SOUSA, Kyle, Carlos VILLAESCUSA, Lukáš ČAJÁNEK, Jennifer ONDR, Goncalo CASTELO-BRANCO, Wytske HOFSTRA, Vítězslav BRYJA, Carina PALMBERG, Tomas BERGMAN, Brandon WAINWRIGHT, Richard LANG and Ernest ARENAS. Wnt2 Regulates Progenitor Proliferation in the Developing Ventral Midbrain. Journal of Biological Chemistry. Bethesda, USA: Amer. Soc. Biochem. Mol. Biol., 2010, vol. 285, No 10, p. 7246-7253. ISSN 0021-9258. Available from: https://dx.doi.org/10.1074/jbc.M109.079822.
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Basic information
Original name Wnt2 Regulates Progenitor Proliferation in the Developing Ventral Midbrain
Authors SOUSA, Kyle (840 United States of America), Carlos VILLAESCUSA (724 Spain), Lukáš ČAJÁNEK (203 Czech Republic, belonging to the institution), Jennifer ONDR (840 United States of America), Goncalo CASTELO-BRANCO (620 Portugal), Wytske HOFSTRA (528 Netherlands), Vítězslav BRYJA (203 Czech Republic, guarantor, belonging to the institution), Carina PALMBERG (752 Sweden), Tomas BERGMAN (752 Sweden), Brandon WAINWRIGHT (840 United States of America), Richard LANG (840 United States of America) and Ernest ARENAS (752 Sweden).
Edition Journal of Biological Chemistry, Bethesda, USA, Amer. Soc. Biochem. Mol. Biol. 2010, 0021-9258.
Other information
Original language English
Type of outcome Article in a journal
Field of Study Genetics and molecular biology
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 5.328
RIV identification code RIV/00216224:14310/10:00047424
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1074/jbc.M109.079822
UT WoS 000275415600037
Keywords in English Wnt2; dopaminergic neuron; ventral midbrain
Changed by Changed by: prof. Mgr. Vítězslav Bryja, Ph.D., učo 11088. Changed: 26/3/2012 16:24.
Abstract
Wnts are secreted, lipidated proteins that regulate multiple aspects of brain development, including dopaminergic neuron development. In this study, we perform the first purification and signaling analysis of Wnt2 and define the function of Wnt2 in ventral midbrain precursor cultures, as well as in Wnt2-null mice in vivo. We found that purified Wnt2 induces the phosphorylation of both Lrp5/6 and Dvl-2/3, and activates beta-catenin in SN4741 dopaminergic cells. Moreover, purified Wnt2 increases progenitor proliferation, and the number of dopaminergic neurons in ventral midbrain precursor cultures. In agreement with these findings, analysis of the ventral midbrain of developing Wnt2-null mice revealed a decrease in progenitor proliferation and neurogenesis that lead to a decrease in the number of postmitotic precursors and dopaminergic neurons. Collectively, our observations identify Wnt2 as a novel regulator of dopaminergic progenitors and dopaminergic neuron development.
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