1
|
Xu HP, Niu H, Wang H, Lin J, Yao JJ. Knockdown of RTEL1 Alleviates Chronic Obstructive Pulmonary Disease by Modulating M1, M2 Macrophage Polarization and Inflammation. COPD 2024; 21:2316607. [PMID: 38420994 DOI: 10.1080/15412555.2024.2316607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 02/05/2024] [Indexed: 03/02/2024]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common chronic disease characterized by airflow obstruction, which seriously threatens people's health. The COPD mouse model was established with cigarette smoke induction. Hematoxylin-eosin staining and Masson staining were carried out to observe the pathological changes of lung tissues in COPD mice. RTEL1 was silenced in COPD mice, and immunohistochemistry was used to detect RTEL1, ki67 and Caspase-3 expression. The role of RTEL1 in inflammation were evaluated by ELISA, and the impacts of RTEL1 on M1 and M2 macrophage markers (iNOS and CD206) were evaluated by qPCR and western blotting. In COPD model, there was an increase in the number of inflammatory cells, with slightly disorganized cell arrangement, unclear hierarchy, condensed and solidified nuclei, while knockdown of RTEL1 improved the inflammatory infiltration. Moreover, knockdown of RTEL1 reduced ki67-positive cells and increased Caspase-3 positive cells in COPD group. The increased inflammatory factors (IL-1β, MMP-9, TNF-α, IL-4, IL-6, and IL-23) in COPD were suppressed by knockdown of RTEL1, while iNOS was raised and CD206 was inhibited. In conclusion, knockdown of RTEL1 promoted M1 and inhibited M2 macrophage polarization and inflammation to alleviate COPD.
Collapse
Affiliation(s)
- He-Ping Xu
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Huan Niu
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Hong Wang
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jie Lin
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jin-Jian Yao
- Department of Emergency Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| |
Collapse
|
2
|
Zuo Y, Li B, Gao M, Xiong R, He R, Li N, Geng Q. Novel insights and new therapeutic potentials for macrophages in pulmonary hypertension. Respir Res 2024; 25:147. [PMID: 38555425 PMCID: PMC10981837 DOI: 10.1186/s12931-024-02772-8] [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: 07/23/2023] [Accepted: 03/13/2024] [Indexed: 04/02/2024] Open
Abstract
Inflammation and immune processes underlie pulmonary hypertension progression. Two main different activated phenotypes of macrophages, classically activated M1 macrophages and alternatively activated M2 macrophages, are both involved in inflammatory processes related to pulmonary hypertension. Recent advances suggest that macrophages coordinate interactions among different proinflammatory and anti-inflammatory mediators, and other cellular components such as smooth muscle cells and fibroblasts. In this review, we summarize the current literature on the role of macrophages in the pathogenesis of pulmonary hypertension, including the origin of pulmonary macrophages and their response to triggers of pulmonary hypertension. We then discuss the interactions among macrophages, cytokines, and vascular adventitial fibroblasts in pulmonary hypertension, as well as the potential therapeutic benefits of macrophages in this disease. Identifying the critical role of macrophages in pulmonary hypertension will contribute to a comprehensive understanding of this pathophysiological abnormality, and may provide new perspectives for pulmonary hypertension management.
Collapse
Affiliation(s)
- Yifan Zuo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Boyang Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Minglang Gao
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Rui Xiong
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Ruyuan He
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
| |
Collapse
|
3
|
Gao L, Zhang S, Zhao Z, Zhao Q, Yang T, Zeng Q, Zhang Y, Li X, Huang Z, Duan A, Luo Q, Liu Z. Role of the Systemic Inflammatory Response Index in Predicting Disease Severity and Prognosis in Idiopathic Pulmonary Arterial Hypertension. J Inflamm Res 2024; 17:447-460. [PMID: 38282710 PMCID: PMC10812137 DOI: 10.2147/jir.s434720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 12/19/2023] [Indexed: 01/30/2024] Open
Abstract
Introduction Mounting evidence indicates a possible connection between the systemic inflammatory response index (SIRI) and the prognosis of heart failure, but its role in idiopathic pulmonary arterial hypertension (IPAH) is not well understood. This study aimed to investigate the relationship between SIRI and variables such as functional ability, echocardiography results, hemodynamic measurements, and long-term outcomes in patients with IPAH. Methods The study included 426 consecutive IPAH patients who underwent right heart catheterization at Fuwai Hospital from January 2013 to December 2020. SIRI was calculated using composite inflammation indicators from routine blood tests. The main outcome measure was clinical deterioration. Spearman correlation coefficients were used to assess associations between SIRI and indicators of IPAH severity. Receiver operating characteristic (ROC) curve analysis was conducted to determine the optimal SIRI threshold and predictive ability. Kaplan-Meier analysis and Cox proportional hazard models were used to examine the relationship between SIRI and clinical deterioration. Results SIRI showed positive associations with indicators such as N-terminal pro-brain natriuretic peptide, right ventricular end-diastolic diameter, pericardial effusion, mean pulmonary arterial pressure, and pulmonary vascular resistance. Conversely, SIRI had inverse relationships with 6-minute walking distance and left ventricular end-diastolic diameter. Kaplan-Meier curves revealed a significantly higher rate of clinical deterioration in individuals with SIRI > 0.741 compared to those with SIRI ≤ 0.741 (P < 0.001). Adjusted Cox analysis showed SIRI remained an independent predictor of clinical worsening (hazard ratio 1.366, 95% confidence interval 1.073-1.738, P = 0.011). ROC analysis demonstrated SIRI provided additional predictive value beyond the risk assessment score of the European Society of Cardiology/European Respiratory Society. Discussion In summary, SIRI could predict the severity and prognosis of IPAH independently. It was associated with various indicators of IPAH severity and was a significant predictor of clinical deterioration. SIRI also offered additional predictive value beyond existing risk assessment scores.
Collapse
Affiliation(s)
- Luyang Gao
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Sicheng Zhang
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Zhihui Zhao
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Qing Zhao
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Tao Yang
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Qixian Zeng
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Yi Zhang
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Xin Li
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Zhihua Huang
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Anqi Duan
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Qin Luo
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Zhihong Liu
- Center for Respiratory and Pulmonary Vascular Diseases, Fuwai Hospital, National Center for Cardiovascular Diseases, National Clinical Research Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| |
Collapse
|
4
|
Huang Y, Zhang J, Zhao Q, Hu X, Zhao H, Wang S, Wang L, Jiang R, Wu W, Liu J, Yuan P, Gong S. Impact of reduced apolipoprotein A-I levels on pulmonary arterial hypertension. Hellenic J Cardiol 2023:S1109-9666(23)00195-1. [PMID: 37940001 DOI: 10.1016/j.hjc.2023.10.004] [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: 06/27/2023] [Revised: 08/27/2023] [Accepted: 10/25/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND The significance of apolipoprotein A-I (ApoA-I) is the anti-inflammatory functional component of high-density lipoprotein, which needs to be further studied in relation to pulmonary arterial hypertension (PAH). This study aimed to identify the predictive value of ApoA-1 on the risk and prognosis of PAH, as well as the underlying anti-inflammatory mechanism. METHODS Proteomic analysis was conducted on lung tissue from 6 PAH patients and 4 lung donors. Prediction of risk and mortality risk factors associated with PAH in 343 patients used logistic analysis and Cox regression analysis, respectively. The protective function of ApoA-I was assessed in human pulmonary arterial endothelial cells (HPAEC), while its anti-inflammatory function was evaluated in THP-1 macrophages. RESULTS In the lung tissues of patients with PAH, 168 differentially expressed proteins were associated with lipid metabolism according to GO and KEGG enrichment analysis. A protein-protein interaction network identified ApoA-I as a key protein associated with PAH. Lower ApoA-I levels were independent risk factors for PAH and displayed a stronger predictive value for PAH mortality. Plasma interleukin 6 (IL-6) levels were positively correlated with risk stratification and was higher in PAH patients with lower ApoA-I levels. ApoA-I was downregulated in lung tissues of MCT-induced rats. ApoA-I could reduce IL-6-induced pro-proliferative and pro-migratory abilities of HPAEC and inhibit secretion of IL-6 from macrophages, which is compromised under hypoxic conditions. CONCLUSION Our study identified the significance of ApoA-I as a biomarker for predicting the survival outcome of PAH patients, which might relate to its altered anti-inflammatory properties.
Collapse
Affiliation(s)
- Yuxia Huang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Ji Zhang
- Department of Lung Transplantation, First Affiliated Hospital, School of Medical, Zhejiang University, Hangzhou 310000, China
| | - Qinhua Zhao
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Xiaoyi Hu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Hui Zhao
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China; Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai 200000, China
| | - Shang Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Lan Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Rong Jiang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Wenhui Wu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China
| | - Jinming Liu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China.
| | - Ping Yuan
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China.
| | - Sugang Gong
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China.
| |
Collapse
|
5
|
Liu X, Zhou H, Zhang H, Jin H, He Y. Advances in the research of sulfur dioxide and pulmonary hypertension. Front Pharmacol 2023; 14:1282403. [PMID: 37900169 PMCID: PMC10602757 DOI: 10.3389/fphar.2023.1282403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023] Open
Abstract
Pulmonary hypertension (PH) is a fatal disease caused by progressive pulmonary vascular remodeling (PVR). Currently, the mechanisms underlying the occurrence and progression of PVR remain unclear, and effective therapeutic approaches to reverse PVR and PH are lacking. Since the beginning of the 21st century, the endogenous sulfur dioxide (SO2)/aspartate transaminase system has emerged as a novel research focus in the fields of PH and PVR. As a gaseous signaling molecule, SO2 metabolism is tightly regulated in the pulmonary vasculature and is associated with the development of PH as it is involved in the regulation of pathological and physiological activities, such as pulmonary vascular cellular inflammation, proliferation and collagen metabolism, to exert a protective effect against PH. In this review, we present an overview of the studies conducted to date that have provided a theoretical basis for the development of SO2-related drug to inhibit or reverse PVR and effectively treat PH-related diseases.
Collapse
Affiliation(s)
- Xin Liu
- Department of Pediatric Cardiac Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - He Zhou
- Departments of Medicine and Physiology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Hongsheng Zhang
- Department of Pediatric Cardiac Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Yan He
- Department of Pediatric Cardiac Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
6
|
Zhong C, Si Y, Yang H, Zhou C, Chen Y, Wang C, Liu Y, Chen C, Shi H, Lai X, Tang H. Identification of monocyte-associated pathways participated in the pathogenesis of pulmonary arterial hypertension based on omics-data. Pulm Circ 2023; 13:e12319. [PMID: 38130888 PMCID: PMC10733707 DOI: 10.1002/pul2.12319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/23/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is one kind of chronic and uncurable diseases that can cause heart failure. Immune microenvironment plays a significant role in PAH. The aim of this study was to assess the role of immune cell infiltration in the pathogenesis of PAH. Differentially expressed genes based on microarray data were enriched in several immune-related pathways. To evaluate the immune cell infiltration, based on the microarray data sets in the GEO database, we used both ssGSEA and the CIBERSORT algorithm. Additionally, single-cell RNA sequencing (scRNA-seq) data was used to further explicit the specific role and intercellular communications. Then receiver operating characteristic curves and least absolute shrinkage and selection operator were used to discover and test the potential diagnostic biomarkers for PAH. Both the immune cell infiltration analyses based on the microarray data sets and the cell proportion in scRNA-seq data exhibited a significant downregulation in the infiltration of monocytes in PAH. Then, the intercellular communications showed that the interaction weighs of most immune cells, including monocytes changed between the control and PAH groups, and the ITGAL-ITGB2 and ICAM signaling pathways played critical roles in this process. In addition, ITGAM and ICAM2 displayed good diagnosis values in PAH. This study implicated that the change of monocyte was one of the key immunologic features of PAH. Monocyte-associated ICAM-1 and ITGAL-ITGB2 signaling pathways might be involved in the pathogenesis of PAH.
Collapse
Affiliation(s)
- Caiming Zhong
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
- Department of Respiratory and Critical Care Medicine, Shanghai Changhai HospitalNaval Medical UniversityShanghaiChina
| | - Yachen Si
- Department of Nephrology, Shanghai Changhai HospitalNaval Medical UniversityShanghaiChina
| | - Huanhuan Yang
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| | - Chao Zhou
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| | - Yang Chen
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| | - Chen Wang
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| | - Yalong Liu
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| | - Cheng Chen
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| | - Hui Shi
- Department of Respiratory and Critical Care Medicine, Shanghai Changhai HospitalNaval Medical UniversityShanghaiChina
| | - Xueli Lai
- Department of Nephrology, Shanghai Changhai HospitalNaval Medical UniversityShanghaiChina
| | - Hao Tang
- Department of Respiratory and Critical Care Medicine, Shanghai Changzheng HospitalNaval Medical UniversityShanghaiChina
| |
Collapse
|
7
|
Monsorno K, Ginggen K, Ivanov A, Buckinx A, Lalive AL, Tchenio A, Benson S, Vendrell M, D'Alessandro A, Beule D, Pellerin L, Mameli M, Paolicelli RC. Loss of microglial MCT4 leads to defective synaptic pruning and anxiety-like behavior in mice. Nat Commun 2023; 14:5749. [PMID: 37717033 PMCID: PMC10505217 DOI: 10.1038/s41467-023-41502-4] [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: 12/13/2022] [Accepted: 09/07/2023] [Indexed: 09/18/2023] Open
Abstract
Microglia, the innate immune cells of the central nervous system, actively participate in brain development by supporting neuronal maturation and refining synaptic connections. These cells are emerging as highly metabolically flexible, able to oxidize different energetic substrates to meet their energy demand. Lactate is particularly abundant in the brain, but whether microglia use it as a metabolic fuel has been poorly explored. Here we show that microglia can import lactate, and this is coupled with increased lysosomal acidification. In vitro, loss of the monocarboxylate transporter MCT4 in microglia prevents lactate-induced lysosomal modulation and leads to defective cargo degradation. Microglial depletion of MCT4 in vivo leads to impaired synaptic pruning, associated with increased excitation in hippocampal neurons, enhanced AMPA/GABA ratio, vulnerability to seizures and anxiety-like phenotype. Overall, these findings show that selective disruption of the MCT4 transporter in microglia is sufficient to alter synapse refinement and to induce defects in mouse brain development and adult behavior.
Collapse
Affiliation(s)
- Katia Monsorno
- University of Lausanne, Department of Biomedical Sciences, Lausanne, Switzerland
| | - Kyllian Ginggen
- University of Lausanne, Department of Biomedical Sciences, Lausanne, Switzerland
| | - Andranik Ivanov
- Core Unit Bioinformatics, Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - An Buckinx
- University of Lausanne, Department of Biomedical Sciences, Lausanne, Switzerland
| | - Arnaud L Lalive
- University of Lausanne, Department of Fundamental Neurosciences, Lausanne, Switzerland
| | - Anna Tchenio
- University of Lausanne, Department of Fundamental Neurosciences, Lausanne, Switzerland
| | - Sam Benson
- University of Edinburgh, Centre for Inflammation Research, Edinburgh, United Kingdom
| | - Marc Vendrell
- University of Edinburgh, Centre for Inflammation Research, Edinburgh, United Kingdom
| | - Angelo D'Alessandro
- University of Colorado, Anschutz Medical Campus, Department of Biochemistry and Molecular Genetics, Denver, CO, USA
| | - Dieter Beule
- Core Unit Bioinformatics, Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Luc Pellerin
- Inserm U1313, University of Poitiers and CHU of Poitiers, Poitiers Cedex, France
| | - Manuel Mameli
- University of Lausanne, Department of Fundamental Neurosciences, Lausanne, Switzerland
| | | |
Collapse
|
8
|
Bassareo PP, D’Alto M. Metabolomics in Pulmonary Hypertension-A Useful Tool to Provide Insights into the Dark Side of a Tricky Pathology. Int J Mol Sci 2023; 24:13227. [PMID: 37686034 PMCID: PMC10487467 DOI: 10.3390/ijms241713227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/16/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Pulmonary hypertension (PH) is a multifaceted illness causing clinical manifestations like dyspnea, fatigue, and cyanosis. If left untreated, it often evolves into irreversible pulmonary arterial hypertension (PAH), leading to death. Metabolomics is a laboratory technique capable of providing insights into the metabolic pathways that are responsible for a number of physiologic or pathologic events through the analysis of a biological fluid (such as blood, urine, and sputum) using proton nuclear magnetic resonance spectroscopy or mass spectrometry. A systematic review was finalized according to the PRISMA scheme, with the goal of providing an overview of the research papers released up to now on the application of metabolomics to PH/PAH. So, eighty-five papers were identified, of which twenty-four concerning PH, and sixty-one regarding PAH. We found that, from a metabolic standpoint, the hallmarks of the disease onset and progression are an increase in glycolysis and impaired mitochondrial respiration. Oxidation is exacerbated as well. Specific metabolic fingerprints allow the characterization of some of the specific PH and PAH subtypes. Overall, metabolomics provides insights into the biological processes happening in the body of a subject suffering from PH/PAH. The disarranged metabolic pathways underpinning the disease may be the target of new therapeutic agents. Metabolomics will allow investigators to make a step forward towards personalized medicine.
Collapse
Affiliation(s)
- Pier Paolo Bassareo
- Mater Misercordiae University Hospital, D07 R2WY Dublin, Ireland
- Children’s Health Ireland at Crumlin, D12 N512 Dublin, Ireland
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Michele D’Alto
- Pulmonary Hypertension Unit, Dipartimento di Cardiologia, Università della Campania “Luigi Vanvitelli”, Ospedale Monaldi, 80131 Naples, Italy;
| |
Collapse
|
9
|
Plecitá-Hlavatá L, Brázdová A, Křivonosková M, Hu CJ, Phang T, Tauber J, Li M, Zhang H, Hoetzenecker K, Crnkovic S, Kwapiszewska G, Stenmark KR. Microenvironmental regulation of T-cells in pulmonary hypertension. Front Immunol 2023; 14:1223122. [PMID: 37497214 PMCID: PMC10368362 DOI: 10.3389/fimmu.2023.1223122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/15/2023] [Indexed: 07/28/2023] Open
Abstract
Introduction In pulmonary hypertension (PH), pulmonary arterial remodeling is often accompanied by perivascular inflammation. The inflammation is characterized by the accumulation of activated macrophages and lymphocytes within the adventitial stroma, which is comprised primarily of fibroblasts. The well-known ability of fibroblasts to secrete interleukins and chemokines has previously been implicated as contributing to this tissue-specific inflammation in PH vessels. We were interested if pulmonary fibroblasts from PH arteries contribute to microenvironmental changes that could activate and polarize T-cells in PH. Methods We used single-cell RNA sequencing of intact bovine distal pulmonary arteries (dPAs) from PH and control animals and flow cytometry, mRNA expression analysis, and respirometry analysis of blood-derived bovine/human T-cells exposed to conditioned media obtained from pulmonary fibroblasts of PH/control animals and IPAH/control patients (CM-(h)PH Fibs vs CM-(h)CO Fibs). Results Single-cell RNA sequencing of intact bovine dPAs from PH and control animals revealed a pro-inflammatory phenotype of CD4+ T-cells and simultaneous absence of regulatory T-cells (FoxP3+ Tregs). By exposing T-cells to CM-(h)PH Fibs we stimulated their proinflammatory differentiation documented by increased IFNγ and decreased IL4, IL10, and TGFβ mRNA and protein expression. Interestingly, we demonstrated a reduction in the number of suppressive T-cell subsets, i.e., human/bovine Tregs and bovine γδ T-cells treated with CM-(h)PH-Fibs. We also noted inhibition of anti-inflammatory cytokine expression (IL10, TGFβ, IL4). Pro-inflammatory polarization of bovine T-cells exposed to CM-PH Fibs correlated with metabolic shift to glycolysis and lactate production with increased prooxidant intracellular status as well as increased proliferation of T-cells. To determine whether metabolic reprogramming of PH-Fibs was directly contributing to the effects of PH-Fibs conditioned media on T-cell polarization, we treated PH-Fibs with the HDAC inhibitor SAHA, which was previously shown to normalize metabolic status and examined the effects of the conditioned media. We observed significant suppression of inflammatory polarization associated with decreased T-cell proliferation and recovery of mitochondrial energy metabolism. Conclusion This study demonstrates how the pulmonary fibroblast-derived microenvironment can activate and differentiate T-cells to trigger local inflammation, which is part of the vascular wall remodeling process in PH.
Collapse
Affiliation(s)
- Lydie Plecitá-Hlavatá
- Laboratory of Pancreatic Islet Research, Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
| | - Andrea Brázdová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czechia
- Department of Genetics and Microbiology, Faculty of Science, Charles University, Prague, Czechia
| | - Monika Křivonosková
- Laboratory of Pancreatic Islet Research, Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czechia
| | - Cheng-Jun Hu
- Department of Craniofacial Biology School of Dental Medicine, University of Colorado, Aurora, CO, United States
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | - Tzu Phang
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | - Jan Tauber
- Laboratory of Mitochondrial Physiology, Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
| | - Min Li
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | - Hui Zhang
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | | | - Slaven Crnkovic
- Otto Loewi Research Center, Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Institute for Lung Health, Member of the German Lung Center, Giessen, Germany
| | - Grazyna Kwapiszewska
- Otto Loewi Research Center, Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Institute for Lung Health, Member of the German Lung Center, Giessen, Germany
| | - Kurt R. Stenmark
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| |
Collapse
|
10
|
Zhou W, Liu K, Zeng L, He J, Gao X, Gu X, Chen X, Jing Li J, Wang M, Wu D, Cai Z, Claesson-Welsh L, Ju R, Wang J, Zhang F, Chen Y. Targeting VEGF-A/VEGFR2 Y949 Signaling-Mediated Vascular Permeability Alleviates Hypoxic Pulmonary Hypertension. Circulation 2022; 146:1855-1881. [PMID: 36384284 DOI: 10.1161/circulationaha.122.061900] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Pulmonary hypertension (PH) is associated with increased expression of VEGF-A (vascular endothelial growth factor A) and its receptor, VEGFR2 (vascular endothelial growth factor 2), but whether and how activation of VEGF-A signal participates in the pathogenesis of PH is unclear. METHODS VEGF-A/VEGFR2 signal activation and VEGFR2 Y949-dependent vascular leak were investigated in lung samples from patients with PH and mice exposed to hypoxia. To study their mechanistic roles in hypoxic PH, we examined right ventricle systolic pressure, right ventricular hypertrophy, and pulmonary vasculopathy in mutant mice carrying knock-in of phenylalanine that replaced the tyrosine at residual 949 of VEGFR2 (Vefgr2Y949F) and mice with conditional endothelial deletion of Vegfr2 after chronic hypoxia exposure. RESULTS We show that PH leads to excessive pulmonary vascular leak in both patients and hypoxic mice, and this is because of an overactivated VEGF-A/VEGFR2 Y949 signaling axis. In the context of hypoxic PH, activation of Yes1 and c-Src and subsequent VE-cadherin phosphorylation in endothelial cells are involved in VEGFR2 Y949-induced vascular permeability. Abolishing VEGFR2 Y949 signaling by Vefgr2Y949F point mutation was sufficient to prevent pulmonary vascular permeability and inhibit macrophage infiltration and Rac1 activation in smooth muscle cells under hypoxia exposure, thereby leading to alleviated PH manifestations, including muscularization of distal pulmonary arterioles, elevated right ventricle systolic pressure, and right ventricular hypertrophy. It is important that we found that VEGFR2 Y949 signaling in myeloid cells including macrophages was trivial and dispensable for hypoxia-induced vascular abnormalities and PH. In contrast with selective blockage of VEGFR2 Y949 signaling, disruption of the entire VEGFR2 signaling by conditional endothelial deletion of Vegfr2 promotes the development of PH. CONCLUSIONS Our results support the notion that VEGF-A/VEGFR2 Y949-dependent vascular permeability is an important determinant in the pathogenesis of PH and might serve as an attractive therapeutic target pathway for this disease.
Collapse
Affiliation(s)
- Weibin Zhou
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (W.Z., J.H., M.W., D.W., J.W., Y.C.).,State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.).,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China (W.Z., J.H., J.W., Y.C.)
| | - Keli Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Lei Zeng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Jiaqi He
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (W.Z., J.H., M.W., D.W., J.W., Y.C.).,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China (W.Z., J.H., J.W., Y.C.)
| | - Xinbo Gao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Xinyu Gu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Xun Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Jing Jing Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Minghui Wang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (W.Z., J.H., M.W., D.W., J.W., Y.C.)
| | - Duoguang Wu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (W.Z., J.H., M.W., D.W., J.W., Y.C.)
| | - Zhixiong Cai
- Department of Cardiology, Shantou Central Hospital, China (Z.C.)
| | - Lena Claesson-Welsh
- Rudbeck, SciLifeLab and Beijer Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Sweden (L.C.-W.)
| | - Rong Ju
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Jingfeng Wang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (W.Z., J.H., M.W., D.W., J.W., Y.C.).,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China (W.Z., J.H., J.W., Y.C.)
| | - Feng Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China (W.Z., K.L., L.Z., X. Gao, X. Gu, X.C., J.J.L., R.J., F.Z.)
| | - Yangxin Chen
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (W.Z., J.H., M.W., D.W., J.W., Y.C.).,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China (W.Z., J.H., J.W., Y.C.)
| |
Collapse
|
11
|
Moriconi C, Dzieciatkowska M, Roy M, D'Alessandro A, Roingeard P, Lee JY, Gibb DR, Tredicine M, McGill MA, Qiu A, La Carpia F, Francis RO, Hod EA, Thomas T, Picard M, Akpan IJ, Luckey CJ, Zimring JC, Spitalnik SL, Hudson KE. Retention of functional mitochondria in mature red blood cells from patients with sickle cell disease. Br J Haematol 2022; 198:574-586. [PMID: 35670632 PMCID: PMC9329257 DOI: 10.1111/bjh.18287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/26/2022] [Accepted: 05/17/2022] [Indexed: 01/07/2023]
Abstract
Sickle cell disease (SCD) is an inherited blood disorder characterized by sickled red blood cells (RBCs), which are more sensitive to haemolysis and can contribute to disease pathophysiology. Although treatment of SCD can include RBC transfusion, patients with SCD have high rates of alloimmunization. We hypothesized that RBCs from patients with SCD have functionally active mitochondria and can elicit a type 1 interferon response. We evaluated blood samples from more than 100 patients with SCD and found elevated frequencies of mitochondria in reticulocytes and mature RBCs, as compared to healthy blood donors. The presence of mitochondria in mature RBCs was confirmed by flow cytometry, electron microscopy, and proteomic analysis. The mitochondria in mature RBCs were metabolically competent, as determined by enzymatic activities and elevated levels of mitochondria-derived metabolites. Metabolically-active mitochondria in RBCs may increase oxidative stress, which could facilitate and/or exacerbate SCD complications. Coculture of mitochondria-positive RBCs with neutrophils induced production of type 1 interferons, which are known to increase RBC alloimmunization rates. These data demonstrate that mitochondria retained in mature RBCs are functional and can elicit immune responses, suggesting that inappropriate retention of mitochondria in RBCs may play an underappreciated role in SCD complications and be an RBC alloimmunization risk factor.
Collapse
Affiliation(s)
- Chiara Moriconi
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Monika Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Micaela Roy
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Philippe Roingeard
- INSERM U1259 and Electron Microscopy Facility, Université de Tours and CHRU de Tours, Tours, France
| | - June Young Lee
- Department of Pathology and Laboratory Medicine, Division of Transfusion Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - David R Gibb
- Department of Pathology and Laboratory Medicine, Division of Transfusion Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Maria Tredicine
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marlon A McGill
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York City, New York, USA
| | - Annie Qiu
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Francesca La Carpia
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Richard O Francis
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Eldad A Hod
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Tiffany Thomas
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York City, New York, USA
| | - Imo J Akpan
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical Center, New York City, New York, USA
| | - Chance John Luckey
- Department of Pathology, University of Virginia, Charlottesville, Virginia, USA
| | - James C Zimring
- University of Virginia School of Medicine, Charlottesville, Virginia, USA.,Carter Immunology Center, University of Virginia, Charlottesville, Virginia, USA
| | - Steven L Spitalnik
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| | - Krystalyn E Hudson
- Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York City, New York, USA
| |
Collapse
|
12
|
Cunningham CM, Li M, Ruffenach G, Doshi M, Aryan L, Hong J, Park J, Hrncir H, Medzikovic L, Umar S, Arnold AP, Eghbali M. Y-Chromosome Gene, Uty, Protects Against Pulmonary Hypertension by Reducing Proinflammatory Chemokines. Am J Respir Crit Care Med 2022; 206:186-196. [PMID: 35504005 PMCID: PMC9887415 DOI: 10.1164/rccm.202110-2309oc] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Rationale: Idiopathic pulmonary arterial hypertension (PAH) is a terminal pulmonary vascular disease characterized by increased pressure, right ventricular failure, and death. PAH exhibits a striking sex bias and is up to four times more prevalent in females. Understanding the molecular basis behind sex differences could help uncover novel therapies. Objectives: We previously discovered that the Y chromosome is protective against hypoxia-induced experimental pulmonary hypertension (PH), which may contribute to sex differences in PAH. Here, we identify the gene responsible for Y-chromosome protection, investigate key downstream autosomal genes, and demonstrate a novel preclinical therapy. Methods: To test the effect of Y-chromosome genes on PH development, we knocked down each Y-chromosome gene expressed in the lung by means of intratracheal instillation of siRNA in gonadectomized male mice exposed to hypoxia and monitored changes in right ventricular and pulmonary artery hemodynamics. We compared the lung transcriptome of Uty knockdown mouse lungs to those of male and female PAH patient lungs to identify common downstream pathogenic chemokines and tested the effects of these chemokines on human pulmonary artery endothelial cells. We further inhibited the activity of these chemokines in two preclinical pulmonary hypertension models to test the therapeutic efficacy. Measurements and Main Results: Knockdown of the Y-chromosome gene Uty resulted in more severe PH measured by increased right ventricular pressure and decreased pulmonary artery acceleration time. RNA sequencing revealed an increase in proinflammatory chemokines Cxcl9 and Cxcl10 as a result of Uty knockdown. We found CXCL9 and CXCL10 significantly upregulated in human PAH lungs, with more robust upregulation in females with PAH. Treatment of human pulmonary artery endothelial cells with CXCL9 and CXCL10 triggered apoptosis. Inhibition of Cxcl9 and Cxcl10 expression in male Uty knockout mice and CXCL9 and CXCL10 activity in female rats significantly reduced PH severity. Conclusions:Uty is protective against PH. Reduction of Uty expression results in increased expression of proinflammatory chemokines Cxcl9 and Cxcl10, which trigger endothelial cell death and PH. Inhibition of CLXC9 and CXLC10 rescues PH development in multiple experimental models.
Collapse
Affiliation(s)
- Christine M. Cunningham
- Division of Molecular Medicine, Department of Anesthesiology,,School of Medicine, Stanford University, Stanford, California;,VA Palo Alto Health Care System, Palo Alto, California; and
| | - Min Li
- Division of Molecular Medicine, Department of Anesthesiology
| | | | - Mitali Doshi
- Division of Molecular Medicine, Department of Anesthesiology,,University of Massachusetts Medical School, Worcester, Massachusetts
| | - Laila Aryan
- Division of Molecular Medicine, Department of Anesthesiology
| | - Jason Hong
- Division of Molecular Medicine, Department of Anesthesiology,,Division of Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - John Park
- Division of Molecular Medicine, Department of Anesthesiology
| | - Haley Hrncir
- Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, California
| | | | - Soban Umar
- Division of Molecular Medicine, Department of Anesthesiology
| | - Arthur P. Arnold
- Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, California
| | | |
Collapse
|
13
|
Chen J, Rodriguez M, Miao J, Liao J, Jain PP, Zhao M, Zhao T, Babicheva A, Wang Z, Parmisano S, Powers R, Matti M, Paquin C, Soroureddin Z, Shyy JYJ, Thistlethwaite PA, Makino A, Wang J, Yuan JXJ. Mechanosensitive channel Piezo1 is required for pulmonary artery smooth muscle cell proliferation. Am J Physiol Lung Cell Mol Physiol 2022; 322:L737-L760. [PMID: 35318857 PMCID: PMC9076422 DOI: 10.1152/ajplung.00447.2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 01/10/2023] Open
Abstract
Concentric pulmonary vascular wall thickening due partially to increased pulmonary artery (PA) smooth muscle cell (PASMC) proliferation contributes to elevating pulmonary vascular resistance (PVR) in patients with pulmonary hypertension (PH). Although pulmonary vasoconstriction may be an early contributor to increasing PVR, the transition of contractile PASMCs to proliferative PASMCs may play an important role in the development and progression of pulmonary vascular remodeling in PH. A rise in cytosolic Ca2+ concentration ([Ca2+]cyt) is a trigger for PASMC contraction and proliferation. Here, we report that upregulation of Piezo1, a mechanosensitive cation channel, is involved in the contractile-to-proliferative phenotypic transition of PASMCs and potential development of pulmonary vascular remodeling. By comparing freshly isolated PA (contractile PASMCs) and primary cultured PASMCs (from the same rat) in a growth medium (proliferative PASMCs), we found that Piezo1, Notch2/3, and CaSR protein levels were significantly higher in proliferative PASMCs than in contractile PASMCs. Upregulated Piezo1 was associated with an increase in expression of PCNA, a marker for cell proliferation, whereas downregulation (with siRNA) or inhibition (with GsMTx4) of Piezo1 attenuated PASMC proliferation. Furthermore, Piezo1 in the remodeled PA from rats with experimental PH was upregulated compared with PA from control rats. These data indicate that PASMC contractile-to-proliferative phenotypic transition is associated with the transition or adaptation of membrane channels and receptors. Upregulated Piezo1 may play a critical role in PASMC phenotypic transition and PASMC proliferation. Upregulation of Piezo1 in proliferative PASMCs may likely be required to provide sufficient Ca2+ to assure nuclear/cell division and PASMC proliferation, contributing to the development and progression of pulmonary vascular remodeling in PH.
Collapse
Affiliation(s)
- Jiyuan Chen
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
- State Key Laboratory of Respiratory Disease and First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Marisela Rodriguez
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Jinrui Miao
- State Key Laboratory of Respiratory Disease and First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jing Liao
- State Key Laboratory of Respiratory Disease and First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Pritesh P Jain
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Manjia Zhao
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Tengteng Zhao
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Aleksandra Babicheva
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Ziyi Wang
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
- State Key Laboratory of Respiratory Disease and First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Sophia Parmisano
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Ryan Powers
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Moreen Matti
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Cole Paquin
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Zahra Soroureddin
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - John Y-J Shyy
- Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Patricia A Thistlethwaite
- Division of Cardiothoracic Surgery, Department of Surgery, University of California, San Diego, La Jolla, California
| | - Ayako Makino
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Jian Wang
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
- State Key Laboratory of Respiratory Disease and First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jason X-J Yuan
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California
| |
Collapse
|
14
|
Funk-Hilsdorf TC, Behrens F, Grune J, Simmons S. Dysregulated Immunity in Pulmonary Hypertension: From Companion to Composer. Front Physiol 2022; 13:819145. [PMID: 35250621 PMCID: PMC8891568 DOI: 10.3389/fphys.2022.819145] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 01/20/2022] [Indexed: 12/26/2022] Open
Abstract
Pulmonary hypertension (PH) represents a grave condition associated with high morbidity and mortality, emphasizing a desperate need for innovative and targeted therapeutic strategies. Cumulative evidence suggests that inflammation and dysregulated immunity interdependently affect maladaptive organ perfusion and congestion as hemodynamic hallmarks of the pathophysiology of PH. The role of altered cellular and humoral immunity in PH gains increasing attention, especially in pulmonary arterial hypertension (PAH), revealing novel mechanistic insights into the underlying immunopathology. Whether these immunophysiological aspects display a universal character and also hold true for other types of PH (e.g., PH associated with left heart disease, PH-LHD), or whether there are unique immunological signatures depending on the underlying cause of disease are points of consideration and discussion. Inflammatory mediators and cellular immune circuits connect the local inflammatory landscape in the lung and heart through inter-organ communication, involving, e.g., the complement system, sphingosine-1-phosphate (S1P), cytokines and subsets of, e.g., monocytes, macrophages, natural killer (NK) cells, dendritic cells (DCs), and T- and B-lymphocytes with distinct and organ-specific pro- and anti-inflammatory functions in homeostasis and disease. Perivascular macrophage expansion and monocyte recruitment have been proposed as key pathogenic drivers of vascular remodeling, the principal pathological mechanism in PAH, pinpointing toward future directions of anti-inflammatory therapeutic strategies. Moreover, different B- and T-effector cells as well as DCs may play an important role in the pathophysiology of PH as an imbalance of T-helper-17-cells (TH17) activated by monocyte-derived DCs, a potentially protective role of regulatory T-cells (Treg) and autoantibody-producing plasma cells occur in diverse PH animal models and human PH. This article highlights novel aspects of the innate and adaptive immunity and their interaction as disease mediators of PH and its specific subtypes, noticeable inflammatory mediators and summarizes therapeutic targets and strategies arising thereby.
Collapse
Affiliation(s)
- Teresa C. Funk-Hilsdorf
- Junior Research Group “Immunodynamics”, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Laboratory of Lung Vascular Research, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Felix Behrens
- Junior Research Group “Immunodynamics”, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Laboratory of Lung Vascular Research, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Jana Grune
- Laboratory of Lung Vascular Research, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Szandor Simmons
- Junior Research Group “Immunodynamics”, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Laboratory of Lung Vascular Research, Institute of Physiology, Charité – Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
- *Correspondence: Szandor Simmons,
| |
Collapse
|
15
|
Cell-to-Cell Crosstalk: A New Insight into Pulmonary Hypertension. Rev Physiol Biochem Pharmacol 2022; 184:159-179. [PMID: 35380274 DOI: 10.1007/112_2022_70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Pulmonary hypertension (PH) is a disease with high pulmonary arterial pressure, pulmonary vasoconstriction, pulmonary vascular remodeling, and microthrombosis in complex plexiform lesions, but it has been unclear of the exact mechanism of PH. A new understanding of the pathogenesis of PH is occurred and focused on the role of crosstalk between the cells on pulmonary vessels and pulmonary alveoli. It was found that the crosstalks among the endothelial cells, smooth muscle cells, fibroblasts, pericytes, alveolar epithelial cells, and macrophages play important roles in cell proliferation, migration, inflammation, and so on. Therefore, the heterogeneity of multiple pulmonary blood vessels and alveolar cells and tracking the transmitters of cell communication could be conducive to the further insights into the pathogenesis of PH to discover the potential therapeutic targets for PH.
Collapse
|
16
|
Buehler PW, Swindle D, Pak DI, Fini MA, Hassell K, Nuss R, Wilkerson RB, D’Alessandro A, Irwin DC. Murine models of sickle cell disease and beta-thalassemia demonstrate pulmonary hypertension with distinctive features. Pulm Circ 2021; 11:20458940211055996. [PMID: 34777785 PMCID: PMC8579334 DOI: 10.1177/20458940211055996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/21/2021] [Indexed: 01/26/2023] Open
Abstract
Sickle cell anemia and β-thalassemia intermedia are very different genetically determined hemoglobinopathies predisposing to pulmonary hypertension. The etiologies responsible for the associated development of pulmonary hypertension in both diseases are multi-factorial with extensive mechanistic contributors described. Both sickle cell anemia and β-thalassemia intermedia present with intra and extravascular hemolysis. And because sickle cell anemia and β-thalassemia intermedia share features of extravascular hemolysis, macrophage iron excess and anemia we sought to characterize the common features of the pulmonary hypertension phenotype, cardiac mechanics, and function as well as lung and right ventricular metabolism. Within the concept of iron, we have defined a unique pulmonary vascular iron accumulation in lungs of sickle cell anemia pulmonary hypertension patients at autopsy. This observation is unlike findings in idiopathic or other forms of pulmonary arterial hypertension. In this study, we hypothesized that a common pathophysiology would characterize the pulmonary hypertension phenotype in sickle cell anemia and β-thalassemia intermedia murine models. However, unlike sickle cell anemia, β-thalassemia is also a disease of dyserythropoiesis, with increased iron absorption and cellular iron extrusion. This process is mediated by high erythroferrone and low hepcidin levels as well as dysregulated iron transport due transferrin saturation, so there may be differences as well. Herein we describe common and divergent features of pulmonary hypertension in aged Berk-ss (sickle cell anemia) and Hbbth/3+ (intermediate β-thalassemia) mice and suggest translational utility as proof-of-concept models to study pulmonary hypertension therapeutics specific to genetic anemias.
Collapse
Affiliation(s)
- Paul W. Buehler
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA
- The Center for Blood Oxygen Transport, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
- Paul W. Buehler, Department of Pathology University of Maryland School of Medicine, HSF III, 8th Floor, Room 8180, Baltimore, MD 21201, USA. David C. Irwin, Department of Cardiology, University of Colorado Anschutz, Medical Campus Research Building 2, B133, Room 8121 Aurora, Colorado 80045, USA.
| | - Delaney Swindle
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| | - David I. Pak
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| | - Mehdi A. Fini
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| | - Kathryn Hassell
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - Rachelle Nuss
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - Rebecca B. Wilkerson
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - Angelo D’Alessandro
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, USA
| | - David C. Irwin
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA
| |
Collapse
|
17
|
Kumar S, Frid MG, Zhang H, Li M, Riddle S, Brown RD, Yadav SC, Roy MK, Dzieciatkowska ME, D'Alessandro A, Hansen KC, Stenmark KR. Complement-containing small extracellular vesicles from adventitial fibroblasts induce proinflammatory and metabolic reprogramming in macrophages. JCI Insight 2021; 6:e148382. [PMID: 34499621 PMCID: PMC8663554 DOI: 10.1172/jci.insight.148382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 09/08/2021] [Indexed: 12/15/2022] Open
Abstract
Pulmonary hypertension (PH) is a severe cardiopulmonary disease characterized by complement-dependent, fibroblast-induced perivascular accumulation and proinflammatory activation of macrophages. We hypothesized that, in PH, nanoscale-sized small extracellular vesicles (sEVs), released by perivascular/adventitial fibroblasts, are critical mediators of complement-dependent proinflammatory activation of macrophages. Pulmonary adventitial fibroblasts were isolated from calves with severe PH (PH-Fibs) and age-matched controls (CO-Fibs). PH-Fibs exhibited increased secretion of sEVs, compared with CO-Fibs, and sEV biological activity was tested on mouse and bovine bone marrow-derived macrophages (BMDMs) and showed similar responses. Compared with sEVs derived from CO-Fibs, sEVs derived from PH-Fibs (PH-Fib-sEVs) induced augmented expression of proinflammatory cytokines/chemokines and metabolic genes in BMDMs. Pharmacological blockade of exosome release from PH-Fibs resulted in significant attenuation of proinflammatory activation of BMDMs. "Bottom-up" proteomic analyses revealed significant enrichment of complement and coagulation cascades in PH-Fib-sEVs, including augmented expression of the complement component C3. We therefore examined whether the PH-Fib-sEV-mediated proinflammatory activation of BMDMs was complement C3 dependent. Treatment of PH-Fibs with siC3-RNA significantly attenuated the capacity of PH-Fib-sEVs for proinflammatory activation of BMDMs. PH-Fib-sEVs mediated proglycolytic alterations and complement-dependent activation of macrophages toward a proinflammatory phenotype, as confirmed by metabolomic studies. Thus, fibroblast-released sEVs served as critical mediators of complement-induced perivascular/microenvironmental inflammation in PH.
Collapse
Affiliation(s)
- Sushil Kumar
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Maria G Frid
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Hui Zhang
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Min Li
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Suzette Riddle
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - R Dale Brown
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | | | - Micaela K Roy
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Monika E Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kurt R Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| |
Collapse
|