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Wang ZY, Cheng J, Wang Y, Yuan HT, Bi SJ, Wang SX, Hou YM, Zhang X, Xu BH, Wang ZY, Zhang Y, Jiang WJ, Chen YG, Zhang MX. Macrophage ILF3 promotes abdominal aortic aneurysm by inducing inflammatory imbalance in male mice. Nat Commun 2024; 15:7249. [PMID: 39179537 PMCID: PMC11344041 DOI: 10.1038/s41467-024-51030-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 07/24/2024] [Indexed: 08/26/2024] Open
Abstract
Imbalance of proinflammatory and anti-inflammatory responses plays a crucial role in the progression of abdominal aortic aneurysms. ILF3, a known modulator of the innate immune response, is involved in cardiovascular diseases. This study aims to investigate the role of ILF3 in abdominal aortic aneurysm formation. Here, we use multi-omics analyzes, transgenic male mice, and multiplex immunohistochemistry to unravel the underlying involvement of ILF3 in abdominal aortic aneurysms. The results show that macrophage ILF3 deficiency attenuates abdominal aortic aneurysm progression, while elevated macrophage ILF3 exacerbates abdominal aortic aneurysm lesions. Mechanistically, we reveal that macrophagic ILF3 increases NF-κB activity by hastening the decay of p105 mRNA, leading to amplified inflammation in macrophages. Meanwhile, ILF3 represses the anti-inflammatory action by inhibiting the Keap1-Nrf2 signaling pathway through facilitating the ILF3/eIF4A1 complex-mediated enhancement of Keap1 translational efficiency. Moreover, Bardoxolone Methyl treatment alleviates the severity of abdominal aortic aneurysm lesions in the context of elevated ILF3 expression. Together, our findings underscore the significance of macrophage ILF3 in abdominal aortic aneurysm development and suggest its potential as a promising therapeutic target for abdominal aortic aneurysms.
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Affiliation(s)
- Zhao-Yang Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Jie Cheng
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Ying Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Hai-Tao Yuan
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Shao-Jie Bi
- Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shuang-Xi Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Ya-Min Hou
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xu Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Bo-Han Xu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Ze-Ying Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Yun Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
| | - Wen-Jian Jiang
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
| | - Yu-Guo Chen
- Department of Emergency and Chest Pain Center, Qilu Hospital, Shandong University, Jinan, China.
| | - Ming-Xiang Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
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Ostovar R, Laux M, Kuehnel RU, Schroeter F, Braun C, Erb M, Albes JM. Immunosuppressive Agents and Thoracic Aortic Aneurysm: Real Correlation or Mere Coincidence? Thorac Cardiovasc Surg 2022; 70:637-644. [PMID: 33461219 DOI: 10.1055/s-0040-1721675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Atherosclerosis, hypertension, age, and fibrillopathies are well-known risk factors for the development of aortic aneurysm. We discovered that a significant proportion of our patients were previously on chemotherapy treatment or long-term treatment with cytostatic agents or immunosuppressive drugs. Thus, we examined this phenomenon. METHODS A total of 224 patients with thoracic aorta aneurysm were retrospectively analyzed after aortic surgery from 2006 to 2016. Seventy-three patients received aortic wrapping and 151 patients underwent aortic replacement of which 89 had a valve-carrying conduit and 62 a supracoronary ascending replacement. Aortic morphology was assessed by means of compute tomography scan before and after surgery. Demographic data, risk profile, and postoperative complications were collected. Short- and long-term survival analysis was performed. Statistical analysis was performed with SPSS 19.0. RESULTS Eighty-eight of 224 patients undergoing aortic surgery because of aortic aneurysm had previously or currently been treated with immunosuppressive agents. Dilatation of the ascending aorta was more pronounced in patients without such therapy. Demographic profile, intraoperative, as well as short- and long-term postoperative results did not differ significantly between both groups. CONCLUSION The potential effect of immunosuppressant and cytostatic therapies on the development of an aortic aneurysm needs further study. Because of the astoundingly high proportion of these patients being found in an unselected aortic aneurysm cohort with immunosuppressive therapy in the past should be monitored for potential development of aortic aneurysm. If it occurs and requires treatment these patients can fortunately be operated upon with the same short- and long-term outcome than patients without such previous therapy.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Magdalena Laux
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Filip Schroeter
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Christian Braun
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Johannes M Albes
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
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Potential of Disease-Modifying Anti-Rheumatic Drugs to Limit Abdominal Aortic Aneurysm Growth. Biomedicines 2022; 10:biomedicines10102409. [PMID: 36289670 PMCID: PMC9598733 DOI: 10.3390/biomedicines10102409] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/28/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022] Open
Abstract
Inflammation is strongly implicated in the pathogenesis of abdominal aortic aneurysms (AAA). This review examined the potential role of biologic disease-modifying anti-rheumatic drugs (bDMARDs) as repurposed drugs for treating AAA. Published evidence from clinical and preclinical studies was examined. Findings from animal models suggested that a deficiency or inhibition of tumour necrosis factor-α (TNF-α) (standard mean difference (SMD): −8.37, 95% confidence interval (CI): −9.92, −6.82), interleukin (IL)-6 (SMD: −1.44, 95% CI: −2.85, −0.04) and IL-17 (SMD: −3.36, 95% CI: −4.21, −2.50) led to a significantly smaller AAA diameter compared to controls. Human AAA tissue samples had significantly increased TNF-α (SMD: 1.68, 95% CI: 0.87, 2.49), IL-1β (SMD: 1.93, 95% CI: 1.08, 2.79), IL-6 (SMD: 2.56, 95% CI: 1.79, 3.33) and IL-17 (SMD: 6.28, 95% CI: 3.57, 8.99) levels compared to non-AAA controls. In human serum, TNF-α (SMD: 1.11, 95% CI: 0.25, 1.97) and IL-6 (SMD: 1.42, 95% CI: 0.91, 1.92) levels were significantly elevated compared to non-AAA controls. These findings implicate TNF-α, IL-17 and IL-6 in AAA pathogenesis. Randomised controlled trials testing the value of bDMARDs in limiting AAA growth may be warranted.
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Siennicka A, Adamowicz M, Grzesch N, Kłysz M, Woźniak J, Cnotliwy M, Galant K, Jastrzębska M. Association of Aneurysm Tissue Neutrophil Mediator Levels with Intraluminal Thrombus Thickness in Patients with Abdominal Aortic Aneurysm. Biomolecules 2022; 12:biom12020254. [PMID: 35204755 PMCID: PMC8961541 DOI: 10.3390/biom12020254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/26/2022] [Accepted: 02/02/2022] [Indexed: 12/04/2022] Open
Abstract
An intraluminal thrombus (ILT), which accumulates large numbers of neutrophils, plays a key role in abdominal aortic aneurysm (AAA) pathogenesis. This study aimed to compare levels of selected neutrophil inflammatory mediators in thick and thin ILT, plus adjacent AAA walls, to determine whether levels depend on ILT thickness. Neutrophil mediator levels were analysed by enzyme-linked immunosorbent assays in thick and thin segments of ILT, plus adjacent aneurysm wall sections, taken from one aneurysm sac each from 36 AAA patients. In aneurysmal walls covered by thick ILT, neutrophil elastase and TNF-a levels were significantly higher, as were concentrations of IL-6, in thick ILT compared to thin layers. Positive correlations of NGAL, MPO, and neutrophil elastase were observed between thick ILT and the adjacent wall and thin ILT and the adjacent wall, suggesting that these mediators probably infiltrate thick AAA compartments as well as thin. These observations might support the idea that neutrophil mediators and inflammatory cytokines differentially accumulate in AAA tissues according to ILT thickness. The increased levels of neutrophil mediators within thicker AAA segments might suggest the existence of an intensified proinflammatory state that in turn presumably might preferentially weaken the AAA wall at that region.
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Affiliation(s)
- Aldona Siennicka
- Department of Laboratory Diagnostics, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.S.); (M.A.); (N.G.); (M.J.)
| | - Monika Adamowicz
- Department of Laboratory Diagnostics, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.S.); (M.A.); (N.G.); (M.J.)
| | - Natalie Grzesch
- Department of Laboratory Diagnostics, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.S.); (M.A.); (N.G.); (M.J.)
| | - Magdalena Kłysz
- Department of Laboratory Diagnostics, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.S.); (M.A.); (N.G.); (M.J.)
- Correspondence: ; Tel.: +48-914661505
| | - Jarosław Woźniak
- Institute of Mathematics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland;
| | - Miłosław Cnotliwy
- Department of Vascular Surgery and Angiology, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Katarzyna Galant
- Department of Laboratory Medicine, Chair of Microbiology, Immunological Diagnostics and Laboratory Medicine, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Maria Jastrzębska
- Department of Laboratory Diagnostics, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (A.S.); (M.A.); (N.G.); (M.J.)
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Salhi L, Rijkschroeff P, Van Hede D, Laine ML, Teughels W, Sakalihasan N, Lambert F. Blood Biomarkers and Serologic Immunological Profiles Related to Periodontitis in Abdominal Aortic Aneurysm Patients. Front Cell Infect Microbiol 2022; 11:766462. [PMID: 35096635 PMCID: PMC8798408 DOI: 10.3389/fcimb.2021.766462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Periodontitis is a chronic inflammatory gum disease associated with systemic diseases such as cardiovascular diseases. AIM To investigate the association of systemic blood biomarkers, C-reactive protein (CRP), levels of lipopolysaccharide (LPS), and IgG levels against periodontal pathogens Aggregatibacter actinomycetemcomitans (Aa) and Porphyromonas gingivalis (Pg) with the stability, based on the aortic diameter, the growth rate and the eligibility for surgical intervention, of patients with abdominal aortic aneurysm (AAA). METHODS Patients with stable AAA (n = 30) and unstable AAA (n = 31) were recruited. The anti-A. actinomycetemcomitans and anti-P. gingivalis IgG levels were analyzed by ELISA, the LPS analysis was performed by using the limulus amebocyte lysate (LAL) test, and plasma levels of CRP were determined using an immune turbidimetric method. The association between these blood systemic biomarkers, AAA features, periodontal clinical parameters and oral microbial profiles were explored. Regression models were used to test the relationship between variables. RESULTS The presence of antibodies against Pg and Aa, LPS and high CRP concentrations were found in all AAA patients. The IgG levels were similar in patients with stable and unstable AAA (both for Aa and Pg). Among investigated blood biomarkers, only CRP was associated with AAA stability. The amount of LPS in saliva, supra, and subgingival plaque were significantly associated with the systemic LPS (p <0.05). CONCLUSIONS This post-hoc study emphasizes the presence of antibodies against Pg and Aa, LPS and high CRP concentrations in all AAA patients. The presence of Pg in saliva and subgingival plaque was significantly associated with the blood LPS levels. For further studies investigating periodontitis and systemic diseases, specific predictive blood biomarkers should be considered instead of the use of antibodies alone.
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Affiliation(s)
- Leila Salhi
- Department of Periodontology, Buccal Surgery and Implantology, Faculty of Medicine, Liège, Belgium
| | - Patrick Rijkschroeff
- Department of Periodontology , Academic Centre for Dentistry Amsterdam, Vrije Universiteit (VU) Amsterdam, Amsterdam, Netherlands
| | - Dorien Van Hede
- Department of Periodontology, Buccal Surgery and Implantology, Faculty of Medicine, Liège, Belgium
| | - Marja L. Laine
- Department of Periodontology , Academic Centre for Dentistry Amsterdam, Vrije Universiteit (VU) Amsterdam, Amsterdam, Netherlands
| | - Wim Teughels
- Department of Oral Health Sciences, KU Leuven & Dentistry, University Hospitals Leuven, Leuven, Belgium
| | - Natzi Sakalihasan
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Liège, Belgium
| | - France Lambert
- Department of Periodontology, Buccal Surgery and Implantology, Faculty of Medicine, Liège, Belgium
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Investigating the Link between Alpha-1 Antitrypsin Deficiency and Abdominal Aortic Aneurysms. Ann Vasc Surg 2021; 77:195-201. [PMID: 34455044 DOI: 10.1016/j.avsg.2021.05.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Alpha-1-Antitrypsin (AAT) is one of the major plasmatic protease inhibitors. In the last decade, an association between Alpha-1-Antitrypsin Deficiency (AATD) and Abdominal Aortic Aneurysms (AAA) has been hypothesized. Multiple factors may be involved in AAA's etiopathogenesis, and an underlying structural defect of the extracellular matrix (ECM) is always present. AATD could be a reasonable risk factor for AAA because it is related to protease/antiprotease imbalance and enhanced ECM degradation of the vessel wall. METHODS We performed genotyping of 138 patients hospitalized in the Vascular Surgery Division of the ASST-Spedali Civili di Brescia, Italy, for nontraumatic rupture of AAA. The second purpose was to observe the distribution of main nongenetic risk factors for AAA between patients with and without AATD. RESULTS Out of 138 patients, 22 were found with AATD: 16 MS, 1 SS, 3 MZ, and 2 with a new rare AAT variant. When compared to the general Italian population, our cohort's frequency of deficient S allele was significantly higher (7.8 vs. 2.2% respectively, P < 0.01), whereas the deficient Z allele was similar (1.1 vs. 1.3% respectively, P > 0.05). Although we found no differences in age, gender, hypertension, diabetes, and smoke habits between AAA patients with and without AATD, hyperlipidemia was significantly less frequent in patients with AATD (46.4 vs. 12.5% respectively, P < 0.05). CONCLUSIONS In our AAA patients' cohort, the S allele frequency was higher than in the general Italian population. Our results support the hypothesis that AATD might be a risk factor for AAA.
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Novel and Stable Dual-Color IL-6 and IL-10 Reporters Derived from RAW 264.7 for Anti-Inflammation Screening of Natural Products. Int J Mol Sci 2019; 20:ijms20184620. [PMID: 31540402 PMCID: PMC6769898 DOI: 10.3390/ijms20184620] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023] Open
Abstract
Our previous study suggested that the interleukin (IL)-6 and IL-10 could serve as good biomarkers for chronic inflammatory disease. We previously established an IL-6 and IL-10 reporters assay that could examine reporter activity along with the reference gene in LPS-induced RAW 264.7 cells. In this study, we described new and stable RAW 264.7 derived dual-color IL-6/gapdh and IL-10/gapdh reporters. This assay allowed us to easily determine relative IL-6 and IL-10 levels with 96-well plate within one step. We evaluated the relative IL-6 and IL-10 levels in the LPS-induced stable cells testing 52 natural products by real-time bioluminescence monitoring and time-point determination using a microplate luminometer. The relative IL-6 and IL-6/IL-10 values decreased by the crude ethanol extracts from nutmeg and by 1′S-1′-acetoxychavicol from greater galangal using real-time bioluminescence monitoring. At the same time, the relative IL-10 was induced. The relative IL-6 and IL-6/IL-10 decreased by crude ethanol extracts from nutmeg and 1′S-1′-acetoxychavicol acetate at 6 h. Only crude ethanol extract from nutmeg induced IL-10 at 6 h. We suggested that the use of these stable cells by real-time monitoring could serve as a screening assay for anti-inflammatory activity and may be used to discover new drugs against chronic inflammatory disease.
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Salhi L, Rompen E, Sakalihasan N, Laleman I, Teughels W, Michel JB, Lambert F. Can Periodontitis Influence the Progression of Abdominal Aortic Aneurysm? A Systematic Review. Angiology 2018; 70:479-491. [DOI: 10.1177/0003319718821243] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Leila Salhi
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
| | - Eric Rompen
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
| | - Natzi Sakalihasan
- Department of Cardiovascular and Thoracic Surgery, Surgical Research Centre, GIGA-Cardiovascular Science Unit, University of Liège, Liège, Belgium
| | - Isabelle Laleman
- Department of Oral Health Sciences, KU Leuven & Dentistry University Hospitals Leuven, Leuven, Belgium
| | - Wim Teughels
- Department of Periodontology, Research Group for Microbial Adhesion, Catholic University Leuven, Leuven, Belgium
| | - Jean-Baptiste Michel
- DRE Laboratory for Translational Vascular Science, Inserm Denis Diderot University, Paris, France
| | - France Lambert
- Dental Biomaterials Research Unit, Head of Clinic, Department of Periodontology and Oral Surgery, University of Liège, Liège, Belgium
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Ahmad M, Kuravi S, Hodson J, Rainger GE, Nash GB, Vohra RK, Bradbury AW. The Relationship Between Serum Interleukin-1α and Asymptomatic Infrarenal Abdominal Aortic Aneurysm Size, Morphology, and Growth Rates. Eur J Vasc Endovasc Surg 2018; 56:130-135. [PMID: 29456054 DOI: 10.1016/j.ejvs.2018.01.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 01/16/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVE/BACKGROUND In a pilot study, a relationship between abdominal aortic aneurysm (AAA) diameter and serum interleukin (IL)-1α levels was reported, and that endothelial cell (EC) activation in vitro in response to serum from patients with AAA was blocked by anti-IL-1α antibodies. The aim of the present study was to further investigate the relationship between serum IL-1α and asymptomatic infrarenal AAA size, morphology, and growth rates. METHODS Serum IL-1α was measured using enzyme linked immunosorbent assay in 101 patients with asymptomatic, infrarenal AAA and related to aneurysm size, morphology, and growth rates. RESULTS IL-1α was measured in 101 patients. There was no statistically significant difference in mean age between men and women. IL-1α was detectable in 62.4% of patients; median IL-1α titre was 3.26 pg/mL. There was no statistically significant relationship between IL-1α and maximum AAA antero-posterior diameter as measured by ultrasound (p = .649), AAA morphology (aortic length [p = .394], sac [p = .369], and thrombus volume [p = .629]) as measured on computed tomography, absolute increase in AAA diameter (p = .214), or AAA growth rate (p = .230). CONCLUSION IL-1α is detectable in the majority of patients with infrarenal AAA, but the cause and clinical significance of this novel observation remains unknown.
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Affiliation(s)
- Mehtab Ahmad
- Academic Department of Vascular Surgery, Heart of England NHS Foundation Trust, Birmingham, UK; The Institute of Cardiovascular Science, College of Medical and Dental Sciences, University of Birmingham, UK.
| | - Sahithi Kuravi
- Department of Statistics, Wolfson Computer Laboratory, University of Birmingham, Birmingham, UK
| | - James Hodson
- Department of Vascular Surgery, University Hospitals Birmingham NHS Foundation Trust, UK
| | - G Ed Rainger
- Department of Statistics, Wolfson Computer Laboratory, University of Birmingham, Birmingham, UK
| | - Gerard B Nash
- Department of Statistics, Wolfson Computer Laboratory, University of Birmingham, Birmingham, UK
| | - Rajiv K Vohra
- The Institute of Cardiovascular Science, College of Medical and Dental Sciences, University of Birmingham, UK
| | - Andrew W Bradbury
- Academic Department of Vascular Surgery, Heart of England NHS Foundation Trust, Birmingham, UK
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A Novel Modification of the Murine Elastase Infusion Model of Abdominal Aortic Aneurysm Formation. Ann Vasc Surg 2017; 42:246-253. [PMID: 28288888 DOI: 10.1016/j.avsg.2017.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/17/2016] [Accepted: 01/14/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND To create a novel procedure that will decrease the mortality of experimental animals in the intraarterial infusion of elastase abdominal aortic aneurysm (AAA) model. METHODS Novel models were created by means of direct puncture in the infrarenal abdominal aortic aorta, intraluminal elastase in the 1-cm segment of abdominal aorta. Femoral artery cannula approach and infusing with elastase was considered as the traditional group and that infusing with saline solution as the control group. Survival rate, morphology and histology of aneurysms, and inflammation mediators were calculated. RESULTS Among the 36 rats, the average length from testicular arteries to left iliolumbar artery was 1.18 ± 0.22 cm, and 77.8% of them were longer than 1 cm. Procedure time was significantly shorter in novel group than that in 2 other groups (P = 0.006; P < 0.0001). During 24 hr postoperation, no death was observed in the novel group. Within 4 wk, survival rate in the control group was 60.6% and 80.8% in the novel group whereas 41.0% in the traditional group. Till the second week, all rats in the traditional and novel group had formed AAAs. And then, the survival rates and rupture rates of AAA between the 2 groups were similar within the following 2 wk (P = 0.487; P = 0.539). Inflammation degree and elastase content in intima media of aneurysms were similar (P = 0.720). However, Tumor necrosis factor alpha and Interleukin-1 beta levels were significantly lower in the novel group than those in the traditional group (P < 0.0001; P < 0.0001). CONCLUSIONS A novel rat AAA model was created by intraluminal elastase infusion through direct puncture the infrarenal aorta. This model is efficient and reliable, with a high survival rate and with similar morphology and histology of aortic aneurysms.
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Ye Z, Bailey KR, Austin E, Kullo IJ. Family history of atherosclerotic vascular disease is associated with the presence of abdominal aortic aneurysm. Vasc Med 2015; 21:41-6. [PMID: 26566659 DOI: 10.1177/1358863x15611758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We investigated whether family history (FHx) of atherosclerotic cardiovascular disease (ASCVD) was associated with presence of abdominal aortic aneurysm (AAA). The study cohort comprised of 696 patients with AAA (70±8 years, 84% men) and 2686 controls (68±10 years, 61% men) recruited from noninvasive vascular and stress electrocardiogram (ECG) laboratories at Mayo Clinic. AAA was defined as a transverse diameter of abdominal aorta ⩾ 3 cm or history of AAA repair. Controls were not known to have AAA. FHx was defined as having at least one first-degree relative with aortic aneurysm or with onset of ASCVD (coronary, cerebral or peripheral artery disease) before age 65 years. FHx of aortic aneurysm or ASCVD were each associated with presence of AAA after adjustment for age, sex, conventional risk factors and ASCVD: adjusted odds ratios (OR; 95% confidence interval): 2.17 (1.66-2.83, p < 0.01) and 1.31 (1.08-1.59, p < 0.01), respectively. FHx of ASCVD remained associated with AAA after additional adjustment for FHx of aortic aneurysm: adjusted OR: 1.27 (1.05-1.55, p = 0.01). FHx of ASCVD in multiple arterial locations was associated with higher odds of having AAA: the adjusted odds were 1.23 times higher for each additionally affected arterial location reported in the FHx (1.08-1.40, p = 0.01). Our results suggest both unique and shared environmental and genetic factors mediating susceptibility to AAA and ASCVD.
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Affiliation(s)
- Zi Ye
- Division of Cardiovascular Diseases and the Gonda Vascular Center, Mayo Clinic, Rochester, MN, USA
| | - Kent R Bailey
- Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Erin Austin
- Division of Cardiovascular Diseases and the Gonda Vascular Center, Mayo Clinic, Rochester, MN, USA
| | - Iftikhar J Kullo
- Division of Cardiovascular Diseases and the Gonda Vascular Center, Mayo Clinic, Rochester, MN, USA
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Stather PW, Sidloff DA, Dattani N, Gokani VJ, Choke E, Sayers RD, Bown MJ. Meta-analysis and meta-regression analysis of biomarkers for abdominal aortic aneurysm. Br J Surg 2014; 101:1358-72. [DOI: 10.1002/bjs.9593] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/05/2014] [Accepted: 05/19/2014] [Indexed: 12/30/2022]
Abstract
Abstract
Background
Many studies have investigated the systemic and local expression of biomarkers in patients with abdominal aortic aneurysm (AAA). The natural history of AAA varies between patients, and predictors of the presence and diameter of AAA have not been determined consistently. The aim of this study was to perform a systematic review, meta-analysis and meta-regression of studies comparing biomarkers in patients with and without AAA, with the aim of summarizing the association of identified markers with both AAA presence and size.
Methods and results
Literature review identified 106 studies suitable for inclusion. Meta-analysis demonstrated a significant difference between matrix metalloproteinase (MMP) 9, tissue inhibitor of matrix metalloproteinase 1, interleukin (IL) 6, C-reactive protein (CRP), α1-antitrypsin, triglycerides, lipoprotein(a), apolipoprotein A and high-density lipoprotein in patients with and without AAA. Although meta-analysis was not possible for MMP-2 in aortic tissue, tumour necrosis factor α, osteoprotegerin, osteopontin, interferon γ, intercellular cell adhesion molecule 1 and vascular cell adhesion molecule 1, systematic review suggested an increase in these biomarkers in patients with AAA. Meta-regression analysis identified a significant positive linear correlation between aortic diameter and CRP level.
Conclusion
A wide variety of biomarkers are dysregulated in patients with AAA, but their clinical value is yet to be established. Future research should focus on the most relevant biomarkers of AAA, and how they could be used clinically.
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Affiliation(s)
- P W Stather
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - D A Sidloff
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - N Dattani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - V J Gokani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - E Choke
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - R D Sayers
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - M J Bown
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- National Institute for Health Research Leicester Biomedical Research Unit, University of Leicester, Leicester, UK
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Takagi H, Watanabe T, Mizuno Y, Kawai N, Umemoto T. Circulating interleukin-6 levels are associated with abdominal aortic aneurysm presence: a meta-analysis and meta-regression of case-control studies. Ann Vasc Surg 2014; 28:1913-22. [PMID: 25011090 DOI: 10.1016/j.avsg.2014.06.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 05/11/2014] [Accepted: 06/20/2014] [Indexed: 11/20/2022]
Abstract
BACKGROUND In a number of relatively small-size studies, investigators have measured and compared circulating interleukin-6 (IL-6) levels in cases with abdominal aortic aneurysm (AAA) and controls without AAA to assess its possible role in the pathogenesis or progression of AAA. To summarize the present evidence for an association between circulating IL-6 levels and AAA presence, we performed a meta-analysis of case-control studies that compared circulating IL-6 levels between patients with AAA and subjects without AAA. METHODS MEDLINE and EMBASE were searched through December 2013 using Web-based search engines (PubMed and OVID). Eligible studies were case-control studies of patients with AAA and subjects without AAA reporting circulating IL-6 levels. For each study, data regarding plasma or serum IL-6 levels in both the AAA and control groups were used to generate standardized mean differences (SMDs) and 95% confidence intervals (CIs). Mixed-effects (unrestricted maximum likelihood) meta-regression analyses were performed to determine whether the differences in circulating IL-6 levels were modulated by the prespecified factors. RESULTS Our search identified 13 eligible studies enrolling a total of 1,029 cases with AAA and 924 controls without AAA. Pooled analysis of the 13 studies demonstrated significantly greater circulating IL-6 levels in the AAA group than those in the control group (random-effects SMD 0.59; 95% CI 0.37-0.80; P for effect < 0.00001; P for heterogeneity < 0.0000). The meta-regression coefficient for the mean age (P = 0.10196) and the proportion of current smokers (P = 0.29893) was not statistically significant. That for the mean AAA diameter, however, was significantly positive (coefficient 0.02789; 95% CI 0.00778-0.04800; P = 0.00657), and that for the proportion of men was significantly negative (coefficient -0.01823; 95% CI -0.03202 to -0.00445; P = 0.00952). CONCLUSIONS Circulating IL-6 levels are greater in patients with AAA than those in subjects without AAA, which suggest that greater circulating IL-6 levels are associated with AAA presence. As the mean AAA diameter and the proportion of men increase, circulating IL-6 levels in patients with AAA are respectively more and less greater than those in controls without AAA.
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Affiliation(s)
- Hisato Takagi
- Department of Cardiovascular Surgery, Shizuoka Medical Center, Shizuoka, Japan.
| | - Taku Watanabe
- Department of Cardiovascular Surgery, Shizuoka Medical Center, Shizuoka, Japan
| | - Yusuke Mizuno
- Department of Cardiovascular Surgery, Shizuoka Medical Center, Shizuoka, Japan
| | - Norikazu Kawai
- Department of Cardiovascular Surgery, Shizuoka Medical Center, Shizuoka, Japan
| | - Takuya Umemoto
- Department of Cardiovascular Surgery, Shizuoka Medical Center, Shizuoka, Japan
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Role of TGF-β pathway polymorphisms in sporadic thoracic aortic aneurysm: rs900 TGF-β2 is a marker of differential gender susceptibility. Mediators Inflamm 2014; 2014:165758. [PMID: 24707114 PMCID: PMC3953613 DOI: 10.1155/2014/165758] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 01/15/2014] [Indexed: 11/17/2022] Open
Abstract
Thoracic aortic aneurysm (TAA) is a progressive disorder involving gradual dilation of ascending and/or descending thoracic aorta with dissection or rupture as complications. It occurs as sporadic or defined syndromes/familial forms.Genetic, molecular and cellular mechanims
of sporadic TAA forms are poorly characterized and known. Thus, our interest has been focused on investigating the role of genetic variants of transforming growth factor-β (TGF-β) pathways in TAA risk. On the other hand, no data on the role of genetic variants of TGF-β pathway in sporadic TAA exist until now. In addition, other cytokines, including IL-10, orchestrate TAA pathophysiology. Their balance determines the ultimate fate of the aortic wall as healing atherosclerosis or aneurysm formation. Thus, in this paper it was analyzed the role of ten polymorphisms of genes encoding TGF-β isoforms and receptors, and IL-10 in sporadic TAA. Our study included cases affected by sporadic TAA and two control groups. The most relevant finding obtained allows us to propose that rs900 TGF-β2 SNP is associated with sporadic TAA in women. This might open new perspectives for the analysis of sporadic TAA susceptibility factors and prevention.
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Harrison SC, Smith AJ, Jones GT, Swerdlow DI, Rampuri R, Bown MJ, Folkersen L, Baas AF, de Borst GJ, Blankensteijn JD, Price JF, van der Graaf Y, McLachlan S, Agu O, Hofman A, Uitterlinden AG, Franco-Cereceda A, Ruigrok YM, van't Hof F, Powell JT, van Rij AM, Casas JP, Eriksson P, Holmes MV, Asselbergs FW, Hingorani AD, Humphries SE. Interleukin-6 receptor pathways in abdominal aortic aneurysm. Eur Heart J 2013; 34:3707-16. [PMID: 23111417 PMCID: PMC3869968 DOI: 10.1093/eurheartj/ehs354] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2012] [Revised: 08/24/2012] [Accepted: 09/10/2012] [Indexed: 11/25/2022] Open
Abstract
METHODS We conducted a systematic review and meta-analysis of studies reporting circulating IL-6 in AAA, and new investigations of the association between a common non-synonymous functional variant (Asp358Ala) in the IL-6R gene (IL6R) and AAA, followed the analysis of the variant both in vitro and in vivo. Inflammation may play a role in the development of abdominal aortic aneurysms (AAA). Interleukin-6 (IL-6) signalling through its receptor (IL-6R) is one pathway that could be exploited pharmacologically. We investigated this using a Mendelian randomization approach. RESULTS Up to October 2011, we identified seven studies (869 cases, 851 controls). Meta-analysis demonstrated that AAA cases had higher levels of IL-6 than controls [standardized mean difference (SMD) = 0.46 SD, 95% CI = 0.25-0.66, I(2) = 70%, P = 1.1 × 10-5 random effects]. Meta-analysis of five studies (4524 cases/15 710 controls) demonstrated that rs7529229 (which tags the non-synonymous variant Asp358Ala, rs2228145) was associated with a lower risk of AAA, per Ala358 allele odds ratio 0.84, 95% CI: 0.80-0.89, I(2) = 0%, P = 2.7 × 10-11). In vitro analyses in lymphoblastoid cell lines demonstrated a reduction in the expression of downstream targets (STAT3, MYC and ICAM1) in response to IL-6 stimulation in Ala358 carriers. CONCLUSIONS A Mendelian randomization approach provides robust evidence that signalling via the IL-6R is likely to be a causal pathway in AAA. Drugs that inhibit IL-6R may play a role in AAA management.
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Affiliation(s)
- Seamus C. Harrison
- Department of Cardiovascular Genetics,Institute of Cardiovascular Science, University College London, Rayne Building, University Street, London WC1E 6JJ, UK
- BHF Laboratories, Centre for Cardiovascular Genetics, Institute of Cardiovascular Science, University College London (UCL), The Rayne Building, 5 University Street, London WC1E 6JF, UK
| | - Andrew J.P. Smith
- Department of Cardiovascular Genetics,Institute of Cardiovascular Science, University College London, Rayne Building, University Street, London WC1E 6JJ, UK
| | | | | | - Riaz Rampuri
- Department of Cardiovascular Genetics,Institute of Cardiovascular Science, University College London, Rayne Building, University Street, London WC1E 6JJ, UK
| | - Matthew J. Bown
- Department of Cardiovascular Sciences, Leicester University, Leicester LE2 7LX, UK
| | | | - Lasse Folkersen
- Atherosclerosis Research Unit, Department of Medicine Solna, Karolinska Institute, Stockholm 171 76, Sweden
| | - Annette F. Baas
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht 3584CG, The Netherlands
| | - Gert Jan de Borst
- Vascular Surgery, UMC Utrecht, PO Box 85500, G04.129, Utrecht 3508GA, The Netherlands
| | - Jan D. Blankensteijn
- Department of Surgery, Vascular Surgery, VU Medical Center, PO Box 7057 ZH F 018, Amsterdam 1007, The Netherlands
| | - Jacqueline F. Price
- Wolfson Unit for Prevention of Peripheral Vascular Diseases, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
| | - Yolanda van der Graaf
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht 3584CG, The Netherlands
| | - Stela McLachlan
- Wolfson Unit for Prevention of Peripheral Vascular Diseases, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
| | - Obi Agu
- Vascular Surgery, University College London Hospital, London NW1 2BU, UK
| | - Albert Hofman
- Department of Epidemiology, Erasmus Medical Center, Rotterdam 3000CA, The Netherlands
| | - Andre G. Uitterlinden
- Department of Epidemiology, Erasmus Medical Center, Rotterdam 3000CA, The Netherlands
| | | | - Ynte M. Ruigrok
- Department of Neurology and Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht 3508 GA, The Netherlands
| | - F.N. van't Hof
- Department of Neurology and Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht 3508 GA, The Netherlands
| | - Janet T. Powell
- Vascular Surgery Research Group, Imperial College Charing Cross Hospital, 4th Floor, Fulham Palace Road, London W6 8RF, UK
| | | | - Juan P. Casas
- London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - Per Eriksson
- Department of Cardiovascular Sciences, Leicester University, Leicester LE2 7LX, UK
| | - Michael V. Holmes
- Genetic Epidemiology, University College London, London WC1E 6JJ, UK
| | - Folkert W. Asselbergs
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Medical Genetics, Biomedical Genetics, University Medical Center, Utrecht, The Netherlands
| | | | - Steve E. Humphries
- Department of Cardiovascular Genetics,Institute of Cardiovascular Science, University College London, Rayne Building, University Street, London WC1E 6JJ, UK
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Qin Y, Yang Y, Liu R, Cao X, Liu O, Liu J, Wang M, Yang Y, Chen Z, Zhang H, Du J. Combined Cathepsin S and hs-CRP predicting inflammation of Abdominal Aortic Aneurysm. Clin Biochem 2013; 46:1026-1029. [DOI: 10.1016/j.clinbiochem.2013.05.065] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 05/18/2013] [Accepted: 05/20/2013] [Indexed: 01/11/2023]
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Kadoglou NP, Papadakis I, Moulakakis KG, Ikonomidis I, Alepaki M, Moustardas P, Lampropoulos S, Karakitsos P, Lekakis J, Liapis CD. Arterial stiffness and novel biomarkers in patients with abdominal aortic aneurysms. ACTA ACUST UNITED AC 2012; 179:50-4. [DOI: 10.1016/j.regpep.2012.08.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/25/2012] [Accepted: 08/29/2012] [Indexed: 01/23/2023]
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18
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Hellenthal FA, Pulinx B, Welten RJTJ, Teijink JA, van Dieijen-Visser MP, Wodzig WK, Schurink GWH. Circulating Biomarkers and Abdominal Aortic Aneurysm Size. J Surg Res 2012; 176:672-8. [DOI: 10.1016/j.jss.2011.09.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 08/17/2011] [Accepted: 09/19/2011] [Indexed: 10/16/2022]
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Demyanets S, Huber K, Wojta J. Vascular effects of glycoprotein130 ligands--part II: biomarkers and therapeutic targets. Vascul Pharmacol 2012; 57:29-40. [PMID: 22245786 DOI: 10.1016/j.vph.2011.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 12/15/2011] [Accepted: 12/25/2011] [Indexed: 12/13/2022]
Abstract
Glycoprotein130 (gp130) ligands are defined by the use of the common receptor subunit gp130 and comprise interleukin (IL)-6, oncostatin M (OSM), IL-11, leukemia inhibitory factor (LIF), cardiotrophin-1 (CT-1), cardiotrophin-like cytokine (CLC), ciliary neurotrophic factor (CNTF), IL-27 and neuropoietin (NP). In part I of this review we addressed the pathophysiological functions of gp130 ligands with respect to the vascular wall. In part II of this review on the vascular effects of gp130 ligands we will discuss data about possible use of these molecules as biomarkers to predict development or progression of cardiovascular diseases. Furthermore, the possibility to modulate circulating levels of gp130 ligands or their tissue expression by specific antibodies, soluble gp130 protein, renin-angiotensin-aldosterone system (RASS) inhibitors, statins, agonists of peroxisome proliferator-activated receptors (PPAR), hormone replacement therapy, nonsteroidal anti-inflammatory drugs (NSAID) or lifestyle modulating strategies are presented. Recent knowledge about the application of recombinant cytokines from the gp130 cytokine family as therapeutic agents in obesity or atherosclerosis is also summarized. Thus the purpose of this review is to cover a possible usefulness of gp130 ligands as biomarkers and targets for therapy in cardiovascular pathologies.
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Affiliation(s)
- Svitlana Demyanets
- Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
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20
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Pulinx B, Hellenthal FAMVI, Hamulyák K, van Dieijen-Visser MP, Schurink GWH, Wodzig WKWH. Differential protein expression in serum of abdominal aortic aneurysm patients - a proteomic approach. Eur J Vasc Endovasc Surg 2011; 42:563-70. [PMID: 21843957 DOI: 10.1016/j.ejvs.2011.07.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 07/16/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aim of the study is to investigate the differential expression of proteins in serum of abdominal aortic aneurysm (AAA) patients in relation to aneurysm size (D(max)) and progression. METHODS Two-dimensional differential in-gel electrophoresis (2D-DIGE) together with tandem mass spectrometry (MS/MS) was used to analyse the serum proteome from patients with small (D(max) 30-54 mm) AAA, either stable (increase D(max) <5 mm year⁻¹; n = 8) or progressive (increase D(max) ≥5 mm year⁻¹; n = 8), and large (D(max) ≥ 55 mm; n = 8) AAA. The identified proteins were quantitatively validated in a larger population (n = 80). RESULTS Several proteins were differentially expressed in serum of small stable, small progressive and large AAA. Three validated proteins (immunoglobulin G (IgG), α1-antitrypsin (α1-AT) and Factor XII activity) showed strong correlation with D(max). Size combined with either Factor XII activity or α1-antitrypsin had minimal effect on the prognostic value in predicting aneurysm progression compared with size alone (area under the curve (AUC), 0.85; 95% confidence interval (CI), 0.73-0.97; p < 0.001 and AUC, 0.85; 95% CI, 0.72-0.98; p < 0.001 vs. AUC, 0.83; 95% CI, 0.71-0.96; p < 0.001, respectively). CONCLUSION The present study indicates that both Factor XII and α1-antitrypsin are found in increased amounts in the serum of patients with expanding AAA. However, combination of either Factor XII or α1-antitrypsin with aneurysm diameter had little effect on prediction of aneurysm progression versus diameter alone.
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Affiliation(s)
- B Pulinx
- Department of Clinical Chemistry, Maastricht University Medical Centre, Maastricht, The Netherlands
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Yates CM, Abdelhamid M, Adam DJ, Nash GB, Bradbury AW, Rainger GE. Endovascular aneurysm repair reverses the increased titer and the inflammatory activity of interleukin-1α in the serum of patients with abdominal aortic aneurysm. J Vasc Surg 2011; 54:497-503. [PMID: 21620624 DOI: 10.1016/j.jvs.2011.02.061] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 02/23/2011] [Accepted: 02/26/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To examine serum cytokine/chemokine profiles before and 6 months after endovascular repair (EVAR) of abdominal aortic aneurysm (AAA) and to determine whether they correlate with serum inflammatory activity using an in vitro model of leukocyte recruitment. METHODS Serum IL-1-α, IL-1β, IL-4, IL-6, IL-8, IL-10, IFN-γ, IP-10, MCP-1, TNF-α, and TNF-β were measured using a cytometry-based immunoassay. To test patient serum for direct inflammatory activity, human endothelial cells (EC) were stimulated with 30% patient serum for 24 hours. To test patient serum for the ability to prime EC for inflammatory responses, EC were incubated with 30% patient serum for 24 hours, followed by stimulation with low-dose (5 U/mL) TNF for 4 hours. Under both regimens of stimulation, the degree of EC activation was assessed by assaying neutrophil recruitment in a flow-based model. RESULTS Only IL-1α (67.9 ± 10.4 pg/mL vs 41.9 ± 7.4 pg/mL) and IL-8 (51.5 ± 5.1 vs 32.6 ± 4.7 pg/mL) changed significantly after surgery. Patient serum alone was unable to activate EC. However, serum from both time points could prime EC responses to low-dose TNF. Thus, after priming with preoperative serum, EC stimulated with TNF could recruit 76.7 ± 12.0 neutrophils/mm(2) into the subendothelial cell space. Post-EVAR serum was significantly less effective (44.4 ± 10.2 neutrophils/mm(2)). This reduction in neutrophil recruitment correlated with reduced IL-1α in post-EVAR serum. The addition of a neutralizing antibody against IL-1α to pre-EVAR serum inhibited EC priming and neutrophil recruitment, strongly implying that this cytokine was the priming agent. CONCLUSION EVAR reduces serum IL-1α and its inflammatory activity in patient serum. IL-1α is, therefore, implicated in the molecular pathology of AAAs and may have potential as a clinically useful biomarker.
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Affiliation(s)
- Clara M Yates
- School of Clinical and Experimental Medicine, The University of Birmingham, Birmingham, UK
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Wang Y, Zhang F, Yang W, Xue S. Nicotine Induces Pro-inflammatory Response in Aortic Vascular Smooth Muscle Cells Through a NFκB/Osteopontin Amplification Loop-Dependent Pathway. Inflammation 2011; 35:342-9. [DOI: 10.1007/s10753-011-9324-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
PURPOSE OF REVIEW IgG4-related systemic disease is a recently proposed entity characterized by high serum IgG4 concentrations, sclerosing inflammation containing numerous IgG4-positive plasmacytes, dramatic responsiveness to steroid therapy, and occurrence of multiple organs. This review described that some cases of inflammatory abdominal aortic aneurysm (IAAA) have similar clinicopathological features that are now considered to represent aortic lesions of IgG4-related systemic disease under the concept of IgG4-related IAAA. RECENT FINDINGS IgG4-related IAAA is characterized by high serum IgG4 and immunoglobulin E levels, high titers of antinuclear antibodies, and high prevalence of allergic disorders such as bronchial asthma. The patients show a risk of developing IgG4-related systemic diseases in other organs during their life. Histologically, sclerosing inflammation containing numerous IgG4-positive plasmacytes is observed predominantly in the adventitia. Similar lesions have also been reported in the thoracic aorta and large arteries. SUMMARY Recognition of the fact that IgG4-related systemic disease could involve the vascular lesions offers potential new management of those. However, only 3 years have passed since the first report of IgG4-related IAAA. Further studies are necessary to elucidate other vascular lesions associated with IgG4-related systemic disease, the usefulness of steroid therapy for the management of IgG4-IAAA, and underlying pathological and immunological characteristics.
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Bradley DT, Badger SA, Bown MJ, Sayers RD, Hughes AE. Coding polymorphisms in the genes of the alternative complement pathway and abdominal aortic aneurysm. Int J Immunogenet 2011; 38:243-8. [PMID: 21352499 DOI: 10.1111/j.1744-313x.2011.01002.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Variants in the genes of the alternative complement pathway are associated with risk of numerous inflammatory diseases. Abdominal aortic aneurysm is associated with inflammation and is a common cause of illness and death among European populations. This study tested 49 single nucleotide polymorphisms, including common putatively functional polymorphisms, in the genes of the alternative complement cascade (CFH, CFB, CFD, CFI, properdin, CR1, CR1L, CR2, CD46, vitronectin, C3, C5, C6, C7, C8A, C8B, C8G and C9). The study group were 434 cases with infra-renal aortic diameter ≥30 mm and 378 disease-free controls from two UK centres, all with self-reported European ancestry. There was no evidence for significant association with presence or size of aneurysm following correction for multiple testing. This study suggests that variation in the genes of the alternative pathway is not an important cause of abdominal aortic aneurysm development.
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Affiliation(s)
- D T Bradley
- Centre for Public Health, Institute of Clinical Sciences, Queen's University Belfast, Royal Victoria Hospital, Grosvenor Road, Belfast, UK.
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25
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Current world literature. Curr Opin Rheumatol 2010; 23:125-30. [PMID: 21124095 DOI: 10.1097/bor.0b013e3283422cce] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kasashima S, Zen Y. IgG4-related Inflammatory Abdominal Aortic Aneurysm, Spectrum of IgG4-related Chronic Periaortitis. Ann Vasc Dis 2010; 3:182-9. [PMID: 23555408 DOI: 10.3400/avd.sasvp01002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2010] [Indexed: 12/24/2022] Open
Affiliation(s)
- Satomi Kasashima
- Department of Pathology, National Hospital Organization, Kanazawa Medical Center, Kanazawa, Japan ; Department of Clinical Laboratory, National Hospital Organization, Kanazawa Medical Center, Kanazawa, Japan
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Naylor S, Gamie Z, Vohra RS, Puppala S, Kent PJ, Scott DJA. Lower respiratory tract infection and rapid expansion of an abdominal aortic aneurysm: a case report. J Med Case Rep 2010; 4:333. [PMID: 20964810 PMCID: PMC2978231 DOI: 10.1186/1752-1947-4-333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Accepted: 10/21/2010] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION The rate of abdominal aortic aneurysm expansion is related to multiple factors. There is some evidence that inflammation can accelerate aneurysm expansion. However, the association between pulmonary sepsis and rapid abdominal aortic aneurysm expansion is rarely reported. CASE PRESENTATION Here we present a case of a rapidly expanding abdominal aortic aneurysm in a 68-year-old Caucasian man with a concomitant lower respiratory tract infection and systemic sepsis requiring intensive monitoring and urgent endovascular intervention. Our patient had an uncomplicated post-operative recovery and a follow-up computed tomography scan at one month demonstrated no evidence of an endoleak. CONCLUSION This case highlights the potential association between pulmonary sepsis and rapid abdominal aortic aneurysm expansion. In such cases, a policy of frequent monitoring should be adopted to identify those patients requiring definitive management.
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Affiliation(s)
- Steven Naylor
- The Leeds Vascular Institute, The General Infirmary at Leeds, Great George Street, Leeds LS1 3EX, UK.
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28
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Muehling BM, Paintner A, Marx N, Barth TFE, Babiak C, Orend KH. In Vivo Study on the Expression Pattern of Resistin in Patients With Abdominal Aortic Aneurysm. Vasc Endovascular Surg 2010; 45:63-8. [DOI: 10.1177/1538574410380935] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To study the expression pattern of resistin in abdominal aortic aneurysms and to correlate its plasma levels to aneurysm size and statin therapy. Patients and Methods: From 25 patients on regular and 38 patients without statin therapy tissue specimen and plasma samples were obtained for analysis. Results: Demographic data, past medical history, and body mass index showed no significant differences between the statin and no statin group. Immunohistochemistry showed positive stainings for resistin in all sections and in part colocalization to CD 68 positive cells. Patients with large aneurysms showed significant correlation of C-reactive protein (CRP) and interleukin 10 (IL-10) levels; patients on statin medication had significantly lower plasma levels of resistin and CRP. Conclusion: In contrast to IL-10 and CRP plasma levels of resistin are not correlated to aneurysm diameter; yet statin therapy results in decrease of resistin and CRP, suggesting an anti-inflammatory action in patients with abdominal aortic aneurysms (AAAs).
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Affiliation(s)
- Bernd M. Muehling
- Department of Thoracic and Vascular Surgery, University of Ulm, Ulm, Germany,
| | - Agnes Paintner
- Department of Thoracic and Vascular Surgery, University of Ulm, Ulm, Germany
| | - Nikolaus Marx
- Department of Internal Medicine, University Hospital of Aachen, Aachen, Germany
| | | | | | - Karl H. Orend
- Department of Thoracic and Vascular Surgery, University of Ulm, Ulm, Germany
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29
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Saratzis A, Abbas AA, Kiskinis D, Melas N, Saratzis N, Kitas GD. Abdominal aortic aneurysm: a review of the genetic basis. Angiology 2010; 62:18-32. [PMID: 20566578 DOI: 10.1177/0003319710373092] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a complex disease with a largely unknown pathophysiological background and a strong genetic component. Various studies have tried to link specific genetic variants with AAA. METHODS Systematic review of the literature (1947-2009). RESULTS A total of 249 studies were identified, 89 of which were eventually deemed relevant to this review. Genetic variants (polymorphisms) in a wide variety of genes, most of which encode proteolytic enzymes and inflammatory molecules, have been associated with AAA development and progression. CONCLUSION The genetic basis of AAA remains unknown, and most results from ''candidate-gene'' association studies are contradictory. Further analyses in appropriately powered studies in large, phenotypically well-characterized populations, including genome-wide association studies, are necessary to elucidate the exact genetic contribution to the pathophysiology of AAA.
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Affiliation(s)
- Athanasios Saratzis
- Russell's Hall Hospital, Dudley Group of Hospitals NHS Foundation Trust, Dudley, West Midlands, UK.
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30
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Enenstein J, Milbauer L, Domingo E, Wells A, Roney M, Kiley J, Wei P, Hebbel RP. Proinflammatory phenotype with imbalance of KLF2 and RelA: risk of childhood stroke with sickle cell anemia. Am J Hematol 2010; 85:18-23. [PMID: 19957349 DOI: 10.1002/ajh.21558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Altered inflammation signaling within the cerebral vasculature may be an important risk factor for stroke in children with sickle cell anemia (SCA). This study examines how differential expression of NFkappaB/p65 (RelA), KLF2, and other transcription factors may act as switches in inflammation signaling leading to observed differences between non-SCA (NS) African Americans and African Americans with SCA who are either at risk (AR) or not at risk (NAR) of childhood stroke based on occurrence of Circle of Willis disease. Clover/Transfac analysis was used to identify overrepresented transcription factor binding motifs on genes associated with inflammation. Transcription factor binding motifs for the NFkappaB family and RFX1 were overrepresented on inflammation signaling gene set analysis. Variations in protein expression were determined by flow cytometry of blood outgrowth endothelial cells (BOECs) from NS, AR, and NAR donors and Western blots of protein extracts from both unstimulated and TNFalpha/IL1beta-stimulated BOECs. BOECs from patients with SCA had more cytoplasmic-derived RelA compared with NS BOECs. Sickle BOECs also had heightened responses to inflammatory stimuli compared with NS BOECs, as shown by increased nuclear RelA, and intracellular adhesion molecule (ICAM) response to TNFalpha/IL1beta stimulation. Multiple control points in RelA signaling were associated with risk of childhood stroke. The ratio of proinflammatory factor RelA to anti-inflammatory factor KLF2 was greater in BOECs from AR donors than NS donors. Group risk of childhood stroke with SCA was greatest among individuals who exhibited increased expression of proinflammatory transcription factors and decreased expression of transcription factors that suppress inflammation.
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Affiliation(s)
- Judy Enenstein
- Vascular Biology Center and Division of Hematology-Oncology-Transplantation, Department of Medicine, University of Minnesota Medical School, 420 Delaware Street SE, Minneapolis, MN 55455, USA.
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