m6ARNA甲基化通过向双醇A诱导的莱迪格细胞功能障碍中的Map1lc3b来调节自
Zhihong Chen1, Zixin Chen2, Jiahui Mo1
1Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
Journal of hazardous materials
|December 11, 2024
概括
双甲 (BPA) 暴露会损害莱迪格细胞和的产生. 准N6 - 甲基氨酸 (m6A) RNA甲基化可能提供一种治疗策略,以对抗BPA诱导的男性生殖毒性.
科学领域:
- 生殖生物学 生殖生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 环境健康 环境健康
背景情况:
- 双A (BPA) 是一种与男性不孕症相关的环境毒素.
- N6 - 甲基氨酸 (m6A) RNA甲基化是一种表观遗传机制,可能与环境暴露反应有关.
- m6A对BPA对丸莱迪格细胞 (LCs) 和生产的影响的具体作用尚不清楚.
研究的目的:
- 研究m6ARNA甲基化的作用,以调解BPA暴露对丸LC的影响.
- 确定参与BPA诱导毒性的关键m6A调节器.
- 探索下游分子标和受m6A失调影响的途径,在暴露于BPA的LC中.
主要方法:
- 在丸LC中BPA暴露的体内和体外模型.
- 测量的生物合成和m6A水平.
- 分析了m6A"写字器" (METTL3) 和"消光器" (ALKBH5) 的表达和活动.
- 转录组和MeRIP测序用于识别m6A修饰的目标.
- 评估与自相关的过程.
主要成果:
- 暴露于BPA显著降低了的生物合成,并增加了LC中的m6A修饰.
- 在BPA暴露期间,METTL3和ALKBH5被确定为m6A水平的关键调节者.
- 降低m6A水平显示出缓解BPA诱导的LC损伤的潜力.
- 由BPA诱导的m6A上调特别针对Map1lc3bmRNA,抑制自.
结论:
- m6ARNA甲基化在调解丸LC中BPA诱导的生殖毒性方面发挥着关键作用.
- 在这个过程中,METTL3和ALKBH5是关键的调节者.
- 准m6ARNA甲基化通路为BPA诱导的男性生殖毒性提供了潜在的治疗策略,并提供了对男性生殖健康表观遗传调节的见解.
相关概念视频
Covalently Linked Protein Regulators
6.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.8K
Epigenetic Regulation
30.9K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
30.9K
Regulation of Expression at Multiple Steps
869
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
869
Phase II Reactions: Methylation Reactions
134
Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
134
RNA Stability
33.3K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
33.3K
RNA Editing
8.9K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
8.9K


