Article
A Wnt7b-dependent pathway regulates the orientation of epithelial cell division and establishes the cortico-medullary axis of the mammalian kidney.
Development (Cambridge, England) - 1 Jan 2009
Yu Jing, Carroll Thomas J, Rajagopal Jay, Kobayashi Akio, Ren Qun, McMahon Andrew P
Abstract excerpt
The mammalian kidney is organized into a cortex where primary filtration occurs, and a medullary region composed of elongated tubular epithelia where urine is concentrated. We show that the cortico-medullary axis of kidney organization and function is regulated by Wnt7b signaling. The future collecting duct network specifically expresses Wnt7b. In the absence of Wnt7b, cortical epithelial development is normal...
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