Automated Culture Techniques for 3D Structures
Culturing cells in 3D provides a more in vivo-like environment, allowing cells to maintain high viability when cultured for extended time periods. To maintain the highest levels of viability within untreated cells and to ensure accurate evaluation of treatment-induced effects, media exchanges and re-dosing are necessary throughout the experiment, particularly those lasting days to weeks. Media exchanges with cell models that do not rely on adherence to labware can be daunting when relying on manual methods. Multichannel pipettes must remove and dispense media at an extremely slow rate, and care must be taken to keep pipette tips away from the actual spheroids to avoid accidentally damaging or removing the spheroids.
The MultiFlo™ FX with AMX (Automated Media Exchange) module provides an automated method for effectively performing media exchanges without disturbing unattached 3D spheroids in 96- and 384-well formats. The AMX system delivers more consistent results compared to manual maintenance of 3D cell structures (Figure x.) and when coupled with BioTek automation, the media exchange tool provides a walk away solution for long-term 3D experimental procedures (see below).
Brightfield images of an entire 96-well microplate after one (left image); and three (right image) media exchange cycles.
Media exchanges were performed manually in all odd columns, and automated using the MultiFlo FX equipped with the
AMX Automated Media Exchange module in all even columns.