1
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Pant A, Hwa-Lin Bergsneider B, Srivastava S, Kim T, Jain A, Bom S, Shah P, Kannapadi N, Patel K, Choi J, Cho KB, Verma R, Yu-Ju Wu C, Brem H, Tyler B, Pardoll DM, Jackson C, Lim M. CCR2 and CCR5 co-inhibition modulates immunosuppressive myeloid milieu in glioma and synergizes with anti-PD-1 therapy. Oncoimmunology 2024; 13:2338965. [PMID: 38590799 PMCID: PMC11000615 DOI: 10.1080/2162402x.2024.2338965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/01/2024] [Indexed: 04/10/2024] Open
Abstract
Immunotherapy has revolutionized the treatment of cancers. Reinvigorating lymphocytes with checkpoint blockade has become a cornerstone of immunotherapy for multiple tumor types, but the treatment of glioblastoma has not yet shown clinical efficacy. A major hurdle to treat GBM with checkpoint blockade is the high degree of myeloid-mediated immunosuppression in brain tumors that limits CD8 T-cell activity. A potential strategy to improve anti-tumor efficacy against glioma is to use myeloid-modulating agents to target immunosuppressive cells, such as myeloid-derived suppressor cells (MDSCs) in the tumor microenvironment. We found that the co-inhibition of the chemokine receptors CCR2 and CCR5 in murine model of glioma improves the survival and synergizes robustly with anti-PD-1 therapy. Moreover, the treatment specifically reduced the infiltration of monocytic-MDSCs (M-MDSCs) into brain tumors and increased lymphocyte abundance and cytokine secretion by tumor-infiltrating CD8 T cells. The depletion of T-cell subsets and myeloid cells abrogated the effects of CCR2 and CCR5 blockade, indicating that while broad depletion of myeloid cells does not improve survival, specific reduction in the infiltration of immunosuppressive myeloid cells, such as M-MDSCs, can boost the anti-tumor immune response of lymphocytes. Our study highlights the potential of CCR2/CCR5 co-inhibition in reducing myeloid-mediated immunosuppression in GBM patients.
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Affiliation(s)
- Ayush Pant
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Siddhartha Srivastava
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Timothy Kim
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Aanchal Jain
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sadhana Bom
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Pavan Shah
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nivedha Kannapadi
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kisha Patel
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - John Choi
- Department of Neurosurgery, Stanford School of Medicine, Palo Alto, CA, USA
| | - Kwang Bog Cho
- Department of Neurosurgery, Stanford School of Medicine, Palo Alto, CA, USA
| | - Rohit Verma
- Department of Neurosurgery, Stanford School of Medicine, Palo Alto, CA, USA
| | - Caren Yu-Ju Wu
- Department of Neurosurgery, Stanford School of Medicine, Palo Alto, CA, USA
| | - Henry Brem
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Betty Tyler
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Drew M. Pardoll
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Christina Jackson
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Michael Lim
- Department of Neurosurgery, Stanford School of Medicine, Palo Alto, CA, USA
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2
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Dawson JRD, Wadman GM, Zhang P, Tebben A, Carter PH, Gu S, Shroka T, Borrega-Roman L, Salanga CL, Handel TM, Kufareva I. Molecular determinants of antagonist interactions with chemokine receptors CCR2 and CCR5. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.15.567150. [PMID: 38014122 PMCID: PMC10680698 DOI: 10.1101/2023.11.15.567150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
By driving monocyte chemotaxis, the chemokine receptor CCR2 shapes inflammatory responses and the formation of tumor microenvironments. This makes it a promising target in inflammation and immuno-oncology; however, despite extensive efforts, there are no FDA-approved CCR2-targeting therapeutics. Cited challenges include the redundancy of the chemokine system, suboptimal properties of compound candidates, and species differences that confound the translation of results from animals to humans. Structure-based drug design can rationalize and accelerate the discovery and optimization of CCR2 antagonists to address these challenges. The prerequisites for such efforts include an atomic-level understanding of the molecular determinants of action of existing antagonists. In this study, using molecular docking and artificial-intelligence-powered compound library screening, we uncover the structural principles of small molecule antagonism and selectivity towards CCR2 and its sister receptor CCR5. CCR2 orthosteric inhibitors are shown to universally occupy an inactive-state-specific tunnel between receptor helices 1 and 7; we also discover an unexpected role for an extra-helical groove accessible through this tunnel, suggesting its potential as a new targetable interface for CCR2 and CCR5 modulation. By contrast, only shape complementarity and limited helix 8 hydrogen bonding govern the binding of various chemotypes of allosteric antagonists. CCR2 residues S1012.63 and V2446.36 are implicated as determinants of CCR2/CCR5 and human/mouse orthosteric and allosteric antagonist selectivity, respectively, and the role of S1012.63 is corroborated through experimental gain-of-function mutagenesis. We establish a critical role of induced fit in antagonist recognition, reveal strong chemotype selectivity of existing structures, and demonstrate the high predictive potential of a new deep-learning-based compound scoring function. Finally, this study expands the available CCR2 structural landscape with computationally generated chemotype-specific models well-suited for structure-based antagonist design.
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Affiliation(s)
- John R D Dawson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Grant M Wadman
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | | | | | - Percy H Carter
- Bristol Myers Squibb Company, Princeton, NJ, USA
- (current affiliation) Blueprint Medicines, Cambridge, MA, USA
| | - Siyi Gu
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
- (current affiliation) Lycia Therapeutics, South San Francisco, CA
| | - Thomas Shroka
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
- (current affiliation) Avidity Biosciences Inc., San Diego, CA
| | - Leire Borrega-Roman
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Catherina L Salanga
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Tracy M Handel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Irina Kufareva
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
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3
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Teng T, Qiu S, Zhao Y, Zhao S, Sun D, Hou L, Li Y, Zhou K, Yu X, Yang C, Li Y. Pathogenesis and Therapeutic Strategies Related to Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2022; 23:ijms23147841. [PMID: 35887189 PMCID: PMC9322253 DOI: 10.3390/ijms23147841] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 12/10/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD), one of the most common types of chronic liver disease, is strongly correlated with obesity, insulin resistance, metabolic syndrome, and genetic components. The pathological progression of NAFLD, consisting of non-alcoholic fatty liver (NAFL), non-alcoholic steatohepatitis (NASH), and liver cirrhosis, is characterized by a broad spectrum of clinical phenotypes. Although patients with mild NAFL are considered to show no obvious clinical symptoms, patients with long-term NAFL may culminate in NASH and further liver fibrosis. Even though various drugs are able to improve NAFLD, there are no FDA-approved medications that directly treat NAFLD. In this paper, the pathogenesis of NAFLD, the potential therapeutic targets, and their underlying mechanisms of action were reviewed.
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Affiliation(s)
- Tieshan Teng
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- School of Nursing and Health, Henan University, Kaifeng 475004, China
| | - Shuai Qiu
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- School of Nursing and Health, Henan University, Kaifeng 475004, China
| | - Yiming Zhao
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Siyuan Zhao
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Dequan Sun
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Lingzhu Hou
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Yihang Li
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Ke Zhou
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Xixi Yu
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
| | - Changyong Yang
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- School of Nursing and Health, Henan University, Kaifeng 475004, China
- Correspondence: or (C.Y.); (Y.L.)
| | - Yanzhang Li
- Institute of Biomedical Informatics, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China; (T.T.); (S.Q.); (Y.Z.); (S.Z.); (D.S.); (L.H.); (Y.L.); (K.Z.); (X.Y.)
- Correspondence: or (C.Y.); (Y.L.)
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4
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Yang MG, Xiao Z, Zhao R, Tebben AJ, Wang B, Cherney RJ, Batt DG, Brown GD, Cvijic ME, Duncia JV, Gallela MA, Gardner DS, Khandelwal P, Malley MF, Pang J, Rose AV, Santella JB, Sarjeant AA, Xu S, Mathur A, Mandlekar S, Vuppugalla R, Zhao Q, Carter PH. Discovery of BMS-753426: A Potent Orally Bioavailable Antagonist of CC Chemokine Receptor 2. ACS Med Chem Lett 2021; 12:969-975. [PMID: 34141082 DOI: 10.1021/acsmedchemlett.1c00082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/20/2021] [Indexed: 12/18/2022] Open
Abstract
To improve the metabolic stability profile of BMS-741672 (1a), we undertook a structure-activity relationship study in our trisubstituted cyclohexylamine series. This ultimately led to the identification of 2d (BMS-753426) as a potent and orally bioavailable antagonist of CCR2. Compared to previous clinical candidate 1a, the tert-butyl amine 2d showed significant improvements in pharmacokinetic properties, with lower clearance and higher oral bioavailability. Furthermore, compound 2d exhibited improved affinity for CCR5 and good activity in models of both monocyte migration and multiple sclerosis in the hCCR2 knock-in mouse. The synthesis of 2d was facilitated by the development of a simplified approach to key intermediate (4R)-9b that deployed a stereoselective reductive amination which may prove to be of general interest.
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Affiliation(s)
- Michael G. Yang
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Zili Xiao
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Rulin Zhao
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Andrew J. Tebben
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Bei Wang
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Robert J. Cherney
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Douglas G. Batt
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Gregory D. Brown
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Mary Ellen Cvijic
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - John V. Duncia
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Michael A. Gallela
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Daniel S. Gardner
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Purnima Khandelwal
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Mary F. Malley
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Jian Pang
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Anne V. Rose
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Joseph B. Santella
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Amy A. Sarjeant
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Songmei Xu
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Arvind Mathur
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Sandhya Mandlekar
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Ragini Vuppugalla
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Qihong Zhao
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
| | - Percy H. Carter
- Research and Development, Bristol Myers Squibb Company, Princeton, New Jersey 08543-4000, United States
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5
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Jin H, Xia J, Liu Z, Wang XS, Zhang L. A unique ligand-steered strategy for CC chemokine receptor 2 homology modeling to facilitate structure-based virtual screening. Chem Biol Drug Des 2021; 97:944-961. [PMID: 33386704 PMCID: PMC8048943 DOI: 10.1111/cbdd.13820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/12/2020] [Accepted: 12/13/2020] [Indexed: 12/29/2022]
Abstract
CC chemokine receptor 2 (CCR2) antagonists that disrupt CCR2/MCP-1 interaction are expected to treat a variety of inflammatory and autoimmune diseases. The lack of CCR2 crystal structure limits the application of structure-based drug design (SBDD) to this target. Although a few three-dimensional theoretical models have been reported, their accuracy remains to be improved in terms of templates and modeling approaches. In this study, we developed a unique ligand-steered strategy for CCR2 homology modeling. It starts with an initial model based on the X-ray structure of the closest homolog so far, that is, CXCR4. Then, it uses Elastic Network Normal Mode Analysis (EN-NMA) and flexible docking (FD) by AutoDock Vina software to generate ligand-induced fit models. It selects optimal model(s) as well as scoring function(s) via extensive evaluation of model performance based on a unique benchmarking set constructed by our in-house tool, that is, MUBD-DecoyMaker. The model of 81_04 presents the optimal enrichment when combined with the scoring function of PMF04, and the proposed binding mode between CCR2 and Teijin lead by this model complies with the reported mutagenesis data. To highlight the advantage of our strategy, we compared it with the only reported ligand-steered strategy for CCR2 homology modeling, that is, Discovery Studio/Ligand Minimization. Lastly, we performed prospective virtual screening based on 81_04 and CCR2 antagonist bioassay. The identification of two hit compounds, that is, E859-1281 and MolPort-007-767-945, validated the efficacy of our model and the ligand-steered strategy.
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Affiliation(s)
- Hongwei Jin
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Jie Xia
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesDepartment of New Drug Research and DevelopmentInstitute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Zhenming Liu
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijingChina
| | - Xiang Simon Wang
- Molecular Modeling and Drug Discovery Core for District of Columbia Center for AIDS Research (DC CFAR)Laboratory of Cheminformatics and Drug DesignDepartment of Pharmaceutical SciencesCollege of PharmacyHoward UniversityWashingtonDCUSA
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijingChina
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6
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An X, Bai Q, Bing Z, Liu H, Zhang Q, Liu H, Yao X. Revealing the Positive Binding Cooperativity Mechanism between the Orthosteric and the Allosteric Antagonists of CCR2 by Metadynamics and Gaussian Accelerated Molecular Dynamics Simulations. ACS Chem Neurosci 2020; 11:628-637. [PMID: 31968162 DOI: 10.1021/acschemneuro.9b00630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
CC chemokine receptor 2 (CCR2) and its endogenous CC chemokine ligands are associated with numerous inflammatory, neurodegenerative diseases, and cancer. CCR2 is becoming an attractive target in the treatment of autoimmune disease and neurodegenerative diseases. The orthosteric antagonist BMS-681 and allosteric antagonist CCR2-RA-[R] of CCR2 show positive binding cooperativity. We performed well-tempered metadynamics simulations and Gaussian accelerated MD simulations to reveal the influence of the orthosteric antagonist on the unbinding of allosteric antagonist of CCR2. We revealed different unbinding pathways of CCR2-RA-[R] in binary complex CCR2-VT5 and ternary complex CCR2-73R-VT5. The different unbinding pathways of CCR2-RA-[R] are due to the conformational dynamics of TM6. We obtained the significant conformational differences of the intracellular side of TM6 upon CCR2 binding to different ligands by GaMD simulation. The conformational dynamics of TM6 are consistent with the unbinding pathway analysis. GaMD simulations indicate that BMS-681 binding restricts the bend of intracellular side of TM6 by stabilizing the extracellular sides of TM6 and TM7. The charged residues Arg2065.43 of TM5 and Glu2917.39 of TM7 play key roles in stabling TM7 and TM6. TM6 and TM7 are crucial components in the orthosteric and allosteric binding sites. Our results illustrate the conformational details about the effect of the orthosteric antagonist on the allosteric antagonist of CCR2. The conformational dynamics of CCR2 upon binding to different ligands can provide a rational basis for development of allosteric ligands of CCR2.
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Affiliation(s)
- Xiaoli An
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Qifeng Bai
- School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Zhitong Bing
- School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
- Institute of Modern Physics of Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
| | - Hongli Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Qianqian Zhang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Huanxiang Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaojun Yao
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
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7
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Yang MG, Xiao Z, Cherney RJ, Tebben AJ, Batt DG, Brown GD, Chen J, Cvijic ME, Dabros M, Duncia JV, Galella M, Gardner DS, Khandelwal P, Ko SS, Malley MF, Mo R, Pang J, Rose AV, Santella JB, Shi H, Srivastava A, Traeger SC, Wang B, Xu S, Zhao R, Barrish JC, Mandlekar S, Zhao Q, Carter PH. Use of a Conformational-Switching Mechanism to Modulate Exposed Polarity: Discovery of CCR2 Antagonist BMS-741672. ACS Med Chem Lett 2019; 10:300-305. [PMID: 30891130 DOI: 10.1021/acsmedchemlett.8b00439] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 01/16/2019] [Indexed: 12/21/2022] Open
Abstract
We encountered a dilemma in the course of studying a series of antagonists of the G-protein coupled receptor CC chemokine receptor-2 (CCR2): compounds with polar C3 side chains exhibited good ion channel selectivity but poor oral bioavailability, whereas compounds with lipophilic C3 side chains exhibited good oral bioavailability in preclinical species but poor ion channel selectivity. Attempts to solve this through the direct modulation of physicochemical properties failed. However, the installation of a protonation-dependent conformational switching mechanism resolved the problem because it enabled a highly selective and relatively polar molecule to access a small population of a conformer with lower polar surface area and higher membrane permeability. Optimization of the overall properties in this series yielded the CCR2 antagonist BMS-741672 (7), which embodied properties suitable for study in human clinical trials.
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Affiliation(s)
- Michael G. Yang
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Zili Xiao
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Robert J. Cherney
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Andrew J. Tebben
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Douglas G. Batt
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Gregory D. Brown
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jing Chen
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Mary Ellen Cvijic
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Marta Dabros
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - John V. Duncia
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Michael Galella
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Daniel S. Gardner
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Purnima Khandelwal
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Soo S. Ko
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Mary F. Malley
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Ruowei Mo
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jian Pang
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Anne V. Rose
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Joseph B. Santella
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Hong Shi
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Anurag Srivastava
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Sarah C. Traeger
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Bei Wang
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Songmei Xu
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Rulin Zhao
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Joel C. Barrish
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Sandhya Mandlekar
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Qihong Zhao
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Percy H. Carter
- Bristol-Myers Squibb Company, Research and Development, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
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8
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Cheng B, Yuan WE, Su J, Liu Y, Chen J. Recent advances in small molecule based cancer immunotherapy. Eur J Med Chem 2018; 157:582-598. [PMID: 30125720 DOI: 10.1016/j.ejmech.2018.08.028] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 07/29/2018] [Accepted: 08/10/2018] [Indexed: 02/07/2023]
Abstract
Immunotherapy has been increasingly utilized for the treatment of cancer. Currently available cancer immunotherapies mainly involve the use of antibodies, which have advantages in terms of pharmacodynamics such as efficacy and specificity, however, they exhibit disadvantages in regard to the pharmacokinetics including but not limited to poor tissue and tumor penetration, very long half-life, and the lack of oral bioavailability. Also they are immunogenic and may cause undesired side effects. In addition, they are difficult and expensive to produce. In contrast to therapeutic antibodies, small molecule immuno-oncology agents generally have favorable pharmacokinetics, for example, better oral bioavailability, higher tissue and tumor penetration, reasonable half-lives etc. Furthermore, some small molecules are highly selective and efficacious with benign toxicity profiles. Therefore, small molecule immuno-oncology agents have the potential to overcome the drawbacks of therapeutic antibodies, and they can complement existing therapeutic antibodies and may also be used in combination with antibodies to achieve synergistic effects. In this article, we summarize the current advances in the field of small molecule approaches in tumor immunology which include the small molecules in clinical trials and preclinical studies, and the reported crystal structures of small molecules and their target proteins as well as the binding interactions between small molecules and the targets. The tumorigenesis mechanism of different targets (the programmed cell death 1/programmed cell death ligand 1(PD1/PD-L1), retinoic acid-related orphan receptor-gamma t (RORγt), Chemokine receptor, Stimulator of Interferon Genes (Sting), Indoleamine 2,3-dioxygenase (IDO), toll-like receptors (TLR) etc.) are also elucidated.
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Affiliation(s)
- Binbin Cheng
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wei-En Yuan
- School of Pharmacy, Shanghai Jiao Tong Univerisity, Shanghai, 200240, China
| | - Jing Su
- School of Pharmacy, Shanghai Jiao Tong Univerisity, Shanghai, 200240, China
| | - Yao Liu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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9
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Kufareva I, Gustavsson M, Zheng Y, Stephens BS, Handel TM. What Do Structures Tell Us About Chemokine Receptor Function and Antagonism? Annu Rev Biophys 2017; 46:175-198. [PMID: 28532213 PMCID: PMC5764094 DOI: 10.1146/annurev-biophys-051013-022942] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Chemokines and their cell surface G protein-coupled receptors are critical for cell migration, not only in many fundamental biological processes but also in inflammatory diseases and cancer. Recent X-ray structures of two chemokines complexed with full-length receptors provided unprecedented insight into the atomic details of chemokine recognition and receptor activation, and computational modeling informed by new experiments leverages these insights to gain understanding of many more receptor:chemokine pairs. In parallel, chemokine receptor structures with small molecules reveal the complicated and diverse structural foundations of small molecule antagonism and allostery, highlight the inherent physicochemical challenges of receptor:chemokine interfaces, and suggest novel epitopes that can be exploited to overcome these challenges. The structures and models promote unique understanding of chemokine receptor biology, including the interpretation of two decades of experimental studies, and will undoubtedly assist future drug discovery endeavors.
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Affiliation(s)
- Irina Kufareva
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093; ,
| | - Martin Gustavsson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093; ,
| | - Yi Zheng
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093; ,
| | - Bryan S Stephens
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093; ,
| | - Tracy M Handel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093; ,
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10
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Ahmed M, Basheer HA, Ayuso JM, Ahmet D, Mazzini M, Patel R, Shnyder SD, Vinader V, Afarinkia K. Agarose Spot as a Comparative Method for in situ Analysis of Simultaneous Chemotactic Responses to Multiple Chemokines. Sci Rep 2017; 7:1075. [PMID: 28432337 PMCID: PMC5430824 DOI: 10.1038/s41598-017-00949-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 03/20/2017] [Indexed: 01/07/2023] Open
Abstract
We describe a novel protocol to quantitatively and simultaneously compare the chemotactic responses of cells towards different chemokines. In this protocol, droplets of agarose gel containing different chemokines are applied onto the surface of a Petri dish, and then immersed under culture medium in which cells are suspended. As chemokine molecules diffuse away from the spot, a transient chemoattractant gradient is established across the spots. Cells expressing the corresponding cognate chemokine receptors migrate against this gradient by crawling under the agarose spots towards their centre. We show that this migration is chemokine-specific; meaning that only cells that express the cognate chemokine cell surface receptor, migrate under the spot containing its corresponding chemokine ligand. Furthermore, we show that migration under the agarose spot can be modulated by selective small molecule antagonists present in the cell culture medium.
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Affiliation(s)
- Mohaned Ahmed
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Haneen A Basheer
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Jose M Ayuso
- Group of Structural Mechanics and Material Modelling, Universidad Zaragoza, Zaragoza, Spain.,Department of Biomedical Engineering, Wisconsin Institutes for Medical Research, and The University of Wisconsin Carbone Cancer Center Madison, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Djevdet Ahmet
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Marco Mazzini
- Dipartimento di Scienza e Tecnologia del Farmaco, Universitá Degli Studi di Torino, Via P. Giuria 9, 10125, Torino, Italy
| | - Roshan Patel
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Steven D Shnyder
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Victoria Vinader
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Kamyar Afarinkia
- The Institute of Cancer Therapeutics, University of Bradford, West Yorkshire, BD7 1DP, United Kingdom.
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11
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Arimont M, Sun SL, Leurs R, Smit M, de Esch IJP, de Graaf C. Structural Analysis of Chemokine Receptor-Ligand Interactions. J Med Chem 2017; 60:4735-4779. [PMID: 28165741 PMCID: PMC5483895 DOI: 10.1021/acs.jmedchem.6b01309] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
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This
review focuses on the construction and application of structural chemokine
receptor models for the elucidation of molecular determinants of chemokine
receptor modulation and the structure-based discovery and design of
chemokine receptor ligands. A comparative analysis of ligand binding
pockets in chemokine receptors is presented, including a detailed
description of the CXCR4, CCR2, CCR5, CCR9, and US28 X-ray structures,
and their implication for modeling molecular interactions of chemokine
receptors with small-molecule ligands, peptide ligands, and large
antibodies and chemokines. These studies demonstrate how the integration
of new structural information on chemokine receptors with extensive
structure–activity relationship and site-directed mutagenesis
data facilitates the prediction of the structure of chemokine receptor–ligand
complexes that have not been crystallized. Finally, a review of structure-based
ligand discovery and design studies based on chemokine receptor crystal
structures and homology models illustrates the possibilities and challenges
to find novel ligands for chemokine receptors.
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Affiliation(s)
- Marta Arimont
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Shan-Liang Sun
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Rob Leurs
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Martine Smit
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Iwan J P de Esch
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Chris de Graaf
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute of Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam , De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
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12
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Zheng Y, Qin L, Zacarías NVO, de Vries H, Han GW, Gustavsson M, Dabros M, Zhao C, Cherney RJ, Carter P, Stamos D, Abagyan R, Cherezov V, Stevens RC, IJzerman AP, Heitman LH, Tebben A, Kufareva I, Handel TM. Structure of CC chemokine receptor 2 with orthosteric and allosteric antagonists. Nature 2016; 540:458-461. [PMID: 27926736 PMCID: PMC5159191 DOI: 10.1038/nature20605] [Citation(s) in RCA: 198] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 11/07/2016] [Indexed: 12/20/2022]
Abstract
CC chemokine receptor 2 (CCR2) is one of 19 members of the chemokine receptor subfamily of human class A G-protein-coupled receptors. CCR2 is expressed on monocytes, immature dendritic cells, and T-cell subpopulations, and mediates their migration towards endogenous CC chemokine ligands such as CCL2 (ref. 1). CCR2 and its ligands are implicated in numerous inflammatory and neurodegenerative diseases including atherosclerosis, multiple sclerosis, asthma, neuropathic pain, and diabetic nephropathy, as well as cancer. These disease associations have motivated numerous preclinical studies and clinical trials (see http://www.clinicaltrials.gov) in search of therapies that target the CCR2-chemokine axis. To aid drug discovery efforts, here we solve a structure of CCR2 in a ternary complex with an orthosteric (BMS-681 (ref. 6)) and allosteric (CCR2-RA-[R]) antagonist. BMS-681 inhibits chemokine binding by occupying the orthosteric pocket of the receptor in a previously unseen binding mode. CCR2-RA-[R] binds in a novel, highly druggable pocket that is the most intracellular allosteric site observed in class A G-protein-coupled receptors so far; this site spatially overlaps the G-protein-binding site in homologous receptors. CCR2-RA-[R] inhibits CCR2 non-competitively by blocking activation-associated conformational changes and formation of the G-protein-binding interface. The conformational signature of the conserved microswitch residues observed in double-antagonist-bound CCR2 resembles the most inactive G-protein-coupled receptor structures solved so far. Like other protein-protein interactions, receptor-chemokine complexes are considered challenging therapeutic targets for small molecules, and the present structure suggests diverse pocket epitopes that can be exploited to overcome obstacles in drug design.
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Affiliation(s)
- Yi Zheng
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
| | - Ling Qin
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
| | - Natalia V Ortiz Zacarías
- Division of Medicinal Chemistry, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden 2333 CC, The Netherlands
| | - Henk de Vries
- Division of Medicinal Chemistry, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden 2333 CC, The Netherlands
| | - Gye Won Han
- Bridge Institute, Departments of Chemistry and Physics &Astronomy, University of Southern California, Los Angeles, California 90089, USA
| | - Martin Gustavsson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
| | - Marta Dabros
- Bristol-Myers Squibb Company, Princeton, New Jersey 08543, USA
| | - Chunxia Zhao
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
| | | | - Percy Carter
- Bristol-Myers Squibb Company, Princeton, New Jersey 08543, USA
| | - Dean Stamos
- Vertex Pharmaceuticals Inc., 11010 Torreyana Road, San Diego, California 92121, USA
| | - Ruben Abagyan
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
| | - Vadim Cherezov
- Bridge Institute, Departments of Chemistry and Physics &Astronomy, University of Southern California, Los Angeles, California 90089, USA
| | - Raymond C Stevens
- The Bridge Institute, Departments of Biological Sciences and Chemistry, University of Southern California, Los Angeles, California 90089, USA
| | - Adriaan P IJzerman
- Division of Medicinal Chemistry, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden 2333 CC, The Netherlands
| | - Laura H Heitman
- Division of Medicinal Chemistry, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden 2333 CC, The Netherlands
| | - Andrew Tebben
- Bristol-Myers Squibb Company, Princeton, New Jersey 08543, USA
| | - Irina Kufareva
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
| | - Tracy M Handel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA
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13
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Brown GD, Shi Q, Delucca GV, Batt DG, Galella MA, Cvijic ME, Liu RQ, Qiu F, Zhao Q, Barrish JC, Carter PH. Discovery and synthesis of cyclohexenyl derivatives as modulators of CC chemokine receptor 2 activity. Bioorg Med Chem Lett 2015; 26:662-666. [PMID: 26631321 DOI: 10.1016/j.bmcl.2015.11.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/11/2015] [Accepted: 11/16/2015] [Indexed: 10/22/2022]
Abstract
A novel cyclohexenyl series of CCR2 antagonists has been discovered. This series of small, rigid compounds exhibits submicromolar binding affinity for CCR2. Modification of the substituents on the cyclohexene ring led to the identification of potent CCR2 antagonists. Progress from initial lead 5 (IC50=700nM) to (-)-38 (IC50=9.0nM) is discussed.
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Affiliation(s)
- Gregory D Brown
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States.
| | - Qing Shi
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - George V Delucca
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Douglas G Batt
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Michael A Galella
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Mary-Ellen Cvijic
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Rui-Qin Liu
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Feng Qiu
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Qihong Zhao
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Joel C Barrish
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
| | - Percy H Carter
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, NJ 08543-4000, United States
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14
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Craig W, Chen J, Richardson D, Thorpe R, Yuan Y. A Highly Stereoselective and Scalable Synthesis of l-allo-Enduracididine. Org Lett 2015; 17:4620-3. [DOI: 10.1021/acs.orglett.5b02362] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William Craig
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
| | - Janet Chen
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
| | - David Richardson
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
| | - Rondel Thorpe
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
| | - Yu Yuan
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
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