microfluidic DeviceTumor MicroenvironmentIn VitroDrug DeliverySystemic ClearanceHeterogeneousVasculatureNutrientsViable CellsQuiescent CellsNecrotic CellsCancer DrugsPenetrationMonolayersIn Vitro ModelPDMSSoft LithographyMulticellular Tumor SpheroidsHanging Drop MethodRectangular ChambersContinuous Medium PerfusionLinear GradientsFluorescent StainsApoptosis VariabilityChemotherapeutic Drug DoxorubicinDiffusion CoefficientCell Lines
