Abstract
Introduction: Inflammation can be defined as a complex biological response that is produced by body tissues to harmful agents like pathogens, irritants, and damaged cells and thereby acts as a protective response incorporating immune cells, blood vessels, and molecular mediators. Histamine, serotonin, bradykinin, leukotrienes (LTB4), prostaglandins (PGE2), prostacyclins, reactive oxygen species, proinflammatory cytokines like IL-1, IL-11, TNF- anti-inflammatory cytokines like IL-4, IL-10, IL-11, IL-6 and IL-13, etc. all have different effects on both pro and anti-inflammatory mediators. Incorporation of combinatorial chemistry and computational studies have helped the researchers to design xanthones moieties with high selectivity that can serve as a lead compound and help develop potential compounds that can act as effective COX-2 inhibitors. The study aims to design and develop different series of substituted hydroxyxanthone derivatives with anti-inflammatory potential.
Methods: The partially purified synthetic xanthone derivatives were orally administered to the carrageenan induced paw oedemic rat models at the dose of 100 mg/kg, and their effect in controlling the degree of inflammation was measured at the time interval of 30 min, 1, 2, 3, 4 and 6 hrs. respectively. Further, these compounds were also subjected to modern analytical studies like UV, IR, NMR and mass spectrometry or their characterization.
Results: The results drawn out of the in silico, in vitro, in vivo and analytical studies concluded that the hydroxyxanthone derivatives can obstruct the enzyme COX-2 and produce anti-inflammatory action potentially.
Conclusion: With the aim to evaluate the compounds for their anti-inflammatory activity, it was observed that the newly designed xanthonic compounds also possess a safe toxicity margin and hence can be utilized by the researchers to develop hybrid xanthonic moieties that can specifically target the enzyme COX-2.
[http://dx.doi.org/10.15835/nsb346378]
[http://dx.doi.org/10.1021/jm00130a022] [PMID: 2571730]
[http://dx.doi.org/10.1016/j.jsps.2011.01.003] [PMID: 23960749]
[http://dx.doi.org/10.1016/S0031-9422(00)89727-7] [PMID: 7765428]
[PMID: 22518342]
[http://dx.doi.org/10.3181/00379727-111-27849] [PMID: 14001233]
[http://dx.doi.org/10.1016/j.ejmech.2009.04.011] [PMID: 19428155]
[http://dx.doi.org/10.1164/rccm.200909-1427SO] [PMID: 20167850]
[http://dx.doi.org/10.1183/09031936.06.00053805] [PMID: 16816350]
[http://dx.doi.org/10.1161/01.CIR.0000097109.90783.FC] [PMID: 14568895]
[http://dx.doi.org/10.1136/thorax.55.2.114] [PMID: 10639527]
[http://dx.doi.org/10.1016/S0272-6386(03)00353-6] [PMID: 12776273]
[http://dx.doi.org/10.1086/605578] [PMID: 19712036]
[http://dx.doi.org/10.1056/NEJMoa040967] [PMID: 15602020]
[http://dx.doi.org/10.1038/sj.jhh.1001785] [PMID: 15361891]
[http://dx.doi.org/10.1159/000126926] [PMID: 18421214]
[http://dx.doi.org/10.1016/j.trsl.2015.06.012] [PMID: 26173187]
[PMID: 19497250]
[http://dx.doi.org/10.1016/j.biopsych.2008.11.029] [PMID: 19150053]
[http://dx.doi.org/10.1056/NEJM200010193431602] [PMID: 11036119]
[http://dx.doi.org/10.1161/01.CIR.0000042700.48769.59] [PMID: 12515748]
[http://dx.doi.org/10.2215/CJN.03500412] [PMID: 23024164]
[http://dx.doi.org/10.1016/j.cclet.2014.03.046]
[http://dx.doi.org/10.1016/j.bmcl.2015.04.077] [PMID: 26048786]
[http://dx.doi.org/10.1016/j.bmcl.2012.12.010] [PMID: 23312949]