Therapeutic effect of topical tamoxifen in murine cutaneous leishmaniasis caused by Leishmania major.

IF 4.1 2区 医学 Q2 MICROBIOLOGY
Antimicrobial Agents and Chemotherapy Pub Date : 2024-12-05 Epub Date: 2024-10-24 DOI:10.1128/aac.00358-24
Parastoo Hassani-Abharian, Seyedamirmehdi Hejazi Dehaghani, Zabihollah Shahmoradi, Seyed Hossein Hejazi
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引用次数: 0

Abstract

Iran is one of the endemic regions of cutaneous leishmaniasis (CL) caused by Leishmania major. There is no protective vaccine available against CL available, and the most effective strategy is a definitive treatment. Topical medications can be an excellent option for this purpose. Tamoxifen, a cancer control drug, has properties such as inducing cell apoptosis and anti-parasitic activity, which can be useful in controlling eukaryotic parasites such as Leishmania. The present study was conducted to investigate this theory in experimental CL caused by L. major. Forty female BALB/c mice aged 4 to 6 weeks were infected by injecting 1 × 106 L. major metacyclics (MRHO/IR/75/ER) in the base of the tail. After the appearance of Leishmania nodules, mice were divided into five test and control groups. Two drug formulations were used: tamoxifen 1% in ethanol and tamoxifen citrate ointment 0.1%. The effectiveness of each formula was evaluated by determining the mean size of the ulcers and parasite burden after a 28-day treatment period. Both formulations showed reduced ulcer mean sizes. However, only the tamoxifen citrate ointment group demonstrated a statistically significant reduction (P = 0.049). The parasite burden decreased by 40.83% for the ointment group and 33.67% for the ethanol solution. Other control groups showed lesser reductions. This study partially demonstrated the effectiveness of topical tamoxifen on CL lesions in a murine model. It can provide a basis for further research on the therapeutic effects of different topical tamoxifen formulations.

外用他莫昔芬对由大利什曼原虫引起的小鼠皮肤利什曼病的治疗效果。
伊朗是由大利什曼原虫引起的皮肤利什曼病(CL)的流行地区之一。目前还没有针对利什曼病的保护性疫苗,最有效的策略是进行明确的治疗。为此,外用药物是一个很好的选择。他莫昔芬是一种癌症控制药物,具有诱导细胞凋亡和抗寄生虫活性等特性,可用于控制利什曼原虫等真核寄生虫。本研究就是为了在大利什曼病引起的实验性 CL 中研究这一理论。通过在小鼠的尾根部注射 1 × 106 L. major metacyclics (MRHO/IR/75/ER),使 40 只 4 至 6 周龄的雌性 BALB/c 小鼠受到感染。出现利什曼原虫结节后,小鼠被分为五个试验组和对照组。试验组使用两种药物配方:1%的他莫昔芬乙醇溶液和 0.1%的枸橼酸他莫昔芬软膏。在 28 天的治疗期后,通过测定溃疡的平均大小和寄生虫的负担来评估每种配方的有效性。两种配方都显示溃疡平均面积有所缩小。不过,只有枸橼酸他莫昔芬软膏组的溃疡面积有显著减少(P = 0.049)。药膏组的寄生虫数量减少了 40.83%,乙醇溶液组减少了 33.67%。其他对照组的减少幅度较小。这项研究部分证明了在小鼠模型中外用他莫昔芬对 CL 病变的有效性。它为进一步研究不同他莫昔芬外用制剂的治疗效果提供了依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
10.00
自引率
8.20%
发文量
762
审稿时长
3 months
期刊介绍: Antimicrobial Agents and Chemotherapy (AAC) features interdisciplinary studies that build our understanding of the underlying mechanisms and therapeutic applications of antimicrobial and antiparasitic agents and chemotherapy.
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