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Ouyang Y, Si H, Zhu C, Zhong L, Ma H, Li Z, Xiong H, Liu T, Liu Z, Zhang Z, Zhang ZM, Cai Q. Discovery of 8-(6-Methoxypyridin-3-yl)-1-(4-(piperazin-1-yl)-3-(trifluoromethyl)phenyl)-1,5-dihydro- 4H-[1,2,3]triazolo[4,5- c]quinolin-4-one (CQ211) as a Highly Potent and Selective RIOK2 Inhibitor. J Med Chem 2022; 65:7833-7842. [PMID: 35584513 DOI: 10.1021/acs.jmedchem.2c00271] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
RIOK2 is an atypical kinase implicated in multiple human cancers. Although recent studies establish the role of RIOK2 in ribosome maturation and cell cycle progression, its biological functions remain poorly elucidated, hindering the potential to explore RIOK2 as a therapeutic target. Here, we report the discovery of CQ211, the most potent and selective RIOK2 inhibitor reported so far. CQ211 displays a high binding affinity (Kd = 6.1 nM) and shows excellent selectivity to RIOK2 in both enzymatic and cellular studies. It also exhibits potent proliferation inhibition activity against multiple cancer cell lines and demonstrates promising in vivo efficacy in mouse xenograft models. The crystal structure of RIOK2-CQ211 sheds light on the molecular mechanism of inhibition and informs the subsequent optimization. The study provides a cell-active chemical probe for verifying RIOK2 functions, which may also serve as a leading molecule in the development of therapeutic RIOK2 inhibitors.
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Affiliation(s)
- Yifan Ouyang
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Hongfei Si
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Chengjun Zhu
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Liang Zhong
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Haowen Ma
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Zongyang Li
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Huilan Xiong
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Tongzheng Liu
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Zhong Liu
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Zhang Zhang
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Zhi-Min Zhang
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
| | - Qian Cai
- College of Pharmacy, Jinan University, No. 601 Huangpu Avenue West, Guangzhou 510530, China
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Cerezo EL, Houles T, Lié O, Sarthou MK, Audoynaud C, Lavoie G, Halladjian M, Cantaloube S, Froment C, Burlet-Schiltz O, Henry Y, Roux PP, Henras AK, Romeo Y. RIOK2 phosphorylation by RSK promotes synthesis of the human small ribosomal subunit. PLoS Genet 2021; 17:e1009583. [PMID: 34125833 PMCID: PMC8224940 DOI: 10.1371/journal.pgen.1009583] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/24/2021] [Accepted: 05/05/2021] [Indexed: 11/18/2022] Open
Abstract
Ribosome biogenesis lies at the nexus of various signaling pathways coordinating protein synthesis with cell growth and proliferation. This process is regulated by well-described transcriptional mechanisms, but a growing body of evidence indicates that other levels of regulation exist. Here we show that the Ras/mitogen-activated protein kinase (MAPK) pathway stimulates post-transcriptional stages of human ribosome synthesis. We identify RIOK2, a pre-40S particle assembly factor, as a new target of the MAPK-activated kinase RSK. RIOK2 phosphorylation by RSK stimulates cytoplasmic maturation of late pre-40S particles, which is required for optimal protein synthesis and cell proliferation. RIOK2 phosphorylation facilitates its release from pre-40S particles and its nuclear re-import, prior to completion of small ribosomal subunits. Our results bring a detailed mechanistic link between the Ras/MAPK pathway and the maturation of human pre-40S particles, which opens a hitherto poorly explored area of ribosome biogenesis.
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Affiliation(s)
- Emilie L. Cerezo
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Thibault Houles
- Institute for Research in Immunology and Cancer, Université de Montréal, Montreal, Québec, Canada
| | - Oriane Lié
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Marie-Kerguelen Sarthou
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Charlotte Audoynaud
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Geneviève Lavoie
- Institute for Research in Immunology and Cancer, Université de Montréal, Montreal, Québec, Canada
| | - Maral Halladjian
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Sylvain Cantaloube
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Carine Froment
- Institut de Pharmacologie et Biologie Structurale (IPBS), Université de Toulouse, UPS, CNRS, Toulouse, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et Biologie Structurale (IPBS), Université de Toulouse, UPS, CNRS, Toulouse, France
| | - Yves Henry
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Philippe P. Roux
- Institute for Research in Immunology and Cancer, Université de Montréal, Montreal, Québec, Canada
- Department of Pathology and Cell Biology, Faculty of Medicine, Université de Montréal, Montreal, Québec, Canada
| | - Anthony K. Henras
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Yves Romeo
- Molecular, Cellular and Developmental biology department (MCD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
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3
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Wang CB, Lorente-Macías Á, Wells C, Pickett JE, Picado A, Zuercher WJ, Axtman AD. Towards a RIOK2 chemical probe: cellular potency improvement of a selective 2-(acylamino)pyridine series. RSC Med Chem 2021; 12:129-136. [PMID: 34046605 PMCID: PMC8130602 DOI: 10.1039/d0md00292e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/13/2020] [Indexed: 11/21/2022] Open
Abstract
RIOK2 is an understudied kinase associated with a variety of human cancers including non-small cell lung cancer and glioblastoma. No potent, selective, and cell-active chemical probe currently exists for RIOK2. Such a reagent would expedite re-search into the biological functions of RIOK2 and validate it as a therapeutic target. Herein, we describe the synthesis of naphthyl-pyridine based compounds that have improved cellular activity while maintaining selectivity for RIOK2. While our compounds do not represent RIOK2 chemical probes, they are the best available tool molecules to begin to characterize RIOK2 function in vitro.
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Affiliation(s)
- Christopher B Wang
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | - Álvaro Lorente-Macías
- Departamento de Química Farmacéutica y Orgánica, University of Granada Granada 18071 Spain
| | - Carrow Wells
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | - Julie E Pickett
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | - Alfredo Picado
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | - William J Zuercher
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | - Alison D Axtman
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
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Bailly C. Anticancer Activities and Mechanism of Action of Nagilactones, a Group of Terpenoid Lactones Isolated from Podocarpus Species. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:367-375. [PMID: 33034879 PMCID: PMC7648843 DOI: 10.1007/s13659-020-00268-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/30/2020] [Indexed: 05/03/2023]
Abstract
Nagilactones are tetracyclic natural products isolated from various Podocarpus species. These lactone-based compounds display a range of pharmacological effects, including antifungal, anti-atherosclerosis, anti-inflammatory and anticancer activities reviewed here. The most active derivatives, such as nagilactones C, E and F, exhibit potent anticancer activities against different cancer cell lines and tumor models. A comprehensive analysis of their mechanism of action indicates that their anticancer activity mainly derives from three complementary action: (i) a drug-induced inhibition of cell proliferation coupled with a cell cycle perturbation and induction of apoptosis, (ii) a blockade of the epithelial to mesenchymal cell transition contributing to an inhibition of cancer cell migration and invasion and (iii) a capacity to modulate the PD-L1 immune checkpoint. Different molecular effectors have been implicated in the antitumor activity, chiefly the AP-1 pathway blocked upon activation of the JNK/c-Jun axis. Nag-C is a potent inhibitor of protein synthesis binding to eukaryotic ribosomes and inhibition of different protein kinases, such as RIOK2 and JAK2, has been postulated with Nag-E. The literature survey on nagilactones highlights the therapeutic potential of these little-known terpenoids. The mechanistic analysis also provides useful information for structurally related compounds (podolactones, oidiolactones, inumakilactones) isolated from Podocarpus plants.
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Modi V, Dunbrack RL. A Structurally-Validated Multiple Sequence Alignment of 497 Human Protein Kinase Domains. Sci Rep 2019; 9:19790. [PMID: 31875044 PMCID: PMC6930252 DOI: 10.1038/s41598-019-56499-4] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 11/14/2019] [Indexed: 12/21/2022] Open
Abstract
Studies on the structures and functions of individual kinases have been used to understand the biological properties of other kinases that do not yet have experimental structures. The key factor in accurate inference by homology is an accurate sequence alignment. We present a parsimonious, structure-based multiple sequence alignment (MSA) of 497 human protein kinase domains excluding atypical kinases. The alignment is arranged in 17 blocks of conserved regions and unaligned blocks in between that contain insertions of varying lengths present in only a subset of kinases. The aligned blocks contain well-conserved elements of secondary structure and well-known functional motifs, such as the DFG and HRD motifs. From pairwise, all-against-all alignment of 272 human kinase structures, we estimate the accuracy of our MSA to be 97%. The remaining inaccuracy comes from a few structures with shifted elements of secondary structure, and from the boundaries of aligned and unaligned regions, where compromises need to be made to encompass the majority of kinases. A new phylogeny of the protein kinase domains in the human genome based on our alignment indicates that ten kinases previously labeled as "OTHER" can be confidently placed into the CAMK group. These kinases comprise the Aurora kinases, Polo kinases, and calcium/calmodulin-dependent kinase kinases.
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Affiliation(s)
- Vivek Modi
- Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA, 19111, USA
| | - Roland L Dunbrack
- Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA, 19111, USA.
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