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Veloso A, Bleuart A, Conrard L, Orban T, Bruyr J, Cabochette P, Germano RFV, Schevenels G, Bernard A, Zindy E, Demeyer S, Vanhollebeke B, Dequiedt F, Martin M. The cytoskeleton adaptor protein Sorbs1 controls the development of lymphatic and venous vessels in zebrafish. BMC Biol 2024; 22:51. [PMID: 38414014 PMCID: PMC10900589 DOI: 10.1186/s12915-024-01850-z] [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: 08/07/2023] [Accepted: 02/20/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Lymphangiogenesis, the formation of lymphatic vessels, is tightly linked to the development of the venous vasculature, both at the cellular and molecular levels. Here, we identify a novel role for Sorbs1, the founding member of the SoHo family of cytoskeleton adaptor proteins, in vascular and lymphatic development in the zebrafish. RESULTS We show that Sorbs1 is required for secondary sprouting and emergence of several vascular structures specifically derived from the axial vein. Most notably, formation of the precursor parachordal lymphatic structures is affected in sorbs1 mutant embryos, severely impacting the establishment of the trunk lymphatic vessel network. Interestingly, we show that Sorbs1 interacts with the BMP pathway and could function outside of Vegfc signaling. Mechanistically, Sorbs1 controls FAK/Src signaling and subsequently impacts on the cytoskeleton processes regulated by Rac1 and RhoA GTPases. Inactivation of Sorbs1 altered cell-extracellular matrix (ECM) contacts rearrangement and cytoskeleton dynamics, leading to specific defects in endothelial cell migratory and adhesive properties. CONCLUSIONS Overall, using in vitro and in vivo assays, we identify Sorbs1 as an important regulator of venous and lymphatic angiogenesis independently of the Vegfc signaling axis. These results provide a better understanding of the complexity found within context-specific vascular and lymphatic development.
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Affiliation(s)
- Alexandra Veloso
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège (ULiège), Liège, Belgium
- Laboratory for the Molecular Biology of Leukemia, Center for Human Genetics, KU Leuven, Leuven, Belgium
| | - Anouk Bleuart
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège (ULiège), Liège, Belgium
| | - Louise Conrard
- Center for Microscopy and Molecular Imaging, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium
| | - Tanguy Orban
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège (ULiège), Liège, Belgium
| | - Jonathan Bruyr
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège (ULiège), Liège, Belgium
| | - Pauline Cabochette
- Department of Molecular Biology, Laboratory of Neurovascular Signaling, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium
- Present Address: Laboratory of Developmental Genetics, ULB Neuroscience Institute, Université Libre de Bruxelles, B-6041, Gosselies, Belgium
| | - Raoul F V Germano
- Department of Molecular Biology, Laboratory of Neurovascular Signaling, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium
| | - Giel Schevenels
- Department of Molecular Biology, Laboratory of Neurovascular Signaling, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium
| | - Alice Bernard
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium
- Laboratory for Molecular Biology and Genetic Engineering, GIGA-R, University of Liège (ULiège), Liège, Belgium
| | - Egor Zindy
- Center for Microscopy and Molecular Imaging, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium
| | - Sofie Demeyer
- Laboratory for the Molecular Biology of Leukemia, Center for Human Genetics, KU Leuven, Leuven, Belgium
| | - Benoit Vanhollebeke
- Department of Molecular Biology, Laboratory of Neurovascular Signaling, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium
| | - Franck Dequiedt
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège (ULiège), Liège, Belgium
| | - Maud Martin
- Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège (ULiège), Liège, Belgium.
- Laboratory of Gene Expression and Cancer, GIGA-Molecular Biology of Diseases, University of Liège (ULiège), Liège, Belgium.
- Center for Microscopy and Molecular Imaging, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium.
- Department of Molecular Biology, Laboratory of Neurovascular Signaling, ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), B-6041, Gosselies, Belgium.
- WEL Research Institute (WELBIO Department), Avenue Pasteur, 6, 1300, Wavre, Belgium.
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Li J, Wang C, Xiao W, Chen Y, Tu J, Wan F, Deng K, Li H. TRAF Family Member 4 Promotes Cardiac Hypertrophy Through the Activation of the AKT Pathway. J Am Heart Assoc 2023; 12:e028185. [PMID: 37642020 PMCID: PMC10547335 DOI: 10.1161/jaha.122.028185] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 05/03/2023] [Indexed: 08/31/2023]
Abstract
Background Pathological cardiac hypertrophy is a major cause of heart failure morbidity. The complex mechanism of intermolecular interactions underlying the pathogenesis of cardiac hypertrophy has led to a lack of development and application of therapeutic methods. Methods and Results Our study provides the first evidence that TRAF4, a member of the tumor necrosis factor receptor-associated factor (TRAF) family, acts as a promoter of cardiac hypertrophy. Here, Western blotting assays demonstrated that TRAF4 is upregulated in cardiac hypertrophy. Additionally, TRAF4 deletion inhibits the development of cardiac hypertrophy in a mouse model after transverse aortic constriction surgery, whereas its overexpression promotes phenylephrine stimulation-induced cardiomyocyte hypertrophy in primary neonatal rat cardiomyocytes. Mechanistically, RNA-seq analysis revealed that TRAF4 promoted the activation of the protein kinase B pathway during cardiac hypertrophy. Moreover, we found that inhibition of protein kinase B phosphorylation rescued the aggravated cardiomyocyte hypertrophic phenotypes caused by TRAF4 overexpression in phenylephrine-treated neonatal rat cardiomyocytes, suggesting that TRAF4 may regulate cardiac hypertrophy in a protein kinase B-dependent manner. Conclusions Our results revealed the regulatory function of TRAF4 in cardiac hypertrophy, which may provide new insights into developing therapeutic and preventive targets for this disease.
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Affiliation(s)
- Jian Li
- Department of Thoracic and Cardiovascular SurgeryHuanggang Central Hospital of Yangtze UniversityHuanggangChina
| | - Chang‐Quan Wang
- Department of NeurologyHuanggang Central Hospital of Yangtze UniversityHuanggangChina
| | - Wen‐Chang Xiao
- Department of Cardiovascular SurgeryHuanggang Central Hospital of Yangtze UniversityHuanggangChina
- Huanggang Institute of Translational MedicineHuanggangChina
| | - Yun Chen
- Clinical Trial CentersHuanggang Central Hospital of Yangtze UniversityHuanggangChina
| | - Jun Tu
- Huanggang Institute of Translational MedicineHuanggangChina
| | - Feng Wan
- Department of NeurologyHuanggang Central Hospital of Yangtze UniversityHuanggangChina
- Huanggang Institute of Translational MedicineHuanggangChina
| | - Ke‐Qiong Deng
- Huanggang Institute of Translational MedicineHuanggangChina
- Department of CardiologyZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Huo‐Ping Li
- Department of CardiologyHuanggang Central Hospital of Yangtze UniversityHuanggangChina
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Advances in the previous two decades in our understanding of the post-translational modifications, functions, and drug perspectives of ArgBP2 and its family members. Biomed Pharmacother 2022; 155:113853. [DOI: 10.1016/j.biopha.2022.113853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/28/2022] [Accepted: 10/06/2022] [Indexed: 11/20/2022] Open
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MIP-1α Level and Its Correlation with the Risk of Left Atrial Remodeling in Patients with Atrial Fibrillation. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:1756268. [PMID: 35845739 PMCID: PMC9249486 DOI: 10.1155/2022/1756268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 05/31/2022] [Indexed: 11/17/2022]
Abstract
The aim of this study is to investigate the expression level of macrophage inflammatory protein-1α (MIP-1α) in atrial fibrillation patients and its correlation with the risk of left atrial remodeling. A total of 64 atrial fibrillation patients admitted to our hospital from April 2020 to December 2021 were prospectively selected as the case group and 61 healthy subjects who received physical examination during the same period were selected as the control group. Serum MIP-1α level was determined by a double-antibody sandwich enzyme-linked immunosorbent assay. Serum MIP-1α expression levels were compared between the case and the control groups. The case group was divided into high-level and low-level groups according to the serum MIP-1α median. Simultaneously, the sociodemographic data, clinical data, and left atrial remodeling indexes of the patients were collected in the case group. The Pearson correlation analysis was applied to analyze the correlation between the serum MIP-1α level and the risk of left atrial remodeling in patients with atrial fibrillation. The serum MIP-1α level was significantly higher in the case group than that in the control group (P < 0.05), high-level group (≥2.14 pg/mL, 32 cases), and low-level group (<2.14 pg/mL, 32 cases). There were significant differences in the anteroposterior diameter, upper and lower diameter, left and right diameter of the left atrium, left atrial volume, volume index, left atrial global ejection fraction, and sphericity between the low-level and high-level groups (P < 0.05). The Pearson correlation analysis showed that serum MIP-1α level was positively correlated with the left atrial anteroposterior diameter (r = 0.745), left atrial left and right diameter (r = 0.759), left atrial upper and lower diameter (r = 0.810), left atrial volume (r = 0.837), left atrial volume index (r = 0.813), and left atrial sphericity (r = 0.785) but negatively correlated with the left atrial global ejection fraction (r = -0.731) (P < 0.05). The expression level of serum MIP-1α is high in atrial fibrillation patients and is associated with the risk of left atrial remodeling.
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Lin S, Ke C, Liu L, Gao Y, Xu L, Han B, Zhao Y, Zhang S, Sun D. Genome-wide association studies for immunoglobulin concentrations in colostrum and serum in Chinese Holstein. BMC Genomics 2022; 23:41. [PMID: 35012443 PMCID: PMC8744259 DOI: 10.1186/s12864-021-08250-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/13/2021] [Indexed: 11/24/2022] Open
Abstract
Background The early death and health problems of calves caused substantial economic losses in the dairy industry. As the immune system of neonates has not been fully developed, the absorption of maternal immunoglobulin (Ig) from colostrum is essential in protecting newborn calves against common disease organisms in their early life. The overwhelming majority of Ig in bovine whey is transported from the serum. Therefore, Ig concentration in the colostrum and serum of dairy cows are critical traits when estimating the potential disease resistance of its offspring. Results Colostrum, blood, and hair follicle samples were collected from 588 Chinese Holstein cows within 24 h after calving. The concentration of total IgG, IgG1, IgG2, IgA and IgM in both colostrum and serum were detected via ELISA methods. With GCTA software, genome-wide association studies (GWASs) were performed with 91,620 SNPs genotyped by GeneSeek 150 K (140,668 SNPs) chips. As a result, 1, 5, 1 and 29 significant SNPs were detected associated with the concentrations of colostrum IgG1, IgG2, IgA IgM, and serum IgG2 at the genome-wide level (P < 3.08E–6); 11, 2, 13, 2, 12, 8, 2, 27, 1 and 4 SNPs were found significantly associated with total IgG, IgG1, IgG2, IgA and IgM in colostrum and serum at the suggestive level (P < 6.15E–5). Such SNPs located in or proximate to (±1 Mb) 423 genes, which were functionally implicated in biological processes and pathways, such as immune response, B cell activation, inflammatory response and NF-kappaB signaling pathways. By combining the biological functions and the known QTL data for immune traits in bovine, 14 promising candidate functional genes were identified for immunoglobulin concentrations in colostrum and serum in dairy cattle, they were FGFR4, FGFR2, NCF1, IKBKG, SORBS3, IGHV1S18, KIT, PTGS2, BAX, GRB2, TAOK1, ICAM1, TGFB1 and RAC3. Conclusions In this study, we identified 14 candidate genes related to concentrations of immunoglobulins in colostrum and serum in dairy cattle by performing GWASs. Our findings provide a groundwork for unraveling the key genes and causal mutations affecting immunoglobulin concentrations in colostrum and important information for genetic improvement of such traits in dairy cattle. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-08250-5.
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Affiliation(s)
- Shan Lin
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, 100193, China
| | - Cuncun Ke
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Lin Liu
- Beijing Dairy Cattle Center, Beijing, 100192, China
| | - Yahui Gao
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, 100193, China
| | - Lingna Xu
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, 100193, China
| | - Bo Han
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, 100193, China
| | - Yaofeng Zhao
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Shengli Zhang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, 100193, China
| | - Dongxiao Sun
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, 100193, China.
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Vdovenko D, Bachmann M, Wijnen WJ, Hottiger MO, Eriksson U, Valaperti A. The adaptor protein c-Cbl-associated protein (CAP) limits pro-inflammatory cytokine expression by inhibiting the NF-κB pathway. Int Immunopharmacol 2020; 87:106822. [PMID: 32738595 DOI: 10.1016/j.intimp.2020.106822] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/15/2020] [Accepted: 07/17/2020] [Indexed: 01/07/2023]
Abstract
C-Cbl-associated protein (CAP), also known as Sorbin and SH3 domain-containing protein 1 (Sorbs1) or ponsin, an adaptor protein of the insulin-signalling pathway, mediates anti-viral and anti-cytotoxic protection in acute viral heart disease. In the present study we describe a novel protective immuno-modulatory function of CAP in inflammation. Among the three members of the Sorbs family of adapter molecules, which include CAP (Sorbs1), ArgBP2 (Sorbs2), and Vinexin (Sorbs3), CAP consistently down-regulated the expression of pro-inflammatory cytokines in mouse fibroblasts, cardiomyocytes, and myeloid-derived leukocytes, after Toll-like receptor (TLR) stimulation. Upon the same TLR stimulation, ArgBP2 partially down-regulated pro-inflammatory cytokine production in mouse fibroblasts and cardiomyocytes, while Vinexin rather promoted their production. Mechanistically, CAP limited pro-inflammatory cytokine expression by suppressing the phosphorylation of Inhibitor of kappa B (IκB) kinase (Iκκ)-α and Iκκ-β and their downstream NF-κB-dependent signalling pathway. Molecular affinity between CAP and Iκκ-α/ Iκκ-β was necessary to block the NF-κB pathway. The CAP-dependent inhibitory mechanism - in vivo exclusively IL-6 inhibition - was confirmed after collecting blood from mice with systemic inflammation induced by lipopolysaccharide (LPS) and in the heart tissue collected from mice infected with the cardiotropic Coxsackievirus B3 (CVB3). Taken together, CAP down-regulates pro-inflammatory cytokines by interfering with the normal function of the NF-κB pathway. The promotion of CAP production could support the development of new strategies aiming to limit excessive and detrimental activation of the immune system.
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Affiliation(s)
- Daria Vdovenko
- Cardioimmunology, Center for Molecular Cardiology, University of Zurich, Switzerland; GZO - Zurich Regional Health Center, Wetzikon, Switzerland
| | - Marta Bachmann
- Cardioimmunology, Center for Molecular Cardiology, University of Zurich, Switzerland; GZO - Zurich Regional Health Center, Wetzikon, Switzerland
| | - Winandus J Wijnen
- Cardioimmunology, Center for Molecular Cardiology, University of Zurich, Switzerland; GZO - Zurich Regional Health Center, Wetzikon, Switzerland
| | - Michael O Hottiger
- Department of Molecular Mechanisms of Disease (DMMD), University of Zurich, Switzerland
| | - Urs Eriksson
- Cardioimmunology, Center for Molecular Cardiology, University of Zurich, Switzerland; GZO - Zurich Regional Health Center, Wetzikon, Switzerland
| | - Alan Valaperti
- Department of Molecular Mechanisms of Disease (DMMD), University of Zurich, Switzerland; Department of Clinical Immunology, University Hospital Zurich, Switzerland.
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Myotubularin-related protein 14 suppresses cardiac hypertrophy by inhibiting Akt. Cell Death Dis 2020; 11:140. [PMID: 32080168 PMCID: PMC7033093 DOI: 10.1038/s41419-020-2330-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/01/2020] [Accepted: 02/03/2020] [Indexed: 11/12/2022]
Abstract
Cardiac hypertrophy (CH) is an independent risk factor for many cardiovascular diseases, and is one of the primary causes of morbidity and mortality in elderly people. Pathological CH involves excessive protein synthesis, increased cardiomyocyte size, and ultimately the development of heart failure. Myotubularin-related protein 14 (MTMR14) is a member of the myotubularin (MTM)-related protein family, which is involved in apoptosis, aging, inflammation, and autophagy. However, its exact function in CH is still unclear. Herein, we investigated the roles of MTMR14 in CH. We show that MTMR14 expression was increased in hypertrophic mouse hearts. Mice deficient in heart MTMR14 exhibited an aggravated aortic-banding (AB)-induced CH phenotype. In contrast, MTMR14 overexpression prevented pressure overload-induced hypertrophy. At the molecular level, prevention of CH in the absence of MTMR14 involved elevations in Akt pathway components, which are key elements that regulate apoptosis and cell proliferation. These results demonstrate that MTMR14 is a new molecular target for the treatment of CH.
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Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common liver disease and a major cause of related complications such as cirrhosis and hepatocellular carcinoma (HCC). NAFLD progresses through the stages of simple steatosis, nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and HCC. However, NAFLD usually cannot be diagnosed in a timely manner, which is largely attributed to the asymptomatic features of NAFLD patients and the lack of an effective and accurate noninvasive screening approach. Although liver biopsy has been recognized as a gold standard for diagnosing NAFLD, this approach is not suitable for screening and monitoring NAFLD because of its high cost and invasiveness. Several noninvasive screening and diagnostic systemic assessments have been developed in recent years for NAFLD evaluation. Here we summarize the current status and methods for NAFLD diagnosis, including both noninvasive (imaging, biomarkers) and invasive (liver biopsy) assessments. We further discuss the advantages and disadvantages of these developed diagnostic approaches for NAFLD.
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Affiliation(s)
- Jia-Zhen Zhang
- *Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Jing-Jing Cai
- †Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Yao Yu
- ‡Institute of Model Animals of Wuhan University, Wuhan, P.R. China
| | - Zhi-Gang She
- *Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
- ‡Institute of Model Animals of Wuhan University, Wuhan, P.R. China
- §Wuhan University School of Basic Medical Sciences, Wuhan, P.R. China
- ¶Medical Research Institute, School of Medicine, Wuhan University, Wuhan, P.R. China
| | - Hongliang Li
- *Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
- ‡Institute of Model Animals of Wuhan University, Wuhan, P.R. China
- §Wuhan University School of Basic Medical Sciences, Wuhan, P.R. China
- ¶Medical Research Institute, School of Medicine, Wuhan University, Wuhan, P.R. China
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Liang ES, Bai WW, Wang H, Zhang JN, Zhang F, Ma Y, Jiang F, Yin M, Zhang MX, Chen XM, Qin WD. PARP-1 (Poly[ADP-Ribose] Polymerase 1) Inhibition Protects From Ang II (Angiotensin II)-Induced Abdominal Aortic Aneurysm in Mice. Hypertension 2019; 72:1189-1199. [PMID: 30354818 DOI: 10.1161/hypertensionaha.118.11184] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a common vascular degenerative disease. PARP-1 (poly[ADP-ribose] polymerase 1) is a nuclear enzyme, which plays a critical role in vascular diseases. We hypothesized that PARP-1 inhibition might have protective effects on AAA. In vivo, Ang II (angiotensin II) was continuously infused by a micropump for 28 days to induce AAA in mice. In vitro, aortic endothelial cells and smooth muscle cells were stimulated by Ang II for 24 hours. Ang II infusion increased PARP-1 expression and activity and successfully induced AAA formation partly with a hemorrhage in ApoE-/- mice. Genetic deletion of PARP-1 markedly reduced the AAA incidence, abdominal aortic diameter, macrophage infiltration, ICAM-1 (intercellular adhesion molecule 1) and VCAM-1 (vascular adhesion molecule 1) expression, and MMP (matrix metalloproteinase) expression, as well as MMP activity; but increased smooth muscle cells content and collagens expression in AAA. PARP-1 inhibition by PJ-34 also exerted a protective effect on AAA in mice. In aortic endothelial cells, Ang II-induced oxidative stress and DNA damage, resulting in increased PARP-1 expression and activity. Compared with the control, Ang II increased TNF-α (tumor necrosis factor α) and IL-6 (interleukin-6) secretions, ICAM-1 expression and THP-1 (human acute monocytic leukemia cell line) cells adhesion, while PARP-1 inhibition by siRNA reduced the inflammatory response probably through inhibition of the phosphorylation of ERK (extracellular signal-regulated kinase), NF-κB (nuclear factor-κB), and Akt signaling pathways. In smooth muscle cells, Ang II promoted cell migration, proliferation, and apoptosis, reduced collagens expression, but increased MMPs expression, while PARP-1 deletion alleviated these effects partly by reducing NF-κB-targeted MMP-9 expression. PARP-1 inhibition might be a feasible strategy for the treatment of AAA.
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Affiliation(s)
- Er-Shun Liang
- From the The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Public Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China (E.-s.L., F.J., M.-x.Z.)
| | - Wen-Wu Bai
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, China (W.-w.B.)
| | - Hao Wang
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China (H.W., J.-n.Z., F.Z., Y.M., X.-m.C., W.-d.Q.)
| | - Jian-Ning Zhang
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China (H.W., J.-n.Z., F.Z., Y.M., X.-m.C., W.-d.Q.)
| | - Fan Zhang
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China (H.W., J.-n.Z., F.Z., Y.M., X.-m.C., W.-d.Q.)
| | - Yang Ma
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China (H.W., J.-n.Z., F.Z., Y.M., X.-m.C., W.-d.Q.)
| | - Fan Jiang
- From the The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Public Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China (E.-s.L., F.J., M.-x.Z.).,The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China (F.J.).,Department of Physiology and Pathophysiology, School of Basic Medicine, Shandong University, Jinan, China (F.J.)
| | - Mei Yin
- Department of Geriatrics, Qilu Hospital of Shandong University, Jinan, China (M.Y.)
| | - Ming-Xiang Zhang
- From the The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Public Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China (E.-s.L., F.J., M.-x.Z.)
| | - Xiao-Mei Chen
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China (H.W., J.-n.Z., F.Z., Y.M., X.-m.C., W.-d.Q.)
| | - Wei-Dong Qin
- Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China (H.W., J.-n.Z., F.Z., Y.M., X.-m.C., W.-d.Q.)
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Xu M, Liu PP, Li H. Innate Immune Signaling and Its Role in Metabolic and Cardiovascular Diseases. Physiol Rev 2019; 99:893-948. [PMID: 30565509 DOI: 10.1152/physrev.00065.2017] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The innate immune system is an evolutionarily conserved system that senses and defends against infection and irritation. Innate immune signaling is a complex cascade that quickly recognizes infectious threats through multiple germline-encoded cell surface or cytoplasmic receptors and transmits signals for the deployment of proper countermeasures through adaptors, kinases, and transcription factors, resulting in the production of cytokines. As the first response of the innate immune system to pathogenic signals, inflammatory responses must be rapid and specific to establish a physical barrier against the spread of infection and must subsequently be terminated once the pathogens have been cleared. Long-lasting and low-grade chronic inflammation is a distinguishing feature of type 2 diabetes and cardiovascular diseases, which are currently major public health problems. Cardiometabolic stress-induced inflammatory responses activate innate immune signaling, which directly contributes to the development of cardiometabolic diseases. Additionally, although the innate immune elements are highly conserved in higher-order jawed vertebrates, lower-grade jawless vertebrates lack several transcription factors and inflammatory cytokine genes downstream of the Toll-like receptors (TLRs) and retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs) pathways, suggesting that innate immune signaling components may additionally function in an immune-independent way. Notably, recent studies from our group and others have revealed that innate immune signaling can function as a vital regulator of cardiometabolic homeostasis independent of its immune function. Therefore, further investigation of innate immune signaling in cardiometabolic systems may facilitate the discovery of new strategies to manage the initiation and progression of cardiometabolic disorders, leading to better treatments for these diseases. In this review, we summarize the current progress in innate immune signaling studies and the regulatory function of innate immunity in cardiometabolic diseases. Notably, we highlight the immune-independent effects of innate immune signaling components on the development of cardiometabolic disorders.
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Affiliation(s)
- Meng Xu
- Department of Cardiology, Renmin Hospital of Wuhan University , Wuhan , China ; Medical Research Center, Zhongnan Hospital of Wuhan University , Wuhan , China ; Animal Experiment Center, Wuhan University , Wuhan , China ; Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario , Canada
| | - Peter P Liu
- Department of Cardiology, Renmin Hospital of Wuhan University , Wuhan , China ; Medical Research Center, Zhongnan Hospital of Wuhan University , Wuhan , China ; Animal Experiment Center, Wuhan University , Wuhan , China ; Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario , Canada
| | - Hongliang Li
- Department of Cardiology, Renmin Hospital of Wuhan University , Wuhan , China ; Medical Research Center, Zhongnan Hospital of Wuhan University , Wuhan , China ; Animal Experiment Center, Wuhan University , Wuhan , China ; Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario , Canada
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Functions of Rhotekin, an Effector of Rho GTPase, and Its Binding Partners in Mammals. Int J Mol Sci 2018; 19:ijms19072121. [PMID: 30037057 PMCID: PMC6073136 DOI: 10.3390/ijms19072121] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 07/13/2018] [Accepted: 07/17/2018] [Indexed: 12/26/2022] Open
Abstract
Rhotekin is an effector protein for small GTPase Rho. This protein consists of a Rho binding domain (RBD), a pleckstrin homology (PH) domain, two proline-rich regions and a C-terminal PDZ (PSD-95, Discs-large, and ZO-1)-binding motif. We, and other groups, have identified various binding partners for Rhotekin and carried out biochemical and cell biological characterization. However, the physiological functions of Rhotekin, per se, are as of yet largely unknown. In this review, we summarize known features of Rhotekin and its binding partners in neuronal tissues and cancer cells.
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LILRB4 deficiency aggravates the development of atherosclerosis and plaque instability by increasing the macrophage inflammatory response via NF-κB signaling. Clin Sci (Lond) 2017; 131:2275-2288. [PMID: 28743735 DOI: 10.1042/cs20170198] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/25/2017] [Accepted: 07/25/2017] [Indexed: 12/22/2022]
Abstract
Atherosclerosis is a chronic inflammatory disease. LILRB4 is associated with the pathological processes of various inflammatory diseases. However, the potential function and underlying mechanisms of LILRB4 in atherogenesis remain to be investigated. In this study, LILRB4 expression was examined in both human and mouse atherosclerotic plaques. The effects and possible mechanisms of LILRB4 in atherogenesis and plaque instability were evaluated in LILRB4-/-ApoE-/- and ApoE-/- mice fed a high-fat diet. We found that LILRB4 was located primarily in macrophages, and its expression was up-regulated in atherosclerotic lesions from human coronary arteries and mouse aortic roots. LILRB4 deficiency significantly accelerated the development of atherosclerotic lesions and increased the instability of plaques, as evidenced by the increased infiltration of lipids, decreased amount of collagen components and smooth muscle cells. Moreover, LILRB4 deficiency in bone marrow-derived cells promoted the development of atherosclerosis. In vivo and in vitro analyses revealed that the pro-inflammatory effects of LILRB4 deficiency were mediated by the increased activation of NF-κB signaling due to decreased Shp1 phosphorylation. In conclusion, the present study indicates that LILRB4 deficiency promotes atherogenesis, at least partly, through reduced Shp1 phosphorylation, which subsequently enhances the NF-κB-mediated inflammatory response. Thus, targeting the "LILRB4-Shp1" axis may be a novel therapeutic approach for atherosclerosis.
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