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Burcu Gürdere M, Aydin A, Yencilek B, Ertürk F, Özbek O, Erkan S, Budak Y, Ceylan M. Synthesis, Antiproliferative and Cytotoxic Activities, DNA Binding Features and Molecular Docking Study of Novel Enamine Derivatives. Chem Biodivers 2020; 17:e2000139. [PMID: 32374947 DOI: 10.1002/cbdv.202000139] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/05/2020] [Indexed: 11/09/2022]
Abstract
Novel enamine derivatives were synthesized from the reaction of lactone and chalcones and their antiproliferative and cytotoxic activities against six cancer cell lines (e. g., HeLa, HT29, A549, MCF7, PC3 and Hep3B) and one normal cell lines (e. g., FL) were investigated along with their mode of interactions with CT-DNA. Most of the enamine derivatives with IC50 values of 86-168 μM demonstrated much stronger antiproliferative activity than the starting molecules against the cancer cells. While, among the enamine derivatives, four compounds displayed higher cytotoxic potency than the control drugs (5-fluorouracil and cisplatin) against the Hep3B cell lines, these compounds did not exhibit any significant toxicity against normal cells, FL. The UV/VIS spectral data suggest that eight compounds cause hypochromism with a slight bathochromic shift (∼6 nm), indicating that they bind to the DNA by way of an intercalative or minor groove binding mode. The binding constants of the compounds are in the range of 0.1×103 M-1 -2.3×104 M-1 . The antiproliferative activity of studied enamine derivatives could possibly be due to their DNA binding as well as their cytotoxic properties. In addition to these assays, the chalcones and enamine derivatives were investigated by molecular docking to calculate the synergistic effect of antiproliferative activities against six human cancer cell lines.
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Affiliation(s)
- Meliha Burcu Gürdere
- Department of Chemistry, Faculty of Arts and Sciences, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
| | - Ali Aydin
- Department of Basic Medical Science, Faculty of Medicine, Yozgat Bozok University, 66100, Yozgat, Turkey
| | - Belkız Yencilek
- Department of Chemistry, Faculty of Arts and Sciences, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
| | - Fatih Ertürk
- Vocational School, Occupational Health and Safety Program, Istanbul Arel University, 34100, Istanbul, Turkey
| | - Oğuz Özbek
- Department of Chemistry, Faculty of Arts and Sciences, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
| | - Sultan Erkan
- Chemistry and Chemical Processing Technologies, Yıldızeli Vocational School, Sivas Cumhuriyet University, 58140, Sivas, Turkey
| | - Yakup Budak
- Department of Chemistry, Faculty of Arts and Sciences, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
| | - Mustafa Ceylan
- Department of Chemistry, Faculty of Arts and Sciences, Tokat Gaziosmanpaşa University, 60250, Tokat, Turkey
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Singh RS, Walia AK, Kennedy JF. Mushroom lectins in biomedical research and development. Int J Biol Macromol 2020; 151:1340-1350. [DOI: 10.1016/j.ijbiomac.2019.10.180] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022]
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Sialic acid and biology of life: An introduction. SIALIC ACIDS AND SIALOGLYCOCONJUGATES IN THE BIOLOGY OF LIFE, HEALTH AND DISEASE 2020. [PMCID: PMC7153325 DOI: 10.1016/b978-0-12-816126-5.00001-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sialic acids are important molecule with high structural diversity. They are known to occur in higher animals such as Echinoderms, Hemichordata, Cephalochorda, and Vertebrata and also in other animals such as Platyhelminthes, Cephalopoda, and Crustaceae. Plants are known to lack sialic acid. But they are reported to occur in viruses, bacteria, protozoa, and fungi. Deaminated neuraminic acid although occurs in vertebrates and bacteria, is reported to occur in abundance in the lower vertebrates. Sialic acids are mostly located in terminal ends of glycoproteins and glycolipids, capsular and tissue polysialic acids, bacterial lipooligosaccharides/polysaccharides, and in different forms that dictate their role in biology. Sialic acid play important roles in human physiology of cell-cell interaction, communication, cell-cell signaling, carbohydrate-protein interactions, cellular aggregation, development processes, immune reactions, reproduction, and in neurobiology and human diseases in enabling the infection process by bacteria and virus, tumor growth and metastasis, microbiome biology, and pathology. It enables molecular mimicry in pathogens that allows them to escape host immune responses. Recently sialic acid has found role in therapeutics. In this chapter we have highlighted the (i) diversity of sialic acid, (ii) their occurrence in the diverse life forms, (iii) sialylation and disease, and (iv) sialic acid and therapeutics.
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Machon O, Varrot A. Expression, Purification, and Applications of the Recombinant Lectin PVL from Psathyrella velutina Specific for Terminal N-Acetyl-Glucosamine. Methods Mol Biol 2020; 2132:421-436. [PMID: 32306349 DOI: 10.1007/978-1-0716-0430-4_41] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The lectin PVL from the mushroom Psathyrella velutina is the founding member of novel family of fungal lectins. It adopts a seven bladed β-propeller presenting six binding sites specific for the recognition of non-reducing terminal N-acetyl-glucosamine (GlcNAc). The latest can be mainly found in glycoconjugates presenting truncated glycans where aberrant β-GlcNAc terminated glycans represent tumor markers. It can also be found in O-GlcNAcylated proteins where disruption of the O-GlcNAcylation homeostasis is associated with many physiopathological states. The recombinant PVL lectin proved to be a very powerful tool for labelling terminal GlcNAc antigens displayed by extracellular glycoconjugates but also by O-GlcNAcylated proteins found in the cytoplasm and nucleus. This chapter will describe how to produce and purify recombinant PVL and several applications for rPVL as probe for the detection of terminal O-GlcNAc.
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Affiliation(s)
- Oriane Machon
- Univ. Grenoble Alpes, CNRS, CERMAV, Grenoble, France
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Barre A, Bourne Y, Van Damme EJM, Rougé P. Overview of the Structure⁻Function Relationships of Mannose-Specific Lectins from Plants, Algae and Fungi. Int J Mol Sci 2019; 20:E254. [PMID: 30634645 PMCID: PMC6359319 DOI: 10.3390/ijms20020254] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/29/2018] [Accepted: 12/31/2018] [Indexed: 01/05/2023] Open
Abstract
To date, a number of mannose-binding lectins have been isolated and characterized from plants and fungi. These proteins are composed of different structural scaffold structures which harbor a single or multiple carbohydrate-binding sites involved in the specific recognition of mannose-containing glycans. Generally, the mannose-binding site consists of a small, central, carbohydrate-binding pocket responsible for the "broad sugar-binding specificity" toward a single mannose molecule, surrounded by a more extended binding area responsible for the specific recognition of larger mannose-containing N-glycan chains. Accordingly, the mannose-binding specificity of the so-called mannose-binding lectins towards complex mannose-containing N-glycans depends largely on the topography of their mannose-binding site(s). This structure⁻function relationship introduces a high degree of specificity in the apparently homogeneous group of mannose-binding lectins, with respect to the specific recognition of high-mannose and complex N-glycans. Because of the high specificity towards mannose these lectins are valuable tools for deciphering and characterizing the complex mannose-containing glycans that decorate both normal and transformed cells, e.g., the altered high-mannose N-glycans that often occur at the surface of various cancer cells.
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Affiliation(s)
- Annick Barre
- UMR 152 PharmaDev, Institut de Recherche et Développement, Faculté de Pharmacie, Université Paul Sabatier, 35 Chemin des Maraîchers, 31062 Toulouse, France.
| | - Yves Bourne
- Centre National de la Recherche Scientifique, Aix-Marseille Univ, Architecture et Fonction des Macromolécules Biologiques, 163 Avenue de Luminy, 13288 Marseille, France.
| | - Els J M Van Damme
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000 Ghent, Belgium.
| | - Pierre Rougé
- UMR 152 PharmaDev, Institut de Recherche et Développement, Faculté de Pharmacie, Université Paul Sabatier, 35 Chemin des Maraîchers, 31062 Toulouse, France.
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Kock M, Brückner S, Wozniak N, Maestre-Reyna M, Veelders M, Schlereth J, Mösch HU, Essen LO. Structural and Functional Characterization of PA14/Flo5-Like Adhesins From Komagataella pastoris. Front Microbiol 2018; 9:2581. [PMID: 30425696 PMCID: PMC6218569 DOI: 10.3389/fmicb.2018.02581] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 10/10/2018] [Indexed: 12/19/2022] Open
Abstract
Cell–cell and cell-substrate based adhesion of yeasts are major determinants of their adoption of different life styles. Genome-mining of ascomycetous GPI-anchored cell wall proteins with lectin-like PA14 domains identified a unique class of putative adhesins in the clade of methylotrophic Komagataella yeasts, many of which are known to colonize plants and insects involving yet unknown adhesion mechanisms. Here, we report the functional and structural analysis of two of its members: KpFlo1 (=Cea1), that is highly specific for terminal N-acetylglucosamine moieties, and KpFlo2, which represents an orphan lectin with intact binding site but unknown specificity. Crystal structures of the Cea1 adhesion domain complexed to N-acetylglucosamine and N,N′-diacetylchitobiose reveal a Ca2+-dependent binding mode that differs from other members of the PA14/Flo5 adhesin family. Heterologous expression of Cea1A in Saccharomyces cerevisiae promotes cellular adhesion to non-reducing ends of non-crystalline chitin. Overall, our data suggest that high-affinity recognition of β-GlcNAc-capped glycans by Cea1 enable Komagataella species to interact with surface cues present in fungi and insects.
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Affiliation(s)
- Michael Kock
- Department of Biochemistry, Faculty of Chemistry, Philipps University of Marburg, Marburg, Germany
| | - Stefan Brückner
- Department of Genetics, Faculty of Biology, Philipps University of Marburg, Marburg, Germany
| | - Nina Wozniak
- Department of Genetics, Faculty of Biology, Philipps University of Marburg, Marburg, Germany
| | | | - Maik Veelders
- Department of Biochemistry, Faculty of Chemistry, Philipps University of Marburg, Marburg, Germany
| | - Julia Schlereth
- Department of Biochemistry, Faculty of Chemistry, Philipps University of Marburg, Marburg, Germany
| | - Hans-Ulrich Mösch
- Department of Genetics, Faculty of Biology, Philipps University of Marburg, Marburg, Germany.,LOEWE Center for Synthetic Microbiology, Philipps University of Marburg, Marburg, Germany
| | - Lars-Oliver Essen
- Department of Biochemistry, Faculty of Chemistry, Philipps University of Marburg, Marburg, Germany.,LOEWE Center for Synthetic Microbiology, Philipps University of Marburg, Marburg, Germany
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Making Use of Genomic Information to Explore the Biotechnological Potential of Medicinal Mushrooms. MEDICINAL AND AROMATIC PLANTS OF THE WORLD 2017. [DOI: 10.1007/978-981-10-5978-0_13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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