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Sladek V, Šmak P, Tvaroška I. How E-, L-, and P-Selectins Bind to sLe x and PSGL-1: A Quantification of Critical Residue Interactions. J Chem Inf Model 2023; 63:5604-5618. [PMID: 37486087 DOI: 10.1021/acs.jcim.3c00704] [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: 07/25/2023]
Abstract
Selectins and their ability to interact with specific ligands are a cornerstone in cell communication. Over the last three decades, a considerable wealth of experimental and molecular modeling insights into their structure and modus operandi were gathered. Nonetheless, explaining the role of individual selectin residues on a quantitative level remained elusive, despite its importance in understanding the structure-function relationship in these molecules and designing their inhibitors. This work explores essential interactions of selectin-ligand binding, employing a multiscale approach that combines molecular dynamics, quantum-chemical calculations, and residue interaction network models. Such an approach successfully reproduces most of the experimental findings. It proves to be helpful, with the potential for becoming an established tool for quantitative predictions of residue contribution to the binding of biomolecular complexes. The results empower us to quantify the importance of particular residues and functional groups in the protein-ligand interface and to pinpoint differences in molecular recognition by the three selectins. We show that mutations in the E-, L-, and P-selectins, e.g., different residues in positions 46, 85, 97, and 107, present a crucial difference in how the ligand is engaged. We assess the role of sulfation of tyrosine residues in PSGL-1 and suggest that TyrSO3- in position 51 interacting with Arg85 in P-selectin is a significant factor in the increased affinity of P-selectin to PSGL-1 compared to E- and L-selectins. We propose an original pharmacophore targeting five essential PSGL-binding sites based on the analysis of the selectin···PSGL-1 interactions.
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Affiliation(s)
- Vladimir Sladek
- Institute of Chemistry, SAS, Dubravska cesta 9, 84538 Bratislava, Slovakia
| | - Pavel Šmak
- Department of Biochemistry, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Igor Tvaroška
- Institute of Chemistry, SAS, Dubravska cesta 9, 84538 Bratislava, Slovakia
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2
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Wei H, Hu Y, Wang J, Gao X, Qian X, Tang M. Superparamagnetic Iron Oxide Nanoparticles: Cytotoxicity, Metabolism, and Cellular Behavior in Biomedicine Applications. Int J Nanomedicine 2021; 16:6097-6113. [PMID: 34511908 PMCID: PMC8418330 DOI: 10.2147/ijn.s321984] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/30/2021] [Indexed: 12/15/2022] Open
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) have been widely investigated and applied in the field of biomedicine due to their excellent superparamagnetic properties and reliable traceability. However, with the optimization of core composition, shell types and transfection agents, the cytotoxicity and metabolism of different SPIONs have great differences, and the labeled cells also show different cellular behaviors. Therefore, a holistic review of the construction and application of SPIONs is desired. This review focuses the advances of SPIONs in the field of biomedicine in recent years. After summarizing the toxicity of different SPIONs, the uptake, distribution and metabolism of SPIONs in vitro were discussed. Then, the regulation of labeled-cells behavior is outlined. Furthermore, the major challenges in the optimization process of SPIONs and insights on its future developments are proposed.
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Affiliation(s)
- Hao Wei
- Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, Nanjing, 210008, People's Republic of China
| | - Yangnan Hu
- State Key Laboratory of Bioelectronics, School of Life Sciences and Technology, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, 210096, People's Republic of China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, People's Republic of China
| | - Junguo Wang
- Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, Nanjing, 210008, People's Republic of China
| | - Xia Gao
- Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, Nanjing, 210008, People's Republic of China
| | - Xiaoyun Qian
- Department of Otolaryngology Head and Neck Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, Nanjing, 210008, People's Republic of China
| | - Mingliang Tang
- State Key Laboratory of Bioelectronics, School of Life Sciences and Technology, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, 210096, People's Republic of China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, People's Republic of China.,Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Medical College, Soochow University, Suzhou, 215000, People's Republic of China
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3
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Design and synthesis of novel quinic acid derivatives: in vitro cytotoxicity and anticancer effect on glioblastoma. Future Med Chem 2020; 12:1891-1910. [PMID: 33124467 DOI: 10.4155/fmc-2020-0194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: Quinic acid (QA) is a cyclic polyol exhibiting anticancer properties on several cancers. However, potential role of QA derivatives against glioblastoma is not well established. Methodology & results: Sixteen novel QA derivatives and QA-16 encapsulated poly (lactic-co-glycolic acid) nanoparticles (QA-16-NPs) were screened for their anti-glioblastoma effect using standard cell and molecular biology methods. Presence of a tertiary hydroxy and silylether groups in the lead compound were identified for the antitumor activity. QA-16 have 90% inhibition with the IC50 of 10.66 μM and 28.22 μM for LN229 and SNB19, respectively. The induction of apoptosis is faster with the increased fold change of caspase 3/7 and reactive oxygen species. Conclusion: QA-16 and QA-16-NPs shows similar cytotoxicity effect, providing the opportunity to use QA-16 as a potential chemotherapeutic agent.
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Tvaroška I, Selvaraj C, Koča J. Selectins-The Two Dr. Jekyll and Mr. Hyde Faces of Adhesion Molecules-A Review. Molecules 2020; 25:molecules25122835. [PMID: 32575485 PMCID: PMC7355470 DOI: 10.3390/molecules25122835] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/27/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023] Open
Abstract
Selectins belong to a group of adhesion molecules that fulfill an essential role in immune and inflammatory responses and tissue healing. Selectins are glycoproteins that decode the information carried by glycan structures, and non-covalent interactions of selectins with these glycan structures mediate biological processes. The sialylated and fucosylated tetrasaccharide sLex is an essential glycan recognized by selectins. Several glycosyltransferases are responsible for the biosynthesis of the sLex tetrasaccharide. Selectins are involved in a sequence of interactions of circulated leukocytes with endothelial cells in the blood called the adhesion cascade. Recently, it has become evident that cancer cells utilize a similar adhesion cascade to promote metastases. However, like Dr. Jekyll and Mr. Hyde’s two faces, selectins also contribute to tissue destruction during some infections and inflammatory diseases. The most prominent function of selectins is associated with the initial stage of the leukocyte adhesion cascade, in which selectin binding enables tethering and rolling. The first adhesive event occurs through specific non-covalent interactions between selectins and their ligands, with glycans functioning as an interface between leukocytes or cancer cells and the endothelium. Targeting these interactions remains a principal strategy aimed at developing new therapies for the treatment of immune and inflammatory disorders and cancer. In this review, we will survey the significant contributions to and the current status of the understanding of the structure of selectins and the role of selectins in various biological processes. The potential of selectins and their ligands as therapeutic targets in chronic and acute inflammatory diseases and cancer will also be discussed. We will emphasize the structural characteristic of selectins and the catalytic mechanisms of glycosyltransferases involved in the biosynthesis of glycan recognition determinants. Furthermore, recent achievements in the synthesis of selectin inhibitors will be reviewed with a focus on the various strategies used for the development of glycosyltransferase inhibitors, including substrate analog inhibitors and transition state analog inhibitors, which are based on knowledge of the catalytic mechanism.
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Affiliation(s)
- Igor Tvaroška
- Central European Institute of Technology (CEITEC), Masaryk University, 62500 Brno, Czech Republic
- Institute of Chemistry, Slovak Academy of Sciences, 84538 Bratislava, Slovak Republic
- Correspondence: (I.T.); (J.K.); Tel.: +421-948-535-601 (I.T.); +420-731-682-606 (J.K.)
| | - Chandrabose Selvaraj
- Central European Institute of Technology (CEITEC), Masaryk University, 62500 Brno, Czech Republic
| | - Jaroslav Koča
- Central European Institute of Technology (CEITEC), Masaryk University, 62500 Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
- Correspondence: (I.T.); (J.K.); Tel.: +421-948-535-601 (I.T.); +420-731-682-606 (J.K.)
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5
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Narkhede AA, Sherwood JA, Antone A, Coogan KR, Bolding MS, Deb S, Bao Y, Rao SS. Role of Surface Chemistry in Mediating the Uptake of Ultrasmall Iron Oxide Nanoparticles by Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17157-17166. [PMID: 31017392 DOI: 10.1021/acsami.9b00606] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ultrasmall iron oxide nanoparticles (USIONPs) (<4 nm) have recently attracted significant attention because of their potential as positive T1 magnetic resonance imaging (MRI) contrast agent contrary to larger superparamagnetic iron oxide nanoparticles (>6 nm) which act as negative T2 MRI contrast agents. However, studies on the cellular uptake behavior of these nanoparticles are very limited compared to their counterpart, larger-sized superparamagnetic iron oxide nanoparticles. In particular, the effects of specific nanoparticle parameters on the cellular uptake behavior of USIONPs by various cancer cells are not available. Here, we specifically investigated the role of USIONPs' surface functionalities [tannic acid (TA) and quinic acid (QA)] in mediating cellular uptake behavior of cancer cells pertaining to primary (U87 cells) and metastatic (MDA-MB-231Br cells) brain malignancies. Here, we chose TA and QA as representative capping molecules, wherein TA coating provides a general negatively charged nontargeting surface while QA provides a tumor-targeting surface as QA and its derivatives are known to interact with selectin receptors expressed on tumor cells and tumor endothelium. We observed differential cellular uptake in the case of TA- and QA-coated USIONPs by cancer cells. Both the cell types showed significantly higher cellular uptake of QA-coated USIONPs compared to TA-coated USIONPs at 4, 24, and 72 h. Blocking studies indicated that P-selectin cell surface receptors, in part, mediated the cellular uptake of QA-coated USIONPs. Given that P-selectin is overexpressed in cancer cells, tumor microenvironment, and at the metastatic niche, QA-coated USIONPs hold potential to be utilized as a platform for tumor-targeted drug delivery and in imaging and detection of primary and metastatic tumors.
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Affiliation(s)
- Akshay A Narkhede
- Department of Chemical and Biological Engineering , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
| | - Jennifer A Sherwood
- Department of Chemical and Biological Engineering , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
| | - Angelo Antone
- Department of Chemical and Biological Engineering , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
| | - Kasie R Coogan
- Department of Chemical and Biological Engineering , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
| | - Mark S Bolding
- Department of Radiology , The University of Alabama at Birmingham , Birmingham , Alabama 35233 , United States
| | - Sanghamitra Deb
- Central Analytical Facility , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
| | - Yuping Bao
- Department of Chemical and Biological Engineering , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
| | - Shreyas S Rao
- Department of Chemical and Biological Engineering , The University of Alabama , Tuscaloosa , Alabama 35487 , United States
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6
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Xu J, Seung-Young Lee S, Seo H, Pang L, Jun Y, Zhang RY, Zhang ZY, Kim P, Lee W, Kron SJ, Yeo Y. Quinic Acid-Conjugated Nanoparticles Enhance Drug Delivery to Solid Tumors via Interactions with Endothelial Selectins. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803601. [PMID: 30411856 PMCID: PMC6361670 DOI: 10.1002/smll.201803601] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/11/2018] [Indexed: 05/26/2023]
Abstract
Current nanoparticle (NP) drug carriers mostly depend on the enhanced permeability and retention (EPR) effect for selective drug delivery to solid tumors. However, in the absence of a persistent EPR effect, the peritumoral endothelium can function as an access barrier to tumors and negatively affect the effectiveness of NPs. In recognition of the peritumoral endothelium as a potential barrier in drug delivery to tumors, poly(lactic-co-glycolic acid) (PLGA) NPs are modified with a quinic acid (QA) derivative, synthetic mimic of selectin ligands. QA-decorated NPs (QA-NP) interact with human umbilical vein endothelial cells expressing E-/P-selectins and induce transient increase in endothelial permeability to translocate across the layer. QA-NP reach selectin-upregulated tumors, achieving greater tumor accumulation and paclitaxel (PTX) delivery than polyethylene glycol-decorated NPs (PEG-NP). PTX-loaded QA-NP show greater anticancer efficacy than Taxol or PTX-loaded PEG-NP at the equivalent PTX dose in different animal models and dosing regimens. Repeated dosing of PTX-loaded QA-NP for two weeks results in complete tumor remission in 40-60% of MDA-MB-231 tumor-bearing mice, while those receiving control treatments succumb to death. QA-NP can exploit the interaction with selectin-expressing peritumoral endothelium and deliver anticancer drugs to tumors to a greater extent than the level currently possible with the EPR effect.
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Affiliation(s)
- Jun Xu
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA,
| | - Steve Seung-Young Lee
- Ludwig Center for Metastasis Research, The University of Chicago, 5758 South Maryland Avenue, MC 9006, and Department of Molecular Genetics and Cellular Biology, The University of Chicago, 929 East 57th Street, GCIS W519, Chicago, IL 60637, USA
| | - Howon Seo
- Graduate School of Nanoscience and Technology and KAIST Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Liang Pang
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, 201203, People’s Republic of China
| | - Yearin Jun
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ruo-Yu Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, USA
| | - Zhong-Yin Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, USA
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology and KAIST Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Graduate School of Medical Science and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Wooin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Stephen J. Kron
- Ludwig Center for Metastasis Research, The University of Chicago, 5758 South Maryland Avenue, MC 9006, and Department of Molecular Genetics and Cellular Biology, The University of Chicago, 929 East 57th Street, GCIS W519, Chicago, IL 60637, USA
| | - Yoon Yeo
- Department of Industrial and Physical Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA, ; Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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7
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Peng Y, Dong Y, Mahato RI. Synthesis and Characterization of a Novel Mycophenolic Acid-Quinic Acid Conjugate Serving as Immunosuppressant with Decreased Toxicity. Mol Pharm 2015; 12:4445-53. [PMID: 26529468 DOI: 10.1021/acs.molpharmaceut.5b00639] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Mycophenolic acid (MPA) is one of the most commonly used immunosuppressive drugs for improving the outcome of cell and organ transplantations. However, an undesired adverse effect of MPA impedes its application in the clinics for post-transplant patients. By conjugating MPA to quinic acid (QA) via amide bonds, we synthesized a novel immunosuppressant, N-[2-[[(4E)-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-1-oxo-4-hexen-1-yl]amino]ethyl]-(1α,3R,4α,5R)-1,3,4,5-tetrakis(acetyloxy)cyclohexanecarboxamide (abbreviated as MQ4), which exhibits improved stability demonstrated by its incubation in vitro with human plasma, suggesting its better resistance to hydrolytic degradation induced by plasma enzyme. While the immunosuppressive effect of MQ4 on human lymphocyte proliferation was partially compromised as shown by flow cytometry, significant decrease in cytotoxicity of MQ4 to insulin producing β cells could compensate this drawback to some degree. There was a decreased level of apoptotic mediator caspase-3, which may contribute to the decreased toxicity of MQ4 to INS-1E cells. MQ4 could further improve insulin stimulation index and downregulate NFκB expression compared to physical mixing of QA to MPA. Taken together, MQ4 is a promising immunosuppressive agent for preventing and minimizing post-transplanted immune rejection.
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Affiliation(s)
- Yang Peng
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198-6025, United States
| | - Yuxiang Dong
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198-6025, United States
| | - Ram I Mahato
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198-6025, United States
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8
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Huang CY, Chen LH, Huang HY, Kao FS, Lee YT, Selvaraju M, Sun CM, Chen HM. Parallel synthesis and biological evolution of quinic acid derivatives as immuno-suppressing agents against T-cell receptors. RSC Adv 2015. [DOI: 10.1039/c5ra06095h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A parallel synthesis of quinic acid derivatives is explored and their biological evolution against T-cells is studied.
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Affiliation(s)
- Chih-Yu Huang
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
| | - Li-Hsun Chen
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300
- Taiwan
| | - Hsuan-Yu Huang
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
| | - Feng-Sheng Kao
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
| | - Yun-Ta Lee
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300
- Taiwan
- Department of Medicinal and Applied Chemistry
| | | | - Chung-Ming Sun
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300
- Taiwan
- Department of Medicinal and Applied Chemistry
| | - Hueih-Min Chen
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
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9
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Calosso M, Tambutet G, Charpentier D, St-Pierre G, Vaillancourt M, Bencheqroun M, Gratton JP, Prévost M, Guindon Y. Acyclic tethers mimicking subunits of polysaccharide ligands: selectin antagonists. ACS Med Chem Lett 2014; 5:1054-9. [PMID: 25221666 DOI: 10.1021/ml500266x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 07/16/2014] [Indexed: 11/28/2022] Open
Abstract
We report on the design and synthesis of molecules having E- and P-selectins blocking activity both in vitro and in vivo. The GlcNAc component of the selectin ligand sialyl Lewis(X) was replaced by an acyclic tether that links two saccharide units. The minimization of intramolecular dipole-dipole interactions and the gauche effect would be at the origin of the conformational bias imposed by this acyclic tether. The stereoselective synthesis of these molecules, their biochemical and biological evaluations using surface plasmon resonance spectroscopy (SPR), and in vivo assays are described. Because the structure of our analogues differs from the most potent E-selectin antagonists reported, our acyclic analogues offer new opportunities for chemical diversity.
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Affiliation(s)
- Mickael Calosso
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Guillaume Tambutet
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Daniel Charpentier
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Gabrielle St-Pierre
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Marc Vaillancourt
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Mohammed Bencheqroun
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Jean-Philippe Gratton
- Département
de Pharmacologie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Michel Prévost
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
| | - Yvan Guindon
- Bio-Organic
Chemistry Laboratory, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec H2W 1R7, Canada
- Département
de Chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
- Department
of Chemistry, McGill University, Montréal, Québec H3A 2K6, Canada
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Schlemmer C, Wiebe C, Ferenc D, Kowalczyk D, Wedepohl S, Ziegelmüller P, Dernedde J, Opatz T. Chemoenzymatic synthesis of functional sialyl Lewis(x) mimetics with a heteroaromatic core. Chem Asian J 2014; 9:2119-25. [PMID: 24888318 PMCID: PMC4498494 DOI: 10.1002/asia.201402118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Indexed: 11/10/2022]
Abstract
Functional mimetics of the sialyl Lewis(X) tetrasaccharide were prepared by the enzymatic sialylation of a 1,3-diglycosylated indole and a glycosyl azide, which was subsequently transformed into a 1,4-diglycosylated 1,2,3-triazole, by using the trans-sialidase of Trypanosoma cruzi. These compounds inhibited the binding of E-, L-, and P-selectin-coated nanoparticles to polyacrylamide-bound sialyl-Lewis(X) -containing neighboring sulfated tyrosine residues (sTyr/sLe(X) -PAA) at low or sub-millimolar concentrations. Except for E-selectin, the mimetics showed higher activities than the natural tetrasaccharide.
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Affiliation(s)
- Claudine Schlemmer
- Institut für Organische Chemie, Johannes Gutenberg-UniversitätDuesbergweg 10–14, 55128 Mainz (Germany), Fax: (+49) 6131-3922338 E-mail:
| | - Christine Wiebe
- Institut für Organische Chemie, Johannes Gutenberg-UniversitätDuesbergweg 10–14, 55128 Mainz (Germany), Fax: (+49) 6131-3922338 E-mail:
| | - Dorota Ferenc
- Institut für Organische Chemie, Johannes Gutenberg-UniversitätDuesbergweg 10–14, 55128 Mainz (Germany), Fax: (+49) 6131-3922338 E-mail:
| | - Danuta Kowalczyk
- Institut für Organische Chemie, Johannes Gutenberg-UniversitätDuesbergweg 10–14, 55128 Mainz (Germany), Fax: (+49) 6131-3922338 E-mail:
| | - Stefanie Wedepohl
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin BerlinCVK, Augustenburger Platz 1, 13353 Berlin (Germany)
| | - Patrick Ziegelmüller
- Institut für Biochemie und Molekularbiologie, Universität HamburgMartin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Jens Dernedde
- Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité-Universitätsmedizin BerlinCVK, Augustenburger Platz 1, 13353 Berlin (Germany)
| | - Till Opatz
- Institut für Organische Chemie, Johannes Gutenberg-UniversitätDuesbergweg 10–14, 55128 Mainz (Germany), Fax: (+49) 6131-3922338 E-mail:
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11
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Li Q, Yan TT, Niu S, Zhao YT, Meng XB, Zhao ZH, Li ZJ. Synthesis of a series of multivalent homo-, and heteroglycosides and their anti-adhesion activities. Carbohydr Res 2013; 379:78-94. [DOI: 10.1016/j.carres.2013.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/13/2013] [Accepted: 06/14/2013] [Indexed: 11/25/2022]
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12
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Amoozgar Z, Park J, Lin Q, Weidle JH, Yeo Y. Development of quinic acid-conjugated nanoparticles as a drug carrier to solid tumors. Biomacromolecules 2013; 14:2389-95. [PMID: 23738975 DOI: 10.1021/bm400512g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Nanometer-sized drug carriers including polymeric nanoparticles (NPs) have been used to increase biodistribution of a drug in tumors, thereby reducing the effective dose of chemotherapy. NPs increase drug delivery to tumors to a certain extent, but the amount reaching tumors is only a small fraction of the total administered NPs because they depend on passive accumulation via the leaky vasculature surrounding tumors. In an attempt to further increase the drug delivery to tumors, we develop a polymeric NP system that interacts with an endothelial tumor marker. The NPs are decorated with quinic acid, a synthetic mimic of sialyl Lewis-x, which binds to E-selectin, overexpressed on the surface of endothelial cells surrounding solid tumors. The NPs selectively bind to endothelial cells activated with tumor necrosis factor-α, with weak affinity at a relatively high shear stress. These properties may help NPs reach tumors by increasing the encounter of NPs with the peritumoral endothelium without hindering subsequent transport of the NPs.
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Affiliation(s)
- Zohreh Amoozgar
- Department of Industrial and Physical Pharmacy, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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Calosso M, Charpentier D, Vaillancourt M, Bencheqroun M, St-Pierre G, Wilkes BC, Guindon Y. A new approach to explore the binding space of polysaccharide-based ligands: selectin antagonists. ACS Med Chem Lett 2012; 3:1045-9. [PMID: 24900426 DOI: 10.1021/ml300263x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/11/2012] [Indexed: 01/11/2023] Open
Abstract
The discovery of molecules that interfere with the binding of a ligand to a receptor remains a topic of great interest in medicinal chemistry. Herein, we report that a monosaccharide unit of a polysaccharide ligand can be replaced advantageously by a conformationally locked acyclic molecular entity. A cyclic component of the selectin ligand Sialyl Lewis(x), GlcNAc, is replaced by an acyclic tether, tartaric esters, which link two saccharide units. The conformational bias of this acyclic tether originates from the minimization of intramolecular dipole-dipole interaction and the gauche effect. The evaluation of the binding of these derivatives to P-selectin was measured by surface plasmon resonance spectroscopy. The results obtained in our pilot study suggest that the discovery of tunable tethers could facilitate the exploration of the carbohydrate recognition domain of various receptors.
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Affiliation(s)
| | | | | | | | | | | | - Yvan Guindon
- Département de Chimie, Université de Montréal, C.P. 6128, succursale Centre-ville, Montréal, Québec H3C 3J7, Canada
- Department of Chemistry, McGill University, Montréal, Québec H3A 2K6, Canada
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Raheem KS, Botting NP, Williamson G, Barron D. Total synthesis of 3,5-O-dicaffeoylquinic acid and its derivatives. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.10.127] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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P-selectin glycoprotein ligand regulates the interaction of multiple myeloma cells with the bone marrow microenvironment. Blood 2011; 119:1468-78. [PMID: 22096244 DOI: 10.1182/blood-2011-07-368050] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Interactions between multiple myeloma (MM) cells and the BM microenvironment play a critical role in the pathogenesis of MM and in the development of drug resistance by MM cells. Selectins are involved in extravasation and homing of leukocytes to target organs. In the present study, we focused on adhesion dynamics that involve P-selectin glycoprotein ligand-1 (PSGL-1) on MM cells and its interaction with selectins in the BM microenvironment. We show that PSGL-1 is highly expressed on MM cells and regulates the adhesion and homing of MM cells to cells in the BM microenvironment in vitro and in vivo. This interaction involves both endothelial cells and BM stromal cells. Using loss-of-function studies and the small-molecule pan-selectin inhibitor GMI-1070, we show that PSGL-1 regulates the activation of integrins and downstream signaling. We also document that this interaction regulates MM-cell proliferation in coculture with BM microenvironmental cells and the development of drug resistance. Furthermore, inhibiting this interaction with GMI-1070 enhances the sensitization of MM cells to bortezomib in vitro and in vivo. These data highlight the critical contribution of PSGL-1 to the regulation of growth, dissemination, and drug resistance in MM in the context of the BM microenvironment.
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16
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Chemoenzymatic syntheses of sialyl Lewis X–chitosan conjugate as potential anti-inflammatory agent. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.07.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Huang A, Moretto A, Janz K, Lowe M, Bedard PW, Tam S, Di L, Clerin V, Sushkova N, Tchernychev B, Tsao DHH, Keith JC, Shaw GD, Schaub RG, Wang Q, Kaila N. Discovery of 2-[1-(4-chlorophenyl)cyclopropyl]-3-hydroxy-8-(trifluoromethyl)quinoline-4-carboxylic acid (PSI-421), a P-selectin inhibitor with improved pharmacokinetic properties and oral efficacy in models of vascular injury. J Med Chem 2010; 53:6003-17. [PMID: 20718494 DOI: 10.1021/jm9013696] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Previously, we reported the discovery of PSI-697 (1a), a C-2 benzyl substituted quinoline salicylic acid-based P-selectin inhibitor. It is active in a variety of animal models of cardiovascular disease. Compound 1a has also been shown to be well tolerated and safe in healthy volunteers at doses of up to 1200 mg in a phase 1 single ascending dose study. However, its oral bioavailability was low. Our goal was to identify a back up compound with equal potency, increased solubility, and increased exposure. We expanded our structure-activity studies in this series by branching at the alpha position of the C-2 benzyl side chain and through modification of substituents on the carboxylic A-ring of the quinoline. This resulted in discovery of PSI-421 with marked improvement in aqueous solubility and pharmacokinetic properties. This compound has shown oral efficacy in animal models of arterial and venous injury and was selected as a preclinical development compound for potential treatment of such diseases as atherosclerosis and deep vein thrombosis.
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Affiliation(s)
- Adrian Huang
- Pfizer Global Research and Development, 200 Cambridge Park Drive, Cambridge, Massachusetts 02140, USA
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18
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Gouge-Ibert V, Pierry C, Poulain F, Serre AL, Largeau C, Escriou V, Scherman D, Jubault P, Quirion JC, Leclerc E. Synthesis of fluorinated C-mannopeptides as sialyl Lewisx mimics for E- and P-selectin inhibition. Bioorg Med Chem Lett 2010; 20:1957-60. [PMID: 20171887 DOI: 10.1016/j.bmcl.2010.01.141] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Revised: 01/21/2010] [Accepted: 01/23/2010] [Indexed: 10/19/2022]
Abstract
The synthesis of fluorinated C-mannopeptides and their evaluation as E- and P-selectin inhibitors is described. These molecules are difluorinated analogues of CH(2)-glycopeptides already reported to act as sLe(x) mimics. The alpha and beta anomers of these CF(2)-glycopeptides have been prepared, as well as their 1-hydroxy analogues which were present in solution as an equilibrium mixture of alpha- and beta-pyranose and alpha- and beta-furanose forms. These molecules showed inhibitory activities comparable to their CH(2) counterparts with a moderate influence of the pseudo-anomeric center configuration.
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Affiliation(s)
- Vanessa Gouge-Ibert
- Université et INSA de Rouen, CNRS, UMR6014 & FR3038-IRCOF, Mont Saint-Aignan Cedex, France
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20
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Shamay Y, Paulin D, Ashkenasy G, David A. Multivalent Display of Quinic Acid Based Ligands for Targeting E-Selectin Expressing Cells. J Med Chem 2009; 52:5906-15. [DOI: 10.1021/jm900308r] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yosi Shamay
- Department of Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Denise Paulin
- Université Pierre et Marie Curie, Case Courrier 256, 7 Quai St. Bernard, 75252 Paris Cedex 5, France
| | - Gonen Ashkenasy
- Department of Chemistry, Faculty of Natural Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Ayelet David
- Department of Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
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21
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Synthesis and biological evaluation of quinic acid derivatives as anti-inflammatory agents. Bioorg Med Chem Lett 2009; 19:5458-60. [DOI: 10.1016/j.bmcl.2009.07.096] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Revised: 07/16/2009] [Accepted: 07/20/2009] [Indexed: 11/17/2022]
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22
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Smith AJT, Zhang X, Leach AG, Houk KN. Beyond picomolar affinities: quantitative aspects of noncovalent and covalent binding of drugs to proteins. J Med Chem 2009; 52:225-33. [PMID: 19053779 DOI: 10.1021/jm800498e] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adam J T Smith
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
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23
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Segers D, Garcia-Garcia H, Cheng C, de Crom R, Krams R, Wentzel J, van der Steen A, Serruys P, Leenen P, Laman J. A primer on the immune system in the pathogenesis and treatment of atherosclerosis. EUROINTERVENTION 2008; 4:378-90. [DOI: 10.4244/eijv4i3a67] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Calvey CR, Toledo-Pereyra LH. Selectin inhibitors and their proposed role in ischemia and reperfusion. J INVEST SURG 2008; 20:71-85. [PMID: 17454392 DOI: 10.1080/08941930701250212] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The selectin family of cellular adhesion molecules plays an important role in the cellular infiltration and molecular signaling associated with ischemia/reperfusion (I/R). Selectins are essential in the recruitment and infiltration of leukocytes to sites of inflammation, and consequently, selectin blockade represents an important area of current research in the potential alleviation of the cell-mediated injury associated with I/R. Previously, treatments targeted at only a single selectin have proven ineffective, due to compensation by uninhibited cell-adhesion molecules. However, pan-selectin antagonists - those inhibitors capable of blocking the actions of all three selectins - have demonstrated great potential in blocking the initial events in the leukocyte-endothelium adhesion cascade. A number of therapeutics have been developed, with the most promising results demonstrated by a class of non-oligosaccharide, small-molecule selectin antagonists. TB-1269 and OC-229 are two of the most promising of inhibitors in this class - they are capable of binding all three selectins, they have been demonstrated to reduce neutrophil infiltration following ischemia/reperfusion, and they have been associated with reduced tissue damage in experimental animal models of ischemia/reperfusion involving the liver, the heart, the kidneys, and the whole body. Furthermore, TBC-1269 has recently undergone successful phase I and phase IIa clinical trials for asthma and psoriasis. Though the timing of selectin inhibition is essential in attenuating leukocyte infiltration and cell-mediated injury, the transient blockade of selectin function, in a well-controlled setting, could be an extremely beneficial intervention in ischemia/reperfusion injury.
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Affiliation(s)
- Colleen R Calvey
- College of Human Medicine, and Department of Research, Kalamazoo Center for Medical Studies, Michigan State University. Kalamazoo, MI 49048, USA
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25
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Smarrito CM, Munari C, Robert F, Barron D. A novel efficient and versatile route to the synthesis of 5-O-feruloylquinic acids. Org Biomol Chem 2008; 6:986-7. [DOI: 10.1039/b719132d] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Bedard PW, Clerin V, Sushkova N, Tchernychev B, Antrilli T, Resmini C, Keith JC, Hennan JK, Kaila N, Debernardo S, Janz K, Wang Q, Crandall DL, Schaub RG, Shaw GD, Carter LL. Characterization of the novel P-selectin inhibitor PSI-697 [2-(4-chlorobenzyl)-3-hydroxy-7,8,9,10-tetrahydrobenzo[h] quinoline-4-carboxylic acid] in vitro and in rodent models of vascular inflammation and thrombosis. J Pharmacol Exp Ther 2007; 324:497-506. [PMID: 18024786 DOI: 10.1124/jpet.107.128124] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
P-selectin plays a significant and well documented role in vascular disease by mediating leukocyte and platelet rolling and adhesion. This study characterizes the in vitro activity, pharmacokinetic properties, and the anti-inflammatory and antithrombotic efficacy of the orally active P-selectin small-molecule antagonist PSI-697 [2-(4-chlorobenzyl)-3-hydroxy-7,8,9,10-tetrahydrobenzo[h] quinoline-4-carboxylic acid; molecular mass, 367.83]. Biacore and cell-based assays were used to demonstrate the ability of PSI-697 to dose dependently inhibit the binding of human P-selectin to human P-selectin glycoprotein ligand-1, inhibiting 50% of binding at 50 to 125 microM. The pharmacokinetics of PSI-697 in rats were characterized by low clearance, short half-life, low volume of distribution, and moderate apparent oral bioavailability. A surgical inflammation model, using exteriorized rat cremaster venules, demonstrated that PSI-697 (50 mg/kg p.o.) significantly reduced the number of rolling leukocytes by 39% (P < 0.05) versus vehicle control. In a rat venous thrombosis model, PSI-697 (100 mg/kg p.o.) reduced thrombus weight by 18% (P < 0.05) relative to vehicle, without prolonging bleeding time. Finally, in a rat carotid injury model, PSI-697 (30 or 15 mg/kg p.o.) administered 1 h before arterial injury and once daily thereafter for 13 days resulted in dose-dependent decreases in intima/media ratios of 40.2% (P = 0.025) and 25.7% (P = 0.002) compared with vehicle controls. These data demonstrate the activity of PSI-697 in vitro and after oral administration in animal models of both arterial and venous injury and support the clinical evaluation of this novel antagonist of P-selectin in atherothrombotic and venous thrombotic indications.
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27
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Bock D, Philipp S, Wolff G. Therapeutic potential of selectin antagonists in psoriasis. Expert Opin Investig Drugs 2007; 15:963-79. [PMID: 16859397 DOI: 10.1517/13543784.15.8.963] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Psoriasis is a systemic chronic inflammatory disorder. One of the major characteristics is an excess of infiltration of inflammatory cells, mainly lymphocytes, into the skin. Because the adhesion family of selectins is suggested to play a relevant role in this process, selectins have emerged as an interesting target for drug discovery and development in psoriasis. Different strategies targeting selectins have been described. This review discusses these approaches and summarises the current development of selectin antagonists for the treatment of psoriasis. An expert opinion will give the authors' personal opinion about selectin antagonism in psoriasis and which approach might be preferable.
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Affiliation(s)
- Daniel Bock
- Revotar Biopharmaceuticals AG, Neuendorfstrasse 24a, 16761 Hennigsdorf, Germany.
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28
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Abstract
The C-type lectin dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin (DC-SIGN) is found on the surface of dendritic cells. It can mediate adhesion between dendritic cells and T lymphocytes and facilitate antigen capture and presentation. Many pathogens can exploit DC-SIGN binding for nefarious purposes. For example, DC-SIGN can facilitate the dissemination of viruses, like HIV-1. Alternatively, some microbes (e.g., Mycobacterium tuberculosis) use their ability to interact with DC-SIGN to evade immune detection. The diverse roles attributed to DC-SIGN provide impetus to identify ligands that can be used to explore its different functions. Such compounds also could serve as therapeutic leads. Most of the DC-SIGN ligands studied previously are mannose- or fucose-derived monosaccharides or oligosaccharides with inhibitory constants in the range of 0.1-10 mM. To identify monovalent ligands with more powerful DC-SIGN blocking properties, we devised a high-throughput fluorescence-based competition assay. This assay afforded potent non-carbohydrate, small molecule inhibitors (IC50 values of 1.6-10 microM). These compounds block not only DC-SIGN-carbohydrate interactions but also DC-SIGN-mediated cell adhesion. Thus, we anticipate that these non-carbohydrate inhibitors can be used to illuminate the role of DC-SIGN in pathogenesis and immune function.
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Affiliation(s)
- M. Jack Borrok
- Department of Biochemistry, University of Wisconsin, Madison, WI 53706
| | - Laura L. Kiessling
- Department of Biochemistry, University of Wisconsin, Madison, WI 53706
- Department of Chemistry, University of Wisconsin, Madison, WI 53706
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29
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Pérez-Castells J, Hernández-Gay JJ, Denton RW, Tony KA, Mootoo DR, Jiménez-Barbero J. The conformational behaviour and P-selectin inhibition of fluorine-containing sialyl LeX glycomimetics. Org Biomol Chem 2007; 5:1087-92. [PMID: 17377662 DOI: 10.1039/b615752a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combination of experimental J/NOE NMR data with molecular mechanics and dynamics calculations has been used to examine the conformational behaviour and assign the configuration of synthetically prepared epimeric 3-carboxymethyl-O-Gal-(1-->1)-alpha-Man-fluoro-C-glycosides. It is shown that the population distributions around the glycosidic linkages strongly depend on the configuration at the fluorinated carbon of the pseudoacetal residue. It is also shown that these compounds resemble the inhibition ability of sialyl LeX towards P-selectin.
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Affiliation(s)
- Javier Pérez-Castells
- Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain. .
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30
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Kranich R, Busemann AS, Bock D, Schroeter-Maas S, Beyer D, Heinemann B, Meyer M, Schierhorn K, Zahlten R, Wolff G, Aydt EM. Rational Design of Novel, Potent Small Molecule Pan-Selectin Antagonists. J Med Chem 2007; 50:1101-15. [PMID: 17302397 DOI: 10.1021/jm060536g] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This report describes the first results of a rational hit-finding strategy to design novel small molecule antiinflammatory drugs targeting selectins, a family of three cellular adhesion molecules. Based on recent progress in understanding of molecular interaction between selectins and their natural ligands as well as progress in clinical development of synthetic antagonists like 1 (bimosiamose, TBC1269), this study was initiated to discover small molecule selectin antagonists with improved pharmacological properties. Considering 1 as template structure, a ligand-based approach followed by focused chemical synthesis has been applied to yield novel synthetic small molecules (MWr < 500) with a trihydroxybenzene motif, bearing neither peptidic nor glycosidic components, with nanomolar in vitro activity. Biological evaluation involves two kinds of in vitro assays, a static molecular binding assay, and a dynamic HL-60 cell attachment assay. As compared to controls, the novel compounds showed improved biological in vitro activity both under static and dynamic conditions.
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Affiliation(s)
- Remo Kranich
- Revotar Biopharmaceuticals AG, Neuendorfstrasse 24a, 16761 Hennigsdorf, Germany
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31
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Denton RW, Cheng X, Tony KA, Dilhas A, Hernández JJ, Canales A, Jiménez-Barbero J, Mootoo DR. C-Disaccharides as Probes for Carbohydrate Recognition – Investigation of the Conformational Requirements for Binding of Disaccharide Mimetics of Sialyl Lewis X. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600825] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Kaila N, Janz K, Huang A, Moretto A, DeBernardo S, Bedard PW, Tam S, Clerin V, Keith JC, Tsao DHH, Sushkova N, Shaw GD, Camphausen RT, Schaub RG, Wang Q. 2-(4-Chlorobenzyl)-3-hydroxy-7,8,9,10-tetrahydrobenzo[H]quinoline-4-carboxylic Acid (PSI-697): Identification of a Clinical Candidate from the Quinoline Salicylic Acid Series of P-Selectin Antagonists. J Med Chem 2006; 50:40-64. [PMID: 17201409 DOI: 10.1021/jm060631p] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
P-selectin-PSGL-1 interaction causes rolling of leukocytes on the endothelial cell surface, which subsequently leads to firm adherence and leukocyte transmigration through the vessel wall into the surrounding tissues. P-selectin is upregulated on the surface of both platelets and endothelium in a variety of atherosclerosis-associated conditions. Consequently, inhibition of this interaction by means of a small molecule P-selectin antagonist is an attractive strategy for the treatment of atherosclerosis. High-throughput screening and subsequent analoging had led to the identification of compound 1 as the lead candidate. Herein, we report the continuation of this work and the discovery of a second-generation series, the tetrahydrobenzoquinoline salicylic acids. These compounds have improved pharmacokinetic properties, and a number of them have shown oral efficacy in mouse and rat models of atherogenesis and vascular injury. The lead 31 (PSI-697), is currently in clinical development for the treatment of atherothrombotic vascular events.
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Affiliation(s)
- Neelu Kaila
- Chemical and Screening Sciences, Cardiovascular and Metabolic Disease, Drug Safety and Metabolism, Wyeth Research, Cambridge, Massachusetts 02140, USA.
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33
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Kaila N, Janz K, DeBernardo S, Bedard PW, Camphausen RT, Tam S, Tsao DHH, Keith JC, Nickerson-Nutter C, Shilling A, Young-Sciame R, Wang Q. Synthesis and Biological Evaluation of Quinoline Salicylic Acids As P-Selectin Antagonists. J Med Chem 2006; 50:21-39. [PMID: 17201408 DOI: 10.1021/jm0602256] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Leukocyte recruitment of sites of inflammation and tissue injury involves leukocyte rolling along the endothelial wall, followed by firm adherence of the leukocyte, and finally transmigration of the leukocyte across cell junctions into the underlying tissue. The initial rolling step is mediated by the interaction of leukocyte glycoproteins containing active moieties such as sialyl Lewisx (sLex) with P-selectin expressed on endothelial cells. Consequently, inhibition of this interaction by means of a small molecule P-selectin antagonist is an attractive strategy for the treatment of inflammatory diseases such as arthritis. High-throughput screening of the Wyeth chemical library identified the quinoline salicylic acid class of compounds (1) as antagonists of P-selectin, with potency in in vitro and cell-based assays far superior to that of sLex. Through iterative medicinal chemistry, we identified analogues with improved P-selectin activity, decreased inhibition of dihydrooratate dehydrogenase, and acceptable CYP profiles. Lead compound 36 was efficacious in the rat AIA model of rheumatoid arthritis.
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Affiliation(s)
- Neelu Kaila
- Chemical and Screening Sciences, Cardiovascular and Metabolic Disease, Drug Safety and Metabolism, Inflammation, Wyeth Research, Cambridge, Massachusetts 02140, USA.
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34
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Dolle RE, Le Bourdonnec B, Morales GA, Moriarty KJ, Salvino JM. Comprehensive survey of combinatorial library synthesis: 2005. ACTA ACUST UNITED AC 2006; 8:597-635. [PMID: 16961395 DOI: 10.1021/cc060095m] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Roland E Dolle
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, USA.
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35
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Ulbrich HK, Luxenburger A, Prech P, Eriksson EE, Soehnlein O, Rotzius P, Lindbom L, Dannhardt G. A novel class of potent nonglycosidic and nonpeptidic pan-selectin inhibitors. J Med Chem 2006; 49:5988-99. [PMID: 17004713 DOI: 10.1021/jm060468y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An early step of the inflammatory response, the rolling of leukocytes on activated endothelial cells, is mediated by selectin/carbohydrate interactions. The tetrasaccharide sialy Lewisx is a ligand for E-, P-, and L-selectin and therefore serves as a lead structure for the development of analogues. A combination of synthesis and structure-based design allowed rapid optimization. The current lead 2a was evaluated in our E-selectin cell flow chamber assay where it proved to inhibit rolling and adhesion with an IC50 of 28+/-7 microM. The assays used are predictive for the in vivo efficacy of test compounds as shown for 2a in a proteose peptone induced peritonitis model of acute inflammation in mice.
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Affiliation(s)
- Holger K Ulbrich
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Johannes Gutenberg University, Staudingerweg 5, DE-55099 Mainz, Germany.
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36
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Orry AJW, Abagyan RA, Cavasotto CN. Structure-based development of target-specific compound libraries. Drug Discov Today 2006; 11:261-6. [PMID: 16580603 DOI: 10.1016/s1359-6446(05)03717-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The success or failure of a small-molecule drug discovery project ultimately lies in the choice of the scaffolds to be screened -- chosen from among the many millions of available compounds. Therefore, the methods used to design compound screening libraries are key for the development of new drugs that target a wide range of diseases. Currently, there is a trend towards the construction of receptor-structure-based focused libraries. Recent advances in high-throughput computational docking, NMR and crystallography have facilitated the development of these libraries. A structure-based target-specific library can save time and money by reducing the number of compounds to be experimentally tested, also improving the drug discovery success rate by identifying more-potent and specific binders.
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Affiliation(s)
- Andrew J W Orry
- Molsoft, 3366 N. Torrey Pines Ct Ste. 300, La Jolla, CA 92037, USA
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37
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Wienrich BG, Krahn T, Schön M, Rodriguez ML, Kramer B, Busemann M, Boehncke WH, Schön MP. Structure–Function Relation of Efomycines, a Family of Small-Molecule Inhibitors of Selectin Functions. J Invest Dermatol 2006; 126:882-9. [PMID: 16439964 DOI: 10.1038/sj.jid.5700159] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Selectin-mediated leukocyte adhesion to endothelia, the crucial first step initiating the pathogenic cascade of inflammation, is an attractive target for specific therapies. The small-molecule macrolide, efomycine M, inhibits selectin-mediated leukocyte adhesion in vitro and in vivo, and effectively alleviates inflammatory disorders in vivo. To define the molecular basis of the therapeutically relevant antiadhesive properties of efomycines, several new species of this family were purified and/or synthesized. Efomycines E and G were isolated from Steptomyces BS1261. Efomycine O was synthesized by Lewis acid-catalyzed acetalization and efomycine M was generated by base-catalyzed deglycosylation. Efomycine S resulted from ester cleavage of the macrolide ring system, and efomycine T represents the peracetylated form of efomycine M. When the functional activity of efomycines on adhesion of leukocytes to vascular endothelium was studied, some remarkable differences between the compounds became apparent, inasmuch as efomycines E, G, M, and O significantly inhibited adhesion of both human and porcine leukocytes to the vascular endothelium, whereas efomycines S and T did not show any biological activity. A novel docking engine (ProPose), generating an improved, fully configurable protein-ligand interaction model, demonstrated that biological activities of efomycines can be predicted in silico, thus highlighting the utility of such combinatorial approaches.
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Affiliation(s)
- B Gregor Wienrich
- Rudolf Virchow Center, DFG Research Center for Experimental Biomedicine and Department of Dermatology, Julius Maximilians University, Würzburg, Germany
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Abstract
We identified 1113 articles (103 reviews, 1010 primary research articles) published in 2005 that describe experiments performed using commercially available optical biosensors. While this number of publications is impressive, we find that the quality of the biosensor work in these articles is often pretty poor. It is a little disappointing that there appears to be only a small set of researchers who know how to properly perform, analyze, and present biosensor data. To help focus the field, we spotlight work published by 10 research groups that exemplify the quality of data one should expect to see from a biosensor experiment. Also, in an effort to raise awareness of the common problems in the biosensor field, we provide side-by-side examples of good and bad data sets from the 2005 literature.
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Affiliation(s)
- Rebecca L Rich
- Center for Biomolecular Interaction Analysis, University of Utah, Salt Lake City, UT 84132, USA
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