1
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Purić E, Nilsson UJ, Anderluh M. Galectin-8 inhibition and functions in immune response and tumor biology. Med Res Rev 2024; 44:2236-2265. [PMID: 38613488 DOI: 10.1002/med.22041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 03/03/2024] [Accepted: 03/29/2024] [Indexed: 04/15/2024]
Abstract
Galectins are among organisms' most abundantly expressed lectins (carbohydrate-binding proteins) that specifically bind β-galactosides. They act not only outside the cell, where they bind to extracellular matrix glycans, but also inside the cell, where they have a significant impact on signaling pathways. Galectin-8 is a galectin family protein encoded by the LGALS8 gene. Its role is evident in both T- and B-cell immunity and in the innate immune response, where it acts directly on dendritic cells and induces some pro-inflammatory cytokines. Galectin-8 also plays an important role in the defense against bacterial and viral infections. It is known to promote antibacterial autophagy by recognizing and binding glycans present on the vacuolar membrane, thus acting as a danger receptor. The most important role of galectin-8 is the regulation of cancer growth, metastasis, tumor progression, and tumor cell survival. Importantly, the expression of galectins is typically higher in tumor tissues than in noncancerous tissues. In this review article, we focus on galectin-8 and its function in immune response, microbial infections, and cancer. Given all of these functions of galectin-8, we emphasize the importance of developing new and selective galectin-8 inhibitors and report the current status of their development.
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Affiliation(s)
- Edvin Purić
- Department of Pharmaceutical Chemistry, University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Ulf J Nilsson
- Department of Chemistry, Lund University, Lund, Sweden
| | - Marko Anderluh
- Department of Pharmaceutical Chemistry, University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
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2
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Ji RC. The emerging importance of lymphangiogenesis in aging and aging-associated diseases. Mech Ageing Dev 2024:111975. [PMID: 39089499 DOI: 10.1016/j.mad.2024.111975] [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: 05/15/2024] [Revised: 07/17/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Lymphatic aging represented by cellular and functional changes, is involved in increased geriatric disorders, but the intersection between aging and lymphatic modulation is less clear. Lymphatic vessels play an essential role in maintaining tissue fluid homeostasis, regulating immune function, and promoting macromolecular transport. Lymphangiogenesis and lymphatic remodeling following cellular senescence and organ deterioration are crosslinked with the progression of some lymphatic-associated diseases, e.g., atherosclerosis, inflammation, lymphoedema, and cancer. Age-related detrimental tissue changes may occur in lymphatic vessels with diverse etiologies, and gradually shift towards chronic low-grade inflammation, so-called inflammaging, and lead to decreased immune response. The investigation of the relationship between advanced age and organ deterioration is becoming an area of rapidly increasing significance in lymphatic biology and medicine. Here we highlight the emerging importance of lymphangiogenesis and lymphatic remodeling in the regulation of aging-related pathological processes, which will help to find new avenues for effective intervention to promote healthy aging.
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Affiliation(s)
- Rui-Cheng Ji
- Faculty of Welfare and Health Science, Oita University, Oita 870-1192, Japan.
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3
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Vrbata D, Červený J, Kulik N, Hovorková M, Balogová S, Vlachová M, Pelantová H, Křen V, Bojarová P. Glycomimetic inhibitors of tandem-repeat galectins: Simple and efficient. Bioorg Chem 2024; 145:107231. [PMID: 38394919 DOI: 10.1016/j.bioorg.2024.107231] [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: 11/28/2023] [Revised: 02/13/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
The binding of human galectins by glycomimetic inhibitors is a promising therapeutic approach. The structurally distinct group of tandem-repeat galectins has scarcely been studied so far, and there is hardly any knowledge on their ligand specificity or their inhibitory potential, particularly concerning non-natural carbohydrates. Here, we present the synthesis of a library of seven 3-O-disubstituted thiodigalactoside-derived glycomimetics and their affinity to two tandem-repeat galectins, Gal-8 and Gal-9. The straightforward synthesis of these glycomimetics involved dibutyltin oxide-catalyzed 3,3́-O-disubstitution of commercially available unprotected thiodigalactoside, and conjugation of various aryl substituents by copper-catalyzed Huisgen azide-alkyne cycloaddition (CuAAC). The inhibitory potential of the prepared glycomimetics for Gal-8 and Gal-9 was assessed, and compared with the established galectins Gal-1 and Gal-3. The introduction of C-3 substituents resulted in an over 40-fold increase in affinity compared with unmodified TDG. The structure-affinity relations within the studied series were discussed using molecular modeling. Furthermore, the prepared glycomimetics were shown to scavenge Gal-8 and Gal-9 from the surface of cancer cells. This pioneering study on the synthetic inhibitors especially of Gal-9 identified lead compounds that may be used in further biomedical research.
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Affiliation(s)
- David Vrbata
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic
| | - Jakub Červený
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic; Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, CZ-128 43 Prague 2, Czech Republic
| | - Natalia Kulik
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic
| | - Michaela Hovorková
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic; Department of Genetics and Microbiology, Faculty of Science, Charles University, Viničná 5, CZ-128 43 Prague 2, Czech Republic
| | - Soňa Balogová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic; Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, CZ-128 43 Prague 2, Czech Republic
| | - Miluše Vlachová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic
| | - Helena Pelantová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic
| | - Vladimír Křen
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic
| | - Pavla Bojarová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-142 00, Prague 4, Czech Republic; Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering, Czech Technical University in Prague, nám. Sítná 3105, CZ-272 01 Kladno, Czech Republic.
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4
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Zhang H, Wang X, Wan Y, Liu L, Zhou J, Li P, Xu B. Discovery of N-Arylsulfonyl-Indole-2-Carboxamide Derivatives as Galectin-3 and Galectin-8 C-Terminal Domain Inhibitors. ACS Med Chem Lett 2023; 14:1257-1265. [PMID: 37736168 PMCID: PMC10510525 DOI: 10.1021/acsmedchemlett.3c00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/10/2023] [Indexed: 09/23/2023] Open
Abstract
Both galectin-3 and galectin-8 are involved in cell adhesion, migration, apoptosis, angiogenesis, and inflammatory processes by recognizing galactose-containing glycoproteins. Inhibiting galectin-3/8 activities is a potential treatment for cancer and tissue fibrosis. Herein, a series of novel N-arylsulfonyl-5-aryloxy-indole-2-carboxamide derivatives was disclosed as dual inhibitors toward galectin-3 and galectin-8 C-terminal domain with Kd values of low micromolar level (Cpd53, gal-3: Kd= 4.12 μM, gal-8C: Kd= 6.04 μM; Cpd57, gal-3: Kd= 12.8 μM, gal-8C: Kd= 2.06 μM), which are the most potent and selective noncarbohydrate-based inhibitors toward gal-3/8 isoforms to date. The molecular docking investigations suggested that the unique amino acids Arg144 in galectin-3 and Ser213 in galectin-8C could contribute to their potency and selectivity. The scratch wound assay demonstrated that Cpd53 and Cpd57 were able to inhibit the MRC-5 lung fibroblast cells migration as well. This class of inhibitors could serve as a new starting point for further discovering structurally distinct gal-3 and gal-8C inhibitors to be used in cancer and tissue fibrosis treatment.
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Affiliation(s)
- Haoming Zhang
- Beijing
Key Laboratory of Active Substances Discovery and Druggability Evaluation,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaoyu Wang
- Beijing
Key Laboratory of Active Substances Discovery and Druggability Evaluation,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yanjun Wan
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Diabetes
Research Center of Chinese Academy of Medical Sciences, Beijing 100050, China
- CAMS
Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic
Disorder and Tumorigenesis, Beijing 100050, China
| | - Liheng Liu
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Diabetes
Research Center of Chinese Academy of Medical Sciences, Beijing 100050, China
- CAMS
Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic
Disorder and Tumorigenesis, Beijing 100050, China
| | - Jie Zhou
- Beijing
Key Laboratory of Active Substances Discovery and Druggability Evaluation,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Pingping Li
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Diabetes
Research Center of Chinese Academy of Medical Sciences, Beijing 100050, China
- CAMS
Key Laboratory of Molecular Mechanism and Target Discovery of Metabolic
Disorder and Tumorigenesis, Beijing 100050, China
| | - Bailing Xu
- Beijing
Key Laboratory of Active Substances Discovery and Druggability Evaluation,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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5
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Leusmann S, Ménová P, Shanin E, Titz A, Rademacher C. Glycomimetics for the inhibition and modulation of lectins. Chem Soc Rev 2023; 52:3663-3740. [PMID: 37232696 PMCID: PMC10243309 DOI: 10.1039/d2cs00954d] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Indexed: 05/27/2023]
Abstract
Carbohydrates are essential mediators of many processes in health and disease. They regulate self-/non-self- discrimination, are key elements of cellular communication, cancer, infection and inflammation, and determine protein folding, function and life-times. Moreover, they are integral to the cellular envelope for microorganisms and participate in biofilm formation. These diverse functions of carbohydrates are mediated by carbohydrate-binding proteins, lectins, and the more the knowledge about the biology of these proteins is advancing, the more interfering with carbohydrate recognition becomes a viable option for the development of novel therapeutics. In this respect, small molecules mimicking this recognition process become more and more available either as tools for fostering our basic understanding of glycobiology or as therapeutics. In this review, we outline the general design principles of glycomimetic inhibitors (Section 2). This section is then followed by highlighting three approaches to interfere with lectin function, i.e. with carbohydrate-derived glycomimetics (Section 3.1), novel glycomimetic scaffolds (Section 3.2) and allosteric modulators (Section 3.3). We summarize recent advances in design and application of glycomimetics for various classes of lectins of mammalian, viral and bacterial origin. Besides highlighting design principles in general, we showcase defined cases in which glycomimetics have been advanced to clinical trials or marketed. Additionally, emerging applications of glycomimetics for targeted protein degradation and targeted delivery purposes are reviewed in Section 4.
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Affiliation(s)
- Steffen Leusmann
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Petra Ménová
- University of Chemistry and Technology, Prague, Technická 5, 16628 Prague 6, Czech Republic
| | - Elena Shanin
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
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6
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Lemaigre C, Ceuppens A, Valades-Cruz CA, Ledoux B, Vanbeneden B, Hassan M, Zetterberg FR, Nilsson UJ, Johannes L, Wunder C, Renard HF, Morsomme P. N-BAR and F-BAR proteins-endophilin-A3 and PSTPIP1-control clathrin-independent endocytosis of L1CAM. Traffic 2023; 24:190-212. [PMID: 36843549 DOI: 10.1111/tra.12883] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 02/28/2023]
Abstract
Recent advances in the field demonstrate the high diversity and complexity of endocytic pathways. In the current study, we focus on the endocytosis of L1CAM. This glycoprotein plays a major role in the development of the nervous system, and is involved in cancer development and is associated with metastases and poor prognosis. Two L1CAM isoforms are subject to endocytosis: isoform 1, described as a clathrin-mediated cargo; isoform 2, whose endocytosis has never been studied. Deciphering the molecular machinery of isoform 2 internalisation should contribute to a better understanding of its pathophysiological role. First, we demonstrated in our cellular context that both isoforms of L1CAM are mainly a clathrin-independent cargo, which was not expected for isoform 1. Second, the mechanism of L1CAM endocytosis is specifically mediated by the N-BAR domain protein endophilin-A3. Third, we discovered PSTPIP1, an F-BAR domain protein, as a novel actor in this endocytic process. Finally, we identified galectins as endocytic partners and negative regulators of L1CAM endocytosis. In summary, the interplay of the BAR proteins endophilin-A3 and PSTPIP1, and galectins fine tune the clathrin-independent endocytosis of L1CAM.
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Affiliation(s)
- Camille Lemaigre
- UCLouvain, Louvain Institute of Biomolecular Science and Technology, Group of Molecular Physiology, Louvain-la-Neuve, Belgium
| | - Apolline Ceuppens
- UCLouvain, Louvain Institute of Biomolecular Science and Technology, Group of Molecular Physiology, Louvain-la-Neuve, Belgium
| | - Cesar Augusto Valades-Cruz
- Institut Curie, Université PSL, U1143 INSERM, UMR3666 CNRS, Cellular and Chemical Biology unit, Paris, France.,SERPICO Project Team, UMR144 CNRS Institut Curie, PSL Research University, Paris, France.,SERPICO Project Team, Inria Centre Rennes-Bretagne Atlantique, Campus Universitaire de Beaulieu, Rennes, France
| | - Benjamin Ledoux
- UCLouvain, Louvain Institute of Biomolecular Science and Technology, Group of Molecular Physiology, Louvain-la-Neuve, Belgium
| | - Bastien Vanbeneden
- UCLouvain, Louvain Institute of Biomolecular Science and Technology, Group of Molecular Physiology, Louvain-la-Neuve, Belgium
| | | | | | - Ulf J Nilsson
- Department of Chemistry, Lund University, Lund, Sweden
| | - Ludger Johannes
- Institut Curie, Université PSL, U1143 INSERM, UMR3666 CNRS, Cellular and Chemical Biology unit, Paris, France
| | - Christian Wunder
- Institut Curie, Université PSL, U1143 INSERM, UMR3666 CNRS, Cellular and Chemical Biology unit, Paris, France
| | - Henri-François Renard
- UNamur, NARILIS, Unité de recherche en biologie cellulaire animale (URBC), Namur, Belgium
| | - Pierre Morsomme
- UCLouvain, Louvain Institute of Biomolecular Science and Technology, Group of Molecular Physiology, Louvain-la-Neuve, Belgium
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7
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Ramadan A, Cao Z, Hassan M, Zetterberg F, Nilsson UJ, Gadjeva M, Rathinam V, Panjwani N. Galectin-8 Downmodulates TLR4 Activation and Impairs Bacterial Clearance in a Mouse Model of Pseudomonas aeruginosa Keratitis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:398-407. [PMID: 36603009 PMCID: PMC9898164 DOI: 10.4049/jimmunol.2200706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/15/2022] [Indexed: 01/06/2023]
Abstract
Pseudomonas aeruginosa provokes a painful, sight-threatening corneal infection. It progresses rapidly and is difficult to treat. In this study, using a mouse model of P. aeruginosa keratitis, we demonstrate the importance of a carbohydrate-binding protein, galectin-8 (Gal-8), in regulation of the innate immune response. First, using two distinct strains of P. aeruginosa, we established that Gal-8-/- mice are resistant to P. aeruginosa keratitis. In contrast, mice deficient in Gal-1, Gal-3, and Gal-9 were fully susceptible. Second, the addition of exogenous rGal-8 to LPS (TLR4 ligand)-stimulated bone marrow-derived macrophages suppressed 1) the activation of the NF-κB pathway, and 2) formation of the MD-2/TLR4 complex. Additionally, the expression level of reactive oxygen species was substantially higher in infected Gal-8-/- bone marrow neutrophils (BMNs) compared with the Gal-8+/+ BMNs, and the P. aeruginosa killing capacity of Gal-8-/- BMNs was considerably higher compared with that of Gal-8+/+ BMNs. In the bacterial killing assays, the addition of exogenous rGal-8 almost completely rescued the phenotype of Gal-8-/- BMNs. Finally, we demonstrate that a subconjunctival injection of a Gal-8 inhibitor markedly reduces the severity of infection in the mouse model of P. aeruginosa keratitis. These data lead us to conclude that Gal-8 downmodulates the innate immune response by suppressing activation of the TLR4 pathway and clearance of P. aeruginosa by neutrophils. These findings have broad implications for developing novel therapeutic strategies for treatment of conditions resulting from the hyperactive immune response both in ocular as well as nonocular tissues.
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Affiliation(s)
- Abdulraouf Ramadan
- New England Eye Center/Department of Ophthalmology, Tufts University School of Medicine, Boston, MA. 02111, USA
| | - Zhiyi Cao
- New England Eye Center/Department of Ophthalmology, Tufts University School of Medicine, Boston, MA. 02111, USA
| | - Mujtaba Hassan
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
| | | | - Ulf J. Nilsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
| | - Mihaela Gadjeva
- Department of Medicine, Division of Infectious Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA. 02115, USA
| | - Vijay Rathinam
- Department of Immunology, UConn Health School of Medicine, Farmington, CT
| | - Noorjahan Panjwani
- New England Eye Center/Department of Ophthalmology, Tufts University School of Medicine, Boston, MA. 02111, USA
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA, 02111, USA
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8
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van Klaveren S, Dernovšek J, Jakopin Ž, Anderluh M, Leffler H, Nilsson UJ, Tomašič T. Design and synthesis of novel 3-triazolyl-1-thiogalactosides as galectin-1, -3 and -8 inhibitors. RSC Adv 2022; 12:18973-18984. [PMID: 35873334 PMCID: PMC9245910 DOI: 10.1039/d2ra03163a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/23/2022] [Indexed: 11/04/2022] Open
Abstract
Galectins are galactoside-binding proteins that play a role in various pathophysiological conditions, making them attractive targets in drug discovery. We have designed and synthesised a focused library of aromatic 3-triazolyl-1-thiogalactosides targeting their core site for binding of galactose and a subsite on its non-reducing side. Evaluation of their binding affinities for galectin-1, -3, and -8N identified acetamide-based compound 36 as a suitable compound for further affinity enhancement by adding groups at the reducing side of the galactose. Synthesis of its dichlorothiophenyl analogue 59 and the thiodigalactoside analogue 62 yielded promising pan-galectin inhibitors. A new series of potent galectin ligands based on the galactose and triazole moieties was designed and synthesised.![]()
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Affiliation(s)
- Sjors van Klaveren
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry Aškerčeva cesta 7 1000 Ljubljana Slovenia .,Centre for Analysis and Synthesis, Department of Chemistry, Lund University SE-221 00 Lund Sweden
| | - Jaka Dernovšek
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry Aškerčeva cesta 7 1000 Ljubljana Slovenia
| | - Žiga Jakopin
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry Aškerčeva cesta 7 1000 Ljubljana Slovenia
| | - Marko Anderluh
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry Aškerčeva cesta 7 1000 Ljubljana Slovenia
| | - Hakon Leffler
- Department of Laboratory Medicine, Section MIG, Lund University BMC-C1228b Klinikgatan 28 221 84 Lund Sweden
| | - Ulf J Nilsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University SE-221 00 Lund Sweden
| | - Tihomir Tomašič
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry Aškerčeva cesta 7 1000 Ljubljana Slovenia
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9
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Yong C, Li Y, Bi T, Chen G, Zheng D, Wang Z, Zhang Y. Research Progress on the Synthesis and Activity of D-Galactose Derived Small Galectin Inhibitors. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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van Klaveren S, Sundin AP, Jakopin Ž, Anderluh M, Leffler H, Nilsson UJ, Tomašič T. Selective Galectin-8N Ligands: The Design and Synthesis of Phthalazinone-d-Galactals. ChemMedChem 2021; 17:e202100575. [PMID: 34913595 DOI: 10.1002/cmdc.202100575] [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: 08/30/2021] [Revised: 12/03/2021] [Indexed: 11/10/2022]
Abstract
Ligand selectivity among the highly conserved galectins has been an ever-challenging objective. For galectin-8, a protein prevalent in both pathology and tissue distribution, we report phthalazinone-galactals that show excellent selectivity for the galectin-8N-terminal domain. A dissection of structure-activity relationships of the phthalazinone and an extensive molecular dynamics meta-analysis accompany the discovery of the selective galectin-8N ligands presented here. These selective compounds will facilitate the study of galectin-8 biology and may have pharmaceutical relevance in the wide range of galectin-8 associated pathologies.
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Affiliation(s)
- Sjors van Klaveren
- Chair of Pharmaceutical Chemistry, University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia.,Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Faculty of Science, Naturvetarvägen 14, 223 62, Lund, Sweden
| | - Anders P Sundin
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Faculty of Science, Naturvetarvägen 14, 223 62, Lund, Sweden
| | - Žiga Jakopin
- Chair of Pharmaceutical Chemistry, University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Marko Anderluh
- Chair of Pharmaceutical Chemistry, University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Hakon Leffler
- Department of Laboratory Medicine, Section MIG, Lund University, BMC-C1228b, Klinikgatan 28, 221 84, Lund, Sweden
| | - Ulf J Nilsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Faculty of Science, Naturvetarvägen 14, 223 62, Lund, Sweden
| | - Tihomir Tomašič
- Chair of Pharmaceutical Chemistry, University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
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11
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Hassan M, Baussière F, Guzelj S, Sundin AP, Håkansson M, Kovačič R, Leffler H, Tomašič T, Anderluh M, Jakopin Ž, Nilsson UJ. Structure-Guided Design of d-Galactal Derivatives with High Affinity and Selectivity for the Galectin-8 N-Terminal Domain. ACS Med Chem Lett 2021; 12:1745-1752. [PMID: 34795863 PMCID: PMC8592027 DOI: 10.1021/acsmedchemlett.1c00371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/27/2021] [Indexed: 12/14/2022] Open
Abstract
Galectin-8 is a carbohydrate-binding protein that plays a crucial role in tumor progression and metastasis, antibacterial autophagy, modulation of the immune system, and bone remodeling. The design, synthesis, and protein affinity evaluation of a set of C-3 substituted benzimidazole and quinoline d-galactal derivatives identified a d-galactal-benzimidazole hybrid as a selective ligand for the galectin-8 N-terminal domain (galectin-8N), with a K d of 48 μM and 15-fold selectivity over galectin-3 and even better selectivity over the other mammalian galectins. X-ray structural analysis of galectin-8N in complex with one benzimidazole- and one quinoline-galactal derivative at 1.52 and 2.1 Å together with molecular dynamics simulations and quantum mechanical calculations of galectin-8N in complex with the benzimidazole derivative revealed orbital overlap between a NH LUMO of Arg45 with electron rich HOMOs of the olefin and O4 of the d-galactal. Such overlap is hypothesized to contribute to the high affinity of the d-galactal-derived ligands for galectin-8N. A (3-(4,5-dimethylthiazol-2-yl)-5-(3- carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium) (MTS) assay evaluation of the d-galactal-benzimidazole hybrid and an analogous galactoside derivative on a panel of cell lines with MTS assay showed no effect on cell viability up to 100 μM concentration. A subsequent functional assay using the MDA-MB-231 cell line demonstrated that the d-galactal-benzimidazole hybrid and the analogous galactoside derivative reduced the secretion of the proinflammatory cytokines interleukin-6 (IL-6) and IL-8 in a dose-dependent manner. Therefore, these compounds represent potential probes for galectin-8N pharmacology investigations and possibly promising leads for the design and synthesis of potent and selective galectin-8 inhibitors as potential antitumor and anti-inflammatory agents.
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Affiliation(s)
- Mujtaba Hassan
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Floriane Baussière
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
| | - Samo Guzelj
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Anders P. Sundin
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
| | - Maria Håkansson
- SARomics
Biostructures AB, Medicon
Village, SE-223 63 Lund, Sweden
| | - Rebeka Kovačič
- SARomics
Biostructures AB, Medicon
Village, SE-223 63 Lund, Sweden
| | - Hakon Leffler
- Department
of Laboratory Medicine, Section MIG, Lund
University BMC-C1228b, Klinikgatan 28, 221 84 Lund, Sweden
| | - Tihomir Tomašič
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Marko Anderluh
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Žiga Jakopin
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Ulf J. Nilsson
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
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12
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Girardi B, Manna M, Van Klaveren S, Tomašič T, Jakopin Ž, Leffler H, Nilsson UJ, Ricklin D, Mravljak J, Schwardt O, Anderluh M. Selective Monovalent Galectin-8 Ligands Based on 3-Lactoylgalactoside. ChemMedChem 2021; 17:e202100514. [PMID: 34613662 DOI: 10.1002/cmdc.202100514] [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: 07/28/2021] [Indexed: 11/08/2022]
Abstract
Galectin-8 has gained attention as a potential new pharmacological target for the treatment of various diseases, including cancer, inflammation, and disorders associated with bone mass reduction. To that end, new molecular probes are needed in order to better understand its role and its functions. Herein we aimed to improve the affinity and target selectivity of a recently published galectin-8 ligand, 3-O-[1-carboxyethyl]-β-d-galactopyranoside, by introducing modifications at positions 1 and 3 of the galactose. Affinity data measured by fluorescence polarization show that the most potent compound reached a KD of 12 μM. Furthermore, reasonable selectivity versus other galectins was achieved, making the highlighted compound a promising lead for the development of new selective and potent ligands for galectin-8 as molecular probes to examine the protein's role in cell-based and in vivo studies.
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Affiliation(s)
- Benedetta Girardi
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia.,Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Martina Manna
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia
| | - Sjors Van Klaveren
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia.,Centre for Analysis and Synthesis - Department of Chemistry, Lund University, Box 124-221 00, Lund, Sweden
| | - Tihomir Tomašič
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia
| | - Žiga Jakopin
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia
| | - Hakon Leffler
- Centre for Analysis and Synthesis - Department of Chemistry, Lund University, Box 124-221 00, Lund, Sweden
| | - Ulf J Nilsson
- Centre for Analysis and Synthesis - Department of Chemistry, Lund University, Box 124-221 00, Lund, Sweden
| | - Daniel Ricklin
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Janez Mravljak
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia
| | - Oliver Schwardt
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Marko Anderluh
- Faculty of Pharmacy, University of Ljubljana, Askerčeva cesta, 7, 1000, Ljubljana, Slovenia
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