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Kubota H, Tsutsui M, Kuniyoshi K, Yamashita H, Shimokawa H, Sugahara K, Kakinohana M. Alleviated cerebral infarction in male mice lacking all nitric oxide synthase isoforms after middle cerebral artery occlusion. J Anesth 2024; 38:44-56. [PMID: 37910301 DOI: 10.1007/s00540-023-03271-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 10/05/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE The role of the nitric oxide synthases (NOSs) system in cerebral infarction has been examined in pharmacological studies with non-selective NOSs inhibitors. However, due to the non-specificity of the non-selective NOSs inhibitors, its role remains to be fully elucidated. We addressed this issue in mice in which neuronal, inducible, and endothelial NOS isoforms were completely disrupted. METHODS AND RESULTS We newly generated mice lacking all three NOSs by crossbreeding each single NOS-/- mouse. In the male, cerebral infarct size at 24 h after middle cerebral artery occlusion (MCAO) was significantly smaller in the triple n/i/eNOSs-/- genotype as compared with wild-type genotype. Neurological deficit score and mortality rate were also significantly lower in the triple n/i/eNOSs-/- than in the WT genotype. In contrast, in the female, there was no significant difference in the cerebral infarct size in the two genotypes. In the male triple n/i/eNOSs-/- genotype, orchiectomy significantly increased the cerebral infarct size, and in the orchiectomized male triple n/i/eNOSs-/- genotype, treatment with testosterone significantly reduced it. Cyclopaedic and quantitative comparisons of mRNA expression levels in cerebral infarct lesions between the male wild-type and triple n/i/eNOSs-/- genotypes at 1 h after MCAO revealed significant involvements of decreased oxidative stress and mitigated mitochondrial dysfunction in the alleviated cerebral infarction in the male triple n/i/eNOSs-/- genotype. CONCLUSIONS These results provide the first evidence that the NOSs system exerts a deleterious effect against acute ischemic brain injury in the male.
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Affiliation(s)
- Haruaki Kubota
- Department of Pharmacology, Graduate School of Medicine, University the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
- Department of Anesthesiology, Graduate School of Medicine, University the Ryukyus, Nishihara, Okinawa, Japan
| | - Masato Tsutsui
- Department of Pharmacology, Graduate School of Medicine, University the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan.
| | - Kanako Kuniyoshi
- Department of Pharmacology, Graduate School of Medicine, University the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
| | - Hirotaka Yamashita
- Department of Pharmacology, Graduate School of Medicine, University the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
- Graduate School, International University of Health and Welfare, Narita, Japan
| | - Kazuhiro Sugahara
- Department of Anesthesiology, Graduate School of Medicine, University the Ryukyus, Nishihara, Okinawa, Japan
| | - Manabu Kakinohana
- Department of Anesthesiology, Graduate School of Medicine, University the Ryukyus, Nishihara, Okinawa, Japan
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HMGB1 Upregulates RAGE to Trigger the Expression of Inflammatory Factors in the Lung Tissue in a Hypoxic Pulmonary Hypertension Rat Model. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6823743. [PMID: 35903436 PMCID: PMC9325572 DOI: 10.1155/2022/6823743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/19/2022] [Indexed: 11/17/2022]
Abstract
Hypoxic pulmonary hypertension (HPH), a form of pulmonary hypertension (PH) caused by hypoxia, could cause serious complications and has a high mortality rate, and no clinically effective treatments are currently available. In this study, we established an HPH preclinical model in rats by simulating clinicopathological indicators of the disease. Our results showed that high mobility group box-1 protein (HMGB1) aggravated the clinical symptoms of HPH. We aimed at establishing protocols and ideas for the clinical treatment of HPH by identifying downstream HMGB1 binding receptors. Our investigation showed that continuous hypoxia could cause significant lung injury in rats. ELISA and western blotting experiments revealed that HPH induces inflammation in the lung tissue and increases the expression of a hypoxia-inducible factor. Testing of lung tissue proteins in vivo and in human pulmonary artery endothelial cells in vitro revealed that the HMGB1-mediated increase in the receptor for advanced glycation end products (RAGE) expression promoted inflammation. In summary, we successfully established an HPH rat model providing a new model for preclinical HPH research and elucidated the role of HMGB1 in HPH. Furthermore, we describe that HMGB1 induced inflammation in the HPH model via RAGE, causing severe lung dysfunction. This study could potentially provide novel ideas and methods for the clinical treatment of HPH.
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Yatera K, Mukae H. Nitric oxide/nitric oxide synthase in the pathogenesis of pulmonary emphysema. Respir Investig 2022; 60:443-445. [PMID: 35589513 DOI: 10.1016/j.resinv.2022.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Kazuhiro Yatera
- Department of Respiratory Medicine, University of Occupational and Environmental Health, Japan, 1-1, Iseigaoka, Yahata-nishiku, Kitakyushu city, Fukuoka 807-8555, Japan.
| | - Hiroshi Mukae
- Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Department of Respiratory Medicine, 1-7-1, Sakamoto, Nagasaki, 852-8501, Japan
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Zhang Z, Liu C, Bai Y, Li X, Gao X, Li C, Guo G, Chen S, Sun M, Liu K, Li Y, He K. Pipersentan: A De Novo Synthetic Endothelin Receptor Antagonist that Inhibits Monocrotaline- and Hypoxia-Induced Pulmonary Hypertension. Front Pharmacol 2022; 13:920222. [PMID: 35795553 PMCID: PMC9251115 DOI: 10.3389/fphar.2022.920222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/26/2022] [Indexed: 11/26/2022] Open
Abstract
Background: Although major advances have been made in the pathogenesis and management of pulmonary arterial hypertension (PAH), the endothelin system is still considered to play a vital role in the pathology of PAH due to its vasoconstrictive action. Endothelin receptor antagonists (ERAs), either as monotherapy or in combination with other drugs, have attracted much attention in the treatment of this lethal disease, and research is continuing. Methods: A novel ERA, pipersentan 5-(1,3-Benzodioxol-5-yl)-6-[2-(5-bromopyrimidin-2-yl)oxyethoxy]-N-(2-methoxyethylsulfamoyl)pyrimidin-4-amine, was recently synthesized and the physicochemical characterizations and the pharmacology both in vitro and in vivo were studied. Results: This orally administered ERA can both competitively and selectively inhibit the binding of endothelin-1 (ET-1) to its receptors with good physicochemical characteristics. Pipersentan efficaciously antagonized the effects of ET-1 on pulmonary artery smooth muscle cell proliferation, migration and calcium mobilization and effectively improved right ventricular hypertrophy and pulmonary arterial pressure in both monocrotaline- and hypoxia-induced pulmonary hypertension (PH) rat models. Conclusions: This profile identifies pipersentan as a new agent for treating ET-1 system activation-related PH.
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Affiliation(s)
- Zeyu Zhang
- Medical Big Data Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Department of Cardiology, The Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Chunlei Liu
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Translational Medicine Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
| | - Yongyi Bai
- Department of Cardiology, The Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xin Li
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Translational Medicine Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
| | - Xiaojian Gao
- Medical Big Data Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Translational Medicine Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
| | - Chen Li
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Translational Medicine Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
| | - Ge Guo
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Translational Medicine Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
| | - Si Chen
- Senior Department of Cardiology, The Sixth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Mingzhuang Sun
- Senior Department of Cardiology, The Sixth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Kang Liu
- Senior Department of Cardiology, The Sixth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yang Li
- Senior Department of Cardiology, The Sixth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Kunlun He
- Medical Big Data Research Center, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- Beijing Key Laboratory of Chronic Heart Failure Precision Medicine, Medical Innovation Research Division of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Kunlun He,
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Rong W, Liu C, Li X, Wan N, Wei L, Zhu W, Bai P, Li M, Ou Y, Li F, Wang L, Wu X, Liu J, Xing M, Zhao X, Liu H, Zhang H, Lyu A. Caspase-8 Promotes Pulmonary Hypertension by Activating Macrophage-Associated Inflammation and IL-1β (Interleukin 1β) Production. Arterioscler Thromb Vasc Biol 2022; 42:613-631. [PMID: 35387479 DOI: 10.1161/atvbaha.121.317168] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Macrophages are involved in the pathogenesis of pulmonary arterial hypertension (PAH). Caspase-8, an apical component of cell death pathways, is significantly upregulated in macrophages of PAH animal models. However, its role in PAH remains unclear. Caspase-8 plays a critical role in regulating inflammatory responses via inflammasome activation, cell death, and cytokine induction. This study investigated the mechanism of regulation of IL-1β (interleukin 1β) activation in macrophages by caspase-8. METHODS A hypoxia + SU5416-induced PAH mouse model and monocrotaline-induced rat model of PAH were constructed and the role of caspase-8 was analyzed. RESULTS Caspase-8 and cleaved-caspase-8 were significantly upregulated in the lung tissues of SU5416 and hypoxia-treated PAH mice and monocrotaline-treated rats. Pharmacological inhibition of caspase-8 alleviated PAH compared with wild-type mice, observed as a significant reduction in right ventricular systolic pressure, ratio of right ventricular wall to left ventricular wall plus ventricular septum, pulmonary vascular media thickness, and pulmonary vascular muscularization; caspase-8 ablated mice also showed significant remission. Mechanistically, increased proliferation of pulmonary arterial smooth muscle cellss is closely associated with activation of the NLRP3 (NOD [nucleotide oligomerization domain]-, LRR [leucine-rich repeat]-, and PYD [pyrin domain]-containing protein 3) inflammasome and the IL-1β signaling pathway. Although caspase-8 did not affect extracellular matrix synthesis, it promoted inflammatory cell infiltration and pulmonary arterial smooth muscle cell proliferation via NLRP3/IL-1β activation during the development stage of PAH. CONCLUSIONS Taken together, our study suggests that macrophage-derived IL-1β via caspase-8-dependent canonical inflammasome is required for macrophages to play a pathogenic role in pulmonary perivascular inflammation.
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Affiliation(s)
- Wuwei Rong
- Department of Vascular & Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (W.R., C.L., N.W., L.W., W.Z., A.L.)
| | - Chenchen Liu
- Department of Vascular & Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (W.R., C.L., N.W., L.W., W.Z., A.L.)
| | - Xiaoming Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Naifu Wan
- Department of Vascular & Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (W.R., C.L., N.W., L.W., W.Z., A.L.)
| | - Lijiang Wei
- Department of Vascular & Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (W.R., C.L., N.W., L.W., W.Z., A.L.)
| | - Wentong Zhu
- Department of Vascular & Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (W.R., C.L., N.W., L.W., W.Z., A.L.)
| | - Peiyuan Bai
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China (P.B.)
| | - Ming Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Yangjing Ou
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Fang Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Lingxia Wang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Xuanhui Wu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Jianling Liu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Mingyan Xing
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Xiaoming Zhao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Han Liu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Haibing Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China (X.L., M.L., Y.O., F.L., L.W., X.W., J.L., M.X., X.Z., H.L., H.Z.)
| | - Ankang Lyu
- Department of Vascular & Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, China (W.R., C.L., N.W., L.W., W.Z., A.L.)
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6
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Jasińska-Stroschein M. A review of genetically-driven rodent models of pulmonary hypertension. Vascul Pharmacol 2022; 144:106970. [PMID: 35150934 DOI: 10.1016/j.vph.2022.106970] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 01/19/2022] [Accepted: 02/05/2022] [Indexed: 11/19/2022]
Abstract
An increasing number of models used to examine the role of particular signaling pathways in vasculature and the development of pulmonary hypertension (PH) are based on animals with different genetic modifications. The present study explores the severity of PH-related lesions that can be provided by a genetic particular model in accordance to the most common non-genetic PH inducers such as chronic exposure to hypoxia or single injection of monocrotaline. A review of 516 interventions on a variety of animal models was performed. It examined the advantages of various genetically-driven procedures intended to develop spontaneous PH, and the effects of combining such procedures with common PH models or other stimuli ('second-hit') with the aim of exacerbating pulmonary artery remodeling, right ventricle hypertrophy and hemodynamics or animal mortality. A wide range of genetically-modified rodents are used for pre-clinical studies on PH, with different response to the genetic modification as compared to the most common non-genetic stimuli. Nevertheless, they could highlight the mechanisms and pathways that contribute to the expression of pathophysiological features of the disease, and they could be helpful in the identification of additional targets for new drugs.
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Bryant AJ, Ebrahimi E, Nguyen A, Wolff CA, Gumz ML, Liu AC, Esser KA. A wrinkle in time: circadian biology in pulmonary vascular health and disease. Am J Physiol Lung Cell Mol Physiol 2022; 322:L84-L101. [PMID: 34850650 PMCID: PMC8759967 DOI: 10.1152/ajplung.00037.2021] [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: 02/01/2023] Open
Abstract
An often overlooked element of pulmonary vascular disease is time. Cellular responses to time, which are regulated directly by the core circadian clock, have only recently been elucidated. Despite an extensive collection of data regarding the role of rhythmic contribution to disease pathogenesis (such as systemic hypertension, coronary artery, and renal disease), the roles of key circadian transcription factors in pulmonary hypertension remain understudied. This is despite a large degree of overlap in the pulmonary hypertension and circadian rhythm fields, not only including shared signaling pathways, but also cell-specific effects of the core clock that are known to result in both protective and adverse lung vessel changes. Therefore, the goal of this review is to summarize the current dialogue regarding common pathways in circadian biology, with a specific emphasis on its implications in the progression of pulmonary hypertension. In this work, we emphasize specific proteins involved in the regulation of the core molecular clock while noting the circadian cell-specific changes relevant to vascular remodeling. Finally, we apply this knowledge to the optimization of medical therapy, with a focus on sleep hygiene and the role of chronopharmacology in patients with this disease. In dissecting the unique relationship between time and cellular biology, we aim to provide valuable insight into the practical implications of considering time as a therapeutic variable. Armed with this information, physicians will be positioned to more efficiently use the full four dimensions of patient care, resulting in improved morbidity and mortality of pulmonary hypertension patients.
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Affiliation(s)
- Andrew J. Bryant
- 1Department of Medicine, University of Florida College of Medicine, Gainesville, Florida
| | - Elnaz Ebrahimi
- 1Department of Medicine, University of Florida College of Medicine, Gainesville, Florida
| | - Amy Nguyen
- 1Department of Medicine, University of Florida College of Medicine, Gainesville, Florida
| | - Christopher A. Wolff
- 2Department of Physiology, University of Florida College of Medicine, Gainesville, Florida
| | - Michelle L. Gumz
- 2Department of Physiology, University of Florida College of Medicine, Gainesville, Florida
| | - Andrew C. Liu
- 2Department of Physiology, University of Florida College of Medicine, Gainesville, Florida
| | - Karyn A. Esser
- 2Department of Physiology, University of Florida College of Medicine, Gainesville, Florida
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8
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Spontaneous pulmonary emphysema in mice lacking all three nitric oxide synthase isoforms. Sci Rep 2021; 11:22088. [PMID: 34764368 PMCID: PMC8586362 DOI: 10.1038/s41598-021-01453-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 10/28/2021] [Indexed: 12/13/2022] Open
Abstract
The roles of endogenous nitric oxide (NO) derived from the entire NO synthases (NOSs) system have yet to be fully elucidated. We addressed this issue in mice in which all three NOS isoforms were deleted. Under basal conditions, the triple n/i/eNOSs−/− mice displayed significantly longer mean alveolar linear intercept length, increased alveolar destructive index, reduced lung elastic fiber content, lower lung field computed tomographic value, and greater end-expiratory lung volume as compared with wild-type (WT) mice. None of single NOS−/− or double NOSs−/− genotypes showed such features. These findings were observed in the triple n/i/eNOSs−/− mice as early as 4 weeks after birth. Cyclopaedic and quantitative comparisons of mRNA expression levels between the lungs of WT and triple n/i/eNOSs−/− mice by cap analysis of gene expression (CAGE) revealed that mRNA expression levels of three Wnt ligands and ten Wnt/β-catenin signaling components were significantly reduced in the lungs of triple n/i/eNOSs−/− mice. These results provide the first direct evidence that complete disruption of all three NOS genes results in spontaneous pulmonary emphysema in juvenile mice in vivo possibly through down-regulation of the Wnt/β-catenin signaling pathway, demonstrating a novel preventive role of the endogenous NO/NOS system in the occurrence of pulmonary emphysema.
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Liu J, Deng Y, Fan Z, Xu S, Wei L, Huang X, Xing X, Yang J. Construction and analysis of the abnormal lncRNA-miRNA-mRNA network in hypoxic pulmonary hypertension. Biosci Rep 2021; 41:BSR20210021. [PMID: 34374413 PMCID: PMC8390787 DOI: 10.1042/bsr20210021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 06/28/2021] [Accepted: 07/19/2021] [Indexed: 02/05/2023] Open
Abstract
The incidence of hypoxic pulmonary hypertension (HPH) is increasing. Accumulating evidence suggests that long noncoding RNAs (lncRNAs) play an important role in HPH, but the functions and mechanism have yet to be fully elucidated. In the present study, we established a HPH rat model with 8 h of hypoxia exposure (10% O2) per day for 21 days. High-throughput sequencing identified 60 differentially expressed (DE) lncRNAs, 20 DE miRNAs and 695 DE mRNAs in rat lung tissue. qRT-PCR verified the accuracy of the results. The DE mRNAs were significantly enriched in immune response, inflammatory response, leukocyte migration, cell cycle, cellular response to interleukin-1, IL-17 signalling pathway, cytokine-cytokine receptor interaction and Toll-like receptor signalling pathway. According to the theory of competing endogenous RNA (ceRNA) networks, lncRNA-miRNA-mRNA network was constructed by Cytoscape software, 16 miRNAs and 144 mRNAs. The results suggested that seven DE lncRNAs (Ly6l, AABR07038849.2, AABR07069008.2, AABR07064873.1, AABR07001382.1, AABR07068161.1 and AABR07060341.2) may serve as molecular sponges of the corresponding miRNAs and play a major role in HPH.
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MESH Headings
- Animals
- Databases, Genetic
- Disease Models, Animal
- Gene Expression Profiling
- Gene Expression Regulation
- Gene Regulatory Networks
- Hypertension, Pulmonary/etiology
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypoxia/complications
- Male
- Protein Interaction Maps
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Signal Transduction
- Transcriptome
- Rats
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Affiliation(s)
- Jie Liu
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, Kunming 650021, Yunnan, China
| | - Yishu Deng
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People’s Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Zeqin Fan
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People’s Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Shuanglan Xu
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People’s Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Li Wei
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People’s Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Xiaoxian Huang
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People’s Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Xiqian Xing
- Department of Respiratory Medicine, The Affiliated Hospital of Yunnan University, The Second People’s Hospital of Yunnan Province, Kunming 650021, Yunnan, China
| | - Jiao Yang
- First Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
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10
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Tawa M, Nagata R, Sumi Y, Nakagawa K, Sawano T, Ohkita M, Matsumura Y. Preventive effects of nitrate-rich beetroot juice supplementation on monocrotaline-induced pulmonary hypertension in rats. PLoS One 2021; 16:e0249816. [PMID: 33831045 PMCID: PMC8031446 DOI: 10.1371/journal.pone.0249816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 03/26/2021] [Indexed: 11/18/2022] Open
Abstract
Beetroot (Beta vulgaris L.) has a high level of nitrate; therefore, its dietary intake could increase nitric oxide (NO) level in the body, possibly preventing the development of pulmonary hypertension (PH). In this study, we examined the effects of beetroot juice (BJ) supplementation on PH and the contribution of nitrate to such effects using a rat model of monocrotaline (MCT, 60 mg/kg s.c.)-induced PH. Rats were injected subcutaneously with saline or 60 mg/kg MCT and were sacrificed 28 days after the injection. In some rats injected with MCT, BJ was supplemented from the day of MCT injection to the day of sacrifice. First, MCT-induced right ventricular systolic pressure elevation, pulmonary arterial medial thickening and muscularization, and right ventricular hypertrophy were suppressed by supplementation with low-dose BJ (nitrate: 1.3 mmol/L) but not high-dose BJ (nitrate: 4.3 mmol/L). Of the plasma nitrite, nitrate, and their sum (NOx) levels, only the nitrate levels were found to be increased by the high-dose BJ supplementation. Second, in order to clarify the possible involvement of nitrate in the preventive effects of BJ on PH symptoms, the effects of nitrate-rich BJ (nitrate: 0.9 mmol/L) supplementation were compared with those of the nitrate-depleted BJ. While the former exerted preventive effects on PH symptoms, such effects were not observed in rats supplemented with nitrate-depleted BJ. Neither supplementation with nitrate-rich nor nitrate-depleted BJ affected plasma nitrite, nitrate, and NOx levels. These findings suggest that a suitable amount of BJ ingestion, which does not affect systemic NO levels, can prevent the development of PH in a nitrate-dependent manner. Therefore, BJ could be highly useful as a therapy in patients with PH.
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Affiliation(s)
- Masashi Tawa
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
- Department of Pharmacology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
- * E-mail: ,
| | - Rikako Nagata
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Yuiko Sumi
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Keisuke Nakagawa
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Tatsuya Sawano
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
- Division of Molecular Pharmacology, Faculty of Medicine, Tottori University, Yonago, Tottori, Japan
| | - Mamoru Ohkita
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Yasuo Matsumura
- Laboratory of Pathological and Molecular Pharmacology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
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Ogoshi T, Tsutsui M, Yatera K, Mukae H. [Protective role of myelocytic nitric oxide synthases in pulmonary hypertension due to lung diseases and/or hypoxia]. Nihon Yakurigaku Zasshi 2020; 155:69-73. [PMID: 32115480 DOI: 10.1254/fpj.19111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Nitric oxide (NO), formed from NO synthases (NOSs), plays a pathogenetic role in pulmonary hypertension (PH). However, the role of NO/NOSs in bone marrow (BM) cells in PH remains to be clarified. We addressed this point in clinical and basic studies. We demonstrated that, in 36 consecutive patients with idiopathic pulmonary fibrosis, pulmonary artery systolic pressure is inversely correlated with NOx levels in the bronchoalveolar lavage fluid, suggesting reduced pulmonary NO production in group III PH. We then revealed that transplantation of BM cells from mice lacking all NOSs aggravates hypoxia-induced PH in wild-type (WT) mice, and transplantation of BM cells from the WT mice ameliorates hypoxia-induced PH in the NOSs-/- mice, indicating a protective role of myelocytic NOSs in the pathogenesis of PH. Immune and inflammatory mechanisms appeared to be involved in the aggravation of hypoxia-induced PH caused by transplantation of BM cells from the NOSs-/- mice. Our findings provide novel insights into the cellular and molecular basis of group III PH.
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Affiliation(s)
- Takaaki Ogoshi
- Department of Respiratory Medicine, University of Occupational and Environmental Health.,Department of Respiratory Medicine, Kokura Memorial Hospital
| | - Masato Tsutsui
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus
| | - Kazuhiro Yatera
- Department of Respiratory Medicine, University of Occupational and Environmental Health
| | - Hiroshi Mukae
- Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
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Barnes JW, Patel RP. Things We "kNOw" and Do Not "kNOw" about Pulmonary Hypertension. Am J Respir Crit Care Med 2019; 198:151-152. [PMID: 29590535 DOI: 10.1164/rccm.201803-0424ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Jarrod W Barnes
- 1 Division of Pulmonary, Allergy, and Critical Care Medicine University of Alabama at Birmingham Birmingham, Alabama.,2 Lerner Research Institute Cleveland Clinic Cleveland, Ohio and
| | - Rakesh P Patel
- 3 Department of Pathology University of Alabama at Birmingham Birmingham, Alabama
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Myeloid-Derived Suppressor Cells and Pulmonary Hypertension. Int J Mol Sci 2018; 19:ijms19082277. [PMID: 30081463 PMCID: PMC6121540 DOI: 10.3390/ijms19082277] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 01/04/2023] Open
Abstract
Myeloid–derived suppressor cells (MDSCs) comprised a heterogeneous subset of bone marrow–derived myeloid cells, best studied in cancer research, that are increasingly implicated in the pathogenesis of pulmonary vascular remodeling and the development of pulmonary hypertension. Stem cell transplantation represents one extreme interventional strategy for ablating the myeloid compartment but poses a number of translational challenges. There remains an outstanding need for additional therapeutic targets to impact MDSC function, including the potential to alter interactions with innate and adaptive immune subsets, or alternatively, alter trafficking receptors, metabolic pathways, and transcription factor signaling with readily available and safe drugs. In this review, we summarize the current literature on the role of myeloid cells in the development of pulmonary hypertension, first in pulmonary circulation changes associated with myelodysplastic syndromes, and then by examining intrinsic myeloid cell changes that contribute to disease progression in pulmonary hypertension. We then outline several tractable targets and pathways relevant to pulmonary hypertension via MDSC regulation. Identifying these MDSC-regulated effectors is part of an ongoing effort to impact the field of pulmonary hypertension research through identification of myeloid compartment-specific therapeutic applications in the treatment of pulmonary vasculopathies.
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Jiang J, Xia Y, Liang Y, Yang M, Zeng W, Zeng X. miR-190a-5p participates in the regulation of hypoxia-induced pulmonary hypertension by targeting KLF15 and can serve as a biomarker of diagnosis and prognosis in chronic obstructive pulmonary disease complicated with pulmonary hypertension. Int J Chron Obstruct Pulmon Dis 2018; 13:3777-3790. [PMID: 30538440 PMCID: PMC6251363 DOI: 10.2147/copd.s182504] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PURPOSE miR-190a-5p expression alters dynamically in response to hypoxia. However, the role of miR-190a-5p expression in hypoxia-induced pulmonary hypertension (PH) remains unclear. We sought to correlate the miR-190a-5p expression levels with the severity, diagnosis, and prognosis of PH in relation to chronic obstructive pulmonary disease (COPD-PH). Additionally, we evaluated the effect of miR-190a-5p through in vitro experiments on human pulmonary endothelial cells (HPECs) that were exposed to hypoxia and in vivo experiments using an animal model of hypoxia-induced PH. METHODS Circulating miR-190a-5p levels were measured from 73 patients with PH and 32 healthy controls through quantitative real-time PCR. The levels of miR-190a-5p and the expression of Krüppel-like factor 15 (KLF15) were analyzed in HPECs that were exposed to hypoxia, and the effects of antagomir-190a-5p in mice with chronic hypoxia-induced PH were tested. Target gene analysis was performed by Western blot and luciferase assay. RESULTS The miR-190a-5p level was significantly higher in patients with COPD-PH than in the healthy controls. Higher miR-190a-5p levels were associated with a greater severity of COPD-PH. In vitro experiments on HPECs showed that exposure to hypoxia increased the miR-190a-5p levels significantly. KLF15 was validated as a target of miR-190a-5p. Transfection with miR-190a-5p mimicked inhibition of KLF15 expression in HPECs. In the mouse model of PH, antagomir-190a-5p reduced right ventricular systolic pressure and enhanced the KLF15 expression levels in lung tissue. CONCLUSION miR-190a-5p regulates hypoxia-induced PH by targeting KLF15. The circulating levels of miR-190a-5p correlate with the severity of COPD-PH, thereby confirming the diagnostic and prognostic value of this parameter in COPD-PH.
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MESH Headings
- Adult
- Aged
- Animals
- Biomarkers/metabolism
- Case-Control Studies
- Cell Hypoxia
- Cells, Cultured
- Disease Models, Animal
- Endothelial Cells/metabolism
- Female
- Gene Expression Regulation
- Humans
- Hypertension, Pulmonary/etiology
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/physiopathology
- Kruppel-Like Transcription Factors/genetics
- Kruppel-Like Transcription Factors/metabolism
- Lung/blood supply
- Male
- Mice, Inbred C57BL
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Middle Aged
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Predictive Value of Tests
- Prognosis
- Prospective Studies
- Pulmonary Disease, Chronic Obstructive/complications
- Pulmonary Disease, Chronic Obstructive/genetics
- Pulmonary Disease, Chronic Obstructive/metabolism
- Pulmonary Disease, Chronic Obstructive/physiopathology
- Severity of Illness Index
- Signal Transduction
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Affiliation(s)
- Jing Jiang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yimeng Xia
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, People's Republic of China
| | - Yi Liang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Meiling Yang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Wen Zeng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Xiaocong Zeng
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China,
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