在冷解过程后,与胞相关的miRNAs与阿斯动物的霍尔斯坦公牛的功能和流量细胞计参数相关
Morteza Taravat1, Amirmahdi Roshanzamir2, Maryam Rahbar1
1Department of Clinical Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
Biopreservation and biobanking
|April 30, 2024
概括
微RNAs调节精子的功能. 这项研究确定了与不孕症的原因 - - 精子精症 (AS) 相关的特定微RNA,以及它们与精子运动性和亡的关联.
科学领域:
- 生殖生物学 生殖生物学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 精子细胞的细胞过程,如亡和运动,由微RNAs (miRNAs) 调节.
- 精子生育不良症 (AS),以精子运动性降低为特征,是男性不孕症的重要原因之一.
- 特定的miRNA和分子通路都与AS病变发生有关.
研究的目的:
- 为了研究与亡相关的miRNAs在霍尔斯坦公牛的精 (AS) 中的作用.
- 为了确定与精子功能和AS中的亡相关的特定miRNAs与normozoospermia (NS) 相比.
主要方法:
- 从霍尔斯坦牛群中采集了患有常态精 (NS) 和精精 (AS) 的精液样本,并进行了冷保存.
- 评估了精子运动参数,等离子体膜完整性,体完整性,DNA碎片化和亡状态.
- 使用生物信息学方法分析了与亡相关的特定miRNAs (miR-2114,miR-296-3p,miR-455-3p和miR345-3p) 的表达水平.
主要成果:
- 与AS组相比,NS组的功能和流量细胞计参数在NS组显著改善.
- 在NS组中,miR-455-3pp和miR-2412的上调,而miR-345-3p相对于AS组的下调.
- 在AS组中,miR-296-39,miR-2412,miR-345-3p水平与膜完整性,DNA碎片化和亡状态有很强的相关性.
结论:
- 通过生物信息学分析识别的精选miRNA与AS和NS样本中的功能和流动细胞计量指标有很大联系.
- 这些miRNAs可能在调节亡和精中的运动性方面发挥关键作用.
- 这些发现有助于理解AS背后的分子机制,并为生育干预提供潜在的目标.
相关概念视频
MicroRNAs
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...
Regulation of Expression Occurs at Multiple Steps
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
MicroRNAs
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...


