There is an Erratum (March 2005) associated with this News and Views.
STOP! In the name of positive selection
Michael D Cahalan
Michael D. Cahalan is in the Department of Physiology and Biophysics, University of California, Irvine, California 92697-4561, USA. mcahalan@uci.edu
Calcium signaling is essential during thymocyte development. It seems that calcium oscillations trigger thymocytes to become immotile, prolonging interactions with stromal cells that are critical for positive selection.
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