Results 71 to 80 of about 123,835 (338)

Optimized Monothiol Thioredoxin Derivative (ORP100S) Protects In Vitro and In Vivo from Radiation and Chemotoxicity Without Promoting Tumor Proliferation

Advanced Science, EarlyView.
Native thioredoxin‐1 (TRX) stimulates proliferation and rescues stem cells and cancer cells from multiple stressors by suppressing p53 and inhibiting ferroptosis via GPX4/SLC7A11 upregulation mediated by enhanced KLF4 expression and p53 promoter binding.
Jian Wu, Xiaobei Wang, Parker Mathews, Shaima Jabbar, Min Zhang, Haim Moskowitz, Wei Duan, David P. Nichols, George William Schaaf, John D. Olson, Andrew N. Macintyre, J. Daniel Bourland, Ivan Spasojevic, Jen‐Tsan Ashley Chi, Joel Ross, Nelson Chao, J. Mark Cline, Peter B. Heifetz, Yubin Kang   +18 more
wiley   +1 more source

Ultrastructural and immunocytochemical analysis of the XY body in rat and Guinea pig

European Journal of Histochemistry, 2009
The formation of the XY body involves the compaction of the extended chromatin to form a mesh of fibrogranular structures. During this process the ribonucleoprotein particles (RNP), which were associated with the chromatin filaments progressively ...
OM Echeverría, R Benavente, R Ortiz, GH Vázquez-Nin   +3 more
doaj   +1 more source

Chromatin modification by PSC occurs at one PSC per nucleosome and does not require the acidic patch of histone H2A. [PDF]

PLoS ONE, 2012
Chromatin architecture is regulated through both enzymatic and non-enzymatic activities. For example, the Polycomb Group (PcG) proteins maintain developmental gene silencing using an array of chromatin-based mechanisms.
Stanley M Lo, Kyle A McElroy, Nicole J Francis   +2 more
doaj   +1 more source

Gut Microbial Genetic Variation Prolongs Host Healthy Longevity and Remodels Metabolome and Proteome in Drosophila Melanogaster

Advanced Science, EarlyView.
This study reveals that specific genetic variations in gut‐residing Saccharomyces cerevisiae significantly extend healthspan and lifespan in Drosophila melanogaster. These mutants rejuvenate aged intestinal metabolism, upregulate mitochondrial proteins, and enhance energy pathways.
Liying Wang, Ziling Yang, Yulu Pang, Xinyue Wu, Xinrong Zhang, Tao Zhu, Xiaoyue Ding, Wei Liu, Yuan Zhou, Pengcheng Zhang, Ying Li, Zuobin Zhu   +11 more
wiley   +1 more source

Human male meiotic sex chromosome inactivation. [PDF]

PLoS ONE, 2012
In mammalian male gametogenesis the sex chromosomes are distinctive in both gene activity and epigenetic strategy. At first meiotic prophase the heteromorphic X and Y chromosomes are placed in a separate chromatin domain called the XY body.
Marieke de Vries, Sanne Vosters, Gerard Merkx, Kathleen D'Hauwers, Derick G Wansink, Liliana Ramos, Peter de Boer   +6 more
doaj   +1 more source

Nejire/dCBP-mediated control of H3 acetylation and transcriptional regulation by testis-specific Plus3 domain proteins during Drosophila spermatogenesis [PDF]

, 2018
Spermatogenesis describes the development from germ line stem cells to highly specialized sperm. Drosophila melanogaster spermatogenesis is a good model system for chromatin remodelling processes as many of these processes are similar in mammals and in ...
Hundertmark, Tim
core   +1 more source

RIPK1 Drives JAK1‐STAT3 Signaling to Promote CXCL1‐Mediated Neutrophil Recruitment in Sepsis‐Induced Lung Injury

Advanced Science, EarlyView.
This article examines the central role of RIPK1 in the pathogenesis of sepsis‐induced lung injury. It elucidates how RIPK1 initiates an inflammatory cascade by activating JAK1‐STAT3 signaling, leading to CXCL1‐mediated neutrophil infiltration. Importantly, it demonstrates that pharmacological inhibition of RIPK1 effectively attenuates inflammation and ...
Hao Sun, Xiya Li, Shenjia Gao, Yi Jiang, Xinyi Wu, Zhaoyuan Chen, Han Wu, Qing Hua, Rui Zu, Huaijiang Xiang, Ronen Ben‐Ami, Changhong Miao, Li Tan, Ying Li, Jun Wang, Wankun Chen   +15 more
wiley   +1 more source

Novel Evolutionarily Conserved Oncogene COA4 is Driven by KRAS Mutant and Promotes Cancer Metastasis Through Dual Mitochondrial Metabolism‐Dependent and ‐Independent Mechanisms

Advanced Science, EarlyView.
In KRAS‐mutant tumors, KRAS transcriptionally upregulates COA4 via the PI3K/AKT/E2F1 axis, promoting metastasis. Mechanistically, COA4 enhances tumor cell migration through dual pathways: within mitochondria, it boosts oxidative phosphorylation; in the cytoplasm, it binds and activates CDC42 to stimulate pseudopodia formation.
Xingzhao Ji, Weiying Zhang, Fuyuan Xue, Jiazhen Zeng, Qinghua Zhao, Xiaoming Sun, Jian Sun, Heng Zhou, Quanlin Xu, Guoyuan Ma, Shengnan Sun, Ying Wang, Qian Mu, Yi Liu, Qiang Wan   +14 more
wiley   +1 more source

Elusive Parnassius mnemosyne (Linnaeus, 1758) larvae: habitat selection, sex determination and sex ratio (Lepidoptera: Papilionidae)

SHILAP, 2017
The charismatic and regionally declining Parnassius mnemosyne (Linnaeus, 1758) is notable for surpluses of males in mark-recapture studies, as well as for poor detectability of its larvae, which develop on spring ephemeral plants, Corydalis spp.
P. Vlasánek, A. Bartonová, F. Marec, M. Konvicka   +3 more
doaj   +1 more source

Sex Differences in Drosophila melanogaster Heterochromatin Are Regulated by Non-Sex Specific Factors. [PDF]

PLoS ONE, 2015
The eukaryotic genome is assembled into distinct types of chromatin. Gene-rich euchromatin has active chromatin marks, while heterochromatin is gene-poor and enriched for silencing marks.
Manasi S Apte, Victoria H Meller
doaj   +1 more source