Results 111 to 120 of about 6,021,091 (244)

CTCF-mediated insulation and chromatin environment modulate Car5b escape from X inactivation

BMC Biology
Background Genes that escape X-chromosome inactivation (XCI) in female somatic cells vary in number and levels of escape among mammalian species and tissues, potentially contributing to species- and tissue-specific sex differences.
He Fang, Ana R. Tronco, Giancarlo Bonora, Truong Nguyen, Jitendra Thakur, Joel B. Berletch, Galina N. Filippova, Steven Henikoff, Jay Shendure, William S. Noble, Zhijun Duan, Christine M. Disteche, Xinxian Deng   +12 more
doaj   +1 more source

TP53 Loss Elevates NF‐κB‐IFN‐β‐MHC‐Ia Signaling to Promote NK Cell Resistance in Osteosarcoma

Advanced Science, EarlyView.
TP53 loss in a transforming or osteosarcoma cell promotes cytosolic DNA accumulation, activating NF‐κB‐dependent IFN‐β production. Autocrine IFN‐β signaling increases cell‐surface HLA‐Ia expression, strengthens inhibitory KIR signaling in natural killer cells, and thereby enables the affected cell to evade NK cell‐mediated cytotoxicity.
Guihui Qin, Cheung Kwan Yeung, Ye Yi, Dejin Zheng, Miaoman Ye, Chi‐Chong Chio, Jinjie Wu, Siyi Fu, Chu‐Xia Deng, Ren‐He Xu   +9 more
wiley   +1 more source

Magneto‐Sono‐Enhanced Nanozyme Catalysis Drives ROS‐Mediated Pathogen Killing and Mitophagy‐Linked Inflammation Control in Bacterial Pneumonia

Advanced Science, EarlyView.
Nebulized BN@NF nanozymes integrate boron nanosheets with Nd‐doped iron phosphide to form a sono‐magneto‐responsive Z‐scheme heterostructure. Under ultrasound and magnetic activation, BN@NF amplifies ROS generation, eradicates bacteria, disrupts biofilms, and reshapes pulmonary inflammation through NF‐κB suppression, mitophagy promotion, and M1‐to‐M2 ...
Xiaofeng Luo, Yundi Wu, Shuai Zhang, Huanran Qu, Shiyang Shao, Jianqiang Chen, Xilong Wu   +6 more
wiley   +1 more source

Implication of the Mediator kinase module in CIZ1 recruitment and gene silencing by Xist during the initiation of X inactivation

Epigenetics Reports
In mammals, dosage compensation between the sexes is mediated by X chromosome inactivation. The long non-coding Xist RNA initiates this process. The molecular mechanism of X-linked gene silencing is beginning to be understood. We have previously reported
Jingyi Chen, Kevin Halter, Timothe Weitzel, Anton Wutz   +3 more
doaj   +1 more source

Aspirin‐Derived Salicyl‐CoA Drives Histone Lysine Salicylation Regulated by CBP and SIRT2

Advanced Science, EarlyView.
Aspirin‐derived salicyl‐CoA serves as a previously unrecognized acyl donor for protein lysine salicylation. This study identifies histone lysine salicylation as a reversible epigenetic modification regulated by CBP and SIRT2, expanding the biochemical actions of aspirin beyond its canonical acetylation‐dependent mechanisms and providing a new framework
Facai Zhang, Chuanzan Zhou, Jiaoyan He, Pengpeng Huang, Rong Zhang, Huan Hu, Meng Jiao, Linyi Hu, Feng Liu, Xiaolong Qi, Xiang He, Yunkai Yang, Y Eugene Chinn, Dechao Feng, Dahong Zhang, Qi Zhang   +15 more
wiley   +1 more source

Activation of X Chromosome Inactivation [PDF]

, 2016
In mammals, males are the heterogametic sex having an X chromosome and a Y chromosome whereas females have two X chromosomes. Despite originating from an ancient homologous autosomal pair, the X and Y chromosome now differ greatly in size and gene ...
Maduro, C.M. (Cheryl)
core   +1 more source

Prenatal Evaluation of RNU4‐2 Variants in Fetuses With Central Nervous System Anomalies

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Fetal central nervous system (CNS) anomalies are among the most common congenital malformations, yet the overall prenatal diagnostic yield of current genetic testing remains below 40%. Variants in RNU4‐2, a non‐coding gene encoding the U4 small nuclear RNA (snRNA), have recently been linked to a novel highly recurrent dominant ...
Yiyao Chen, Li Gao, Xu Han, Yunyun Cao, Lanlan Zhang, Yi Wu, Xinrong Zhao, Wenjing Hu, Ruiyu Ma, Renyi Hua, Niu Li, Yanlin Wang, Jian Wang, Shuyuan Li   +13 more
wiley   +1 more source

RNF12 initiates X-chromosome inactivation by targeting REX1 for degradation

, 2012
Evolution of the mammalian sex chromosomes has resulted in a heterologous X and Y pair, where the Y chromosome has lost most of its genes. Hence, there is a need for X-linked gene dosage compensation between XY males and XX females. In placental mammals,
Wilfred van IJcken, Mulugeta, Eskeatnaf, Gribnau, Joost, J. Anton Grootegoed, Joost Gribnau, Jeroen Demmers, Barakat, Stefan; id_orcid, Barakat, Stefan, Eskeatnaf Mulugeta Achame, Cristina Gontan, Rentmeester, Eveline, Eveline Rentmeester, Demmers, Jeroen, Grootegoed, Anton, van Ijcken, Wilfred, van Ijcken, Wilfred; id_orcid, Tahsin Stefan Barakat, Gontan Pardo, Cristina   +17 more
core   +1 more source

Identification of senescence‐related genes in Parkinson's disease reveals candidate therapeutic targets and pathological processes

Animal Models and Experimental Medicine, EarlyView.
At the genomic level, a large number of differentially expressed genes (DEGs) and aging‐related DEGs have been screened. Ten hub genes, such as IFNγ and IRF7, have been identified and shown potential value in the diagnosis of PD, holding promise as novel biomarkers to facilitate early and precise diagnosis.
Haojie Wu, Tingting Liu, Xiangshu Cheng, Jianshe Wei   +3 more
wiley   +1 more source

Bovine mammary gland X chromosome inactivation

, 2017
X chromosome inactivation (XCI) is a process by which 1 of the 2 copies of the X chromosomes present in female mammals is inactivated. The transcriptional silencing of one X chromosome achieves dosage compensation between XX females and XY males and ...
K. Tiplady, Scott, A, Davis, SR, Johnson, T, M. Keehan, I.L. Zhang, R.G. Sherlock, R.J. Spelman, A. Scott, T. Johnson, T. Lopdell, Spelman, RJ, Keehan, M, Leathwick, Lingjun, Littlejohn, MD, M.D. Littlejohn, Sherlock, RG, S.R. Davis, Lopdell, Thomas, Tiplady, K, Couldrey, C, C. Couldrey   +21 more
core   +1 more source