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Nature is a prolific producers of bioactive natural products with an array of biological activities and impact on human and animal health. But with great power comes great responsibility, and the organisms that produce a bioactive compound must be resistant to its biological effects to survive during production/accumulation. Microorganisms, particularly bacteria, have developed different strategies to prevent self-toxicity. Here, we review a few of the major mechanisms including the mechanism of resistance with a focus on self-resistant protein variants, target proteins that contain amino acid substitutions to reduce the binding of the bioactive natural product, and therefore its inhibitory effects are highlighted in depth. We also try to identify some future avenues of research and challenges that need to be addressed.
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http://dx.doi.org/10.1021/acschembio.8b00173 | DOI Listing |
Anal Chem
September 2025
Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States.
Tires are complex polymeric materials composed of rubber elastomers (both natural and synthetic), fillers, steel wire, textiles, and a range of antioxidant and curing systems. These constituents are distributed differently among the various tire parts, which are classified based on their function and proximity to the rim. This study presents a rapid and sensitive approach for the characterization of tire components using mild thermal desorption/pyrolysis (TDPy) coupled to direct analysis in real-time mass spectrometry (DART-MS).
View Article and Find Full Text PDFJCO Glob Oncol
May 2025
Department of Obstetrics and Gynaecology, Stanford University School of Medicine, Stanford, CA.
Purpose: Expanding high-risk human papillomavirus (HPV) vaccine coverage in resource-constrained settings is critical to bridging the cervical cancer gap and achieving the global action plan for elimination. Mobile health (mHealth) technology via short message services (SMS) has the potential to improve HPV vaccination uptake. The mHealth-HPVac study evaluated the effectiveness of mHealth interventions in increasing HPV vaccine uptake among mothers of unvaccinated girls aged 9-14 years in Lagos, Nigeria.
View Article and Find Full Text PDFOrg Lett
September 2025
State Key Laboratory of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Herein, we report that a novel and efficient bifunctional reagent, benzophenonoxime -(CF) thiocarbonate (BOST), is easily synthesized and successfully applied to the 1, ( ≥ 2)-trifluoromethylthioamination of alkenes under photocatalytic energy transfer conditions. This study not only achieves the radical trifluoromethylthioamination of olefins for the first time but also provides structurally important and diverse SCF-featured amino acid esters and amino nitriles that were previously inaccessible.
View Article and Find Full Text PDFChem Biodivers
September 2025
Key Lab of Natural Product Chemistry and Application at Universities of Education, Department of Xinjiang Uygur Autonomous Region, School of Chemistry and Chemical Engineering, Yili Normal University, Xinjiang, China.
The persistent threat posed by phytopathogenic fungi to agricultural systems underscores the critical need for novel fungicides. Here, we synthesized and characterized a series of novel acridospiroisoxazole derivatives (H1-H36) using H/C NMR and mass spectrometry. The absolute configuration of compound H23 was confirmed using single-crystal x-ray diffraction analysis.
View Article and Find Full Text PDFMicrob Genom
September 2025
National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan, ROC.
remains a leading respiratory pathogen for children and the elderly. In Taiwan, a national PCV13 catch-up vaccination programme for children began in March 2013. This study investigates the population structure and antimicrobial profiles of pneumococcal isolates in Taiwan from 2006 to 2022.
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