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Yang Z, Cui Y, Xu S, Li L. LncRNA HCG18 affects aortic dissection through the miR-103a-3p/HMGA2 axis by modulating proliferation and apoptosis of vascular smoothing muscle cells. Clinics (Sao Paulo) 2024; 79:100400. [PMID: 39089097 DOI: 10.1016/j.clinsp.2024.100400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/07/2024] [Accepted: 05/18/2024] [Indexed: 08/03/2024] Open
Abstract
BACKGROUND Aortic Dissection (AD) is a vascular disease with a high mortality rate and limited treatment strategies. The current research analyzed the function and regulatory mechanism of lncRNA HCG18 in AD. METHODS HCG18, miR-103a-3p, and HMGA2 levels in the aortic tissue of AD patients were examined by RT-qPCR. After transfection with relevant plasmids, the proliferation of rat aortic Vascular Smoothing Muscle Cells (VSMCs) was detected by CCK-8 and colony formation assay, Bcl-2 and Bax was measured by Western blot, and apoptosis was checked by flow cytometry. Then, the targeting relationship between miR-103a-3p and HCG18 or HMGA2 was verified by bioinformation website analysis and dual luciferase reporter assay. Finally, the effect of HCG18 was verified in an AD rat model induced by β-aminopropionitrile. RESULTS HCG18 and HMGA2 were upregulated and miR-103a-3p was downregulated in the aortic tissues of AD patients. Downregulating HCG18 or upregulating miR-103a-3p enhanced the proliferation of VSMCs and limited cell apoptosis. HCG18 promoted HMGA2 expression by competing with miR-103a-3p and restoring HMGA2 could impair the effect of HCG18 downregulation or miR-103a-3p upregulation in mediating the proliferation and apoptosis of VSMCs. In addition, down-regulation of HCG18 could improve the pathological injury of the aorta in AD rats. CONCLUSION HCG18 reduces proliferation and induces apoptosis of VSMCs through the miR-103a-3p/HMGA2 axis, thus aggravating AD.
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Affiliation(s)
- ZhiHong Yang
- Department of Invasive Technology, Ningde Municipal Hospital of Ningde Normal University, Ningde City, Fujian Province, China
| | - YuanSheng Cui
- Department of Invasive Technology, Ningde Municipal Hospital of Ningde Normal University, Ningde City, Fujian Province, China
| | - ShuGuo Xu
- Department of Invasive Technology, Ningde Municipal Hospital of Ningde Normal University, Ningde City, Fujian Province, China
| | - LongBiao Li
- Department of Invasive Technology, Ningde Municipal Hospital of Ningde Normal University, Ningde City, Fujian Province, China.
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Liu Q, Guan Y, Yang X, Jiang Y, Hei F. Perioperative oxygenation impairment related to type a aortic dissection. Perfusion 2024:2676591231224997. [PMID: 38174389 DOI: 10.1177/02676591231224997] [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: 01/05/2024]
Abstract
Type A aortic dissection (TAAD) is a life-threatening disease with high mortality and poor prognosis, usually treated by surgery. There are many complications in its perioperative period, one of which is oxygenation impairment (OI). As a common complication of TAAD, OI usually occurs throughout the perioperative period of TAAD and requires prolonged mechanical ventilation (MV) and other supportive measures. The purpose of this article is to review the risk factors, mechanisms, and treatments of type A aortic dissection-related oxygenation impairment (TAAD-OI) so as to improve clinicians' knowledge about it. Among risk factors, elevated body mass index (BMI), prolonged extracorporeal circulation (ECC) duration, higher inflammatory cells and stored blood transfusion stand out. A reduced occurrence of TAAD-OI can be achieved by controlling these risk factors such as suppressing inflammatory response by drugs. As for its mechanism, it is currently believed that inflammatory signaling pathways play a major role in this process, including the HMGB1/RAGE signaling pathway, gut-lung axis and macrophage, which have been gradually explored and are expected to provide evidences revealing the specific mechanism of TAAD-OI. Numerous treatments have been investigated for TAAD-OI, such as nitric oxide (NO), continuous pulmonary perfusion/inflation, ulinastatin and sivelestat sodium, immunomodulation intervention and mechanical support. However, these measures are all aimed at postoperative TAAD-OI, and not all of the therapies have shown satisfactory effects. Treatments for preoperative TAAD-OI are not currently available because it is difficult to correct OI without correcting the dissection. Therefore, the best solution for preoperative TAAD-OI is to operate as soon as possible. At present, there is no specific method for clinical application, and it relies more on the experience of clinicians or learns from treatments of other diseases related to oxygenation disorders. More efforts should be made to understand its pathogenesis to better improve its treatments in the future.
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Affiliation(s)
- Qindong Liu
- Department of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yulong Guan
- Department of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaofang Yang
- Department of Extracorporeal Circulation and Mechanical Circulation Assistants, Center for Cardiac Intensive Care, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yu Jiang
- Department of Extracorporeal Circulation and Mechanical Circulation Assistants, Center for Cardiac Intensive Care, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Feilong Hei
- Department of Extracorporeal Circulation and Mechanical Circulation Assistants, Center for Cardiac Intensive Care, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Yang M. Acute Lung Injury in aortic dissection : new insights in anesthetic management strategies. J Cardiothorac Surg 2023; 18:147. [PMID: 37069575 PMCID: PMC10109228 DOI: 10.1186/s13019-023-02223-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 04/02/2023] [Indexed: 04/19/2023] Open
Abstract
Acute aortic dissection (AAD) is a severe cardiovascular disease characterized by rapid progress and a high mortality rate. The incidence of acute aortic dissection is approximately 5 to 30 per 1 million people worldwide. In clinical practice, about 35% of AAD patients are complicated with acute lung injury (ALI). AAD complicated with ALI can seriously affect patients' prognosis and even increase mortality. However, the pathogenesis of AAD combined with ALI remains largely unknown. Given the public health burden of AAD combined with ALI, we reviewed the anesthetic management advances and highlighted potential areas for clinical practice.
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Affiliation(s)
- Ming Yang
- Department of Anesthesiology, Xinqiao Hospital of Chongqing, Second Affiliated Hospital of Army Medical University, PLA, Chongqing, 400037, China.
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Yuan S, Hu H, Wang X, Yang J, Zhou R, Bai X, Lai P. Bindarit Reduces Bone Loss in Ovariectomized Mice by Inhibiting CCL2 and CCL7 Expression via the NF-κB Signaling Pathway. Orthop Surg 2022; 14:1203-1216. [PMID: 35470579 PMCID: PMC9163972 DOI: 10.1111/os.13252] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 12/06/2021] [Accepted: 02/18/2022] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE To investigate the changes in proinflammatory cytokines and chemokines, namely, C-C motif ligand (CCL) 2 and CCL7, in postmenopausal osteoporosis (PMOP) and to develop a new drug, bindarit (Bnd), for PMOP in an ovariectomized (OVX) mouse model. METHODS Bone marrow macrophages (BMMs) from the femurs of five women with PMOP and five premenopausal women without osteoporosis were detected by RNA sequencing. BMMs from mice were differentiated into osteoclasts and treated with a synthetic inhibitor of CCL2 and CCL7, Bnd, or 17 beta estradiol (E2 ). Mouse BMMs were differentiated into osteoclasts with or without Bnd for 7 days and analyzed by RNA sequencing. Osteoblasts of mice were induced to undergo osteoblastogenesis and treated with Bnd. OVX mice were treated with E2 or Bnd after surgery. The protein and mRNA expression of CCL2 and CCL7 was detected using immunostaining and qPCR, respectively, in OVX and aged mice and in cells cultured in vitro. Osteoclast formation was detected using a tartrate-resistant acid phosphatase (TRAP) assay in vitro and in vivo. Alkaline phosphatase (ALP), runt-related transcription factor 2 (Runx2) and osteocalcin (OCN) were detected using immunostaining to evaluate osteogenesis. Microcomputed tomography was conducted to analyze trabecular bone parameters, the structure model index, bone mineral density and other variables. Nuclear factor-κB (NF-κB) signaling pathway-related protein phosphorylation of IKKα/β (p-IKKα/β) and p-NFκB p65 was examined using western blotting. RESULTS CCL2, CCL7 and their receptor of C-C chemokine receptor-2 (CCR2), and the NF-κB signaling pathway, were significantly increased in women with PMOP. CCL2 and CCL7 protein and mRNA expression was increased in OVX mice and aged female mice, but the increases were attenuated by E2 and Bnd. E2 and Bnd effectively inhibited osteoclastogenesis and the protein expression of CCL2 and CCL7 both in vitro and in vivo and reduced bone loss in OVX mice. Bnd did not affect the mineralization of osteoblasts directly in vitro but reduced bone turnover in vivo. p-IKKα/β and p-NFκB p65 levels were increased in BMMs of mice after differentiation into osteoclasts but were significantly decreased by Bnd. CONCLUSION The proinflammatory cytokines and chemokines CCL2, CCL7 and CCR2 were correlated with PMOP. Bnd attenuated the increases in CCL2 and CCL7 levels to affect osteoporosis in OVX mice via the NFκB signaling pathway. Thus, Bnd may be useful as a new therapeutic for the prevention of PMOP.
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Affiliation(s)
- Shi‐guo Yuan
- Department of OrthopaedicHainan Province Hospital of Traditional Chinese MedicineHaikouHainanChina
- Center for Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Hong‐ling Hu
- Center for Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Xin‐jia Wang
- Department of Spine SurgerySecond Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Jin‐cheng Yang
- Department of Spinal SurgerySouthern Medical University Nanfang HospitalGuangzhouGuangdongChina
| | - Rong‐ping Zhou
- Center for Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Xiao‐chun Bai
- Center for Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
| | - Ping‐lin Lai
- Center for Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouGuangdongChina
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Zhao X, Bie M. Preoperative acute lung injury and oxygenation impairment occurred in the patients with acute aortic dissection. BMC Cardiovasc Disord 2022; 22:129. [PMID: 35346059 PMCID: PMC8958762 DOI: 10.1186/s12872-022-02579-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/22/2022] [Indexed: 11/10/2022] Open
Abstract
AbstractAcute lung injury (ALI) and oxygenation impairment (OI) frequently occur in the patients with acute aortic dissection (AAD), which may necessitate mechanical ventilation and result in adverse outcomes. This paper aims to increase clinicians’ awareness of the severe respiratory complications in the patients with AAD, and provide the overview of the epidemiology, adverse outcomes, pathogenesis, predictive markers and therapeutic modalities of the concurrent conditions. Currently, it is considered that inflammatory response plays a great role in the pathogenesis of ALI and OI in the patients with AAD, but the definite pathogenesis remains unclear. Given the great importance of the prediction of the occurrence of the severe respiratory complication at a very early stage, some inflammatory biomarkers have been investigated to predict the occurrence of ALI and OI in several studies. C-reactive protein was found to have a significant predictive effect for the development of ALI and OI. Early use of beta-blockers and the use of bindarit could prevent the occurrence of OI and ALI. Ulinastatin could also improve oxygenation in the patients with type-A AAD. Prevention and management of ALI and OI in AAD remain a great challenge. The definite pathogenesis should be clearly clarified and further studies should be performed to look for potential effective way to predict and manage the severe respiratory conditions.
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Chen Y, Zhang T, Yao F, Gao X, Li D, Fu S, Mao L, Liu F, Zhang X, Xu Y, Deng J, Li W, Fan G, Xiao C, Chen Y, Wang L, Guo W, Zhou B. Dysregulation of interaction between LOX high fibroblast and smooth muscle cells contributes to the pathogenesis of aortic dissection. Theranostics 2022; 12:910-928. [PMID: 34976220 PMCID: PMC8692905 DOI: 10.7150/thno.66059] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/16/2021] [Indexed: 12/27/2022] Open
Abstract
Rationale: While cell-cell interaction plays a critical role in physiology and disease, a comprehensive understanding of its dynamics in vascular homeostasis and diseases is yet absent. Methods: Here, by use of single-cell RNA-sequencing and multi-color staining, we delineate the cellular composition and spatial characterization of human aorta with or without aortic dissection (AD). Results: Scrutinization of cell subtype alterations revealed significantly changed fibroblast (FB)-smooth muscle cell (SMC) interactions in AD. Of these cellular interactions, LOXhigh fibroblast (fibroblast subtype 2, FB2) in diseased state exerted the most pronounced effects on pathological deterioration of SMCs in AD. In addition, pharmacologically targeting the BMP (bone morphogenetic protein) signaling pathway effectively suppressed FB2 state transition and reduced AD incidence in mice. Finally, COL5A1 (collagen type V alpha 1 chain), one of the secreted proteins released from FB2, was significantly higher in the plasma of AD patients than in control patients, suggesting its potential use as a biomarker for AD diagnosis. Conclusions: Our work not only identified a pivotal role of a specific FB subtype in AD progression, but also shed light on cell interaction dynamics in vascular diseases.
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Zhang C, Shi R, Zhang G, Bai H, Zhang Y, Zhang L, Chen X, Fu Z, Lin G, Xu Q. The association between body mass index and risk of preoperative oxygenation impairment in patients with the acute aortic syndrome. Front Endocrinol (Lausanne) 2022; 13:1018369. [PMID: 36465611 PMCID: PMC9712723 DOI: 10.3389/fendo.2022.1018369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE The study aimed to determine the relationship between body mass index (BMI) and the risk of acute aortic syndrome (AAS) with preoperative oxygenation impairment. METHODS A meta-analysis of published observational studies involving BMI and AAS with preoperative oxygenation impairment was conducted. A total of 230 patients with AAS were enrolled for retrospective analysis. All patients were divided into 2 groups (Non-oxygenation impairment group and Oxygenation impairment group). Logistic regression analysis was performed to assess the relation between BMI and the risk of preoperative oxygenation impairment after the onset of AAS. Dose-response relationship curve and subgroup analysis were conducted to test the reliability of BMI as an independent factor of it. RESULTS For the meta-analysis, the quantitative synthesis indicated that excessive BMI increased the risk of preoperative oxygenation impairment (OR: 1.30, 95% CI: 1.05-1.60, P heterogeneity = 0.001). For the retrospective analysis, a significant association was observed after adjusting for a series of variables. BMI was significantly related to preoperative oxygenation impairment after the onset of AAS (OR: 1.34, 95% CI: 1.15-1.56, p <0.001), and compared with normal weight group (18.5 kg/m2 ≤ BMI < 23.0 kg/m2), the individuals with excessive BMI were at higher risk of preoperative oxygenation impairment for the obese group (BMI ≥ 25 kg/m2) (OR: 17.32, 95% CI: 4.03-74.48, p <0.001). A J-shape curve in dose-response relationship analysis further confirmed their positive correlation. Subgroup analysis showed that diastolic blood pressure (DBP) ≥ 90mmHg carried an excess risk of preoperative oxygenation impairment in obese patients. CONCLUSION Excessive BMI was an independent risk factor for AAS with preoperative oxygenation impairment.
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Affiliation(s)
- Chiyuan Zhang
- Department of Cardiovascular Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ruizheng Shi
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guogang Zhang
- Department of Cardiovascular Medicine, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Bai
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanfeng Zhang
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lei Zhang
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuliang Chen
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zuli Fu
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guoqiang Lin
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- *Correspondence: Guoqiang Lin, ; Qian Xu,
| | - Qian Xu
- Department of Cardiovascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- *Correspondence: Guoqiang Lin, ; Qian Xu,
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Xu Z, Zhong K, Guo G, Xu C, Song Z, Wang D, Pan J. circ_TGFBR2 Inhibits Vascular Smooth Muscle Cells Phenotypic Switch and Suppresses Aortic Dissection Progression by Sponging miR-29a. J Inflamm Res 2021; 14:5877-5890. [PMID: 34795497 PMCID: PMC8593842 DOI: 10.2147/jir.s336094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/22/2021] [Indexed: 12/20/2022] Open
Abstract
Background Aortic dissection (AD) is a threatening and catastrophic vascular disease with high mortality rate and limited therapeutic strategies. There is emerging evidence showing that circular RNAs play crucial role in regulating various cardiovascular diseases. However, the biological functions and molecular mechanisms of circRNAs in AD still remains elusive. The purpose of this study was to illustrate the potential functional roles and mechanisms of hsa_circ_TGFBR2 in vitro and in vivo. Methods The vascular smooth muscle cells (VSMCs) and AD-VSMCs were isolated from normal aorta and AD tissues. The expression of circ_TGFBR2, miR-29a and KLF4 were detected by realtime polymerase chain reaction (RT-PCR) and fluorescence in situ hybridization (FISH). Cell proliferation was assessed by CCK-8 assay, colony formation and EDU assay. Cell migration was evaluated through transwell assay. Dual-luciferase reporter assay and RNA pulldown were performed to identify the interaction between circ_TGFBR2 and miR-29a or between miR-29a and KLF4. The wild-type sequence of circ_TGFBR2 or KLF4 were cloned into the luciferase reporter plasmid, and the activity was measured using dual-luciferase reporter assay system. And for RNA pulldown, the relative RNA enrichment of circ_TGFBR2 and miR-29a were confirmed using RT-PCR. Western Blot measured the expression of phenotype switch-related proteins. AD rat model induced by β-aminopropionitrile monofumarate (BAPN) was used to verify the role and mechanism of circ_TGFBR2. Results Circ_TGFBR2 inhibited cell proliferation and migration of AD-VSMCs cells. Overexpression of circ_TGFBR2 promoted the expression of contractile markers (α-SMA, SM22α) and inhibited the expression of synthetic markers (MGP, OPN) in AD-VSMCs cells. Circ_TGFBR2 served as a sponge for miR-29a targeting KLF4. MiR-29a mimics rescued biological roles induced by circ_TGFBR2 overexpression. The in vivo experiments revealed that overexpression of TGFBR2 suppressed the progression of AD and increased the expression of contractile markers while inhibited the expression of synthetic markers. Conclusion Our study revealed that circ_TGFBR2 regulated VSMCs phenotype switch and suppressed the progression of AD.
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Affiliation(s)
- Zhenjun Xu
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Kai Zhong
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, People's Republic of China
| | - Guanjun Guo
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Can Xu
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Zhizhao Song
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Jun Pan
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
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Wang X, Zhang H, Cao L, He Y, Ma A, Guo W. The Role of Macrophages in Aortic Dissection. Front Physiol 2020; 11:54. [PMID: 32116765 PMCID: PMC7013038 DOI: 10.3389/fphys.2020.00054] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/21/2020] [Indexed: 12/21/2022] Open
Abstract
Aortic dissection (AD) is a fatal disease that accounts for a large proportion of aortic-related deaths and has an incidence of about 3–4 per 100,000 individuals every year. Recent studies have found that inflammation plays an important role in the development of AD, and that macrophages are the hub of inflammation in the aortic wall. Aortic samples from AD patients reveal a large amount of macrophage infiltration. The sites of macrophage infiltration and activity vary throughout the different stages of AD, with involvement even in the tissue repair phase of AD. Angiotensin II has been shown to be an important factor in the stimulation of macrophage activity. Stimulated macrophages can secrete metalloproteinases, inflammatory factors and other substances to cause matrix destruction, smooth muscle cell apoptosis, neovascularization and more, all of which destroy the aortic wall structure. At the same time, there are a number of factors that regulate macrophages to reduce the formation of AD and induce the repair of torn aortic tissues. The aim of this review is to take a close look at the roles of macrophages throughout the course of AD disease.
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Affiliation(s)
- Xinhao Wang
- Department of Vascular and Endovascular Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hongpeng Zhang
- Department of Vascular and Endovascular Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Long Cao
- Department of Vascular and Endovascular Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China.,Department of General Surgery, PLA No. 983 Hospital, Tianjin, China
| | - Yuan He
- Department of Vascular and Endovascular Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Airong Ma
- Department of Obstetrics, Zibo Central Hospital, Zibo, China
| | - Wei Guo
- Department of Vascular and Endovascular Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
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Wu R, Zhang PA, Liu X, Zhou Y, Xu M, Jiang X, Yan J, Xu GY. Decreased miR-325-5p Contributes to Visceral Hypersensitivity Through Post-transcriptional Upregulation of CCL2 in Rat Dorsal Root Ganglia. Neurosci Bull 2019; 35:791-801. [PMID: 30980241 DOI: 10.1007/s12264-019-00372-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 01/16/2019] [Indexed: 12/13/2022] Open
Abstract
Chronic visceral hypersensitivity is an important type of chronic pain with unknown etiology and pathophysiology. Recent studies have shown that epigenetic regulation plays an important role in the development of chronic pain conditions. However, the role of miRNA-325-5p in chronic visceral pain remains unknown. The present study was designed to determine the roles and mechanism of miRNA-325-5p in a rat model of chronic visceral pain. This model was induced by neonatal colonic inflammation (NCI). In adulthood, NCI led to a significant reduction in the expression of miRNA-325-5p in colon-related dorsal root ganglia (DRGs), starting to decrease at the age of 4 weeks and being maintained to 8 weeks. Intrathecal administration of miRNA-325-5p agomir significantly enhanced the colorectal distention (CRD) threshold in a time-dependent manner. NCI also markedly increased the expression of CCL2 (C-C motif chemokine ligand 2) in colon-related DRGs at the mRNA and protein levels relative to age-matched control rats. The expression of CXCL12, IL33, SFRS7, and LGI1 was not significantly altered in NCI rats. CCL2 was co-expressed in NeuN-positive DRG neurons but not in glutamine synthetase-positive glial cells. Furthermore, CCL2 was mainly expressed in isolectin B4-binding- and calcitonin gene-related peptide-positive DRG neurons but in few NF-200-positive cells. More importantly, CCL2 was expressed in miR-325-5p-positive DRG neurons. Intrathecal injection of miRNA-325-5p agomir remarkably reduced the upregulation of CCL2 in NCI rats. Administration of Bindarit, an inhibitor of CCL2, markedly raised the CRD threshold in NCI rats in a dose- and time-dependent manner. These data suggest that NCI suppresses miRNA-325-5p expression and enhances CCL2 expression, thus contributing to visceral hypersensitivity in adult rats.
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Affiliation(s)
- Rui Wu
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Ping-An Zhang
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Xuelian Liu
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Yuan Zhou
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Meijie Xu
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China
| | - Xinghong Jiang
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Jun Yan
- The Second Affiliated of Hospital Soochow University, Suzhou, 215004, China
| | - Guang-Yin Xu
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China.
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China.
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