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Modulating chemotaxis of lung cancer cells by using electric fields in a microfluidic device.


ABSTRACT: We employed direct-current electric fields (dcEFs) to modulate the chemotaxis of lung cancer cells in a microfluidic cell culture device that incorporates both stable concentration gradients and dcEFs. We found that the chemotaxis induced by a 0.5 μM/mm concentration gradient of epidermal growth factor can be nearly compensated by a 360 mV/mm dcEF. When the effect of chemical stimulation was balanced by the electrical drive, the cells migrated randomly, and the path lengths were largely reduced. We also demonstrated electrically modulated chemotaxis of two types of lung cancer cells with opposite directions of electrotaxis in this device.

SUBMITTER: Kao YC 

PROVIDER: S-EPMC3976467 | biostudies-other | 2014 Mar

REPOSITORIES: biostudies-other

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