Characterizing dopaminergic neuron vulnerability using genome-wide analysis.

Characterizing dopaminergic neuron vulnerability using genome-wide analysis.
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DOI:
10.1093/genetics/iyab081
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发表时间:
2021-08-09
期刊:
影响因子:
3.3
通讯作者:
Babcock DT
Babcock DT
中科院分区:
生物学2区
文献类型:
--
作者:
Davis J;Da Silva Santos C;Zavala NC;Gans N;Patracuolla D;Fehrenbach M;Babcock DT

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Using Drosophila, Davis et al. identify novel factors that render dopaminergic neurons vulnerable to degeneration. As dopaminergic neurons are selectively vulnerable in Parkinson’s Disease, these results provide insight into the development of potential therapeutic targets to protect these vulnerable neuronal populations. Parkinson’s disease (PD) is primarily characterized by the loss of dopaminergic (DA) neurons in the brain. However, little is known about why DA neurons are selectively vulnerable to PD. To identify genes that are associated with DA neuron loss, we screened through 201 wild-caught populations of Drosophila melanogaster as part of the Drosophila Genetic Reference Panel. Here, we identify the top-associated genes containing single-nucleotide polymorphisms that render DA neurons vulnerable. These genes were further analyzed by using mutant analysis and tissue-specific knockdown for functional validation. We found that this loss of DA neurons caused progressive locomotor dysfunction in mutants and gene knockdown analysis. The identification of genes associated with the progressive loss of DA neurons should help to uncover factors that render these neurons vulnerable in PD, and possibly develop strategies to make these neurons more resilient.
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