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A microfluidic coculture system for cell-cell interaction study

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3 Author(s)
Cheng-Wey Wei ; Res. Center for Appl. Sci., Acad. Sinica, Taipei, Taiwan ; Tai-Horng Young ; Ji-Yen Cheng

A novel microfluidic coculture system was developed for more accurately modelling the interaction of macrophages and osteoblasts. The microfluidic coculture chip was fabricated by CO2 laser direct-writing on poly(methyl methacrylate) (PIMMA) and was designed to separate two cell types by a microchannel, while permitting cellular media to transfer. The released inflammatory cytokines (ex: IL-Iβ, TNF-α activated in upstream macrophages flow through a microfluidic system and generate linear concentration gradients in down-stream wells and induce down-stream osteoblasts to release prostaglandin E2 (PGE2), which is well-known as a bone resorption marker. Colorimetric MTT assay was used to examine the osteoblast viability. This system can be used to evaluate the cell-cell interaction while physically separate the interacting cells.

Published in:

Microtechnology in Medicine and Biology, 2005. 3rd IEEE/EMBS Special Topic Conference on

Date of Conference:

12-15 May 2005