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Professor Bianxiao Cui, Stanford University
Tuesday, March 01, 2022, 11:00am - 12:00pm

Bianxiao CuiMembrane curvature-mediated cell signaling at the nano-bio interface

Membrane curvature in the range of tens to hundreds of nanometers is involved in many essential cellular processes. At the cell-matrix interface, where the cells make physical contact with extracellular matrices, the membrane may be locally deformed by matrix topography or mechanical forces, and this deformation may actively regulate signal transmission through the interface. We explore nanofabrication to engineer vertical nanostructures protruding from a flat surface. These nanostructures deform the plasma membrane to precisely manipulate the location, degree, and sign (positive or negative) of the interface curvature in live cells. We found that these membrane curvatures significantly affects the distribution of curvature-sensitive proteins and modulate mechanotransduction in live cells. Our studies show a strong interplay between membrane curvature and mechanotransduction and reveal molecular mechanisms underlying the connection.

Hosted by Professor Zheng Shi

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