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Gadanec LK, McSweeney KR, Kubatka P, Caprnda M, Gaspar L, Prosecky R, Dragasek J, Kruzliak P, Apostolopoulos V, Zulli A. Angiotensin II constricts mouse iliac arteries: possible mechanism for aortic aneurysms. Mol Cell Biochem 2024; 479:233-242. [PMID: 37027096 DOI: 10.1007/s11010-023-04724-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/27/2023] [Indexed: 04/08/2023]
Abstract
Abdominal aortic aneurysms (AAA) result from maladaptive remodeling of the vascular wall and reduces structural integrity. Angiotensin II (AngII) infusion has become a standard laboratory model for studying AAA initiation and progression. We determined the different vasoactive responses of various mouse arteries to Ang II. Ex vivo isometric tension analysis was conducted on 18-week-old male C57BL/6 mice (n = 4) brachiocephalic arteries (BC), iliac arteries (IL), and abdominal (AA) and thoracic aorta (TA). Arterial rings were mounted between organ hooks, gently stretched and an AngII dose response was performed. Rings were placed in 4% paraformaldehyde for immunohistochemistry analysis to quantify peptide expression of angiotensin type 1 (AT1R) and 2 receptors (AT2R) in the endothelium, media, and adventitia. Results from this study demonstrated vasoconstriction responses in IL were significantly higher at all AngII doses when compared to BC, and TA and AA responses (maximum constriction-IL: 68.64 ± 5.47% vs. BC: 1.96 ± 1.00%; TA: 3.13 ± 0.16% and AA: 2.75 ± 1.77%, p < 0.0001). Expression of AT1R was highest in the endothelium of IL (p < 0.05) and in the media and (p < 0.05) adventitia (p < 0.05) of AA. In contrast, AT2R expression was highest in endothelium (p < 0.05), media (p < 0.01, p < 0.05) and adventitia of TA. These results suggest that mouse arteries display different vasoactive responses to AngII, and the exaggerated response in IL arteries may play a role during AAA development.
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Affiliation(s)
- Laura Kate Gadanec
- Institute of Health and Sport, Victoria University, Werribee Camous, Melbourne, VIC, 3030, Australia.
| | - Kristen Renee McSweeney
- Institute of Health and Sport, Victoria University, Werribee Camous, Melbourne, VIC, 3030, Australia
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Martin Caprnda
- 1st Department of Internal Medicine, Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovakia
| | - Ludovit Gaspar
- Faculty of Health Sciences, University of Ss. Cyril and Methodius in Trnava, Trnava, Slovakia
| | - Robert Prosecky
- 2nd Department of Internal Medicine, Faculty of Medicine, Masaryk University and St. Anne'S University Hospital, Brno, Czech Republic
- International Clinical Research Centre, St. Anne's University Hospital and Masaryk University, Brno, Czech Republic
| | - Jozef Dragasek
- Faculty of Medicine, Pavol Jozef Safarik University and University Hospital, Kosice, Slovakia
| | - Peter Kruzliak
- 2nd Department of Surgery, Faculty of Medicine, Masaryk University and St. Anne's University Hospital, Brno, Czech Republic.
| | - Vasso Apostolopoulos
- Institute of Health and Sport, Victoria University, Werribee Camous, Melbourne, VIC, 3030, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Sunshine Hospital, Melbourne, VIC, 3021, Australia
| | - Anthony Zulli
- Institute of Health and Sport, Victoria University, Werribee Camous, Melbourne, VIC, 3030, Australia.
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Zheng MZ, Lou JS, Fan YP, Fu CY, Mao XJ, Li X, Zhong K, Lu LH, Wang LL, Chen YY, Zheng LR. Identification of autophagy-associated circRNAs in sepsis-induced cardiomyopathy of mice. Sci Rep 2023; 13:11807. [PMID: 37479790 PMCID: PMC10361974 DOI: 10.1038/s41598-023-38998-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023] Open
Abstract
Circular RNAs (circRNAs) play a role in sepsis-related autophagy. However, the role of circRNAs in autophagy after sepsis-induced cardiomyopathy (SICM) is unknown, so we explored the circRNA expression profiles associated with autophagy in an acute sepsis mouse model. At a dose of 10 mg/kg, mice were intraperitoneally administered with lipopolysaccharides. The myocardial tissue was harvested after 6 h for microarray analysis, qRT-PCR, and western blotting. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes and Gene Set Enrichment Analysis were evaluated, and a competing endogenous RNA network was constructed, to evaluate the role of circRNAs related to autophagy in SICM. In total, 1,735 differently expressed circRNAs were identified in the LPS-treated group, including 990 upregulated and 745 downregulated circRNAs. The expression level of the autophagy-specific protein p62 decreased, while the ratio of LC3 II to LC3 I increased. Additionally, 309 mRNAs and 187 circRNAs were correlated with autophagy in myocardial tissue after SICM. Of these, 179 circRNAs were predicted to function as "miRNA sponges". Some distinctive circRNAs and mRNAs found by ceRNA analysis might be involved in autophagy in SICM. These findings provide insights into circRNAs and identified new research targets that may be used to further explore the pathogenesis of SICM.
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Affiliation(s)
- Ming-Zhi Zheng
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Pharmacology, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Jun-Sheng Lou
- Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yun-Peng Fan
- Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chun-Yan Fu
- Department of Basic Medicine Sciences, and Department of Obstetrics of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Xing-Jia Mao
- Department of Basic Medicine Sciences, and Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Xiang Li
- Department of Pharmacology, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Kai Zhong
- Department of Pharmacology, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Lin-Huizi Lu
- Department of Clinical Medicine, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Lin-Lin Wang
- Department of Basic Medicine Sciences, and Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
| | - Ying-Ying Chen
- Department of Basic Medicine Sciences, and Department of Obstetrics of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
| | - Liang-Rong Zheng
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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Hu F, Ren Y, Wang Z, Zhou H, Luo Y, Wang M, Tian F, Zheng J, Du J, Pang G. Bioinformatics analysis of KLF2 as a potential prognostic factor in ccRCC and association with epithelial‑mesenchymal transition. Exp Ther Med 2022; 24:561. [PMID: 35978925 PMCID: PMC9366276 DOI: 10.3892/etm.2022.11498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 06/23/2022] [Indexed: 11/29/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is a primary pathological subtype of RCC and has poor clinical outcome. Krüppel-like factors (KLFs), which are zinc-finger proteins, may be involved in ccRCC development and progression. KLFs belong to the zinc-finger family of DNA-binding transcription factors and regulate transcription of downstream target genes. KLFs are involved in cancer development. The present study aimed to investigate the role of KLFs in ccRCC prognosis. The Cancer Genome Atlas database and multifactorial analysis showed that KLFs were widely expressed in pan-cancers and KLF2 was an independent protective factor for ccRCC prognosis. Patients with low KLF2 expression had a low survival probability and expression of KLF2 was downregulated in patients with ccRCC with high pathological grade (II + III vs. I). In addition, western blot and reverse transcription-quantitative PCR revealed that KLF2 was expressed at low levels in ccRCC cell lines and overexpression of KLF2 inhibited cell migration. In addition, KLF2 expression was negatively correlated with methylation. KLF2 expression was elevated following treatment of ccRCC cells with DNA methyltransferase inhibitor. A prognostic risk index prediction model was constructed based on multiple Cox regression. The receiver operating characteristic curve was 0.780 (area under curve >0.5). Furthermore, Gene Ontology enrichment analysis showed that ‘cell adhesion’ and ‘junction’ were negatively correlated with KLF2 and that high-risk group exhibited significantly activated ‘epithelial-mesenchymal transition’. Western blot analysis showed that overexpression of KLF2 increased expression of E-cadherin, while decreasing levels of N-cadherin and vimentin. The present study highlighted the role of KLFs in ccRCC prognosis prediction and provides a research base for the search of validated prognostic biological markers for ccRCC.
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Affiliation(s)
- Fangfang Hu
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yan Ren
- Department of Human Anatomy, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Zunyun Wang
- The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, P.R. China
| | - Hui Zhou
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yumei Luo
- The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, P.R. China
| | - Minghua Wang
- The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, P.R. China
| | - Faqing Tian
- The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, P.R. China
| | - Jian Zheng
- The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, P.R. China
| | - Juan Du
- Department of Physiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Gang Pang
- Department of Human Anatomy, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, P.R. China
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Wang M, Yin X, Li S, Zhang X, Yi M, He C, Li X, Wang W, Zhang S, Liu H. Large‐Conductance Calcium‐Activated Potassium Channel Opener, NS1619, Protects Against Mesenteric Artery Remodeling Induced by Agonistic Autoantibodies Against the Angiotensin II Type 1 Receptor. J Am Heart Assoc 2022; 11:e024046. [PMID: 35156422 PMCID: PMC9245824 DOI: 10.1161/jaha.121.024046] [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] [Indexed: 11/16/2022]
Abstract
Background Agonistic autoantibodies against the angiotensin II type 1 receptor (AT1‐AAs) extensively exist in patients with hypertensive diseases and have been demonstrated to play crucial roles in the pathophysiological process of vascular remodeling. However, the treatment options are limited. The large‐conductance calcium‐activated potassium (BK) channel is a critical regulator and potential therapeutic target of vascular tone and architecture. We have previously observed that AT1‐AAs have an inhibitory effect on BK channels. However, whether BK channel dysfunction is involved in AT1‐AAs‐induced vascular remodeling and the therapeutic effect of BK channel opener is unclear. Methods and Results In our study, mesenteric arteries from AT1‐AAs‐positive rats exhibited increased wall thickness, narrowing of the arteriolar lumen, and increased collagen accumulation. Patch clamp test results showed that the voltage sensitivity of BK channel declined in mesenteric arteriolar smooth muscle cells from AT1‐AAs‐positive rats. Experiments with freshly isolated mesenteric arteriolar smooth muscle cells showed that AT1‐AAs reduced the opening probability, open levels, open dwell time, and calcium sensitivity of BK channel. Experiments with HEK293T cells transfected with GFP‐ZERO‐BK α‐subunit plasmids suggested a BK channel α‐subunit‐dependent mechanism. BK channel α‐subunit deficient, namely KCNMA1−/− rats showed a phenotype of mesenteric artery remodeling. The administration of NS1619, a specific BK channel opener targeting the α‐subunit, reversed the phenotypic transition and migration induced by AT1‐AAs in cultured mesenteric arteriolar smooth muscle cells. Finally, perfusion of NS1619 significantly relieved the pathological effects induced by AT1‐AAs in vivo. Conclusions In summary, we provide compelling evidence that BK channel α‐subunit dysfunction mediates AT1‐AAs‐induced mesenteric artery remodeling. Preservation of BK channel activity may serve as a potential strategy for the treatment of AT1‐AAs‐induced maladaptive resistance artery remodeling.
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Affiliation(s)
- Meili Wang
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
- Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular DiseaseCapital Medical University Beijing China
| | - Xiaochen Yin
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
| | - Shuanglei Li
- Division of Adult Cardiac Surgery Department of Cardiology The Sixth Medical CenterChinese PLA General Hospital Beijing China
| | - Xi Zhang
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
| | - Ming Yi
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
| | - Chunyu He
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
| | - Xiaoyue Li
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
| | - Wei Wang
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
- Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular DiseaseCapital Medical University Beijing China
| | - Suli Zhang
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
- Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular DiseaseCapital Medical University Beijing China
| | - Huirong Liu
- Department of Physiology and Pathophysiology School of Basic Medical Sciences Capital Medical University Beijing China
- Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular DiseaseCapital Medical University Beijing China
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Pu Z, Lu J, Yang X. Emerging Roles of Circular RNAs in Vascular Smooth Muscle Cell Dysfunction. Front Genet 2022; 12:749296. [PMID: 35126447 PMCID: PMC8807483 DOI: 10.3389/fgene.2021.749296] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022] Open
Abstract
Atherosclerosis is the major pathophysiological basis of cerebrovascular and cardiovascular diseases. Vascular smooth muscle cells (VSMCs) constitute the main structure of vasculature and play important roles in maintaining vascular tone and blood pressure. Many biological processes and cellular signaling events involved in atherosclerogenesis have been shown to converge on deregulating VSMC functions. However, the molecular mechanisms underlying dysfunctional VSMC in atherosclerosis are still poorly defined. Recent evidence revealed that circular RNAs (circRNAs) are closely related to diseases such as degenerative diseases, tumor, congenital diseases, endocrine diseases and cardiovascular diseases. Several studies demonstrated that circRNAs (e.g., circACTA2, Circ-SATB2, circDiaph3, circ_0020397, circTET3, circCCDC66) played critical roles in the regulation of VSMC proliferation, migration, invasion, and contractile-to-synthetic phenotype transformation by sponging microRNAs (e.g., miR-548f-5p, miR-939, miR-148a-5p, miR-138, miR-351-5p, miR-342-3p). This review describes recent progress in the profiling of circRNAs by transcriptome analysis in VSMCs and their molecular functions in regulating VSMC proliferation and migration.
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Affiliation(s)
| | - Jingbo Lu
- *Correspondence: Jingbo Lu, ; Xiaohan Yang,
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Papola F, Biancofiore V, Angeletti C, Grimaldi A, Carucci AC, Cofini V, Necozione S, Rosciano A, Marinangeli F, Cervelli C. Anti-AT1R autoantibodies and prediction of the severity of Covid-19. Hum Immunol 2021; 83:130-133. [PMID: 34772541 PMCID: PMC8577881 DOI: 10.1016/j.humimm.2021.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/28/2022]
Abstract
The stimulation of AT1R (Angiotensin II Receptor Type 1) by Angiotensin II has, in addition to the effects on the renin-angiotensin system, also pro-inflammatory effects through stimulation of ADAM17 and subsequent production of INF-gamma and Interleukin-6. This pro-inflammatory action stimulate the cytokine storm that characterizes the most severe forms of SARS-CoV-2 infection. We studied the effect of AT1Rab on the AT1R on 74 subjects with SARS-CoV-2 infection with respiratory symptoms requiring hospitalization. We divided the patients into 2 groups: 34 with moderate and 40 with severe symptoms that required ICU admission. Hospitalized subjects showed a 50% reduction in the frequency of AT1Rab compared to healthy reference population. Of the ICU patients, 33/40 (82.5%) were AT1Rab negative and 16/33 of them (48.5%) died. All 7 patients positive for AT1Rab survived. These preliminary data seem to indicate a protective role played by AT1R autoantibodies on inflammatory activation in SARS-CoV-2 infection pathology.
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Affiliation(s)
- Franco Papola
- Regional Centre of Immunohaematology and Tissue Typing, S.Salvatore Hospital, L'Aquila, Italy.
| | - Veronica Biancofiore
- Anesthesiology, Intensive Care and Pain Medicine, Emergency Department, S.Salvatore Hospital L'Aquila, Italy
| | - Chiara Angeletti
- Anesthesiology, Intensive Care and Pain Medicine, Emergency Department Civil Hospital G. Mazzini of Teramo, Teramo, Italy
| | | | | | - Vincenza Cofini
- Department of Life, Health and Environmental Science, University of L'Aquila, 67100 L'Aquila, Italy
| | - Stefano Necozione
- Department of Life, Health and Environmental Science, University of L'Aquila, 67100 L'Aquila, Italy
| | - Alessia Rosciano
- Regional Centre of Immunohaematology and Tissue Typing, S.Salvatore Hospital, L'Aquila, Italy
| | - Franco Marinangeli
- Anesthesiology, Intensive Care and Pain Medicine, Emergency Department Civil Hospital G. Mazzini of Teramo, Teramo, Italy
| | - Carla Cervelli
- Regional Centre of Immunohaematology and Tissue Typing, S.Salvatore Hospital, L'Aquila, Italy
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Lin W, Liu H, Tang Y, Wei Y, Wei W, Zhang L, Chen J. The development and controversy of competitive endogenous RNA hypothesis in non-coding genes. Mol Cell Biochem 2020; 476:109-123. [PMID: 32975695 DOI: 10.1007/s11010-020-03889-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 08/14/2020] [Indexed: 02/07/2023]
Abstract
As a momentous post-transcriptional regulator, microRNAs (miRNAs) are attracting more and more attention. The classical miRNAs regulated mechanism shows it binds to the targets' 3'UTR thus play the role in post-transcription. Meanwhile, single miRNA can target multiple genes, so those should compete to bind that miRNA. Vice versa, single gene can sponge mass of miRNAs as well. Thus the competitive endogenous RNAs (ceRNAs) hypothesis was put forward in 2011. The ceRNA hypothesis has made huge achievements, in particular in non-coding genes, which including long non-coding RNAs (lncRNAs), circle RNAs (circRNAs) and pseudogenes, even viral transcripts. It also contributed greatly to epigenetics development. However, an increasing number of controversies have occurred with applause. Based on this situation, this review introduces something in detail about the ceRNAs hypothesis achieved in lncRNAs, circRNAs, pseudogenes and viral transcripts, respectively. Meanwhile, it also covers controversy of the ceRNAs hypothesis.
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Affiliation(s)
- Weimin Lin
- Nanjing Agricultural University, Nanjing, China
| | | | | | - Yuchen Wei
- Nanjing Agricultural University, Nanjing, China
| | - Wei Wei
- Nanjing Agricultural University, Nanjing, China
| | - Lifan Zhang
- Nanjing Agricultural University, Nanjing, China
| | - Jie Chen
- Nanjing Agricultural University, Nanjing, China.
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