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Zhang W, Lin W, Zeng X, Zhang M, Chen Q, Tang Y, Sun J, Liang B, Zha L, Yu Z. FUT8-Mediated Core Fucosylation Promotes the Pulmonary Vascular Remodeling in Pulmonary Arterial Hypertension. Aging Dis 2023; 14:1927-1944. [PMID: 37196106 PMCID: PMC10529761 DOI: 10.14336/ad.2023.0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/18/2023] [Indexed: 05/19/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive cardiopulmonary disease with unclear underlying molecular mechanisms and limited therapeutic options. This study aimed to explore the role of core fucosylation and the only glycosyltransferase FUT8 in PAH. We observed increased core fucosylation in a monocrotaline (MCT)-induced PAH rat model and isolated rat pulmonary artery smooth muscle cells (PASMCs) treated with platelet-derived growth factor-BB (PDGF-BB). We found that 2-fluorofucose (2FF), a drug used to inhibit core fucosylation, improved hemodynamics and pulmonary vascular remodeling in MCT-induced PAH rats. In vitro, 2FF effectively restrains the proliferation, migration, and phenotypic switching of PASMCs and promotes apoptosis. Compared with controls, serum FUT8 concentration in PAH patients and MCT-induced rats was significantly elevated. FUT8 expression appeared increased in the lung tissues of PAH rats, and the co-localization of FUT8 with α-SMA was also observed. SiRNA was used to knockdown FUT8 in PASMCs (siFUT8). After effectively silencing FUT8 expression, phenotypic changes induced in PASMCs by PDGF-BB stimulation were alleviated. FUT8 activated the AKT pathway, while the admission of AKT activator SC79 could partially counteract the negative effect of siFUT8 on the proliferation, apoptotic resistance, and phenotypic switching of PASMCs, which may be involved in the core fucosylation of vascular endothelial growth factor receptor (VEGFR). Our research confirmed the critical role of FUT8 and its mediated core fucosylation in pulmonary vascular remodeling in PAH, providing a potential novel therapeutic target for PAH.
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Affiliation(s)
- Wen Zhang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenchao Lin
- Department of nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaofang Zeng
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mengqiu Zhang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Chen
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yiyang Tang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jing Sun
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Benhui Liang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lihuang Zha
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiang Ya), Changsha, Hunan, China
| | - Zaixin Yu
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiang Ya), Changsha, Hunan, China
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Yamada M, Azuma K, Takizawa I, Ejima Y, Yamano M, Satoh K, Doi T, Ueda H, Tokuyama H. Efficient and Scalable Asymmetric Total Synthesis of (−)-Emetine with Pharmaceutical Grade Quality; First Multigram Scale Synthesis. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Masatoshi Yamada
- Chemical Research and Development, SPERA PHARMA, Inc., 17-85, Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-0024, Japan
| | - Kazuki Azuma
- Chemical Research and Development, SPERA PHARMA, Inc., 17-85, Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-0024, Japan
| | - Iori Takizawa
- Chemical Research and Development, SPERA PHARMA, Inc., 17-85, Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-0024, Japan
| | - Yuki Ejima
- Chemical Research and Development, SPERA PHARMA, Inc., 17-85, Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-0024, Japan
| | - Mitsuhisa Yamano
- Chemical Research and Development, SPERA PHARMA, Inc., 17-85, Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-0024, Japan
| | - Kimio Satoh
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, 1-1, Seiryo-machi, Aoba-ku, Sendai 980-0872, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hirofumi Ueda
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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3
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Spirin P, Shyrokova E, Vedernikova V, Lebedev T, Prassolov V. Emetine in Combination with Chloroquine Induces Oncolytic Potential of HIV-1-Based Lentiviral Particles. Cells 2022; 11:cells11182829. [PMID: 36139404 PMCID: PMC9497060 DOI: 10.3390/cells11182829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Chloroquine and Emetine are drugs used to treat human parasitic infections. In addition, it has been shown that these drugs have an antiviral effect. Both drugs were also found to cause a suppressive effect on the growth of cancer cells of different origins. Here, using the replication-deficient HIV-1-based lentiviral vector particles, we evaluated the ability of the combination of these drugs to reduce viral transduction efficiency. We showed that these drugs act synergistically to decrease cancer cell growth when added in combination with medium containing lentiviral particles. We found that the combination of these drugs with lentiviral particles decreases the viability of treated cells. Taken together, we state the oncolytic potential of the medium containing HIV-1-based particles provoked by the combination of Chloroquine and Emetine.
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Affiliation(s)
- Pavel Spirin
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
- Correspondence:
| | - Elena Shyrokova
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, Institutskiy per. 9, 141701 Dolgoprudny, Russia
| | - Valeria Vedernikova
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, Institutskiy per. 9, 141701 Dolgoprudny, Russia
| | - Timofey Lebedev
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
| | - Vladimir Prassolov
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, 119991 Moscow, Russia
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4
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Valipour M, Irannejad H, Emami S. Application of emetine in SARS-CoV-2 treatment: regulation of p38 MAPK signaling pathway for preventing emetine-induced cardiac complications. Cell Cycle 2022; 21:2379-2386. [DOI: 10.1080/15384101.2022.2100575] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Mehdi Valipour
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamid Irannejad
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeed Emami
- Department of Medicinal Chemistry and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
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Valipour M. Different Aspects of Emetine's Capabilities as a Highly Potent SARS-CoV-2 Inhibitor against COVID-19. ACS Pharmacol Transl Sci 2022; 5:387-399. [PMID: 35702393 PMCID: PMC9159504 DOI: 10.1021/acsptsci.2c00045] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Indexed: 01/18/2023]
Abstract
In the global movement to find the appropriate agents to fight the coronavirus disease of 2019 (COVID-19), emetine is one of the strongest anti-SARS-CoV-2 compounds with sub-micromolar EC50 values, identified in several studies and high-throughput screening efforts. The reported anti-SARS-CoV-2 mechanisms indicate the effect of this compound on both virus-based and host-based targets. In addition to having excellent antiviral effects, emetine can relieve COVID-19 patients by reducing inflammation through inhibitory activity against NF-κB by the mechanism of IκBα phosphorylation inhibition; it can also limit the lipopolysaccharide-induced expression of pro-inflammatory cytokines TNFα, IL-1β, and IL-6. Emetine also can well reduce pulmonary arterial hypertension as an important COVID-19 complication by modulating a variety of cellular processes such as the Rho-kinase/CyPA/Bsg signaling pathway. The therapeutic value of emetine for combating COVID-19 was highlighted when in vivo pharmacokinetic studies showed that the concentration of this compound in the lungs increases significantly higher than the EC50 of the drug. Despite its valuable therapeutic effects, emetine has some cardiotoxic effects that limit its use in high doses. However, high therapeutic capabilities make emetine a valuable lead compound that can be used for the design and development of less toxic anti-COVID-19 agents in the future. This Review provides a collection of information on the capabilities of emetine and its potential for the treatment of COVID-19, along with structural analysis which could be used for further research in the future.
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Affiliation(s)
- Mehdi Valipour
- Department of Medicinal Chemistry,
Faculty of Pharmacy, Mazandaran University
of Medical Sciences, 48175-866 Sari, Iran
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6
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Satoh K. Caspase-8 Promotes the Development of Pulmonary Hypertension. Arterioscler Thromb Vasc Biol 2022; 42:689-690. [PMID: 35477276 DOI: 10.1161/atvbaha.122.317727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Kimio Satoh
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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7
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Lu M, Chen LY, Gairhe S, Mazer AJ, Anderson SA, Nelson JN, Noguchi A, Siddique MAH, Dougherty EJ, Zou Y, Johnston KA, Yu ZX, Wang H, Wang S, Sun J, Solomon SB, Vanderpool RR, Solomon MA, Danner RL, Elinoff JM. Mineralocorticoid receptor antagonist treatment of established pulmonary arterial hypertension improves interventricular dependence in the SU5416-hypoxia rat model. Am J Physiol Lung Cell Mol Physiol 2022; 322:L315-L332. [PMID: 35043674 PMCID: PMC8858673 DOI: 10.1152/ajplung.00238.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Treatment with mineralocorticoid receptor (MR) antagonists beginning at the outset of disease, or early thereafter, prevents pulmonary vascular remodeling in preclinical models of pulmonary arterial hypertension (PAH). However, the efficacy of MR blockade in established disease, a more clinically relevant condition, remains unknown. Therefore, we investigated the effectiveness of two MR antagonists, eplerenone (EPL) and spironolactone (SPL), after the development of severe right ventricular (RV) dysfunction in the rat SU5416-hypoxia (SuHx) PAH model. Cardiac magnetic resonance imaging (MRI) in SuHx rats at the end of week 5, before study treatment, confirmed features of established disease including reduced RV ejection fraction and RV hypertrophy, pronounced septal flattening with impaired left ventricular filling and reduced cardiac index. Five weeks of treatment with either EPL or SPL improved left ventricular filling and prevented the further decline in cardiac index compared with placebo. Interventricular septal displacement was reduced by EPL whereas SPL effects were similar, but not significant. Although MR antagonists did not significantly reduce pulmonary artery pressure or vessel remodeling in SuHx rats with established disease, animals with higher drug levels had lower pulmonary pressures. Consistent with effects on cardiac function, EPL treatment tended to suppress MR and proinflammatory gene induction in the RV. In conclusion, MR antagonist treatment led to modest, but consistent beneficial effects on interventricular dependence after the onset of significant RV dysfunction in the SuHx PAH model. These results suggest that measures of RV structure and/or function may be useful endpoints in clinical trials of MR antagonists in patients with PAH.
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Affiliation(s)
- Mengyun Lu
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Li-Yuan Chen
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Salina Gairhe
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Adrien J. Mazer
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Stasia A. Anderson
- 2Animal MRI Core Facility, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Jasmine N.H. Nelson
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Audrey Noguchi
- 3Murine Phenotyping Core, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | | | - Edward J. Dougherty
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Yvette Zou
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Kathryn A. Johnston
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Zu-Xi Yu
- 4Pathology Core Facility, National Heart, Lung, and Blood
Institute, National Institutes of Health, Bethesda, Maryland
| | - Honghui Wang
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Shuibang Wang
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Junfeng Sun
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Steven B. Solomon
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Rebecca R. Vanderpool
- 6Department of Medicine and Biomedical Engineering, University of Arizona College of Medicine, Tucson, Arizona
| | - Michael A. Solomon
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland,5Cardiology Branch, National Heart, Lung, and Blood
Institute, National Institutes of Health, Bethesda, Maryland
| | - Robert L. Danner
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Jason M. Elinoff
- 1Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
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8
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Zhang J, Liu J, Xu S, Yu X, Zhang Y, Li X, Zhang L, Yang J, Xing X. Bioinformatics analyses of the pathogenesis and new biomarkers of chronic obstructive pulmonary disease. Medicine (Baltimore) 2021; 100:e27737. [PMID: 34797299 PMCID: PMC8601278 DOI: 10.1097/md.0000000000027737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/21/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is one of the major cause of global death. The purpose of our analysis was to detect a more reliable biomarker and small-molecule drug candidates and to identify the precise mechanisms involved in COPD. METHODS Three data sets were downloaded from the Gene Expression Omnibus database and analysed by Gene Expression Omnibus 2R. Functional enrichment analyses were performed by Metascape. We use the STRING data to build a protein-protein interaction network. The targets of differentially expressed microRNA (DE miRNA) were predicted by the miRWalk database. Small-molecule drugs were predicted on connectivity map. RESULTS A total of 181 differentially expressed genes and 35 DE miRNAs were confirmed. The protein-protein interaction network including all integrated differentially expressed genes was constructed, and 4 modules were filtrated. The module genes were relative to immune, inflammatory and oxidative stress functions according to a pathway analysis. The top 20 key genes were screened. Among the DE miRNAs found to be regulating key genes, miR-194-3p, MiR-502-5p, MiR-5088-5p, MiR-3127-5p, and miR-23a-5p might be the most significant due to their high number of connecting nodes in COPD. In addition, cephaeline, emetine, gabapentin, and amrinone were found to be potential drugs to treat COPD patients. CONCLUSION Our study suggests that miR-194-3p, miR-502-5p, and miR-23a-5p might participate in the nosogenesis of COPD. In addition, 4 potential small-molecule drugs were considered potentially useful for treating COPD patients.
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Affiliation(s)
- Jihua Zhang
- Department of Respiratory Medicine, The People's Hospital of Yuxi City, The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China
| | - Jie Liu
- The graduate School, Kunming Medical University, Kunming, Yunnan, China
| | - Shuanglan Xu
- The graduate School, Kunming Medical University, Kunming, Yunnan, China
| | - Xiaochao Yu
- The graduate School, Kunming Medical University, Kunming, Yunnan, China
| | - Yi Zhang
- Department of Respiratory Medicine, The People's Hospital of Yuxi City, The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China
| | - Xiao Li
- Department of Respiratory Medicine, The People's Hospital of Yuxi City, The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China
| | - Liqiong Zhang
- Department of Respiratory Medicine, The People's Hospital of Yuxi City, The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China
| | - Jiao Yang
- First Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiqian Xing
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People's Hospital of Yunnan Province, Kunming, Yunnan, China
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9
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Hypoxia and the integrated stress response promote pulmonary hypertension and preeclampsia: Implications in drug development. Drug Discov Today 2021; 26:2754-2773. [PMID: 34302972 DOI: 10.1016/j.drudis.2021.07.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 03/31/2021] [Accepted: 07/14/2021] [Indexed: 11/21/2022]
Abstract
Chronic hypoxia is a common cause of pulmonary hypertension, preeclampsia, and intrauterine growth restriction (IUGR). The molecular mechanisms underlying these diseases are not completely understood. Chronic hypoxia may induce the generation of reactive oxygen species (ROS) in mitochondria, promote endoplasmic reticulum (ER) stress, and result in the integrated stress response (ISR) in the pulmonary artery and uteroplacental tissues. Numerous studies have implicated hypoxia-inducible factors (HIFs), oxidative stress, and ER stress/unfolded protein response (UPR) in the development of pulmonary hypertension, preeclampsia and IUGR. This review highlights the roles of HIFs, mitochondria-derived ROS and UPR, as well as their interplay, in the pathogenesis of pulmonary hypertension and preeclampsia, and their implications in drug development.
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10
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Lee MC, Chen YK, Tsai-Wu JJ, Hsu YJ, Lin BR. Zinc supplementation augments the suppressive effects of repurposed NF-κB inhibitors on ACE2 expression in human lung cell lines. Life Sci 2021; 280:119752. [PMID: 34171382 PMCID: PMC8219909 DOI: 10.1016/j.lfs.2021.119752] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 06/06/2021] [Accepted: 06/14/2021] [Indexed: 12/11/2022]
Abstract
Aims Angiotensin-converting enzyme 2 (ACE2) is a key negative regulator of the renin-angiotensin system and also a major receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Here, we reveal a role for NF-κB in human lung cell expression of ACE2, and we further explore the potential utility of repurposing NF-κB inhibitors to downregulate ACE2. Main methods Expression of ACE2 was assessed by Western blotting and RT-qPCR in multiple human lung cell lines with or without NF-κB inhibitor treatment. Surface ACE2 expression and intracellular reactive oxygen species (ROS) levels were measured with flow cytometry. p50 was knocked down with siRNA. Cytotoxicity was monitored by PARP cleavage and MTS assay. Key findings Pyrrolidine dithiocarbamate (PDTC), an NF-κB inhibitor, suppressed endogenous ACE2 mRNA and protein expression in H322M and Calu-3 cells. The ROS level in H322M cells was increased after PDTC treatment, and pretreatment with N-acetyl-cysteine (NAC) reversed PDTC-induced ACE2 suppression. Meanwhile, treatment with hydrogen peroxide augmented ACE2 suppression in H322M cells with p50 knockdown. Two repurposed NF-κB inhibitors, the anthelmintic drug triclabendazole and the antiprotozoal drug emetine, also reduced ACE2 mRNA and protein levels. Moreover, zinc supplementation augmented the suppressive effects of triclabendazole and emetine on ACE2 expression in H322M and Calu-3 cells. Significance These results suggest that ACE2 expression is modulated by ROS and NF-κB signaling in human lung cells, and the combination of zinc with triclabendazole or emetine shows promise for clinical treatment of ACE2-related disease.
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Affiliation(s)
- Ming-Cheng Lee
- Department of Internal Medicine, Hospital and College of Medicine, National Taiwan University, Taipei 10051, Taiwan, ROC
| | - Yin-Kai Chen
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei 10002, Taiwan, ROC; Department of Hematology, National Taiwan University Cancer Center, Taipei 10672, Taiwan, ROC
| | - Jyy-Jih Tsai-Wu
- Department of Medical Research, National Taiwan University Hospital, Taipei 10051, Taiwan, ROC
| | - Yih-Jen Hsu
- Department of Integrated Diagnostics and Therapeutics, National Taiwan University Hospital, Taipei 10051, Taiwan, ROC
| | - Bor-Ru Lin
- Department of Internal Medicine, Hospital and College of Medicine, National Taiwan University, Taipei 10051, Taiwan, ROC; Department of Integrated Diagnostics and Therapeutics, National Taiwan University Hospital, Taipei 10051, Taiwan, ROC.
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11
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Wang F, Quan Q. WITHDRAWN: Anti-inflammatory role and mechanism of microRNA-92b-3p in the progression of hypoxic pulmonary hypertension. Life Sci 2021:119725. [PMID: 34146556 DOI: 10.1016/j.lfs.2021.119725] [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: 01/12/2021] [Revised: 04/27/2021] [Accepted: 06/10/2021] [Indexed: 10/21/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal
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Affiliation(s)
- Fan Wang
- Department of Comprehensive Intervention, Linyi People's Hospital, Linyi 276000, PR China
| | - Qingqing Quan
- Department of Respiratory, Linyi People's Hospital, Linyi 276000, PR China.
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12
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Wei Z, Gao Y, Meng F, Chen X, Gong Y, Zhu C, Ju B, Zhang C, Liu Z, Liu Q. iDMer: an integrative and mechanism-driven response system for identifying compound interventions for sudden virus outbreak. Brief Bioinform 2021; 22:976-987. [PMID: 33302292 PMCID: PMC7799233 DOI: 10.1093/bib/bbaa341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/11/2020] [Accepted: 10/27/2020] [Indexed: 12/13/2022] Open
Abstract
Emerging viral infections seriously threaten human health globally. Several challenges exist in identifying effective compounds against viral infections: (1) at the initial stage of a new virus outbreak, little information, except for its genome information, may be available; (2) although the identified compounds may be effective, they may be toxic in vivo and (3) cytokine release syndrome (CRS) triggered by viral infections is the primary cause of mortality. Currently, an integrative tool that takes all those aspects into consideration for identifying effective compounds to prevent viral infections is absent. In this study, we developed iDMer, as an integrative and mechanism-driven response system for addressing these challenges during the sudden virus outbreaks. iDMer comprises three mechanism-driven compound identification modules, that is, a virus-host interaction-oriented module, an autophagy-oriented module and a CRS-oriented module. As a one-stop integrative platform, iDMer incorporates compound toxicity evaluation and compound combination identification for virus treatment with clear mechanisms. iDMer was successfully tested on five viruses, including the current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Our results indicated that, for all five tested viruses, compounds that were reported in the literature or experimentally validated for virus treatment were enriched at the top, demonstrating the generalized effectiveness of iDMer. Finally, we demonstrated that combinations of the individual modules successfully identified combinations of compounds effective for virus intervention with clear mechanisms.
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Affiliation(s)
- Zhiting Wei
- School of Life Sciences and Technology, Tongji University, China
| | - Yuli Gao
- School of Life Sciences and Technology, Tongji University, China
| | - Fangliangzi Meng
- School of Life Sciences and Technology, Tongji University, China
| | - Xin Chen
- Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yukang Gong
- School of Life Sciences and Technology, Tongji University, China
| | - Chenyu Zhu
- School of Life Sciences and Technology, Tongji University, China
| | - Bin Ju
- Zhejiang Shuren University Shulan International Medical College
| | - Chao Zhang
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zhongmin Liu
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine
| | - Qi Liu
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
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Implication of EZH2 in the Pro-Proliferative and Apoptosis-Resistant Phenotype of Pulmonary Artery Smooth Muscle Cells in PAH: A Transcriptomic and Proteomic Approach. Int J Mol Sci 2021; 22:ijms22062957. [PMID: 33803922 PMCID: PMC7999120 DOI: 10.3390/ijms22062957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 12/13/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive disorder characterized by a sustained elevation of pulmonary artery (PA) pressure, right ventricular failure, and premature death. Enhanced proliferation and resistance to apoptosis (as seen in cancer cells) of PA smooth muscle cells (PASMCs) is a major pathological hallmark contributing to pulmonary vascular remodeling in PAH, for which current therapies have only limited effects. Emerging evidence points toward a critical role for Enhancer of Zeste Homolog 2 (EZH2) in cancer cell proliferation and survival. However, its role in PAH remains largely unknown. The aim of this study was to determine whether EZH2 represents a new factor critically involved in the abnormal phenotype of PAH-PASMCs. We found that EZH2 is overexpressed in human lung tissues and isolated PASMCs from PAH patients compared to controls as well as in two animal models mimicking the disease. Through loss- and gain-of-function approaches, we showed that EZH2 promotes PAH-PASMC proliferation and survival. By combining quantitative transcriptomic and proteomic approaches in PAH-PASMCs subjected or not to EZH2 knockdown, we found that inhibition of EZH2 downregulates many factors involved in cell-cycle progression, including E2F targets, and contributes to maintain energy production. Notably, we found that EZH2 promotes expression of several nuclear-encoded components of the mitochondrial translation machinery and tricarboxylic acid cycle genes. Overall, this study provides evidence that, by overexpressing EZH2, PAH-PASMCs remove the physiological breaks that normally restrain their proliferation and susceptibility to apoptosis and suggests that EZH2 or downstream factors may serve as therapeutic targets to combat pulmonary vascular remodeling.
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14
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Kumar R, Afsar M, Khandelwal N, Chander Y, Riyesh T, Dedar RK, Gulati BR, Pal Y, Barua S, Tripathi BN, Hussain T, Kumar N. Emetine suppresses SARS-CoV-2 replication by inhibiting interaction of viral mRNA with eIF4E. Antiviral Res 2021; 189:105056. [PMID: 33711336 PMCID: PMC7943376 DOI: 10.1016/j.antiviral.2021.105056] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/23/2021] [Accepted: 02/27/2021] [Indexed: 12/12/2022]
Abstract
Emetine is a FDA-approved drug for the treatment of amebiasis. Previously we demonstrated the antiviral efficacy of emetine against some RNA and DNA viruses. In this study, we evaluated the in vitro antiviral efficacy of emetine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and found it to be a low nanomolar (nM) inhibitor. Interestingly, emetine exhibited protective efficacy against lethal challenge with infectious bronchitis virus (IBV; a chicken coronavirus) in the embryonated chicken egg infection model. Emetine treatment led to a decrease in viral RNA and protein synthesis without affecting other steps of viral life cycle such as attachment, entry and budding. In a chromatin immunoprecipitation (CHIP) assay, emetine was shown to disrupt the binding of SARS-CoV-2 mRNA with eIF4E (eukaryotic translation initiation factor 4E, a cellular cap-binding protein required for initiation of protein translation). Further, molecular docking and molecular dynamics simulation studies suggested that emetine may bind to the cap-binding pocket of eIF4E, in a similar conformation as m7-GTP binds. Additionally, SARS-CoV-2 was shown to exploit ERK/MNK1/eIF4E signalling pathway for its effective replication in the target cells. Collectively our results suggest that further detailed evaluation of emetine as a potential treatment for COVID-19 may be warranted.
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Affiliation(s)
- Ram Kumar
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Mohammad Afsar
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India
| | - Nitin Khandelwal
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Yogesh Chander
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Thachamvally Riyesh
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Ramesh Kumar Dedar
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Baldev R Gulati
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Yash Pal
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Sanjay Barua
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Bhupendra N Tripathi
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India.
| | - Tanweer Hussain
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bengaluru, India.
| | - Naveen Kumar
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India.
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15
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Zhao M, Wang W, Lu Y, Wang N, Kong D, Shan L. MicroRNA‑153 attenuates hypoxia‑induced excessive proliferation and migration of pulmonary arterial smooth muscle cells by targeting ROCK1 and NFATc3. Mol Med Rep 2021; 23:194. [PMID: 33495839 PMCID: PMC7809904 DOI: 10.3892/mmr.2021.11833] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 12/01/2020] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study was to explore the effect of microRNA (miR)‑153 on the proliferation and migration of pulmonary artery smooth muscle cells (PASMCs) in a hypoxic condition by targeting ρ‑associated, coiled‑coil‑containing protein kinase 1 (ROCK1) and nuclear factor of activated T cells cytoplasmic 3 (NFATc3). The right ventricular systolic pressure, right ventricular hypertrophy index, medial wall thickness and medial wall area were studied at different time‑points after rats were exposed to hypoxia. Western blot analysis was used to detect ROCK1 and NFATc3 protein levels. In addition, reverse transcription‑quantitative (RT‑q) PCR was performed to confirm the mRNA levels of miR‑153, ROCK1 and NFATc3 in human (H)PASMCs under hypoxic conditions. Transfected cells were then used to evaluate the effect of miR‑153 on cell proliferation and migration abilities. The association between miR‑153 and ROCK1 or NFATc3 was identified through double luciferase assays. Hypoxia induced pulmonary vascular remodeling and pulmonary arterial hypertension, which resulted from the abnormal proliferation of HPASMCs. ROCK1 and NFATc3 were the target genes of miR‑153 and miR‑153 mimic inhibited the protein expressions of ROCK1 and NFATc3 in HPASMCs and further inhibited cell proliferation and migration under hypoxic conditions. By contrast, the miR‑153 inhibitor promoted the proliferation and migration of HPASMCs. miR‑153 regulated the proliferation and migration of HPASMCs under hypoxia by targeting ROCK1 and NFATc3.
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Affiliation(s)
- Minjie Zhao
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Wei Wang
- Department of Respiratory Disease, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Ya Lu
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Nan Wang
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Delei Kong
- Department of Respiratory Disease, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Lina Shan
- Department of Respiratory Disease, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
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16
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Satoh K. Drug discovery focused on novel pathogenic proteins for pulmonary arterial hypertension. J Cardiol 2021; 78:1-11. [PMID: 33563508 DOI: 10.1016/j.jjcc.2021.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 12/24/2020] [Indexed: 10/22/2022]
Abstract
Pulmonary arterial hypertension (PAH) is a fatal disease in which the wall thickening and narrowing of pulmonary microvessels progress due to complicated interactions among processes such as endothelial dysfunction, the proliferation of pulmonary artery smooth muscle cells (PASMCs) and adventitial fibrocytes, and inflammatory cell infiltration. Early diagnosis of patients with PAH is difficult and lung transplantation is the only last choice to save severely ill patients. However, the number of donors is limited. Many patients with PAH show rapid progression and a high degree of pulmonary arterial remodeling characterized by the abnormal proliferation of PASMCs, which makes treatment difficult even with multidrug therapy comprising pulmonary vasodilators. Thus, it is important to develop novel therapy targeting factors other than vasodilation, such as PASMC proliferation. In the development of PAH, inflammation and oxidative stress are deeply involved in its pathogenesis. Excessive proliferation and apoptosis resistance in PASMCs are key mechanisms underlying PAH. Based on those characteristics, we recently screened novel pathogenic proteins and have performed drug discovery targeting those proteins. To confirm the clinical significance of this, we used patient-derived blood samples to evaluate biomarker potential for diagnosis and prognosis. Moreover, we conducted high throughput screening and found several inhibitors of the pathogenic proteins. In this review, we introduce the recent progress on basic and clinical PAH research, focusing on the screening of pathogenic proteins and drug discovery.
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Affiliation(s)
- Kimio Satoh
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan.
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17
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Kurosawa R, Satoh K, Nakata T, Shindo T, Kikuchi N, Satoh T, Siddique MAH, Omura J, Sunamura S, Nogi M, Takeuchi Y, Miyata S, Shimokawa H. Identification of Celastrol as a Novel Therapeutic Agent for Pulmonary Arterial Hypertension and Right Ventricular Failure Through Suppression of Bsg (Basigin)/CyPA (Cyclophilin A). Arterioscler Thromb Vasc Biol 2021; 41:1205-1217. [PMID: 33472404 DOI: 10.1161/atvbaha.120.315731] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Pulmonary arterial hypertension is characterized by abnormal proliferation of pulmonary artery smooth muscle cells and vascular remodeling, which leads to right ventricular (RV) failure. Bsg (Basigin) is a transmembrane glycoprotein that promotes myofibroblast differentiation, cell proliferation, and matrix metalloproteinase activation. CyPA (cyclophilin A) binds to its receptor Bsg and promotes pulmonary artery smooth muscle cell proliferation and inflammatory cell recruitment. We previously reported that Bsg promotes cardiac fibrosis and failure in the left ventricle in response to pressure-overload in mice. However, the roles of Bsg and CyPA in RV failure remain to be elucidated. Approach and Results: First, we found that protein levels of Bsg and CyPA were upregulated in the heart of hypoxia-induced pulmonary hypertension (PH) in mice and monocrotaline-induced PH in rats. Furthermore, cardiomyocyte-specific Bsg-overexpressing mice showed exacerbated RV hypertrophy, fibrosis, and dysfunction compared with their littermates under chronic hypoxia and pulmonary artery banding. Treatment with celastrol, which we identified as a suppressor of Bsg and CyPA by drug screening, decreased proliferation, reactive oxygen species, and inflammatory cytokines in pulmonary artery smooth muscle cells. Furthermore, celastrol treatment ameliorated RV systolic pressure, hypertrophy, fibrosis, and dysfunction in hypoxia-induced PH in mice and SU5416/hypoxia-induced PH in rats with reduced Bsg, CyPA, and inflammatory cytokines in the hearts and lungs. CONCLUSIONS These results indicate that elevated Bsg in pressure-overloaded RV exacerbates RV dysfunction and that celastrol ameliorates RV dysfunction in PH model animals by suppressing Bsg and its ligand CyPA. Thus, celastrol can be a novel drug for PH and RV failure that targets Bsg and CyPA. Graphic Abstract: A graphic abstract is available for this article.
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Affiliation(s)
- Ryo Kurosawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kimio Satoh
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takashi Nakata
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiko Shindo
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuhiro Kikuchi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Taijyu Satoh
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mohammad A H Siddique
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Junichi Omura
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shinichiro Sunamura
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masamichi Nogi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yutaro Takeuchi
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Satoshi Miyata
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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18
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Bleasel MD, Peterson GM. Emetine Is Not Ipecac: Considerations for Its Use as Treatment for SARS-CoV2. Pharmaceuticals (Basel) 2020; 13:E428. [PMID: 33261173 PMCID: PMC7760625 DOI: 10.3390/ph13120428] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 11/17/2022] Open
Abstract
Emetine is a potent antiviral that acts on many viruses in the low-nM range, with several studies in animals and humans demonstrating antiviral activity. Historically, emetine was used to treat patients with Spanish influenza, in the last stages of the pandemic in the early 1900s. Some of these patients were "black" with cyanosis. Emetine rapidly reversed the cyanosis and other symptoms of this disease in 12-24 h. However, emetine also has been shown to have anti-inflammatory properties and it appears it is these anti-inflammatory properties that were responsible for the effects seen in patients with Spanish influenza. Emetine, in the past, has also been used in 10s to 100s of millions of people at a dose of ~60 mg daily to treat amoebiasis. Based on viral inhibition data we can calculate a likely SARS-CoV2 antiviral dose of ~1/10th the amoebiasis dose, which should dramatically reduce the risk of any side effects. While there are no anti-inflammatory dose response data available, based on the potential mode of action, the anti-inflammatory actions may also occur at low doses. This paper also examines the toxicity of emetine seen in clinical practice and that seen in the laboratory, and discusses the methods of administration aimed at reducing side effects if higher doses were found to be necessary. While emetine is a "pure drug" as it is extracted from ipecac, some of the differences between emetine and ipecac are also discussed.
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Affiliation(s)
- Martin D. Bleasel
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia;
| | - Gregory M. Peterson
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia;
- School of Health Sciences, Faculty of Health, University of Canberra, Canberra, ACT 2617, Australia
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19
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Toshner M, Spiekerkoetter E, Bogaard H, Hansmann G, Nikkho S, Prins KW. Repurposing of medications for pulmonary arterial hypertension. Pulm Circ 2020; 10:2045894020941494. [PMID: 33282182 PMCID: PMC7682234 DOI: 10.1177/2045894020941494] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 06/20/2020] [Indexed: 12/18/2022] Open
Abstract
This manuscript on drug repurposing incorporates the broad experience of members of the Pulmonary Vascular Research Institute's Innovative Drug Development Initiative as an open debate platform for academia, the pharmaceutical industry and regulatory experts surrounding the future design of clinical trials in pulmonary hypertension. Drug repurposing, use of a drug in a disease for which it was not originally developed, in pulmonary arterial hypertension has been a remarkable success story, as highlighted by positive large phase 3 clinical trials using epoprostenol, bosentan, iloprost, and sildenafil. Despite the availability of multiple therapies for pulmonary arterial hypertension, mortality rates have modestly changed. Moreover, pulmonary arterial hypertension patients are highly symptomatic and frequently end up on parental therapy and lung transplant waiting lists. Therefore, an unmet need for new treatments exists and drug repurposing may be an important avenue to address this problem.
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Affiliation(s)
- Mark Toshner
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Edda Spiekerkoetter
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Harm Bogaard
- Department of Pulmonary Medicine, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Georg Hansmann
- Department of Pediatric Cardiology and Critical Care, Hannover Medical School, Hannover, Germany
| | - Sylvia Nikkho
- Bayer Pharmaceuticals, Clinical Development Pulmonology, Berlin, Germany
| | - Kurt W. Prins
- Lillehei Heart Institute, University of Minnesota, Minneapolis, MN, USA
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20
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Abstract
Epigenetic mechanisms involve the placing (writing) or removal (erasing) of histone modifications that allow heterochromatin to transition to the open, activated euchromatin state necessary for transcription. A third, less studied epigenetic pathway involves the reading of these specific histone marks once placed. The BETs (bromodomain and extraterminal-containing protein family), which includes BRD2, BRD3, and BRD4 and the testis-restricted BRDT, are epigenetic reader proteins that bind to specific acetylated lysine residues on histone tails where they facilitate the assembly of transcription complexes including transcription factors and transcriptional machinery like RNA Polymerase II. As reviewed here, considerable recent data establishes BETs as novel determinants of induced transcriptional programs in vascular cells, like endothelial cells and vascular smooth muscle cells, cardiac myocytes and inflammatory cells, like monocyte/macrophages, cellular settings where these epigenetic reader proteins couple proximal stimuli to chromatin, acting at super-enhancer regulatory regions to direct gene expression. BET inhibition, including the use of specific chemical BET inhibitors like JQ-1, has many reported effects in vivo in the cardiovascular setting, like decreasing atherosclerosis, angiogenesis, intimal hyperplasia, pulmonary arterial hypertension, and cardiac hypertrophy. At the same time, data in endothelial cells, adipocytes, and elsewhere suggest BETs also help regulate gene expression under basal conditions. Studies in the cardiovascular setting have highlighted BET action as a means of controlling gene expression in differentiation, cell identity, and cell state transitions, whether physiological or pathological, adaptive, or maladaptive. While distinct BET inhibitors are being pursued as therapies in oncology, a large prospective clinical cardiovascular outcome study investigating the BET inhibitor RVX-208 (now called apabetalone) has already been completed. Independent of this specific agent and this one trial or the numerous unanswered questions that remain, BETs have emerged as novel epigenetic players involved in the execution of coordinated transcriptional programs in cardiovascular health and disease.
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Affiliation(s)
- Patricia Cristine Borck
- From the Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (P.C.B., J.P.)
| | - Lian-Wang Guo
- Davis Heart and Lung Institute, Wexner Medical Center, Ohio State University, Columbus (L.-W.G.)
| | - Jorge Plutzky
- From the Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (P.C.B., J.P.)
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21
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Satoh K, Kikuchi N, Shimokawa H. PIM1 (Provirus Integration Site For Moloney Murine Leukemia Virus) as a Novel Biomarker and Therapeutic Target in Pulmonary Arterial Hypertension: Another Evidence for Cancer Theory. Arterioscler Thromb Vasc Biol 2020; 40:500-502. [PMID: 32101474 DOI: 10.1161/atvbaha.120.313975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Kimio Satoh
- From the Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuhiro Kikuchi
- From the Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroaki Shimokawa
- From the Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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22
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Pham DC, Shibu MA, Mahalakshmi B, Velmurugan BK. Effects of phytochemicals on cellular signaling: reviewing their recent usage approaches. Crit Rev Food Sci Nutr 2019; 60:3522-3546. [PMID: 31822111 DOI: 10.1080/10408398.2019.1699014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Most of the previous studies in last three decades report evidence of interactions between the different phytochemicals and the proteins involved in signal transduction pathways using in silico, in vitro, ex vivo, and in vivo analyses. However, extrapolation of these findings for clinical purposes has not been that fruitful. The efficacy of the phytochemicals in vivo studies is limited by parameters such as solubility, metabolic degradation, excretion, etc. Various approaches have now been devised to circumvent these limitations. Recently, chemical modification of the phytochemicals are demonstrated to reduce some of the limitations and improve their efficacy. Similar to traditional medicines several combinatorial phytochemical formulations have shown to be more efficient. Further, phytochemicals have been reported to be even more efficient in the form of nanoparticles. However, systematic evaluation of their efficacy, mode of action in pathway modulation, usage and associated challenges is required to be done. The present review begins with basic understanding of how signaling cascades regulate cellular response and the consequences of their dysregulation further summarizing the developments and problems associated with the dietary phytochemicals and also discuss recent approaches in strengthening these compounds in pharmacological applications. Only context relevant studies have been reviewed. Considering the limitations and scope of the article, authors do not claim inclusion of all the early and recent studies.
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Affiliation(s)
- Dinh-Chuong Pham
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - M A Shibu
- Cardiovascular and Mitochondria Related Diseases Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - B Mahalakshmi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Bharath Kumar Velmurugan
- Toxicology and Biomedicine Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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