Results 61 to 70 of about 2,409,493 (295)

Liposomal Nanoconfinement Enables Type I Photodynamic Conversion for Synergistic Cancer Photothermal‐Immunotherapy

Advanced Science, EarlyView.
Liposomal nanoconfinement converts the hemicyanine photosensitizer RhM from Type‐II to Type‐I photodynamic therapy (PDT) while enhancing photothermal therapy (PTT). The RhM‐R837@Lip nanoassembly efficiently generates superoxide (O2•−) and hydroxyl radicals (•OH) to kill tumor cells and achieve tumor ablation.
Minglu Zhang, Shanshan Liang, Meng Wang, Tingfeng Zhang, Jinke Liu, Yuyuan Peng, Hao Fang, Lingna Zheng, Xiao He, Meng Wang, Luling Wu, Tony D. James, Wei Zhao, Bing Wang, Weiyue Feng   +14 more
wiley   +1 more source

Covalent Protein Inhibitors via Tyrosine and Tryptophan Conjugation with Cyclic Imine Mannich Electrophiles

Angewandte Chemie, EarlyView.
Targeted covalent inhibitors (TCI) containing cyclic imine warheads react with tyrosine and tryptophan residues via the Mannich reaction. These cyclic imine warheads show comparable reaction kinetics to cysteine‐reactive electrophiles commonly used in TCIs.
Sijie Wang, Lei Wang, Marco Hadisurya, Siavash Shahbazi Nia, W. Andy Tao, Emily C. Dykhuizen, Casey J. Krusemark   +6 more
wiley   +2 more sources

Metabologenomic Hallmark‐Based Discovery of Bacterial Thioamides as a New Lead against Drug‐Resistant Pancreatic Cancer

Advanced Science, EarlyView.
A targeted metabologenomic strategy integrating genomic and metabolomic hallmarks enabled the discovery of two new thioamides, thiogochangamides A and B, from bacteria. Their absolute configurations, previously unresolved within the thioviridamide family, were fully assigned through various chemical derivatizations and computational analysis ...
Young Eun Du, Eun Seo Bae, Thinh T. M. Bui, Seok Beom Lee, Dahan Kim, Jin‐Gyeong Park, Yongjoo Park, Soo Yeon Park, Sangwook Kang, Beomsu Lee, Daniel Shin, Yun Pyo Kang, In‐Gyun Lee, Dae‐Duk Kim, Seokhee Kim, Suckchang Hong, Kyuho Moon, Sang Kook Lee, Dong‐Chan Oh   +18 more
wiley   +1 more source

Harnessing Methyltransferase‐Guided Targeting for Sequence‐Specific Proximity Labeling of DNA

Angewandte Chemie, EarlyView.
A novel methyltransferase‐mediated approach leveraging rationally designed S‐adenosyl‐L‐methionine (SAM) analogues was developed to achieve sequence‐specific DNA labeling but in proximity to the natural transfer site, addressing key limitations of previously established methods, including ligand instability and methylation‐sensitive labeling.
Xiong Chen, Gang Wen, Niels Ooghe, Sergey Abakumov, Taoufik Rohand, Volker Leen, Peter Dedecker, Tanja Weil, Johan Hofkens   +8 more
wiley   +2 more sources

Mouse spermatocytes express CYP2E1 and respond to acrylamide exposure.

PLoS ONE, 2014
Metabolism of xenobiotics by cytochrome P450s (encoded by the CYP genes) often leads to bio-activation, producing reactive metabolites that interfere with cellular processes and cause DNA damage.
Belinda J Nixon, Aimee L Katen, Simone J Stanger, John E Schjenken, Brett Nixon, Shaun D Roman   +5 more
doaj   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

Advanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan, Yubo Zhang, Jingjing Li, Jianqing Zhu, Yuyang Lei, Yushi Hu, Zhenqiang Xin, Tianpei Xie, Jiang Zheng, Yuanyuan Lin, Jingjing Shen, Yiyi Cao, Xinyue You, Jing Xi, Jiaying Wu, Weiying Liu, Xinyu Zhang, Yuanting Zheng, David J. Lohman, Leming Shi, Wei Zhang   +20 more
wiley   +1 more source

Targeted H2S Delivery System Attenuates Blood‐Spinal Cord Barrier Disruption after Spinal Cord Injury by Reshaping the Ferritinophagy Pathway

Advanced Science, EarlyView.
The αvβ3‐mediated SPRC@MPDA‐RGD targets broken endothelial cells and controllably releases SPRC. CSE is then activated to produce endogenous H2S, which inhibits ferritinophagy. In brief, H2S inhibits autophagy by activating the PI3K/Akt/mTOR pathway, thereby suppressing the ferroptosis process mediated by NCOA4, and ultimately promoting the ...
Zhiheng Chen, Xinkai Pu, Ruiyang Li, Yuezhou Wu, Qirong Zhou, Jian Wang, Yuxuan Qian, Fengjie Lu, Jian‐Yuan Zhao, Zhida Su, Jiacan Su, Xiaofeng Lian   +11 more
wiley   +1 more source

Smoking, DNA Adducts and Number of Risk DNA Repair Alleles in Lung Cancer Cases, in Subjects with Benign Lung Diseases and in Controls

Journal of Nucleic Acids, 2010
Smoke constituents can induce DNA adducts that cause mutations and lead to lung cancer. We have analyzed DNA adducts and polymorphisms in two DNA repair genes, for example, XRCC1 Arg194Trp and Arg399Gln genes and XRCC3 Thr241Met gene, in 34 lung cancer ...
Marco Peluso, Armelle Munnia, Sara Piro, Alessandra Armillis, Marcello Ceppi, Giuseppe Matullo, Riccardo Puntoni   +6 more
doaj   +1 more source

Prenatal airborne polycyclic aromatic hydrocarbon exposure, LINE1 methylation and child development in a Chinese cohort

Environment International, 2017
Background: Polycyclic aromatic hydrocarbons (PAH) are carcinogenic, neurotoxic environmental pollutants generated during incomplete combustion of fossil fuel and other organic material. PAH exposure has been associated with adverse fetal development and
Joan Lee, Vrinda Kalia, Frederica Perera, Julie Herbstman, Tingyu Li, Jisheng Nie, L.R. Qu, Jie Yu, Deliang Tang   +8 more
doaj   +1 more source

Polycyclic Aromatic Hydrocarbons–Aromatic DNA Adducts in Cord Blood and Behavior Scores in New York City Children

Environmental Health Perspectives, 2011
Background: Airborne polycyclic aromatic hydrocarbons (PAH) are widespread urban pollutants that can bind to DNA to form PAH–DNA adducts. Prenatal PAH exposure measured by personal monitoring has been linked to cognitive deficits in childhood in a ...
F. Perera, Shuang Wang, J. Vishnevetsky, Bingzhi Zhang, K. J. Cole, D. Tang, V. Rauh, D. Phillips   +7 more
semanticscholar   +1 more source