A Wnt1-regulated genetic network controls the identity and fate of midbrain-dopaminergic progenitors in vivo

Author:

Prakash Nilima1,Brodski Claude2,Naserke Thorsten1,Puelles Eduardo3,Gogoi Robindra3,Hall Anita4,Panhuysen Markus1,Echevarria Diego5,Sussel Lori6,Weisenhorn Daniela M. Vogt1,Martinez Salvador5,Arenas Ernest4,Simeone Antonio378,Wurst Wolfgang1

Affiliation:

1. GSF-National Research Center for Environment and Health, Technical University Munich, Institute of Developmental Genetics, Ingolstaedter Landstrasse 1,85764 Munich/Neuherberg, Germany, and Max-Planck-Institute of Psychiatry,Kraepelinstrasse 2, 80804 Munich, Germany.

2. Ben-Gurion University of the Negev, Faculty of Health Sciences, Zlotowski Center for Neuroscience, Department of Morphology, Be'er Sheva 84105,Israel.

3. MRC Centre for Developmental Neurobiology, 4th floor, New Hunt's House, King's College London, Guy's Campus, London Bridge, London SE1 UL, UK.

4. Laboratory of Molecular Neurobiology, MBB, Karolinska Institute, 17177 Stockholm, Sweden.

5. Instituto de Neurociencias, Universidad Miguel Hernandez, San Juan, 03550 Alicante, Spain.

6. Barbara Davis Center, University of Colorado Health Science Center, 4200 E. 9th Avenue, Denver, CO 8020, USA.

7. CEINGE Biotecnologie Avanzate, Via Comunale Margherita 482, 80145 Naples,Italy.

8. Institute of Genetics and Biophysics `ABT', Via Guglielmo Marconi 12, 80125 Naples, Italy.

Abstract

Midbrain neurons synthesizing the neurotransmitter dopamine play a central role in the modulation of different brain functions and are associated with major neurological and psychiatric disorders. Despite the importance of these cells, the molecular mechanisms controlling their development are still poorly understood. The secreted glycoprotein Wnt1 is expressed in close vicinity to developing midbrain dopaminergic neurons. Here, we show that Wnt1 regulates the genetic network, including Otx2 and Nkx2-2, that is required for the establishment of the midbrain dopaminergic progenitor domain during embryonic development. In addition, Wnt1 is required for the terminal differentiation of midbrain dopaminergic neurons at later stages of embryogenesis. These results identify Wnt1 as a key molecule in the development of midbrain dopaminergic neurons in vivo. They also suggest the Wnt1-controlled signaling pathway as a promising target for new therapeutic strategies in the treatment of Parkinson's disease.

Publisher

The Company of Biologists

Subject

Developmental Biology,Molecular Biology

Reference54 articles.

1. Adams, K. A., Maida, J. M., Golden, J. A. and Riddle, R. D.(2000). The transcription factor Lmx1b maintains Wnt1 expression within the isthmic organizer. Development127,1857-1867.

2. Alberi, L., Sgado, P. and Simon, H. H. (2004). Engrailed genes are cell-autonomously required to prevent apoptosis in mesencephalic dopaminergic neurons. Development131,3229-3236.

3. Baek, S. H., Kioussi, C., Briata, P., Wang, D., Nguyen, H. D.,Ohgi, K. A., Glass, C. K., Wynshaw-Boris, A., Rose, D. W. and Rosenfeld, M. G. (2003). Regulated subset of G1 growth-control genes in response to derepression by the Wnt pathway. Proc. Natl. Acad. Sci. USA100,3245-3250.

4. Blum, M. (1998). A null mutation in TGF-αleads to a reduction in midbrain dopaminergic neurons in the substantia nigra. Nat. Neurosci.1,374-377.

5. Briscoe, J., Sussel, L., Serup, P., Hartigan-O'Connor, D.,Jessell, T. M., Rubenstein, J. L. and Ericson, J. (1999). Homeobox gene Nkx2.2 and specification of neuronal identity by graded Sonic hedgehog signalling. Nature398,622-627.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3