Results 91 to 100 of about 2,259,235 (294)

Pyrazole‐Derived Antibacterial Compounds Effectively Treat Methicillin‐Resistant Staphylococcus Aureus Infections by Inhibiting Aspartate Transcarbamoylase

Advanced Science, EarlyView.
This study unveils a novel antibacterial mechanism against MRSA, in which the compound Py‐27 selectively targets and inhibits aspartate transcarbamoylase (ATCase), a key enzyme in pyrimidine synthesis. This inhibition disrupts DNA replication, induces oxidative damage, leading to potent bactericidal activity.
Xiaorong Yang, Xinyuan Cao, Lixia Dai, Feng Yang, Jing Wang, Yudong Ma, Tong Bu, Zile Gong, Xueyan Liu, Changcai Bai, Xiaolou Miao, Xiaofei Shang   +11 more
wiley   +1 more source

Evolution of malaria virulence in cross-generation transmission through selective immune pressure [PDF]

, 2007
Theoretical arguments and some mathematical models of host-parasite coevolution (e.g. [1- 6]) suggest host immunity as the driving source for the evolution of parasite virulence.
David E. Gurarie
core  

Programmable Encapsulation Enables On‐Demand Proliferation of Therapeutic Bacteria for Potent Cancer Immunotherapy

Advanced Science, EarlyView.
A programmable encapsulation technology is developed to reduce bacterial immunogenicity and proliferation after systemic administration. The cross‐linked polymer networks around individual bacteria enable immunogenic shielding and permit selective proliferation in tumors, allowing the bacteria to convert tumor‐accumulated ammonia into L‐arginine and ...
Jianhui Yang, Ao Peng, Shuaiqiang Li, Yaning Huang, Jian Yan, Leyuan Wang, Zhihui Zhu, Fei‐Long Liu, Erbao Bian, Yang Liu, Dasheng Tian, Fenghe Li, Qi Liu   +12 more
wiley   +1 more source

Orientin mediates protection against MRSA-induced pneumonia by inhibiting Sortase A

Virulence, 2021
Drug-resistant pathogenic Staphylococcus aureus (S. aureus) has severely threatened human health and arouses widespread concern. Sortase A (SrtA) is an essential virulence factor of S.
Li Wang, Shisong Jing, Han Qu, Kai Wang, Yajing Jin, Ying Ding, Lin Yang, Hangqian Yu, Yan Shi, Qianxue Li, Dacheng Wang   +10 more
doaj   +1 more source

Evolutionary trade-offs underlie the multi-faceted virulence of Staphylococcus aureus [PDF]

, 2015
Date of Acceptance: 20/07/2015Bacterial virulence is a multifaceted trait where the interactions between pathogen and host factors affect the severity and outcome of the infection. Toxin secretion is central to the biology of many bacterial pathogens and
Williams, Barnabas, Uhlemann, Anne-Catrin, Edward Feil, Recker, Mario, Maisem Laabei (311431), Lowy, FD, Clarke, SR, Janina Dordel (250569), Janina Dordel, Votintseva, Antonina A., Lowy, Franklin D., Votintseva, AA, Austin, ED, Wilson, Daniel J, Bowden, Rory, Wilson, Daniel J., Daniel J. Wilson (194149), Matthew Holden, Crook, Derrick W., Dordel, Janina, Derrick W Crook, Maho Yokoyama (791513), Thorpe, Harry A, Holden, Matthew, Matthew Holden (791517), Sharon J. Peacock (35782), Derrick W. Crook (145636), Austin, Eloise D, Williams, B, Mario Recker (88496), Sharon J Peacock, Eloise D Austin, Perkins, Mark, Votintseva, Antonina A, Barnabas Williams (791515), Recker, M, Mario Recker, Franklin D Lowy, Young, Bernadette C, Khadija Ouadi, Ouadi, Khadija, Eloise D. Austin (791512), Rory Bowden (179995), Crook, Derrick, Wilson, DJ, Barnabas Williams, Bernadette C Young, Maho Yokoyama, Yokoyama, Maho, Clark, Stephen Robert, Harry A Thorpe, Franklin D. Lowy (299074), Uhlemann, AC, Feil, E, Edward Feil (270047), Anne-Catrin Uhlemann, Stephen R Clarke, Ouadi, K, Antonina A Votintseva, Clarke, Stephen R, Peacock, Sharon J., Mark Perkins, Peacock, SJ, Laabei, M, Ruth C. Massey (174217), Maisem Laabei, Antonina A. Votintseva (791518), Harry A. Thorpe (791514), Austin, Eloise D., Young, BC, Peacock, Sharon J, Massey, Ruth C., Mark Perkins (254177), Bernadette C. Young (408943), Massey, RC, Crook, DW, Thorpe, HA, Clarke, Stephen R., Feil, Edward, Anne-Catrin Uhlemann (299063), Wilson, Daniel, Crook, Derrick W, Laabei, Maisem, Khadija Ouadi (598087), Perkins, M, Lowy, Franklin D, Daniel J Wilson, Rory Bowden, Stephen R. Clarke (791516), Bowden, R, Dordel, J, Massey, Ruth C, Young, Bernadette C., Thorpe, Harry A., Yokoyama, M, Holden, M, Ruth C Massey   +96 more
core   +1 more source

Integrated Single‐Cell and TCR Profiling Reveals Protection‐Associated CD8+ T Cell Subsets Linked to Viral Control in PRRSV

Advanced Science, EarlyView.
PRRSV vaccine‐mediated protection is associated with clonally expanded cytotoxic CD8+ T cell subsets driven by viral structural proteins and supported by innate TLR4/TLR8 signaling and CD4+ T cell help, whereas non‐protective responses are characterized by dysfunctional exhausted‐like CD8+ T cells linked to poor viral control.
Can Kong, Siang Chen, Maolin Li, Meng Wang, Hailin Zhang, Bolun Zhou, Zhenhua Xie, Chen Wang, Peng Gao, Jianjun Luo, Hanchun Yang, Runsheng Chen, Dongdong Zhang, Jie Li, Jun Han   +14 more
wiley   +1 more source

Anti-biofilm and anti-virulence effects of zerumbone against Acinetobacter baumannii

Microbiology, 2020
Acinetobacter baumannii is a multidrug-resistant opportunistic pathogen that affects patients with a compromised immune system and is becoming increasingly important as a hospital-derived infection. This pathogen is difficult to treat owing to its
Hye-Rim Kim, Da-Seul Shin, Hye-In Jang, Yong-Bin Eom   +3 more
openaire   +2 more sources

Characterization of natural product inhibitors of quorum sensing reveals competitive inhibition of Pseudomonas aeruginosa RhlR by ortho-vanillin

Microbiology Spectrum
Quorum sensing (QS) is a cell-cell signaling system that enables bacteria to coordinate population density-dependent changes in behavior. This chemical communication pathway is mediated by diffusible N-acyl L-homoserine lactone signals and cytoplasmic ...
Kathryn E. Woods, Sana Akhter, Blanca Rodriguez, Kade A. Townsend, Nathan Smith, Ben Smith, Alice Wambua, Vaughn Craddock, Rhea G. Abisado-Duque, Emma E. Santa, Daniel E. Manson, Berl R. Oakley, Lynn E. Hancock, Yinglong Miao, Helen E. Blackwell, Josephine R. Chandler   +15 more
doaj   +1 more source

Linoleic acid acts as a potential anti-virulence agent in Klebsiella pneumoniae. [PDF]

Germs
The rise in antimicrobial resistance among bacterial pathogens is a global concern, and anti-virulence therapy may be an alternative strategy to address the issue. Multidrug resistant (MDR) hypervirulent Klebsiella pneumoniae (HvKp) is known to be associated with healthcare associated infections.
Wangkheimayum J, Banerjee T, Baishya S, Sharma S, Choudhury MD, Laskar MA, Bhattacharjee A.   +6 more
europepmc   +3 more sources

The Natural Product Corramycin Acts as a DNA Gyrase Poison and Overcomes Fluoroquinolone Resistance in Mycobacterium tuberculosis

Advanced Science, EarlyView.
Corramycin, a myxobacterial natural product antibiotic, exhibits potent bactericidal activity against multidrug‐resistant Mycobacterium tuberculosis. The compound hijacks bacterial transporters such as BacA and OppABCD to enter the cell and inhibits DNA synthesis through a previously unrecognized mode of DNA gyrase poisoning, locking the enzyme in an ...
Franziska Fries, Jennifer Herrmann, Michael Dal Molin, Yaëlle Wormser, Timo Risch, Yunsheng Gao, Gareth Prosser, Francesca Gubellini, Ariel Mechaly, Joshua B. Wallach, Anthony Castro, Arka Banerjee, Sari Rasheed, Alexander Horn, Mathias Müsken, Michael Kurz, Lindsay Sonnenkalb, Viola Dreyer, Stefan Niemann, Sönke Andres, Dirk Schnappinger, Uli Kazmaier, Norbert Reiling, Rolf Müller, Jan Rybniker, Stéphanie Petrella   +25 more
wiley   +1 more source