5-Nitro-1,10-phenanthroline (5-NP), is a o-Phenanthroline derivative, as a mediator of glucose oxidase (GOX) with antituberculous activity. 5-Nitro-1,10-phenanthroline can be applied as redox mediators for oxidases and is suitable for the development of reagent-less biosensors and biofuel cells[1][1].
5-Nitro-1,10-phenanthroline (25 μM; 24 h) kills naturally resistant intracellular bacteria by inducing autophagy in THP-1 macrophages[2].
5-Nitro-1,10-phenanthroline (1x, 5x, 20x or 50x MIC, MIC=0.78 μM; 1 h) also modulates the host machinery to kill intracellular pathogens by inhibiting mycolic acid biosynthesis of Mtb[2].
Cell Viability Assay[2]
| Cell Line: | Mtb H37Rv, M. bovis BCG and M. bovis BCG-5NP resistant strain |
| Concentration: | 0-12.5 μM |
| Incubation Time: | 24 hours |
| Result: | Inhibited pathogens with MIC99 values of 0.78 μM (Mtb H37Rv), 0.78 μM (M. bovis BCG), and >12.5 μM (M. bovis BCG-5NP), respectively. |
[1]. Oztekin Y, et al. 1,10-Phenanthroline derivatives as mediators for glucose oxidase. Biosens Bioelectron. 2010 Sep 15;26(1):267-70.
[2]. Kidwai S, et al. Dual Mechanism of Action of 5-Nitro-1,10-Phenanthroline against Mycobacterium tuberculosis. Antimicrob Agents Chemother. 2017 Oct 24;61(11):e00969-17.