Abstract:
:Traditional drug discovery involves the screening of lead compounds from a chemical library by using cell-based high throughput screening (HTS) procedures. This has created a demand for the development of cell-based microarray chips for HTS of compounds. Although several cell-based microarray devices and procedures for screening of chemical libraries have been reported, each has limitations in terms of simplicity, speed, and cost. Here, we sought to make a simple method for producing multiple copies of microarray chips for the controlled release of small molecules during cell-based screening. Arrays of polytetrafluoroethylene microchannels were set in poly(dimethylsiloxane) and were formed in a metal mold. Subsequently, a biodegradable polymer, PLGAs, with chemical compounds was injected into each channel, and the array was sliced perpendicular to the channels to create multiple copies of the microarray chip. After seeding the cells on the microarray chip, we were able to successfully control the diffusion of small molecules and locally introduce the compounds into cells. The described method enables the production of multiple copies of the chip by using an easy, rapid, and inexpensive array fabrication without any specialized devices. Moreover, screening using the microarray chip minimizes the consumption of cells and chemicals. Both the biodegradable material and compound injected into each channel can be individually tuned for optimized performance. Therefore, we expect that this method will be useful for developing cell-based HTS assays for small chemical compounds to find drug candidates.
journal_name
Biofabricationjournal_title
Biofabricationauthors
Fujita S,Onuki-Nagasaki R,Ikuta K,Hara Ydoi
10.1088/1758-5090/9/1/011001subject
Has Abstractpub_date
2016-12-05 00:00:00pages
011001issue
1eissn
1758-5082issn
1758-5090journal_volume
9pub_type
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