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Scalabrini M, Loquet D, Rochard C, Baudin Marie M, Assailly C, Brissonnet Y, Daligault F, Saumonneau A, Lambert A, Grandjean C, Deniaud D, Lottin P, Pascual S, Fontaine L, Balloy V, Gouin SG. Multivalent inhibition of the Aspergillus fumigatus KDNase. Org Biomol Chem 2024; 22:5783-5789. [PMID: 38938184 DOI: 10.1039/d4ob00601a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Aspergillus fumigatus is a saprophytic fungus and opportunistic pathogen often causing fatal infections in immunocompromised patients. Recently AfKDNAse, an exoglycosidase hydrolyzing 3-deoxy-D-galacto-D-glycero-nonulosonic acid (KDN), a rare sugar from the sialic acid family, was identified and characterized. The principal function of AfKDNAse is still unclear, but a study suggests a critical role in fungal cell wall morphology and virulence. Potent AfKDNAse inhibitors are required to better probe the enzyme's biological role and as potential antivirulence factors. In this work, we developed a set of AfKDNAse inhibitors based on enzymatically stable thio-KDN motifs. C2, C9-linked heterodi-KDN were designed to fit into unusually close KDN sugar binding pockets in the protein. A polymeric compound with an average of 54 KDN motifs was also designed by click chemistry. Inhibitory assays performed on recombinant AfKDNAse showed a moderate and strong enzymatic inhibition for the two classes of compounds, respectively. The poly-KDN showed more than a nine hundred fold improved inhibitory activity (IC50 = 1.52 ± 0.37 μM, 17-fold in a KDN molar basis) compared to a monovalent KDN reference, and is to our knowledge, the best synthetic inhibitor described for a KDNase. Multivalency appears to be a relevant strategy for the design of potent KDNase inhibitors. Importantly, poly-KDN was shown to strongly decrease filamentation when co-cultured with A. fumigatus at micromolar concentrations, opening interesting perspectives in the development of antivirulence factors.
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Affiliation(s)
| | - Denis Loquet
- Nantes Université, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France.
| | - Camille Rochard
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, Paris, France
| | | | - Coralie Assailly
- Nantes Université, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France.
| | - Yoan Brissonnet
- Nantes Université, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France.
| | - Franck Daligault
- Nantes Université, CNRS, US2B, UMR 6286, F-44000 Nantes, France 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Amélie Saumonneau
- Nantes Université, CNRS, US2B, UMR 6286, F-44000 Nantes, France 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Annie Lambert
- Nantes Université, CNRS, US2B, UMR 6286, F-44000 Nantes, France 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Cyrille Grandjean
- Nantes Université, CNRS, US2B, UMR 6286, F-44000 Nantes, France 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - David Deniaud
- Nantes Université, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France.
| | - Paul Lottin
- Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS, Le Mans Université, Av. O. Messiaen, 72085 Le Mans cedex 9, France
| | - Sagrario Pascual
- Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS, Le Mans Université, Av. O. Messiaen, 72085 Le Mans cedex 9, France
| | - Laurent Fontaine
- Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS, Le Mans Université, Av. O. Messiaen, 72085 Le Mans cedex 9, France
| | - Viviane Balloy
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, Paris, France
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González-González A, Vázquez C, Encalada R, Saavedra E, Vázquez-Jiménez LK, Ortiz-Pérez E, Bolognesi ML, Rivera G. Phenothiazine-based virtual screening, molecular docking, and molecular dynamics of new trypanothione reductase inhibitors of Trypanosoma cruzi. Mol Inform 2023; 42:e2300069. [PMID: 37490403 DOI: 10.1002/minf.202300069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/26/2023] [Accepted: 07/25/2023] [Indexed: 07/27/2023]
Abstract
Phenothiazine derivatives can unselectively inhibit the trypanothione-dependent antioxidant system enzyme trypanothione reductase (TR). A virtual screening of 2163 phenothiazine derivatives from the ZINC15 and PubChem databases docked on the active site of T. cruzi TR showed that 285 compounds have higher affinity than the natural ligand trypanothione disulfide. 244 compounds showed higher affinity toward the parasite's enzyme than to its human homolog glutathione reductase. Protein-ligand interaction profiling predicted that the main interactions for the top scored compounds were with residues important for trypanothione disulfide binding: Phe396, Pro398, Leu399, His461, Glu466, and Glu467, particularly His461, which participates in catalysis. Two compounds with the desired profiles, ZINC1033681 (Zn_C687) and ZINC10213096 (Zn_C216), decreased parasite growth by 20 % and 50 %, respectively. They behaved as mixed-type inhibitors of recombinant TR, with Ki values of 59 and 47 μM, respectively. This study provides a further understanding of the potential of phenothiazine derivatives as TR inhibitors.
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Affiliation(s)
- Alonzo González-González
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| | - Citlali Vázquez
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, 14080, Mexico City, Mexico
| | - Rusely Encalada
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, 14080, Mexico City, Mexico
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, 14080, Mexico City, Mexico
| | - Lenci K Vázquez-Jiménez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| | - Eyra Ortiz-Pérez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
| | - María Laura Bolognesi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, I-40126, Bologna, Italy
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710, Reynosa, México
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Sasidharan S, Saudagar P. An anti-leishmanial compound 4',7-dihydroxyflavone elicits ROS-mediated apoptosis-like death in Leishmania parasite. FEBS J 2023. [PMID: 36871140 DOI: 10.1111/febs.16770] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/12/2023] [Accepted: 03/02/2023] [Indexed: 03/06/2023]
Abstract
The treatment for leishmaniasis is currently plagued by side effects such as toxicity and the emergence of drug resistance to the available repertoire of drugs, as well as the expense of these drugs. Considering such rising concerns, we report the anti-leishmanial activity and mechanism of a flavone compound 4',7-dihydroxyflavone (TI 4). Four flavanoids were initially screened for anti-leishmanial activity and cytotoxicity. The results showed that the compound TI 4 exhibited higher activity and selectivity index at the same time as maintaining low cytotoxicity. Preliminary microscopic studies and fluorescence-activated cell sorting analysis reported that the parasite underwent apoptosis on TI 4 treatment. Further in-depth studies revealed high reactive oxygen species (ROS) production and thiol levels in the parasites, suggesting ROS-mediated apoptosis in the parasites upon TI 4 treatment. Other apoptotic indicators such as intracellular Ca2+ and mitochondrial membrane potential also indicated the onset of apoptosis in the treated parasites. The mRNA expression levels signified that the redox metabolism genes were upregulated by two-fold along with the apoptotic genes. In summary, the use of TI 4 on Leishmania parasites induces ROS-mediated apoptosis; therefore, the compound has immense potential to be an anti-leishmanial drug. However, in vivo studies would be required to ascertain its safety and efficacy before we can exploit the compound against the growing leishmaniasis crisis.
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Affiliation(s)
- Santanu Sasidharan
- Department of Biotechnology, National Institute of Technology, Warangal, India
| | - Prakash Saudagar
- Department of Biotechnology, National Institute of Technology, Warangal, India
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González-González A, Sánchez-Sánchez O, Krauth-Siegel RL, Bolognesi ML, Gớmez-Escobedo R, Nogueda-Torres B, Vázquez-Jiménez LK, Saavedra E, Encalada R, Espinoza-Hicks JC, Paz-González AD, Rivera G. In Vitro and In Silico Analysis of New n-Butyl and Isobutyl Quinoxaline-7-carboxylate 1,4-di- N-oxide Derivatives against Trypanosoma cruzi as Trypanothione Reductase Inhibitors. Int J Mol Sci 2022; 23:13315. [PMID: 36362102 PMCID: PMC9655728 DOI: 10.3390/ijms232113315] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/24/2022] [Accepted: 10/27/2022] [Indexed: 09/29/2023] Open
Abstract
American trypanosomiasis is a worldwide health problem that requires attention due to ineffective treatment options. We evaluated n-butyl and isobutyl quinoxaline-7-carboxylate 1,4-di-N-oxide derivatives against trypomastigotes of the Trypanosoma cruzi strains NINOA and INC-5. An in silico analysis of the interactions of 1,4-di-N-oxide on the active site of trypanothione reductase (TR) and an enzyme inhibition study was carried out. The n-butyl series compound identified as T-150 had the best trypanocidal activity against T. cruzi trypomastigotes, with a 13% TR inhibition at 44 μM. The derivative T-147 behaved as a mixed inhibitor with Ki and Ki' inhibition constants of 11.4 and 60.8 µM, respectively. This finding is comparable to the TR inhibitor mepacrine (Ki = 19 µM).
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Affiliation(s)
- Alonzo González-González
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Oscar Sánchez-Sánchez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - R. Luise Krauth-Siegel
- Center of Biochemistry, Heidelberg University, Im Neuenheimer Feld 328, 69120 Heidelberg, Germany
| | - Maria Laura Bolognesi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, I-40126 Bologna, Italy
| | - Rogelio Gớmez-Escobedo
- Departamento de Parasitología, Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional, Ciudad de Mexico 07738, Mexico
| | - Benjamín Nogueda-Torres
- Departamento de Parasitología, Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional, Ciudad de Mexico 07738, Mexico
| | - Lenci K. Vázquez-Jiménez
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de Mexico 14080, Mexico
| | - Rusely Encalada
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de Mexico 14080, Mexico
| | | | - Alma D. Paz-González
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
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Keil J, Rafn GR, Turan IM, Aljohani MA, Sahebjam-Atabaki R, Sun XL. Sialidase Inhibitors with Different Mechanisms. J Med Chem 2022; 65:13574-13593. [PMID: 36252951 PMCID: PMC9620260 DOI: 10.1021/acs.jmedchem.2c01258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Indexed: 11/28/2022]
Abstract
Sialidases, or neuraminidases, are enzymes that catalyze the hydrolysis of sialic acid (Sia)-containing molecules, mostly removal of the terminal Sia (desialylation). By desialylation, sialidase can modulate the functionality of the target compound and is thus often involved in biological pathways. Inhibition of sialidases with inhibitors is an important approach for understanding sialidase function and the underlying mechanisms and could serve as a therapeutic approach as well. Transition-state analogues, such as anti-influenza drugs oseltamivir and zanamivir, are major sialidase inhibitors. In addition, difluoro-sialic acids were developed as mechanism-based sialidase inhibitors. Further, fluorinated quinone methide-based suicide substrates were reported. Sialidase product analogue inhibitors were also explored. Finally, natural products have shown competitive inhibiton against viral, bacterial, and human sialidases. This Perspective describes sialidase inhibitors with different mechanisms and their activities and future potential, which include transition-state analogue inhibitors, mechanism-based inhibitors, suicide substrate inhibitors, product analogue inhibitors, and natural product inhibitors.
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Affiliation(s)
- Joseph
M. Keil
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Garrett R. Rafn
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Isaac M. Turan
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Majdi A. Aljohani
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Reza Sahebjam-Atabaki
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Xue-Long Sun
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
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Simone MI, Wood A, Campkin D, Kiefel MJ, Houston TA. Recent results from non-basic glycosidase inhibitors: How structural diversity can inform general strategies for improving inhibition potency. Eur J Med Chem 2022; 235:114282. [DOI: 10.1016/j.ejmech.2022.114282] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 03/06/2022] [Accepted: 03/09/2022] [Indexed: 01/01/2023]
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de Andrade P, Ahmadipour S, Field RA. Anomeric 1,2,3-triazole-linked sialic acid derivatives show selective inhibition towards a bacterial neuraminidase over a trypanosome trans-sialidase. Beilstein J Org Chem 2022; 18:208-216. [PMID: 35280952 PMCID: PMC8895027 DOI: 10.3762/bjoc.18.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/02/2022] [Indexed: 11/25/2022] Open
Abstract
Sialic acid is the natural substrate for sialidases and its chemical modification has been a useful approach to generate potent and selective inhibitors. Aiming at advancing the discovery of selective Trypanosoma cruzi trans-sialidase (TcTS) inhibitors, we have synthesised a small series of anomeric 1,2,3-triazole-linked sialic acid derivatives in good yields and high purity via copper-catalysed azide-alkyne cycloaddition (CuAAC, click chemistry) and evaluated their activity towards TcTS and neuraminidase. Surprisingly, the compounds showed practically no TcTS inhibition, whereas ca. 70% inhibition was observed for neuraminidase in relation to the analogues bearing hydrophobic substituents and ca. 5% for more polar substituents. These results suggest that polarity changes are less tolerated by neuraminidase due to the big difference in impact of hydrophobicity upon inhibition, thus indicating a simple approach to differentiate both enzymes. Moreover, such selectivity might be reasoned based on a possible steric hindrance caused by a bulky hydrophobic loop that sits over the TcTS active site and may prevent the hydrophobic inhibitors from binding. The present study is a step forward in exploiting subtle structural differences in sialidases that need to be addressed in order to achieve selective inhibition.
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Affiliation(s)
- Peterson de Andrade
- Manchester Institute of Biotechnology and Department of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
| | - Sanaz Ahmadipour
- Manchester Institute of Biotechnology and Department of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
- Iceni Glycoscience Ltd, Norwich Research Park NR4 7GJ, UK
| | - Robert A Field
- Manchester Institute of Biotechnology and Department of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
- Iceni Glycoscience Ltd, Norwich Research Park NR4 7GJ, UK
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Synthesis and Evaluation of Trypanocidal Activity of Chromane-Type Compounds and Acetophenones. Molecules 2021; 26:molecules26237067. [PMID: 34885649 PMCID: PMC8658963 DOI: 10.3390/molecules26237067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/12/2021] [Accepted: 10/19/2021] [Indexed: 11/21/2022] Open
Abstract
American trypanosomiasis (Chagas disease) caused by the Trypanosoma cruzi parasite, is a severe health problem in different regions of Latin America and is currently reported to be spreading to Europe, North America, Japan, and Australia, due to the migration of populations from South and Central America. At present, there is no vaccine available and chemotherapeutic options are reduced to nifurtimox and benznidazole. Therefore, the discovery of new molecules is urgently needed to initiate the drug development process. Some acetophenones and chalcones, as well as chromane-type substances, such as chromones and flavones, are natural products that have been studied as trypanocides, but the relationships between structure and activity are not yet fully understood. In this work, 26 compounds were synthesized to determine the effect of hydroxyl and isoprenyl substituents on trypanocide activity. One of the compounds showed interesting activity against a resistant strain of T. cruzi, with a half effective concentration of 18.3 µM ± 1.1 and an index of selectivity > 10.9.
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da Costa KM, Marques da Fonseca L, dos Reis JS, Santos MARDC, Previato JO, Mendonça-Previato L, Freire-de-Lima L. Trypanosoma cruzi trans-Sialidase as a Potential Vaccine Target Against Chagas Disease. Front Cell Infect Microbiol 2021; 11:768450. [PMID: 34765570 PMCID: PMC8576188 DOI: 10.3389/fcimb.2021.768450] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/12/2021] [Indexed: 01/21/2023] Open
Abstract
Chagas' disease is caused by the protozoan Trypanosoma cruzi, described in the early 20th century by the Brazilian physician Dr. Carlos Chagas. There was a great amount of research devoted to diagnosis, treatment and prevention of the disease. One of the most important discoveries made since then, impacting the understanding of how the parasite interacts with the host's immune system, was the description of trans-sialidase. It is an unique enzyme, capable of masking the parasite's presence from the host, while at the same time dampening the activation of CD8+ T cells, the most important components of the immune response. Since the description of Chagas' disease in 1909, extensive research has identified important events in the disease in order to understand the biochemical mechanism that modulates T. cruzi-host cell interactions and the ability of the parasite to ensure its survival. The importance of the trans-sialidase enzyme brought life to many studies for the design of diagnostic tests, drugs and vaccines. While many groups have been prolific, such efforts have encountered problems, among them: the fact that while T. cruzi have many genes that are unique to the parasite, it relies on multiple copies of them and the difficulty in providing epitopes that result in effective and robust immune responses. In this review, we aim to convey the importance of trans-sialidase as well as to provide a history, including the initial failures and the most promising successes in the chasing of a working vaccine for a disease that is endemic in many tropical countries, including Brazil.
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Affiliation(s)
- Kelli Monteiro da Costa
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | - Lucia Mendonça-Previato
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leonardo Freire-de-Lima
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Vázquez-Jiménez LK, Paz-González AD, Juárez-Saldivar A, Uhrig ML, Agusti R, Reyes-Arellano A, Nogueda-Torres B, Rivera G. Structure-Based Virtual Screening of New Benzoic Acid Derivatives as Trypanosoma cruzi Trans-sialidase Inhibitors. Med Chem 2021; 17:724-731. [PMID: 32370720 DOI: 10.2174/1573406416666200506084611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/13/2020] [Accepted: 03/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Chagas disease, caused by the parasite Trypanosoma cruzi, represents a worldwide epidemiological, economic, and social problem. In the last decades, the trans-sialidase enzyme of Trypanosoma cruzi has been considered an attractive target for the development of new agents with potential trypanocidal activity. OBJECTIVE In this work, the aim was to find new potential non-sugar trans-sialidase inhibitors using benzoic acid as a scaffold. METHODS A structure-based virtual screening of the ZINC15 database was carried out. Additionally, the enzyme and trypanocidal activity of the selected compounds was determined. RESULTS The results of this work detected 487 compounds derived from benzoic acid as potential transsialidase inhibitors with a more promising binding energy value (< -7.7 kcal/mol) than the known inhibitor 2,3-dehydro-2-deoxy-N-acetylneuraminic acid (DANA). In particular, two lead compounds, V1 and V2, turned out to be promising trans-sialidase inhibitors. Even though the trypanocidal activity displayed was low, these compounds showed trans-sialidase inhibition values of 87.6% and 29.6%, respectively. CONCLUSION Structure-based virtual screening using a molecular docking approach is a useful method for the identification of new trans-sialidase inhibitors.
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Affiliation(s)
- Lenci Karina Vázquez-Jiménez
- Laboratorio de Biotecnologia Farmaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, 88710, Reynosa, Mexico
| | - Alma Delia Paz-González
- Laboratorio de Biotecnologia Farmaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, 88710, Reynosa, Mexico
| | - Alfredo Juárez-Saldivar
- Laboratorio de Biotecnologia Farmaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, 88710, Reynosa, Mexico
| | - María Laura Uhrig
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Quimica Organica, Buenos Aires, Argentina
| | - Rosalía Agusti
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Quimica Organica, Buenos Aires, Argentina
| | - Alicia Reyes-Arellano
- Departamento de Quimica Organica, Escuela Nacional de Ciencias Biologicas, Instituto Politecnico Nacional, 11340, Ciudad de Mexico, Mexico
| | - Benjamín Nogueda-Torres
- Departamento de Parasitologia, Escuela Nacional de Ciencias Biologicas, Instituto Politecnico Nacional, 11340, Ciudad de Mexico, Mexico
| | - Gildardo Rivera
- Laboratorio de Biotecnologia Farmaceutica, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, 88710, Reynosa, Mexico
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Sasidharan S, Saudagar P. Flavones reversibly inhibit Leishmania donovani tyrosine aminotransferase by binding to the catalytic pocket: An integrated in silico-in vitro approach. Int J Biol Macromol 2020; 164:2987-3004. [PMID: 32798546 DOI: 10.1016/j.ijbiomac.2020.08.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/27/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023]
Abstract
The current drugs for treating Leishmaniasis are toxic, non-economical and with the emergence of drug resistance makes the need for novel therapeutics urgent and necessary. In the current study, we report the identification of compounds TI 1-5 against tyrosine aminotransferase of L. donovani from a curated ZINC15 database containing 183,659 compounds. These flavonoid compounds had binding energies < -8 kcal/mol and interacted with the active site residues S151, K286, C290, and P291. Assessment of physicochemical descriptors and ADMET properties established the drug likeliness of these compounds. The all-atom molecular dynamic simulations of the TAT-TI complexes exhibited stable geometrical properties and further trajectory analysis revealed the high-affinity interactions of TI 1, 3, 4, and 5 with the active site residues. DFT calculations reported the high electrophilic nature of TI 2 while other TI compounds demonstrated good kinetic stability and reactivity. From in vitro studies, TI 3 and TI 4 had the highest inhibition with Ki values of 0.9 ± 0.2 μM and 0.30 ± 0.1 μM, respectively. Taken together, the results from this study indicate the potentiality of TI 1, 3, 4, and 5 as anti-leishmanial leads, and these compounds can be exploited to manage the growing Leishmaniasis crisis in the world.
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Affiliation(s)
- Santanu Sasidharan
- Department of Biotechnology, National Institute of Technology, Warangal, 506004, Telangana, India
| | - Prakash Saudagar
- Department of Biotechnology, National Institute of Technology, Warangal, 506004, Telangana, India.
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Santos SS, de Araújo RV, Giarolla J, Seoud OE, Ferreira EI. Searching for drugs for Chagas disease, leishmaniasis and schistosomiasis: a review. Int J Antimicrob Agents 2020; 55:105906. [PMID: 31987883 DOI: 10.1016/j.ijantimicag.2020.105906] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 12/16/2022]
Abstract
Chagas disease, leishmaniasis and schistosomiasis are neglected diseases (NDs) and are a considerable global challenge. Despite the huge number of people infected, NDs do not create interest from pharmaceutical companies because the associated revenue is generally low. Most of the research on these diseases has been conducted in academic institutions. The chemotherapeutic armamentarium for NDs is scarce and inefficient and better drugs are needed. Researchers have found some promising potential drug candidates using medicinal chemistry and computational approaches. Most of these compounds are synthetic but some are from natural sources or are semi-synthetic. Drug repurposing or repositioning has also been greatly stimulated for NDs. This review considers some potential drug candidates and provides details of their design, discovery and activity.
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Affiliation(s)
- Soraya Silva Santos
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil
| | - Renan Vinicius de Araújo
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil
| | - Jeanine Giarolla
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil
| | - Omar El Seoud
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil
| | - Elizabeth Igne Ferreira
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil.
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Wang YH. Sialidases From Clostridium perfringens and Their Inhibitors. Front Cell Infect Microbiol 2020; 9:462. [PMID: 31998664 PMCID: PMC6966327 DOI: 10.3389/fcimb.2019.00462] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/16/2019] [Indexed: 12/27/2022] Open
Abstract
Clostridium perfringens is an important human and animal pathogen that is the primary causative agent of necrotizing enteritis and enterotoxemia in many types of animals; it causes traumatic gas gangrene in humans and animals and is associated with cases of food poisoning in humans. C. perfringens produces a variety of toxins as well as many enzymes, including three sialidases, NanH, NanI, and NanJ. Sialidases could be important virulence factors that promote the pathogenesis of C. perfringens. Among them, NanI promotes the colonization of C. perfringens in the intestinal tract and enhances the cytotoxic activity and association of several major C. perfringens toxins with host cells. In recent years, studies on the structure and functions of sialidases have yielded interesting results, and the functions of sialic acid and sialidases in bacterial pathogenesis have become a hot research topic. An in-depth understanding and additional studies of sialidases will further elucidate mechanisms of C. perfringens pathogenesis and could promote the development and clinical applications of sialidase inhibitors. This article reviews the structural characteristics, expression regulation, roles of sialidases in C. perfringens pathogenesis, and effects of their inhibitors.
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Affiliation(s)
- Yan-Hua Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
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14
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Borsari C, Jiménez-Antón MD, Eick J, Bifeld E, Torrado JJ, Olías-Molero AI, Corral MJ, Santarem N, Baptista C, Severi L, Gul S, Wolf M, Kuzikov M, Ellinger B, Reinshagen J, Witt G, Linciano P, Tait A, Costantino L, Luciani R, Tejera Nevado P, Zander-Dinse D, Franco CH, Ferrari S, Moraes CB, Cordeiro-da-Silva A, Ponterini G, Clos J, Alunda JM, Costi MP. Discovery of a benzothiophene-flavonol halting miltefosine and antimonial drug resistance in Leishmania parasites through the application of medicinal chemistry, screening and genomics. Eur J Med Chem 2019; 183:111676. [DOI: 10.1016/j.ejmech.2019.111676] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/01/2019] [Accepted: 09/02/2019] [Indexed: 01/24/2023]
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Boniface PK, Ferreira EI. Flavonoids as efficient scaffolds: Recent trends for malaria, leishmaniasis, Chagas disease, and dengue. Phytother Res 2019; 33:2473-2517. [PMID: 31441148 DOI: 10.1002/ptr.6383] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 04/04/2019] [Accepted: 04/13/2019] [Indexed: 12/21/2022]
Abstract
Endemic in 149 tropical and subtropical countries, neglected tropical diseases (NTDs) affect more than 1 billion people annually with over 500,000 deaths. Among the NTDs, some of the most severe consist of leishmaniasis, Chagas disease, and dengue. The impact of the combined NTDs closely rivals that of malaria. According to the World Health Organization, 216 million cases of malaria were reported in 2016 with 445,000 deaths. Current treatment options are associated with various limitations including widespread drug resistance, severe adverse effects, lengthy treatment duration, unfavorable toxicity profiles, and complicated drug administration procedures. Flavonoids are a class of compounds that has been the subject of considerable scientific interest. New developments of flavonoids have made promising advances for the potential treatment of malaria, leishmaniasis, Chagas disease, and dengue, with less toxicity, high efficacy, and improved bioavailability. This review summarizes the current standings of the use of flavonoids to treat malaria and neglected diseases such as leishmaniasis, Chagas disease, and dengue. Natural and synthetic flavonoids are leading compounds that can be used for developing antiprotozoal and antiviral agents. However, detailed studies on toxicity, pharmacokinetics, and mechanisms of action of these compounds are required to confirm the in vitro pharmacological claims of flavonoids for pharmaceutical applications. HIGHLIGHTS: In the current review, we have tried to compile recent discoveries on natural and synthetic flavonoids as well as their implication in the treatment of malaria, leishmaniasis, Chagas disease, and dengue. A total of 373 (220 natural and 153 synthetic) flavonoids have been evaluated for antimalarial, antileishmanial, antichagasic, and antidengue activities. Most of these flavonoids showed promising results against the above diseases. Reports on molecular modeling of flavonoid compounds to the disease target indicated encouraging results. Flavonoids can be prospected as potential leads for drug development; however, more rigorously designed studies on toxicity and pharmacokinetics, as well as the quantitative structure-activity relationship studies of these compounds, need to be addressed.
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Affiliation(s)
- Pone Kamdem Boniface
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Elizabeth Igne Ferreira
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Morrone-Pozzuto P, Uhrig ML, Agusti R. Trypanosoma cruzi trans-sialidase alternative substrates: Study of the effect of substitution in C-6 in benzyl β-lactoside. Carbohydr Res 2019; 478:33-45. [PMID: 31054381 DOI: 10.1016/j.carres.2019.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/09/2019] [Accepted: 04/16/2019] [Indexed: 11/16/2022]
Abstract
Trypanosoma cruzi trans-sialidase (TcTS) is a cell surface protein that participates in the adhesion and invasion mechanisms of the parasite into the host cells, making it an attractive target for inhibitors design. In order to contribute to the knowledge of the interaction between TcTS and their acceptor substrates, we designed and synthesized a library of 20 benzyl lactosides substituted in C-6 of the glucose residue with a series of 1,2,3-triazole derivatives containing different aromatic substituents in the C-4 position. The library was prepared by alkyne-azide cycloaddition reaction catalyzed by Cu(I) ("click chemistry") between a benzyl β-lactoside functionalized with an azide group in the C-6 position and a series of 2-propargyl phenyl ethers. Herein we analyzed the chromatographic behavior on high performance anion exchange chromatography (HPAEC) of the triazoyl-lactose derivatives and their activity as acceptors of TcTS and inhibitors of the sialylation of N-acetyllactosamine. The triazoyl derivatives were obtained with excellent yields and all of them behaved as moderate alternative substrates. The presence of bulky hydrophobic substituents dramatically increased the retention times in HPAEC but did not affect significantly their acceptor properties toward TcTS.
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Affiliation(s)
- Pablo Morrone-Pozzuto
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Buenos Aires, Argentina; CONICET- Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), Buenos Aires, Argentina
| | - Maria Laura Uhrig
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Buenos Aires, Argentina; CONICET- Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), Buenos Aires, Argentina.
| | - Rosalia Agusti
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Buenos Aires, Argentina; CONICET- Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), Buenos Aires, Argentina.
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17
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Borsari C, Santarem N, Macedo S, Jiménez-Antón MD, Torrado JJ, Olías-Molero AI, Corral MJ, Tait A, Ferrari S, Costantino L, Luciani R, Ponterini G, Gul S, Kuzikov M, Ellinger B, Behrens B, Reinshagen J, Alunda JM, Cordeiro-da-Silva A, Costi MP. SAR Studies and Biological Characterization of a Chromen-4-one Derivative as an Anti- Trypanosoma brucei Agent. ACS Med Chem Lett 2019; 10:528-533. [PMID: 30996791 DOI: 10.1021/acsmedchemlett.8b00565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/29/2019] [Indexed: 12/11/2022] Open
Abstract
Chemical modulation of the flavonol 2-(benzo[d][1,3]dioxol-5-yl)-chromen-4-one (1), a promising anti-Trypanosomatid agent previously identified, was evaluated through a phenotypic screening approach. Herein, we have performed structure-activity relationship studies around hit compound 1. The pivaloyl derivative (13) showed significant anti-T. brucei activity (EC50 = 1.1 μM) together with a selectivity index higher than 92. The early in vitro ADME-tox properties (cytotoxicity, mitochondrial toxicity, cytochrome P450 and hERG inhibition) were determined for compound 1 and its derivatives, and these led to the identification of some liabilities. The 1,3-benzodioxole moiety in the presented compounds confers better in vivo pharmacokinetic properties than those of classical flavonols. Further studies using different delivery systems could lead to an increase of compound blood levels.
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Affiliation(s)
- Chiara Borsari
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Nuno Santarem
- IBMC and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4150-180 Porto, Portugal
| | - Sara Macedo
- IBMC and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4150-180 Porto, Portugal
| | | | | | | | | | - Annalisa Tait
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Stefania Ferrari
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Luca Costantino
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Rosaria Luciani
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Glauco Ponterini
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Sheraz Gul
- Fraunhofer Institute for Molecular Biology and Applied Ecology Screening Port, 22525 Hamburg, Germany
| | - Maria Kuzikov
- Fraunhofer Institute for Molecular Biology and Applied Ecology Screening Port, 22525 Hamburg, Germany
| | - Bernhard Ellinger
- Fraunhofer Institute for Molecular Biology and Applied Ecology Screening Port, 22525 Hamburg, Germany
| | - Birte Behrens
- Fraunhofer Institute for Molecular Biology and Applied Ecology Screening Port, 22525 Hamburg, Germany
| | - Jeanette Reinshagen
- Fraunhofer Institute for Molecular Biology and Applied Ecology Screening Port, 22525 Hamburg, Germany
| | | | - Anabela Cordeiro-da-Silva
- IBMC and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4150-180 Porto, Portugal
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Maria Paola Costi
- University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
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18
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Brissonnet Y, Assailly C, Saumonneau A, Bouckaert J, Maillasson M, Petitot C, Roubinet B, Didak B, Landemarre L, Bridot C, Blossey R, Deniaud D, Yan X, Bernard J, Tellier C, Grandjean C, Daligault F, Gouin SG. Multivalent Thiosialosides and Their Synergistic Interaction with Pathogenic Sialidases. Chemistry 2019; 25:2358-2365. [DOI: 10.1002/chem.201805790] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/03/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Yoan Brissonnet
- CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation; UMR CNRS 6230; UFR des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Coralie Assailly
- CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation; UMR CNRS 6230; UFR des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Amélie Saumonneau
- UFR des Sciences et des Techniques; Université de Nantes, UFIP, UMR CNRS 6286; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Julie Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 CNRS; Université de Lille 1; Lille 59000 France
| | - Mike Maillasson
- Impact biogeneouest; CRCINA; Inserm; CNRS; Université de Nantes; Nantes France
| | - Clémence Petitot
- UFR des Sciences et des Techniques; Université de Nantes, UFIP, UMR CNRS 6286; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Benoit Roubinet
- Bâtiment Physique-Chimie; Glycodiag; Rue de Chartres, BP6759 45067 Orléans cedex 2 France
| | - Blanka Didak
- Bâtiment Physique-Chimie; Glycodiag; Rue de Chartres, BP6759 45067 Orléans cedex 2 France
| | - Ludovic Landemarre
- Bâtiment Physique-Chimie; Glycodiag; Rue de Chartres, BP6759 45067 Orléans cedex 2 France
| | - Clarisse Bridot
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 CNRS; Université de Lille 1; Lille 59000 France
| | - Ralf Blossey
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), UMR8576 CNRS; Université de Lille 1; Lille 59000 France
| | - David Deniaud
- CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation; UMR CNRS 6230; UFR des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Xibo Yan
- Université de Lyon, Lyon; 69003 (France), INSA- Lyon, IMP, Villeurbanne, 69621, France, CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Villeurbanne, 69621 France
| | - Julien Bernard
- Université de Lyon, Lyon; 69003 (France), INSA- Lyon, IMP, Villeurbanne, 69621, France, CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Villeurbanne, 69621 France
| | - Charles Tellier
- UFR des Sciences et des Techniques; Université de Nantes, UFIP, UMR CNRS 6286; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Cyrille Grandjean
- UFR des Sciences et des Techniques; Université de Nantes, UFIP, UMR CNRS 6286; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Franck Daligault
- UFR des Sciences et des Techniques; Université de Nantes, UFIP, UMR CNRS 6286; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Sébastien G. Gouin
- CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation; UMR CNRS 6230; UFR des Sciences et des Techniques; Université de Nantes; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
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19
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The synthesis and kinetic evaluation of aryl α-aminophosphonates as novel inhibitors of T. cruzi trans-sialidase. Eur J Med Chem 2018; 158:25-33. [DOI: 10.1016/j.ejmech.2018.08.089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/21/2018] [Accepted: 08/29/2018] [Indexed: 11/17/2022]
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20
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Synthesis, molecular docking and biological evaluation of novel phthaloyl derivatives of 3-amino-3-aryl propionic acids as inhibitors of Trypanosoma cruzi trans-sialidase. Eur J Med Chem 2018; 156:252-268. [PMID: 30006170 DOI: 10.1016/j.ejmech.2018.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 11/22/2022]
Abstract
In the last two decades, trans-sialidase of Trypanosoma cruzi (TcTS) has been an important pharmacological target for developing new anti-Chagas agents. In a continuous effort to discover new potential TcTS inhibitors, 3-amino-3-arylpropionic acid derivatives (series A) and novel phthaloyl derivatives (series B, C and D) were synthesized and molecular docking, TcTS enzyme inhibition and determination of trypanocidal activity were carried out. From four series obtained, compound D-11 had the highest binding affinity value (-11.1 kcal/mol) compared to reference DANA (-7.8 kcal/mol), a natural ligand for TS enzyme. Furthermore, the 3D and 2D interactions analysis of compound D-11 showed a hydrogen bond, π-π stacking, π-anion, hydrophobic and Van der Waals forces with all important amino acid residues (Arg35, Arg245, Arg314, Tyr119, Trp312, Tyr342, Glu230 and Asp59) on the active site of TcTS. Additionally, D-11 showed the highest TcTS enzyme inhibition (86.9% ± 5) by high-performance ion exchange chromatography (HPAEC). Finally, D-11 showed better trypanocidal activity than the reference drugs nifurtimox and benznidazole with an equal % lysis (63 ± 4 and 65 ± 2 at 10 μg/mL) and LC50 value (52.70 ± 2.70 μM and 46.19 ± 2.36 μM) on NINOA and INC-5 strains, respectively. Therefore, D-11 is a small-molecule with potent TcTS inhibition and a strong trypanocidal effect that could help in the development of new anti-Chagas agents.
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21
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Plants of Brazilian restingas with tripanocide activity against Trypanosoma cruzi strains. J Bioenerg Biomembr 2017; 49:473-483. [PMID: 29147831 DOI: 10.1007/s10863-017-9733-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
Abstract
Chagas disease is caused by the Trypanosoma cruzi affecting millions of people, and widespread throughout Latin America. This disease exhibits a problematic chemotherapy. Benznidazole, which is the drug currently used as standard treatment, lamentably evokes several adverse reactions. Among other options, natural products have been tested to discover a novel therapeutic drug for this disease. A lot of plants from the Brazilian flora did not contain studies about their biological effects. Restinga de Jurubatiba from Brazil is a sandbank ecosystem poorly studied in relation to plant biological activity. Thus, three plant species from Restinga de Jurubatiba were tested against in vitro antiprotozoal activity. Among six extracts obtained from leaves and stem parts and 2 essential oils derived from leave parts, only 3 extracts inhibited epimastigote proliferation. Substances present in the extracts with activity were isolated (quercetin, myricetin, and ursolic acid), and evaluated in relation to antiprotozoal activity against epimastigote Y and Dm28 Trypanosoma cruzi strains. All isolated substances were effective to reduce protozoal proliferation. Essentially, quercetin and myricetin did not cause mammalian cell toxicity. In summary, myricetin and quercetin molecule can be used as a scaffold to develop new effective drugs against Chagas's disease.
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22
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Sueth-Santiago V, Decote-Ricardo D, Morrot A, Freire-de-Lima CG, Lima MEF. Challenges in the chemotherapy of Chagas disease: Looking for possibilities related to the differences and similarities between the parasite and host. World J Biol Chem 2017; 8:57-80. [PMID: 28289519 PMCID: PMC5329715 DOI: 10.4331/wjbc.v8.i1.57] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 12/30/2016] [Accepted: 01/14/2017] [Indexed: 02/05/2023] Open
Abstract
Almost 110 years after the first studies by Dr. Carlos Chagas describing an infectious disease that was named for him, Chagas disease remains a neglected illness and a death sentence for infected people in poor countries. This short review highlights the enormous need for new studies aimed at the development of novel and more specific drugs to treat chagasic patients. The primary tool for facing this challenge is deep knowledge about the similarities and differences between the parasite and its human host.
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23
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Kashif M, Moreno-Herrera A, Lara-Ramirez EE, Ramírez-Moreno E, Bocanegra-García V, Ashfaq M, Rivera G. Recent developments in trans-sialidase inhibitors of Trypanosoma cruzi. J Drug Target 2017; 25:485-498. [DOI: 10.1080/1061186x.2017.1289539] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Muhammad Kashif
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa, Mexico
| | | | | | - Esther Ramírez-Moreno
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Ciudad de Mexico, Mexico
| | | | - Muhammad Ashfaq
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Gildardo Rivera
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa, Mexico
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24
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Freire-de-Lima L, da Fonseca LM, da Silva VA, da Costa KM, Morrot A, Freire-de-Lima CG, Previato JO, Mendonça-Previato L. Modulation of Cell Sialoglycophenotype: A Stylish Mechanism Adopted by Trypanosoma cruzi to Ensure Its Persistence in the Infected Host. Front Microbiol 2016; 7:698. [PMID: 27242722 PMCID: PMC4862976 DOI: 10.3389/fmicb.2016.00698] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 04/26/2016] [Indexed: 01/04/2023] Open
Abstract
Trypanosoma cruzi, the etiological agent of Chagas disease exhibits multiple mechanisms to guarantee its establishment and persistence in the infected host. It has been well demonstrated that T. cruzi is not able to synthesize sialic acids (Sia). To acquire the monosaccharide, the parasite makes use of a multifunctional enzyme called trans-sialidase (Tc-TS). Since this enzyme has no analogous in the vertebrate host, it has been used as a target in drug therapy development. Tc-TS preferentially catalyzes the transfer of Sia from the host glycoconjugates to the terminal β-galactopyranosyl residues of mucin-like molecules present on the parasite's cell surface. Alternatively, the enzyme can sialylate/re-sialylate glycoconjugates expressed on the surface of host cells. Since its discovery, several studies have shown that T. cruzi employs the Tc-TS activity to modulate the host cell sialoglycophenotype, thus favoring its perpetuation in the infected vertebrate. In this review, we summarize the dynamic of host/parasite sialoglycophenotype modulation, highlighting its role in the subversion of host immune response in order to promote the establishment of persistent chronic infection.
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Affiliation(s)
- Leonardo Freire-de-Lima
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Leonardo M da Fonseca
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Vanessa A da Silva
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Kelli M da Costa
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Alexandre Morrot
- Instituto de Microbiologia Professor Paulo de Góes, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Célio G Freire-de-Lima
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Jose O Previato
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Lucia Mendonça-Previato
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
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Tritsch D, Zinglé C, Rohmer M, Grosdemange-Billiard C. Flavonoids: true or promiscuous inhibitors of enzyme? The case of deoxyxylulose phosphate reductoisomerase. Bioorg Chem 2015; 59:140-4. [PMID: 25800132 DOI: 10.1016/j.bioorg.2015.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 02/11/2015] [Accepted: 02/23/2015] [Indexed: 10/23/2022]
Abstract
Flavonoids, due to their physical and chemical properties (among them hydrophobicity and metal chelation abilities), are potential inhibitors of the 1-deoxyxylulose 5-phosphate reductoisomerase and most of the tested flavonoids effectively inhibited its activity with encouraging IC50 values in the micromolar range. The addition of 0.01% Triton X100 in the assays led however, to a dramatic decrease of the inhibition revealing that a non-specific inhibition probably takes place. Our study highlights the possibility of erroneous conclusions regarding the inhibition of enzymes by flavonoids that are able to produce aggregates in micromolar range. Therefore, the addition of a detergent in the assays prevents possible false positive hits in high throughput screenings.
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Affiliation(s)
- Denis Tritsch
- Université de Strasbourg/CNRS, Strasbourg, UMR 7177, Institut Le Bel, 4 rue Blaise Pascal, 67081 Strasbourg, France.
| | - Catherine Zinglé
- Université de Strasbourg/CNRS, Strasbourg, UMR 7177, Institut Le Bel, 4 rue Blaise Pascal, 67081 Strasbourg, France
| | - Michel Rohmer
- Université de Strasbourg/CNRS, Strasbourg, UMR 7177, Institut Le Bel, 4 rue Blaise Pascal, 67081 Strasbourg, France
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Matos RBD, Braga-de-Souza S, Pitanga BPS, Silva VDAD, Jesus EEVD, Pinheiro AM, Costa MDFD, El-Bacha RDS, Ribeiro CSDO, Costa SL. Flavonoids modulate the proliferation of Neospora caninum in glial cell primary cultures. THE KOREAN JOURNAL OF PARASITOLOGY 2014; 52:613-9. [PMID: 25548412 PMCID: PMC4277023 DOI: 10.3347/kjp.2014.52.6.613] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 09/05/2014] [Accepted: 09/06/2014] [Indexed: 11/23/2022]
Abstract
Neospora caninum (Apicomplexa; Sarcocystidae) is a protozoan that causes abortion in cattle, horses, sheep, and dogs as well as neurological and dermatological diseases in dogs. In the central nervous system of dogs infected with N. caninum, cysts were detected that exhibited gliosis and meningitis. Flavonoids are polyphenolic compounds that exhibit antibacterial, antiparasitic, antifungal, and antiviral properties. In this study, we investigated the effects of flavonoids in a well-established in vitro model of N. caninum infection in glial cell cultures. Glial cells were treated individually with 10 different flavonoids, and a subset of cultures was also infected with the NC-1 strain of N. caninum. All of the flavonoids tested induced an increase in the metabolism of glial cells and many of them increased nitrite levels in cultures infected with NC-1 compared to controls and uninfected cultures. Among the flavonoids tested, 3',4'-dihydroxyflavone, 3',4',5,7-tetrahydroxyflavone (luteolin), and 3,3',4',5,6-pentahydroxyflavone (quercetin), also inhibited parasitophorous vacuole formation. Taken together, our findings show that flavonoids modulate glial cell responses, increase NO secretion, and interfere with N. caninum infection and proliferation.
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Affiliation(s)
- Rosan Barbosa de Matos
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Suzana Braga-de-Souza
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Bruno Pena Seara Pitanga
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Victor Diógenes Amaral da Silva
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Erica Etelvina Viana de Jesus
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Alexandre Morales Pinheiro
- Laboratório de Bioquímica e Imunologia Veterinária, Universidade Federal do Recôncavo da Bahia, Centro de Ciências Agrárias Ambientais e Biológicas, Campus da Universidade, CEP 44380-000, Cruz das Almas, Bahia, Brazil
| | - Maria de Fátima Dias Costa
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Ramon dos Santos El-Bacha
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Cátia Suse de Oliveira Ribeiro
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
| | - Silvia Lima Costa
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon s/n, Vale do Canela, CEP 41100-100, Salvador, Bahia, Brazil
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Trypanosoma cruzi trans-sialidase as a drug target against Chagas disease (American trypanosomiasis). Future Med Chem 2014; 5:1889-900. [PMID: 24144418 DOI: 10.4155/fmc.13.129] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Chagas disease (or American trypanosomiasis) is a deadly tropical disease that affects millions of people worldwide, primarily in rural regions of South America. Trypanosoma cruzi, the parasitic cause of Chagas disease, possesses a membrane-anchored trans-sialidase enzyme that transfers sialic acids from the host cell surface to the parasitic cell surface, allowing T. cruzi to effectively evade the host's immune system. This enzyme has no analogous human counterpart and thus has become an interesting drug target to combat the parasite. Recent computational efforts have improved our knowledge about the enzyme's structure, dynamics and catalyzed reaction. Many compounds have been tested against trans-sialidase activity, but no strong inhibitors have been identified yet. The current lack of drugs for Chagas disease necessitates more R&D into the design and discovery of strong inhibitors of T. cruzi trans-sialidase.
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Lee Y, Ryu YB, Youn HS, Cho JK, Kim YM, Park JY, Lee WS, Park KH, Eom SH. Structural basis of sialidase in complex with geranylated flavonoids as potent natural inhibitors. ACTA CRYSTALLOGRAPHICA. SECTION D, BIOLOGICAL CRYSTALLOGRAPHY 2014; 70:1357-65. [PMID: 24816104 PMCID: PMC4014123 DOI: 10.1107/s1399004714002971] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 02/10/2014] [Indexed: 11/10/2022]
Abstract
Sialidase catalyzes the removal of a terminal sialic acid from glycoconjugates and plays a pivotal role in nutrition, cellular interactions and pathogenesis mediating various infectious diseases including cholera, influenza and sepsis. An array of antiviral sialidase agents have been developed and are commercially available, such as zanamivir and oseltamivir for treating influenza. However, the development of bacterial sialidase inhibitors has been much less successful. Here, natural polyphenolic geranylated flavonoids which show significant inhibitory effects against Cp-NanI, a sialidase from Clostridium perfringens, are reported. This bacterium causes various gastrointestinal diseases. The crystal structure of the Cp-NanI catalytic domain in complex with the best inhibitor, diplacone, is also presented. This structure explains how diplacone generates a stable enzyme-inhibitor complex. These results provide a structural framework for understanding the interaction between sialidase and natural flavonoids, which are promising scaffolds on which to discover new anti-sialidase agents.
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Affiliation(s)
- Youngjin Lee
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
- Steitz Center for Structural Biology, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
| | - Young Bae Ryu
- Infection Control Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Hyung-Seop Youn
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
- Steitz Center for Structural Biology, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
| | - Jung Keun Cho
- Division of Applied Life Science (BK21 Program, IALS), Graduate School of Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Young Min Kim
- Infection Control Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Ji-Young Park
- Infection Control Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Woo Song Lee
- Infection Control Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Ki Hun Park
- Division of Applied Life Science (BK21 Program, IALS), Graduate School of Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Soo Hyun Eom
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
- Steitz Center for Structural Biology, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), Buk-gu, Gwangju 500-712, Republic of Korea
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De Celis SSCR. Surface topology evolution of Trypanosoma trans-sialidase. Subcell Biochem 2014; 74:203-216. [PMID: 24264247 DOI: 10.1007/978-94-007-7305-9_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The trans-sialidase (TS) from Trypanosoma cruzi is a multifunctional protein given by its enzymatic activity and binding properties. The complex structure of TS promotes topology changes over the protozoa's surface with dramatic consequences for its biology. Detailed sequence analyses show that the evolution of TS in T. cruzi and other trypanosomes as well as its genomic organization is even more complex than it has been supposed before. All of these aspects are still neglected when TS is selected as a target for drug design and chemotherapy of Chagas' disease. Herein these aspects are discussed in the context of TS multifunctionality and dynamics drug design.
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Affiliation(s)
- Sergio Steven Cornejo Rubin De Celis
- Laboratorium voor Microbiële Ecologie en Technologie, Faculteit Bio-ingenieurswetenschappen, Universiteit Gent, Coupure Links 653, B-9000, Gent, Belgium,
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de Carvalho da Silva F, Cardoso MFDC, Ferreira PG, Ferreira VF. Biological Properties of 1H-1,2,3- and 2H-1,2,3-Triazoles. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_124] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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31
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Identification of trans-sialidases as a common mediator of endothelial cell activation by African trypanosomes. PLoS Pathog 2013; 9:e1003710. [PMID: 24130501 PMCID: PMC3795030 DOI: 10.1371/journal.ppat.1003710] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 08/30/2013] [Indexed: 12/31/2022] Open
Abstract
Understanding African Trypanosomiasis (AT) host-pathogen interaction is the key to an "anti-disease vaccine", a novel strategy to control AT. Here we provide a better insight into this poorly described interaction by characterizing the activation of a panel of endothelial cells by bloodstream forms of four African trypanosome species, known to interact with host endothelium. T. congolense, T. vivax, and T. b. gambiense activated the endothelial NF-κB pathway, but interestingly, not T. b. brucei. The parasitic TS (trans-sialidases) mediated this NF-κB activation, remarkably via their lectin-like domain and induced production of pro-inflammatory molecules not only in vitro but also in vivo, suggesting a considerable impact on pathogenesis. For the first time, TS activity was identified in T. b. gambiense BSF which distinguishes it from the subspecies T. b. brucei. The corresponding TS were characterized and shown to activate endothelial cells, suggesting that TS represent a common mediator of endothelium activation among trypanosome species with divergent physiopathologies.
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32
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Design of e-pharmacophore models using compound fragments for the trans-sialidase of Trypanosoma cruzi: screening for novel inhibitor scaffolds. J Mol Graph Model 2013; 45:84-97. [PMID: 24012872 DOI: 10.1016/j.jmgm.2013.08.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/31/2013] [Accepted: 08/06/2013] [Indexed: 11/23/2022]
Abstract
Chagas' is a fatal disease that affects millions of people worldwide. The lack of safe and effective treatments for Chagas' highlights the need for the discovery of new drugs to fight the disease. Trypanosoma cruzi, the parasitic cause of Chagas' disease, synthesizes a trans-sialidase (TcTS) enzyme responsible for the transfer of sialic acids from the host cell surface to glycoconjugates on the parasitic cell surface. TcTS has no human analogs and is vital to the life cycle of T. cruzi, making TcTS an important enzyme for drug design against Chagas' disease. We use fragment docking to generate various e-pharmacophore hypotheses depicting protein residues important for ligand binding. Virtual screening of the ZINC Clean Leads database with more than 4 million compounds using the e-pharmacophore models found 82 potential inhibitors of TcTS. Molecular dynamics and free energy of binding calculations were used to rank the compounds based on their affinity for TcTS. Two compounds-ZINC13359679 and ZINC02576132-were found to be the most promising lead candidates for TcTS inhibition, and their binding modes are analyzed in detail.
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33
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Martins-Teixeira MB, Campo VL, Biondo M, Sesti-Costa R, Carneiro ZA, Silva JS, Carvalho I. α-Selective glycosylation affords mucin-related GalNAc amino acids and diketopiperazines active on Trypanosoma cruzi. Bioorg Med Chem 2013; 21:1978-87. [DOI: 10.1016/j.bmc.2013.01.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 01/03/2013] [Accepted: 01/11/2013] [Indexed: 11/28/2022]
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34
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Guegan F, Plazolles N, Baltz T, Coustou V. Erythrophagocytosis of desialylated red blood cells is responsible for anaemia during Trypanosoma vivax infection. Cell Microbiol 2013; 15:1285-303. [PMID: 23421946 DOI: 10.1111/cmi.12123] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 02/05/2013] [Accepted: 02/07/2013] [Indexed: 11/26/2022]
Abstract
Trypanosomal infection-induced anaemia is a devastating scourge for cattle in widespread regions. Although Trypanosoma vivax is considered as one of the most important parasites regarding economic impact in Africa and South America, very few in-depth studies have been conducted due to the difficulty of manipulating this parasite. Several hypotheses were proposed to explain trypanosome induced-anaemia but mechanisms have not yet been elucidated. Here, we characterized a multigenic family of trans-sialidases in T. vivax, some of which are released into the host serum during infection. These enzymes are able to trigger erythrophagocytosis by desialylating the major surface erythrocytes sialoglycoproteins, the glycophorins. Using an ex vivo assay to quantify erythrophagocytosis throughout infection, we showed that erythrocyte desialylation alone results in significant levels of anaemia during the acute phase of the disease. Characterization of virulence factors such as the trans-sialidases is vital to develop a control strategy against the disease or parasite.
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Affiliation(s)
- Fabien Guegan
- Microbiologie fondamentale et Pathogénicité, UMR 5234, Université de Bordeaux, Bordeaux, France
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35
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Kai H, Hinou H, Naruchi K, Matsushita T, Nishimura SI. Macrocyclic Mechanism-Based Inhibitor for Neuraminidases. Chemistry 2012; 19:1364-72. [DOI: 10.1002/chem.201200859] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 10/24/2012] [Indexed: 01/13/2023]
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36
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Freire-de-Lima L, Oliveira IA, Neves JL, Penha LL, Alisson-Silva F, Dias WB, Todeschini AR. Sialic acid: a sweet swing between mammalian host and Trypanosoma cruzi. Front Immunol 2012; 3:356. [PMID: 23230438 PMCID: PMC3515882 DOI: 10.3389/fimmu.2012.00356] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Accepted: 11/08/2012] [Indexed: 02/02/2023] Open
Abstract
Commonly found at the outermost ends of complex carbohydrates in extracellular medium or on outer cell membranes, sialic acids play important roles in a myriad of biological processes. Mammals synthesize sialic acid through a complex pathway, but Trypanosoma cruzi, the agent of Chagas’ disease, evolved to obtain sialic acid from its host through a trans-sialidase (TcTS) reaction. Studies of the parasite cell surface architecture and biochemistry indicate that a unique system comprising sialoglycoproteins and sialyl-binding proteins assists the parasite in several functions including parasite survival, infectivity, and host–cell recognition. Additionally, TcTS activity is capable of extensively remodeling host cell glycomolecules, playing a role as virulence factor. This review presents the state of the art of parasite sialobiology, highlighting how the interplay between host and parasite sialic acid helps the pathogen to evade host defense mechanisms and ensure lifetime host parasitism.
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Affiliation(s)
- Leonardo Freire-de-Lima
- Laboratório de Glicobiologia Estrutural e Funcional, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro Brazil
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37
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dC-Rubin SSC, Schenkman S. Trypanosoma cruzi trans-sialidase as a multifunctional enzyme in Chagas’ disease. Cell Microbiol 2012; 14:1522-30. [DOI: 10.1111/j.1462-5822.2012.01831.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 06/13/2012] [Accepted: 06/18/2012] [Indexed: 11/27/2022]
Affiliation(s)
| | - Sergio Schenkman
- Departamento de Microbiologia; Imunologia e Parasitologia; Universidade Federal de São Paulo; UNIFESP; São Paulo; Brasil
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Abstract
The Trypanosoma cruzi genome contains the most widely expanded content (∼12,000 genes) of the trypanosomatids sequenced to date. This expansion is reflected in the high number of repetitive sequences and particularly in the large quantity of genes that make up its multigene families. Recently it was discovered that the contents of these families vary between phylogenetically unrelated strains. We review the basic characteristics of trans-sialidases and mucins as part of the mechanisms of immune evasion of T. cruzi and as ligands and factors involved in the cross talk between the host cell and the parasite. We also show recently published data describing two new multigene families, DGF-1 and MASP, that form an important part of the scenario representing the complex biology of T. cruzi.
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39
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Design, synthesis and the effect of 1,2,3-triazole sialylmimetic neoglycoconjugates on Trypanosoma cruzi and its cell surface trans-sialidase. Bioorg Med Chem 2012; 20:145-56. [DOI: 10.1016/j.bmc.2011.11.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 11/04/2011] [Accepted: 11/11/2011] [Indexed: 11/18/2022]
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40
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Trypanosomal Trans-sialidases: Valuable Synthetic Tools and Targets for Medicinal Chemistry. Top Curr Chem (Cham) 2012; 367:231-50. [DOI: 10.1007/128_2012_330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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41
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Schauer R, Kamerling JP. The Chemistry and Biology of Trypanosomal trans-Sialidases: Virulence Factors in Chagas Disease and Sleeping Sickness. Chembiochem 2011; 12:2246-64. [DOI: 10.1002/cbic.201100421] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Indexed: 11/10/2022]
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42
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Giorgi ME, de Lederkremer RM. Trans-sialidase and mucins of Trypanosoma cruzi: an important interplay for the parasite. Carbohydr Res 2011; 346:1389-93. [PMID: 21645882 DOI: 10.1016/j.carres.2011.04.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 03/21/2011] [Accepted: 04/04/2011] [Indexed: 12/12/2022]
Abstract
A dense glycocalix covers the surface of Trypanosoma cruzi, the agent of Chagas disease. Sialic acid in the surface of the parasite plays an important role in the infectious process, however, T. cruzi is unable to synthesize sialic acid or the usual donor CMP-sialic acid. Instead, T. cruzi expresses a unique enzyme, the trans-sialidase (TcTS) involved in the transfer of sialic acid from host glycoconjugates to mucins of the parasite. The mucins are the major glycoproteins in the insect stage epimastigotes and in the infective trypomastigotes. Both, the mucins and the TcTS are anchored to the plasma membrane by a glycosylphosphatidylinositol anchor. Thus, TcTS may be shed into the bloodstream of the mammal host by the action of a parasite phosphatidylinositol-phospholipase C, affecting the immune system. The composition and structure of the sugars in the parasite mucins is characteristic of each differentiation stage, also, interstrain variations were described for epimastigote mucins. This review focus on the characteristics of the interplay between the trans-sialidase and the mucins of T. cruzi and summarizes the known carbohydrate structures of the mucins.
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Affiliation(s)
- M Eugenia Giorgi
- CIHIDECAR, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
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43
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Hinou H, Miyoshi R, Takasu Y, Kai H, Kurogochi M, Arioka S, Gao XD, Miura N, Fujitani N, Omoto S, Yoshinaga T, Fujiwara T, Noshi T, Togame H, Takemoto H, Nishimura SI. A Strategy for Neuraminidase Inhibitors Using Mechanism-Based Labeling Information. Chem Asian J 2011; 6:1048-56. [DOI: 10.1002/asia.201000594] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Indexed: 11/10/2022]
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44
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Giorgi ME, Ratier L, Agusti R, Frasch ACC, de Lederkremer RM. Synthesis of PEGylated lactose analogs for inhibition studies on T.cruzi trans-sialidase. Glycoconj J 2010; 27:549-59. [DOI: 10.1007/s10719-010-9300-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 06/29/2010] [Accepted: 06/30/2010] [Indexed: 10/19/2022]
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