Results 111 to 120 of about 71,112 (299)

Adjuvant Activity and Resistance-Modifying Capacity of a Novel Heterocyclic Hydrazone Derived from the Drug Hydralazine in NorA and MepA Efflux Pumps of Staphylococcus aureus

Drugs and Drug Candidates
Background/Objectives: Hydrazones are organic compounds with the general structure R2C=NNHR1, distinguished by their versatility and modifiability, and are widely used in various applications due to their physicochemical and biological properties.
Milena Oliveira Andrade Moreira, Karla Susanna Tavares Grangeiro Belém, Janaina Esmeraldo Rocha, Davi Ramalho Furtado, Gildenia Alves de Araújo, Ana Joyce Morais Bento, Jessica Bezerra Maciel, Jesyka Macêdo Guedes, Jaiza Maria Lima Dias, Henrique Douglas Melo Coutinho, Francisco das Chagas Lima Pinto, Emmanuel Silva Marinho, Marcia Machado Marinho, Alexandre Magno Rodrigues Teixeira, Walter José Peláez, Hélcio S. dos Santos   +15 more
doaj   +1 more source

Tyrosinase Driven‐Intracellular Polymerization of a Porphyrin Derivative Induced Immunogenic Death of Melanoma Cells and Strengthened Photodynamic Therapy

Advanced Science, EarlyView.
This study uses tyrosinase, which is highly expressed in melanoma, to drive porphyrins to polymerize and self‐assemble within tumor cells to form retented microstructures. This process induces immunogenic death and activates immune responses (M1 macrophages, dendritic cells, CD8+T cells), turning “cold” tumors into “hot” tumors.
Mian Tang, Junteng Qiu, Yunfeng Lu, Yahui Song, Xinyu Zhou, Tianshun Duan, Xuanqi Peng, Caixia Yin, Cheng Gao, Ruibing Wang   +9 more
wiley   +1 more source

An Investigation of Bacterial Efflux Pump Inhibitors

, 2022
Multidrug resistance in bacteria, defined as the ability of a bacterial strain to resist the killing effects of more than one antibiotic, represents a major threat to global healthcare.
Moses, Emilie Alice
core  

Intestinal Source Control of Lipid Metabolism by Enzyme‐Probiotic Encapsulated, Spatiotemporal Crosslinked, and Small Intestine‐Adhesive Hydrogel Microspheres

Advanced Science, EarlyView.
A thiol‐modified alginate hydrogel microsphere‐encapsulated enzyme‐probiotic biohybrid (AKK‐COD) system has been developed to address the spatiotemporal delivery and colonization challenges of small intestine‐targeted probiotic for lipid metabolism regulation. The system exerts sequential functions of intragastric protection, small intestinal adhesion,
Xiaolin Wu, Weiwen Liang, Siqi He, Guangyuan Chen, Hui Zhou, Xinglong Wang, Yifei Li, Dingcai Wu, Bingna Zheng, Ruoxu Dou, Rongkang Huang   +10 more
wiley   +1 more source

Effects of efflux pumps on antifungal activity of chitosan against Candida albicans

Journal of Oral Microbiology
Background Antifungal resistance is a major problem, commonly caused by drug-efflux pump overexpression. To evaluate if chitosan could be effective in drug-resistant Candida infections, we investigated the effects of efflux pumps on antifungal activity ...
Sureeporn Muangsawat, Patcharaporn Chaiyosang, Patrawee Sinkanarak, Juthamas Sukted, Panida Thanyasrisung, Oranart Matangkasombut   +5 more
doaj   +1 more source

A Viscous DES‐AAV‐Foxo1 Delivery System With High Transfection Efficiency for the Treatment of Corneal Endothelial Dysfunction by Restoring Mitochondria‐ER Contacts

Advanced Science, EarlyView.
High glucose triggers corneal endothelial dysfunction by impairing FOXO1‐mediated ITPR1 transcription, leading to disrupted mitochondria‐associated membrane (MAM) integrity and defective ER‐to‐mitochondria Ca2+ transfer. This study develops an innovative viscous DES‐AAV‐Foxo1 delivery system with enhanced transfection efficiency. This non‐invasive gene
Hongran Zhao, Xiaoyu Li, Hongwei Wang, Zongyi Li, Qun Wang, Yangyang Zhang, Xu Jing, Xia Qi, Qingjun Zhou, Shengqian Dou, Lixin Xie   +10 more
wiley   +1 more source

Drug‐Induced Cuproptosis Defines the Therapeutic Window of Celecoxib in Intervertebral Disc Degeneration via the HSP90‐RBX1 Axis

Advanced Science, EarlyView.
This study reveals the dual role of celecoxib in intervertebral disc degeneration. While low concentrations are protective, high concentrations induce toxicity by upregulating HSP90, which synergizes with USP15 to deubiquitinate and stabilize RBX1. This leads to degradation of COMMD1/ATP7B, copper dyshomeostasis, and ultimately, cuproptosis.
Youfeng Guo, Hongju Xiao, Shenghao Ba, Yu Zhou, Bijun Wang, Bin Yu, Yufeng Huang, Haihong Zhao, Zhefan Stephen Chen, Na Shen, Zhaoyu Ba, Desheng Wu   +11 more
wiley   +1 more source

CD44‐Targeting Hydroxyapatite Nanoparticles (HAP) Induce Mitochondrial Dysfunction‐Driven PANoptosis and Immunogenic Cell Death (ICD) via Ca Overload in Colorectal Cancer

Advanced Science, EarlyView.
ABSTRACT Colorectal cancer (CRC) remains therapeutically challenging due to high metastasis, recurrence, and immunotherapy resistance driven by tumor microenvironment‐mediated immune evasion. Immunogenic cell death (ICD) offers a promising strategy to reshape the immune microenvironment, yet existing ICD inducers suffer from poor targeting efficiency ...
Yao Xiao, Yuxuan Yang, Haosen Qiu, Jia Yang, Hao Liang, Zhaojun Jiang, Xiao Tong, Yongying Li, Qunfeng Huang, Jiaming Wu, Tian Lin, Jiang Yu, Min Liang   +12 more
wiley   +1 more source

A Catalytic Osmium Redox Couple Collapses Cancer Redox Balance

Advanced Science, EarlyView.
A stable Os(III)/Os(IV) redox couple is developed to disrupt the tumor cell redox balance by concurrently catalyzing ROS generation and GSH depletion. Osmium‐treated cells exhibit multiple cell death pathways, including apoptosis, ferroptosis, and immunogenic cell death.
Wan‐Qiong Huang, Tao Huang, Yiming Hao, Gui‐Feng Huang, Yi‐Lang Yan, Xin Fang, Ying Chen, Xiao‐Long Wei, Wai‐Lun Man, Wen‐Xiu Ni   +9 more
wiley   +1 more source

Reviving Antibiotics: Efflux Pump Inhibitors That Interact with AcrA, a Membrane Fusion Protein of the AcrAB-TolC Multidrug Efflux Pump

, 2016
Antibiotic resistance is a major threat to human welfare. Inhibitors of multidrug efflux pumps (EPIs) are promising alternative therapeutics that could revive activities of antibiotics and reduce bacterial virulence. Identification of new druggable sites
Valentin V. Rybenkov (501513), Keith M. Haynes (1689241), Narges Abdali (468199), Jerry M. Parks (1298193), John K. Walker (2309770), Jeremy C. Smith (1622119), Helen I. Zgurskaya (3093648), David Wolloscheck (3320145), Julie L. Chaney (1305849), Jerome Baudry (442664), Adam T. Green (3320142)   +10 more
core   +1 more source