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Zhou Y, Gong C, Sun Z, Zeng W, Meng K, An Y, Hu Y, Xue W. Novel Flavonol Derivatives Containing 1,3,4-Thiadiazole as Potential Antifungal Agents: Design, Synthesis, and Biological Evaluation. ACS OMEGA 2024; 9:17297-17306. [PMID: 38645355 PMCID: PMC11024969 DOI: 10.1021/acsomega.3c10294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/14/2024] [Accepted: 03/22/2024] [Indexed: 04/23/2024]
Abstract
In order to discover novel compounds with excellent agricultural activities, novel flavonol derivatives containing 1,3,4-thiadiazole were synthesized and evaluated for their antifungal activities. The bioassay results showed that some of the target compounds had good antifungal activities against Botrytis cinerea, Phomopsis sp. and Sclerotinia sclerotiorum in vitro. It is worth noting that the half-effective concentration (EC50) value of Y18 against B. cinerea was 2.4 μg/mL, which was obviously superior to that of azoxystrobin (21.7 μg/mL). The curative activity of Y18 at 200 μg/mL (79.9%) was better than that of azoxystrobin (59.1%), and its protective activity (90.9%) was better than that of azoxystrobin (83.9%). Morphological studies by using scanning electron microscopy and fluorescence microscopy revealed that Y18 could affect the normal growth of B. cinerea mycelium. In addition, the mechanism of action studies indicated that Y18 could affect the integrity of cell membranes by inducing the production of endogenous reactive oxygen species and the release of the malondialdehyde content, leading to membrane lipid peroxidation and the release of cell contents. The inhibitory activity of flavonol derivatives containing 1,3,4-thiadiazole on plant fungi is notable, offering significant potential for the development of new antifungal agents.
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Affiliation(s)
- Yuanxiang Zhou
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Chenyu Gong
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhiling Sun
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wei Zeng
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Kaini Meng
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Youshan An
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yuzhi Hu
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wei Xue
- National Key Laboratory of Green Pesticide,
Key Laboratory of Green Pesticide and Agricultural Bioengineering,
Ministry of Education, Center for R&D
of Fine Chemicals of Guizhou University, Guiyang 550025, China
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2
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Fang W, Wang J, Ma X, Shao N, Ye K, Zhang D, Shi C, Luo L. A Progressively Disassembled DNA Repair Inhibitors Nanosystem for the Treatment of BRCA Wild-Type Triple-Negative Breast Cancer. Int J Nanomedicine 2023; 18:6001-6019. [PMID: 37901361 PMCID: PMC10612513 DOI: 10.2147/ijn.s426639] [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: 07/10/2023] [Accepted: 10/05/2023] [Indexed: 10/31/2023] Open
Abstract
Background Olaparib, a poly (adenosine diphosphate-ribose) polymerase (PARP) inhibitor has demonstrated promising efficacy in patients with triple-negative breast cancer (TNBC) carrying breast cancer gene (BRCA) mutations. However, its impact on BRCA wild-type (BRCAwt) TNBC is limited. Hence, it is crucial to sensitize BRCAwt TNBC cells to olaparib for effective clinical practice. Novobiocin, a DNA polymerase theta (POLθ) inhibitor, exhibits sensitivity towards BRCA-mutated cancer cells that have acquired resistance to PARP inhibitors. Although both of these DNA repair inhibitors demonstrate therapeutic efficacy in BRCA-mutated cancers, their nanomedicine formulations' antitumor effects on wild-type cancer remain unclear. Furthermore, ensuring effective drug accumulation and release at the cancer site is essential for the clinical application of olaparib. Materials and Methods Herein, we designed a progressively disassembled nanosystem of DNA repair inhibitors as a novel strategy to enhance the effectiveness of olaparib in BRCAwt TNBC. The nanosystem enabled synergistic delivery of two DNA repair inhibitors olaparib and novobiocin, within an ultrathin silica framework interconnected by disulfide bonds. Results The designed nanosystem demonstrated remarkable capabilities, including long-term molecular storage and specific drug release triggered by the tumor microenvironment. Furthermore, the nanosystem exhibited potent inhibitory effects on cell viability, enhanced accumulation of DNA damage, and promotion of apoptosis in BRCAwt TNBC cells. Additionally, the nanosystem effectively accumulated within BRCAwt TNBC, leading to significant growth inhibition and displaying vascular regulatory abilities as assessed by magnetic resonance imaging (MRI). Conclusion Our results provided the inaugural evidence showcasing the potential of a progressively disassembled nanosystem of DNA repair inhibitors, as a promising strategy for the treatment of BRCA wild-type triple-negative breast cancer.
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Affiliation(s)
- Weimin Fang
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Jinghao Wang
- Department of Pharmacy, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Xiaocong Ma
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Ni Shao
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Kunlin Ye
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Dong Zhang
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Changzheng Shi
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Liangping Luo
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, People’s Republic of China
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, Jinan University, Guangzhou, Guangdong, People’s Republic of China
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3
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Kaur S, Zhang X, Patel S, Rodriguez YA, Luther KJ, Alghafli G, Lang RM, Abrams CK, Dobrowsky RT. Pharmacologic Targeting of the C-Terminus of Heat Shock Protein 90 Improves Neuromuscular Function in Animal Models of Charcot Marie Tooth X1 Disease. ACS Pharmacol Transl Sci 2023; 6:306-319. [PMID: 36798471 PMCID: PMC9926526 DOI: 10.1021/acsptsci.2c00223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Indexed: 01/22/2023]
Abstract
Charcot-Marie-Tooth X1 (CMTX1) disease is an inherited peripheral neuropathy that arises from loss-of-function mutations in the protein connexin 32 (Cx32). CMTX1 currently lacks a pharmacologic approach toward disease management, and we have previously shown that modulating the expression of molecular chaperones using novologue therapy may provide a viable disease-modifying approach to treat metabolic and demyelinating neuropathies. Cemdomespib is an orally bioavailable novologue that manifests neuroprotective activity by modulating the expression of heat shock protein 70 (Hsp70). We examined if 1 to 5 months of daily cemdomespib therapy may improve neuropathic symptoms in three mouse models of CMTX1 (Cx32 deficient (Cx32def), T55I-Cx32def, and R75W-Cx32 mice). Daily drug therapy significantly improved motor nerve conduction velocity (MNCV) and grip strength in all three models, but the compound muscle action potential was only improved in Cx32def mice. Drug efficacy required Hsp70 as improvements in MNCV, and the grip strength was abrogated in Cx32def × Hsp70 knockout mice. Five months of novologue therapy was associated with improved neuromuscular junction morphology, femoral motor nerve myelination, reduction in foamy macrophages, and a decrease in Schwann cell c-jun levels. To determine if c-jun may be downstream of Hsp70 and necessary for drug efficacy, c-jun expression was specifically deleted in Schwann cells of Cx32def mice. While the deletion of c-jun worsened the neuropathy, cemdomespib therapy remained effective in improving MNCV and grip strength. Our data show that cemdomespib therapy improves CMTX1-linked neuropathy in an Hsp70-dependent but a c-jun-independent manner and without regard to the nature of the underlying Cx32 mutation.
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Affiliation(s)
- Sukhmanjit Kaur
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Xinyue Zhang
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Sugandha Patel
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Yssa A. Rodriguez
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Kylie J. Luther
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Ghufran Alghafli
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Ryan M. Lang
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
| | - Charles K. Abrams
- Department
of Neurology and Rehabilitation and Biomedical Engineering, College
of Medicine, University of Illinois Chicago, Chicago, Illinois 60612, United States
| | - Rick T. Dobrowsky
- Department
of Pharmacology and Toxicology, University
of Kansas, Lawrence, Kansas 66045, United States
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4
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Amatya E, Blagg BSJ. Recent advances toward the development of Hsp90 C-terminal inhibitors. Bioorg Med Chem Lett 2023; 80:129111. [PMID: 36549397 PMCID: PMC9869726 DOI: 10.1016/j.bmcl.2022.129111] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
Heat shock protein 90 (Hsp90) is a dynamic protein which serves to ensure proper folding of nascent client proteins, regulate transcriptional responses to environmental stress and guide misfolded and damaged proteins to destruction via ubiquitin proteasome pathway. Recent advances in the field of Hsp90 have been made through development of isoform selective inhibitors, Hsp90 C-terminal inhibitors and disruption of protein-protein interactions. These approaches have led to alleviation of adverse off-target effects caused by pan-inhibition of Hsp90 using N-terminal inhibitors. In this review, we provide an overview of relevant advances on targeting the Hsp90 C-terminal Domain (CTD) and the development of Hsp90 C-terminal inhibitors (CTIs) since 2015.
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Affiliation(s)
- Eva Amatya
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA; Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN 46556, USA.
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5
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Chen Y, Dahse H, Paetz C, Schneider B. Precursor-Directed Synthesis of Apoptosis-Initiating N-Hydroxyalkyl Phenylbenzoisoquinolindione Alkaloids. Chemistry 2022; 11:e202200157. [PMID: 36478420 PMCID: PMC9728486 DOI: 10.1002/open.202200157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/04/2022] [Indexed: 12/12/2022]
Abstract
A precursor-directed approach to access N-hydroxyalkyl phenylbenzoisoquinolindiones (PBIQs) has been developed. Incubation of plant material of Xiphidium caeruleum with hydroxylamines of various chain lengths (C2 , C4 , C6 , C8 , C10 and C12 ) resulted in 11 new 5-hydroxy- and 5-methoxy PBIQs with different N-hydroxyalkyl side chain lengths. The antiproliferative effect and the cytotoxicity against HUVEC, K-562, and HeLa cell lines of 26 previously reported PBIQs and the 11 newly synthesized N-hydroxyalkyl PBIQs was determined for the first time. The results revealed that introducing long-chain N-aliphatic amine moieties improved the antiproliferative effect and cytotoxicity of PBIQs when compared to derivatives with N-amino acids as side chains.
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Affiliation(s)
- Yu Chen
- Max-Planck-Institute for Chemical EcologyNMR/Biosynthesis GroupHans-Knöll-Straße 807745JenaGermany,Institute of BotanyJiangsu Province and Chinese Academy of SciencesNo.1 Qianhu Houcun Xuanwu District210014NanjingP. R. China
| | - Hans‐Martin Dahse
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute (Leibniz-HKI)Beutenbergstraße 11a07745JenaGermany
| | - Christian Paetz
- Max-Planck-Institute for Chemical EcologyNMR/Biosynthesis GroupHans-Knöll-Straße 807745JenaGermany
| | - Bernd Schneider
- Max-Planck-Institute for Chemical EcologyNMR/Biosynthesis GroupHans-Knöll-Straße 807745JenaGermany
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6
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Meka PN, Amatya E, Kaur S, Banerjee M, Zuo A, Dobrowsky RT, Blagg BSJ. Synthesis and evaluation of 3'- and 4'-substituted cyclohexyl noviomimetics that modulate mitochondrial respiration. Bioorg Med Chem 2022; 70:116940. [PMID: 35905686 DOI: 10.1016/j.bmc.2022.116940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/25/2022]
Abstract
KU-32 (2) and KU-596 (3), are first and second generation cytoprotective novologues that are derivatives of novobiocin (1), a heat shock protein 90 (Hsp90) C-terminal inhibitor. Although 2 and 3 improve mitochondrial bioenergetics and have demonstrated considerable cytoprotective activity, they contain a synthetically demanding noviose sugar. This issue was initially addressed by creating noviomimetics, such as KU-1202 (4), which replaced the noviose sugar with ether-linked cyclohexyl derivatives that retained some cytoprotective potential due to their ability to increase mitochondrial bioenergetics. Based on structure-activity relationship (SAR) studies of KU-1202 (4), the current study investigated 3'- and 4'-substituted cyclohexyl scaffolds as noviomimetics and determined their efficacy at increasing mitochondrial bioenergetic as a marker for cytoprotective potential.
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Affiliation(s)
- Penchala Narasimharao Meka
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States
| | - Eva Amatya
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States
| | - Sukhmanjit Kaur
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Monimoy Banerjee
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States
| | - Ang Zuo
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States
| | - Rick T Dobrowsky
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States.
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States.
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7
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Llanos MA, Enrique N, Sbaraglini ML, Garofalo FM, Talevi A, Gavernet L, Martín P. Structure-Based Virtual Screening Identifies Novobiocin, Montelukast, and Cinnarizine as TRPV1 Modulators with Anticonvulsant Activity In Vivo. J Chem Inf Model 2022; 62:3008-3022. [PMID: 35696534 DOI: 10.1021/acs.jcim.2c00312] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The transient receptor potential vanilloid 1 (TRPV1) receptor is a nonselective cation channel, known to be involved in the regulation of many important physiological and pathological processes. In the last few years, it has been proposed as a promising target to develop novel anticonvulsant compounds. However, thermoregulatory effects associated with the channel inhibition have hampered the path for TRPV1 antagonists to become marketed drugs. In this regard, we conducted a structure-based virtual screening campaign to find potential TRPV1 modulators among approved drugs, which are known to be safe and thermally neutral. To this end, different docking models were developed and validated by assessing their pose and score prediction powers. Novobiocin, montelukast, and cinnarizine were selected from the screening as promising candidates for experimental testing and all of them exhibited nanomolar inhibitory activity. Moreover, the in vivo profiles showed promising results in at least one of the three models of seizures tested.
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Affiliation(s)
- Manuel A Llanos
- Departamento de Ciencias Biológicas and Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), UNLP, Facultad de Ciencias Exactas, La Plata Buenos Aires (B1900ADU), Argentina
| | - Nicolás Enrique
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP, CONICET─Universidad Nacional de la Plata), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata Buenos Aires (B1900BJW), Argentina
| | - María L Sbaraglini
- Departamento de Ciencias Biológicas and Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), UNLP, Facultad de Ciencias Exactas, La Plata Buenos Aires (B1900ADU), Argentina
| | - Federico M Garofalo
- Departamento de Ciencias Biológicas and Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), UNLP, Facultad de Ciencias Exactas, La Plata Buenos Aires (B1900ADU), Argentina
| | - Alan Talevi
- Departamento de Ciencias Biológicas and Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), UNLP, Facultad de Ciencias Exactas, La Plata Buenos Aires (B1900ADU), Argentina
| | - Luciana Gavernet
- Departamento de Ciencias Biológicas and Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), UNLP, Facultad de Ciencias Exactas, La Plata Buenos Aires (B1900ADU), Argentina
| | - Pedro Martín
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP, CONICET─Universidad Nacional de la Plata), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata Buenos Aires (B1900BJW), Argentina
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8
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Keegan BM, Catalfano KC, Banerjee M, Blagg BSJ. Synthesis and Evaluation of Small Molecule Disruptors of the Aha1/Hsp90 Complex for the Reduction of Tau Aggregation. ACS Med Chem Lett 2022; 13:827-832. [PMID: 35586436 PMCID: PMC9109267 DOI: 10.1021/acsmedchemlett.2c00064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/11/2022] [Indexed: 11/28/2022] Open
Abstract
KU-177 was recently shown to disrupt interactions between Hsp90 and Aha1 in vitro. Subsequent studies in recombinant thioflavin T (ThT) assays demonstrated that KU-177 ablates Aha1-driven enhancement of Hsp90-dependent tau aggregation, which was confirmed by TEM. Using KU-177 as a lead compound, derivatives of KU-177 were synthesized and evaluated for their ability to disrupt Aha1/Hsp90 interactions and inhibit P301L tau aggregation. Preliminary structure-activity relationships were revealed, which led to the identification of a new lead compound that contains a cis-like amide bond. The new lead compounds retain the ability to disrupt Aha1/Hsp90 interactions in SH-SY5Y and SK-BR-3 cells without direct inhibition of Hsp90, providing a new scaffold for subsequent drug discovery efforts.
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Affiliation(s)
- Bradley M. Keegan
- Warren Center for Drug Discovery, Department
of Chemistry and Biochemistry, University
of Notre Dame, 310 McCourtney Hall, Notre Dame, Indiana 46556, United
States
| | - Kevin C. Catalfano
- Warren Center for Drug Discovery, Department
of Chemistry and Biochemistry, University
of Notre Dame, 310 McCourtney Hall, Notre Dame, Indiana 46556, United
States
| | - Monimoy Banerjee
- Warren Center for Drug Discovery, Department
of Chemistry and Biochemistry, University
of Notre Dame, 310 McCourtney Hall, Notre Dame, Indiana 46556, United
States
| | - Brian S. J. Blagg
- Warren Center for Drug Discovery, Department
of Chemistry and Biochemistry, University
of Notre Dame, 310 McCourtney Hall, Notre Dame, Indiana 46556, United
States
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9
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Wang X, Duan W, Lin G, Li B, Zhang W, Lei F. Synthesis, Antifungal Activity, Three-Dimensional Quantitative Structure-Activity Relationship and Molecular Docking Study of 4-Acyl-3-amino-1,2,4-triazole-thioether Derivatives Containing Natural Pinene Structure. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202108031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Wu Z, Shi J, Chen J, Hu D, Song B. Design, Synthesis, Antibacterial Activity, and Mechanisms of Novel 1,3,4-Thiadiazole Derivatives Containing an Amide Moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8660-8670. [PMID: 34319116 DOI: 10.1021/acs.jafc.1c01626] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To discover novel antibacterial agents, a series of novel 1,3,4-thiadiazole derivatives containing an amide moiety were designed and synthesized, and their antibacterial activities were tested. Compound 30 was designed and synthesized according to the CoMFA model. Compound 30 exhibited higher antibacterial activities against Xanthomonas oryzae pv. oryzicola and Xanthomonas oryzae pv. oryzae, with EC50 values of 2.1 and 1.8 mg/L, respectively, which were superior to those of thiodiazole copper (99.6 and 92.5 mg/L). The protective and curative activities of compound 30 against rice bacterial leaf blight were 51.3 and 46.1%, respectively, which were better than those of thiodiazole copper (37.8 and 38.5%). The protective and curative activities of compound 30 against rice bacterial leaf streak were 45.9 and 40.5%, respectively, which were better than those of thiodiazole copper (36.2 and 31.1%). In addition, the protective activity of compound 30 against rice bacterial leaf streak was related to increased activities of related defense enzymes and upregulated the differentially expressed proteins of the glycolysis/gluconeogenesis pathway.
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Affiliation(s)
- Zhibing Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
| | - Jin Shi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
| | - Jixiang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China
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11
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Bickel D, Gohlke H. C-terminal modulators of heat shock protein of 90 kDa (HSP90): State of development and modes of action. Bioorg Med Chem 2019; 27:115080. [DOI: 10.1016/j.bmc.2019.115080] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/29/2019] [Accepted: 08/25/2019] [Indexed: 12/22/2022]
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12
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Gestwicki JE, Shao H. Inhibitors and chemical probes for molecular chaperone networks. J Biol Chem 2018; 294:2151-2161. [PMID: 30213856 DOI: 10.1074/jbc.tm118.002813] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The molecular chaperones are central mediators of protein homeostasis. In that role, they engage in widespread protein-protein interactions (PPIs) with each other and with their "client" proteins. Together, these PPIs form the backbone of a network that ensures proper vigilance over the processes of protein folding, trafficking, quality control, and degradation. The core chaperones, such as the heat shock proteins Hsp60, Hsp70, and Hsp90, are widely expressed in most tissues, yet there is growing evidence that the PPIs among them may be re-wired in disease conditions. This possibility suggests that these PPIs, and perhaps not the individual chaperones themselves, could be compelling drug targets. Indeed, recent efforts have yielded small molecules that inhibit (or promote) a subset of inter-chaperone PPIs. These chemical probes are being used to study chaperone networks in a range of models, and the successes with these approaches have inspired a community-wide objective to produce inhibitors for a broader set of targets. In this Review, we discuss progress toward that goal and point out some of the challenges ahead.
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Affiliation(s)
- Jason E Gestwicki
- From the Department of Pharmaceutical Chemistry and the Institute for Neurodegenerative Disease, University of California San Francisco, San Francisco, California 94158
| | - Hao Shao
- From the Department of Pharmaceutical Chemistry and the Institute for Neurodegenerative Disease, University of California San Francisco, San Francisco, California 94158
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13
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Kumar Mv V, Ebna Noor R, Davis RE, Zhang Z, Sipavicius E, Keramisanou D, Blagg BSJ, Gelis I. Molecular insights into the interaction of Hsp90 with allosteric inhibitors targeting the C-terminal domain. MEDCHEMCOMM 2018; 9:1323-1331. [PMID: 30151087 PMCID: PMC6097425 DOI: 10.1039/c8md00151k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 06/29/2018] [Indexed: 12/13/2022]
Abstract
Unique to targeting the C-terminal domain of Hsp90 (C-Hsp90) is the ability to uncouple the cytotoxic and cytoprotective outcomes of Hsp90 modulation. After the identification of novobiocin as a C-Hsp90 interacting ligand a diverse gamut of novologues emerged, from which KU-32 and KU-596 exhibited strong neuroprotective activity. However, further development of these ligands is hampered by the difficulty to obtain structural information on their complexes with Hsp90. Using saturation transfer difference (STD) NMR spectroscopy, we found that the primary binding epitopes of KU-32 and KU596 map at the ring systems of the ligands and specifically the coumarin and biphenyl structures, respectively. Based on both relative and absolute STD effects, we identified KU-596 sites that can be explored to design novel third-generation novologues. In addition, chemical shift perturbations obtained by methyl-TROSY reveal that novologues bind at the cryptic, C-Hsp90 ATP-binding pocket and produce global, long-range structural rearrangements to dimeric Hsp90.
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Affiliation(s)
- Vasantha Kumar Mv
- Department of Chemistry , University of South Florida , Tampa , FL 33620 , USA .
| | - Radwan Ebna Noor
- Department of Chemistry , University of South Florida , Tampa , FL 33620 , USA .
| | - Rachel E Davis
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46545 , USA
| | - Zheng Zhang
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46545 , USA
| | - Edvinas Sipavicius
- Department of Chemistry , University of South Florida , Tampa , FL 33620 , USA .
| | - Dimitra Keramisanou
- Department of Chemistry , University of South Florida , Tampa , FL 33620 , USA .
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46545 , USA
| | - Ioannis Gelis
- Department of Chemistry , University of South Florida , Tampa , FL 33620 , USA .
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14
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Neckers L, Blagg B, Haystead T, Trepel JB, Whitesell L, Picard D. Methods to validate Hsp90 inhibitor specificity, to identify off-target effects, and to rethink approaches for further clinical development. Cell Stress Chaperones 2018; 23:467-482. [PMID: 29392504 PMCID: PMC6045531 DOI: 10.1007/s12192-018-0877-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/16/2018] [Accepted: 01/17/2018] [Indexed: 12/12/2022] Open
Abstract
The molecular chaperone Hsp90 is one component of a highly complex and interactive cellular proteostasis network (PN) that participates in protein folding, directs misfolded and damaged proteins for destruction, and participates in regulating cellular transcriptional responses to environmental stress, thus promoting cell and organismal survival. Over the last 20 years, it has become clear that various disease states, including cancer, neurodegeneration, metabolic disorders, and infection by diverse microbes, impact the PN. Among PN components, Hsp90 was among the first to be pharmacologically targeted with small molecules. While the number of Hsp90 inhibitors described in the literature has dramatically increased since the first such small molecule was described in 1994, it has become increasingly apparent that not all of these agents have been sufficiently validated for specificity, mechanism of action, and lack of off-target effects. Given the less than expected activity of Hsp90 inhibitors in cancer-related human clinical trials, a re-evaluation of potentially confounding off-target effects, as well as confidence in target specificity and mechanism of action, is warranted. In this commentary, we provide feasible approaches to achieve these goals and we discuss additional considerations to improve the clinical efficacy of Hsp90 inhibitors in treating cancer and other diseases.
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Affiliation(s)
- Len Neckers
- Urologic Oncology Branch, National Cancer Institute, Bethesda, MD, 20892, USA.
| | - Brian Blagg
- Warren Family Research Center for Drug Discovery and Development, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Timothy Haystead
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, 27710, USA
| | - Jane B Trepel
- Developmental Therapeutics Branch, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Luke Whitesell
- Whitehead Institute, Cambridge, MA, 02142, USA
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5G 1M1, Canada
| | - Didier Picard
- Département de Biologie Cellulaire, Université de Genève, 1211, Geneva 4, Switzerland.
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15
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Discovery of novel HSP90 inhibitors that induced apoptosis and impaired autophagic flux in A549 lung cancer cells. Eur J Med Chem 2018; 145:551-558. [DOI: 10.1016/j.ejmech.2018.01.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/07/2018] [Accepted: 01/08/2018] [Indexed: 12/29/2022]
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16
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Forsberg LK, Anyika M, You Z, Emery S, McMullen M, Dobrowsky RT, Blagg BSJ. Development of noviomimetics that modulate molecular chaperones and manifest neuroprotective effects. Eur J Med Chem 2018; 143:1428-1435. [PMID: 29137866 PMCID: PMC5736410 DOI: 10.1016/j.ejmech.2017.10.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/09/2017] [Accepted: 10/14/2017] [Indexed: 11/30/2022]
Abstract
Heat shock protein 90 (Hsp90) is a chaperone under investigation for the treatment of cancer and neurodegenerative diseases. Neuroprotective Hsp90 C-terminal inhibitors derived from novobiocin (novologues) include KU-32 and KU-596. These novologues modulate molecular chaperones and result in an induction of Heat Shock Protein 70 (Hsp70). "Noviomimetics" replace the synthetically complex noviose sugar with a simple cyclohexyl moiety to maintain biological efficacy as compared to novologues KU-596 and KU-32. In this study, we further explore the development of noviomimetics and evaluate their efficacy using a luciferase refolding assay, immunoblot analysis, a c-jun assay, and an assay measuring mitochondrial bioenergetics. These new noviomimetics were designed and synthesized and found to induce Hsp70 and improve biological activity. Noviomimetics 39e and 40a were found to induce Hsp70 and exhibit promising effects in cellular assays.
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Affiliation(s)
- Leah K Forsberg
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, United States
| | - Mercy Anyika
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, United States
| | - Zhenyuan You
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Sean Emery
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Mason McMullen
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Rick T Dobrowsky
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States.
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17
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Shao LD, Su J, Ye B, Liu JX, Zuo ZL, Li Y, Wang YY, Xia C, Zhao QS. Design, Synthesis, and Biological Activities of Vibsanin B Derivatives: A New Class of HSP90 C-Terminal Inhibitors. J Med Chem 2017; 60:9053-9066. [PMID: 29019670 DOI: 10.1021/acs.jmedchem.7b01395] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Previously, vibsanin B (ViB) was found to preferentially target HSP90β compared to HSP90α. In this study, multiple experiments, including pull-down assays of biotin-ViB with recombinant HSP90β-NTD, MD, CTD, and full-length HSP90β, molecular docking of ViB and its derivatives to the HSP90 CTD, and a inhibition assay of interaction of the HSP90β CTD with GST-tagged cyclophilin 40 (Cyp40) by ViB derivatives, suggest that ViB can directly bind to the HSP90 C-terminus. On the basis of the docking predictions and primary structure-activity relationships (SARs), a series of ViB analogues devised with focus on the C18 position, along with compounds derivatized at the C4, C7, and C8 positions, were designed and chemically synthesized. Compound 12f (IC50 = 1.12 μM against SK-BR-3) exhibits great potency with drug-like properties. Overall, our findings demonstrate that compounds with the vibsanin B scaffold are a new class of HSP90 C-terminal inhibitors with considerable potential as anticancer agents.
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Affiliation(s)
- Li-Dong Shao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Jia Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Baixin Ye
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200025, China
| | - Jiang-Xin Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Zhi-Li Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Yue-Ying Wang
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200025, China
| | - Chengfeng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China.,University of Chinese Academy of Science , Beijing 100049, China
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18
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Abstract
The microtubule-associated protein tau (MAPT, tau) forms neurotoxic aggregates that promote cognitive deficits in tauopathies, the most common of which is Alzheimer's disease (AD). The 90-kDa heat shock protein (Hsp90) chaperone system affects the accumulation of these toxic tau species, which can be modulated with Hsp90 inhibitors. However, many Hsp90 inhibitors are not blood-brain barrier-permeable, and several present associated toxicities. Here, we find that the cochaperone, activator of Hsp90 ATPase homolog 1 (Aha1), dramatically increased the production of aggregated tau. Treatment with an Aha1 inhibitor, KU-177, dramatically reduced the accumulation of insoluble tau. Aha1 colocalized with tau pathology in human brain tissue, and this association positively correlated with AD progression. Aha1 overexpression in the rTg4510 tau transgenic mouse model promoted insoluble and oligomeric tau accumulation leading to a physiological deficit in cognitive function. Overall, these data demonstrate that Aha1 contributes to tau fibril formation and neurotoxicity through Hsp90. This suggests that therapeutics targeting Aha1 may reduce toxic tau oligomers and slow or prevent neurodegenerative disease progression.
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19
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Garg G, Zhao H, Blagg BSJ. Design, synthesis and biological evaluation of alkylamino biphenylamides as Hsp90 C-terminal inhibitors. Bioorg Med Chem 2017; 25:451-457. [PMID: 27914946 PMCID: PMC5214847 DOI: 10.1016/j.bmc.2016.11.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 10/31/2016] [Accepted: 11/03/2016] [Indexed: 02/07/2023]
Abstract
Hsp90 is a promising therapeutic target for the development of anti-cancer agents due to its integral role in the stability and function of proteins associated with all ten hallmarks of cancer. Novobiocin, a coumarin antibiotic, was the first natural product identified that targeted the Hsp90 C-terminal domain and manifested anti-proliferative activity (SKBr3 IC50∼700μM). Subsequent structural investigations on novobiocin led to analogues with significantly improved anti-proliferative activity against multiple cancer cell lines. In an effort to develop more efficacious and diverse analogues, it was recently found that the coumarin ring of novobiocin could be replaced with the biphenyl core without compromising activity. Based on these prior studies, a series of alkylamino biphenylamides was designed, synthesized and evaluated for anti-proliferative activity against two breast cancer cell lines. SAR studies demonstrated that the incorporation of an alkylamino side chain onto the biphenyl core improved anti-proliferative activity and resulted in compounds that exhibit sub-micromolar to mid-nanomolar activity through Hsp90 inhibition. Importantly, these studies indicate the presence of a hydrophilic region about the central core that can be exploited for the design of new inhibitors.
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Affiliation(s)
- Gaurav Garg
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, USA
| | - Huiping Zhao
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, USA
| | - Brian S J Blagg
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, USA.
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