Results 91 to 100 of about 317,261 (329)

Early X chromosome inactivation during human preimplantation development revealed by single-cell RNA-sequencing

Scientific Reports, 2017
In female mammals, one X chromosome is transcriptionally inactivated (XCI), leading to dosage compensation between sexes, fundamental for embryo viability.
J. C. Moreira de Mello, G. Fernandes, M. Vibranovski, L. Pereira   +3 more
semanticscholar   +1 more source

Sexual Antagonism and the Evolution of X Chromosome Inactivation [PDF]

, 2013
In most female mammals, one of the two X chromosomes is inactivated early in embryogenesis. Expression of most genes on this chromosome is shut down, and the inactive state is maintained throughout life in all somatic cells.
Engelstädter, Jan, Haig, David Addison
core   +1 more source

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

Advanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol, Lihi Gur‐Arie, Netanel Tzarum, Tamara Wellins, Naama Katsowich, Miriam Ravins, Michal Bejerano‐Sagie, Klil Cohen, Oded Livnah, Joshua N. Adkins, Ernesto Nakayasu, Alexei Savchenko, Yeu Khai Choong, Nikhil Kumar Tulsian, Saturo Machida, Sigal Ben‐Yehuda, Yael Litvak, J. Sivaraman, Ilan Rosenshine   +18 more
wiley   +1 more source

Transcriptional changes in response to X chromosome dosage in the mouse: implications for X inactivation and the molecular basis of Turner Syndrome

BMC Genomics, 2010
Background X monosomic mice (39,XO) have a remarkably mild phenotype when compared to women with Turner syndrome (45,XO). The generally accepted hypothesis to explain this discrepancy is that the number of genes on the mouse X chromosome which escape X ...
Sargent Carole A, Bauer Julien, Ojarikre Andrew, Burgoyne Paul S, Lopes Alexandra M, Amorim António, Affara Nabeel A   +6 more
doaj   +1 more source

Epigenetic silencing of X-chromosome [PDF]

, 2012
Komosomi X su spolni kromosomi koji nose velik broj gena koji nisu povezani sa spolnom determinacijom i reprodukcijom već kontroliraju različite metaboličke puteve. Kod ženki sisavaca dolazi do mehanizma kompenzacije doze zbog postojanja dva kromomsoma X.
Kužet, Sanya Eduarda
core   +2 more sources

Systematic optimization of human pluripotent stem cells media using Design of Experiments. [PDF]

, 2015
Human pluripotent stem cells (hPSC) are used to study the early stages of human development in vitro and, increasingly due to somatic cell reprogramming, cellular and molecular mechanisms of disease.
Chailangkarn, Thanathom, Marinho, Paulo A, Muotri, Alysson R   +2 more
core   +1 more source

Fibrates Inhibit PLTP‐induced M2 Macrophage Infiltration and Increase the Sensitivity of Hepatocellular Carcinoma to ICIs

Advanced Science, EarlyView.
Phospholipid transfer protein(PLTP) plays a critical role in forming a complex with kinase A (AURKA) and P65. This interaction facilitates phosphorylation of P65 at Ser536, leading to the activation of the NF‐κB signaling pathway. Ultimately, this leads to the upregulation of downstream cytokines, including IL‐6, IL‐8, and CSF‐1, which promotes M2 ...
Xinyue Liang, Yaning Li, Jianxun Cai, Lisi Luo, Pengfei Yang, Yutong Chen, Jiancong Zhou, Yan Zeng, Jiaping Yu, Weiyu Zhang, Wenzheng Pang, Yufang Li, Chunhua Wen, Jian Li, Linjuan Zeng   +14 more
wiley   +1 more source

X Inactivation and Escape: Epigenetic and Structural Features

Frontiers in Cell and Developmental Biology, 2019
X inactivation represents a complex multi-layer epigenetic mechanism that profoundly modifies chromatin composition and structure of one X chromosome in females.
He Fang, Christine M. Disteche, Christine M. Disteche, Joel B. Berletch   +3 more
doaj   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

Advanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su, Ting‐Chun Chou, Maria Teresa López‐Cascales, Junfeng Huang, Tsai‐Ying Chen, Sjoukje van Wieren, Chan Li, Cecile Beerens, Li You, Jelle Storteboom, Miao‐Ping Chien   +10 more
wiley   +1 more source

His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation [PDF]

, 1988
The yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions.
Fitzek, M., Kellerer, Albrecht M., Roos, H., Thomas, W.-H.   +3 more
core   +1 more source