Results 61 to 70 of about 60,603 (249)

Mechanical Activation of Piezo1 Drives Osteoarthritis Through Kdm5c‐Mediated Epigenetic Silencing

Advanced Science, EarlyView.
Excessive mechanical stress activates Piezo1, triggering Ca2+‐dependent cytoskeletal forces that deform the nucleus and reduce H3K4me3. Kdm5c demethylates H3K4me3 at Col2a1 and Runx3 promoters. Kdm5c knockout rescues degradation. Repurposed telmisartan directly inhibits Kdm5c, blocking this axis and showing disease‐modifying efficacy in mouse OA models
Tianyou Kan, Xuran Li, Han Wang, Lin Sun, Yao Wang, Jiangdong Wu, Junqi Cui, Yiqi Yang, Kai Yuan, Linyang Chu, Liao Wang, Hanjun Li, Mengning Yan, Zhifeng Yu   +13 more
wiley   +1 more source

NF-kappaB mediates Gadd45beta expression and DNA demethylation in the hippocampus during fear memory formation.

Frontiers in Molecular Neuroscience, 2015
Gadd45-mediated DNA demethylation mechanisms have been implicated in the process of memory formation. However, the transcriptional mechanisms involved in the regulation of Gadd45 gene expression during memory formation remain unexplored.
Timothy J Jarome, Anderson A. Butler, Jessica N. Nichols, Natasha L. Pacheco, Farah D. Lubin   +4 more
doaj   +1 more source

Reprogramming of fibroblast cells to totipotent state by DNA demethylation

Scientific Reports, 2023
Many attempts have been made to induce high-quality embryonic stem cells such as pluripotent stem cells and totipotent stem cells, but challenges remain to be overcome such as appropriate methods and sources.
Mohammad H. Ghazimoradi, Kouichi Hasegawa, Ehsan Zolghadr, Samaneh Montazeri, Shirin Farivar   +4 more
doaj   +1 more source

RBM12 Maintains Glioma Stem Cells by Activating Amino Acid‐Dependent mTORC1 Signaling via SLC7A5 mRNA Stabilization

Advanced Science, EarlyView.
This study shows that in glioma stem cells (GSCs), RBM12 recruits ALKBH5 to remove m6A from SLC7A5 transcripts, thereby enhancing mRNA stability, which elevates large neutral amino acid (LNAA) levels and activates mTORC1, promoting GSC proliferation, self‐renewal, and tumor growth.
Hong Lei, Wenlong Luo, Shu Zhou, Lihao Wan, Peng Ling, Zhihua Huang, Zhihua Qian, Chenfei Lu, Mengyue Guo, Zhen Xue, Jun Qin, Ningwei Zhao, Jianghong Man, Wenchao Zhou, Zhiqiang Dong, Shutong Xu, Zhipeng Zhou, Xiuxing Wang, Weiwei Tao   +18 more
wiley   +1 more source

DNA demethylation is involved in nitric oxide-induced flowering in tomato

Journal of Integrative Agriculture
Flowering is one of the most important phenological periods, as it determines the timing of fruit maturation and seed dispersal. To date, both nitric oxide (NO) and DNA demethylation have been reported to regulate flowering in plants.
Xuemei Hou, Meimei Shi, Zhuohui Zhang, Yandong Yao, Yihua Li, Changxia Li, Wenjin Yu, Chunlei Wang, Weibiao Liao   +8 more
doaj   +1 more source

Histone Demethylation and Timely DNA Replication [PDF]

Molecular Cell, 2010
It is well-established that silent regions of the genome replicate late during S phase. In this issue of Molecular Cell, Black et al. (2010) uncover a conserved role for the JMJD2 family of histone demethylases in promoting replication within silent chromatin regions that contain histone H3 lysine 9 methylation and HP1.
Gerace, Erica L., Moazed, Danesh
openaire   +2 more sources

Computation‐Guided Tunnel Engineering Enhances O2 Transport and H2O2 Resistance of Fe(II)/α‐Ketoglutarate‐Dependent Dioxygenases

Advanced Science, EarlyView.
This study presents a computational tunnel engineering strategy in Fe(II)/α‐ketoglutarate‐dependent dioxygenases (αKGDs) to enhance oxygen (O2) transport, an essential molecule for αKGDs, and limit hydrogen peroxide (H2O2) entry, an inhibitor from the αKG supply system.
Huan Liu, Lunjie Wu, Liying Mao, Songyin Zhao, Hu Liu, Shiyi Xin, Donglin Zhao, Jie Gu, Yan Xu, Xinye Wang, Yao Nie   +10 more
wiley   +1 more source

Glutathione‐Responsive Acyl‐Modifications for Targeted RNA Decaging and Prolonged Protein Synthesis

Angewandte Chemie, EarlyView.
The self‐immolation of disulfide‐based mRNA modifications in response to endogenous glutathione (GSH) promotes a gradual release of translatable mRNA within the cell, leading to improved nuclease resistance, tunable release properties, and a significant increase (up to 600%) of target protein production over time. This strategy offers an exciting proof
Mary E. Flood, Sathishkumar Kurusamy, Mark Berney, C. Mark Smales, Elizabeth M. Topp, Joanna F. McGouran, Steven Ferguson   +6 more
wiley   +2 more sources

Aberrant DNA methylation of Tgfb1 in diabetic kidney mesangial cells

Scientific Reports, 2018
Epigenetic modulation may underlie the progression of diabetic nephropathy (DN). Involvement of TGFB1 in mesangial fibrosis of DN led us to hypothesize that Tgfb1 DNA demethylation contributes to progression of DN.
Shigeyoshi Oba, Nobuhiro Ayuzawa, Mitsuhiro Nishimoto, Wakako Kawarazaki, Kohei Ueda, Daigoro Hirohama, Fumiko Kawakami-Mori, Tatsuo Shimosawa, Takeshi Marumo, Toshiro Fujita   +9 more
doaj   +1 more source

Oxidative Demethylation of DNA

The FASEB Journal, 2007
Oxidative demethylation of DNA Non‐enzymatic methylation of DNA by alkylating agents such as MMS occurs at several sites, but not at the 5 position of cytosine. Instead, the main cytotoxic lesions are 3‐methyladenine, and in single‐stranded regions of DNA also 1‐methyladenine and 3‐methylcytosine.
Tomas Lindahl, Barbara Sedgwick
openaire   +1 more source