Watching micro-tissues grow, communicate and die

Today it is possible to test drugs or study complex biological mechanisms on three-dimensional micro-tissues that closely resemble parts of natural organs. In their research, Elise Aeby, Patrick M. Misun and Olivier Frey from the Bio-Engineering Lab of Andreas Hierlemann study micro-tissues of colon cancer in hanging hydrogel drops on a micro-fluidic chip, monitoring tissues’ growth and cell death, and human liver tissues that were exposed to cytochalasin D, a cell-invading toxin.

BEL_Hydrogel_Chip
Picture of the microfluidic hydrogel hanging-drop chip. The wells are filled with hydrogel and glass beads. (Image courtesy: Bio-Engineering Laboratory / ETH Zurich)

The developed technique is promising as high-resolution time-lapse imaging provides detailed information on complex processes even down to single-cell level. The study was published on 22 May in Advanced Biosystems.

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