NDLI: Thick-tissue bioreactor as a platform for long-term organotypic culture and drug delivery

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Thick-tissue bioreactor as a platform for long-term organotypic culture and drug delivery

Content Provider	PubMed Central
Author	Markov, Dmitry A. Lu, Jenny Q. Samson, Philip C. Wikswo, John P. Mccawley, Lisa J.
Abstract	We have developed a novel, portable, gravity-fed, microfluidics-based platform suitable for optical interrogation of long-term organotypic cell culture. This system is designed to provide convenient control of cell maintenance, nutrients, and experimental reagent delivery to tissue-like cell densities housed in a transparent, low-volume microenvironment. To demonstrate the ability of our Thick-Tissue Bioreactor (TTB) to provide stable, long-term maintenance of high-density cellular arrays, we observed the morphogenic growth of human mammary epithelial cell lines, MCF-10A and their invasive variants, cultured under three-dimensional (3D) conditions inside our system. Over the course of 21 days, these cells typically develop into hollow “mammospheres” if cultured in standard 3D Matrigel. This complex morphogenic process requires alterations in a variety of cellular functions, including degradation of extracellular matrix that is regulated by cell-produced matrix proteinases. For our “drug” delivery testing and validation experiments we have introduced proteinase inhibitors into the fluid supply system, and we observed both reduced proteinase activity and inhibited cellular morphogenesis. The size inhibition results correlated well with the overall proteinase activities of the tested cells.
Related Links	http://dx.doi.org/10.1039/c2lc40304h
File Format	PDF
ISSN	14730197
e-ISSN	14730189
Journal	Lab on a chip
Issue Number	21
Volume Number	12
Language	English
Publisher Date	2012-01-01
Access Restriction	Open
Subject Keyword	Biochemistry Bioengineering Chemistry(all) Biomedical Engineering Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Biochemistry Bioengineering Biomedical Engineering

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