Results 71 to 80 of about 33,064 (290)

Programmable Multi‐Axially Aligned Aerogels via Sequential Freeze‐Casting for Tailored Anisotropy and Tunable Mechanics

Advanced Science, EarlyView.
Conventional single‐gradient freeze‐casting typically produces unidirectional porous architectures with limited transverse connectivity. The Sequential Hybridization by Infiltration and Freeze‐casting Technique (SHIFT) addresses this constraint by integrating secondary aligned structures within a preformed primary scaffold.
Kiho Sung, Sungchul Shin
wiley   +1 more source

The comet assay in nanotoxicology research

Analytical and Bioanalytical Chemistry, 2010
Nanoscale particles can have impressive and useful characteristics, but the same properties may be problematic for human health. From this perspective it is critical to assess the ability of nanoparticles to cause DNA damage. This review focuses on the use of the comet assay in nanotoxicology research.
Karlsson, Hanna L.
openaire   +2 more sources

Repair of DNA interstrand crosslinks as a mechanism of clinical resistance to melphalan in multiple myeloma

, 2002
Melphalan is widely used as a preparative agent in patients with multiple myeloma (MM) undergoing autologous stem cell transplantation (SCT). Although disease relapse is the major cause of death after a melphalan-conditioned autograft, the mechanism ...
Mahendra, P, Hochhauser, D, Hockhauser, D, Spanswick, VJ, Shankaranarayana, P, Mahendra, Premini, Hughes, RG, Craddock, Charles; id_orcid, Craddock, C, Sekhar, M, Hartley, JA, Spanswick, V   +11 more
core   +1 more source

REGγ Suppresses Ferroptosis and Induces Drug Resistance by Degrading WDR6 in Chondrosarcoma

Advanced Science, EarlyView.
Here, we identified REGγ as a susceptibility factor in chondrosarcoma. Our study demonstrates that abnormally activated REGγ‐20S proteasome promotes chondrosarcoma development and progression. Further validation in animal models revealed that blocking REGγ function induced ferroptosis, suppressed malignant progression of chondrosarcoma, and uncovered a
Fanrong Liu, Shihui Shen, Dongxia Li, Peilin Shi, Jiaming Xu, Tongxin Lv, Yingying Du, Jingwei Zhang, Bo Yang, Hansen Chen, Zhuoya Peng, Wenjie Ren, Lu Zhang, Sheng Cheng, Tongjin Yin, Wencai Sheng, Lei Li, Juan Wu, Qingcheng Yang, Shuogui Xu, Wei Zheng   +20 more
wiley   +1 more source

Applications of the comet assay in particle toxicology: Air pollution and engineered nanomaterials exposure

, 2014
Exposure to ambient air particles is associated with elevated levels of DNA strand breaks (SBs) and endonuclease III, formamidopyrimidine DNA glycosylase (FPG) and oxoguanine DNA glycosylase-sensitive sites in cell cultures, animals and humans.
Roursgaard, M., Cao, Y., Christophersen, D.V., Karottki, D.G., Danielsen, P.H., Hersoug, L.-G., Kermanizadeh, A., Hemmingsen, J.G., Jantzen, K., Loft, S., Jensen, D.M., Klingberg, H., Møller, P.   +12 more
core   +1 more source

ANXA2+ Small Extracellular Vesicles Drive Chemoresistance in Anaplastic Thyroid Cancer by Promoting XRCC5 Lactylation and Enhancing Non‐Homologous End‐Joining Repair

Advanced Science, EarlyView.
ANXA2+ sEVs promote cisplatin resistance in ATC by stabilizing the SRC/LDHA interaction, increasing LDHA phosphorylation and activity, and lactate production. Elevated lactate levels promote KAT5‐mediated lactylation of XRCC5 at lysine 265, enhancing its binding to XRCC6.
Shanshan Su, YiShan Xiong, Yuxuan Liang, Xiang Min, Daofeng Dai   +4 more
wiley   +1 more source

PFKFB4 Deubiquitination by USP10 Enhances Fumarate Metabolism to Orchestrate the KDM1A/Rad51 Axis and Confer Radioresistance in Lung Cancer

Advanced Science, EarlyView.
USP10 binds to and stabilizes PFKFB4, enhancing glycolytic ATP production, which activates the urea cycle and elevates fumarate. This inhibits histone demethylase KDM1A, leading to increased H3K4me1 enrichment at the Rad51 promoter and direct activation of Rad51 transcription, which confers lung cancer radioresistance. The PFKFB4 inhibitor 5MPN targets
Yunshang Chen, Zilong Wu, Yongqiang Yang, Ruoxin Fang, Huichan Xue, Rui Zhou, Gang Wu, Xiaohua Jie   +7 more
wiley   +1 more source

Dielectric Elastomer Actuators as Safe and Effective Tools for Mechanostimulation of Human Cells

Advanced Intelligent Systems, EarlyView.
Replicating physiological forces is crucial for realistic cell models. Dielectric elastomer actuators (DEAs) offer a soft alternative, though their high voltages raised toxicity concerns. We demonstrate that DEA stimulation causes no cell damage, cell death or cell‐cycle disruption, while activating mechanosensitive responses.
Simon Holzer, Chaimae Bahou, Noe Syfrig, Katia Monastyrskaya, Yoan Civet, Ali Hashemi Gheinani, Yves Perriard   +6 more
wiley   +1 more source

LiCoO2 particles used in Li-ion batteries induce primary mutagenicity in lung cells via their capacity to generate hydroxyl radicals

Particle and Fibre Toxicology, 2020
Background Li-ion batteries (LIB) are used in most portable electronics. Among a wide variety of materials, LiCoO2 (LCO) is one of the most used for the cathode of LIB.
Violaine Sironval, Vittoria Scagliarini, Sivakumar Murugadoss, Maura Tomatis, Yousof Yakoub, Francesco Turci, Peter Hoet, Dominique Lison, Sybille van den Brule   +8 more
doaj   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

The Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source