López-Arencibia Atteneri, Bethencourt-Estrella Carlos J, Berenguer Diana, Domínguez-de-Barros Angélica, Alcover M Magdalena, Sessa Marcella, Halbaut Lyda, Fisa Roser, Calpena-Campmany Ana Cristina, Córdoba-Lanús A Elizabeth, Lorenzo-Morales Jacob, Riera Cristina, Piñero José E
Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
Consorcio Centro de Investigación Biomédica en Red M.P. de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28006 Madrid, Spain.
Pathogens. 2024 Aug 22;13(8):712. doi: 10.3390/pathogens13080712.
Cutaneous leishmaniasis (CL) poses a significant public health concern in endemic regions due to its increasing prevalence and substantial impact on affected individuals. This disease is primarily caused by the protozoa, which are transmitted through insect bites, and it manifests as a range of symptoms, from self-healing lesions to severe disfigurement. Current treatments, which often involve the parenteral administration of antimonials, face challenges such as poor compliance and adverse effects. This study investigates the efficacy of topical formulations containing meglumine antimoniate (MA) and amphotericin B (AmB), using Sepigel as an excipient, for treating CL. In the study, BALB/c mice infected with developed lesions at the injection site five weeks post-infection. Subsequently, the mice were divided into eight groups: untreated mice, mice treated orally with miltefosine, mice treated intraperitoneally with MA, and mice treated topically with 15%, 22.5%, and 30% MA-Sepigel, as well as those treated with AmB-Sepigel. Treatments were applied daily for two weeks, and the results revealed a significant reduction in lesion size and parasite burden following topical application, particularly with the AmB-Sepigel formulations and 30% MA-Sepigel. Additionally, Sepigel-based treatments demonstrated improved patient compliance and reduced toxicity compared to systemic therapies. These findings underscore the potential of Sepigel-based formulations as a promising alternative for CL treatment. They offer enhanced efficacy and tolerability, while reducing the systemic toxicity associated with conventional therapies.
皮肤利什曼病(CL)在流行地区是一个重大的公共卫生问题,因为其患病率不断上升,且对受影响个体有重大影响。这种疾病主要由原生动物引起,通过昆虫叮咬传播,表现出一系列症状,从自愈性病变到严重毁容。目前的治疗方法通常涉及肠胃外注射锑剂,面临着依从性差和不良反应等挑战。本研究调查了以Sepigel为辅料、含有葡甲胺锑酸盐(MA)和两性霉素B(AmB)的局部用制剂治疗CL的疗效。在该研究中,感染的BALB/c小鼠在感染后五周在注射部位出现病变。随后,将小鼠分为八组:未治疗的小鼠、口服米替福新治疗的小鼠、腹腔注射MA治疗的小鼠、局部用15%、22.5%和30%的MA-Sepigel治疗的小鼠,以及用AmB-Sepigel治疗的小鼠。每天进行治疗,持续两周,结果显示局部用药后病变大小和寄生虫负荷显著降低,尤其是AmB-Sepigel制剂和30%的MA-Sepigel。此外,与全身治疗相比,基于Sepigel的治疗显示出患者依从性提高和毒性降低。这些发现强调了基于Sepigel的制剂作为CL治疗有前景的替代方案的潜力。它们提供了更高的疗效和耐受性,同时降低了与传统疗法相关的全身毒性。
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