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通过编码一种新型蛋白质,CircMIB2疗法可以有效地治疗致病性感染

Weiwei Zheng¹, Linchao Wang¹, Shang Geng¹

¹Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.

Cell death & disease

|August 31, 2023

概括

循环RNA (circRNA) 为RNA疗法提供了一个稳定的替代方案. 研究人员在鱼类中发现了circMIB2,它转化为MIB2-134aa,增强先天免疫力,治疗斑马鱼的细菌感染.

科学领域:

分子生物学分子生物学
免疫学免疫学免疫学
生物技术是生物技术.

背景情况:

使者RNA (mRNA) 疗法,以COVID-19疫苗为例,由于mRNA的不稳定性而面临挑战,需要进行广泛的修改.
循环RNA (circRNA) 呈现出具有蛋白质编码潜力的稳定RNA结构,为基于RNA的治疗提供了一个有前途的替代方案.

研究的目的:

为了研究一种新型的circRNA,circMIB2,它来自于低脊椎动物鱼的MIB2基因.
探索circMIB2的蛋白质编码能力及其在先天免疫和疾病治疗中的作用.

主要方法:

鱼类中circMIB2的鉴定和特征.
通过m⁶A修改,分析circMIB2转化为MIB2-134aa.
研究MIB2-134aa与TRAF6的相互作用及其对先天免疫力的影响.
在斑马鱼中评估circMIB2治疗对Vibrio anguillarum感染的疗效.

主要成果:

一个新的circRNA,circMIB2,被确定,通过m⁶A修改转化为MIB2-134aa.
MIB2-134aa使用对宿主MIB2蛋白质同源的域准TRAF6,调节先天免疫反应.
MIB2-134aa显著抑制其宿主基因调解的TRAF6的降解.
在斑马鱼中,circMIB2疗法显著抑制了Vibrio anguillarum殖民的发生.

结论:

circMIB2代表了一个稳定的,蛋白质编码的circRNA,在天生的免疫力中发挥作用.
circMIB2-134aa调节了TRAF6介导的免疫反应.
使用circMIB2的circRNA疗法显示出治疗细菌鱼类疾病的潜力,提供了一种新的治疗策略.

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