Abstract
Background: Cisplatin is a chemotherapeutic drug used to treat testicular cancer that induces testicular toxicity. This study aimed to investigate the possible role of androgens, androgen receptor, and organic cation transporter 2 (OCT2) in the protective effects of curcumin on cisplatininduced testicular toxicity.
Methods: Thirty male Wistar rats were divided into five groups: 1- control (normal saline, 0.5 ml ip, daily for 10 consecutive days); 2- cisplatin (10 mg/kg ip, single dose at the first day); 3- cisplatin + curcumin (10 mg/kg ip, dissolved in 5% DMSO, daily for 10 consecutive days); 4- cisplatin + vehicle (DMSO 5%, 0.3 ml ip); and 5- curcumin (10 mg/kg ip). At the end of the study, a blood sample was obtained for testosterone measurement. The left testis was kept at -80 to measure androgen receptor (AR) and type 2 organic cation transporter (OCT2) gene expression and the right testis were kept in 10% formalin for histological analysis.
Results: Cisplatin significantly decreased serum testosterone, declined testis AR gene expression, and increased OCT2 gene expression in testis (p<0.01). Curcumin treatment significantly prevented these alterations in testosterone and gene expressions (p<0.01). Moreover, curcumin significantly reversed the cisplatin-induced kidney tissue injury and increased spermatid and spermatozoa.
Conclusion: It is concluded that the ameliorative effect of curcumin in cisplatin-induced reproductive disorders was due to the modulation of testosterone and androgen receptors.
Keywords: Cisplatin, androgen receptors, organic cation transporter, curcumin, testis, OCT2 gene.
Graphical Abstract
[http://dx.doi.org/10.3892/or.10.6.1663] [PMID: 14534679]
[http://dx.doi.org/10.1007/PL00000762] [PMID: 11028915]
[http://dx.doi.org/10.1016/j.urology.2009.05.024] [PMID: 19616287]
[http://dx.doi.org/10.1111/j.1600-079X.2006.00327.x] [PMID: 16842537]
[http://dx.doi.org/10.1016/j.tips.2008.11.002] [PMID: 19110321]
[http://dx.doi.org/10.1016/j.etp.2010.05.004] [PMID: 20627677]
[http://dx.doi.org/10.3109/13880209.2012.716854] [PMID: 23116244]
[http://dx.doi.org/10.1177/0748233711407242] [PMID: 21632575]
[http://dx.doi.org/ 10.12691/jcrt-2-3-4]
[http://dx.doi.org/10.1093/humrep/dep058] [PMID: 19279034]
[http://dx.doi.org/10.1210/me.2002-0070] [PMID: 12351684]
[http://dx.doi.org/10.1016/S0960-0760(03)00005-0] [PMID: 12648523]
[http://dx.doi.org/10.1046/j.1365-2605.2003.00369.x] [PMID: 12534933]
[http://dx.doi.org/10.1210/endo.135.3.8070367] [PMID: 8070367]
[http://dx.doi.org/10.1095/biolreprod60.2.461] [PMID: 9916015]
[http://dx.doi.org/10.1016/j.jgr.2015.08.005] [PMID: 27158240]
[http://dx.doi.org/10.1016/j.jff.2015.10.020]
[http://dx.doi.org/10.1016/j.envres.2005.11.003] [PMID: 16380112]
[http://dx.doi.org/10.2164/jandrol.108.004911] [PMID: 18676361]
[http://dx.doi.org/10.3892/ijo.21.4.825] [PMID: 12239622]
[http://dx.doi.org/10.2174/187152009789124655]
[http://dx.doi.org/10.1124/dmd.104.001024] [PMID: 15494472]
[http://dx.doi.org/10.4161/21565562.2014.979653] [PMID: 26413398]
[http://dx.doi.org/10.1021/mp070023l] [PMID: 17616214]
[http://dx.doi.org/10.1124/dmd.108.020826] [PMID: 18490433]
[PMID: 15611578]
[http://dx.doi.org/10.1016/j.mrgentox.2004.08.010] [PMID: 15507376]
[http://dx.doi.org/10.1016/j.urology.2003.08.029] [PMID: 14751366]
[http://dx.doi.org/10.1007/s00280-011-1692-y] [PMID: 21681572]
[http://dx.doi.org/10.1016/j.fertnstert.2007.04.059] [PMID: 17681317]
[http://dx.doi.org/10.1055/s-0029-1211755] [PMID: 9285209]
[http://dx.doi.org/10.1677/joe.0.1560043] [PMID: 9496232]
[http://dx.doi.org/10.1095/biolreprod60.5.1257] [PMID: 10208993]
[http://dx.doi.org/10.1016/S0303-7207(02)00369-6] [PMID: 12573815]
[http://dx.doi.org/10.1002/mpo.2950240202] [PMID: 7990766]
[http://dx.doi.org/10.1016/0092-8674(94)90212-7 ] [PMID: 7910522]