1
|
Awad KS, Wang S, Dougherty EJ, Keshavarz A, Demirkale CY, Yu ZX, Miller L, Elinoff JM, Danner RL. BMPR2 Loss Activates AKT by Disrupting DLL4/NOTCH1 and PPARγ Signaling in Pulmonary Arterial Hypertension. Int J Mol Sci 2024; 25:5403. [PMID: 38791441 PMCID: PMC11121464 DOI: 10.3390/ijms25105403] [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: 04/16/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive cardiopulmonary disease characterized by pathologic vascular remodeling of small pulmonary arteries. Endothelial dysfunction in advanced PAH is associated with proliferation, apoptosis resistance, and endothelial to mesenchymal transition (EndoMT) due to aberrant signaling. DLL4, a cell membrane associated NOTCH ligand, plays a pivotal role maintaining vascular integrity. Inhibition of DLL4 has been associated with the development of pulmonary hypertension, but the mechanism is incompletely understood. Here we report that BMPR2 silencing in pulmonary artery endothelial cells (PAECs) activated AKT and suppressed the expression of DLL4. Consistent with these in vitro findings, increased AKT activation and reduced DLL4 expression was found in the small pulmonary arteries of patients with PAH. Increased NOTCH1 activation through exogenous DLL4 blocked AKT activation, decreased proliferation and reversed EndoMT. Exogenous and overexpression of DLL4 induced BMPR2 and PPRE promoter activity, and BMPR2 and PPARG mRNA in idiopathic PAH (IPAH) ECs. PPARγ, a nuclear receptor associated with EC homeostasis, suppressed by BMPR2 loss was induced and activated by DLL4/NOTCH1 signaling in both BMPR2-silenced and IPAH ECs, reversing aberrant phenotypic changes, in part through AKT inhibition. Directly blocking AKT or restoring DLL4/NOTCH1/PPARγ signaling may be beneficial in preventing or reversing the pathologic vascular remodeling of PAH.
Collapse
MESH Headings
- Humans
- Proto-Oncogene Proteins c-akt/metabolism
- Signal Transduction
- Bone Morphogenetic Protein Receptors, Type II/metabolism
- Bone Morphogenetic Protein Receptors, Type II/genetics
- PPAR gamma/metabolism
- PPAR gamma/genetics
- Receptor, Notch1/metabolism
- Receptor, Notch1/genetics
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Endothelial Cells/metabolism
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Calcium-Binding Proteins/metabolism
- Calcium-Binding Proteins/genetics
- Pulmonary Arterial Hypertension/metabolism
- Pulmonary Arterial Hypertension/genetics
- Pulmonary Arterial Hypertension/pathology
- Male
- Cell Proliferation
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/pathology
- Female
- Cells, Cultured
Collapse
Affiliation(s)
- Keytam S. Awad
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Shuibang Wang
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Edward J. Dougherty
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Ali Keshavarz
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Cumhur Y. Demirkale
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Zu Xi Yu
- Critical Care Medicine and Pulmonary Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA; (Z.X.Y.); (J.M.E.)
| | - Latonia Miller
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Jason M. Elinoff
- Critical Care Medicine and Pulmonary Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA; (Z.X.Y.); (J.M.E.)
| | - Robert L. Danner
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
- Critical Care Medicine and Pulmonary Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA; (Z.X.Y.); (J.M.E.)
| |
Collapse
|
2
|
彭 威, 张 泽, 肖 云. [Research progress on bioinformatics in pulmonary arterial hypertension]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2024; 26:425-431. [PMID: 38660909 PMCID: PMC11057300 DOI: 10.7499/j.issn.1008-8830.2310076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/26/2024] [Indexed: 04/26/2024]
Abstract
Pulmonary arterial hypertension (PAH) is a severe disease characterized by abnormal pulmonary vascular remodeling and increased right ventricular pressure load, posing a significant threat to patient health. While some pathological mechanisms of PAH have been revealed, the deeper mechanisms of pathogenesis remain to be elucidated. In recent years, bioinformatics has provided a powerful tool for a deeper understanding of the complex mechanisms of PAH through the integration of techniques such as multi-omics analysis, artificial intelligence, and Mendelian randomization. This review focuses on the bioinformatics methods and technologies used in PAH research, summarizing their current applications in the study of disease mechanisms, diagnosis, and prognosis assessment. Additionally, it analyzes the existing challenges faced by bioinformatics and its potential applications in the clinical and basic research fields of PAH in the future.
Collapse
Affiliation(s)
| | - 泽盈 张
- 中南大学湘雅二医院心血管内科,湖南长沙410007
| | | |
Collapse
|
3
|
Mai H, Yang X, Xie Y, Zhou J, Wei Y, Luo T, Yang J, Cui P, Ye L, Liang H, Huang J. Identification of the shared hub gene signatures and molecular mechanisms between HIV-1 and pulmonary arterial hypertension. Sci Rep 2024; 14:7048. [PMID: 38528047 DOI: 10.1038/s41598-024-55645-x] [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: 09/12/2023] [Accepted: 02/26/2024] [Indexed: 03/27/2024] Open
Abstract
The close link between HIV-1 infection and the occurrence of pulmonary arterial hypertension (PAH). However, the underlying molecular mechanisms of their interrelation remain unclear. The microarray data of HIV-1 and PAH were downloaded from GEO database. We utilized WGCNA to identify shared genes between HIV-1 and PAH, followed by conducting GO and pathway enrichment analyses. Subsequently, differentially genes analysis was performed using external validation datasets to further filter hub genes. Immunoinfiltration analysis was performed using CIBERSORT. Finally, hub gene expression was validated using scRNA-seq data. We identified 109 shared genes through WGCNA, primarily enriched in type I interferon (IFN) pathways. By taking the intersection of WGCNA important module genes and DEGs, ISG15 and IFI27 were identified as pivotal hub genes. Immunoinfiltration analysis and scRNA-seq results indicated the significant role of monocytes in the shared molecular mechanisms of HIV-1 and PAH. In summary, our study illustrated the possible mechanism of PAH secondary to HIV-1 and showed that the heightened IFN response in HIV-1 might be a crucial susceptibility factor for PAH, with monocytes being pivotal cells involved in the type I IFN response pathway. This provides potential new insights for further investigating the molecular mechanisms connecting HIV-1 and PAH.
Collapse
Affiliation(s)
- Huanzhuo Mai
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Xing Yang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yulan Xie
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Jie Zhou
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Yiru Wei
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Tingyan Luo
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Jing Yang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Ping Cui
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
- Life Science Institute, Guangxi Medical University, Nanning, 530021, China
| | - Li Ye
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
| | - Hao Liang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China
- Life Science Institute, Guangxi Medical University, Nanning, 530021, China
| | - Jiegang Huang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China.
- Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Nanning, 530021, China.
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China.
| |
Collapse
|
4
|
Du Y, Zhang J, Guo K, Yin Y. Identification of potential biomarkers for idiopathic pulmonary arterial hypertension using single-cell and bulk RNA sequencing analysis. Front Genet 2024; 15:1328234. [PMID: 38586587 PMCID: PMC10995363 DOI: 10.3389/fgene.2024.1328234] [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: 10/26/2023] [Accepted: 03/12/2024] [Indexed: 04/09/2024] Open
Abstract
Idiopathic pulmonary arterial hypertension (IPAH) is a rare and severe cardiopulmonary disease with a challenging prognosis, and its underlying pathogenesis remains elusive. A comprehensive understanding of IPAH is crucial to unveil potential diagnostic markers and therapeutic targets. In this study, we investigated cellular heterogeneity and molecular pathology in IPAH using single-cell RNA sequencing (scRNA-seq) analysis. Our scRNA-seq results revealed significant alterations in three crucial signaling pathways in IPAH: the hypoxia pathway, TGF β pathway, and ROS pathway, primarily attributed to changes in gene expression within arterial endothelial cells. Moreover, through bulk RNA sequencing analysis, we identified differentially expressed genes (DEGs) enriched in GO and KEGG pathways, implicated in regulating cell adhesion and oxidative phosphorylation in IPAH lungs. Similarly, DEGs-enriched pathways in IPAH arterial endothelial cells were also identified. By integrating DEGs from three IPAH datasets and applying protein-protein interaction (PPI) analysis, we identified 12 candidate biomarkers. Subsequent validation in two additional PAH datasets led us to highlight five potential biomarkers (CTNNB1, MAPK3, ITGB1, HSP90AA1, and DDX5) with promising diagnostic significance for IPAH. Furthermore, real-time quantitative polymerase chain reaction (RT-qPCR) confirmed significant differences in the expression of these five genes in pulmonary arterial endothelial cells from PAH mice. In conclusion, our findings shed light on the pivotal role of arterial endothelial cells in the development of IPAH. Furthermore, the integration of single-cell and bulk RNA sequencing datasets allowed us to pinpoint novel candidate biomarkers for the diagnosis of IPAH. This work opens up new avenues for research and potential therapeutic interventions in IPAH management.
Collapse
Affiliation(s)
- Yan Du
- Department of Pathology, Wuxi Maternity and Child Healthcare Hospital, Affiliated Women’s Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China
| | - Jingqiu Zhang
- Department of Pathology, Wuxi Maternity and Child Healthcare Hospital, Affiliated Women’s Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China
| | - Kai Guo
- Department of Pathology, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Yongxiang Yin
- Department of Pathology, Wuxi Maternity and Child Healthcare Hospital, Affiliated Women’s Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China
| |
Collapse
|
5
|
Araya R, Men S, Uekusa Y, Yu Z, Kikuchi H, Daitoku K, Minakawa M, Kawaguchi S, Furukawa KI, Oshima Y, Imaizumi T, Seya K. The inhibitory effect of DIF-3 on polyinosinic-polycytidylic acid-induced innate immunity activation in human cerebral microvascular endothelial cells. J Pharmacol Sci 2024; 154:157-165. [PMID: 38395516 DOI: 10.1016/j.jphs.2024.01.005] [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: 08/07/2023] [Revised: 01/11/2024] [Accepted: 01/16/2024] [Indexed: 02/25/2024] Open
Abstract
For the treatment and prevention of autoinflammatory diseases, it is essential to develop the drug, regulating the innate immune system. Although differentiation-inducing factor (DIF) derivatives, extracted from the cellular slime mold, Dictyostelium discoideum, exhibit immunomodulatory effects, their effects on the regulation of innate immunity in brain are unknown. In this study, we used the human cerebral microvascular endothelial cell line, hCMEC/D3, to investigate the effects of DIF derivatives on the generation of C-X-C motif chemokine (CXCL) 10 and interferon (IFN)-β induced by polyinosinic-polycytidylic acid (poly IC). DIF-3 (1-10 μM), but not DIF-1 and DIF-2, dose-dependently inhibited the biosynthesis of not only CXCL10 but also CXCL16 and C-C motif chemokine 2 induced by poly IC. DIF-3 also strongly decreased IFN-β mRNA expression and protein release from the cells induced by poly IC through the prohibition of p65, a subtype of NF-ĸB, not interferon regulatory transcription factor 3 phosphorylation. In the docking simulation study, we confirmed that DIF-3 had a high affinity to p65. These results suggest that DIF-3 regulates the innate immune system by inhibiting TLR3/IFN-β signaling axis through the NF-ĸB phosphorylation inhibition.
Collapse
Affiliation(s)
- Ryusei Araya
- Department of Vascular Biology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Shihu Men
- Department of Thoracic and Cardiovascular Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Yoshinori Uekusa
- Division of Natural Medicines, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Zaiqiang Yu
- Department of Thoracic and Cardiovascular Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Haruhisa Kikuchi
- Division of Natural Medicines, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kazuyuki Daitoku
- Department of Thoracic and Cardiovascular Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Masahito Minakawa
- Department of Thoracic and Cardiovascular Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Shogo Kawaguchi
- Department of Vascular Biology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Ken-Ichi Furukawa
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Yoshiteru Oshima
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba-yama, Aoba-ku, Sendai, 980-8578, Japan
| | - Tadaatsu Imaizumi
- Department of Vascular Biology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Kazuhiko Seya
- Department of Vascular Biology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan.
| |
Collapse
|
6
|
Jimenez-Uribe AP, Mangos S, Hahm E. Type I IFN in Glomerular Disease: Scarring beyond the STING. Int J Mol Sci 2024; 25:2497. [PMID: 38473743 PMCID: PMC10931919 DOI: 10.3390/ijms25052497] [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: 12/31/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
The field of nephrology has recently directed a considerable amount of attention towards the stimulator of interferon genes (STING) molecule since it appears to be a potent driver of chronic kidney disease (CKD). STING and its activator, the cyclic GMP-AMP synthase (cGAS), along with intracellular RIG-like receptors (RLRs) and toll-like receptors (TLRs), are potent inducers of type I interferon (IFN-I) expression. These cytokines have been long recognized as part of the mechanism used by the innate immune system to battle viral infections; however, their involvement in sterile inflammation remains unclear. Mounting evidence pointing to the involvement of the IFN-I pathway in sterile kidney inflammation provides potential insights into the complex interplay between the innate immune system and damage to the most sensitive segment of the nephron, the glomerulus. The STING pathway is often cited as one cause of renal disease not attributed to viral infections. Instead, this pathway can recognize and signal in response to host-derived nucleic acids, which are also recognized by RLRs and TLRs. It is still unclear, however, whether the development of renal diseases depends on subsequent IFN-I induction or other processes involved. This review aims to explore the main endogenous inducers of IFN-I in glomerular cells, to discuss what effects autocrine and paracrine signaling have on IFN-I induction, and to identify the pathways that are implicated in the development of glomerular damage.
Collapse
Affiliation(s)
| | | | - Eunsil Hahm
- Department of Internal Medicine, Division of Nephrology, Rush University Medical Center, Chicago, IL 60612, USA; (A.P.J.-U.); (S.M.)
| |
Collapse
|
7
|
Ji L, Li T, Chen H, Yang Y, Lu E, Liu J, Qiao W, Chen H. The crucial regulatory role of type I interferon in inflammatory diseases. Cell Biosci 2023; 13:230. [PMID: 38124132 PMCID: PMC10734085 DOI: 10.1186/s13578-023-01188-z] [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: 10/16/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023] Open
Abstract
Type I interferon (IFN-I) plays crucial roles in the regulation of inflammation and it is associated with various inflammatory diseases including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and periodontitis, impacting people's health and quality of life. It is well-established that IFN-Is affect immune responses and inflammatory factors by regulating some signaling. However, currently, there is no comprehensive overview of the crucial regulatory role of IFN-I in distinctive pathways as well as associated inflammatory diseases. This review aims to provide a narrative of the involvement of IFN-I in different signaling pathways, mainly mediating the related key factors with specific targets in the pathways and signaling cascades to influence the progression of inflammatory diseases. As such, we suggested that IFN-Is induce inflammatory regulation through the stimulation of certain factors in signaling pathways, which displays possible efficient treatment methods and provides a reference for the precise control of inflammatory diseases.
Collapse
Affiliation(s)
- Ling Ji
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Tianle Li
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Huimin Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Yanqi Yang
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
- Division of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Eryi Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, China
| | - Jieying Liu
- Department of Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Qiao
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
| | - Hui Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
| |
Collapse
|
8
|
Dougherty EJ, Chen LY, Awad KS, Ferreyra GA, Demirkale CY, Keshavarz A, Gairhe S, Johnston KA, Hicks ME, Sandler AB, Curran CS, Krack JM, Ding Y, Suffredini AF, Solomon MA, Elinoff JM, Danner RL. Inflammation and DKK1-induced AKT activation contribute to endothelial dysfunction following NR2F2 loss. Am J Physiol Lung Cell Mol Physiol 2023; 324:L783-L798. [PMID: 37039367 PMCID: PMC10202490 DOI: 10.1152/ajplung.00171.2022] [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: 06/02/2022] [Revised: 03/28/2023] [Accepted: 04/01/2023] [Indexed: 04/12/2023] Open
Abstract
NR2F2 is expressed in endothelial cells (ECs) and Nr2f2 knockout produces lethal cardiovascular defects. In humans, reduced NR2F2 expression is associated with cardiovascular diseases including congenital heart disease and atherosclerosis. Here, NR2F2 silencing in human primary ECs led to inflammation, endothelial-to-mesenchymal transition (EndMT), proliferation, hypermigration, apoptosis-resistance, and increased production of reactive oxygen species. These changes were associated with STAT and AKT activation along with increased production of DKK1. Co-silencing DKK1 and NR2F2 prevented NR2F2-loss-induced STAT and AKT activation and reversed EndMT. Serum DKK1 concentrations were elevated in patients with pulmonary arterial hypertension (PAH) and DKK1 was secreted by ECs in response to in vitro loss of either BMPR2 or CAV1, which are genetic defects associated with the development of PAH. In human primary ECs, NR2F2 suppressed DKK1, whereas its loss conversely induced DKK1 and disrupted endothelial homeostasis, promoting phenotypic abnormalities associated with pathologic vascular remodeling. Activating NR2F2 or blocking DKK1 may be useful therapeutic targets for treating chronic vascular diseases associated with EC dysfunction.NEW & NOTEWORTHY NR2F2 loss in the endothelial lining of blood vessels is associated with cardiovascular disease. Here, NR2F2-silenced human endothelial cells were inflammatory, proliferative, hypermigratory, and apoptosis-resistant with increased oxidant stress and endothelial-to-mesenchymal transition. DKK1 was induced in NR2F2-silenced endothelial cells, while co-silencing NR2F2 and DKK1 prevented NR2F2-loss-associated abnormalities in endothelial signaling and phenotype. Activating NR2F2 or blocking DKK1 may be useful therapeutic targets for treating vascular diseases associated with endothelial dysfunction.
Collapse
Affiliation(s)
- Edward J Dougherty
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Li-Yuan Chen
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Keytam S Awad
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Gabriela A Ferreyra
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Cumhur Y Demirkale
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Ali Keshavarz
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Salina Gairhe
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Kathryn A Johnston
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Madelyn E Hicks
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Alexis B Sandler
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Colleen S Curran
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Janell M Krack
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Yi Ding
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Anthony F Suffredini
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Michael A Solomon
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Jason M Elinoff
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| | - Robert L Danner
- Clinical Center/Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, United States
| |
Collapse
|
9
|
Kong D, Huang S, Miao X, Li J, Wu Z, Shi Y, Liu H, Jiang Y, Yu X, Xie M, Shen Z, Cai J, Xi R, Gong W. The dynamic cellular landscape of grafts with acute rejection after heart transplantation. J Heart Lung Transplant 2023; 42:160-172. [PMID: 36411190 DOI: 10.1016/j.healun.2022.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Acute cellular rejection (ACR) is a major barrier to the long-term survival of cardiac allografts. Although immune cells are well known to play critical roles in ACR, the dynamic cellular landscape of allografts with ACR remains obscure. METHODS Single-cell RNA sequencing (scRNA-seq) was carried out for mouse cardiac allografts with ACR. Bioinformatic analysis was performed, and subsequent transplant experiments were conducted to validate the findings. RESULTS Despite an overall large depletion of cardiac fibroblasts (CFBs), highly expanded cytotoxic T lymphocytes and a CXCL10+Gbp2+ subcluster of CFBs were enriched within grafts at the late stage. CXCL10+Gbp2+ CFBs featured strong interferon responsiveness and high expression of chemokines and major histocompatibility complex molecules, implying their involvement in the recruitment and activation of immune cells. Cell‒cell communication analysis revealed that CXCL9/CXCL10-CXCR3 might contribute to regulating CXCL10+Gbp2+ CFB-induced chemotaxis and immune cell recruitment. In vivo transplant studies revealed the therapeutic potential of CXCR3 antagonism in transplant rejection. CONCLUSIONS The findings of our study unveiled a novel CFB subcluster that might mediate acute cardiac rejection. Targeting CXCR3 could prolong allograft survival.
Collapse
Affiliation(s)
- Deqiang Kong
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Siyuan Huang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Xiaolong Miao
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Jiaxin Li
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Zelai Wu
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Yang Shi
- School of Mathematical Sciences, Peking University, Beijing, China
| | - Han Liu
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Yuancong Jiang
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Xing Yu
- Department of Thyroid Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Mengyao Xie
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhonghua Shen
- Department of Cardiovascular Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Jinzhen Cai
- Division of Hepatology, Liver Disease Center, Organ Transplantation Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ruibin Xi
- School of Mathematical Sciences and Center for Statistical Science, Peking University, Beijing, China.
| | - Weihua Gong
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China.
| |
Collapse
|
10
|
Körbelin J, Klein J, Matuszcak C, Runge J, Harbaum L, Klose H, Hennigs JK. Transcription factors in the pathogenesis of pulmonary arterial hypertension-Current knowledge and therapeutic potential. Front Cardiovasc Med 2023; 9:1036096. [PMID: 36684555 PMCID: PMC9853303 DOI: 10.3389/fcvm.2022.1036096] [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: 09/03/2022] [Accepted: 11/21/2022] [Indexed: 01/09/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a disease characterized by elevated pulmonary vascular resistance and pulmonary artery pressure. Mortality remains high in severe cases despite significant advances in management and pharmacotherapy. Since currently approved PAH therapies are unable to significantly reverse pathological vessel remodeling, novel disease-modifying, targeted therapeutics are needed. Pathogenetically, PAH is characterized by vessel wall cell dysfunction with consecutive remodeling of the pulmonary vasculature and the right heart. Transcription factors (TFs) regulate the process of transcribing DNA into RNA and, in the pulmonary circulation, control the response of pulmonary vascular cells to macro- and microenvironmental stimuli. Often, TFs form complex protein interaction networks with other TFs or co-factors to allow for fine-tuning of gene expression. Therefore, identification of the underlying molecular mechanisms of TF (dys-)function is essential to develop tailored modulation strategies in PAH. This current review provides a compendium-style overview of TFs and TF complexes associated with PAH pathogenesis and highlights their potential as targets for vasculoregenerative or reverse remodeling therapies.
Collapse
Affiliation(s)
- Jakob Körbelin
- ENDomics Lab, Department of Medicine, Center of Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,*Correspondence: Jakob Körbelin,
| | - Julius Klein
- ENDomics Lab, Department of Medicine, Center of Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,Division of Pneumology and Center for Pulmonary Arterial Hypertension Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christiane Matuszcak
- ENDomics Lab, Department of Medicine, Center of Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,Division of Pneumology and Center for Pulmonary Arterial Hypertension Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Runge
- ENDomics Lab, Department of Medicine, Center of Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,Division of Pneumology and Center for Pulmonary Arterial Hypertension Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lars Harbaum
- Division of Pneumology and Center for Pulmonary Arterial Hypertension Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hans Klose
- Division of Pneumology and Center for Pulmonary Arterial Hypertension Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan K. Hennigs
- ENDomics Lab, Department of Medicine, Center of Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,Division of Pneumology and Center for Pulmonary Arterial Hypertension Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,Jan K. Hennigs,
| |
Collapse
|
11
|
Li Q, Hujiaaihemaiti M, Wang J, Uddin MN, Li MY, Aierken A, Wu Y. Identifying key transcription factors and miRNAs coregulatory networks associated with immune infiltrations and drug interactions in idiopathic pulmonary arterial hypertension. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2023; 20:4153-4177. [PMID: 36899621 DOI: 10.3934/mbe.2023194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
BACKGROUND The deregulated genetic factors are critically associated with idiopathic pulmonary arterial hypertension (IPAH) development and progression. However, the identification of hub-transcription factors (TFs) and miRNA-hub-TFs co-regulatory network-mediated pathogenesis in IPAH remains lacking. METHODS We used GSE48149, GSE113439, GSE117261, GSE33463, and GSE67597 for identifying key genes and miRNAs in IPAH. We used a series of bioinformatics approaches, including R packages, protein-protein interaction (PPI) network, and gene set enrichment analysis (GSEA) to identify the hub-TFs and miRNA-hub-TFs co-regulatory networks in IPAH. Also, we employed a molecular docking approach to evaluate the potential protein-drug interactions. RESULTS We found that 14 TFs encoding genes, including ZNF83, STAT1, NFE2L3, and SMARCA2 are upregulated, and 47 TFs encoding genes, including NCOR2, FOXA2, NFE2, and IRF5 are downregulated in IPAH relative to the control. Then, we identified the differentially expressed 22 hub-TFs encoding genes, including four upregulated (STAT1, OPTN, STAT4, and SMARCA2) and 18 downregulated (such as NCOR2, IRF5, IRF2, MAFB, MAFG, and MAF) TFs encoding genes in IPAH. The deregulated hub-TFs regulate the immune system, cellular transcriptional signaling, and cell cycle regulatory pathways. Moreover, the identified differentially expressed miRNAs (DEmiRs) are involved in the co-regulatory network with hub-TFs. The six hub-TFs encoding genes, including STAT1, MAF, CEBPB, MAFB, NCOR2, and MAFG are consistently differentially expressed in the peripheral blood mononuclear cells of IPAH patients, and these hub-TFs showed significant diagnostic efficacy in distinguishing IPAH cases from the healthy individuals. Moreover, we revealed that the co-regulatory hub-TFs encoding genes are correlated with the infiltrations of various immune signatures, including CD4 regulatory T cells, immature B cells, macrophages, MDSCs, monocytes, Tfh cells, and Th1 cells. Finally, we discovered that the protein product of STAT1 and NCOR2 interacts with several drugs with appropriate binding affinity. CONCLUSIONS The identification of hub-TFs and miRNA-hub-TFs co-regulatory networks may provide a new avenue into the mechanism of IPAH development and pathogenesis.
Collapse
Affiliation(s)
- Qian Li
- Department of General Medicine, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Minawaer Hujiaaihemaiti
- Department of General Medicine, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Jie Wang
- Department of Pharmacy, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Md Nazim Uddin
- Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka 1205, Bangladesh
| | - Ming-Yuan Li
- Department of General Medicine, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Alidan Aierken
- Department of General Medicine, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Yun Wu
- Department of General Medicine, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| |
Collapse
|
12
|
Abstract
This Review examines the state-of-the-art in the delivery of nucleic acid therapies that are directed to the vascular endothelium. First, we review the most important homeostatic functions and properties of the vascular endothelium and summarize the nucleic acid tools that are currently available for gene therapy and nucleic acid delivery. Second, we consider the opportunities available with the endothelium as a therapeutic target and the experimental models that exist to evaluate the potential of those opportunities. Finally, we review the progress to date from investigations that are directly targeting the vascular endothelium: for vascular disease, for peri-transplant therapy, for angiogenic therapies, for pulmonary endothelial disease, and for the blood-brain barrier, ending with a summary of the future outlook in this field.
Collapse
Affiliation(s)
| | | | | | - W. Mark Saltzman
- Department of Biomedical Engineering
- Department of Chemical & Environmental Engineering
- Department of Cellular & Molecular Physiology
- Department of Dermatology, Yale School of Medicine, New Haven, CT 06510
| |
Collapse
|
13
|
Hersi K, Elinoff JM. Pulmonary Hypertension Caused by Interstitial Lung Disease: A New iNK(T)ling into Disease Pathobiology. Am J Respir Crit Care Med 2022; 206:930-932. [PMID: 35772120 PMCID: PMC9801987 DOI: 10.1164/rccm.202206-1186ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Kadija Hersi
- Pulmonary Vascular Biology Section of the Critical Care Medicine DepartmentNational Institutes of Health Clinical CenterBethesda, Maryland,Division of Pulmonary and Critical Care MedicineUniversity of Maryland School of MedicineBaltimore, Maryland,National Heart, Lung and Blood InstituteNational Institutes of HealthBethesda, Maryland
| | - Jason M. Elinoff
- Pulmonary Vascular Biology Section of the Critical Care Medicine DepartmentNational Institutes of Health Clinical CenterBethesda, Maryland
| |
Collapse
|
14
|
Shi F, Chen X, Wang Y, Xie Y, Zhong J, Su K, Li M, Li Y, Lin Q, Zhou Y, Wang J, Xiong L. HOTAIR/miR-203/CAV1 Crosstalk Influences Proliferation, Migration, and Invasion in the Breast Cancer Cell. Int J Mol Sci 2022; 23:ijms231911755. [PMID: 36233075 PMCID: PMC9569926 DOI: 10.3390/ijms231911755] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
In recent years, malignant breast cancer metastasis has caused a great increase in mortality. Research on the genetic and molecular mechanisms of malignant breast cancer has continued to deepen, and targeted therapy has become the general trend. Among them, competing endogenous RNA (ceRNA)-related molecules have received much attention. Homeobox transcript antisense RNA (HOTAIR) has been reported to function extensively as a ceRNA in breast cancer. Notably, miR-203 and Caveolin 1 (CAV1) have also been found to play a role in breast cancer. However, the relationship between the three remains unclear. In this study, we present a new mechanic through bioinformatics tool and basic experiments: the HOTAIR/miR-203/CAV1 axis, which complemented the role network of HOTAIR as a ceRNA, thus, it will provide a novel potential idea for breast cancer research and therapy.
Collapse
Affiliation(s)
- Fuxiu Shi
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Xinyue Chen
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
- Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Yi Wang
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Yujie Xie
- College of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Junpei Zhong
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Kangtai Su
- First Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Miao Li
- Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Yuqiu Li
- Queen Mary School, Nanchang University, Nanchang 330006, China
| | - Qing Lin
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Youjia Zhou
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Jie Wang
- Key Laboratory of Functional and Clinical Translational Medicine, Xiamen Medical College, Fujian Province University, Xiamen 361023, China
| | - Lixia Xiong
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
- Key Laboratory of Functional and Clinical Translational Medicine, Xiamen Medical College, Fujian Province University, Xiamen 361023, China
- Correspondence: ; Tel.: +86-791-8636-0556
| |
Collapse
|
15
|
Farrell R, Colglazier E, Parker C, Stevens L, Austin ED, Fineman JR. Case Report: Caveolin‐1 Associated with Severe (Pediatric‐onset) Presentation of Pulmonary Arterial Hypertension. Pulm Circ 2022; 12:e12100. [PMID: 35864912 PMCID: PMC9294289 DOI: 10.1002/pul2.12100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 11/10/2022] Open
Abstract
There has been a growing interest in the role that genetic factors influence pediatric pulmonary vascular disease. In fact, data suggests that genetic factors contribute to ~42% of pediatric‐onset pulmonary hypertension. Although animal and human studies suggest that aberrations in Caveolin1 (CAV1) signaling participate in the development of pulmonary vascular disorders, limited reports of CAV1‐associated heritable pulmonary arterial hypertension (HPAH) exist. This is a case report of a 2‐year‐old female with late recognition of HPAH due to a CAV1 pathogenic variant: c.474del, (p.Leu159Serfs*22)(NM_001753.5). The pedigree demonstrates autosomal dominant transmission with reduced penetrance of PAH, suggestive that additional genetic or environmental factors modify PAH development. Genetic testing and the discovery of rare genetic alterations in PAH during infancy and childhood may aid in identifying disease etiologies, guide therapeutic decisions, and ultimately identify novel therapeutic targets. Moreover, CAV1 genetics implicate variable expressivity and incomplete penetrance for HPAH and underscores the utility of predictive genetic testing for unaffected family members no matter their age.
Collapse
Affiliation(s)
- R Farrell
- Department of Pediatrics UCSF Benioff Children's Hospital, San Francisco California
| | - E Colglazier
- Department of Pediatrics UCSF Benioff Children's Hospital, San Francisco California
| | - C Parker
- Department of Pediatrics UCSF Benioff Children's Hospital, San Francisco California
| | - L Stevens
- Department of Pediatrics UCSF Benioff Children's Hospital, San Francisco California
| | - ED Austin
- Department of Pediatrics Vanderbilt University Medical Center
| | - JR Fineman
- Department of Pediatrics UCSF Benioff Children's Hospital, San Francisco California
| |
Collapse
|
16
|
Xu L, Yu Z, Uekusa Y, Kawaguchi S, Kikuchi H, Daitoku K, Minagawa M, Motomura S, Furukawa KI, Oshima Y, Seya K, Imaizumi T. Elucidation of the inhibitory effect of (+)-hopeaphenol on polyinosinic–polycytidylic acid-induced innate immunity activation in human cerebral microvascular endothelial cells. J Pharmacol Sci 2022; 149:147-157. [DOI: 10.1016/j.jphs.2022.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/14/2022] [Accepted: 04/28/2022] [Indexed: 11/26/2022] Open
|
17
|
Mathew R. Critical Role of Caveolin-1 Loss/Dysfunction in Pulmonary Hypertension. Med Sci (Basel) 2021; 9:medsci9040058. [PMID: 34698188 PMCID: PMC8544475 DOI: 10.3390/medsci9040058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/17/2021] [Accepted: 09/16/2021] [Indexed: 02/07/2023] Open
Abstract
Pulmonary hypertension (PH) is a rare disease with a high morbidity and mortality rate. A number of systemic diseases and genetic mutations are known to lead to PH. The main features of PH are altered vascular relaxation responses and the activation of proliferative and anti-apoptotic pathways, resulting in pulmonary vascular remodeling, elevated pulmonary artery pressure, and right ventricular hypertrophy, ultimately leading to right heart failure and premature death. Important advances have been made in the field of pulmonary pathobiology, and several deregulated signaling pathways have been shown to be associated with PH. Clinical and experimental studies suggest that, irrespective of the underlying disease, endothelial cell disruption and/or dysfunction play a key role in the pathogenesis of PH. Endothelial caveolin-1, a cell membrane protein, interacts with and regulates several transcription factors and maintains homeostasis. Disruption of endothelial cells leads to the loss or dysfunction of endothelial caveolin-1, resulting in reciprocal activation of proliferative and inflammatory pathways, leading to cell proliferation, medial hypertrophy, and PH, which initiates PH and facilitates its progression. The disruption of endothelial cells, accompanied by the loss of endothelial caveolin-1, is accompanied by enhanced expression of caveolin-1 in smooth muscle cells (SMCs) that leads to pro-proliferative and pro-migratory responses, subsequently leading to neointima formation. The neointimal cells have low caveolin-1 and normal eNOS expression that may be responsible for promoting nitrosative and oxidative stress, furthering cell proliferation and metabolic alterations. These changes have been observed in human PH lungs and in experimental models of PH. In hypoxia-induced PH, there is no endothelial disruption, loss of endothelial caveolin-1, or enhanced expression of caveolin-1 in SMCs. Hypoxia induces alterations in membrane composition without caveolin-1 or any other membrane protein loss. However, caveolin-1 is dysfunctional, resulting in cell proliferation, medial hypertrophy, and PH. These alterations are reversible upon removal of hypoxia, provided there is no associated EC disruption. This review examined the role of caveolin-1 disruption and dysfunction in PH.
Collapse
Affiliation(s)
- Rajamma Mathew
- Section of Pediatric Cardiology, Departments of Pediatrics and Physiology, New York Medical College, Valhalla, NY 10595, USA
| |
Collapse
|