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We constructed a multichannel perfusion culture system. Using this device, we developed a perfusion device to detect six samples at the same time and demonstrated the response to dexamethasone of the circadian-related promoter activity in Rat1 fibroblast cells. We could detect the sequential phase shifts of the circadian peaks that are dependent on the timing of the drug treatments. We also demonstrate...
Bioluminescence reporter proteins have been widely used in the development of tools for monitoring biological events in living cells. In this study, we describe the development of a reporter system with secreted Cypridina noctiluca luciferase (CLuc) for a pharmacological assay that is based on targeted promoter activity. A model cell line was established with Rat-1 fibroblasts expressing CLuc driven...
The fruiting body of Polysphondylium pallidum is composed of whorls of branches along the axis of a central stalk. In the course of fruiting body formation, the interval between neighboring whorls, and the number and the spacing of branches in a whorl are highly regulated. In this study, using the REMI (restriction-enzyme-mediated integration) insertional mutagenesis method, we obtained a mutant (strain...
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