A multiparametric anti-aging CRISPR screen uncovers a role for BAF in protein translation

A multiparametric anti-aging CRISPR screen uncovers a role for BAF in protein translation
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多参数抗衰老 CRISPR 筛选揭示了 BAF 在蛋白质翻译中的作用

DOI:
10.1101/2022.10.07.509469
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发表时间:
2022
期刊:
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影响因子:
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通讯作者:
Breusegem S
Breusegem S
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文献类型:
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作者:
Breusegem S

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早衰症是一种非常罕见的、无法治愈的早衰症,它重现了大多数衰老特征。在这里,我们报告了第一个全基因组,多参数CRISPR抗衰老筛选,确定了43个新基因,可以逆转早衰症的多种衰老表型。筛选在来自Nestor-Guillermo早衰综合征(NGPS)患者的成纤维细胞中进行,这些患者携带自身整合障碍因子(BAF A12 T)中的纯合p.Ala12Thr突变。这些命中物富集了参与蛋白质翻译、蛋白质和RNA转运以及破骨细胞形成的基因。我们进一步证实,BAF A12 T驱动蛋白质翻译和翻译错误增加,这可能直接导致患者的过早衰老。这项工作突出了多参数全基因组合成救援筛选的力量,以确定新的抗衰老基因,并揭示背后的新的生物学与早衰症相关的细胞功能障碍。一句话总结一个全基因组多参数筛选在早衰症确定新的途径,可以逆转细胞衰老表型。
Progeria syndromes are very rare, incurable premature aging conditions recapitulating most aging features. Here, we report the first whole genome, multiparametric CRISPR anti-aging screen, identifying 43 new genes that can reverse multiple aging phenotypes in progeria. The screen was implemented in fibroblasts from Néstor- Guillermo Progeria Syndrome (NGPS) patients, carrying a homozygous p.Ala12Thr mutation in barrier-to-autointegration factor (BAF A12T). The hits were enriched for genes involved in protein translation, protein and RNA transport and osteoclast formation. We further confirmed that BAF A12T drives increased protein translation and translational errors that could directly contribute to premature aging in patients. This work has highlighted the power of multiparametric whole genome synthetic rescue screens to identify new anti-aging genes and uncover novel biology behind progeria-associated cellular dysfunction.One-Sentence SummaryA whole genome multiparametric screen in progeria identifies new pathways that can reverse cellular aging phenotypes.
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