4.3 Article

Brain-derived neurotrophic factor regulates early postnatal developmental cell death of dopamine neurons of the substantia nigra in vivo

期刊

MOLECULAR AND CELLULAR NEUROSCIENCE
卷 41, 期 4, 页码 440-447

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.mcn.2009.04.009

关键词

-

资金

  1. Parkinson's Disease Foundation
  2. [NS26836]
  3. [NS38370]

向作者/读者索取更多资源

Brain-derived neurotrophic factor (BDNF) was the first purified molecule identified to directly support the development of mesencephalic dopamine neurons. However, its physiologic role has remained unknown. Based on patterns of expression, it is unlikely to serve as a target-derived neurotrophic factor, but it may instead act locally in the mesencephalon, either released by afferent projections, or in autocrine fashion. To assess a possible local role, we blocked BDNF signaling in the substantia nigra (SN) of postnatal rats by injection of either neutralizing antibodies or a peptide antagonist. These treatments increased the magnitude of developmental cell death in the SN, indicating that endogenous local BDNF does play a regulatory role. However, we also find that elimination of BDNF in brain throughout postnatal development in BDNFfl/fl: Nestin-Cre mice has no effect on the adult number of SN dopamine neurons. We postulate that other forms of trophic support may compensate for the elimination of BDNF during early development. Although the number of SN dopamine neurons is unchanged, their organization is disrupted. We conclude that BDNF plays a physiologic role in the postnatal development of SN dopamine neurons. (c) 2009 Elsevier Inc. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据