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  2. Discovery of antipsychotic loxapine derivatives against intracellular multidrug-resistant bacteria

Discovery of antipsychotic loxapine derivatives against intracellular multidrug-resistant bacteria

  • RSC Med Chem. 2022 Aug 11;13(11):1361-1366. doi: 10.1039/d2md00182a.
Hsueh-Chun Lin 1 Yi-Lun Wu 2 Cheng-Yun Hsu 1 Man-Yi Lin 2 Ling-Han Chen 1 Chung-Wai Shiau 2 Hao-Chieh Chiu 1 3
Affiliations

Affiliations

  • 1 Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University Taipei 10048 Taiwan hcchiu@ntu.edu.tw.
  • 2 Institute of Biopharmaceutical Sciences, National Yang Ming Chiao Tung University Taipei 11221 Taiwan cwshiau@nycu.edu.tw.
  • 3 Department of Laboratory Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University Taipei 10021 Taiwan.
Abstract

The emergence and spread of multidrug-resistant bacteria highlight the need for new Antibacterial interventions. A screening of 24 newly synthesized dibenzoxazepines identified a small molecule compound, SW14, with potent inhibitory activity against intracellular multidrug-resistant and fluoroquinolone-resistant strains of S. typhimurium in macrophages and epithelial cells. Moreover, intra-macrophagic Salmonella typhi, Yersinia enterocolitica, and Listeria monocytogenes and methicillin-resistant Staphylococcus aureus are also susceptible to SW14. Overall, our findings suggest that SW14 has a broad-spectrum activity against intracellular bacteria.

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