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阿波利波蛋白RPRC010099和RPRC015421在查加斯病载体Rhodnius prolixus的男性生育能力中的作用

Daniela Viana Dos Santos¹, Jordânia Costa Pinto², Luccas Gabriel Ferreira Malta³

¹Laboratório de Entomologia Médica, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Laboratório de Fisiologia de Insetos Hematófagos, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.

Journal of insect physiology

|March 5, 2026

概括

接吻虫Rhodnius prolixus中的两个雄性阿波利波蛋白显著影响女性的生育能力和产卵能力. 这些蛋白质在交配期间转移,可能携带eicosanoids来增强繁殖.

科学领域:

昆虫学昆虫学是一门学科.
生殖生物学生殖生物学
分子生物学分子生物学

背景情况:

查加斯病是由接吻虫Rhodnius prolixus传播的,这是一个关键的模型生物体.
影响女性生育力的男性生殖因素在昆虫中是已知的,但在R. prolixus中了解甚少.
脂蛋白对脂质运输至关重要,但它们在昆虫雄性生育中的作用在很大程度上尚未被探索.

研究的目的:

研究两个特定的阿波利波蛋白 (RPRC010099和RPRC015421) 在R. prolixus男性生育中的作用.
为了确定这些阿波利波蛋白是否作为eicosanoid激素的载体.
在这个矢量中阐明了男性-女性生殖相互作用背后的分子机制.

主要方法:

在男性R. prolixus中使用RNA干扰 (RNAi) 进行基因沉默.
在沉默后,交配的雌性产卵的量化.
分子对接和ELISA以评估与eicosanoids的蛋白质连接体相互作用.

主要成果:

沉默RPRC010099减少了女性卵子数量约60%;沉默RPRC015421减少了约20%.
在交配期间,蛋白质从雄性转移到雌性.
这两种阿波利波蛋白都对诸如前列腺素E2.2之类的eicosanoids具有很高的结合亲和力.

结论:

在R. prolixus中,RPRC010099和RPRC015421是男性生育的重要因素,促进了女性的卵置.
这些阿波利波蛋白可能作为eicosanoid载体起作用,调解生殖信号.
这项研究揭示了阿波利波蛋白的新生殖功能,并促进了对昆虫生殖相互作用的理解.

关键词:

这是一种Apolipoprotein蛋白质.埃科萨诺酸是什么? 埃科萨诺酸是什么?生育能力生育能力生育能力生殖生殖的繁殖罗德尼乌斯 (Rhodniusprolixus) 是一个多重的地区.

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