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Teng CLJ, Cheng PT, Cheng YC, Tsai JR, Chen MC, Lin H. Dinaciclib inhibits the growth of acute myeloid leukemia cells through either cell cycle-related or ERK1/STAT3/MYC pathways. Toxicol In Vitro 2024; 96:105768. [PMID: 38135130 DOI: 10.1016/j.tiv.2023.105768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 12/12/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Although immature differentiation and uncontrolled proliferation of hematopoietic stem cells are thought to be the primary mechanisms of acute myeloid leukemia (AML), the pathophysiology in most cases remains unclear. Dinaciclib, a selective small molecule targeting multiple cyclin-dependent kinases (CDKs), is currently being evaluated in oncological clinical trials. Despite the proven anticancer potential of dinaciclib, the differential molecular mechanisms by which it inhibits the growth of different AML cell lines remain unclear. In the current study, we treated HL-60 and KG-1 AML cell lines with dinaciclib and investigated the potential mechanisms of dinaciclib-induced AML cell growth inhibition using flow cytometry and western blotting assays. Data from HL-60 and KG-1 AML cells were validated using human primary AML cells. The results showed that the growth inhibitory effect of dinaciclib was more sensitive in HL-60 cells (IC50: 8.46 nM) than in KG-1 cells (IC50: 14.37 nM). The protein decline in Cyclin A/B and CDK1 and cell cycle arrest in the G2/M phase were more profound in HL-60 cells, corresponding to its growth inhibition. Although the growth inhibition of KG-1 cells by dinaciclib was still pronounced, the cell cycle-associated proteins were relatively insensitive. In addition to cell cycle regulation, the activation/expression of ERK1/STAT3/MYC signaling was significantly reduced by dinaciclib in KG-1 cells compared with that in HL-60 cells. Regarding the results of primary AML cells, we observed ERK1/STAT3/MYC inhibition and cell cycle regulation in different patients. These findings suggest that the cell cycle-associated and ERK1/STAT3/MYC signaling pathways might be two distinct mechanisms by which dinaciclib inhibits AML cells, which could facilitate the development of combination therapy for AML in the future.
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Affiliation(s)
- Chieh-Lin Jerry Teng
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan; Division of Hematology/Medical Oncology, Department of Medicine, Taichung Veterans General Hospital, Taichung, Taiwan; Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan; Department of Life Science, Tunghai University, Taichung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Pang-Ting Cheng
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Yu-Chiao Cheng
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Jia-Rung Tsai
- Division of Hematology/Medical Oncology, Department of Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Mei-Chih Chen
- Translational Cell Therapy Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Ho Lin
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.
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2
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Zhou Y, Li X, Luo P, Chen H, Zhou Y, Zheng X, Yin Y, Wei H, Liu H, Xia W, Shi M, Li X. Identification of abemaciclib derivatives targeting cyclin-dependent kinase 4 and 6 using molecular dynamics, binding free energy calculation, synthesis, and pharmacological evaluation. Front Pharmacol 2023; 14:1154654. [PMID: 37234717 PMCID: PMC10206264 DOI: 10.3389/fphar.2023.1154654] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
CDK4/6 plays a crucial role in various cancers and is an effective anticancer drug target. However, the gap between clinical requirements and approved CDK4/6 drugs is unresolved. Thus, there is an urgent need to develop selective and oral CDK4/6 inhibitors, particularly for monotherapy. Here, we studied the interaction between abemaciclib and human CDK6 using molecular dynamics simulations, binding free energy calculations, and energy decomposition. V101 and H100 formed stable hydrogen bonds with the amine-pyrimidine group, and K43 interacted with the imidazole ring via an unstable hydrogen bond. Meanwhile, I19, V27, A41, and L152 interacted with abemaciclib through π-alkyl interactions. Based on the binding model, abemaciclib was divided into four regions. With one region modification, 43 compounds were designed and evaluated using molecular docking. From each region, three favorable groups were selected and combined with each other to obtain 81 compounds. Among them, C2231-A, which was obtained by removing the methylene group from C2231, showed better inhibition than C2231. Kinase profiling revealed that C2231-A showed inhibitory activity similar to that of abemaciclib; additionally, C2231-A inhibited the growth of MDA-MB-231 cells to a greater extent than did abemaciclib. Based on molecular dynamics simulation, C2231-A was identified as a promising candidate compound with considerable inhibitory effects on human breast cancer cell lines.
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Affiliation(s)
- Yanting Zhou
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xiandeng Li
- College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Peifang Luo
- Department of Cardiovascular Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Huiting Chen
- College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Yan Zhou
- NHC Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China
| | - Xueting Zheng
- NHC Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China
| | - Yuan Yin
- NHC Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China
| | - Haoche Wei
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hongji Liu
- Department of Ophthalmology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China
| | - Wen Xia
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Mingsong Shi
- NHC Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China
| | - Xiaoan Li
- NHC Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, Sichuan, China
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Ren A, Wei W, Liang Z, Zhou M, Liang T, Zang N. Synthesis and bioactive evaluation of N-((1-methyl-1 H-indol-3-yl)methyl)- N-(3,4,5-trimethoxyphenyl)acetamide derivatives as agents for inhibiting tubulin polymerization. RSC Med Chem 2023; 14:113-121. [PMID: 36760739 PMCID: PMC9890541 DOI: 10.1039/d2md00340f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 10/26/2022] [Indexed: 11/23/2022] Open
Abstract
Based on the inhibitory effect of CA-4 analogues and indoles on tubulin polymerization, we designed and synthesized a series of N-((1-methyl-1H-indol-3-yl)methyl)-2-(1H-pyrazol-1-yl or triazolyl)-N-(3,4,5-trimethoxyphenyl)acetamides. All the synthesized compounds were evaluated for their in vitro antiproliferative activities against HeLa, MCF-7 and HT-29 cancer cell lines, and some of the target compounds demonstrated effective activities towards the three tumour cell lines. Among them, compound 7d exhibited the most potent activities against HeLa (IC50 = 0.52 μM), MCF-7 (IC50 = 0.34 μM) and HT-29 (IC50 = 0.86 μM). Mechanistic studies revealed that compound 7d induced cell apoptosis in a dose-dependent manner, arrested the cells in the G2/M phase and inhibited polymerization of tubulin via a consistent way with colchicine. Therefore, 7d is a potential agent for the further development of tubulin polymerization inhibitors.
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Affiliation(s)
- Aonan Ren
- College of Chemistry and Chemical Engineering, Guangxi University Nanning 530004 China
| | - Wanxing Wei
- College of Chemistry and Chemical Engineering, Guangxi University Nanning 530004 China
| | - Zhengcheng Liang
- College of Chemistry and Chemical Engineering, Guangxi University Nanning 530004 China
| | - Min Zhou
- College of Chemistry and Chemical Engineering, Guangxi University Nanning 530004 China
| | - Taoyuan Liang
- College of Chemistry and Chemical Engineering, Guangxi University Nanning 530004 China
| | - Ning Zang
- School of Basic Medicine, Guangxi Medical University Nanning 530021 China
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Mou J, Qiu S, Chen D, Deng Y, Tekleab T. Design, synthesis, and primary activity assays of baicalein derivatives as cyclin-dependent kinase 1 inhibitors. Chem Biol Drug Des 2021; 98:639-654. [PMID: 34233076 DOI: 10.1111/cbdd.13917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 04/27/2021] [Accepted: 07/03/2021] [Indexed: 12/01/2022]
Abstract
Malignant tumor is a disease with high mortality. Traditional treatment methods have many disadvantages, such as side-effects, drug resistance. Because cyclin-dependent kinase 1 (CDK1) plays an indispensable role in cell cycle regulation, it became an attractive target in rational anti-cancer drug discovery. Herein, we reported a series of baicalein derivatives, which remarkably repressed the proliferation of MCF-7 tumor cells and the activity of CDK1/cyclin B kinase. Among them, compound 4a displayed better inhibition rate than flavopiridol against MCF-7 proliferation at the concentration of 50 μg/ml, comparable to compound CGP74514A, while compound 3o possessed the best activity against CDK1/cyclin B kinase (IC50 = 1.26 μM). The inhibitory activities toward the kinase well correlated with anti-proliferative activities. Molecular docking results suggested that compound 3o can interact with the key amino acid residues, E81, L83, and D146, of CDK1 through hydrogen bond just like flavopiridol does. And it can also form an extra hydrogen bond with D146 by its introduced 7-acrylate group, which flavopiridol does not have. These findings proved that baicalein derivatives can be used as CDK1 inhibitors fighting against cancer.
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Affiliation(s)
- Jiajia Mou
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shuang Qiu
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Danghui Chen
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanru Deng
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Teka Tekleab
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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5
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Mou J, Chen D, Deng Y. Inhibitors of Cyclin-Dependent Kinase 1/2 for Anticancer Treatment. Med Chem 2020; 16:307-325. [PMID: 31241436 DOI: 10.2174/1573406415666190626113900] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 03/05/2019] [Accepted: 05/14/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND The cell cycle is regulated by cyclin-dependent kinases (CDKs) and their cognate cyclins, along with their endogenous inhibitors (CDKIs). CDKs act as central regulators in this process. Different CDKs play relevant roles in different phases. Among all CDKs, CDK1 is indispensible, which can drive all events that are required in the cell cycle in the absence of interphase CDKs (CDK2, CDK3, CDK4 and CDK6). So, CDK1 is an attractive target for anticancer drug development. METHODS CDK1 and CDK2 have 89.19% similar residues and 74.32% identical residues, their structures especially the ATP-binding sites are of great similarity. So, it is difficult to inhibit CDK1 and CDK2 individually. In this review, recent advances about CDK1/2 inhibitors were summarized. The chemical structures of different classes of CDK1/2 inhibitors and their structure activity are presented. RESULTS 19 kinds of CDK1/2 or CDK1 inhibitors with different scaffolds, including CDK2 allosteric inhibitors, were summarized. Some inhibitors are nature derived, for example, phenanthrene derivatives, nortopsentin derivatives, variolin B derivatives and meridians. CONCLUSION Nature products, especially marine ones are potential resources for CDK1 inhibitors development. The findings of CDK2 allosteric inhibitors open an avenue to the discovery of novel selective CDK1 or other CDKs allosteric inhibitors.
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Affiliation(s)
- Jiajia Mou
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Health Industry Park, Jinghai District, Tianjin, 301617, China
| | - Danghui Chen
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Health Industry Park, Jinghai District, Tianjin, 301617, China
| | - Yanru Deng
- Department of Medicinal Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Health Industry Park, Jinghai District, Tianjin, 301617, China
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6
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Lücking U, Scholz A, Lienau P, Siemeister G, Kosemund D, Bohlmann R, Briem H, Terebesi I, Meyer K, Prelle K, Denner K, Bömer U, Schäfer M, Eis K, Valencia R, Ince S, von Nussbaum F, Mumberg D, Ziegelbauer K, Klebl B, Choidas A, Nussbaumer P, Baumann M, Schultz‐Fademrecht C, Rühter G, Eickhoff J, Brands M. Identification of Atuveciclib (BAY 1143572), the First Highly Selective, Clinical PTEFb/CDK9 Inhibitor for the Treatment of Cancer. ChemMedChem 2017; 12:1776-1793. [PMID: 28961375 PMCID: PMC5698704 DOI: 10.1002/cmdc.201700447] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/26/2017] [Indexed: 12/25/2022]
Abstract
Selective inhibition of exclusively transcription-regulating PTEFb/CDK9 is a promising new approach in cancer therapy. Starting from lead compound BAY-958, lead optimization efforts strictly focusing on kinase selectivity, physicochemical and DMPK properties finally led to the identification of the orally available clinical candidate atuveciclib (BAY 1143572). Structurally characterized by an unusual benzyl sulfoximine group, BAY 1143572 exhibited the best overall profile in vitro and in vivo, including high efficacy and good tolerability in xenograft models in mice and rats. BAY 1143572 is the first potent and highly selective PTEFb/CDK9 inhibitor to enter clinical trials for the treatment of cancer.
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Affiliation(s)
- Ulrich Lücking
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Arne Scholz
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Philip Lienau
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Gerhard Siemeister
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Dirk Kosemund
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Rolf Bohlmann
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Hans Briem
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Ildiko Terebesi
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Kirstin Meyer
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Katja Prelle
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Karsten Denner
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Ulf Bömer
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Martina Schäfer
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Knut Eis
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Ray Valencia
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Stuart Ince
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Franz von Nussbaum
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Dominik Mumberg
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Karl Ziegelbauer
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
| | - Bert Klebl
- Lead Discovery Center GmbH (LDC)Otto-Hahn-Str. 1544227DortmundGermany
| | - Axel Choidas
- Lead Discovery Center GmbH (LDC)Otto-Hahn-Str. 1544227DortmundGermany
| | - Peter Nussbaumer
- Lead Discovery Center GmbH (LDC)Otto-Hahn-Str. 1544227DortmundGermany
| | - Matthias Baumann
- Lead Discovery Center GmbH (LDC)Otto-Hahn-Str. 1544227DortmundGermany
| | | | - Gerd Rühter
- Lead Discovery Center GmbH (LDC)Otto-Hahn-Str. 1544227DortmundGermany
| | - Jan Eickhoff
- Lead Discovery Center GmbH (LDC)Otto-Hahn-Str. 1544227DortmundGermany
| | - Michael Brands
- Bayer AGPharmaceuticals Division, Drug DiscoveryMüllerstr. 17813353BerlinGermany
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7
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Sirvent JA, Lücking U. Novel Pieces for the Emerging Picture of Sulfoximines in Drug Discovery: Synthesis and Evaluation of Sulfoximine Analogues of Marketed Drugs and Advanced Clinical Candidates. ChemMedChem 2017; 12:487-501. [PMID: 28221724 PMCID: PMC5485063 DOI: 10.1002/cmdc.201700044] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 01/17/2023]
Abstract
Sulfoximines have gained considerable recognition as an important structural motif in drug discovery of late. In particular, the clinical kinase inhibitors for the treatment of cancer, roniciclib (pan-CDK inhibitor), BAY 1143572 (P-TEFb inhibitor), and AZD 6738 (ATR inhibitor), have recently drawn considerable attention. Whilst the interest in this underrepresented functional group in drug discovery is clearly on the rise, there remains an incomplete understanding of the medicinal-chemistry-relevant properties of sulfoximines. Herein we report the synthesis and in vitro characterization of a variety of sulfoximine analogues of marketed drugs and advanced clinical candidates to gain a better understanding of this neglected functional group and its potential in drug discovery.
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Norez C, Vandebrouck C, Bertrand J, Noel S, Durieu E, Oumata N, Galons H, Antigny F, Chatelier A, Bois P, Meijer L, Becq F. Roscovitine is a proteostasis regulator that corrects the trafficking defect of F508del-CFTR by a CDK-independent mechanism. Br J Pharmacol 2015; 171:4831-49. [PMID: 25065395 DOI: 10.1111/bph.12859] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 03/07/2014] [Accepted: 04/10/2014] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE The most common mutation in cystic fibrosis (CF), F508del, causes defects in trafficking, channel gating and endocytosis of the CF transmembrane conductance regulator (CFTR) protein. Because CF is an orphan disease, therapeutic strategies aimed at improving mutant CFTR functions are needed to target the root cause of CF. EXPERIMENTAL APPROACH Human CF airway epithelial cells were treated with roscovitine 100 μM for 2 h before CFTR maturation, expression and activity were examined. The mechanism of action of roscovitine was explored by recording the effect of depleting endoplasmic reticulum (ER) Ca(2+) on the F508del-CFTR/calnexin interaction and by measuring proteasome activity. KEY RESULTS Of the cyclin-dependent kinase (CDK) inhibitors investigated, roscovitine was found to restore the cell surface expression and defective channel function of F508del-CFTR in human CF airway epithelial cells. Neither olomoucine nor (S)-CR8, two very efficient CDK inhibitors, corrected F508del-CFTR trafficking demonstrating that the correcting effect of roscovitine was independent of CDK inhibition. Competition studies with inhibitors of the ER quality control (ERQC) indicated that roscovitine acts on the calnexin pathway and on the degradation machinery. Roscovitine was shown (i) to partially inhibit the interaction between F508del-CFTR and calnexin by depleting ER Ca(2+) and (ii) to directly inhibit the proteasome activity in a Ca(2+) -independent manner. CONCLUSIONS AND IMPLICATIONS Roscovitine is able to correct the defective function of F508del-CFTR by preventing the ability of the ERQC to interact with and degrade F508del-CFTR via two synergistic but CDK-independent mechanisms. Roscovitine has potential as a pharmacological therapy for CF.
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Affiliation(s)
- C Norez
- Institut de Physiologie et Biologie Cellulaires, Université de Poitiers, Poitiers, France
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9
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New approaches to the synthesis of sildenafil analogues and their enzyme inhibitory activity. Bioorg Med Chem 2015; 23:1421-9. [DOI: 10.1016/j.bmc.2015.02.026] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/11/2015] [Accepted: 02/16/2015] [Indexed: 11/22/2022]
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10
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Lücking U, Jautelat R, Krüger M, Brumby T, Lienau P, Schäfer M, Briem H, Schulze J, Hillisch A, Reichel A, Wengner AM, Siemeister G. The lab oddity prevails: discovery of pan-CDK inhibitor (R)-S-cyclopropyl-S-(4-{[4-{[(1R,2R)-2-hydroxy-1-methylpropyl]oxy}-5-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)sulfoximide (BAY 1000394) for the treatment of cancer. ChemMedChem 2013; 8:1067-85. [PMID: 23671017 DOI: 10.1002/cmdc.201300096] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/19/2013] [Indexed: 11/08/2022]
Abstract
Lead optimization of a high-throughput screening hit led to the rapid identification of aminopyrimidine ZK 304709, a multitargeted CDK and VEGF-R inhibitor that displayed a promising preclinical profile. Nevertheless, ZK 304709 failed in phase I studies due to dose-limited absorption and high inter-patient variability, which was attributed to limited aqueous solubility and off-target activity against carbonic anhydrases. Further lead optimization efforts to address the off-target activity profile finally resulted in the introduction of a sulfoximine group, which is still a rather unusual approach in medicinal chemistry. However, the sulfoximine series of compounds quickly revealed very interesting properties, culminating in the identification of the nanomolar pan-CDK inhibitor BAY 1000394, which is currently being investigated in phase I clinical trials.
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Affiliation(s)
- Ulrich Lücking
- Bayer Pharma AG, Global Drug Discovery, Medicinal Chemistry, 13353 Berlin, Germany.
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11
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The impact of CDK inhibition in human malignancies associated with pronounced defects in apoptosis: advantages of multi-targeting small molecules. Future Med Chem 2012; 4:395-424. [DOI: 10.4155/fmc.12.12] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Malignant cells in chronic lymphocytic leukemia (CLL) and related diseases are heterogeneous and consist primarily of long-lived resting cells in the periphery and a minor subset of dividing cells in proliferating centers. Both cell populations have different molecular signatures that play a major role in determining their sensitivity to therapy. Contemporary approaches to treating CLL are heavily reliant on cytotoxic chemotherapeutics. However, none of the current treatment regimens can be considered curative. Pharmacological CDK inhibitors have extended the repertoire of potential drugs for CLL. Multi-targeted CDK inhibitors affect CDKs involved in regulating both cell cycle progression and transcription. Their interference with transcriptional elongation represses anti-apoptotic proteins and, thus, promotes the induction of apoptosis. Importantly, there is evidence that treatment with CDK inhibitors can overcome resistance to therapy. The pharmacological CDK inhibitors have great potential for use in combination with other therapeutics and represent promising tools for the development of new curative treatments for CLL.
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12
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Żołnierczyk JD, Komina O, Błoński JZ, Borowiak A, Cebula-Obrzut B, Smolewski P, Robak P, Kiliańska ZM, Węsierska-Gądek J. Can ex vivo evaluation (testing) predict the sensitivity of CLL cells to therapy with purine analogs in conjunction with an alkylating agent? A comparison of in vivo and ex vivo responses to treatment. Med Oncol 2011; 29:2111-26. [PMID: 22086735 DOI: 10.1007/s12032-011-0105-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Accepted: 10/28/2011] [Indexed: 12/15/2022]
Abstract
Malfunctions in the regulation of apoptosis cause the accumulation of malignant, long-lived B CD19+/CD5+ cells in chronic lymphocytic leukemia (CLL). The primary goal in CLL therapy is to overcome resistance to apoptosis and efficiently trigger programmed cell death in leukemic cells. This study demonstrated that the in vivo responses of malignant cells from CLL patients after administration of purine analogs (cladribine/fludarabine) with cyclophosphamide vary significantly. For comparative purposes, the sensitivity of leukemic cells obtained from the same CLL patients to conventional purine analogs and the selective CDK inhibitor R-roscovitine (ROSC) was determined, with and without the addition of an alkylating agent, prior to the onset of in vivo therapy. The kinetics and rate of spontaneous and drug-induced apoptosis of CLL cells under ex vivo conditions differed significantly between patients, mirroring the variability observed during in vivo treatment. Interestingly, individual patients' leukemic cells were comparably sensitive to the drugs under both conditions. Of the drugs examined, ROSC exerted the highest therapeutic efficacy under ex vivo conditions. Our results indicate that ex vivo testing might be useful for identifying the most potent first-line therapeutic regimen for specific CLL patients and possibly for the design of therapies tailored for individual CLL patients.
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Affiliation(s)
- Jolanta D Żołnierczyk
- Department of Cytobiochemistry, University of Łódz, Pomorska 141/143, 90-236 Łódz, Poland
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13
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Węsierska-Gądek J, Kramer MP. The impact of multi-targeted cyclin-dependent kinase inhibition in breast cancer cells: clinical implications. Expert Opin Investig Drugs 2011; 20:1611-28. [PMID: 22017180 DOI: 10.1517/13543784.2011.628985] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The progression of the mammalian cell cycle is driven by the transient activation of complexes consisting of cyclins and cyclin-dependent kinases (CDKs). Loss of control over the cell cycle results in accelerated cell division and malignant transformation and can be caused by the upregulation of cyclins, the aberrant activation of CDKs or the inactivation of cellular CDK inhibitors. For these reasons, cell cycle regulators are regarded as very promising therapeutic targets for the treatment of human malignancies. AREAS COVERED This review covers the structures and anti-breast cancer activity of selected pharmacological pan-specific CDK inhibitors. Multi-targeted CDK inhibitors affect CDKs involved in the regulation of both cell cycle progression and transcriptional control. The inhibition of CDK7/CDK9 has a serious impact on the activity of RNA polymerase II; when its carboxy-terminal domain is unphosphorylated, it is unable to recruit the cofactors required for transcriptional elongation, resulting in a global transcriptional block. Multi-targeted inhibition of CDKs represses anti-apoptotic proteins and thus promotes the induction of apoptosis. Moreover, the inhibition of CDK7 in estrogen receptor (ER)-positive breast cancer cells prevents activating phosphorylation of ER-α. EXPERT OPINION These diverse modes of action make multi-targeted CDK inhibitors promising drugs for the treatment of breast cancers.
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Affiliation(s)
- Józefa Węsierska-Gądek
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research, Comprehensive Cancer Center, Cell Cycle Regulation Group, Borschkegasse 8a, 1090 Vienna, Austria.
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Wilson SC, Atrash B, Barlow C, Eccles S, Fischer PM, Hayes A, Kelland L, Jackson W, Jarman M, Mirza A, Moreno J, Nutley BP, Raynaud FI, Sheldrake P, Walton M, Westwood R, Whittaker S, Workman P, McDonald E. Design, synthesis and biological evaluation of 6-pyridylmethylaminopurines as CDK inhibitors. Bioorg Med Chem 2011; 19:6949-65. [PMID: 21982796 DOI: 10.1016/j.bmc.2011.08.051] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 08/22/2011] [Accepted: 08/23/2011] [Indexed: 02/07/2023]
Abstract
The cyclin-dependent kinase (CDK) inhibitor seliciclib (1, CYC202) is in phase II clinical development for the treatment of cancer. Here we describe the synthesis of novel purines with greater solubility, lower metabolic clearance, and enhanced potency versus CDKs. These compounds exhibit novel selectivity profiles versus CDK isoforms. Compound αSβR-21 inhibits CDK2/cyclin E with IC(50)=30 nM, CDK7-cyclin H with IC(50)=1.3 μM, and CDK9-cyclinT with IC(50)=0.11 μM; it (CCT68127) inhibits growth of HCT116 colon cancer cells in vitro with GI(50)=0.7 μM; and shows antitumour activity when dosed p.o. at 50mg/kg to mice bearing HCT116 solid human tumour xenografts.
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Affiliation(s)
- Stuart C Wilson
- Cancer Research UK Cancer Therapeutics Unit, Division of Cancer Therapeutics, The Institute of Cancer Research, Sutton, Surrey, UK
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15
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Węsierska-Gądek J, Gritsch D, Zulehner N, Komina O, Maurer M. Interference with ER-α enhances the therapeutic efficacy of the selective CDK inhibitor roscovitine towards ER-positive breast cancer cells. J Cell Biochem 2011; 112:1103-17. [PMID: 21308739 DOI: 10.1002/jcb.23024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In recent years many risk factors for the development of breast cancer that are linked to estrogens have been identified, and roscovitine (ROSC), a selective cyclin-dependent kinase (CDK) inhibitor, has been shown to be an efficient inhibitor of the proliferation of human breast cancer cells. Therefore, we have examined the possibility that interference with estrogen signaling pathways, using tamoxifen (TAM), a selective estrogen receptor modulator (SERM), could modulate the efficacy of treatment with ROSC. In conjunction with TAM, ROSC exhibited enhanced anti-proliferative activity and CDK inhibition, particularly in estrogen-dependent MCF-7 cells. The interaction between both drugs was synergistic. However, in ER-α-negative cells the interaction was antagonistic. Exposure of MCF-7 cells to ROSC abolished the activating phosphorylation of CDK2 and CDK7 at Ser(164/170). This in turn prevented the phosphorylation of the carboxyl-terminal repeat domain of RNA Polymerase II and ER-α at Ser(118), resulting in the down-regulation of the latter. Concomitantly, wt p53 was strongly activated by phosphorylation at Ser(46). Our results demonstrate that ROSC negatively affects the functional status of ER-α, making it potentially useful in the treatment of estrogen-dependent breast cancer cells.
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Affiliation(s)
- Józefa Węsierska-Gądek
- Cell Cycle Regulation Group, Institute of Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
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Węsierska-Gądek J, Hackl S, Zulehner N, Maurer M, Komina O. Reconstitution of human MCF-7 breast cancer cells with caspase-3 does not sensitize them to action of CDK inhibitors. J Cell Biochem 2011; 112:273-88. [PMID: 21080333 DOI: 10.1002/jcb.22918] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Human MCF-7 breast cancer cells are resistant to pro-apoptotic stimuli due to caspase-3 inactivation. On the other hand, they should be sensitive to agents like selective pharmacological inhibitors of cyclin-dependent kinases (CDKs) that (re)activate p53 tumor suppressor protein because they harbor intact p53 pathways. In this study we examined whether reconstitution of caspase-3 in MCF-7 cells sensitizes them to inhibitors of CDKs, by analyzing the effects of roscovitine (ROSC) and olomoucine (OLO), two closely related selective pharmacological CDK inhibitors, on both mother MCF-7 cells and a secondary mutant line, MCF-7.3.28 that stably expresses human caspase-3. The results show that ROSC is, as expected, much more potent than OLO. Surprisingly; however, ROSC and OLO reduced proliferation of parental MCF-7 cells more strongly than caspase-3-proficient counterparts. Both inhibitors arrest human breast cancer cells at the G(2)-phase of the cell cycle. Analysis of cell-cycle regulators by immunoblotting revealed that ROSC strongly induces p53 protein activity by inducing its phosphorylation at Ser46 in the MCF-7 cells lacking caspase-3, but not in caspase-3-proficient cells. Furthermore, reconstitution of caspase-3 in MCF-7 cells neither elevates the mitochondrial apoptosis rate nor significantly increases caspases activity upon ROSC treatment. However, the stabilization of p53 in response to DNA damaging agents is the same in both caspase negative and positive MCF-7 cells. Cytotoxic agents induce caspase-3-dependent apoptosis in caspase-3-proficient cells. These results indicate that reconstitution of MCF-7 cancer cells with caspase-3 sensitize them to the action of DNA damaging agents but not to ATP-like pharmacological inhibitors of CDKs.
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Affiliation(s)
- Józefa Węsierska-Gądek
- Dept. of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
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Węsierska-Gądek J, Gritsch D, Zulehner N, Komina O, Maurer M. Roscovitine, a selective CDK inhibitor, reduces the basal and estrogen-induced phosphorylation of ER-α in human ER-positive breast cancer cells. J Cell Biochem 2011; 112:761-72. [PMID: 21328450 DOI: 10.1002/jcb.23004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Roscovitine (ROSC), a selective cyclin-dependent kinase (CDK) inhibitor, arrests human estrogen receptor-α (ER-α) positive MCF-7 breast cancer cells in the G(2) phase of the cell cycle and concomitantly induces apoptosis via a p53-dependent pathway. The effect of ROSC is markedly diminished in MCF-7 cells maintained in the presence of estrogen-mimicking compounds. Therefore, we decided to examine whether ROSC has any effect on the functional status of the ER-α transcription factor. Exposure of MCF-7 cells to ROSC abolished the activating phosphorylation of CDK2 and CDK7 in a concentration and time-dependent manner. This inhibition of site-specific modification of CDK7 at Ser164/170 prevented phosphorylation of RNA polymerase II and reduced basal phosphorylation of ER-α at Ser118 in non-stimulated MCF-7 cells (resulting in its down-regulation). In MCF-7 cells, estrogen induced strong phosphorylation of ER-α at Ser118 but not at Ser104/Ser106. ROSC prevented this estrogen-promoted activating modification of ER-α. Furthermore, we sought to determine whether the activity of ROSC could be enhanced by combining it with an anti-estrogen. Tamoxifen (TAM), a selective estrogen receptor modulator (SERM), affected breast cancer cell lines irrespective of their ER status. In combination with ROSC, however, it had a different impact, enhancing G(1) or G(2) arrest. Our results indicate that ROSC prevents the activating phosphorylation of ER-α and that its mode of action is strongly dependent on the cellular context. Furthermore, our data show that ROSC can be combined with anti-estrogen therapy. The inhibitory effect of TAM on ER-negative cancer cells indicates that SERMs crosstalk with other steroid hormone receptors.
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Affiliation(s)
- Józefa Węsierska-Gądek
- Cell Cycle Regulation Group, Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
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Węsierska-Gądek J, Maurer M, Zulehner N, Komina O. Whether to target single or multiple CDKs for therapy? That is the question. J Cell Physiol 2010; 226:341-9. [DOI: 10.1002/jcp.22426] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Synthesis and anticancer activity of some 1,5-diaryl-3-(3,4,5-trihydroxyphenyl)-1H-pyrazolo[4,3-e][1,2,4]triazines. MONATSHEFTE FUR CHEMIE 2010. [DOI: 10.1007/s00706-010-0314-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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