David Bilder

David Bilder

Title
Professor of Cell and Developmental Biology and Affiliate, Division of Genetics and Development
Department
Dept of Molecular & Cell Biology
Phone
(510) 642-8605
Fax
(510) 643-7448
Research Expertise and Interest
genetics, cancer, Drosophila, cell biology, cell polarity, tumor suppressor, epithelial architecture, polarity, and proliferation control
Research Description

Metazoan animals contain a bewildering variety of cell types whose forms are highly specialized for their functions. Yet how cells adopt these diverse shapes and structures remains mysterious. We are exploring this fundamental question of cell biology using a simple cell type — epithelia— in a genetically manipulable organism —Drosophila. We have adapted targeted mosaic techniques to screen, in vivo and in an unbiased manner, for genes required for cells to assume the highly regular epithelial organization. Cloning and characterization of these genes will reveal the mechanisms that regulate general cellular elements, such as the cytoskeleton and protein trafficking systems, in order to confer specific cellular architectures. Since epithelial organization is compromised during the progression of mammalian malignant tumors, we also study how polarity disruption in the fly can promote the acquisition of cancer-like cellular properties.

Current research focuses on three questions:

1). How is the polarity of epithelial cells regulated?

2). How can misregulation of epithelial polarity led to tumorigenesis?

3). What molecules control the shape, organization, and movement of epithelial tissues?

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