在雄性小鼠中,缺乏miR-29a/b1的表达会损害膀功能
Zunyi Wang1, Robert Spitz1, Chad Vezina2,3
1Department of Surgical Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA.
Disease models & mechanisms
|June 7, 2023
概括
微RNAs (miRNAs) 在膀功能中起着至关重要的作用. 膀中的miR-29水平降低会导致纤维化和严重的下尿路症状 (LUTS),表明治疗潜力.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 下尿道症状 (LUTS) 是常见的,通常涉及 incomplete 膀排空.
- 膀纤维化与LUTS的发病有关,但其原因尚未完全理解.
- 微RNAs (miRNAs) 调节基因表达;miR-29家族以其抗纤维性质而闻名.
研究的目的:
- 为了研究miR-29在膀功能和恒温的作用.
- 为了确定miR-29缺乏对膀纤维化和排泄动态的影响.
主要方法:
- 在缺乏miR-29a和miR-29b-1 (miR-29a/b1) 的雄性小鼠中,膀功能的表征.
- 评估排泄参数,包括尿,排泄时间和流量.
- 膀组织中的原和弹性素水平的组织学分析.
主要成果:
- 缺乏miR-29a/b1的小鼠表现出严重的尿和不规则的排尿.
- 在缺乏miR-29a/b1的小鼠中,空气的持续时间增加,流量减少.
- 在这些小鼠的膀中观察到原蛋白和弹性质沉积的增加.
结论:
- miR-29对于维持正常的膀功能和恒温是必不可少的.
- 失去miR-29会导致膀纤维化和排泄障碍,导致LUTS.
- miR-29代表了与膀纤维化相关的LUTS治疗的潜在治疗标.
相关概念视频
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...