Results 121 to 130 of about 836,867 (274)

Histone Variant H2A.Z Enhances Histone and Nucleosome Dynamics

Molecular & Cellular Proteomics
Interchanging canonical histone H2A with variant H2A.Z in chromatin complexes is vital for the proper regulation of transcription, DNA damage repair, and centromere maintenance. However, the physical mechanisms underlying functional differences between H2A and H2A.Z complexes are unclear.
Juliana Kikumoto Dias, Prabavi Shayana Dias, Rakhat Alakenova, Charles Mariasoosai, Claudia Claridy, Sameeha Gazi, Hedieh Torabifard, Sheena D'Arcy   +7 more
openaire   +2 more sources

Mechanoactive Biomaterials for Cell–Matrix Mechanotransduction

Advanced Materials, EarlyView.
The graphical abstract shows how individual triggers (force, light, or temperature) and combined optothermal or receptor‐targeted actuation induce material responses at the tissue, cellular, and receptor scales. Their spatial (global or focused) and temporal (continuous or cyclic) modulation determines the resulting mechanical output.
Yi‐Tung Lu, Alison E. John, Marc A. Fernández‐Yagüe   +2 more
wiley   +1 more source

GaSex Nanoparticles Modulate Neutrophil Function and Mitigate NET‐Driven Osteogenic Impairment in Osteomyelitis Therapy

Advanced Materials, EarlyView.
Neutrophil extracellular traps (NETs) emerge as a critical repair‐limiting factor in osteomyelitis, driving osteoblast mitochondrial dysfunction and excessive PINK1/Parkin‐mediated mitophagy. Gallium–selenium nanoparticles (GaSex) scavenge reactive oxygen species, redirect neutrophils from NETosis toward bactericidal phagocytosis, eliminate methicillin‐
Kai Ye, Xuanzhe Liu, Zifan Pei, Chenyi Jiang, Xiaofen Zhang, Lin Lin, Qihang Fang, Binyu Chen, Longxiang Shen, Liang Cheng, Peng Ding, Xianyou Zheng   +11 more
wiley   +1 more source

Changes in the nuclear deposition of histone H2A variants during pre-implantation development in mice

, 2010
Histone H2A has several variants, and changes in chromatin composition associated with their replacement might involve chromatin structure remodeling. We examined the dynamics of the canonical histone H2A and its three variants, H2A.X, H2A.Z and macroH2A,
Fugaku Aoki, Buhe Nashun, Masashi Yukawa, Tomohiko Akiyama, Honglin Liu   +4 more
core   +1 more source

Chemical Screening Identifies Danofloxacin as a Self‐Renewal Agonist of Embryonic Stem Cells through Alleviation of HDAC1‐Mediated Deacetylation of Tert and Prdm10

Advanced Science, EarlyView.
This study identified Danofloxacin as a novel supporter of the maintenance of mouse embryonic stem cell (ESC) pluripotency. It functions partially by inhibiting HDAC1, which increases specific histone acetylation marks and activates key genes like Tert and Prdm10.
Yan Zhang, Junxiang Ji, Baoxing Dong, Zhenhua Zhu, Xucheng Lv, Peng Chen, Wenqiang Liu, Min Zhou, Shou‐Dong Ye   +8 more
wiley   +1 more source

Function of Histones and Variants in Chromatin Remodeling: A Case Study of Spermatogenesis in Aquatic Animals

Progress in Fishery Sciences
Epigenetics refers to heritable changes that do not affect DNA sequences. Compared to genetic changes, epigenetic changes affect gene expression and protein products in cells, and these changes are reversible and dependent on the environment.
Wenteng XU, Xuexue SUN
doaj   +1 more source

CD9+ B Cells Induce T Follicular Helper Cell Apoptosis to Regulate Germinal Center Regression

Advanced Science, EarlyView.
A unique subset of CD9+ B cells regulates germinal center B (GC‐B) cell regression by inducing T follicular helper (Tfh) cell apoptosis through multiple signaling pathways, such as ALCAM‐CD6. FOXP1 plays a key role in GC‐B cell differentiation. These findings clarify mechanisms of GC degeneration and termination and offer potential targets for adenoid ...
Wenjing Liao, Lijuan Song, Meiqian Xu, Tianhao Liang, Yixuan Chen, Gui Chen, Zaihuan Lin, Huakang Du, Guofei Feng, Zhiming Feng, Qi Zhang, Fan Pan, Saixuan Yang, Xinyin Zhang, Wenxu Peng, Tianlong Li, Zhuoshen Lin, Yabang Chen, Jiayi Liu, Baoxin Peng, Yan Liu, Xing Niu, Ting Li, Chengyu Huang, Ke Mo, Jianlei Xie, Yu Zou, Xiaowen Zhang   +27 more
wiley   +1 more source

Dual Role of Tamoxifen in Enhancing STING and CEACAM1 Expression to Prime a Favorable Tumor Microenvironment for Anti‐TIM3 Immunotherapy

Advanced Science, EarlyView.
Anti‐PD‐1/PD‐L1 blockade has revolutionized cancer immunotherapy, but is ineffective against endocrine‐treated (i.e., Tamoxifen), relapsed ER+ breast cancer (BC) patients. This study provides insight into the sub‐optimal response of ER+BCs to anti‐PD‐1/PD‐L1 blockade – highlighting the induction of STING and the CEACAM1/TIM3 axis after chronic ...
Marvin Angelo E Aberin, Saurabh Singh, Soumya Chatterjee, Guang‐Zhi Sui, Yi‐Fu Wang, Ya‐Ting Lu, Yu‐Ling Lee, Kun‐Yuan Lin, Joy Khag, Ta‐Yu Liu, Shao‐Han Chang, Wai‐Mui Cheung, Hsiao‐Chin Hong, Ren‐Jun Hsu, Chen‐Yang Shen, Chia‐Wei Li, Weng‐Lang Yang, Yao‐Ming Chang, Shih‐Yu Chen, Chandan Guha, Shu‐Ping Wang   +20 more
wiley   +1 more source

Histone H3.1 is a chromatin-embedded redox sensor triggered by tumor cells developing adaptive phenotypic plasticity and multidrug resistance

Cell Reports
Summary: Chromatin structure is regulated through posttranslational modifications of histone variants that modulate transcription. Although highly homologous, histone variants display unique amino acid sequences associated with specific functions ...
Flavio R. Palma, Diego R. Coelho, Kirthi Pulakanti, Marcelo J. Sakiyama, Yunping Huang, Fernando T. Ogata, Jeanne M. Danes, Alison Meyer, Cristina M. Furdui, Douglas R. Spitz, Ana P. Gomes, Benjamin N. Gantner, Sridhar Rao, Vadim Backman, Marcelo G. Bonini   +14 more
doaj   +1 more source

BAP31 Drives Cartilage Calcification through Disruption of Autophagosome–Lysosome Fusion in Osteoarthritis

Advanced Science, EarlyView.
Mechanical stress activates BAP31 in chondrocytes. BAP31 competes with ATG14 for binding to STX17, disrupting the STX17–ATG14 complex required for autophagosome–lysosome fusion. The resultant autophagic flux blockade drives the generation of autophagy‐derived exosomes, which mediate pathological cartilage calcification in OA. Chondrocyte‐targeted BAP31
Zhi‐hua Xu, Ruo‐xin Wang, Feng He, Qian Liu, Fu‐yin Li, Min Hui, Yu‐qian Shi, Yu Jiang, Qing‐hua Li, Jun‐wen Jing, Shi‐bin Yu, Li‐tian Ma, Qian‐nan Niu, Mian Zhang   +13 more
wiley   +1 more source