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Devkota R, Small JC, Carbone K, Glass MA, Vetere A, Wagner BK. KD025 Is a Casein Kinase 2 Inhibitor That Protects Against Glucolipotoxicity in β-Cells. Diabetes 2024; 73:585-591. [PMID: 38211571 PMCID: PMC10958584 DOI: 10.2337/db23-0506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/28/2023] [Indexed: 01/13/2024]
Abstract
Glucolipotoxicity (GLT), in which elevated levels of glucose and fatty acids have deleterious effects on β-cell biology, is thought to be one of the major contributors in progression of type 2 diabetes. In search of novel small molecules that protect β-cells against GLT, we previously discovered KD025, an inhibitor of Rho-associated coiled-coil-containing kinase isoform 2 (ROCK2), as a GLT-protective compound in INS-1E cells and dissociated human islets. To further understand the mechanism of action of KD025, we found that pharmacological and genetic inhibition of ROCK2 was not responsible for the protective effects of KD025 against GLT. Instead, kinase profiling revealed that KD025 potently inhibits catalytic subunits of casein kinase 2 (CK2), a constitutively active serine/threonine kinase. We experimentally verified that the inhibition of one of the catalytic subunits of casein kinase 2, CK2A1, but not CK2A2, improved cell viability when challenged with GLT. We conclude that KD025 inhibits CK2 to protect β-cells from GLT. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Ranjan Devkota
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA
| | - Jonnell C. Small
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA
| | - Kaycee Carbone
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA
| | - Michael A. Glass
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA
| | - Amedeo Vetere
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA
| | - Bridget K. Wagner
- Chemical Biology and Therapeutics Science Program, Broad Institute, Cambridge, MA
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Small J, Joblin-Mills A, Carbone K, Kost-Alimova M, Ayukawa K, Khodier C, Dancik V, Clemons PA, Munkacsi AB, Wagner BK. Phenotypic Screening for Small Molecules that Protect β-Cells from Glucolipotoxicity. ACS Chem Biol 2022; 17:1131-1142. [PMID: 35439415 PMCID: PMC9127801 DOI: 10.1021/acschembio.2c00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022]
Abstract
Type 2 diabetes is marked by progressive β-cell failure, leading to loss of β-cell mass. Increased levels of circulating glucose and free fatty acids associated with obesity lead to β-cell glucolipotoxicity. There are currently no therapeutic options to address this facet of β-cell loss in obese type 2 diabetes patients. To identify small molecules capable of protecting β-cells, we performed a high-throughput screen of 20,876 compounds in the rat insulinoma cell line INS-1E in the presence of elevated glucose and palmitate. We found 312 glucolipotoxicity-protective small molecules (1.49% hit rate) capable of restoring INS-1E viability, and we focused on 17 with known biological targets. 16 of the 17 compounds were kinase inhibitors with activity against specific families including but not limited to cyclin-dependent kinases (CDK), PI-3 kinase (PI3K), Janus kinase (JAK), and Rho-associated kinase 2 (ROCK2). 7 of the 16 kinase inhibitors were PI3K inhibitors. Validation studies in dissociated human islets identified 10 of the 17 compounds, namely, KD025, ETP-45658, BMS-536924, AT-9283, PF-03814735, torin-2, AZD5438, CP-640186, ETP-46464, and GSK2126458 that reduced glucolipotoxicity-induced β-cell death. These 10 compounds decreased markers of glucolipotoxicity including caspase activation, mitochondrial depolarization, and increased calcium flux. Together, these results provide a path forward toward identifying novel treatments to preserve β-cell viability in the face of glucolipotoxicity.
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Affiliation(s)
- Jonnell
C. Small
- Chemical
Biology and Therapeutics Science Program, Broad Institute, Cambridge, Massachusetts 02142, United States
- Chemistry
Biology Program, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Aidan Joblin-Mills
- School
of Biological Sciences and Maurice Wilkins Centre for Molecular Biodiscovery, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Kaycee Carbone
- Chemical
Biology and Therapeutics Science Program, Broad Institute, Cambridge, Massachusetts 02142, United States
| | - Maria Kost-Alimova
- Center
for the Development of Therapeutics, Broad
Institute, Cambridge, Massachusetts 02142, United States
| | - Kumiko Ayukawa
- Chemical
Biology and Therapeutics Science Program, Broad Institute, Cambridge, Massachusetts 02142, United States
- JT
Pharmaceuticals Inc., Takatsuki 569-1125, Osaka, Japan
| | - Carol Khodier
- Center
for the Development of Therapeutics, Broad
Institute, Cambridge, Massachusetts 02142, United States
| | - Vlado Dancik
- Chemical
Biology and Therapeutics Science Program, Broad Institute, Cambridge, Massachusetts 02142, United States
| | - Paul A. Clemons
- Chemical
Biology and Therapeutics Science Program, Broad Institute, Cambridge, Massachusetts 02142, United States
| | - Andrew B. Munkacsi
- School
of Biological Sciences and Maurice Wilkins Centre for Molecular Biodiscovery, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Bridget K. Wagner
- Chemical
Biology and Therapeutics Science Program, Broad Institute, Cambridge, Massachusetts 02142, United States
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Pantic D, Carbone K, Polonetskaya A, Santoriello L, Gong J. 48 Threading the Needle: A Review of Lumbar Puncture Success Rates in a Resident-Driven Procedure Team. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Settineri D, Carbone K, Iacurto M. Maize meal supply in finishing bull farms: physical and chemical variability. Italian Journal of Animal Science 2007. [DOI: 10.4081/ijas.2007.1s.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- D. Settineri
- Istituto Sperimentale per la Zootecnia. Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Monterotondo, Italy
| | - K. Carbone
- Istituto Sperimentale per la Zootecnia. Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Monterotondo, Italy
| | - M. Iacurto
- Istituto Sperimentale per la Zootecnia. Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Monterotondo, Italy
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Pace V, Carbone K, Spirito F, Iacurto M, Terzano M, Verna M, Vincenti F, Settineri D. The effects of subterranean clover phytoestrogens on sheep growth, reproduction and carcass characteristics. Meat Sci 2006; 74:616-22. [DOI: 10.1016/j.meatsci.2006.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2005] [Revised: 04/10/2006] [Accepted: 05/08/2006] [Indexed: 10/24/2022]
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Pace V, Carbone K, Spirito F, Terzano G, Verna M, Settineri D. Phytoestrogen content of subterranean clover
related to ewe growth and reproduction. J Anim Feed Sci 2004. [DOI: 10.22358/jafs/74030/2004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Transmyocardial laser revascularization is a new treatment modality for patients with chronic angina that is refractory to traditional management. A laser is used to create full-thickness channels through areas of ischemic myocardium. Transmyocardial laser revascularization is performed in an effort to improve myocardial oxygenation, eliminate or reduce angina, and improve functional status. Transmyocardial laser revascularization currently is undergoing clinical trials. Early results have demonstrated significant reduction in anginal symptoms. Long-term efficacy of transmyocardial laser revascularization remains to be determined.
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Affiliation(s)
- D J Lynn-McHale
- Medical (and Surgical Cardiac) Care Unit, Thomas Jefferson University Hospital, University of Pennsylvania, USA
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Gonzalez-Dunia D, Eddleston M, Mackman N, Carbone K, de la Torre JC. Expression of tissue factor is increased in astrocytes within the central nervous system during persistent infection with borna disease virus. J Virol 1996; 70:5812-20. [PMID: 8709198 PMCID: PMC190596 DOI: 10.1128/jvi.70.9.5812-5820.1996] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Persistent tolerant infection of rats with borna disease virus (BDV) results in a central nervous system (CNS) disease characterized by behavioral abnormalities. These disorders occur without inflammation and widespread cytolysis in the CNS. Therefore, mechanisms other than virally induced destruction of brain cells may explain the CNS disturbance caused by BDV. Previously, we have shown that astrocytes in the CNS express tissue factor (TF). TF functions as the primary cellular initiator of the coagulation protease cascades, resulting in the generation of the protease thrombin. Proteases and their inhibitors play important roles in the development and physiology of the CNS, and altered protease activity has been implicated in the pathophysiology of various neurological diseases. Here, we present evidence that TF expression in the brain is markedly increased during persistent infection with BDV. Persistent infection of cultured astrocytes with BDV also increased TF expression as a result of both increased transcription of the TF gene and stabilization of TF mRNA. We speculate that increased TF expression within the brain parenchyma may lead to increased protease activity in the CNS and contribute to virus-mediated CNS functional impairment by affecting neural cell interactions.
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Affiliation(s)
- D Gonzalez-Dunia
- Department of Neuropharmacology, Scripps Research Institute, La Jolla, California 92037, USA
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Smith CR, Petty BG, Hendrix CW, Kernan WN, Garver PL, Fox K, Beamer A, Carbone K, Threlkeld M, Lietman PS. Ceftriaxone compared with cefotaxime for serious bacterial infections. J Infect Dis 1989; 160:442-7. [PMID: 2668428 DOI: 10.1093/infdis/160.3.442] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Ceftriaxone was compared with cefotaxime for the treatment of serious bacterial infections in a prospective, randomized, double-blind clinical trial. The dose of ceftriaxone was 2 g once a day, and the dose of cefotaxime was 2 g every 4 h. Metronidazole was added if anaerobic infection was suspected. Explicit criteria were used to define infections, clinical response, and adverse effects. Ceftriaxone was given to 88 patients and cefotaxime to 83. The two treatment groups did not differ in types of infection, infecting organisms, and severity of underlying disease. The response rate was 81% (71/88) for ceftriaxone and 80% (66/83) for cefotaxime. The power of the study to detect a 15% difference in response rate at P less than .1 was 90%. The frequency of diarrhea, thrombophlebitis, prothrombin time, prolongation, colonization, and superinfection did not differ between treatment groups. Ceftriaxone 2 g once a day was as safe and effective as cefotaxime 2 g every 4 h for suspected serious bacterial infections.
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Affiliation(s)
- C R Smith
- Division of Clinical Pharmacology and Internal Medicine, Johns Hopkins University, Baltimore, Maryland
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Abstract
We have reported a case of vena caval perforation by a polyurethane dual-lumen subclavian vein catheter unrelated to insertion or subsequent manipulation. This case emphasizes the necessity for constant vigilance while such catheters are in use.
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