Molecular Dynamics Studies on Trypanosoma cruzi Dihydroorotate Dehydrogenase Complexes: An Analysis of the Inhibitor Influence DOI Creative Commons
E. dos Santos, Luiz A.P. Flores-Junior, Camilo Henrique da Silva Lima

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: 10(17), P. 18116 - 18124

Published: April 25, 2025

Chagas disease remains a significant global health problem. Current etiological treatment is limited due to its low efficacy in the advanced stage of and adverse effects. Trypanosoma cruzi dihydroorotate dehydrogenase (TcDHODH) promising target for developing new drugs. This study explored structural dynamic factors influencing inhibition. The results from 100 ns molecular dynamics simulations 11 ligand-TcDHODH complexes revealed that ligand size conformation play crucial roles enzyme inhibition, with flexibility active site being essential function. Small ligands tend maintain closed conformation, while larger induce open conformations. further demonstrate ligand-induced conformational changes role key hydrogen bonds stabilizing ligand-enzyme complex. Electrostatic hydrophobic interactions between enzyme's S1, S2, S3 subsites contribute Understanding these facilitates development potent selective TcDHODH inhibitors disease.

Language: Английский

Antifungal and Antiparasitic Activities of Metallocene-Containing Fluconazole Derivatives DOI
Yan Lin, Gonzalo Scalese, Christina A. Bulman

et al.

ACS Infectious Diseases, Journal Year: 2024, Volume and Issue: 10(3), P. 938 - 950

Published: Feb. 8, 2024

The search for new anti-infectives based on metal complexes is gaining momentum. Among the different options taken by researchers, one involving use of organometallic probably most successful with a compound, namely, ferroquine, already in clinical trials against malaria. In this study, we describe preparation and in-depth characterization 10 (organometallic) derivatives approved antifungal drug fluconazole. Our rationale that sterol 14α-demethylase an enzyme part ergosterol biosynthesis route Trypanosoma similar to pathogenic fungi. To demonstrate our postulate, docking experiments assess binding compounds were also performed. then tested range fungal strains parasitic organisms, including protozoan parasite cruzi (T. cruzi) responsible Chagas disease, endemic disease Latin America ranks among some prevalent diseases worldwide. Of high interest, two potent study T. contain ferrocene or cobaltocenium found be harmless invertebrate animal model, Caenorhabditis elegans (C. elegans), without affecting motility, viability, development.

Language: Английский

Citations

5

Facing Diseases Caused by Trypanosomatid Parasites: Rational Design of Pd and Pt Complexes With Bioactive Ligands DOI Creative Commons
Dinorah Gambino, Lucı́a Otero

Frontiers in Chemistry, Journal Year: 2022, Volume and Issue: 9

Published: Jan. 7, 2022

Human African Trypanosomiasis (HAT), Chagas disease or American (CD), and leishmaniases are protozoan infections produced by trypanosomatid parasites belonging to the kinetoplastid order they constitute an urgent global health problem. In fact, there is need of more efficient less toxic chemotherapy for these diseases. Medicinal inorganic chemistry currently offers attractive option rational design new drugs and, in particular, antiparasitic ones. this sense, one main strategies metal-based compounds has been coordination organic ligand with known potential biological activity, a metal centre organometallic

Language: Английский

Citations

20

Exploring N-myristoyltransferase as a promising drug target against parasitic neglected tropical diseases DOI
Igor José dos Santos Nascimento, Misael de Azevedo Teotônio Cavalcanti, Ricardo Olímpio de Moura

et al.

European Journal of Medicinal Chemistry, Journal Year: 2023, Volume and Issue: 258, P. 115550 - 115550

Published: June 8, 2023

Language: Английский

Citations

11

Design and synthesis of new 1,2,3-triazoles derived from eugenol and analogues with in vitro and in vivo activity against Trypanosoma cruzi DOI

Rúbia Castro Fernandes Melo Reis,

Elda Gonçalves dos Santos,

Monique Dias Benedetti

et al.

European Journal of Medicinal Chemistry, Journal Year: 2023, Volume and Issue: 258, P. 115622 - 115622

Published: July 11, 2023

Language: Английский

Citations

11

Synthesis of Hydrazinyl–Thiazole Ester Derivatives, in Vitro Trypanocidal and Leishmanicidal Activities DOI
Muhammad Haroon, Tashfeen Akhtar, Hasnain Mehmood

et al.

Future Medicinal Chemistry, Journal Year: 2024, Volume and Issue: 16(3), P. 221 - 238

Published: Jan. 25, 2024

Aim: To synthesize novel more potent trypanocidal and leishmanicidal agents. Methods: Hantzsch's synthetic strategy was used to 1,3-thiazole-4-carboxylates their N-benzylated derivatives. Results: 28 new thiazole-carboxylates derivatives were established test activities. From both series, compounds 3b, 4f, 4g, 4j 4n exhibited a better or comparable profile benznidazole. Among all tested compounds, found be the most than Conclusion: Further variation of substituents around hydrazinyl moiety may assist in establishing

Language: Английский

Citations

5

Trypanocidal Mechanism of Action and in silico Studies of p-Coumaric Acid Derivatives DOI Open Access
Susiany Pereira Lopes, Yunierkis Pérez‐Castillo, Marília Lopes Monteiro

et al.

International Journal of Molecular Sciences, Journal Year: 2019, Volume and Issue: 20(23), P. 5916 - 5916

Published: Nov. 25, 2019

Trypanosoma species are responsible for chronic and systemic infections in millions of people around the world, compromising life quality, family government budgets. This group diseases is classified as neglected causes thousands deaths each year. In present study, trypanocidal effect a set 12 ester derivatives p-coumaric acid was tested. Of test derivatives, pentyl p-coumarate (7) (5.16 ± 1.28 μM; 61.63 28.59 μM) presented best respective activities against both epimastigote trypomastigote forms. Flow cytometry analysis revealed an increase percentage 7-AAD labeled cells, reactive oxygen species, loss mitochondrial membrane potential; indicating cell death by necrosis. mechanism confirmed scanning electron microscopy, noting cellular integrity. Molecular docking data indicated that chemical compounds tested, compound 7 potentially acts through two mechanisms action, whether links with aldo-keto reductases (AKR) or comprising cruzain (CZ) which one key cruzi development enzymes. The results indicate enzymes, van der Waals interactions between ligand receptors favor binding hydrophobic phenolic aliphatic parts ligand. study demonstrates promising molecules developing new prototypes antiprotozoal activity.

Language: Английский

Citations

35

Novel prenyloxy chalcones as potential leishmanicidal and trypanocidal agents: Design, synthesis and evaluation DOI
José C. Espinoza‐Hicks, Karla Fabiola Chacón-Vargas, Jessica Lizbeth Hernández-Rivera

et al.

European Journal of Medicinal Chemistry, Journal Year: 2019, Volume and Issue: 167, P. 402 - 413

Published: Feb. 12, 2019

Language: Английский

Citations

33

Ruthenium(II)‐Catalyzed C–H Alkenylation of Quinones: Diversity‐Oriented Strategy for Trypanocidal Compounds DOI
Gleiston G. Dias,

Tamires A. do Nascimento,

Andresa K. A. de Almeida

et al.

European Journal of Organic Chemistry, Journal Year: 2019, Volume and Issue: 2019(13), P. 2344 - 2353

Published: Jan. 8, 2019

Ruthenium(II)‐catalysis enabled C–H alkenylations of unactivated naphthoquinones for the preparation A‐ring‐modified naphthoquinoidal compounds with activity against Trypanosoma cruzi , parasite causing Chagas disease. The present study encompasses alkenylation by weak O ‐coordination means ruthenium(II) carboxylates. This method provided an efficient and versatile tool towards a diversity‐oriented strategy relevant biological profile.

Language: Английский

Citations

32

Emerging agents for the treatment of Chagas disease: what is in the preclinical and clinical development pipeline? DOI
Nieves Martínez-Peinado, Núria Cortes-Serra, Irene Losada

et al.

Expert Opinion on Investigational Drugs, Journal Year: 2020, Volume and Issue: 29(9), P. 947 - 959

Published: July 7, 2020

ABSTRACT Introduction Chagas disease treatment relies on the lengthy administration of benznidazole and/or nifurtimox, which have frequent toxicity associated. The disease, caused by parasite Trypanosoma cruzi, is mostly diagnosed at its chronic phase when life-threatening symptomatology manifest in approximately 30% those infected. Considering that both available drugs variable efficacy then, and there are over 6 million people infected, a pressing need to find safer, more efficacious drugs. Areas covered We provide an updated view path achieve aforementioned goal. From state-of-the-art vitro vivo assays based genetically engineered parasites allowed high throughput screenings large chemical collections, unfulfilled requirement having treatment-response biomarkers for clinical evaluation In between, we describe most promising pre-clinical hits landscape trials with new or regimens existing ones. Moreover, use monkey models reduce attrition rate discussed. Expert opinion addition necessary research much awaited efficacy, key step will be generalize access diagnosis maximize efforts impede transmission.

Language: Английский

Citations

32

Chagas Disease: Current View of an Ancient and Global Chemotherapy Challenge DOI
Javier Martín‐Escolano, Encarnación Medina‐Carmona, Rubén Martín‐Escolano

et al.

ACS Infectious Diseases, Journal Year: 2020, Volume and Issue: 6(11), P. 2830 - 2843

Published: Oct. 9, 2020

Chagas disease is a neglected tropical and global public health issue. In terms of treatment, no progress has been made since the 1960s, when benznidazole nifurtimox, two obsolete drugs still prescribed, were used to treat this disease. Hence, currently, there are effective treatments available tackle Over past 20 years, an increasing interest in However, parasite genetic diversity, drug resistance, tropism, complex life cycle, along with limited understanding inadequate methodologies strategies, have resulted absence new insights development disappointing outcomes clinical trials so far. summary, urgently needed. This Review considers relevant aspects related lack for disease, resumes advances tools discovery, discusses main features be taken into account develop drugs.

Language: Английский

Citations

32