Publications by authors named "Vinicio T S Coelho"

Article Synopsis
  • Treatment for visceral leishmaniasis (VL) faces challenges such as drug toxicity, high costs, and parasite resistance, prompting interest in drug repositioning, particularly with cardenolides like digitoxigenin (DIGI) from Digitalis lanata.
  • The study revealed that DIGI showed significant anti-leishmanial activity with a selectivity index (SI) superior to the standard drug amphotericin B, impacting mitochondrial function and triggering oxidative stress in Leishmania infantum parasites.
  • When DIGI was combined with Pluronic® F127-based micelles for treatment in mice, it resulted in greater reductions in parasite load and improved immune responses compared to both miltefosine and DIGI alone, suggesting
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The identification of new therapeutics to treat leishmaniasis is desirable, since available drugs are toxic and present high cost and/or poor availability. Therefore, the discovery of safer, more effective and selective pharmaceutical options is of utmost importance. Efforts towards the development of new candidates based on molecule analogs with known biological functions have been an interesting and cost-effective strategy.

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The treatment against leishmaniasis presents problems, since the currently used drugs are toxic and/or have high costs. In addition, parasite resistance has increased. As a consequence, in this study, a chloroquinolin derivative, namely 7-chloro-N,N-dimethylquinolin-4-amine or GF1059, was in vitro and in vivo tested against Leishmania parasites.

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New therapeutic strategies against leishmaniasis are desirable, since the treatment against disease presents problems, such as the toxicity, high cost and/or parasite resistance. As consequence, new antileishmanial compounds are necessary to be identified, as presenting high activity against Leishmania, but low toxicity in mammalian hosts. In the present study, a Leishmania proteome mining strategy was developed, in order to select new drug targets with low homology to human proteins, but that are considered relevant for the parasite' survival.

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Background: The present study aims to identify antigens in protein extracts of promastigote and amastigote-like Leishmania (Leishmania) chagasi syn. L. (L.

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In the present work, we have analyzed the antigenicity of Leishmania species ribosomal proteins (LRPs). To accomplish this, Leishmania infantum ribosomes were biochemically purified from promastigote cytosolic extracts, and their reactivities were analyzed by using the sera from dogs naturally infected with L. infantum.

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