3-岩石相互作用和益菌功能:内基CKD风险等位基因的解决机制
Anand Reghuvaran1, Ashwani Kumar1, Qisheng Lin2
1Section of Nephrology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
bioRxiv : the preprint server for biology
|November 28, 2024
概括
这里是Shroom3的房间.
科学领域:
- 腎病學和分子生物學.
背景情况:
- 在Shroom3中,单核酸多态 (SNP) 与慢性病 (CKD) 有关.
- 施罗姆3调解了TGFβ1和Wnt/Ctnnb1通路之间的交叉,促进纤维化 (TIF).
- Shroom3具有性作用,据报道,它在蛋白尿症中起到有益的作用.
研究的目的:
- 识别特定的益菌性Shroom3动机.
- 调查Shroom3中介Rho-kinase (ROCK) 激活在益纤维细胞功能中的作用,特别是在高Shroom3表达者中.
- 测试假设Shroom3的ASD2域通过ROCK激活对其益纤维功能至关重要.
主要方法:
- 开发的转基因小鼠和具有诱导性过度表达野生类型 (WT-Sh3) 或ASD2-域删除Shroom3 (ASD2Δ-Sh3) 的细胞系.
- 在具有ASD2Δ-Sh3.3的HEK293T细胞中确认了ROCK结合和TGFβ1信号抑制.
- 在mIMCD和3T3细胞中评估了ROCK激活 (-MYPT1),亲纤维/炎症转录和纤维细胞增殖.
- 在小鼠中利用了尿路阻塞 (UUO) 和阿里斯托洛奇酸 (AAN) 模型.
- 在WT-Sh3和ASD2Δ-Sh3小鼠中分析了转录组和蛋白尿.
主要成果:
- ASD2Δ-Sh3过度表达抑制了ROCK激活,并减少了mIMCD细胞中的亲纤维/炎症标志物.
- ASD2Δ-Sh3过度表达减少了纤维细胞的增殖.
- 在AAN和UUO模型中,与ASD2Δ-Sh3.3相比,WT-Sh3过度表达加剧了损伤,血和纤维化.
- 在WT-Sh3小鼠中的转录组显示Rho-GTPase,TGFβ1和Wnt/CtnnB1信号的丰富.
- WT-Sh3小鼠患有白色素尿,而ASD2Δ-Sh3小鼠没有;突变Fyn结合基因诱导白色素尿.
结论:
- 在Shroom3的Rock-bindingASD2域对于在Shroom3过量的情况下调解纤维化至关重要.
- 这种机制与人类的CKD有关.
- Shroom3在病理学中表现出动机特异性的作用,ASD2域与纤维化有关,另一个动机与蛋白尿有关.
更多相关视频
09:37A Phenotyping Regimen for Genetically Modified Mice Used to Study Genes Implicated in Human Diseases of Aging
Published on: July 14, 2016
8.2K
09:13Author Spotlight: Identifying Compensatory Pathways in Malaria Parasites Containing Hypomorphic Allele of Essential Protein Kinases
Published on: November 22, 2024
1.3K
相关概念视频
Mismatch Repair
4.8K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
4.8K
Exon Recombination
3.6K
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...
Exon shuffling follows “splice frame rules.” Each exon...
3.6K
