Seattle, WA 98195
My lab studies the cytoskeleton of Giardia intestinalis. Giardia is an important parasite that affects a wide variety of animal hosts, including over 100 million (mostly impoverished) people each year. Treatment options are limited; therefore, the WHO has recognized giardiasis as a neglected disease. In addition to Giardia being a major parasite, this organism stands out as one of the most evolutionary divergent eukaryotes (from animals) that can be manipulated in the laboratory. While the majority of microtubule cytoskeleton components can be identified in the Giardia genome, none of the core set of homologous actin-binding proteins (e.g.: nucleators, motors, bundling, and severing proteins), can be found in Giardia. Yet, the Giardia actin cytoskeleton still has complex organization and is regulated by a single Rho family GTPase. Moreover, the Giardia actin cytoskeleton has a conserved role in cellular organization, trafficking, and cytokinesis (novel mechanism without contractile ring or midbody). Importantly the giardial actin cytoskeleton is both essential and highly divergent from that of humans; therefore, it represents an important potential target for treating this neglected disease and an opportunity to gain insight into evolution of the cytoskeleton.
Copyright © 2003-2013 Molecular & Cellular Biology Program, University of Washington
Fred Hutchison Cancer Research Center | University of Washington
Institute for Systems Biology | Seattle Biomed