extensively drug-resistant

An antibiotic produced by Streptomyces fradiae.

GSK2556286 (GSK286) is an orally active inhibitor of Mycobacterium tuberculosis (M. tuberculosis), effective against multidrug-resistant (MDR), extensively drug-resistant (XDR), and drug-sensitive (DS) strains. It inhibits the growth of human macrophages with an IC50 value of 0.07 μM.

Fosfomycin sodium is a bactericidal, low-molecular weight, broad-spectrum antibiotic, with putative activity against several bacteria, including multidrug-resistant Gram-negative bacteria, by irreversibly inhibiting an early stage in cell wall synthesis.

Fosfomycin calcium (Phosphomycin calcium salt) is a blood-brain barrier penetrating, broad-spectrum antibiotic by irreversibly inhibiting an early stage in cell wall synthesis.

Mtb-IN-10 (Compound P15) is an Rv1625c Cya activator that influences the growth of Mycobacterium tuberculosis (Mtb) by modulating cAMP metabolism. It demonstrates an anti-tuberculosis activity with an EC50 of 1.96 µM in Mtb-infected macrophage models and achieves an oral bioavailability of 58.0% when administered orally to mice at 20 mg kg. Mtb-IN-10 potentially regulates intracellular signaling and disrupts cholesterol metabolism within Mtb, thereby inhibiting bacterial proliferation. It holds promise for tuberculosis (TB) research, particularly targeting multidrug-resistant (MDR-TB) and extensively drug-resistant (XDR-TB) strains of Mtb.

Collinin is a coumarin that has been found in Z. schinifolium and has diverse biological activities.1,2,3,4 It is active against drug-susceptible and -resistant strains of M. tuberculosis (MIC50s = 3.13-6.25 μg/ml).1 Collinin inhibits LPS-induced nitric oxide (NO) production (IC50 = 5.9 μM) and reduces COX-2 protein levels in RAW 264.7 cells.2 It completely inhibits aggregation of isolated rabbit platelets induced by arachidonic acid , collagen, or platelet activating factor (PAF) when used at a concentration of 100 μM.3 Dietary administration of collinin (0.05% w/w) reduces the number of mice with tumors and the number of tumors per mouse in a mouse model of colitis-related carcinogenesis.4 |1. Kim, S., Seo, H., Al Mahmud, H., et al. In vitro activity of collinin isolated from the leaves of Zanthoxylum schinifolium against multidrug- and extensively drug-resistant Mycobacterium tuberculosis. Phytomedicine 46, 104-110 (2018).|2. Nguyen, P.-H., Zhao, B.T., Kim, O., et al. Anti-inflammatory terpenylated coumarins from the leaves of Zanthoxylum schinifolium with α-glucosidase inhibitory activity. J. Nat. Med. 70(2), 276-281 (2016).|3. I.S., C., Lin, Y.C., Tsai, I.L., et al. Coumarins and anti-platelet aggregation constituents from Zanthoxylum schinifolium. Phytochemistry 39(5), 1091-1097 (1995).|4. Kohno, H., Suzuki, R., Curini, M., et al. Dietary administration with prenyloxycoumarins, auraptene and collinin, inhibits colitis-related colon carcinogenesis in mice. Int. J. Cancer 118(12), 2936-2942 (2006).