Wnt receptors and Wnt inhibitors are expressed in gradients in the developing telencephalon

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Wnt receptors and Wnt inhibitors are expressed in gradients in the developing telencephalon

The caudomedial margin of the medial pallium, known as the cortical hem, expresses several Wnt genes that have been shown to be crucial for cortical development. We examined the expression of members of the Frizzled (mFz) family of Wnt receptors and the Secreted Frizzled Related Protein (SFRP) family of Wnt inhibitors during telencephalic development. We found that mFz-5 and mFz-8 are specifica...

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R-spondins are secreted Wnt signalling agonists, which regulate embryonic patterning and stem cell proliferation, but whose mechanism of action is poorly understood. Here we show that R-spondins bind to the orphan G-protein-coupled receptors LGR4 and LGR5 by their Furin domains. Gain- and loss-of-function experiments in mammalian cells and Xenopus embryos indicate that LGR4 and LGR5 promote R-s...

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ژورنال

عنوان ژورنال: Mechanisms of Development

سال: 2001

ISSN: 0925-4773

DOI: 10.1016/s0925-4773(01)00342-2