Doyle James J, Parker J Alex
Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.
Metabolic Disorders and Complications, RI-MUHC, Montreal, McGill, Canada.
MicroPubl Biol. 2023 Dec 21;2023. doi: 10.17912/micropub.biology.000304. eCollection 2023.
Progranulin (PGRN) is a growth factor in which mutations are one of the leading causes of frontotemporal dementia (FTD), and has been implicated in an assortment of neurodegenerative diseases. Conversely, higher levels of the protein have shown potential as a general neuronal protective factor. While examining its neuroprotective applications on a broader scale would be unfeasible in mammalian models, we turned to the nematode to map the interactions of PGRN across multiple genetic models of neurodegenerative diseases. Our results indicate that while the overexpression of PGRN appears to be protective across all models tested, the loss of PGRN exacerbated the disease phenotypes of all but three of the models tested. Given the ease of genetic analysis in nematodes, we propose this model organism as an efficient tool to build a comprehensive map of PGRN's genetic interactions.
前颗粒蛋白(PGRN)是一种生长因子,其突变是额颞叶痴呆(FTD)的主要病因之一,并且与多种神经退行性疾病有关。相反,较高水平的该蛋白已显示出作为一般神经元保护因子的潜力。虽然在哺乳动物模型中更广泛地研究其神经保护应用是不可行的,但我们转向线虫来绘制PGRN在多种神经退行性疾病遗传模型中的相互作用图谱。我们的结果表明,虽然PGRN的过表达在所有测试模型中似乎都具有保护作用,但PGRN的缺失加剧了除三个测试模型外所有模型的疾病表型。鉴于线虫遗传分析的简便性,我们提出将这种模式生物作为构建PGRN遗传相互作用综合图谱的有效工具。