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Silnitsky S, Rubin SJS, Zerihun M, Qvit N. An Update on Protein Kinases as Therapeutic Targets-Part I: Protein Kinase C Activation and Its Role in Cancer and Cardiovascular Diseases. Int J Mol Sci 2023; 24:17600. [PMID: 38139428 PMCID: PMC10743896 DOI: 10.3390/ijms242417600] [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: 11/01/2023] [Revised: 12/10/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Protein kinases are one of the most significant drug targets in the human proteome, historically harnessed for the treatment of cancer, cardiovascular disease, and a growing number of other conditions, including autoimmune and inflammatory processes. Since the approval of the first kinase inhibitors in the late 1990s and early 2000s, the field has grown exponentially, comprising 98 approved therapeutics to date, 37 of which were approved between 2016 and 2021. While many of these small-molecule protein kinase inhibitors that interact orthosterically with the protein kinase ATP binding pocket have been massively successful for oncological indications, their poor selectively for protein kinase isozymes have limited them due to toxicities in their application to other disease spaces. Thus, recent attention has turned to the use of alternative allosteric binding mechanisms and improved drug platforms such as modified peptides to design protein kinase modulators with enhanced selectivity and other pharmacological properties. Herein we review the role of different protein kinase C (PKC) isoforms in cancer and cardiovascular disease, with particular attention to PKC-family inhibitors. We discuss translational examples and carefully consider the advantages and limitations of each compound (Part I). We also discuss the recent advances in the field of protein kinase modulators, leverage molecular docking to model inhibitor-kinase interactions, and propose mechanisms of action that will aid in the design of next-generation protein kinase modulators (Part II).
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Affiliation(s)
- Shmuel Silnitsky
- The Azrieli Faculty of Medicine in the Galilee, Bar-Ilan University, Henrietta Szold St. 8, Safed 1311502, Israel; (S.S.); (M.Z.)
| | - Samuel J. S. Rubin
- Department of Medicine, School of Medicine, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA;
| | - Mulate Zerihun
- The Azrieli Faculty of Medicine in the Galilee, Bar-Ilan University, Henrietta Szold St. 8, Safed 1311502, Israel; (S.S.); (M.Z.)
| | - Nir Qvit
- The Azrieli Faculty of Medicine in the Galilee, Bar-Ilan University, Henrietta Szold St. 8, Safed 1311502, Israel; (S.S.); (M.Z.)
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Jiang H, Gong R, Wu Y. miR‑129‑5p inhibits oxidized low‑density lipoprotein‑induced A7r5 cell viability and migration by targeting HMGB1 and the PI3k/Akt signaling pathway. Exp Ther Med 2022; 23:243. [PMID: 35222720 PMCID: PMC8815026 DOI: 10.3892/etm.2022.11168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 08/17/2021] [Indexed: 11/28/2022] Open
Abstract
The mechanisms underlying gene therapy for the treatment of cardiovascular diseases remain to be elucidated. microRNAs (miRs) have been recognized as key regulators in vascular smooth muscle cells, which are involved in the formation of atherosclerosis. The present study aimed to explore the role of miR-129-5p in the regulation of high-mobility group box 1 protein (HMGB1) and the PI3k/Akt signaling pathway, and further explore the role of miR-129-5p in the viability and migration of A7r5 cells induced by oxidized low-density lipoprotein (ox-LDL). Cell viability, viability and migration were determined using Cell Counting Kit-8, colony formation, wound healing and Transwell assays. The expression levels of miR-129-5p and HMGB1 were detected using reverse transcription-quantitative PCR and western blotting. A dual-luciferase assay was used to confirm the association between miR-129-5p and HMGB1. RT-qPCR results in the present study demonstrated that the expression levels of miR-129-5p in A7r5 cells induced by ox-LDL were significantly decreased, compared with the control cells. Moreover, the viability and migration of A7r5 cells induced by ox-LDL were increased compared with control group. Western blot and RT-qPCR results showed that miR-129-5p decreased the expression of HMGB1 in A7r5 cells compared with control group. The present results demonstrated that miR-129-5p inhibited the viability, viability and migration of A7r5 cells induced by ox-LDL, and directly targeted HMGB1 to regulate the PI3k/Akt signaling pathway. In conclusion, miR-129-5p inhibited the PI3k/Akt signaling pathway by directly targeting HMGB1, and reduced the viability, viability and migration of A7r5 cells induced by ox-LDL.
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Affiliation(s)
- Hongfei Jiang
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ren Gong
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yanqing Wu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Sudhir R, Jaafar N, Du Q, Sukhodub A, Jovanović S, Kreouzi M, Jovanović A. Increase in cardioprotective SUR2A does not alter heart rate and heart rate regulation by physical activity and diurnal rhythm. J Basic Clin Physiol Pharmacol 2021; 33:619-624. [PMID: 34870381 DOI: 10.1515/jbcpp-2021-0289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 11/03/2021] [Indexed: 12/21/2022]
Abstract
OBJECTIVES SUR2A is an ABC protein serving as a regulatory subunit of ATP-sensitive (KATP) channels. An increase in SUR2A levels is cardioprotective and it is a potential therapeutic strategy against ischaemic heart disease, heart failure and other diseases. However, whether overexpression of this protein has any adverse effects is yet to be fully understood. Here, we examined the heart rate and the heart rate diurnal variation in mice overexpressing SUR2A (SUR2A+) and their littermate controls (WT) using ECG telemetry that was continuously recorded for 14 days (days 8-23 post-radiotransmitter implantation). METHODS Using SigmaPlot 14.0 and Microsoft Excel, Area Under the Curve (AUC) for each parameter was calculated and plotted in a graph. RESULTS Both WT and SUR2A+ mice were more physically active during nights and there were no significant differences between two phenotypes. Physical activity was associated with increased heart rate in both phenotypes, but there were no differences in heart rate between phenotypes irrespective of physical activity or time of the day. A diurnal heart rate variation was preserved in the SUR2A+ mice. As area under the curve (AUC) analysis has the potential to reveal differences that are invisible with other statistical methods, we compared AUC of heart rate in SUR2A+ and WT mice. This analysis did not yield anything different from traditional analysis. CONCLUSIONS We conclude that increased SUR2A levels are not associated with changes in physical activity, heart rate and/or circadian rhythm influence on the heart rate. This lack of adverse effects supports a notion that manipulation with SUR2A levels is a promising cardioprotective strategy.
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Affiliation(s)
- Rajni Sudhir
- Department of Molecular and Clinical Medicine, University of Dundee, Dundee, Scotland, UK
| | - Nadim Jaafar
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
| | - Qingyou Du
- Department of Molecular and Clinical Medicine, University of Dundee, Dundee, Scotland, UK
| | - Andriy Sukhodub
- Department of Molecular and Clinical Medicine, University of Dundee, Dundee, Scotland, UK
| | - Sofija Jovanović
- Department of Molecular and Clinical Medicine, University of Dundee, Dundee, Scotland, UK
| | - Magdalini Kreouzi
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
| | - Aleksandar Jovanović
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus.,Center for Neuroscience and Integrative Brain Research (CENIBRE), University of Nicosia Medical School, Nicosia, Cyprus
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Chavva H, Brazeau DA, Denvir J, Primerano DA, Fan J, Seeley SL, Rorabaugh BR. Methamphetamine-induced changes in myocardial gene transcription are sex-dependent. BMC Genomics 2021; 22:259. [PMID: 33845768 PMCID: PMC8042975 DOI: 10.1186/s12864-021-07561-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 03/26/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Prior work demonstrated that female rats (but not their male littermates) exposed to methamphetamine become hypersensitive to myocardial ischemic injury. Importantly, this sex-dependent effect persists following 30 days of subsequent abstinence from the drug, suggesting that it may be mediated by long term changes in gene expression that are not rapidly reversed following discontinuation of methamphetamine use. The goal of the present study was to determine whether methamphetamine induces sex-dependent changes in myocardial gene expression and whether these changes persist following subsequent abstinence from methamphetamine. RESULTS Methamphetamine induced changes in the myocardial transcriptome were significantly greater in female hearts than male hearts both in terms of the number of genes affected and the magnitude of the changes. The largest changes in female hearts involved genes that regulate the circadian clock (Dbp, Per3, Per2, BMal1, and Npas2) which are known to impact myocardial ischemic injury. These genes were unaffected by methamphetamine in male hearts. All changes in gene expression identified at day 11 returned to baseline by day 30. CONCLUSIONS These data demonstrate that female rats are more sensitive than males to methamphetamine-induced changes in the myocardial transcriptome and that methamphetamine does not induce changes in myocardial transcription that persist long term after exposure to the drug has been discontinued.
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Affiliation(s)
- Hasitha Chavva
- Department of Pharmaceutical Science, Marshall University School of Pharmacy, 1 John Marshall Drive, Huntington, WV, 25755, USA
| | - Daniel A Brazeau
- Department of Pharmacy Practice, Administration, and Research, Marshall University School of Pharmacy, 1 John Marshall Drive, Huntington, WV, 25755, USA
- Department of Biomedical Science, Marshall University School of Medicine, 1 John Marshall Drive, Huntington, WV, 25755, USA
| | - James Denvir
- Department of Biomedical Science, Marshall University School of Medicine, 1 John Marshall Drive, Huntington, WV, 25755, USA
| | - Donald A Primerano
- Department of Biomedical Science, Marshall University School of Medicine, 1 John Marshall Drive, Huntington, WV, 25755, USA
| | - Jun Fan
- Department of Biomedical Science, Marshall University School of Medicine, 1 John Marshall Drive, Huntington, WV, 25755, USA
| | - Sarah L Seeley
- Department of Pharmaceutical and Biomedical Sciences, Ohio Northern University College of Pharmacy, 525 South Main Street, Ada, OH, 45810, USA
| | - Boyd R Rorabaugh
- Department of Pharmaceutical Science, Marshall University School of Pharmacy, 1 John Marshall Drive, Huntington, WV, 25755, USA.
- Department of Biomedical Science, Marshall University School of Medicine, 1 John Marshall Drive, Huntington, WV, 25755, USA.
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Roy SK, Das P, Mondal A, Mandal A, Kuotsu K. Design, formulation and evaluation of multiparticulate time programmed system of ramipril for pulsed release: An approach in the management of early morning surge in blood pressure. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Approaching Gravity as a Continuum Using the Rat Partial Weight-Bearing Model. Life (Basel) 2020; 10:life10100235. [PMID: 33049988 PMCID: PMC7599661 DOI: 10.3390/life10100235] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 09/30/2020] [Accepted: 10/03/2020] [Indexed: 12/12/2022] Open
Abstract
For decades, scientists have relied on animals to understand the risks and consequences of space travel. Animals remain key to study the physiological alterations during spaceflight and provide crucial information about microgravity-induced changes. While spaceflights may appear common, they remain costly and, coupled with limited cargo areas, do not allow for large sample sizes onboard. In 1979, a model of hindlimb unloading (HU) was successfully created to mimic microgravity and has been used extensively since its creation. Four decades later, the first model of mouse partial weight-bearing (PWB) was developed, aiming at mimicking partial gravity environments. Return to the Lunar surface for astronauts is now imminent and prompted the need for an animal model closer to human physiology; hence in 2018, our laboratory created a new model of PWB for adult rats. In this review, we will focus on the rat model of PWB, from its conception to the current state of knowledge. Additionally, we will address how this new model, used in conjunction with HU, will help implement new paradigms allowing scientists to anticipate the physiological alterations and needs of astronauts. Finally, we will discuss the outstanding questions and future perspectives in space research and propose potential solutions using the rat PWB model.
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