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publications

Deciphering the roles of Fat and Dachsous planar polarity and cell shape in arranging the apical microtubule network

Published in Molecular Biology of the Cell, 2023

In epithelial cells, planar polarisation of subapical microtubule networks is thought to be important for both breaking cellular symmetry and maintaining the resulting cellular polarity. Studies in the Drosophila pupal wing and other tissues have suggested two alternative mechanisms for specifying network polarity. On one hand mechanical strain and/or cell shape have been implicated as key determinants, on the other the Fat-Dachsous planar polarity pathway has been suggested to be the primary polarising cue. Using quantitative image analysis in the pupal wing, we reassess these models. We found that cell shape was a strong predictor of microtubule organisation in the developing wing epithelium. Conversely Fat-Dachsous polarity cues do not play any direct role in the organisation of the subapical microtubule network, despite being able to weakly recruit the microtubule minus-end capping protein Patronin to cell boundaries. We conclude that any effect of Fat-Dachsous on microtubule polarity is likely to be indirect, via their known ability to regulate cell shape.

Recommended citation: Ramirez Moreno, M; Hunton, R; Strutt, D and Bulgakova, NA (2023). " "Deciphering the roles of cell shape and Fat and Dachsous planar polarity in arranging the Drosophila apical microtubule network through quantitative image analysis"." Molecular Biology of the Cell. 1(1). [http://academicpages.github.io/files/paper1.pdf](https://www.molbiolcell.org/doi/10.1091/mbc.E22-09-0442?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed)

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teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

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Teaching experience 2

Workshop, University 1, Department, 2015

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