Ahringer, J. (2005). Playing ping pong with Pins: cortical and microtubule-induced polarity.  Cell 123(7): 1184--1186.

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Note

Cortical cell polarity controls mitotic spindle orientation in many cell types. In this issue of Cell, it is turned around and shown that the transfer of polarity information between the cortex and the spindle is not just one way. In Drosophila neuroblasts, the spindle also has polarizing activity on the cortex.