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Published January 24, 1997 | public
Journal Article

Vascular System Defects and Impaired Cell Chemokinesis as a Result of Gα_(13) Deficiency

Abstract

Heterotrimeric GTP-binding proteins (G proteins) participate in cellular signaling and regulate a variety of physiological processes. Disruption of the gene encoding the G protein subunit α_(13) (Gα_(13)) in mice impaired the ability of endothelial cells to develop into an organized vascular system, resulting in intrauterine death. In addition, Gα_(13) (−/−) embryonic fibroblasts showed greatly impaired migratory responses to thrombin. These results demonstrate that Gα_(13) participates in the regulation of cell movement in response to specific ligands, as well as in developmental angiogenesis.

Additional Information

© 1997 American Association for the Advancement of Science. Received 9 September 1996; accepted 2 December 1996. We thank J. Edens, Y.-H. Hu, and the La Jolla Cancer Research Foundation for technical assistance; T. Gridley for ES cell line CJ7; and A. Aragay, S. Pease, H. Wang, T. Wieland, and J. T. Yang for helpful suggestions. Supported by NIH grants GM 34236 and AG 12288 (M.I.S.). S.O. was a recipient of a fellowship from the Deutsche Forschungsgemeinschaft and the Guenther Foundation.

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023