Results 71 to 80 of about 305,776 (233)

Phenotypic and genomic analysis reveals Riemerella anatipestifer as the potential reservoir of tet(X) variants

Journal of Antimicrobial Chemotherapy, 2021
Abstract Background Tigecycline is regarded as one of the last-resort antimicrobials clinically. Emergence of plasmid-mediated tet(X) undermines such an important drug. However, the origins of tet(X) remain largely unexplored. Methods
Ruichao Li, Yongjia Jiang, Kai Peng, Yanhong Wang, Mianzhi Wang, Yuan Liu, Zhiqiang Wang   +6 more
openaire   +2 more sources

Targeting PRKCN, an Essential Driver Orchestrating mTOR‐IRF4 Axis Independently of Kinase Activity, in Multiple Myeloma

Advanced Science, EarlyView.
Constitutive PRKCN expression is driven by super‐enhancers and modulated by NF‐κB signaling in multiple myeloma (MM). PRKCN activates mTORC1/2‐IRF4 signaling axis and favors tumor cell growth independently of its kinase activity. IRF4 reciprocally promotes PRKCN transcription, creating a feed‐forward loop.
Koukou Tang, Dongpeng Jiang, Peng Ke, Xiaosen Bian, Lili Zhang, Ying Zhang, Tingting Zhu, Weiwei Qu, Wenhui Qi, Yang Xu, Chengcheng Fu, Depei Wu, Jianhong Chu   +12 more
wiley   +1 more source

Eicosapentaenoic acid induces DNA demethylation in carcinoma cells through a TET1-dependent mechanism [PDF]

, 2018
In cancer cells, global genomic hypomethylation is found together with localized hypermethylation of CpG islands within the promoters and regulatory regions of silenced tumor suppressor genes.
Billi, Monia, Cannarile, Lorenza, Ceccarelli, Veronica, Grignani, Francesco, Ottini, Laura, Riccardi, Carlo, Ronchetti, Simona, Talesa, Vincenzo Nicola, Valentini, Virginia, Vecchini, Alba   +9 more
core   +1 more source

Addressing Oxygen Embrittlement in Additively Manufactured Titanium via Cu‐Mediated Interstitial Site Engineering

Advanced Science, EarlyView.
A novel “Cu‐mediated interstitial site engineering” strategy is introduced to thermodynamically stabilize hexagonal oxygen (hex‐O) configurations in oxygen‐containing titanium alloys. The hex‐O configuration activates multiple slip systems and enhances dislocation pinning via long‐range repulsion.
Xiaobin Lin, Xudong Rong, Jiachen Xie, Xinru Wang, Jianteng Wang, Zhihang Xu, Dongdong Zhao, Shiwei Pan, Feng Qian, Longlong Ma, Gang Sha, Xiang Zhang, Chunsheng Shi, Chunnian He, Naiqin Zhao   +14 more
wiley   +1 more source

Distribution and spread of tigecycline resistance gene tet(X4) in Escherichia coli from different sources

Frontiers in Cellular and Infection Microbiology
Tigecycline serves as a last-resort antimicrobial agent against severe infections caused by multidrug-resistant bacteria. Tet(X) and its numerous variants encoding flavin-dependent monooxygenase can confer resistance to tigecycline, with tet(X4) being ...
Xin-Yan Fan, Xin-Yan Fan, Yue Jiang, Yue Jiang, Han Wu, Han Wu, Jie Liu, Jie Liu, Qing-Yun Gu, Qing-Yun Gu, Zhen-Yu Wang, Zhen-Yu Wang, Lin Sun, Lin Sun, Xinan Jiao, Xinan Jiao, Qiuchun Li, Qiuchun Li, Jing Wang, Jing Wang   +19 more
doaj   +1 more source

Identification of Novel tet(X3) Variants Resistant To Tigecycline in Acinetobacter Species

Microbiology Spectrum, 2022
The emergence of the tet(X) gene is a severe challenge to global public health security, as clinical tigecycline resistance shows a rapidly rising trend. In this research, we identified two tigecycline-resistant Acinetobacter sp. strains containing seven
Yumeng Cheng, Yakun Li, Runhao Yu, Mingxiang Ma, Meng Yang, Hongbin Si   +5 more
doaj   +1 more source

A Metal‐Free Carbon Monoxide Prodrug Suppresses Metastasis of Pancreatic and Breast Cancer

Advanced Science, EarlyView.
A metal‐free carbon monoxide (CO) prodrug, CO‐116, delivers controlled systemic CO without inhalation. CO suppresses the HRG1–heme axis, reducing intracellular heme availability. Attenuation of this pathway inhibits metastatic progression in pancreatic and triple‐negative breast cancer models.
Tiantian Zhang, Xiang Chen, Xiaoxiao Yang, Muskan Gori, Rohit Kumar Varshnaya, Dongning Liu, Cheryl Zhang, Michelle Yi Qin Chen, Zhengming Chen, George Zhang, Erika Patel, Qiyue Mao, Tan A. Ince, Chalet Tan, Binghe Wang, Yi‐Chieh Nancy Du   +15 more
wiley   +1 more source

Metagenomic analysis of antimicrobial resistance in ducks, workers, and the environment in duck farms, southern China

Ecotoxicology and Environmental Safety, 2023
Duck farms are one of the important reservoirs of antimicrobial resistance genes (ARGs) that spread to humans and the environment. However, few studies have focused on the characteristics of antimicrobial profiles in duck farms.
Wenguang Xiong, Jintao Yang, Jiaxiong Zeng, Danyu Xiao, Cuihong Tong, Zhenling Zeng   +5 more
doaj   +1 more source

Glutamine Deprivation Triggers Tribbles Homolog 3 Dependent G‐Quadruplex Resolution to Maintain DNA Repair and Tumor Survival

Advanced Science, EarlyView.
Glutamine deprivation triggers transient DNA damage yet activates adaptive repair in hepatocellular carcinoma cells. We identify TRIB3 as a stress‐induced nuclear scaffold that associates with DDX5 and G‐quadruplex DNA atBRCA1 andRAD51AP1 promoters. TRIB3 loss increases G4 accumulation, suppresses HR gene transcription, elevates γ‐H2A.X, and sensitizes
Qiang Ji, Xuedan Sun, Zhangran Sun, Mengfan Li, Xinyu Cheng, Shuai Tian, Rick F. Thorne, Jinming Li, Guangzhi Liu, Mian Wu, Xiaoying Liu   +10 more
wiley   +1 more source

Effect of Pyrolysis on the Removal of Antibiotic Resistance Genes and Class I Integrons from Municipal Wastewater Biosolids [PDF]

, 2018
Wastewater biosolids represent a significant reservoir of antibiotic resistance genes (ARGs). While current biosolids treatment technologies can reduce ARG levels in residual wastewater biosolids, observed removal rates vary substantially.
Kappell, Anthony D., Kimbell, Lee, McNamara, Patrick J.   +2 more
core   +1 more source