在TNFRSF10A位点内的lncRNA的失调激活了细胞死亡途径
Tadeusz J Kaczynski1,2, Nadine J Husami1,2,3, Elizabeth D Au2
1Research Service, VA Medical Center, Buffalo, NY, USA.
Cell death discovery
|July 13, 2023
概括
AC100861.1长非编码RNA (lncRNA) 独立于TNFRSF10A调节了死细胞和炎症通路. 这种IncRNA会在压力下影响细胞死亡,为疾病机制提供了洞察力.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- TNFRSF10A (瘤亡因子受体超级家族10A成员) 是细胞表面受体,对亡,亡和炎症至关重要.
- TNFRSF10A的失调与疾病发展有关,但相邻的AC100861.1长非编码RNA (lncRNA) 的功能在很大程度上是未知的.
- 基因组近距离表明,在死亡受体信号传递中,AC100861.1和TNFRSF10A之间存在潜在的功能关系.
研究的目的:
- 为了研究AC100861.1 lncRNA的功能.
- 确定其与TNFRSF10A.的关系.
- 阐明其在死亡受体信号传递,亡和炎症中的作用.
主要方法:
- 对TNFRSF10A和AC100861.1.1.两种基因被淘汰和过度表达的策略被采用.
- 细胞活力测定在正常和压力条件下 (图尼卡米辛) 进行.
- 分析了关键的亡,亡和炎症基因的转录和蛋白质水平. 用于转录本地化的是RNA光在位杂交 (RNA-FISH).
主要成果:
- 过度表达TNFRSF10A或AC100861.1增加了细胞死亡,特别是在细胞应激下.
- 只有在压力下,TNFRSF10A的淘汰会增加细胞死亡;AC100861.1的淘汰对细胞死亡没有影响.
- AC100861.1操纵显著改变了亡和炎症途径基因的表达,独立于TNFRSF10A水平.
- RNA-FISH显示,AC100861.1主要局部在细胞质中.
结论:
- AC100861.1 在调节死细胞和炎症信号通路方面发挥作用.
- 它的功能似乎与TNFRSF10A表达调制不同.
- AC100861.1的细胞质局部化支持其在这些途径的转录后调节中的作用.
- 这些发现提供了对一个鲜为人知的lncRNA的洞察,具有潜在的疾病影响.
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