{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T06:20:37Z","timestamp":1783578037942,"version":"3.55.0"},"reference-count":52,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,8,1]],"date-time":"2025-08-01T00:00:00Z","timestamp":1754006400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gels"],"abstract":"<jats:p>Leishmaniasis is an infectious disease common in tropical and subtropical regions worldwide. This study aimed to develop a topical meglumine antimoniate gel (MA-gel) for the treatment of cutaneous leishmaniasis. The MA-gel was characterized in terms of morphology, pH, swelling, porosity, rheology, and thermal properties by differential scanning calorimetry (DSC). Biopharmaceutical evaluation included in vitro drug release and ex vivo skin permeation. Safety was evaluated through biomechanical skin property measurements and cytotoxicity in HaCaT and RAW 267 cells. Leishmanicidal activity was tested against promastigotes and amastigotes of Leishmania infantum, and in silico studies were conducted to explore possible mechanisms of action. The composition of the MA-gel included 30% MA, 20% Pluronic\u00ae F127 (P407), and 50% water. Scanning electron microscopy revealed a sponge-like and porous internal structure of the MA-gel. This formula exhibited a pH of 5.45, swelling at approximately 12 min, and a porosity of 85.07%. The DSC showed that there was no incompatibility between MA and P407. Drug release followed a first-order kinetic profile, with 22.11 \u00b5g\/g\/cm2 of the drug retained in the skin and no permeation into the receptor compartment. The MA-gel showed no microbial growth, no cytotoxicity in keratinocytes, and no skin damage. The IC50 for promastigotes and amastigotes of L. infantum were 3.56 and 23.11 \u00b5g\/mL, respectively. In silico studies suggested that MA could act on three potential therapeutic targets according to its binding mode. The MA-gel demonstrated promising physicochemical, safety, and antiparasitic properties, supporting its potential as a topical treatment for cutaneous leishmaniasis.<\/jats:p>","DOI":"10.3390\/gels11080601","type":"journal-article","created":{"date-parts":[[2025,8,5]],"date-time":"2025-08-05T08:46:55Z","timestamp":1754383615000},"page":"601","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Topical Meglumine Antimoniate Gel for Cutaneous Leishmaniasis: Formulation, Evaluation, and In Silico Insights"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8148-9482","authenticated-orcid":false,"given":"Lilian","family":"Sosa","sequence":"first","affiliation":[{"name":"Instituto de Investigaciones en Microbiolog\u00eda (IIM), Facultad de Ciencias, Universidad Nacional Aut\u00f3noma de Honduras (UNAH), Tegucigalpa 11101, Honduras"},{"name":"Facultad de Ciencias Qu\u00edmicas y Farmacia, Universidad Nacional Aut\u00f3noma de Honduras (UNAH), Tegucigalpa 11101, Honduras"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1486-5622","authenticated-orcid":false,"given":"Lupe Carolina","family":"Espinoza","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica, Facultad de Ciencias Exactas y Naturales, Universidad T\u00e9cnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador"},{"name":"Institut de Nanoci\u00e8ncia i Nanotecnologia, Universitat de Barcelona (UB), Av. 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