Epithelial Morphogenesis

In addition to static aspects of epithelial architecture, we are interested in how epithelial cells and sheets reorganize themselves to drive the morphogenetic outcomes that shape organs and organisms. The follicle cell epithelium of the adult Drosophila ovary is a rich system for such studies. Follicle cells undergo numerous morphogenetic behaviors, including transitions between squamous, cuboidal, and columnar morphologies, cellular rearrangements, and migrations; these changes during development determine the final form and function of the mature egg. We are using cell biological and imaging approaches in conjunction with forward genetic screening to understand the morphogenetic processes that shape this simple organ as a general model for understanding the processes and forces that govern epithelial morphogenesis.



  • Click HERE to see confocal time lapse movies of follicle rotation from Haigo and Bilder (2011)

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    Directed mosaic production of mutant follicle cells (lacking GFP) in otherwise WT egg chambers.
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    Directed mosaic production of mutant follicle cells (lacking GFP) in otherwise WT egg chambers.
    Morphometric features determined for follicle cells during ovarian development.
    Red lines highlight follicle cell epithelium, showing changes in cell and tissue shape during ovarian development.
    During a subset of stages of oogenesis, developing follicles elongate along their A-P axis.
    Cell shape changes in anterior follicle epithelial cells (red nuclei) during stages 9-10 of oogenesis.
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    Current Research Interests


    Research
    Introduction


    Regulation of
    Epithelial Polarity


    Growth Control
    and Tumor Suppression