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Kong D, Tian Q, Chen Z, Zheng H, Stashko MA, Yan D, Earp HS, Frye SV, DeRyckere D, Kireev D, Graham DK, Wang X. Discovery of Novel Macrocyclic MERTK/AXL Dual Inhibitors. J Med Chem 2024; 67:5866-5882. [PMID: 38556760 DOI: 10.1021/acs.jmedchem.4c00148] [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: 04/02/2024]
Abstract
MERTK and AXL are members of the TAM (TYRO3, AXL, MERTK) family of receptor tyrosine kinases that are aberrantly expressed and have been implicated as therapeutic targets in a wide variety of human tumors. Dual MERTK and AXL inhibition could provide antitumor action mediated by both direct tumor cell killing and modulation of the innate immune response in some tumors such as nonsmall cell lung cancer. We utilized our knowledge of MERTK inhibitors and a structure-based drug design approach to discover a novel class of macrocyclic dual MERTK/AXL inhibitors. The lead compound 43 had low-nanomolar activity against both MERTK and AXL and good selectivity over TYRO3 and FLT3. Its target engagement and selectivity were also confirmed by NanoBRET and cell-based MERTK and AXL phosphorylation assays. Compound 43 had excellent pharmacokinetic properties (large AUC and long half-life) and mediated antitumor activity against lung cancer cell lines, indicating its potential as a therapeutic agent.
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Affiliation(s)
- Deyu Kong
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
| | - Qiang Tian
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
| | - Zhilong Chen
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
| | - Hongchao Zheng
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
| | - Michael A Stashko
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
| | - Dan Yan
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, Georgia 30322, United States
| | - H Shelton Earp
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Lineberger Comprehensive Cancer Center, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Stephen V Frye
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
- Lineberger Comprehensive Cancer Center, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Deborah DeRyckere
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, Georgia 30322, United States
| | - Dmitri Kireev
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
| | - Douglas K Graham
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, Georgia 30322, United States
| | - Xiaodong Wang
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, Chapel Hill, North Carolina 27599-7355, United States
- Lineberger Comprehensive Cancer Center, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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Hua Y, Luo L, Qiu H, Huang D, Zhao Y, Liu H, Lu T, Chen Y, Zhang Y, Jiang Y. Multimodal multi-task deep neural network framework for kinase-target prediction. Mol Divers 2023; 27:2491-2503. [PMID: 36369613 DOI: 10.1007/s11030-022-10565-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/01/2022] [Indexed: 11/13/2022]
Abstract
Kinase plays a significant role in various disease signaling pathways. Due to the highly conserved sequence of kinase family members, understanding the selectivity profile of kinase inhibitors remains a priority for drug discovery. Previous methods for kinase selectivity identification use biochemical assays, which are very useful but limited by the protein available. The lack of kinase selectivity can exert benefits but also can cause adverse effects. With the explosion of the dataset for kinase activities, current computational methods can achieve accuracy for large-scale selectivity predictions. Here, we present a multimodal multi-task deep neural network model for kinase selectivity prediction by calculating the fingerprint and physiochemical descriptors. With the multimodal inputs of structure and physiochemical properties information, the multi-task framework could accurately predict the kinome map for selectivity analysis. The proposed model displays better performance for kinase-target prediction based on system evaluations.
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Affiliation(s)
- Yi Hua
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Lin Luo
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Haodi Qiu
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Dingfang Huang
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Yang Zhao
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Haichun Liu
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Tao Lu
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, China
| | - Yadong Chen
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China.
| | - Yanmin Zhang
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China.
| | - Yulei Jiang
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China.
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Lambo DJ, Lebedenko CG, McCallum PA, Banerjee IA. Molecular dynamics, MMGBSA, and docking studies of natural products conjugated to tumor-targeted peptide for targeting BRAF V600E and MERTK receptors. Mol Divers 2023; 27:389-423. [PMID: 35505173 DOI: 10.1007/s11030-022-10430-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/31/2022] [Indexed: 02/08/2023]
Abstract
Recent studies have revealed that MERTK and BRAF V600E receptors have been found to be over-expressed in several types of cancers including melanoma, making these receptors targets for drug design. In this study, we have designed novel peptide conjugates with the natural products vanillic acid, thiazole-2-carboxylic acid, cinnamic acid, theanine, and protocatechuic acid. Each of these compounds was conjugated with the tumor targeting peptide sequence TAASGVRSMH, known to bind to NG2 and target tumor neovasculature. We examined their binding affinities and stability with MERTK and BRAF V600E receptors using molecular docking and molecular dynamics studies. Compared to the neat compounds, the peptide conjugates displayed higher binding affinity toward both receptors. In the case of MERTK, the most stable complexes were formed with di-theaninate-peptide, vanillate-peptide, and thiazole-2-amido peptide conjugates and binding occurred in the hinge region. Additionally, it was discovered that the peptide alone also had high binding ability and stability with the MERTK receptor. In the case of BRAF V600E, the peptide conjugates of protocatechuate, vanillate and thiazole-2-amido peptide conjugates showed the formation of the most stable complexes and binding occurred in the ATP binding cleft. Further analysis revealed that the number of hydrogen bonds and hydrophobic interactions played a critical role in enhanced stability of the complexes. Docking studies also revealed that binding affinities for NG2 were similar to MERTK and higher for BRAF V600E. MMGBSA studies of the trajectories revealed that the protocatechuate-peptide conjugate showed the highest binding energy with BRAF V600E while the peptide-TAASGVRSMH showed the highest binding energy with MERTK. ADME studies revealed that each of the compounds showed medium to high permeability toward MDCK cells and were not hERG blockers. Furthermore, the conjugates were not CYP inhibitors or substrates, but they were found to be Pgp substrates. Our results indicated that the protocatechuate-TAASGVRSMH, thiazole-2-amido-TAASGVRSMH, and vanillate-TAASGVRSMH conjugates may be furthered developed for in vitro and in vivo studies as novel tumor targeting compounds for tumor cells over-expressing BRAF V600E, while di-theaninate-amido-TAASGVRSMH and thiazole-2-amido-TAASGVRSMH conjugates may be developed for targeting MERTK receptors. These studies provide insight into the molecular interactions of natural product-peptide conjugates and their potential for binding to and targeting MERTK and BRAF V600E receptors in developing new therapeutics for targeting cancer.
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Affiliation(s)
- Dominic J Lambo
- Department of Chemistry, Fordham University, 441 E. Fordham Rd, Bronx, NY, 10458, USA
| | - Charlotta G Lebedenko
- Department of Chemistry, Fordham University, 441 E. Fordham Rd, Bronx, NY, 10458, USA
| | - Paige A McCallum
- Department of Chemistry, Fordham University, 441 E. Fordham Rd, Bronx, NY, 10458, USA
| | - Ipsita A Banerjee
- Department of Chemistry, Fordham University, 441 E. Fordham Rd, Bronx, NY, 10458, USA.
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Diversification of pharmaceutical molecules via late-stage C(sp2)–H functionalization. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2022.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Xu G, Liu Z, Wang X, Lu T, DesJarlais RL, Thieu T, Zhang J, Devine ZH, Du F, Li Q, Milligan CM, Shaffer P, Cedervall PE, Spurlino JC, Stratton CF, Pietrak B, Szewczuk LM, Wong V, Steele RA, Bruinzeel W, Chintala M, Silva J, Gaul MD, Macielag MJ, Nargund R. Discovery of Potent and Orally Bioavailable Pyridine N-Oxide-Based Factor XIa Inhibitors through Exploiting Nonclassical Interactions. J Med Chem 2022; 65:10419-10440. [PMID: 35862732 DOI: 10.1021/acs.jmedchem.2c00442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Activated factor XI (FXIa) inhibitors are promising novel anticoagulants with low bleeding risk compared with current anticoagulants. The discovery of potent FXIa inhibitors with good oral bioavailability has been challenging. Herein, we describe our discovery effort, utilizing nonclassical interactions to improve potency, cellular permeability, and oral bioavailability by enhancing the binding while reducing polar atoms. Beginning with literature-inspired pyridine N-oxide-based FXIa inhibitor 1, the imidazole linker was first replaced with a pyrazole moiety to establish a polar C-H···water hydrogen-bonding interaction. Then, structure-based drug design was employed to modify lead molecule 2d in the P1' and P2' regions, with substituents interacting with key residues through various nonclassical interactions. As a result, a potent FXIa inhibitor 3f (Ki = 0.17 nM) was discovered. This compound demonstrated oral bioavailability in preclinical species (rat 36.4%, dog 80.5%, and monkey 43.0%) and displayed a dose-dependent antithrombotic effect in a rabbit arteriovenous shunt model of thrombosis.
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Affiliation(s)
- Guozhang Xu
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Zhijie Liu
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Xinkang Wang
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Tianbao Lu
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Renee L DesJarlais
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Tho Thieu
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Jing Zhang
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Zheng Huang Devine
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Fuyong Du
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Qiu Li
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Cynthia M Milligan
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Paul Shaffer
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Peder E Cedervall
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - John C Spurlino
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Christopher F Stratton
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Beth Pietrak
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Lawrence M Szewczuk
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Victoria Wong
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Ruth A Steele
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Wouter Bruinzeel
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Madhu Chintala
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Jose Silva
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Michael D Gaul
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Mark J Macielag
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
| | - Ravi Nargund
- Janssen Research & Development, L.L.C., 1400 McKean Road, Spring House, Pennsylvania 19477-0776, United States
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6
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Liu M, Mao Z, Jiang Y, Zhang Z, Zhang X. Pd-catalyzed Site-selective direct arene C H arylation of Pyrrolo[2,3-d]pyrimidine derivatives with aryl iodides. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Moghadam ES, Mireskandari K, Abdel-Jalil R, Amini M. An approach to pharmacological targets of pyrrole family from a medicinal chemistry viewpoint. Mini Rev Med Chem 2022; 22:2486-2561. [PMID: 35339175 DOI: 10.2174/1389557522666220325150531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/12/2022] [Accepted: 01/30/2022] [Indexed: 11/22/2022]
Abstract
Pyrrole is one of the most widely used heterocycles in the pharmaceutical industry. Due to the importance of pyrrole structure in drug design and development, herein, we tried to conduct an extensive review of the bioactive pyrrole based compounds reported recently. The bioactivity of pyrrole derivatives varies, so in the review, we categorized them based on their direct pharmacologic targets. Therefore, readers are able to find the variety of biologic targets for pyrrole containing compounds easily. This review explains around seventy different biologic targets for pyrrole based derivatives, so, it is helpful for medicinal chemists in design and development novel bioactive compounds for different diseases. This review presents an extensive meaningful structure activity relationship for each reported structure as much as possible. The review focuses on papers published between 2018 and 2020.
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Affiliation(s)
- Ebrahim Saeedian Moghadam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran14176, Iran.
- The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.
- Department of Chemistry, College of Science, Sultan Qaboos University, Muscat, P.O. Box 36, P.C. 123, Sultanate of Oman
| | - Katayoon Mireskandari
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Raid Abdel-Jalil
- Department of Chemistry, College of Science, Sultan Qaboos University, Muscat, P.O. Box 36, P.C. 123, Sultanate of Oman
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran14176, Iran.
- The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
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Wang L, Zhou Y, Wu X, Ma X, Li B, Ding R, Stashko MA, Wu Z, Wang X, Li Z. The Synthesis and Initial Evaluation of MerTK Targeted PET Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27051460. [PMID: 35268561 PMCID: PMC8911752 DOI: 10.3390/molecules27051460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 11/16/2022]
Abstract
MerTK (Mer tyrosine kinase), a receptor tyrosine kinase, is ectopically or aberrantly expressed in numerous human hematologic and solid malignancies. Although a variety of MerTK targeting therapies are being developed to enhance outcomes for patients with various cancers, the sensitivity of tumors to MerTK suppression may not be uniform due to the heterogeneity of solid tumors and different tumor stages. In this report, we develop a series of radiolabeled agents as potential MerTK PET (positron emission tomography) agents. In our initial in vivo evaluation, [18F]-MerTK-6 showed prominent uptake rate (4.79 ± 0.24%ID/g) in B16F10 tumor-bearing mice. The tumor to muscle ratio reached 1.86 and 3.09 at 0.5 and 2 h post-injection, respectively. In summary, [18F]-MerTK-6 is a promising PET agent for MerTK imaging and is worth further evaluation in future studies.
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Affiliation(s)
- Li Wang
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA; (L.W.); (X.W.); (X.M.); (Z.L.)
| | - Yubai Zhou
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (Y.Z.); (B.L.); (R.D.); (M.A.S.)
| | - Xuedan Wu
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA; (L.W.); (X.W.); (X.M.); (Z.L.)
| | - Xinrui Ma
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA; (L.W.); (X.W.); (X.M.); (Z.L.)
| | - Bing Li
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (Y.Z.); (B.L.); (R.D.); (M.A.S.)
| | - Ransheng Ding
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (Y.Z.); (B.L.); (R.D.); (M.A.S.)
| | - Michael A. Stashko
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (Y.Z.); (B.L.); (R.D.); (M.A.S.)
| | - Zhanhong Wu
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA; (L.W.); (X.W.); (X.M.); (Z.L.)
- Correspondence: (Z.W.); (X.W.)
| | - Xiaodong Wang
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (Y.Z.); (B.L.); (R.D.); (M.A.S.)
- Correspondence: (Z.W.); (X.W.)
| | - Zibo Li
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA; (L.W.); (X.W.); (X.M.); (Z.L.)
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Barbaro L, Rodriguez AL, Blevins AN, Dickerson JW, Billard N, Boutaud O, Rook JL, Niswender CM, Conn P, Engers DW, Lindsley CW. Discovery of "Molecular Switches" within a Series of mGlu 5 Allosteric Ligands Driven by a "Magic Methyl" Effect Affording Both PAMs and NAMs with In Vivo Activity, Derived from an M 1 PAM Chemotype. ACS BIO & MED CHEM AU 2021; 1:21-30. [PMID: 37101980 PMCID: PMC10114714 DOI: 10.1021/acsbiomedchemau.1c00024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
In the course of optimizing an M1 PAM chemotype, introduction of an ether moiety unexpectedly abolished M1 PAM activity while engendering a "molecular switch" to afford a weak, pure mGlu5 PAM. Further optimization was able to deliver a potent (mGlu5 EC50 = 520 nM, 63% Glu Max), centrally penetrant (Kp = 0.83), MPEP-site binding mGlu5 PAM 17a (VU6036486) that reversed amphetamine-induced hyperlocomotion. A pronounced "magic methyl" effect was noted with a regioisomeric methyl congener, leading to a change in pharmacology to afford a potent (mGlu5 IC50 = 110 nM, 3% Glu Min), centrally penetrant (Kp = 0.94), MPEP-site binding NAM 28d (VU6044766) that displayed anxiolytic activity in a mouse marble burying assay. These data further support the growing body of literature concerning the existence of G protein-coupled receptor (GPCR) allosteric privileged structures, and the value and impact of subtle methyl group walks, as well as the highly productive fluorine walk, around allosteric ligand cores to stabilize unique GPCR conformations.
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Affiliation(s)
- Lisa Barbaro
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Alice L. Rodriguez
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Ashlyn N. Blevins
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Jonathan W. Dickerson
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Natasha Billard
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Olivier Boutaud
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Jerri L. Rook
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Colleen M. Niswender
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
- Vanderbilt
Kennedy Center, Vanderbilt University Medical
Center, Nashville, Tennessee 37232, United States
- Vanderbilt
Brain Institute, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - P.Jeffrey Conn
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
- Vanderbilt
Institute of Chemical Biology, Vanderbilt
University, Nashville, Tennessee 37232, United States
- Vanderbilt
Kennedy Center, Vanderbilt University Medical
Center, Nashville, Tennessee 37232, United States
| | - Darren W. Engers
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Craig W. Lindsley
- Warren
Center for Neuroscience Drug Discovery, Department of Pharmacology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
- Vanderbilt
Institute of Chemical Biology, Vanderbilt
University, Nashville, Tennessee 37232, United States
- Phone: 615-322-8700. Fax: 615-343-3088.
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Zheng H, Zhao J, Li B, Zhang W, Stashko MA, Minson KA, Huey MG, Zhou Y, Earp HS, Kireev D, Graham DK, DeRyckere D, Frye SV, Wang X. UNC5293, a potent, orally available and highly MERTK-selective inhibitor. Eur J Med Chem 2021; 220:113534. [PMID: 34038857 DOI: 10.1016/j.ejmech.2021.113534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/26/2022]
Abstract
Inhibition of MER receptor tyrosine kinase (MERTK) causes direct tumor cell killing and stimulation of the innate immune response. Therefore, MERTK has been identified as a therapeutic target in a wide variety of human tumors. Clinical trials targeting MERTK have recently been initiated, however, none of these drugs are MERTK-specific. Herein, we present the discovery of a highly MERTK-selective inhibitor UNC5293 (24). UNC5293 has subnanomolar activity against MERTK with an excellent Ambit selectivity score (S50 (100 nM) = 0.041). It mediated potent and selective inhibition of MERTK in cell-based assays. Furthermore, it has excellent mouse PK properties (7.8 h half-life and 58% oral bioavailability) and was active in bone marrow leukemia cells in a murine model.
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Affiliation(s)
- Hongchao Zheng
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jichen Zhao
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Bing Li
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Weihe Zhang
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Michael A Stashko
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Katherine A Minson
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Madeline G Huey
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Yubai Zhou
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Henry Shelton Earp
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Lineberger Comprehensive Cancer Center, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Dmitri Kireev
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Douglas K Graham
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Deborah DeRyckere
- Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta and Department of Pediatrics, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Stephen V Frye
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Lineberger Comprehensive Cancer Center, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Xiaodong Wang
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Lineberger Comprehensive Cancer Center, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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11
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David F, Davis AM, Gossing M, Hayes MA, Romero E, Scott LH, Wigglesworth MJ. A Perspective on Synthetic Biology in Drug Discovery and Development-Current Impact and Future Opportunities. SLAS DISCOVERY 2021; 26:581-603. [PMID: 33834873 DOI: 10.1177/24725552211000669] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The global impact of synthetic biology has been accelerating, because of the plummeting cost of DNA synthesis, advances in genetic engineering, growing understanding of genome organization, and explosion in data science. However, much of the discipline's application in the pharmaceutical industry remains enigmatic. In this review, we highlight recent examples of the impact of synthetic biology on target validation, assay development, hit finding, lead optimization, and chemical synthesis, through to the development of cellular therapeutics. We also highlight the availability of tools and technologies driving the discipline. Synthetic biology is certainly impacting all stages of drug discovery and development, and the recognition of the discipline's contribution can further enhance the opportunities for the drug discovery and development value chain.
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Affiliation(s)
- Florian David
- Department of Biology and Biological Engineering, Division of Systems and Synthetic Biology, Chalmers University of Technology, Gothenburg, Sweden
| | - Andrew M Davis
- Discovery Sciences, Biopharmaceutical R&D, AstraZeneca, Cambridge, UK
| | - Michael Gossing
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Martin A Hayes
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Elvira Romero
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Louis H Scott
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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12
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Yan X, Wen J, Zhou L, Fan L, Wang X, Xu Z. Current Scenario of 1,3-oxazole Derivatives for Anticancer Activity. Curr Top Med Chem 2020; 20:1916-1937. [PMID: 32579505 DOI: 10.2174/1568026620666200624161151] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/06/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023]
Abstract
Cancer, which has been cursed for human beings for long time is considered as one of the
leading causes of morbidity and mortality across the world. In spite of different types of treatments
available, chemotherapy is still deemed as a favored treatment for the cancer. Unfortunately, many currently
accessible anticancer agents have developed multidrug resistance along with fatal adverse effects.
Therefore, intensive efforts have been made to seek for new active drugs with improved anticancer efficacy
and reduced adverse effects. In recent years, the emergence of heterocyclic ring-containing anticancer
agents has gained a great deal of attention among medicinal chemists. 1,3- oxazole is a versatile
heterocyclic compound, and its derivatives possess broad-spectrum pharmacological properties, including
anticancer activity against both drug-susceptible, drug-resistant and even multidrug-resistant cancer
cell lines through multiple mechanisms. Thus, the 1,3-oxazole moiety is a useful template for the development
of novel anticancer agents. This review will provide a comprehensive overview of the recent
advances on 1,3-oxazole derivatives with potential therapeutic applications as anticancer agents, focus
on the chemical structures, anticancer activity, and mechanisms of action.
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Affiliation(s)
- Xinjia Yan
- Department of Pharmacy, The 967th Hospital of Joint Logistic Support Force of PLA, Dalian, China
| | - Jing Wen
- College of Pharmacy, Harbin University of Commerce, Harbin, China
| | - Lin Zhou
- Department of Pharmacy, The 967th Hospital of Joint Logistic Support Force of PLA, Dalian, China
| | - Lei Fan
- Department of Pharmacy, The 967th Hospital of Joint Logistic Support Force of PLA, Dalian, China
| | - Xiaobo Wang
- Department of Pharmacy, The 967th Hospital of Joint Logistic Support Force of PLA, Dalian, China
| | - Zhi Xu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
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13
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Huelse J, Fridlyand D, Earp S, DeRyckere D, Graham DK. MERTK in cancer therapy: Targeting the receptor tyrosine kinase in tumor cells and the immune system. Pharmacol Ther 2020; 213:107577. [PMID: 32417270 PMCID: PMC9847360 DOI: 10.1016/j.pharmthera.2020.107577] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The receptor tyrosine kinase MERTK is aberrantly expressed in numerous human malignancies, and is a novel target in cancer therapeutics. Physiologic roles of MERTK include regulation of tissue homeostasis and repair, innate immune control, and platelet aggregation. However, aberrant expression in a wide range of liquid and solid malignancies promotes neoplasia via growth factor independence, cell cycle progression, proliferation and tumor growth, resistance to apoptosis, and promotion of tumor metastases. Additionally, MERTK signaling contributes to an immunosuppressive tumor microenvironment via induction of an anti-inflammatory cytokine profile and regulation of the PD-1 axis, as well as regulation of macrophage, myeloid-derived suppressor cell, natural killer cell and T cell functions. Various MERTK-directed therapies are in preclinical development, and clinical trials are underway. In this review we discuss MERTK inhibition as an emerging strategy for cancer therapy, focusing on MERTK expression and function in neoplasia and its role in mediating resistance to cytotoxic and targeted therapies as well as in suppressing anti-tumor immunity. Additionally, we review preclinical and clinical pharmacological strategies to target MERTK.
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Affiliation(s)
- Justus Huelse
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Diana Fridlyand
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Shelton Earp
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC
| | - Deborah DeRyckere
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Douglas K. Graham
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Department of Pediatrics, Emory University, Atlanta, Georgia
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14
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McKean IJW, Hoskisson PA, Burley GA. Biocatalytic Alkylation Cascades: Recent Advances and Future Opportunities for Late‐Stage Functionalization. Chembiochem 2020; 21:2890-2897. [DOI: 10.1002/cbic.202000187] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/22/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Iain J. W. McKean
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street Glasgow G1 1XL United Kingdom
| | - Paul A. Hoskisson
- Strathclyde Institute of Pharmacy & Biomedical Sciences University of Strathclyde 161 Cathedral Street Glasgow G4 0RE United Kingdom
| | - Glenn A. Burley
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street Glasgow G1 1XL United Kingdom
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15
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Zhou J, Mao Z, Pan H, Zhang X. Pd-Catalyzed highly selective and direct ortho C–H arylation of pyrrolo[2,3-d]pyrimidine derivatives. Org Chem Front 2020. [DOI: 10.1039/c9qo01312a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pd-Catalyzed one-pot direct ortho C–H arylation of pyrrolo[2,3-d]pyrimidine derivatives is reported. This protocol provides a variety of biphenyl-containing pyrrolo[2,3-d]pyrimidines in good to excellent yields.
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Affiliation(s)
- Jing Zhou
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Zhengtong Mao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Haokun Pan
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xingxian Zhang
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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16
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Mao Z, Liu M, Zhu G, Zhou J, Zhang X. Transition-metal-free highly regioselective C–H acetoxylation of pyrrolo[2,3-d]pyrimidine derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo00702a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Transition-metal-free catalyzed direct C(sp2)–H acetoxylation of pyrrolo[2,3-d]pyrimidine derivatives is reported. This protocol provides a variety of acetoxylated pyrrolo[2,3-d]pyrimidines in good to excellent yields.
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Affiliation(s)
- Zhengtong Mao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Min Liu
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Gaoyang Zhu
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Jing Zhou
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xingxian Zhang
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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17
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Moir M, Danon JJ, Reekie TA, Kassiou M. An overview of late-stage functionalization in today’s drug discovery. Expert Opin Drug Discov 2019; 14:1137-1149. [DOI: 10.1080/17460441.2019.1653850] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Michael Moir
- School of Chemistry, The University of Sydney, Sydney, Australia
| | | | - Tristan A. Reekie
- Research School of Chemistry, The Australian National University, Canberra, Australia
| | - Michael Kassiou
- School of Chemistry, The University of Sydney, Sydney, Australia
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18
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Abstract
IMPACT STATEMENT Cancer is among the leading causes of death worldwide. In 2016, 8.9 million people are estimated to have died from various forms of cancer. The current treatments, including surgery with chemotherapy and/or radiation therapy, are not effective enough to provide full protection from cancer, which highlights the need for developing novel therapy strategies. In this review, we summarize the molecular biology of a unique member of a subfamily of receptor tyrosine kinase, TYRO3 and discuss the new insights in TYRO3-targeted treatment for cancer therapy.
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Affiliation(s)
- Pei-Ling Hsu
- 1 Department of Physiology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Jonathan Jou
- 2 College of Medicine, University of Illinois, IL 60612, USA
| | - Shaw-Jenq Tsai
- 1 Department of Physiology, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
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19
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Smart SK, Vasileiadi E, Wang X, DeRyckere D, Graham DK. The Emerging Role of TYRO3 as a Therapeutic Target in Cancer. Cancers (Basel) 2018; 10:cancers10120474. [PMID: 30501104 PMCID: PMC6316664 DOI: 10.3390/cancers10120474] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/21/2018] [Accepted: 11/24/2018] [Indexed: 12/12/2022] Open
Abstract
The TAM family (TYRO3, AXL, MERTK) tyrosine kinases play roles in diverse biological processes including immune regulation, clearance of apoptotic cells, platelet aggregation, and cell proliferation, survival, and migration. While AXL and MERTK have been extensively studied, less is known about TYRO3. Recent studies revealed roles for TYRO3 in cancer and suggest TYRO3 as a therapeutic target in this context. TYRO3 is overexpressed in many types of cancer and functions to promote tumor cell survival and/or proliferation, metastasis, and resistance to chemotherapy. In addition, higher levels of TYRO3 expression have been associated with decreased overall survival in patients with colorectal, hepatocellular, and breast cancers. Here we review the physiological roles for TYRO3 and its expression and functions in cancer cells and the tumor microenvironment, with emphasis on the signaling pathways that are regulated downstream of TYRO3 and emerging roles for TYRO3 in the immune system. Translational agents that target TYRO3 are also described.
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Affiliation(s)
- Sherri K Smart
- Department of Pediatrics, Emory University, Atlanta, GA 30322, USA.
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA.
| | - Eleana Vasileiadi
- Department of Pediatrics, Emory University, Atlanta, GA 30322, USA.
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA.
| | - Xiaodong Wang
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.
| | - Deborah DeRyckere
- Department of Pediatrics, Emory University, Atlanta, GA 30322, USA.
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA.
| | - Douglas K Graham
- Department of Pediatrics, Emory University, Atlanta, GA 30322, USA.
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA 30322, USA.
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