Abstract
Background: Leishmaniasis, caused by the Leishmania parasite, is one of the most important tropical neglected diseases. The urgent search for effective, inexpensive, and preferably herbal anti-leishmanial agents, is needed.
Objective: Curcumin is a natural polyphenolic compound derived from turmeric that is well known for its antioxidant, anti-inflammatory, anti-tumor, and anti-cancer activity.
Methods: The present work evaluates the anti-leishmanial [Leishmania major] activity of curcumin. The infected PBMCs were treated with curcumin. The ROS level at 6, 12, 24 h and gene expression levels at 24, 48, and 72 h of PBMCs after treatment with curcumin were determined.
Results: Based on the results, the curcumin concentrations of 268 μM [24 h] and 181.2 μM [72 h] were defined as IC50 against L. major promastigotes. Treatment of L. major infected-peripheral blood mononuclear cells [PBMCs] with IC50 concentrations of curcumin, depending on exposure time, significantly induced the reactive oxygen species [ROS] generation and increased the expression levels of interferongamma [IFN-γ], tumor necrosis factor-alpha [TNF-α], and nitric oxide synthase [iNOS] genes.
Conclusion: These findings suggest the potential of curcumin against Leishmaniasis.
Keywords: Curcumin, gene expression, Leishmania major, PBMCs, tumor necrosis factor, interferon gamma.
Graphical Abstract
[PMID: 22347232]
[http://dx.doi.org/10.1016/j.actatropica.2017.04.022] [PMID: 28454881]
[http://dx.doi.org/10.1016/j.ccr.2010.12.028]
[http://dx.doi.org/10.1080/20477724.2020.1754655] [PMID: 32339079]
[http://dx.doi.org/10.1093/qjmed/hct116]
[PMID: 27175144]
[http://dx.doi.org/10.1038/nrmicro2608] [PMID: 21747391]
[http://dx.doi.org/10.1016/j.imlet.2005.06.004] [PMID: 16083969]
[http://dx.doi.org/10.1007/s12026-007-8012-y] [PMID: 18040886]
[http://dx.doi.org/10.1128/IAI.70.8.4638-4642.2002] [PMID: 12117977]
[http://dx.doi.org/10.6026/97320630005320] [PMID: 21383918]
[http://dx.doi.org/10.3347/kjp.2011.49.1.17] [PMID: 21461264]
[http://dx.doi.org/10.1016/j.exppara.2013.07.004] [PMID: 23872452]
[PMID: 28127339]
[http://dx.doi.org/10.1007/s11101-014-9367-z]
[http://dx.doi.org/10.1007/s11414-013-9386-3] [PMID: 24464179]
[http://dx.doi.org/10.1080/13813450802033958] [PMID: 18484280]
[http://dx.doi.org/10.1016/j.vetpar.2017.02.011] [PMID: 28288756]
[http://dx.doi.org/10.1016/j.tifs.2018.01.016]
[http://dx.doi.org/10.1016/j.bbrc.2004.11.051] [PMID: 15582601]
[http://dx.doi.org/10.1196/annals.1352.010] [PMID: 16387689]
[http://dx.doi.org/10.1016/j.ejmech.2019.07.015] [PMID: 31404861]
[http://dx.doi.org/10.1080/10715760310001660259] [PMID: 15190932]
[http://dx.doi.org/10.1016/j.redox.2013.09.003] [PMID: 24191240]
[http://dx.doi.org/10.1016/S0169-4758(99)01431-3] [PMID: 10322351]
[PMID: 24379060]
[http://dx.doi.org/10.3389/fvets.2018.00333] [PMID: 30687723]
[http://dx.doi.org/10.1016/S0140-6736(00)02490-9] [PMID: 10963212]
[http://dx.doi.org/10.1016/j.actatropica.2006.03.005] [PMID: 16678115]
[http://dx.doi.org/10.2174/1871526520666200525013458]
[http://dx.doi.org/10.1080/10826068.2021.1885045] [PMID: 34060984]
[http://dx.doi.org/10.1248/bpb.25.131] [PMID: 11824543]
[http://dx.doi.org/10.1248/bpb.25.386] [PMID: 11913540]
[http://dx.doi.org/10.1007/s10495-008-0224-7] [PMID: 18506627]
[http://dx.doi.org/10.1007/s00436-005-1323-9] [PMID: 15772867]
[http://dx.doi.org/10.3389/fcimb.2021.774899] [PMID: 34926321]
[http://dx.doi.org/10.1016/j.exppara.2009.02.001] [PMID: 19422069]
[http://dx.doi.org/10.1016/j.intimp.2011.08.002] [PMID: 21875692]
[http://dx.doi.org/10.1016/j.bmc.2005.07.012] [PMID: 16143535]