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Jiang Y, Song S, Liu J, Zhang L, Guo X, Lu J, Li L, Yang C, Fu Q, Zeng B. Epigenetic regulation of programmed cell death in hypoxia-induced pulmonary arterial hypertension. Front Immunol 2023; 14:1206452. [PMID: 37753070 PMCID: PMC10518698 DOI: 10.3389/fimmu.2023.1206452] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/28/2023] [Indexed: 09/28/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a severe progressive disease that may cause early right ventricular failure and eventual cardiac failure. The pathogenesis of PAH involves endothelial dysfunction, aberrant proliferation of pulmonary artery smooth muscle cells (PASMCs), and vascular fibrosis. Hypoxia has been shown to induce elevated secretion of vascular endothelial growth factor (VEGF), leading to the development of hypoxic PAH. However, the molecular mechanisms underlying hypoxic PAH remain incompletely understood. Programmed cell death (PCD) is a natural cell death and regulated by certain genes. Emerging evidence suggests that apoptotic resistance contributes to the development of PAH. Moreover, several novel types of PCD, such as autophagy, pyroptosis, and ferroptosis, have been reported to be involved in the development of PAH. Additionally, multiple diverse epigenetic mechanisms including RNA methylation, DNA methylation, histone modification, and the non-coding RNA molecule-mediated processes have been strongly linked to the development of PAH. These epigenetic modifications affect the expression of genes, which produce important changes in cellular biological processes, including PCD. Consequently, a better understanding of the PCD processes and epigenetic modification involved in PAH will provide novel, specific therapeutic strategies for diagnosis and treatment. In this review, we aim to discuss recent advances in epigenetic mechanisms and elucidate the role of epigenetic modifications in regulating PCD in hypoxia-induced PAH.
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Affiliation(s)
- Yuan Jiang
- College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, China
| | - Shasha Song
- College of Pharmacy, Shenzhen Technology University, Shenzhen, China
| | - Jingxin Liu
- College of Pharmacy, Shenzhen Technology University, Shenzhen, China
| | - Liyuan Zhang
- Shanghai Baoxing Biological Equipment Engineering Co., Ltd, Shanghai, China
| | - Xiaofei Guo
- National Engineering Research Center for Marine Aquaculture, Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, China
| | - Jiayao Lu
- College of Pharmacy, Shenzhen Technology University, Shenzhen, China
| | - Lie Li
- Shenzhen Reyson Biotechnology Co., Ltd, Shenzhen, China
- Nanjing Evertop Electronics Ltd., Nanjing, China
| | - Chao Yang
- National Engineering Research Center for Marine Aquaculture, Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, China
| | - Qiang Fu
- College of Pharmacy, Shenzhen Technology University, Shenzhen, China
| | - Bin Zeng
- College of Pharmacy, Shenzhen Technology University, Shenzhen, China
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Wang E, Zhou S, Zeng D, Wang R. Molecular regulation and therapeutic implications of cell death in pulmonary hypertension. Cell Death Discov 2023; 9:239. [PMID: 37438344 DOI: 10.1038/s41420-023-01535-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 07/14/2023] Open
Abstract
Pulmonary hypertension (PH) is a clinical and pathophysiological syndrome caused by changes in pulmonary vascular structure or function that results in increased pulmonary vascular resistance and pulmonary arterial pressure, and it is characterized by pulmonary endothelial dysfunction, pulmonary artery media thickening, pulmonary vascular remodeling, and right ventricular hypertrophy, all of which are driven by an imbalance between the growth and death of pulmonary vascular cells. Programmed cell death (PCD), different from cell necrosis, is an active cellular death mechanism that is activated in response to both internal and external factors and is precisely regulated by cells. More than a dozen PCD modes have been identified, among which apoptosis, autophagy, pyroptosis, ferroptosis, necroptosis, and cuproptosis have been proven to be involved in the pathophysiology of PH to varying degrees. This article provides a summary of the regulatory patterns of different PCD modes and their potential effects on PH. Additionally, it describes the current understanding of this complex and interconnected process and analyzes the therapeutic potential of targeting specific PCD modes as molecular targets.
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Affiliation(s)
- Enze Wang
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei, 230022, China
| | - Sijing Zhou
- Department of Occupational Disease, Hefei third clinical college of Anhui Medical University, Hefei, 230022, China
| | - Daxiong Zeng
- Department of pulmonary and critical care medicine, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou, 215006, China.
| | - Ran Wang
- Department of respiratory and critical care medicine, the first affiliated hospital of Anhui medical university, Hefei, 230022, China.
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Wang J, Chen H, Zhang Y, Jiang S, Zeng X, Shen H. Comprehensive Analysis of Differentially Expressed CircRNAs in the Ovaries of Low- and High-Fertility Sheep. Animals (Basel) 2023; 13:ani13020236. [PMID: 36670776 PMCID: PMC9854751 DOI: 10.3390/ani13020236] [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: 11/28/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
CircRNAs are essential in regulating follicle growth and development and the female reproductive system at multiple levels. However, the molecular mechanism by which circRNAs regulate reproduction in sheep is unclear and requires further exploration. In this study, RNA sequencing was performed to reveal the circRNA expression profiles in the ovaries of Cele black sheep and Hetian sheep during estrus. Analysis of the number of circRNAs in their host genes revealed that 5031 genes could produce 20,835 circRNAs. Among the differentially expressed circRNAs (DEcircRNA), 75 were upregulated, and 105 were downregulated. Functional enrichment analysis showed that the host genes of DEcircRNA were involved in several pathways, including the MAPK and Hippo signaling pathway. In addition, we constructed a subnetwork of competitive endogenous RNA (ceRNA) containing 4 mRNAs, 4 microRNAs (miRNAs), and 10 circRNAs, potentially related to follicle development. Functional circRNAs (e.g., novel_circ_0003851, novel_circ_0015526, novel_circ_0008117) were found to act as ceRNAs for follicle growth and development-related mRNAs (CUEDC1, KPNB1, ZFPM2) by sponging functional miRNAs (miR-29a, miR-29b, miR-17-5p). Finally, through an RNA pull-down assay, oar-miR-125b was selected and confirmed as the target miRNA of novel-circ-0041512. We analyzed the overall expression of circRNAs in sheep ovaries. Further, we explored the potential mechanisms underlying the circRNA functions, providing a theoretical basis for the genetic progress of reproductive traits in sheep.
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Affiliation(s)
- Jinglei Wang
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Hanying Chen
- School of Pharmacy, Shihezi University, Shihezi 832003, China
| | - Yongsheng Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Song Jiang
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
| | - Xiancun Zeng
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
- Correspondence: (X.Z.); (H.S.); Tel.: +86-13779204376 (X.Z.); Fax: +86-0993-2058839 (X.Z.)
| | - Hong Shen
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
- Correspondence: (X.Z.); (H.S.); Tel.: +86-13779204376 (X.Z.); Fax: +86-0993-2058839 (X.Z.)
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Liu H, Zhang S, Liu Y, Ma J, Chen W, Yin T, Li T, Liang B, Tao L. Knockdown of HSP110 attenuates hypoxia-induced pulmonary hypertension in mice through suppression of YAP/TAZ-TEAD4 pathway. Respir Res 2022; 23:209. [PMID: 35986277 PMCID: PMC9389662 DOI: 10.1186/s12931-022-02124-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 07/26/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Pulmonary hypertension (PH) is a progressive and fatal cardiopulmonary disease characterized by pulmonary vascular remodeling and increased pulmonary vascular resistance and artery pressure. Vascular remodeling is associated with the excessive cell proliferation and migration of pulmonary artery smooth muscle cells (PASMCs). In this paper, the effects of heat shock protein-110 (HSP110) on PH were investigated.
Methods
The C57BL/6 mice and human PASMCs (HPASMCs) were respectively exposed to hypoxia to establish and simulate PH model in vivo and cell experiment in vitro. To HSP110 knockdown, the hypoxia mice and HPASMCs were infected with adeno-associated virus or adenovirus carring the shRNAs (short hairpin RNAs) for HSP110 (shHSP110). For HSP110 and yes-associated protein (YAP) overexpression, HPASMCs were infected with adenovirus vector carring the cDNA of HSP110 or YAP. The effects of HSP110 on PH development in mice and cell proliferation, migration and autophagy of PASMCs under hypoxia were assessed. Moreover, the regulatory mechanisms among HSP110, YAP and TEA domain transcription factor 4 (TEAD4) were investigated.
Results
We demonstrated that expression of HSP110 was significantly increased in the pulmonary arteries of mice and HPASMCs under hypoxia. Moreover, knockdown of HSP110 alleviated hypoxia-induced right ventricle systolic pressure, vascular wall thickening, right ventricular hypertrophy, autophagy and proliferation of PASMCs in mice. In addition, knockdown of HSP110 inhibited the increases of proliferation, migration and autophagy of HPASMCs that induced by hypoxia in vitro. Mechanistically, HSP110 knockdown inhibited YAP and transcriptional co-activator with PDZ-binding motif (TAZ) activity and TEAD4 nuclear expression under hypoxia. However, overexpression of HSP110 exhibited the opposite results in HPASMCs. Additionally, overexpression of YAP partially restored the effects of shHSP110 on HPASMCs. The interaction of HSP110 and YAP was verified. Moreover, TEAD4 could promote the transcriptional activity of HSP110 by binding to the HSP110 promoter under hypoxia.
Conclusions
Our findings suggest that HSP110 might contribute to the development of PH by regulating the proliferation, migration and autophagy of PASMCs through YAP/TAZ-TEAD4 pathway, which may help to understand deeper the pathogenic mechanism in PH development.
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Sun JC, Tan X, Ge LJ, Xu MJ, Wang WZ. The Release of Nitric Oxide Is Involved in the β-Arrestin1-Induced Antihypertensive Effect in the Rostral Ventrolateral Medulla. Front Physiol 2021; 12:694135. [PMID: 34220554 PMCID: PMC8249856 DOI: 10.3389/fphys.2021.694135] [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: 04/12/2021] [Accepted: 05/18/2021] [Indexed: 11/25/2022] Open
Abstract
β-Arrestin1 is a multifunctional scaffold protein with the ability to interact with diverse signaling molecules independent of G protein-coupled receptors. We previously reported that overexpression of β-arrestin1 in the rostral ventrolateral medulla (RVLM) decreased blood pressure (BP) and renal sympathetic nerve activity (RSNA) in spontaneously hypertensive rats (SHRs). Nitric oxide (NO) is widely reported to be involved in central cardiovascular regulation. The goal of this study was to investigate whether NO signaling contributes to the β-arrestin1-mediated antihypertensive effect in the RVLM. It was found that bilateral injection of adeno-associated virus containing Arrb1 gene (AAV-Arrb1) into the RVLM of SHRs significantly increased NO production and NO synthase (NOS) activity. Microinjection of the non-selective NOS inhibitor N-nitro-L-arginine methyl ester (L-NAME; 10 nmol) into the RVLM prevented the β-arrestin1-induced cardiovascular inhibitory effect. Furthermore, β-arrestin1 overexpression in the RVLM significantly upregulated the expression of phosphorylated neuronal NOS (nNOS) by 3.8-fold and extracellular regulated kinase 1/2 (ERK1/2) by 5.6-fold in SHRs. The β-arrestin1-induced decrease in BP and RSNA was significantly abolished by treatment with ERK1/2 small interfering RNA (ERK1/2 siRNA). Moreover, ERK1/2 siRNA attenuated the β-arrestin1-induced NO production, NOS activity, and nNOS phosphorylation in the RVLM. Taken together, these data demonstrate that the antihypertensive effect of β-arrestin1 in the RVLM is mediated by nNOS-derived NO release, which is associated with ERK1/2 activation.
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Affiliation(s)
- Jia-Cen Sun
- Polar Medical Research Center and Department of Physiology, Naval Medical Center, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Xing Tan
- Polar Medical Research Center and Department of Physiology, Naval Medical Center, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Lian-Jie Ge
- Polar Medical Research Center and Department of Physiology, Naval Medical Center, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Ming-Juan Xu
- Department of Obstetrics and Gynecology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Wei-Zhong Wang
- Polar Medical Research Center and Department of Physiology, Naval Medical Center, Naval Medical University (Second Military Medical University), Shanghai, China
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