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Chaudhary A, Chaurasia PK, Kushwaha S, Chauhan P, Chawade A, Mani A. Correlating multi-functional role of cold shock domain proteins with intrinsically disordered regions. Int J Biol Macromol 2022; 220:743-753. [PMID: 35987358 DOI: 10.1016/j.ijbiomac.2022.08.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/26/2022] [Accepted: 08/14/2022] [Indexed: 11/05/2022]
Abstract
Cold shock proteins (CSPs) are an ancient and conserved family of proteins. They are renowned for their role in response to low-temperature stress in bacteria and nucleic acid binding activities. In prokaryotes, cold and non-cold inducible CSPs are involved in various cellular and metabolic processes such as growth and development, osmotic oxidation, starvation, stress tolerance, and host cell invasion. In prokaryotes, cold shock condition reduces cell transcription and translation efficiency. Eukaryotic cold shock domain (CSD) proteins are evolved form of prokaryotic CSPs where CSD is flanked by N- and C-terminal domains. Eukaryotic CSPs are multi-functional proteins. CSPs also act as nucleic acid chaperons by preventing the formation of secondary structures in mRNA at low temperatures. In human, CSD proteins play a crucial role in the progression of breast cancer, colon cancer, lung cancer, and Alzheimer's disease. A well-defined three-dimensional structure of intrinsically disordered regions of CSPs family members is still undetermined. In this article, intrinsic disorder regions of CSPs have been explored systematically to understand the pleiotropic role of the cold shock family of proteins.
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Affiliation(s)
- Amit Chaudhary
- Department of Metallurgical Engineering & Materials Science, Indian Institute of Technology Bombay
| | - Pankaj Kumar Chaurasia
- PG Department of Chemistry, L.S. College, Babasaheb Bhimrao Ambedkar Bihar University, Muzaffarpur, Bihar 842001, India
| | - Sandeep Kushwaha
- National Institute of Animal Biotechnology, Hyderabad 500032, India.
| | | | - Aakash Chawade
- Department of Plant Breeding, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden.
| | - Ashutosh Mani
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, India.
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2
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de Lederkremer RM, Giorgi ME, Agusti R. trans-Sialylation: a strategy used to incorporate sialic acid into oligosaccharides. RSC Chem Biol 2022; 3:121-139. [PMID: 35360885 PMCID: PMC8827155 DOI: 10.1039/d1cb00176k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/20/2021] [Indexed: 01/02/2023] Open
Abstract
Sialic acid, as a component of cell surface glycoconjugates, plays a crucial role in recognition events. Efficient synthetic methods are necessary for the supply of sialosides in enough quantities for biochemical and immunological studies. Enzymatic glycosylations obviate the steps of protection and deprotection of the constituent monosaccharides required in a chemical synthesis. Sialyl transferases with CMP-Neu5Ac as an activated donor were used for the construction of α2-3 or α2-6 linkages to terminal galactose or N-acetylgalactosamine units. trans-Sialidases may transfer sialic acid from a sialyl glycoside to a suitable acceptor and specifically construct a Siaα2-3Galp linkage. The trans-sialidase of Trypanosoma cruzi (TcTS), which fulfills an important role in the pathogenicity of the parasite, is the most studied one. The recombinant enzyme was used for the sialylation of β-galactosyl oligosaccharides. One of the main advantages of trans-sialylation is that it circumvents the use of the high energy nucleotide. Easily available glycoproteins with a high content of sialic acid such as fetuin and bovine κ-casein-derived glycomacropeptide (GMP) have been used as donor substrates. Here we review the trans-sialidase from various microorganisms and describe their application for the synthesis of sialooligosaccharides.
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Affiliation(s)
- Rosa M de Lederkremer
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Universidad de Buenos Aires Buenos Aires Argentina
- CONICET - Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR) Buenos Aires Argentina
| | - María Eugenia Giorgi
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Universidad de Buenos Aires Buenos Aires Argentina
- CONICET - Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR) Buenos Aires Argentina
| | - Rosalía Agusti
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Universidad de Buenos Aires Buenos Aires Argentina
- CONICET - Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR) Buenos Aires Argentina
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3
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Cano ME, Jara WE, Cagnoni AJ, Brizzio E, Strumia MC, Repetto E, Uhrig ML. The disulfide bond as a key motif for the construction of multivalent glycoclusters. NEW J CHEM 2022. [DOI: 10.1039/d2nj03071c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
S-Glycosylated dendrons having a thioacetate group in their focal points led to multivalent glycoclusters by spontaneous O2-oxidation of sulfides.
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Affiliation(s)
- María Emilia Cano
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EGA Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), C1428EGA Buenos Aires, Argentina
| | - Walter Emiliano Jara
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EGA Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), C1428EGA Buenos Aires, Argentina
| | - Alejandro J. Cagnoni
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, C1428ADN Buenos Aires, Argentina
| | - Emmanuel Brizzio
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EGA Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), C1428EGA Buenos Aires, Argentina
| | - Miriam C. Strumia
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Química Orgánica. Av. Haya de la Torre esq. Av. Medina Allende, Córdoba, X5000HUA, Argentina
- CONICET, Instituto de Investigación y Desarrollo en Ingeniería de Procesos y Química Aplicada (IPQA). Av. Velez Sárfield 1611, Córdoba, X5000HUA, Argentina
| | - Evangelina Repetto
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EGA Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), C1428EGA Buenos Aires, Argentina
| | - María Laura Uhrig
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EGA Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), C1428EGA Buenos Aires, Argentina
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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] [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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Montenegro HO, Di Chenna PH, Spagnuolo CC, Uhrig ML. Multivalent assembly of a pyrene functionalized thio-N-acetylglucosamine: Synthesis, spectroscopic and WGA binding studies. Carbohydr Res 2019; 479:6-12. [DOI: 10.1016/j.carres.2019.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/12/2019] [Accepted: 04/29/2019] [Indexed: 11/26/2022]
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Agusti R, Gallo-Rodriguez C, de Lederkremer RM. Trypanosoma cruzi trans-sialidase. A tool for the synthesis of sialylated oligosaccharides. Carbohydr Res 2019; 479:48-58. [PMID: 31132642 DOI: 10.1016/j.carres.2019.05.004] [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: 03/12/2019] [Revised: 05/07/2019] [Accepted: 05/15/2019] [Indexed: 12/14/2022]
Abstract
Cells are covered by a complex array of carbohydrates. Among them, sialosides are of key importance in intracellular adhesion, recognition and signaling. The need for structurally diverse sialosides impelled the search for efficient synthetic methods since their isolation from natural sources is a difficult task. The enzymatic approach obviates the need of a chemical synthesis for protecting or participating groups in the substrates. The trans-sialidase of Trypanosoma cruzi (TcTS) is highly stereospecific for the transfer of sialic acid from an α-sialylglycoside donor to a terminal β-galactopyranosyl unit in the acceptor substrate to form the α-Neu5Ac-(2 → 3)-β-D-Galp motif. The enzyme was cloned and easily available glycoproteins, e.g. fetuin, may be used as donors of sialic acid, constituting strong points for the scalability of TcTS-catalyzed reactions. This review outlines the preparative use of TcTS for the sialylation of oligosaccharides. A detailed description of the substrates used as sialic acid donors, the acceptor substrates and the methods employed to monitor the reaction is included.
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Affiliation(s)
- Rosalía 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
| | - Carola Gallo-Rodriguez
- 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
| | - Rosa M de Lederkremer
- 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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7
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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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da Fonseca LM, da Costa KM, Chaves VDS, Freire-de-Lima CG, Morrot A, Mendonça-Previato L, Previato JO, Freire-de-Lima L. Theft and Reception of Host Cell's Sialic Acid: Dynamics of Trypanosoma Cruzi Trans-sialidases and Mucin-Like Molecules on Chagas' Disease Immunomodulation. Front Immunol 2019; 10:164. [PMID: 30787935 PMCID: PMC6372544 DOI: 10.3389/fimmu.2019.00164] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/18/2019] [Indexed: 12/27/2022] Open
Abstract
The last decades have produced a plethora of evidence on the role of glycans, from cell adhesion to signaling pathways. Much of that information pertains to their role on the immune system and their importance on the surface of many human pathogens. A clear example of this is the flagellated protozoan Trypanosoma cruzi, which displays on its surface a great variety of glycoconjugates, including O-glycosylated mucin-like glycoproteins, as well as multiple glycan-binding proteins belonging to the trans-sialidase (TS) family. Among the latter, different and concurrently expressed molecules may present or not TS activity, and are accordingly known as active (aTS) and inactive (iTS) members. Over the last thirty years, it has been well described that T. cruzi is unable to synthesize sialic acid (SIA) on its own, making use of aTS to steal the host's SIA. Although iTS did not show enzymatic activity, it retains a substrate specificity similar to aTS (α-2,3 SIA-containing glycotopes), displaying lectinic properties. It is accepted that aTS members act as virulence factors in mammals coursing the acute phase of the T. cruzi infection. However, recent findings have demonstrated that iTS may also play a pathogenic role during T. cruzi infection, since it modulates events related to adhesion and invasion of the parasite into the host cells. Since both aTS and iTS proteins share structural substrate specificity, it might be plausible to speculate that iTS proteins are able to assuage and/or attenuate biological phenomena depending on the catalytic activity displayed by aTS members. Since SIA-containing glycotopes modulate the host immune system, it should not come as any surprise that changes in the sialylation of parasite's mucin-like molecules, as well as host cell glycoconjugates might disrupt critical physiological events, such as the building of effective immune responses. This review aims to discuss the importance of mucin-like glycoproteins and both aTS and iTS for T. cruzi biology, as well as to present a snapshot of how disturbances in both parasite and host cell sialoglycophenotypes may facilitate the persistence of T. cruzi in the infected mammalian host.
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Affiliation(s)
- Leonardo Marques da Fonseca
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Kelli Monteiro da Costa
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Victoria de Sousa Chaves
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Célio Geraldo Freire-de-Lima
- Laboratório de Imunomodulação, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alexandre Morrot
- Laboratório de Pesquisa em Tuberculose, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório de Imunoparasitologia, Fundação Oswaldo Cruz, 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
| | - Jose Osvaldo 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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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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Lara-Ramirez EE, López-Cedillo JC, Nogueda-Torres B, Kashif M, Garcia-Perez C, Bocanegra-Garcia V, Agusti R, Uhrig ML, Rivera G. An in vitro and in vivo evaluation of new potential trans -sialidase inhibitors of Trypanosoma cruzi predicted by a computational drug repositioning method. Eur J Med Chem 2017; 132:249-261. [DOI: 10.1016/j.ejmech.2017.03.063] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/24/2017] [Accepted: 03/25/2017] [Indexed: 12/16/2022]
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11
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Synthesis of β-galactosylamides as ligands of the peanut lectin. Insights into the recognition process. Carbohydr Res 2017; 443-444:58-67. [PMID: 28355582 DOI: 10.1016/j.carres.2017.03.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/16/2017] [Accepted: 03/22/2017] [Indexed: 11/21/2022]
Abstract
The synthesis of mono and divalent β-galactosylamides linked to a hydroxylated chain having a C2 symmetry axis derived from l-tartaric anhydride is reported. Reference compounds devoid of hydroxyl groups in the linker were also prepared from β-galactosylamine and succinic anhydride. After functionalization with an alkynyl residue, the resulting building blocks were grafted onto different azide-equipped scaffolds through the copper catalyzed azide-alkyne cycloaddition. Thus, a family of structurally related mono and divalent β-N-galactopyranosylamides was obtained and fully characterized. The binding affinities of the ligands towards the model lectin PNA were measured by the enzyme-linked lectin assay (ELLA). The IC50 values were significantly higher than that of galactose but the presence of hydroxyl groups in the aglycone chain improved lectin recognition. Docking and molecular dynamics experiments were in accordance with the hypothesis that a hydroxyl group properly disposed in the linker could mimic the Glc O3 in the recognition process. On the other hand, divalent presentation of the ligands led to lectin affinity enhancements.
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12
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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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Cano ME, Di Chenna PH, Lesur D, Wolosiuk A, Kovensky J, Uhrig ML. Chirality inversion, supramolecular hydrogelation and lectin binding of two thiolactose amphiphiles constructed on a di-lauroyl-l-tartaric acid scaffold. NEW J CHEM 2017. [DOI: 10.1039/c7nj02941a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The supramolecular self-assembly mode of two diacyl-glycoamphiphiles depends on the length of the flexible achiral ethoxylated linker.
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Affiliation(s)
- María Emilia Cano
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Orgánica
- Pabellón 2
- Ciudad Universitaria
| | - Pablo Héctor Di Chenna
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Orgánica
- Pabellón 2
- Ciudad Universitaria
| | - David Lesur
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources (LG2A)-CNRS UMR 7378
- Université de Picardie Jules Verne
- 33 rue Saint Leu
- 80039 Amiens Cedex
| | - Alejandro Wolosiuk
- Gerencia Química – Centro Atómico Constituyentes – Comisión Nacional de Energía Atómica – CONICET. Av. Gral. Paz 1499
- Buenos Aires
- Argentina
- Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica, Analítica y Química Física, Pabellón 2
| | - José Kovensky
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources (LG2A)-CNRS UMR 7378
- Université de Picardie Jules Verne
- 33 rue Saint Leu
- 80039 Amiens Cedex
| | - María Laura Uhrig
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Orgánica
- Pabellón 2
- Ciudad Universitaria
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Multivalent sialylation of β-thio-glycoclusters by Trypanosoma cruzi trans sialidase and analysis by high performance anion exchange chromatography. Glycoconj J 2016; 33:809-18. [DOI: 10.1007/s10719-016-9676-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 04/22/2016] [Accepted: 05/10/2016] [Indexed: 12/11/2022]
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