在自闭症谱系障碍中SNAP-25的作用 开始模式
Elisabetta Bolognesi1, Franca Rosa Guerini1, Alessandra Carta2
1Laboratory of Molecular Medicine and Biotechnology, IRCCS Fondazione Don Carlo Gnocchi, Via Capecelatro 66, 20148 Milan, Italy.
International journal of molecular sciences
|September 28, 2023
概括
在SNAP-25基因的遗传变异区分早期发病的自闭症谱系障碍 (EO-ASD) 和回归发病的ASD (RO-ASD). 特定的SNAP-25等位基因可以作为不同ASD亚型的生物标志物,有助于定制治疗.
科学领域:
- 神经遗传学 神经遗传学
- 发育神经科学的发展神经科学.
- 自闭症谱系障碍 (ASD) 研究研究
背景情况:
- 自闭症谱系障碍 (ASD) 呈现出各种发病模式,包括早期发病的ASD (EO-ASD) 和回归发病的ASD (RO-ASD),回归的神经生物学基础仍在争论中.
- 25kDa的突触体相关蛋白 (SNAP-25) 基因对突触功能至关重要,并与ASD病变产生有关.
研究的目的:
- 研究SNAP-25基因中单核酸多态 (SNPs) 与明显的ASD发病模式 (EO-ASD与RO-ASD) 的关联.
- 探索SNAP-25SNP作为诊断生物标志物的潜力,以区分ASD亚型.
主要方法:
- 分析了四个SNAP-25SNP (rs363050,rs363039,rs363043,rs1051312) 在69名EO-ASD儿童和58名RO-ASD儿童的队列中,与健康对照 (HC) 相比.
- 进行了基因型鉴定,以确定研究组中每个SNP的等位基因和基因型频率.
主要成果:
- 与RO-ASD和HC相比,在EO-ASD患者中,rs363039G等位基因和GG基因型的发生率明显高于EO-ASD患者.
- 相反,rs1051312 T等位基因和TT基因型在RO-ASD个体中比EO-ASD和HC中更频繁.
- SNP rs1051312,位于3' UTR,是一个microRNA目标,表明在RO-ASD中具有潜在的表观遗传作用.
结论:
- 特定的SNAP-25等位基因/基因型 (rs363039和rs1051312) 有效地区分EO-ASD和RO-ASD.
- 这些发现表明SNAP-25 SNP可以作为ASD亚型的诊断生物标志物.
- 了解这些遗传差异可能会揭示潜在的生物机制,为针对ASD的定制治疗和康复策略铺平道路.
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