The regulation of cell shape and size is important for a wide variety of biological processes. A study conducted at University College London (see Picone et al., e1000542) reveals that microtubules (shown in green) impose unexpected limits on cell geometry, which enable cells to regulate their length. Since cells are the building blocks and architects of tissue morphogenesis, such intrinsically defined limits may be important for development and homeostasis in multicellular eukaryotes.
Image Credit: Remigio Picone, Centre for Mathematics and Physics in the Life Sciences and Experimental Biology (CoMPLEX), University College London
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