Results 281 to 290 of about 807,500 (308)

The Nuclear Localization of ACLY Guards Early Embryo Development Through Recruiting P300 and HAT1 to Promote Histone Acetylation and Transcription

Advanced Science, EarlyView.
ACLY is vital for early embryo development. IGF‐1 activates AKT to phosphorylate ACLY, driving its nuclear localization and recruitment of HATs (P300/HAT1), boosting acetyl‐CoA production and histone acetylation for transcriptional activation. Conversely, ACLY deficiency (via knockdown, knockout, or AKT inhibition) reduces nuclear acetyl‐CoA, disrupts ...
Yerong Ma, Yingyi Zhang, Weijie Yang, Xiaomei Tong, Siya Liu, Yan Zhou, Mengjia Qiu, Huifang Jiang, Zhanhong Hu, Peipei Ren, Yan Rong, Mengru Lai, Jiamin Jin, Fei Huang, Liujian Ouyang, Feng Zhou, Heng‐Yu Fan, Yin‐Li Zhang, Songying Zhang   +18 more
wiley   +1 more source

MYC Binding Near Transcriptional End Sites Regulates Basal Gene Expression, Read‐Through Transcription, and Intragenic Contacts

Advanced Science, EarlyView.
MYC is a transcription factor (TF) that binds DNA near transcriptional start sites (TSSs) and within enhancer elements. Here, unappreciated sites of MYC binding in the vicinity of transcriptional end sites (TESs) of many genes in multiple cell types in association with numerous other TFs are described previously.
Huabo Wang, Bingwei Ma, Taylor Stevens, Jessica Knapp, Jie Lu, Edward V. Prochownik   +5 more
wiley   +1 more source

Engineering Electron Transfer Flux between Cytochrome P450 Enzyme and P450 Reductase to Enhance Serotonin Production in Escherichia Coli

Advanced Science, EarlyView.
The electron transfer flux in CPR‐P450 catalytic system is systematically engineered through: i) enhancing electron transfer rate by redesigning the putative electron transfer pathway of CPR; ii) improving electron‐receiving rate by evolving the heme domain of tryptophan‐5‐hydroxylase (T5H); iii) enlarging electron supply by fine‐tuning NADPH synthesis.
Wenzhao Xu, Pengling Wei, Lirong Chen, Ling Gao, Xiaole Xia   +4 more
wiley   +1 more source

CircTP53/USP10/p53 signaling Axis as a Novel Regulator of Progression and Prognosis of Head and Neck Squamous Cell Carcinoma

Advanced Science, EarlyView.
The study identifies a novel circular RNA derived from the TP53 gene (circTP53), which is upregulated in HNSCC and correlates with poor patient prognosis. It demonstrates that circTP53 promotes HNSCC progression by interacting with USP10, stabilizing both proteins, enhancing deubiquitination of p53, and thereby influencing tumor growth, with its ...
Yin Wang, Fen Chang, Zinan Li, Chengcheng Duan, Xiangkai Sun, Siyu Wang, Dongmin Wei, Wenming Li, Ye Qian, Shengda Cao, Juan Zhao, Dapeng Lei   +11 more
wiley   +1 more source

Activation of HTR2B Suppresses Osteosarcoma Progression through the STAT1‐NLRP3 Inflammasome Pathway and Promotes OASL1+ Macrophage Production to Enhance Antitumor Immunity

Advanced Science, EarlyView.
Activation of HTR2B suppresses osteosarcoma progression through the STAT1‐NLRP3 inflammasome pathway and promotes OASL1+ Macrophage production to enhance anti‐tumor immunity. Abstract Osteosarcoma is a primary malignant bone tumor originating from mesenchymal tissue, and associated with poor prognosis.
Zhen Huang, Jiazhuang Zhu, Jianping Hu, Xingkai Wang, Xiaolong Ma, Enjie Xu, Kunpeng Zhu, Chunlin Zhang   +7 more
wiley   +1 more source

Enhanced Activities of OCT4 and SOX2 Promote Epigenetic Reprogramming by Shortening G1 Phase

Advanced Science, EarlyView.
Fusing the VP16 domain to OCT4 and SOX2 (OvSvK) enhances iPSC generation by activating downstream targets, including those regulating the cell cycle. This accelerates reprogramming by shortening the G1 phase and reducing H3K27me3 levels. Modulating Ccnd1, Cdkn2a, and Ccne1 improves efficiency, linking cell cycle to epigenetic remodeling.
Lin Guo, Jiechun Lin, Qiwen Ren, Hao Sun, Yanhua Wu, Haofei Ge, Xiaolan Wu, Lihui Lin, Lining Liang, Changpeng Li, He Liu, Yuangbang Mai, Shilong Chu, Jiadong Liu, Jing Liu, Jiekai Chen, Duanqing Pei, Hui Zheng   +17 more
wiley   +1 more source

Targeted Delivery of α‐ketoglutarate to Macrophages in Bone: A Novel Therapeutic Strategy for Improving Fracture Healing in Type 2 Diabetes

Advanced Science, EarlyView.
The study reveals that glutaminolysis in macrophages is inhibited under type 2 diabetes mellitus (T2DM) conditions, which impedes fracture healing by reducing bone morphogenetic protein 2 (BMP2) production through increased cytosine methylation on the promoter.
Jing Wang, Jiahao Cao, Siqi Zhang, Hongli Chen, Xuebing Yu, Xinli Wang, Tianji Wang, Wei Cao, Wengang Dong, Xinsen Lin, Jia Li, Wei Lei, Yafei Feng   +12 more
wiley   +1 more source

Apoptotic Bodies Restore NAD and Mitochondrial Homeostasis in Fibroblasts

Advanced Science, EarlyView.
Mesenchymal stem cell‐derived apoptotic bodies (MSC‐ABs) target keloid fibroblasts (KFs), restoring nicotinamide adenine dinucleotide (NAD) metabolism and mitochondrial function, suppressing collagen overproduction, and rebalancing tissue homeostasis, offering a novel therapy for keloid.
Shutong Qian, Siya Dai, Chunyi Guo, Wenjun Wang, Jiajia Pang, Yichen Shen, Mingyuan Xu, Jie Hu, Wenguo Cui, Xiaoming Sun, Jinghong Xu   +10 more
wiley   +1 more source

RNA polymerase I holoenzymes [PDF]

Trends in Plant Science, 2001
In eukaryotes, holoenzymes are large preassembled complexes containing RNA polymerases and variable sets of general transcription initiation factors and cofactors that are important for the regulation of gene expression. Recent advances in purification and characterization of RNA polymerase I holoenzyme from plants provide experimental data suggesting ...
William R. Folk, Alexander Kenzior
openaire   +2 more sources

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Transcription by RNA polymerase I

Frontiers in Bioscience, 1998
The genes that code for 45S rRNA, the precursor of 18S, 5.8S and 28S rRNA, are transcribed by RNA polymerase I. In many eukaryotes the genes are arranged as tandem repeats in discrete chromosomal clusters. rDNA transcription and rRNA processing occur in the nucleolus. In vertebrates, at least two factors, SL-1 and UBF, specific for transcription by RNA
Katherine M. Hannan, Ross D. Hannan, Lawrence I. Rothblum   +2 more
openaire   +2 more sources