Ultrafast cell switching for recording cell surface transitions: new insights into epidermal growth factor receptor signalling.

Chiang, Ya-Yu; West, Jonathan · Lab Chip · 2013

basic_science · Level V

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Abstract

A pinched-flow deflection technology was developed for rapid single cell switching between biochemical microenvironments. Millisecond switching was used to stimulate and preserve epidermal growth factor receptor (EGFR) autophosphorylation transitions. Intramolecular phosphorylation initiates signal transduction, is silenced by phosphatase activity until EGFR dimerization enables intermolecular phosphorylation to initiate downstream signalling.

Medical subject headings