| 1 | RNA modifications:importance in immune cell biology and related diseases显示文摘RNA modifications have become hot topics recently.By influencing RNA processes,including generation,transportation,function,and metabolization,they act as critical regulators of cell biology.The immune cell abnormality in human diseases is also a research focus and progressing rapidly these years.Studies have demonstrated that RNA modifications participate in the multiple biological processes of immune cells,including development,differentiation,activation,migration,and polarization,thereby modulating the immune responses and are involved in some immune related diseases.In this review,we present existing knowledge of the biological functions and underlying mechanisms of RNA modifications,including N6-methyladenosine(m^(6)A),5-methylcytosine(m^(5)C),N1-methyladenosine(m1 A),N7-methylguanosine(m^(7)G),N4-acetylcytosine(ac^(4)C),pseudouridine(Ψ),uridylation,and adenosine-to-inosine(A-to-I)RNA editing,and summarize their critical roles in immune cell biology.Via regulating the biological processes of immune cells,RNA modifications can participate in the pathogenesis of immune related diseases,such as cancers,infection,inflammatory and autoimmune diseases.We further highlight the challenges and future directions based on the existing knowledge.All in all,this review will provide helpful knowledge as well as novel ideas for the researchers in this area. | Lian Cui Rui Ma Jiangluyi Cai Chunyuan Guo Zeyu Chen Lingling Yao Yuanyuan Wang Rui Fan Xin Wang Yuling Shi | 2022 | Signal Transduction and Targeted Therapy2022，7，10： | 2 |
| 2 | RNA结合蛋白Aly/REF输出因子通过上调Yes相关蛋白表达促进胃癌细胞的增殖和迁移显示文摘胃癌是一种常见的发病率高、起病隐匿、侵袭性强的消化道恶性肿瘤,其发病机制错综复杂。RNA结合蛋白Aly/REF输出因子(RNAbinding protein Aly/REF export factor, ALYREF)作为一种RNA胞嘧啶的5-甲基化修饰(m~5C)后的结合蛋白质,在调控RNA出核及稳定其表达的过程中具有关键作用;Yes相关蛋白(yes-associated protein, YAP)作为Hippo-YAP信号通路中的关键分子,调控各种恶性肿瘤的生长和转移。本文旨在探讨ALYREF与YAP在促进胃癌细胞增殖和迁移中是否存在相关性,并初步探索这两者之间的作用机制。本文在胃癌细胞AGS和MKN-45中运用RT-PCR和Western印迹方法检测相关基因表达;CCK8试验检测细胞增殖;划痕试验和Trans-well试验分别检测细胞迁移和侵袭。结果显示,过表达ALYREF后YAP的表达增加(P<0.05),并且促进细胞的增殖、迁移和上皮细胞-间充质转化(epithelial-mesenchymal transition, EMT)(P<0.05);靶向敲低YAP,细胞的增殖、迁移和EMT能力显著抑制(P<0.05);过表达ALYREF且靶向敲除YAP与单独过表达ALYREF相比,YAP的表达显著降低(P<0.05),且细胞的增殖、迁移和EMT能力同样得到抑制(P<0.05);靶向敲低ALYREF,细胞的增殖、克隆形成和侵袭能力显著抑制(P<0.01)。综上所述,ALYREF通过上调YAP表达进而促进胃癌细胞的增殖和迁移。 | 李睿 邵爽 孟玮 金丹 郭纪伟 | 2023 | 中国生物化学与分子生物学报2023，39，4： | 0 |
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