1
|
Carling PJ, Ryan BJ, McGuinness W, Kataria S, Humble SW, Milde S, Duce JA, Kapadia N, Zuercher WJ, Davis JB, Di Daniel E, Wade-Martins R. Multiparameter phenotypic screening for endogenous TFEB and TFE3 translocation identifies novel chemical series modulating lysosome function. Autophagy 2023; 19:692-705. [PMID: 35786165 PMCID: PMC9851200 DOI: 10.1080/15548627.2022.2095834] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The accumulation of toxic protein aggregates in multiple neurodegenerative diseases is associated with defects in the macroautophagy/autophagy-lysosome pathway. The amelioration of disease phenotypes across multiple models of neurodegeneration can be achieved through modulating the master regulator of lysosome function, TFEB (transcription factor EB). Using a novel multi-parameter high-throughput screen for cytoplasmic:nuclear translocation of endogenous TFEB and the related transcription factor TFE3, we screened the Published Kinase Inhibitor Set 2 (PKIS2) library as proof of principle and to identify kinase regulators of TFEB and TFE3. Given that TFEB and TFE3 are responsive to cellular stress we have established assays for cellular toxicity and lysosomal function, critical to ensuring the identification of hit compounds with only positive effects on lysosome activity. In addition to AKT inhibitors which regulate TFEB localization, we identified a series of quinazoline-derivative compounds that induced TFEB and TFE3 translocation. A novel series of structurally-related analogs was developed, and several compounds induced TFEB and TFE3 translocation at higher potency than previously screened compounds. KINOMEscan and cell-based KiNativ kinase profiling revealed high binding for the PRKD (protein kinase D) family of kinases, suggesting good selectivity for these compounds. We describe and utilize a cellular target-validation platform using CRISPRi knockdown and orthogonal PRKD inhibitors to demonstrate that the activity of these compounds is independent of PRKD inhibition. The more potent analogs induced subsequent upregulation of the CLEAR gene network and cleared pathological HTT protein in a cellular model of proteinopathy, demonstrating their potential to alleviate neurodegeneration-relevant phenotypes. Abbreviations: AD: Alzheimer disease; AK: adenylate kinase; CLEAR: coordinated lysosomal expression and regulation; CQ: chloroquine; HD: Huntington disease; PD: Parkinson disease; PKIS2: Published Kinase Inhibitor Set 2; PRKD: protein kinase D; TFEB: transcription factor EB.
Collapse
Affiliation(s)
- Phillippa J Carling
- Department of Physiology, Anatomy and Genetics, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK.,Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, NDM Research Building, Old Road Campus, Oxford, UK
| | - Brent J Ryan
- Department of Physiology, Anatomy and Genetics, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK
| | - William McGuinness
- Department of Physiology, Anatomy and Genetics, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK
| | - Shikha Kataria
- Department of Physiology, Anatomy and Genetics, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK.,Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, NDM Research Building, Old Road Campus, Oxford, UK
| | - Stewart W Humble
- Department of Physiology, Anatomy and Genetics, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK.,Inherited Neurodegenerative Diseases Unit, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD USA
| | - Stefan Milde
- ALBORADA Drug Discovery Institute, University of Cambridge, Island Research Building, Cambridge Biomedical Campus, Cambridge
| | - James A Duce
- ALBORADA Drug Discovery Institute, University of Cambridge, Island Research Building, Cambridge Biomedical Campus, Cambridge
| | - Nirav Kapadia
- Structural Genomics Consortium, UNC, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC USA
| | - William J Zuercher
- Structural Genomics Consortium, UNC, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC USA
| | - John B Davis
- Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, NDM Research Building, Old Road Campus, Oxford, UK
| | - Elena Di Daniel
- Oxford Drug Discovery Institute, Target Discovery Institute, University of Oxford, NDM Research Building, Old Road Campus, Oxford, UK
| | - Richard Wade-Martins
- Department of Physiology, Anatomy and Genetics, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK
| |
Collapse
|
2
|
Toson B, Fortes IS, Roesler R, Andrade SF. Targeting Akt/PKB in pediatric tumors: A review from preclinical to clinical trials. Pharmacol Res 2022; 183:106403. [PMID: 35987481 DOI: 10.1016/j.phrs.2022.106403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/01/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022]
Abstract
The serine/threonine kinase Akt is a major player in the phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling pathway, and its modulation impacts multiple cellular processes such as growth, proliferation, and survival. Several abnormalities in this pathway have been documented over the years, and these alterations were shown to have great implications in tumorigenesis and resistance to chemotherapy. Thus, multiple Akt inhibitors have been developed and tested in adult tumors, and some of them are currently undergoing phase I, II, and III clinical trials for distinct cancers that arise during adulthood. Despite that, the impact of these inhibitors is still not fully understood in pediatric tumors, and Akt-specific targeting seems to be a promising approach to treat children affected by cancers. This review summarizes recent available evidence of Akt inhibitors in pediatric cancers, from both preclinical and clinical studies. In short, we demonstrate the impact that Akt inhibition provides in tumorigenesis, and we suggest targeting the PI3K/Akt/mTOR signaling pathway, alone or in combination with other inhibitors, is a feasible tool to achieve better outcomes in pediatric tumors.
Collapse
Affiliation(s)
- Bruno Toson
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Isadora S Fortes
- Pharmaceutical Synthesis Group (PHARSG), College of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Pharmaceutical Sciences Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Rafael Roesler
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Pharmacology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Saulo F Andrade
- Pharmaceutical Synthesis Group (PHARSG), College of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Pharmaceutical Sciences Graduate Program, Federal University of Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil.
| |
Collapse
|
3
|
Shanak S, Bassalat N, Barghash A, Kadan S, Ardah M, Zaid H. Drug Discovery of Plausible Lead Natural Compounds That Target the Insulin Signaling Pathway: Bioinformatics Approaches. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:2832889. [PMID: 35356248 PMCID: PMC8958086 DOI: 10.1155/2022/2832889] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/16/2022] [Accepted: 02/09/2022] [Indexed: 12/11/2022]
Abstract
The growing smooth talk in the field of natural compounds is due to the ancient and current interest in herbal medicine and their potentially positive effects on health. Dozens of antidiabetic natural compounds were reported and tested in vivo, in silico, and in vitro. The role of these natural compounds, their actions on the insulin signaling pathway, and the stimulation of the glucose transporter-4 (GLUT4) insulin-responsive translocation to the plasma membrane (PM) are all crucial in the treatment of diabetes and insulin resistance. In this review, we collected and summarized a group of available in vivo and in vitro studies which targeted isolated phytochemicals with possible antidiabetic activity. Moreover, the in silico docking of natural compounds with some of the insulin signaling cascade key proteins is also summarized based on the current literature. In this review, hundreds of recent studies on pure natural compounds that alleviate type II diabetes mellitus (type II DM) were revised. We focused on natural compounds that could potentially regulate blood glucose and stimulate GLUT4 translocation through the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway. On attempt to point out potential new natural antidiabetic compounds, this review also focuses on natural ingredients that were shown to interact with proteins in the insulin signaling pathway in silico, regardless of their in vitro/in vivo antidiabetic activity. We invite interested researchers to test these compounds as potential novel type II DM drugs and explore their therapeutic mechanisms.
Collapse
Affiliation(s)
- Siba Shanak
- Faculty of Sciences, Arab American University, P.O Box 240, Jenin, State of Palestine
| | - Najlaa Bassalat
- Faculty of Sciences, Arab American University, P.O Box 240, Jenin, State of Palestine
- Faculty of Medicine, Arab American University, P.O Box 240, Jenin, State of Palestine
| | - Ahmad Barghash
- Computer Science Department, German Jordanian University, Madaba Street. P.O. Box 35247, Amman 11180, Jordan
| | - Sleman Kadan
- Qasemi Research Center, Al-Qasemi Academic College, P.O Box 124, Baqa El-Gharbia 30100, Israel
| | - Mahmoud Ardah
- Faculty of Sciences, Arab American University, P.O Box 240, Jenin, State of Palestine
| | - Hilal Zaid
- Faculty of Medicine, Arab American University, P.O Box 240, Jenin, State of Palestine
- Qasemi Research Center, Al-Qasemi Academic College, P.O Box 124, Baqa El-Gharbia 30100, Israel
| |
Collapse
|
4
|
Baumann G, Meckel T, Böhm K, Shih YH, Dickhaut M, Reichardt T, Pilakowski J, Pehl U, Schmidt B. Illuminating a Dark Kinase: Structure-Guided Design, Synthesis, and Evaluation of a Potent Nek1 Inhibitor and Its Effects on the Embryonic Zebrafish Pronephros. J Med Chem 2021; 65:1265-1282. [DOI: 10.1021/acs.jmedchem.0c02118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Georg Baumann
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Tobias Meckel
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Kevin Böhm
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Yung-Hsin Shih
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Mirco Dickhaut
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Torben Reichardt
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Johannes Pilakowski
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| | - Ulrich Pehl
- Merck Healthcare KGaA, Biopharma R&D, Discovery and Development Technologies, 64293 Darmstadt, Germany
| | - Boris Schmidt
- Clemens Schöpf−Institute of Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287 Darmstadt, Germany
| |
Collapse
|
5
|
The importance of indole and azaindole scaffold in the development of antitumor agents. Eur J Med Chem 2020; 203:112506. [PMID: 32688198 DOI: 10.1016/j.ejmech.2020.112506] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/14/2020] [Accepted: 05/25/2020] [Indexed: 12/24/2022]
Abstract
With some indoles and azaindoles being successfully developed as anticancer drugs, the design and synthesis of indole and azaindole derivatives with remarkable antitumor activity has received increasing attention and significant progress has been made. This paper reviews the recent progress in the study of tumorigenesis, mechanism of actions and structure activity relationships about anticancer indole and azindole derivatives. Combining structure activity relationships and molecular targets-related knowledge, this review will help researchers design more effective, safe and cost-effective anticancer indoles and azindoles agents.
Collapse
|
6
|
Mahajan P, Wadhwa B, Barik MR, Malik F, Nargotra A. Combining ligand- and structure-based in silico methods for the identification of natural product-based inhibitors of Akt1. Mol Divers 2019; 24:45-60. [PMID: 30798436 DOI: 10.1007/s11030-019-09924-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/29/2019] [Indexed: 01/08/2023]
Abstract
The traditional method of drug discovery process has been surpassed by a rational approach where computer-aided drug designing plays a vital role in the identification of leads from large compound databases. Further, natural products have an important role in drug discovery as these have been the source of most active ingredients of medicines. Herein, in silico structure- and ligand-based approaches have been applied to screen in-house IIIM natural product repository for Akt1 (serine/threonine protein kinases) which is a well-known therapeutic target for cancer due to its overexpression and preventing the cells from undergoing apoptosis. Combined ligand-based and structure-based strategies were applied on to the existing library comprising of about 700 pure natural products, and the compounds identified from screening were biologically evaluated for Akt1 inhibition using Akt1 kinase activity assay. Fourteen promising compounds showed significant inhibition at 500 nM through in vitro screening, and from them, eight were new for Akt1 inhibition. Through the MD studies of Akt1 with the most active compound IN00145, it was inferred that Lys179, Glu191, Glu228, Ala230, Glu234 and Asp292 are the important amino acid residues which provide stability to the Akt1-IN00145 complex. Lead optimization studies were also performed around the actives to design better and selective inhibitors for Akt1. The results emphasized the successful application of virtual screening to identify new Akt1 inhibitor scaffolds that can be developed into a drug candidate in drug discovery programme.
Collapse
Affiliation(s)
- Priya Mahajan
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Bhumika Wadhwa
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Manas Ranjan Barik
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Fayaz Malik
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Amit Nargotra
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India. .,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.
| |
Collapse
|
7
|
Al-Sha'er MA, Taha MO. Ligand-based modeling of Akt3 lead to potent dual Akt1/Akt3 inhibitor. J Mol Graph Model 2018; 83:153-166. [PMID: 29456101 DOI: 10.1016/j.jmgm.2018.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 01/01/2018] [Accepted: 02/02/2018] [Indexed: 11/26/2022]
Abstract
Akt1 and Akt3 are important serine/threonine-specific protein kinases involved in G2 phase required by cancer cells to maintain cell cycle and to prevent cell death. Accordingly, inhibitors of these kinases should have potent anti-cancer properties. This prompted us to use pharmacophore/QSAR modeling to identify optimal binding models and physicochemical descriptors that explain bioactivity variation within a set of 74 diverse Akt3 inhibitors. Two successful orthogonal pharmacophores were identified and further validated using receiver operating characteristic (ROC) curve analyses. The pharmacophoric models and associated QSAR equation were applied to screen the national cancer institute (NCI) list of compounds for new Akt3 inhibitors. Six hits showed significant experimental anti-Akt3 IC50 values, out of which one compound exhibited dual low micromolar anti-Akt1 and anti-Akt3 inhibitory profiles.
Collapse
Affiliation(s)
| | - Mutasem O Taha
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, Amman, Jordan.
| |
Collapse
|
8
|
Huck BR, Mochalkin I. Recent progress towards clinically relevant ATP-competitive Akt inhibitors. Bioorg Med Chem Lett 2017; 27:2838-2848. [PMID: 28506751 DOI: 10.1016/j.bmcl.2017.04.090] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 04/26/2017] [Accepted: 04/27/2017] [Indexed: 01/01/2023]
Abstract
The frequency of PI3K/Akt/mTOR (PAM) Pathway mutations in human cancers sparked interest to determine if the pathway is druggable. The modest clinical benefit observed with mTOR rapalogs (temsirolimus and everolimus) provided further motivation to identify additional nodes of pathway inhibition that lead to improved clinical benefit. Akt is a central signaling node of the PAM pathway and could be an ideal target for improved pathway inhibition. Furthermore, inhibitors of Akt may be especially beneficial in tumors with Akt1 mutations. Recently, multiple ATP-competitive Akt inhibitors have been identified and are currently in clinical development. This review details the medicinal chemistry efforts towards identification of these molecules, highlights relevant preclinical data supporting clinical evaluation, and summarizes current clinical development plans.
Collapse
Affiliation(s)
- Bayard R Huck
- Discovery Technologies, Global Research & Development, Merck KGaA, Darmstadt, Germany.
| | - Igor Mochalkin
- Discovery Technologies, Global Research & Development, Merck KGaA, Darmstadt, Germany
| |
Collapse
|
9
|
Feneyrolles C, Guiet L, Singer M, Van Hijfte N, Daydé-Cazals B, Fauvel B, Chevé G, Yasri A. Discovering novel 7-azaindole-based series as potent AXL kinase inhibitors. Bioorg Med Chem Lett 2017; 27:862-866. [PMID: 28094183 DOI: 10.1016/j.bmcl.2017.01.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 12/14/2016] [Accepted: 01/06/2017] [Indexed: 12/27/2022]
Abstract
AXL is a receptor tyrosine kinase that plays a key role in tumor growth and proliferation. The scientific community has validated AXL as therapeutic target in the treatment of cancers for several years now, and several AXL inhibitors have been developed but none of them are approved. In this context, we started to design new kinase inhibitors targeting AXL from the 7-azaindole scaffold well known to interact with the ATP binding site of the kinase. Focused screening and chemical diversification around 7-azaindole scaffold were developed, based on modeling studies and medicinal chemistry rational, leading to the discovery of a new family of hits with potent inhibitory activity against AXL.
Collapse
Affiliation(s)
- Clémence Feneyrolles
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Léa Guiet
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Mathilde Singer
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Nathalie Van Hijfte
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Bénédicte Daydé-Cazals
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Bénédicte Fauvel
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Gwénaël Chevé
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France
| | - Abdelaziz Yasri
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 1682 rue de la Valsière, CS 17383, 34189 Montpellier Cedex 4, France.
| |
Collapse
|
10
|
Scheipl S, Barnard M, Cottone L, Jorgensen M, Drewry DH, Zuercher WJ, Turlais F, Ye H, Leite AP, Smith JA, Leithner A, Möller P, Brüderlein S, Guppy N, Amary F, Tirabosco R, Strauss SJ, Pillay N, Flanagan AM. EGFR inhibitors identified as a potential treatment for chordoma in a focused compound screen. J Pathol 2016; 239:320-34. [PMID: 27102572 PMCID: PMC4922416 DOI: 10.1002/path.4729] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/11/2016] [Accepted: 04/10/2016] [Indexed: 12/24/2022]
Abstract
Chordoma is a rare malignant bone tumour with a poor prognosis and limited therapeutic options. We undertook a focused compound screen (FCS) against 1097 compounds on three well-characterized chordoma cell lines; 154 compounds were selected from the single concentration screen (1 µm), based on their growth-inhibitory effect. Their half-maximal effective concentration (EC50 ) values were determined in chordoma cells and normal fibroblasts. Twenty-seven of these compounds displayed chordoma selective cell kill and 21/27 (78%) were found to be EGFR/ERBB family inhibitors. EGFR inhibitors in clinical development were then studied on an extended cell line panel of seven chordoma cell lines, four of which were sensitive to EGFR inhibition. Sapitinib (AstraZeneca) emerged as the lead compound, followed by gefitinib (AstraZeneca) and erlotinib (Roche/Genentech). The compounds were shown to induce apoptosis in the sensitive cell lines and suppressed phospho-EGFR and its downstream pathways in a dose-dependent manner. Analysis of substituent patterns suggested that EGFR-inhibitors with small aniline substituents in the 4-position of the quinazoline ring were more effective than inhibitors with large substituents in that position. Sapitinib showed significantly reduced tumour growth in two xenograft mouse models (U-CH1 xenograft and a patient-derived xenograft, SF8894). One of the resistant cell lines (U-CH2) was shown to express high levels of phospho-MET, a known bypass signalling pathway to EGFR. Neither amplifications (EGFR, ERBB2, MET) nor mutations in EGFR, ERBB2, ERBB4, PIK3CA, BRAF, NRAS, KRAS, PTEN, MET or other cancer gene hotspots were detected in the cell lines. Our findings are consistent with the reported (p-)EGFR expression in the majority of clinical samples, and provide evidence for exploring the efficacy of EGFR inhibitors in the treatment of patients with chordoma and studying possible resistance mechanisms to these compounds in vitro and in vivo. © 2016 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
Collapse
Affiliation(s)
- Susanne Scheipl
- University College London Cancer Institute, London, UK
- Department of Orthopaedics and Orthopaedic Surgery, Medical University of Graz, Austria
| | - Michelle Barnard
- University College London Cancer Institute, London, UK
- Cancer Research Technology Discovery Laboratories, Cambridge, UK
- CRUK-MedImmune Alliance Laboratory, Cambridge, UK
| | - Lucia Cottone
- University College London Cancer Institute, London, UK
| | | | - David H Drewry
- GlaxoSmithKline, Research Triangle Park, NC, USA
- SGC-UNC, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC, USA
| | - William J Zuercher
- GlaxoSmithKline, Research Triangle Park, NC, USA
- SGC-UNC, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC, USA
| | - Fabrice Turlais
- Cancer Research Technology Discovery Laboratories, Cambridge, UK
| | - Hongtao Ye
- Department of Histopathology, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Ana P Leite
- University College London Cancer Institute, London, UK
| | - James A Smith
- Cancer Research Technology Discovery Laboratories, Cambridge, UK
| | - Andreas Leithner
- Department of Orthopaedics and Orthopaedic Surgery, Medical University of Graz, Austria
| | | | | | - Naomi Guppy
- University College London Advanced Diagnostics, London, UK
| | - Fernanda Amary
- Department of Histopathology, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Roberto Tirabosco
- Department of Histopathology, Royal National Orthopaedic Hospital, Stanmore, UK
| | | | - Nischalan Pillay
- University College London Cancer Institute, London, UK
- Department of Histopathology, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Adrienne M Flanagan
- University College London Cancer Institute, London, UK
- Department of Histopathology, Royal National Orthopaedic Hospital, Stanmore, UK
- University College London Advanced Diagnostics, London, UK
| |
Collapse
|
11
|
Al-Sha’er MA, Mansi I, Almazari I, Hakooz N. Evaluation of novel Akt1 inhibitors as anticancer agents using virtual co-crystallized pharmacophore generation. J Mol Graph Model 2015; 62:213-225. [DOI: 10.1016/j.jmgm.2015.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/07/2015] [Accepted: 10/07/2015] [Indexed: 11/26/2022]
|
12
|
Zhan W, Li D, Che J, Zhang L, Yang B, Hu Y, Liu T, Dong X. Integrating docking scores, interaction profiles and molecular descriptors to improve the accuracy of molecular docking: Toward the discovery of novel Akt1 inhibitors. Eur J Med Chem 2014; 75:11-20. [DOI: 10.1016/j.ejmech.2014.01.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 01/08/2014] [Accepted: 01/13/2014] [Indexed: 11/30/2022]
|
13
|
|
14
|
Vilches-Herrera M, Knepper I, de Souza N, Villinger A, Sosnovskikh VY, Iaroshenko VO. One-pot, three-component synthesis of 7-azaindole derivatives from N-substituted 2-amino-4-cyanopyrroles, various aldehydes, and active methylene compounds. ACS COMBINATORIAL SCIENCE 2012; 14:434-41. [PMID: 22616767 DOI: 10.1021/co300042v] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient and practical route to 7-azaindole framework has been developed by one-pot, three-component cyclocondensation of N-substituted 2-amino-4-cyanopyrroles, various aldehydes, and active methylene compounds in ethanol or acetic acid at reflux. Reactions involving tetronic acid, indane-1,3-dione, dimedone, and 5-phenylcyclohexane-1,3-dione gave carbocyclic fused 7-azaindoles, whereas Meldrum's acid, benzoylacetonitrile, and malononitrile resulted in the highly substituted 7-azaindole derivatives, making this strategy very useful in diversity-oriented synthesis (DOS).
Collapse
Affiliation(s)
| | - Ingo Knepper
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a,
18059 Rostock, Germany
| | - Nayane de Souza
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a,
18059 Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a,
18059 Rostock, Germany
| | | | - Viktor O. Iaroshenko
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a,
18059 Rostock, Germany
- National Taras Shevchenko University, 62 Volodymyrska Str., 01033 Kyiv, Ukraine
| |
Collapse
|
15
|
Deng R, Yang F, Chang SH, Tang J, Qin J, Feng GK, Ding K, Zhu XF. DC120, a novel and potent inhibitor of AKT kinase, induces tumor cell apoptosis and suppresses tumor growth. Mol Pharmacol 2012; 82:189-98. [PMID: 22553359 DOI: 10.1124/mol.111.077271] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Protein kinase B/AKT kinase is the core component of the phosphatidylinositol 3-kinase/AKT signaling pathway, which is frequently hyperactivated in human cancers. We designed and synthesized a series of 2-pyrimidyl-5-amidothiazole compounds based on the ATP binding site of AKT, and the most potent compound, (S)-N-(1-amino-3-(2,4-dichlorophenyl)propan-2-yl)-2-(2-(methylamino)pyrimidin-4-yl)thiazole-5-carboxamide (DC120), was identified to inhibit AKT activity in vitro with an EC(50) of 153 nM by a fluorescence resonance energy transfer-based Z'-LYTE assay. The antitumor effect of DC120 was tested on human CNE2 and MDA-MB-453 cell lines and the CNE2 xenograft model. The results showed that DC120 could obviously inhibit the proliferation of CNE2 and MDA-MB-453 cells via induction of apoptosis, with the evidence of increases in sub-G(1) and annexin V-positive cells, characteristic morphologic changes of apoptosis in the nucleus, and cleaved caspase-3. Further study showed that MDA-MB-453 cells transfected with constitutively activated AKT1 were more sensitive to DC120,whereas CNE2 cells with knockdown of AKT1 expression by short hairpin RNA were more resistant to DC120. Of more importance, DC120 partially attenuated the phosphorylation levels of forkhead transcription factor (FKHR), FKHRL1, glycogen synthase kinase 3β, and mammalian target of rapamycin in a dose-dependent and time-dependent fashion and led to an increase in the nuclear accumulation of exogenous FKHR in cancer cells. In addition, DC120 at 20 mg/kg/day inhibited the CNE2 xenograft tumor growth with a treated group/control group ratio of 38.1%, accompanied by increasing terminal deoxynucleotidyl transferasedUTP nick-end labeling-positive cells in the tumor sample. In addition, DC120 induced a feedback loop to activate the mitogen-activated protein kinase pathway and treatment with mitogen-activated protein kinase kinase inhibitor 1,4-diamino-2,3-dicyano-1,4-bis(methylthio)butadiene (U0126) and DC120 synergistically induced cancer cell apoptosis. These data provide validation for the development of DC120 to treat cancers displaying elevated levels of AKT.
Collapse
Affiliation(s)
- Rong Deng
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, 651 Dongfeng Road East, Guangzhou, China
| | | | | | | | | | | | | | | |
Collapse
|
16
|
New thiazole carboxamides as potent inhibitors of Akt kinases. Bioorg Med Chem Lett 2011; 22:1208-12. [PMID: 22172705 DOI: 10.1016/j.bmcl.2011.11.080] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 10/31/2011] [Accepted: 11/19/2011] [Indexed: 01/10/2023]
Abstract
A new series of 2-substituted thiazole carboxamides were identified as potent pan inhibitors against all three isoforms of Akt (Akt1, Akt2 and Akt3) by systematic optimization of weak screening hit N-(1-amino-3-phenylpropan-2-yl)-2-phenylthiazole-5-carboxamide (1). One of the most potent compounds, 5m, inhibited the kinase activities of Akt1, Akt2 and Akt3 with IC(50) values of 25, 196 and 24nM, respectively. The compound also potently inhibited the phosphorylation of downstream MDM2 and GSK3β proteins, and displayed strongly antiproliferative activity in prostate cancer cells. The inhibitors might serve as lead compounds for further development of novel effective anticancer agents.
Collapse
|
17
|
Bamborough P, Brown MJ, Christopher JA, Chung CW, Mellor GW. Selectivity of kinase inhibitor fragments. J Med Chem 2011; 54:5131-43. [PMID: 21699136 DOI: 10.1021/jm200349b] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A kinase-focused screening set of fragments has been assembled and has proved successful for the discovery of ligand-efficient hits against many targets. Here we present some of our general conclusions from this exercise. Notably, we present the first profiling results for literature fragments that have previously been used as starting points for optimization against individual kinases. We consider the importance of screening format and the extent to which selectivity is helpful in selecting fragments for progression. Results are also outlined for fragments targeting the DFG-out conformation and for atypical kinases such as PIM1 and lipid kinases.
Collapse
Affiliation(s)
- Paul Bamborough
- GlaxoSmithKline R&D, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK.
| | | | | | | | | |
Collapse
|
18
|
Mattmann ME, Stoops SL, Lindsley CW. Inhibition of Akt with small molecules and biologics: historical perspective and current status of the patent landscape. Expert Opin Ther Pat 2011; 21:1309-38. [PMID: 21635152 DOI: 10.1517/13543776.2011.587959] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Akt plays a pivotal role in cell survival and proliferation through a number of downstream effectors; unregulated activation of the PI3K/PTEN/Akt pathway is a prominent feature of many human cancers. Akt is considered an attractive target for cancer therapy by the inhibition of Akt alone or in combination with standard cancer chemotherapeutics. Both preclinical animal studies and clinical trials in humans have validated Akt as an important target of cancer drug discovery. AREA COVERED A historical perspective of Akt inhibitors, including PI analogs, ATP-competitive and allosteric Akt inhibitors, along with other inhibitory mechanisms are reviewed in this paper with a focus on issued patents, patent applications and a summary of clinical trial updates since the last review in 2007. EXPERT OPINION A vast diversity of inhibitors of Akt, both small molecule and biologic, have been developed in the past 5 years, with over a dozen in various phases of clinical development, and several displaying efficacy in humans. While it is not yet clear which mechanism of Akt inhibition will be optimal in humans, or which Akt isoforms to inhibit, or whether a small molecule or biologic agent will be best, data to all of these points will be available in the near future.
Collapse
Affiliation(s)
- Margrith E Mattmann
- Vanderbilt University, Vanderbilt Medical Center, Vanderbilt Program in Drug Discovery, Department of Pharmacology , Department of Chemistry , Nashville, TN 37232 , USA
| | | | | |
Collapse
|
19
|
Hong S, Lee S, Kim B, Lee H, Hong SS, Hong S. Discovery of new azaindole-based PI3Kα inhibitors: Apoptotic and antiangiogenic effect on cancer cells. Bioorg Med Chem Lett 2010; 20:7212-5. [DOI: 10.1016/j.bmcl.2010.10.108] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 10/20/2010] [Accepted: 10/21/2010] [Indexed: 12/22/2022]
|
20
|
McHardy T, Caldwell JJ, Cheung KM, Hunter LJ, Taylor K, Rowlands M, Ruddle R, Henley A, de Haven Brandon A, Valenti M, Davies TG, Fazal L, Seavers L, Raynaud FI, Eccles SA, Aherne GW, Garrett MD, Collins I. Discovery of 4-amino-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamides as selective, orally active inhibitors of protein kinase B (Akt). J Med Chem 2010; 53:2239-49. [PMID: 20151677 PMCID: PMC2832868 DOI: 10.1021/jm901788j] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Protein kinase B (PKB or Akt) is an important component of intracellular signaling pathways regulating growth and survival. Signaling through PKB is frequently deregulated in cancer, and inhibitors of PKB therefore have potential as antitumor agents. The optimization of lipophilic substitution within a series of 4-benzyl-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-amines provided ATP-competitive, nanomolar inhibitors with up to 150-fold selectivity for inhibition of PKB over the closely related kinase PKA. Although active in cellular assays, compounds containing 4-amino-4-benzylpiperidines underwent metabolism in vivo, leading to rapid clearance and low oral bioavailability. Variation of the linker group between the piperidine and the lipophilic substituent identified 4-amino-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamides as potent and orally bioavailable inhibitors of PKB. Representative compounds modulated biomarkers of signaling through PKB in vivo and strongly inhibited the growth of human tumor xenografts in nude mice at well-tolerated doses.
Collapse
Affiliation(s)
- Tatiana McHardy
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Angiolini M, Borgia AL, Bandiera T. Multistep synthesis of a new tricyclic azaindole-based scaffold. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.06.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|