A rare natural lipid induces neuroglobin expression to prevent amyloid oligomers toxicity and retinal neurodegeneration.

A rare natural lipid induces neuroglobin expression to prevent amyloid oligomers toxicity and retinal neurodegeneration.
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一种罕见的天然脂质诱导神经红蛋白表达,以防止淀粉样蛋白低聚物毒性和视网膜神经变性。

DOI:
10.1111/acel.13645
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发表时间:
2022-07
期刊:
影响因子:
7.8
通讯作者:
--
中科院分区:
生物学1区
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--
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大多数神经退行性疾病,如阿尔茨海默病,都是与淀粉样寡聚体的毒性有关的蛋白质病。目前缺乏延缓或治愈这些疾病的治疗方法。利用发芽酵母,我们报道了天然脂质三碳酸诱导一氧化氮氧化还原酶Yhb1的表达,以防止老化过程中蛋白质聚集体的形成,并延长复制寿命。在哺乳动物中,十五烷基酚诱导Yhb1同源基因脑红蛋白的表达,以保护神经元免受淀粉样蛋白的毒性。十五烷基酚还挽救了视网膜变性小鼠模型的光感受器和视神经萎缩猕猴模型的视网膜神经节细胞。综上所述,我们认为,十五烷酸通过影响p体来诱导脑红蛋白的表达,并为蛋白质病和视网膜神经变性提供了一种潜在的治疗方法。天然脂质十五烷基元诱导Yhb1在萌芽酵母中的表达及其在哺乳动物中的同源脑红蛋白。Yhb1诱导可防止AGE诱导的蛋白质聚集体的形成,并延缓酵母中的衰老。脑红蛋白诱导可防止神经元中不同的淀粉样寡聚体的毒性以及化学或遗传诱导的动物视网膜变性。
Most neurodegenerative diseases such as Alzheimer's disease are proteinopathies linked to the toxicity of amyloid oligomers. Treatments to delay or cure these diseases are lacking. Using budding yeast, we report that the natural lipid tripentadecanoin induces expression of the nitric oxide oxidoreductase Yhb1 to prevent the formation of protein aggregates during aging and extends replicative lifespan. In mammals, tripentadecanoin induces expression of the Yhb1 orthologue, neuroglobin, to protect neurons against amyloid toxicity. Tripentadecanoin also rescues photoreceptors in a mouse model of retinal degeneration and retinal ganglion cells in a Rhesus monkey model of optic atrophy. Together, we propose that tripentadecanoin affects p‐bodies to induce neuroglobin expression and offers a potential treatment for proteinopathies and retinal neurodegeneration. The natural lipid tripentadecanoin induces the expression of Yhb1 in budding yeast and its orthologue Neuroglobin in mammals. Yhb1 induction prevents the formation of age‐induced protein aggregates and delays aging in yeast. Neuroglobin induction prevents the toxicity of diverse amyloid oligomers in neurons and chemically or genetically induced retinal degeneration in animals.
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