Novel CDNF/MANF Family of Neurotrophic Factors

被引:167
作者
Lindholm, Paivi [1 ]
Saarma, Mart [1 ]
机构
[1] Univ Helsinki, Inst Biotechnol, Viikki Bioctr, Helsinki 00014, Finland
关键词
neurotrophic factors; receptors; dopamine neurons; Parkinson's disease; lipids; saposins; ARGININE-RICH PROTEIN; MIDBRAIN DOPAMINERGIC-NEURONS; DISEASE SUBSTANTIA-NIGRA; FIBROBLAST-GROWTH-FACTOR; CELL LINE; PARKINSONS-DISEASE; IN-VIVO; GDNF FAMILY; SAPOSIN-C; INTRAPUTAMENAL INFUSION;
D O I
10.1002/dneu.20760
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Current therapeutic interventions for neurodegenerative diseases alleviate only disease symptoms, while treatments that could stop or reverse actual degenerative processes are not available. Parkinson's disease (PD) is a movement disorder with characteristic degeneration of dopaminergic neurons in the midbrain. Few neurotrophic factors (Nil's) that promote survival, maintenance, and differentiation of affected brain neurons are considered as potential therapeutic agents for the treatment of neurodegenerative diseases. Thus, it is important to search and study new NTFs that could also be used in therapy. In this review, we discuss novel evolutionary conserved family of NTFs consisting of two members in the vertebrates, cerebral dopamine neurotrophic factor (CDNF) and mesencephalic astrocyte-derived neurotrophic factor (MANE). Invertebrates, including Drosophila and Caenorhabditis have a single protein homologous to vertebrate CDNF/MANF. Characteristic feature of these proteins is eight structurally conserved cysteine residues, which determine the protein fold. The crystal structure analysis revealed that CDNF and MANF consist of two domains; an amino-terminal saposin-like domain that may interact with lipids or membranes, and a presumably unfolded carboxy-terminal domain that may protect cells against endoplasmic reticulum stress. CDNF and MANF protect midbrain dopaminergic neurons and restore motor function in 6-hydroxydopamine rat model of PD in vivo. In line, Drosophila MANF is needed for the maintenance of dopaminergic neurites and dopamine levels in the fly, suggesting that the function of CDNF/MANF proteins is evolutionary conserved. Future studies will reveal the receptors and mode of action of these novel factors, which are potential therapeutic proteins for the treatment of PD. (C) 2010 Wiley Periodicals, Inc. Develop Neurobiol 70: 360-371, 2010
引用
收藏
页码:360 / 371
页数:12
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