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Alsagaby SA, Iqbal D, Ahmad I, Patel H, Mir SA, Madkhali YA, Oyouni AAA, Hawsawi YM, Alhumaydhi FA, Alshehri B, Alturaiki W, Alanazi B, Mir MA, Al Abdulmonem W. In silico investigations identified Butyl Xanalterate to competently target CK2α (CSNK2A1) for therapy of chronic lymphocytic leukemia. Sci Rep 2022; 12:17648. [PMID: 36271116 PMCID: PMC9587039 DOI: 10.1038/s41598-022-21546-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/28/2022] [Indexed: 01/18/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is an incurable malignancy of B-cells. In this study, bioinformatics analyses were conducted to identify possible pathogenic roles of CK2α, which is a protein encoded by CSNK2A1, in the progression and aggressiveness of CLL. Furthermore, various computational tools were used to search for a competent inhibitor of CK2α from fungal metabolites that could be proposed for CLL therapy. In CLL patients, high-expression of CSNK2A1 was associated with early need for therapy (n = 130, p < 0.0001) and short overall survival (OS; n = 107, p = 0.005). Consistently, bioinformatics analyses showed CSNK2A1 to associate with/play roles in CLL proliferation and survival-dependent pathways. Furthermore, PPI network analysis identified interaction partners of CK2α (PPI enrichment p value = 1 × 10-16) that associated with early need for therapy (n = 130, p < 0.003) and have been known to heavily impact on the progression of CLL. These findings constructed a rational for targeting CK2α for CLL therapy. Consequently, computational analyses reported 35 fungal metabolites out of 5820 (filtered from 19,967 metabolites) to have lower binding energy (ΔG: - 10.9 to - 11.7 kcal/mol) and better binding affinity (Kd: 9.77 × 107 M-1 to 3.77 × 108 M-1) compared with the native ligand (ΔG: - 10.8, Kd: 8.3 × 107 M--1). Furthermore, molecular dynamics simulation study established that Butyl Xanalterate-CK2α complex continuously remained stable throughout the simulation time (100 ns). Moreover, Butyl Xanalterate interacted with most of the catalytic residues, where complex was stabilized by more than 65% hydrogen bond interactions, and a significant hydrophobic interaction with residue Phe113. Here, high-expression of CSNK2A1 was implicated in the progression and poor prognosis of CLL, making it a potential therapeutic target in the disease. Butyl Xanalterate showed stable and strong interactions with CK2α, thus we propose it as a competitive inhibitor of CK2α for CLL therapy.
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Affiliation(s)
- Suliman A. Alsagaby
- grid.449051.d0000 0004 0441 5633Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, 11952 Kingdom of Saudi Arabia
| | - Danish Iqbal
- grid.449051.d0000 0004 0441 5633Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, 11952 Kingdom of Saudi Arabia
| | - Iqrar Ahmad
- grid.412233.50000 0001 0641 8393Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra 425405 India
| | - Harun Patel
- grid.412233.50000 0001 0641 8393Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra 425405 India
| | - Shabir Ahmad Mir
- grid.449051.d0000 0004 0441 5633Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, 11952 Kingdom of Saudi Arabia
| | - Yahya Awaji Madkhali
- grid.449051.d0000 0004 0441 5633Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, 11952 Kingdom of Saudi Arabia
| | - Atif Abdulwahab A. Oyouni
- grid.440760.10000 0004 0419 5685Department of Biology, Faculty of Sciences, University of Tabuk, Tabuk, Kingdom of Saudi Arabia ,grid.440760.10000 0004 0419 5685Genome and Biotechnology Unit, Faculty of Sciences, University of Tabuk, Tabuk, Kingdom of Saudi Arabia
| | - Yousef M. Hawsawi
- grid.415310.20000 0001 2191 4301Research Center, King Faisal Specialist Hospital and Research Center, P.O. Box 40047, Jeddah, 21499 Kingdom of Saudi Arabia ,grid.411335.10000 0004 1758 7207College of Medicine, Al-Faisal University, P.O. Box 50927, Riyadh, 11533 Kingdom of Saudi Arabia
| | - Fahad A. Alhumaydhi
- grid.412602.30000 0000 9421 8094Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Bader Alshehri
- grid.449051.d0000 0004 0441 5633Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, 11952 Kingdom of Saudi Arabia
| | - Wael Alturaiki
- grid.449051.d0000 0004 0441 5633Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, AL-Majmaah, 11952 Kingdom of Saudi Arabia
| | - Bader Alanazi
- grid.415277.20000 0004 0593 1832Biomedical Research Administration, Research Center, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia ,Prince Mohammed bin Abdulaziz Medical City, AlJouf, Kingdom of Saudi Arabia
| | - Manzoor Ahmad Mir
- grid.412997.00000 0001 2294 5433Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar, India
| | - Waleed Al Abdulmonem
- grid.412602.30000 0000 9421 8094Department of Pathology, College of Medicine, Qassim University, Qassim, Kingdom of Saudi Arabia
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Jehle S, Kunowska N, Benlasfer N, Woodsmith J, Weber G, Wahl MC, Stelzl U. A human kinase yeast array for the identification of kinases modulating phosphorylation-dependent protein-protein interactions. Mol Syst Biol 2022; 18:e10820. [PMID: 35225431 PMCID: PMC8883442 DOI: 10.15252/msb.202110820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 12/11/2022] Open
Abstract
Protein kinases play an important role in cellular signaling pathways and their dysregulation leads to multiple diseases, making kinases prime drug targets. While more than 500 human protein kinases are known to collectively mediate phosphorylation of over 290,000 S/T/Y sites, the activities have been characterized only for a minor, intensively studied subset. To systematically address this discrepancy, we developed a human kinase array in Saccharomyces cerevisiae as a simple readout tool to systematically assess kinase activities. For this array, we expressed 266 human kinases in four different S. cerevisiae strains and profiled ectopic growth as a proxy for kinase activity across 33 conditions. More than half of the kinases showed an activity-dependent phenotype across many conditions and in more than one strain. We then employed the kinase array to identify the kinase(s) that can modulate protein-protein interactions (PPIs). Two characterized, phosphorylation-dependent PPIs with unknown kinase-substrate relationships were analyzed in a phospho-yeast two-hybrid assay. CK2α1 and SGK2 kinases can abrogate the interaction between the spliceosomal proteins AAR2 and PRPF8, and NEK6 kinase was found to mediate the estrogen receptor (ERα) interaction with 14-3-3 proteins. The human kinase yeast array can thus be used for a variety of kinase activity-dependent readouts.
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Affiliation(s)
- Stefanie Jehle
- Otto-Warburg-Laboratory, Max-Planck-Institute for Molecular Genetics (MPIMG), Berlin, Germany
| | - Natalia Kunowska
- Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Nouhad Benlasfer
- Otto-Warburg-Laboratory, Max-Planck-Institute for Molecular Genetics (MPIMG), Berlin, Germany
| | - Jonathan Woodsmith
- Otto-Warburg-Laboratory, Max-Planck-Institute for Molecular Genetics (MPIMG), Berlin, Germany
- Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Gert Weber
- Institut für Chemie und Biochemie, Freie Universität, Berlin, Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie, Macromolecular Crystallography, Berlin, Germany
| | - Markus C Wahl
- Institut für Chemie und Biochemie, Freie Universität, Berlin, Germany
| | - Ulrich Stelzl
- Otto-Warburg-Laboratory, Max-Planck-Institute for Molecular Genetics (MPIMG), Berlin, Germany
- Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
- Field of Excellence BioHealth, University of Graz and BioTechMed-Graz, Graz, Austria
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Wang X, Gupta P, Fairbanks J, Hansen D. Protein kinase CK2 both promotes robust proliferation and inhibits the proliferative fate in the C. elegans germ line. Dev Biol 2014; 392:26-41. [PMID: 24824786 DOI: 10.1016/j.ydbio.2014.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 04/02/2014] [Accepted: 05/02/2014] [Indexed: 11/18/2022]
Abstract
Stem cells are capable of both self-renewal (proliferation) and differentiation. Determining the regulatory mechanisms controlling the balance between stem cell proliferation and differentiation is not only an important biological question, but also holds the key for using stem cells as therapeutic agents. The Caenorhabditis elegans germ line has emerged as a valuable model to study the molecular mechanisms controlling stem cell behavior. In this study, we describe a large-scale RNAi screen that identified kin-10, which encodes the β subunit of protein kinase CK2, as a novel factor regulating stem cell proliferation in the C. elegans germ line. While a loss of kin-10 in an otherwise wild-type background results in a decrease in the number of proliferative cells, loss of kin-10 in sensitized genetic backgrounds results in a germline tumor. Therefore, kin-10 is not only necessary for robust proliferation, it also inhibits the proliferative fate. We found that kin-10's regulatory role in inhibiting the proliferative fate is carried out through the CK2 holoenzyme, rather than through a holoenzyme-independent function, and that it functions downstream of GLP-1/Notch signaling. We propose that a loss of kin-10 leads to a defect in CK2 phosphorylation of its downstream targets, resulting in abnormal activity of target protein(s) that are involved in the proliferative fate vs. differentiation decision. This eventually causes a shift towards the proliferative fate in the stem cell fate decision.
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Affiliation(s)
- Xin Wang
- Department of Biological Sciences, University of Calgary, 2500 University Drive, Calgary, Alberta, Canada T2N 1N4
| | - Pratyush Gupta
- Department of Biological Sciences, University of Calgary, 2500 University Drive, Calgary, Alberta, Canada T2N 1N4
| | - Jared Fairbanks
- Department of Biological Sciences, University of Calgary, 2500 University Drive, Calgary, Alberta, Canada T2N 1N4
| | - Dave Hansen
- Department of Biological Sciences, University of Calgary, 2500 University Drive, Calgary, Alberta, Canada T2N 1N4.
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