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莱什马尼亚大端粒酶RNA淘汰:从改变的细胞增殖到降低的寄生虫感染力

Beatriz Cristina Dias de Oliveira¹, Mark Ewusi Shiburah², Luiz Henrique Castro Assis¹

¹Department of Chemical and Biological Sciences, Biosciences Institute, São Paulo State University (UNESP), Botucatu, Sao Paulo, Brazil.

International journal of biological macromolecules

|September 1, 2024

概括

从Leishmania主要寄生虫中删除端粒酶RNA (LeishTER) 会破坏它们的生长,DNA完整性和传染性. 这项研究确定了LeishTER作为治疗莱什曼病的潜在药物标.

科学领域:

寄生虫学的寄生虫学
分子生物学分子生物学
遗传学遗传学是一个

背景情况:

莱什马尼亚主要原因是莱什马尼亚病,这是一种被忽视的热带疾病,没有有效的治疗方法.
端粒酶RNA (TER) 在真核生物中对端粒维护至关重要.
在Leishmania寄生虫中LeishTER的作用在很大程度上仍然未被描述.

研究的目的:

为了研究Leishmania major.中的LeishTER删除的生物学后果.
评估LeishTER作为针对莱什曼病的治疗点的潜力.

主要方法:

基因编辑以创建LeishTER淘汰赛 (LmTER-/-) 大型莱什马尼亚.
对细胞生长,细胞周期,端粒长度和DNA损伤标记物的分析.
评估自信号,线粒体完整性和传染性.

主要成果:

莱希特删除导致生长缺陷,细胞循环停止,端粒缩短和DNA损伤增加 (γH2A酸化).
在LmTER-/-细胞中观察到线粒体变化和亲生存自.
虽然发生了元循环转化,但传染性显著降低.

结论:

莱什特对莱什马尼亚主要平衡至关重要,影响寄生虫生长,DNA稳定性和传染性.
TER是开发新型抗莱什曼治疗的有希望的药物标.

关键词:

改变了细胞增殖的变化降低了感染能力的能力.莱什曼尼亚种类 (Leishmania spp.) 是一种在TERA上调调节.端粒酶RNA淘汰和过度表达端粒缩短的原因是

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