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在Miichthysmiiuyuy中的Ythdc2基因的三个替代拼接异型的识别和功能调节

Tongtong Zhu¹, Wenxin Li¹, Xiangxiang Zhu¹

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

Developmental and comparative immunology

|March 6, 2025

概括

这项研究确定了Miichthys miiuy中的三个Ythdc2基因替代拼接异型,揭示了在LPS刺激下差异化的YTH域存在和改变的表达. 这些异构体可能通过抑制炎症途径来调节先天免疫力.

科学领域:

分子生物学分子生物学
免疫学免疫学免疫学
遗传学是一个遗传学.

背景情况:

替代拼接从单个基因生成多样化的mRNA转录,从而产生具有多样结构和功能的蛋白质.
Ythdc2基因是一种具有RNA螺旋酶活性的ATPase,通过其YTH域结合m6A修饰RNA,影响细胞过程.
Ythdc2与各种疾病有关,但其替代拼接及其在鱼类天生的免疫力中的作用仍未得到充分研究.

研究的目的:

在Miichthys miiuy.uy.中识别和描述Ythdc2基因的替代拼接异型.
为了研究这些异构体在脂聚糖化物 (LPS) 刺激后的表达模式.
探索Ythdc2异型在鱼类天生的免疫反应中的潜在调节作用.

主要方法:

在Miichthys miiuy.中使用分子技术识别Ythdc2替代拼接异型.
在每个已识别的异型中分析YTH域的存在或不存在.
在LPS治疗后对异形表达水平的定量评估.

主要成果:

三种Ythdc2替代拼接异型被确定并指定为Ythdc2-α,Ythdc2-β和Ythdc2-γ.
只有Ythdc2-α拥有YTH域,而Ythdc2-β和Ythdc2-γ缺乏这个域.
经过LPS刺激,所有三种Ythdc2异型的表达都增加了,这表明它们参与了免疫反应.

结论:

已识别的Ythdc2异型表现出明显的结构特征 (YTH域存在/不存在).
Ythdc2替代拼接对鱼类中的LPS等免疫刺激有反应.
这些异构体可能通过负面调节炎症因素和抑制NF-κB和IRF3信号通路来调节先天免疫.

关键词:

另一个替代拼接.天生的免疫系统天生的免疫系统.孩子们的孩子们的孩子.这就是Ythdc2 .

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