Preterramide C is a fungal metabolite that has been found inA. terreus.1It is active againstS. aureus(MIC = 52.4 μM) but notE. aerogenes,P. aeruginosa, orC. albicans(MICs = >100 μM for all).2Preterramide C inhibits the growth of L5178Y mouse lymphoma cells with an IC50value of 0.1 μg/ml.3It also inhibits nitric oxide (NO) production induced by LPS in RAW 264.7 cells (IC50= 5.48 μM).
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).
2,4,6-Trichlorol-3-methyl-5-methoxy-phenol 1-O-β-d-glucopyranosyl-(1 → 6)-β-d-glucopyranoside is a chlorophenyl glycoside that is commonly found in the bulbs of Lilium brownie var. viridulum. This compound has been observed to exhibit a weak inhibition of NO production in LPS-stimulated RAW 264.7 cells.
β-Chamigrenal has anti-inflammatory activity, it has inhibitory effects on lipopolysaccharide-induced nitric oxide and prostaglandin E2 production in RAW 264.7 macrophages. Chamigrenal shows platelet-activating factor antagonistic activity and the IC(50)