Results 41 to 50 of about 511,772 (244)

Evaluation of DNA damage induced by perfluorooctanoic acid using acellular, cellular, and in vivo comet assays

Zhongguo shipin weisheng zazhi, 2023
ObjectiveTo examine perfluorooctanoic acid （PFOA）-induced DNA damage using a combined in vivo and in vitro experiment.MethodsAcellular nuclear DNA damage was used as a model to test the damage induced by exposure to 0.00， 0.13， 0.25， and 0.50 mmol/L PFOA
WANG Qian, XU Tongguang, WANG Tianwei, CHEN Huihui, ZHANG Wenzhong   +4 more
doaj   +1 more source

Modification of comet-FISH technique by using temperature instead of chemical denaturation

MethodsX, 2014
Comet-FISH technique is an extension of commonly used comet assay. Its purpose is to determine whether primary DNA damage which comet assay detects occurred within a sequence of interest that is visualized by hybridization of fluorescent probe.
Marin Mladinic, Davor Zeljezic
doaj   +1 more source

Combination of lung ultrasound (a comet-tail sign) and N-terminal pro-brain natriuretic peptide in differentiating acute heart failure from chronic obstructive pulmonary disease and asthma as cause of acute dyspnea in prehospital emergency setting

Critical Care, 2011
IntroductionWe studied the diagnostic accuracy of bedside lung ultrasound (the presence of a comet-tail sign), N-terminal pro-brain natriuretic peptide (NT-proBNP) and clinical assessment (according to the modified Boston criteria) in differentiating ...
G. Prosen, P. Klemen, M. Strnad, S. Grmec   +3 more
semanticscholar   +1 more source

Prickle4 Drives Microenvironmental Remodeling and Resistance to Parp Inhibition in IDH‐Mutant Glioma

Advanced Science, EarlyView.
IDH‐mutant gliomas exhibit sensitivity to PARP inhibitors (PARPi) owing to oncometabolite 2‐HG‐induced DNA repair defects. PARPi treatment induces resistance by upregulating Prickle4, which promotes VEGF‐driven angiogenesis. Combining PARPi veliparib with anti‐angiogenic lenvatinib blocks this pathway, causing tumor regression and prolonged survival in
Ju Yang, Hua Yang, Yifan Yuan, Chenyang Zhang, Ziwei Fu, Yanyan Chen, Yinghong Xiong, Shuyu Chen, Kexin Ling, Ying Liu, Jason T. Huse, Bo Chen, Timothy A. Chan, Zengxin Qi, Zhao Zhang, Xiuping Liu, Yuxiang Wang   +16 more
wiley   +1 more source

CDH1 Orchestrates Anabolic Events to Promote Cell Cycle Initiation

Advanced Science, EarlyView.
Cell proliferation requires the integration of cell cycle and anabolic signals. G1‐phase regulator CDH1 coordinates anabolism through the CDH1‐VHL‐AARS2/HIF1α axis, while CDH1‐accumulated R5P is sensed by TKTL1 to facilitate CDH1 degradation and cell cycle initiation, constituting a CDH1‐centered regulatory circuit.
Yun‐Zi Mao, Jiao‐Jiao Zhang, Meng‐Qi You, Han Wang, Yan Lin, Yuan Fang, Hui‐Lu Zhang, Yuan‐Yuan Qu, Qian Zhou, Meng Wang, Gang Li, Zi‐Fan Guo, Meng Xu, Jie Liu, Peng‐Cheng Lin, Yi‐Yuan Yuan, Yu Kang, Shi‐Min Zhao, Wei Xu   +18 more
wiley   +1 more source

Standardizing electrophoresis conditions: how to eliminate a major source of error in the comet assay.

Frontiers in Genetics, 2015
In the alkaline comet assay, cells are embedded in agarose, lysed, and then subjected to further processing including electrophoresis at high pH (>13). We observed very large variations of mean comet tail lengths of cell samples from the same population ...
Gunnar Brunborg
doaj   +1 more source

Genetic and Functional Evidence Links Germline Biallelic Inactivating Variants in WWOX to Histological Mixed‐Type Thyroid Cancer

Advanced Science, EarlyView.
The role of germline WWOX loss‐of‐function variants in oncogenesis has remained poorly characterized. This study provides the first comprehensive genetic and functional evidence that such variants promote tumorigenesis through the disruption of multiple tumor‐suppressive mechanisms.
Xiaopeng Zhang, Jian Qi, Jialiang Wang, Zhipeng Wang, Yongguang Wang, Zongtao Hu, Ao Xu, Bo Hong, Hongzhi Wang   +8 more
wiley   +1 more source

Lactylation Enhances the Activity of Lactate Dehydrogenase A and Promotes the Chemoresistance to Cisplatin Through Facilitating DNA Nonhomologous End Junction in Lung Adenocarcinoma

Advanced Science, EarlyView.
Lactylation, linked to glycolysis, is poorly understood in regulation. It is found that LDHA is lactylated at Lys81/Lys318 by AARS1, boosting its activity and cellular lactylation via positive feedback in LUAD. Lactylation regulates NHEJ‐related proteins; their delactylation impairs NHEJ and increases cisplatin sensitivity, offering anticancer insights.
Jizhuo Li, Wenze Xun, Xijie Wang, Ruiguang Luo, Qifan Hu, Zhaocai Zhou, Jian Yuan, Yanan Wang, Xiaorui Wan, Tao Zhao, Tianyu Han, Jian‐Bin Wang   +11 more
wiley   +1 more source

Targeting WEE1 in ARID1A/TP53 Concurrent Mutant Colorectal Cancer by Exploiting RLoop Accumulation and DNA Repair Deficiencies

Advanced Science, EarlyView.
ARID1A, a SWI/SNF complex component, is frequently mutated in colorectal cancer (CRC). CRC with ARID1A/TP53 concurrent mutations shows marked sensitivity to WEE1 inhibition. ARID1A loss induces R‐loop‐mediated replication stress, impairs ATF3 transcription, and amplifies WEE1i‐induced DNA damage, suggesting a promising therapeutic vulnerability ...
Chi Zhang, Yanjing Zhu, Luoyan Ai, Jingyuan Wang, Shan Yu, Yichen Wang, Xiaojing Xu, Mengling Liu, Yiyi Yu, Mengxuan Zhu, Yutong Liu, Zhenghang Xu, Haojie Zhou, Huishan Li, Qihong Huang, Qing Liu, Ke Peng, Tianshu Liu   +17 more
wiley   +1 more source

Bimetallic Nanozyme Amplifier for Synergistic Ferroptosis‐Cuproptosis and Metabolic Reprogramming to Reshape Immunosuppressive Tumor Microenvironment

Advanced Science, EarlyView.
The Bimetallic Nanozyme Amplifier (PEG@AuCZ@CC) to maximize hydrogen peroxide production and reprogram tumor metabolism from glycolysis to oxidative phosphorylation. This shift enhances ferroptotic/cuproptotic signaling cascades and creates a glucose‐enriched but lactate‐depleted tumor microenvironment (TME), effectively overcoming immune tolerance in ...
Jianzhang Luo, Kunzhao Huang, Xiaoyuan Yi, Pei Lu, Huaying Xie, Wen Li, Qingyu Zeng, Feifei He, Duo Wang, Liyan Wang   +9 more
wiley   +1 more source