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Otani T, Moriguchi-Goto S, Nishihira K, Oguri N, Shibata Y, Matsuura Y, Kodama T, Asada Y, Hatakeyama K, Yamashita A. Intralesional pentraxin 3 increases with atherosclerotic disease progression, but may protect from thrombosis: Friend or foe? Thromb Res 2024; 234:134-141. [PMID: 38218110 DOI: 10.1016/j.thromres.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/20/2023] [Accepted: 01/04/2024] [Indexed: 01/15/2024]
Abstract
AIM To investigate the role of pentraxin 3 (PTX3) in atherosclerotic disease progression and plaque destabilization, as well as in coronary restenosis after directional coronary atherectomy (DCA). MATERIALS AND METHODS PTX3 contents of early and advanced atherosclerotic lesions of the aorta obtained at autopsy were determined by ELISA and Western blot. Also, coronary plaques of patients with acute coronary syndrome (ACS) or stable angina pectoris (SAP) obtained by DCA were analyzed by immunohistochemistry for PTX3. The effects of PTX3 on smooth muscle cells (SMCs) and thrombogenesis were investigated with cultured human coronary artery SMCs and a flow chamber system, respectively. RESULTS Advanced atherosclerotic lesions contained a significantly larger amount of PTX3 than early lesions (ELISA: 9.96 ± 2.77 ng/100 mg tissue, n = 8 vs 0.24 ± 0.18 ng/100 mg tissue, n = 6, P = 0.0097). Also, ACS plaques contained a significantly larger amount of PTX3 than SAP plaques (PTX3 immunohistochemistry-positive area percentage: 2.88 ± 0.53 %, n = 22 vs 0.67 ± 0.27 %, n = 23, P = 0.0009). Curiously, the patients who would remain free of post-DCA restenosis (n = 19) had plaques with a significantly higher PTX3 immunohistochemistry-positive area percentage than those who would develop restenosis (n = 12) (2.32 ± 0.49 % vs 0.49 ± 0.17 %, P = 0.002). In the mechanistic part of the study, PTX3 inhibited SMC proliferation and migration. PTX3 also inhibited platelet thrombus formation in the condition simulating arterial blood flow. CONCLUSIONS PTX3 is increased in advanced (vs early) atherosclerotic lesions and unstable (vs stable) coronary plaques. The inhibitory effects of PTX3 on SMCs and thrombogenesis suggest that intraplaque PTX3 might have atheroprotective effects.
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Affiliation(s)
- Tomoyuki Otani
- Department of Pathology, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565, Japan; Department of Pathology, Kindai University Faculty of Medicine, 377-2 Ono-higashi, Osaka-Sayama, Osaka 589-8511, Japan
| | - Sayaka Moriguchi-Goto
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki 889-1692, Japan
| | - Kensaku Nishihira
- Department of Cardiology, Miyazaki Medical Association Hospital, 1173 Arita, Miyazaki 880-2102, Japan
| | - Nobuyuki Oguri
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki 889-1692, Japan
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital, 1173 Arita, Miyazaki 880-2102, Japan
| | - Yunosuke Matsuura
- Division of Cardiovascular Medicine and Nephrology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki 889-1692, Japan
| | - Tatsuhiko Kodama
- Department of Nuclear Receptor Medicine, Laboratories for Systems Biology and Medicine (LSBM) at the Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
| | - Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki 889-1692, Japan; Department of Pathology, Miyazaki Medical Association Hospital, 1173 Arita, Miyazaki 880-2102, Japan
| | - Kinta Hatakeyama
- Department of Pathology, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565, Japan; Department of Diagnostic Pathology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan.
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki 889-1692, Japan
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Zhong H, Zhang M, Su X, Qin Y, Lai Y, Chen J, Chen L, Cao A, Liu X, Li S. Time-Dependent Factors Influencing Cardiocerebral Vascular Events in Chronic Hemodialysis Patients: Insights from a Longitudinal Study. Med Sci Monit 2023; 29:e941553. [PMID: 37846048 PMCID: PMC10591742 DOI: 10.12659/msm.941553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/22/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Cardiocerebral vascular events (CVCs) are significant complications in patients undergoing hemodialysis (HD). Given the increased morbidity and mortality associated with CVCs in this population, understanding the factors influencing CVC occurrence over time is crucial. This study aimed to investigate these time-dependent factors in HD patients. MATERIAL AND METHODS A total of 228 HD patients from 2 dialysis centers, with at least 3 months of treatment between 2017 and 2021, were included. Annual clinical data were collected, and patients were monitored until CVC development. Kaplan-Meier analysis and a time-dependent Cox regression model were used for data analysis. RESULTS The mean age of 228 patients was 55.0±15.0 years, and 64.76% were male. For 5 years of monitoring, the mean follow-up interval was 3.1±1.0 years for patients to develop CVCs. The 1-year, 3-year, and 5-year CVC-free rates were 97.47%, 81.31%, and 70.71%, respectively. Time-dependent Cox regression revealed that C-reactive protein was an independent time-dependent risk factor in HD patients and blood flow rate was an independent time-dependent protective factor. The male subgroup and non-diabetic subgroup had these same results. The following were was the independent time-dependent risk factors: white blood cell count for the female subgroup; blood flow rate for the non-elderly subgroup; and C-reactive protein for the diabetic subgroup. None were risk factors for the elderly subgroup. CONCLUSIONS It took an average of 3.1±1.0 years for patients with HD to develop CVCs. C-reactive protein and blood flow rate emerged as key time-dependent influencing factors for CVCs in this population.
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Affiliation(s)
- Haowen Zhong
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Mengbi Zhang
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Xiaoyan Su
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Yuqin Qin
- KingPoint Data Technology Co., Ltd., Guangzhou, Guangdong, PR China
| | - Yanhong Lai
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Jianhua Chen
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Linqing Chen
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Aiqin Cao
- Department of Nephrology, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
| | - Xun Liu
- Department of Nephrology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Shaohong Li
- Department of Emergency Medicine, Dongguan Tungwah Hospital, Dongguan, Guangdong, PR China
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Kressler J, Mendez A, Betancourt L, Nash M. Salsalate Improves Postprandial Glycemic and Some Lipid Responses in Persons With Tetraplegia: A Randomized Clinical Pilot Trial With Crossover Design. Top Spinal Cord Inj Rehabil 2023; 29:1-13. [PMID: 38076289 PMCID: PMC10644859 DOI: 10.46292/sci22-00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Objectives To investigate the effects of salsalate on fasting and postprandial (PP) glycemic, lipidemic, and inflammatory responses in persons with tetraplegia. Methods This study was a randomized, double-blind, cross-over design. It was conducted at a university laboratory. Ten males aged 25 to 50 years with SCI at C5-8 levels for ≥1 year underwent 1 month of placebo and salsalate (4 g/day) treatment. Blood samples were drawn before and 4 hours after breakfast and lunch fast-food meal consumption. Results Descriptive statistics indicate that fasting and PP glucose values were reduced with salsalate (pre-post mean difference, 4 ± 5 mg/dL and 8 ± 8 mg/dL, respectively) but largely unchanged with placebo (0 ± 6 mg/dL and -0 ± 7 mg/dL, respectively). Insulin responses were generally reciprocal to glucose, however less pronounced. Fasting free fatty acids were significantly reduced with salsalate (191 ± 216 mg/dL, p = .021) but not placebo (-46 ± 116 mg/dL, p = .878). Results for triglycerides were similar (25 ± 34 mg/dL, p =.045, and 7 ± 29 mg/dL, p = .464). Fasting low-density lipoprotein (LDL) levels were higher after salsalate (-10 ± 12 mg/dL, p = .025) but not placebo (2 ± 9 mg/dL, p = .403) treatment. Inflammatory markers were largely unchanged. Conclusion In this pilot trial, descriptive values indicate that salsalate decreased fasting and PP glucose response to fast-food meal challenge at regular intervals in persons with tetraplegia. Positive effects were also seen for some lipid but not for inflammatory response markers. Given the relatively "healthy" metabolic profiles of the participants, it is possible that salsalate's effects may be greater and more consistent in people with less favorable metabolic milieus.
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Affiliation(s)
- Jochen Kressler
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, Florida
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, California
| | - Armando Mendez
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida
| | - Luisa Betancourt
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, Florida
| | - Mark Nash
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, Florida
- Department of Medicine, Miller School of Medicine, University of Miami, Miami, Florida
- Department of Neurological Surgery, Miller School of Medicine, University of Miami, Miami, Florida
- Department of Rehabilitation Medicine, Miller School of Medicine, University of Miami, Miami, Florida
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Rizo-Téllez SA, Sekheri M, Filep JG. C-reactive protein: a target for therapy to reduce inflammation. Front Immunol 2023; 14:1237729. [PMID: 37564640 PMCID: PMC10410079 DOI: 10.3389/fimmu.2023.1237729] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023] Open
Abstract
C-reactive protein (CRP) is well-recognized as a sensitive biomarker of inflammation. Association of elevations in plasma/serum CRP level with disease state has received considerable attention, even though CRP is not a specific indicator of a single disease state. Circulating CRP levels have been monitored with a varying degree of success to gauge disease severity or to predict disease progression and outcome. Elevations in CRP level have been implicated as a useful marker to identify patients at risk for cardiovascular disease and certain cancers, and to guide therapy in a context-dependent manner. Since even strong associations do not establish causality, the pathogenic role of CRP has often been over-interpreted. CRP functions as an important modulator of host defense against bacterial infection, tissue injury and autoimmunity. CRP exists in conformationally distinct forms, which exhibit distinct functional properties and help explaining the diverse, often contradictory effects attributed to CRP. In particular, dissociation of native pentameric CRP into its subunits, monomeric CRP, unmasks "hidden" pro-inflammatory activities in pentameric CRP. Here, we review recent advances in CRP targeting strategies, therapeutic lowering of circulating CRP level and development of CRP antagonists, and a conformation change inhibitor in particular. We will also discuss their therapeutic potential in mitigating the deleterious actions attributed to CRP under various pathologies, including cardiovascular, pulmonary and autoimmune diseases and cancer.
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Affiliation(s)
- Salma A. Rizo-Téllez
- Department of Pathology and Cell Biology, University of Montreal, Montreal, QC, Canada
- Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
| | - Meriem Sekheri
- Department of Pathology and Cell Biology, University of Montreal, Montreal, QC, Canada
- Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
| | - János G. Filep
- Department of Pathology and Cell Biology, University of Montreal, Montreal, QC, Canada
- Research Center, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
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5
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Amoresi RAC, Roza NAV, Mazon T. Applying CeO2 nanorods in flexible electrochemical immunosensor to detect C-reactive protein. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Avdeeva AS. Inflammatory markers in rheumatic diseases. RHEUMATOLOGY SCIENCE AND PRACTICE 2022. [DOI: 10.47360/1995-4484-2022-561-569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Immune-mediated rheumatic diseases (IMRDs) are a broad group of pathological conditions based on impaired immunological tolerance to one’s own tissues leading to inflammation and irreversible organ damage. Laboratory diagnosis of IMRDs includes a wide range of biomarkers (autoantibodies, acute phase proteins, cytokines, markers of endothelial damage, components of the complement system, immunoglobulins, cryoglobulins, lymphocyte subpopulations, indicators of bone metabolism, apoptosis markers, genetic markers, etc). One of the leading aspects of laboratory diagnosis of IMRDs is the study of the level of inflammation markers in the blood (erythrocyte sedimentation rate, C-reactive protein (CRP), serum amyloid protein (CAA), ferritin, procalcitonin, apolipoprotein AI, calprotectin, etc). The analysis of inflammation markers makes it possible to assess the disease activity, the nature of the progression and the prognosis of the outcomes of a chronic inflammatory process, as well as the effectiveness of the therapy. The review presents the latest data on the role of the most frequently studied inflammatory markers such as CRP, CAA and ferritin.
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Gao D, Hua R, Jiesisibieke D, Ma Y, Li C, Wu S, Ma Q, Xie W. C-reactive protein and coronary atheroma regression following statin therapy: A meta-regression of randomized controlled trials. Front Cardiovasc Med 2022; 9:989527. [PMID: 36440015 PMCID: PMC9691666 DOI: 10.3389/fcvm.2022.989527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/24/2022] [Indexed: 10/11/2023] Open
Abstract
OBJECTIVE Several clinical trials have indicated that statins stabilize and reverse atherosclerotic plaque. However, different studies have provided inconsistent findings regarding mechanisms and influencing factors of plaque regression under statin therapy. Apart from lipid-lowering effect, statins have pleiotropic effects including anti inflammation in humans. In this study, meta-analysis and meta-regression were used to determine the effects of statin medications on coronary plaque volume. Meanwhile, to assess whether statins promote plaque regression effect was related to their anti-inflammatory ability, the impact of CRP/hsCRP reduction during statin therapy on plaque regression was investigated. METHODS Up to June 15, 2022, a systematic PubMed, EMBASE, and Cochrane search was performed for randomized controlled trials that assessed treatment effect using total atheroma volume (TAV), percent atheroma volume (PAV), or plaque volume (PV). Only CRP/hsCRP and LDL-C values reported before and after treatment were considered. RESULTS 12 studies (2,812 patients with heart and/or vascular disease) fulfilled the inclusion criteria and were included in the systematic review. A meta-analysis of 15 statin-treated arms reported a significant reduction in change of TAV/PV [standardized mean difference (SMD): -0.27, 95% confidence intervals (-CI): -0.42, -0.12, p < 0.001], compared with the control arms. Another meta-analysis of 7 trials also found that patients in the intervention group had a significant reduction in change of PAV (SMD: -0.16, 95% CI: -0.29, -0.03, p = 0.019), compared with those in the control group. Meta-regressionanalysis revealed that the percent change of CRP/hsCRP was significantly associated with SMD in change of TAV/PV after adjusting for percent change of LDL-C, age, gender and study duration. Meta-regression analysis showed that percent change of CRP/hsCRP statistically influenced SMD in change of PAV, when percent change of CRP/hsCRP was included separately. However, the percent change of CRP/hsCRP was not significantly associated with SMD of PAV change after adjusting for all covariates. CONCLUSION In conclusion, statin therapy is beneficial for plaque regression. Statins promote plaque regression, which might be associated to their anti-inflammatory ability.
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Affiliation(s)
- Darui Gao
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- Peking University Clinical Research Institute Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Rong Hua
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- Peking University Clinical Research Institute Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | | | - Yanjun Ma
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- Peking University Clinical Research Institute Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Chenglong Li
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- Peking University Clinical Research Institute Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Sijing Wu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Qian Ma
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wuxiang Xie
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- Peking University Clinical Research Institute Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
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8
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Tanio M. Calcium-dependent reversible coaggregation activity of C-reactive protein and M-ficolin. Mol Immunol 2022; 149:157-164. [PMID: 35841688 DOI: 10.1016/j.molimm.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/10/2022] [Accepted: 07/03/2022] [Indexed: 10/17/2022]
Abstract
C-reactive protein (CRP) and M-ficolin are the pattern recognition proteins of the innate immune system. In this report, a mixture of CRP and M-ficolin reversibly co-aggregated in a calcium-dependent manner. This coaggregation was enhanced at low pH (6.5) or low salt (35 mM NaCl) concentrations. The co-aggregate was dissolved by adding EDTA and reformed by adding calcium. The M-ficolin fibrinogen-like domain (FD1), the ligand-binding domain of M-ficolin, also showed calcium-dependent coaggregation with CRP, indicating that reversible coaggregation is caused by CRP interacting with FD1. Interestingly, adding phosphocholine (PC), the ligand of CRP, to a CRP-FD1 mixture abolished the reversible coaggregation activity. PC also inhibited the interaction between CRP and FD1. These results indicate that CRP retains PC-binding activity in the coaggregation state and that FD1 binds specifically to the PC-binding site on CRP but does not fully occupy the five PC-binding sites on a CRP pentamer as judged by SDS-PAGE analysis of precipitates. Coaggregation analysis using FD1 mutants showed that FD1 also retains ligand-binding activity in the coaggregation state and that coaggregation requires the trimeric form of FD1. It was also found that modifications to the ligand-binding site of FD1 affect coaggregation efficiency. Although the biological functions of the coaggregation activity of CRP and M-ficolin remain unresolved, the co-aggregates may function as bacteria-trapping particles with affinities for ligands of CRP and M-ficolin. In addition, coaggregation may be involved in CRP deposition in the lesions of several arterial diseases, such as atherosclerosis.
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Affiliation(s)
- Michikazu Tanio
- Research Center for Biological Products in the Next Generation, National Institute of Infectious Diseases, Musashimurayama-city, Tokyo 208-0011, Japan.
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Slevin M, Heidari N, Azamfirei L. Monomeric C-Reactive Protein: Current Perspectives for Utilization and Inclusion as a Prognostic Indicator and Therapeutic Target. Front Immunol 2022; 13:866379. [PMID: 35309334 PMCID: PMC8930844 DOI: 10.3389/fimmu.2022.866379] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/14/2022] [Indexed: 01/08/2023] Open
Abstract
Monomeric C-reactive protein (mCRP), once thought to be a figment of the imagination and whose biological activity was ascribed to its sodium azide preservative, has now pronounced itself as a critical molecule playing a direct role in mediating many of the acute and chronic aberrant pathological responses to inflammation. In this focused mini review, we describe the currently attributed pathobiological interactions of mCRP in disease, where its tissue and cellular distribution and deposition have recently been clearly characterized and linked to inflammation and other pathway-associated progression of neurological and cardiovascular complications and deleterious outcomes. and focus upon current opinions as to the diagnostic and prognostic potential of mCRP-plasma circulating protein and define the possible future therapeutics including ongoing research attempting to block CRP dissociation with small molecule inhibitors or prevention of cell surface binding directly using antibodies or modified orphan drug targeting directed towards CRP, inhibiting its cellular interactions and signaling activation. There is no doubt that understanding the full influence of the biological power of mCRP in disease development and outcome will be considered a critical parameter in future stratified treatment.
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Affiliation(s)
- Mark Slevin
- Department of Life Sciences, George Emil Palade University of Medicine, Pharmacy, Science and Technology, Targu Mures, Romania
- The Regenerative Clinic, London, United Kingdom
- The School of Life Sciences, Manchester Metropolitan University, Manchester, United Kingdom
- *Correspondence: Mark Slevin, ;
| | - Nima Heidari
- Department of Life Sciences, George Emil Palade University of Medicine, Pharmacy, Science and Technology, Targu Mures, Romania
- The Regenerative Clinic, London, United Kingdom
| | - Leonard Azamfirei
- Department of Life Sciences, George Emil Palade University of Medicine, Pharmacy, Science and Technology, Targu Mures, Romania
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10
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Zhang X, Chen X, Liang Z, Nie M, Yan Y, Zhao Q. Pioglitazone combined with atorvastatin promotes plaque stabilization in a rabbit model. Vascular 2021; 30:1205-1212. [PMID: 34470532 DOI: 10.1177/17085381211040992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE It is not yet clear whether plaque inflammation and cardiovascular events are reduced further when pioglitazone and atorvastatin are combined. Our study aimed to determine whether pioglitazone combined with atorvastatin can restrain the progression of atherosclerosis and promote plaque stabilization in a rabbit model. METHOD AND RESULT Thirty rabbits were randomly divided into an atherosclerosis group, an atorvastatin group, and an atorvastatin plus pioglitazone group. The atherosclerosis model was induced using balloon injury and feeding a high-fat diet. Plasma samples were then used to analyze glucose, triglycerides (TG), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), high-sensitivity C-reactive protein (hs-CRP), and matrix metalloproteinase-9 (MMP-9). The area percentage of atherosclerotic plaques was analyzed by hematoxylin-eosin staining. The relative reductions in TG and LDL-C and the increase in HDL-C levels were significantly greater in the combination therapy group than in the atorvastatin monotherapy group (TG: -33.60 ± 7.17% vs -24.16 ± 8.04%, p < 0.001; LDL-C: -42.89 ± 1.63% vs -37.13 ± 1.35%, p < 0.001; and HDL-C: 25.18 ± 5.53% vs 10.43 ± 6.31%, p < 0.001). The relative reductions in hs-CRP and MMP-9 levels were significantly greater in the combination therapy group than in the atorvastatin monotherapy group (-69.38 ± 1.06% vs-53.73 ± 1.92%, p < 0.001; -32.77 ± 2.49% vs -13.36 ± 1.66%, p < 0.001). The area percentage of atherosclerotic plaques was significantly smaller in the atorvastatin group (47.75%, p < 0.05) and in the atorvastatin plus pioglitazone group (22.57%, p < 0.05) than in the atherosclerosis group (84.08%, p < 0.05). CONCLUSION We can thus conclude that the combination treatment of atorvastatin and pioglitazone provided additive benefits on inflammatory parameters and lipid metabolism. Pioglitazone combined with atorvastatin can further restrain the progression of atherosclerosis and promote plaque stabilization in a rabbit model.
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Affiliation(s)
- Xuehui Zhang
- The Key Laboratory of Remodelling-related Cardiovascular Diseases, Department of Cardiology, Beijing Anzhen Hospital, Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Xue Chen
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhe Liang
- The Key Laboratory of Remodelling-related Cardiovascular Diseases, Department of Cardiology, Beijing Anzhen Hospital, Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Maoxiao Nie
- The Key Laboratory of Remodelling-related Cardiovascular Diseases, Department of Cardiology, Beijing Anzhen Hospital, Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Yunfeng Yan
- The Key Laboratory of Remodelling-related Cardiovascular Diseases, Department of Cardiology, Beijing Anzhen Hospital, Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Quanming Zhao
- The Key Laboratory of Remodelling-related Cardiovascular Diseases, Department of Cardiology, Beijing Anzhen Hospital, Affiliated to Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
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Blanco-Colio LM, Méndez-Barbero N, Pello Lázaro AM, Aceña Á, Tarín N, Cristóbal C, Martínez-Milla J, González-Lorenzo Ó, Martín-Ventura JL, Huelmos A, Gutiérrez-Landaluce C, López-Castillo M, Kallmeyer A, Cánovas E, Alonso J, López Bescós L, Egido J, Lorenzo Ó, Tuñón J. MCP-1 Predicts Recurrent Cardiovascular Events in Patients with Persistent Inflammation. J Clin Med 2021; 10:jcm10051137. [PMID: 33803115 PMCID: PMC7963189 DOI: 10.3390/jcm10051137] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/23/2021] [Accepted: 03/01/2021] [Indexed: 02/06/2023] Open
Abstract
Clinical data indicate that patients with C-reactive protein (CRP) levels higher than 2 mg per liter suffer from persistent inflammation, which is associated with high risk of cardiovascular disease (CVD). We determined whether a panel of biomarkers associated with CVD could predict recurrent events in patients with low or persistent inflammation and coronary artery disease (CAD). We followed 917 patients with CAD (median 4.59 ± 2.39 years), assessing CRP, galectin-3, monocyte chemoattractant protein-1 (MCP-1), N-terminal fragment of brain natriuretic peptide (NT-proBNP) and troponin-I plasma levels. The primary outcome was the combination of cardiovascular events (acute coronary syndrome, stroke or transient ischemic event, heart failure or death). Patients with persistent inflammation (n = 343) showed higher NT-proBNP and MCP-1 plasma levels compared to patients with CRP < 2 mg/L. Neither MCP-1 nor NT-proBNP was associated with primary outcome in patients with CRP < 2 mg/L. However, NT-proBNP and MCP-1 plasma levels were associated with increased risk of the primary outcome in patients with persistent inflammation. When patients were divided by type of event, MCP-1 was associated with an increased risk of acute ischemic events. A significant interaction between MCP-1 and persistent inflammation was found (synergy index: 6.17 (4.39–7.95)). In conclusion, MCP-1 plasma concentration is associated with recurrent cardiovascular events in patients with persistent inflammation.
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Affiliation(s)
- Luis M. Blanco-Colio
- Vascular Research Lab, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (L.M.B.-C.); (N.M.-B.); (J.L.M.-V.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Nerea Méndez-Barbero
- Vascular Research Lab, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (L.M.B.-C.); (N.M.-B.); (J.L.M.-V.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Ana María Pello Lázaro
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
| | - Álvaro Aceña
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
| | - Nieves Tarín
- Department of Cardiology, Hospital Universitario de Móstoles, 28935 Madrid, Spain;
| | - Carmen Cristóbal
- Department of Cardiology, Hospital de Fuenlabrada, 28942 Madrid, Spain; (C.C.); (C.G.-L.)
- Department of Cardiology, Rey Juan Carlos University, Alcorcón, 28933 Madrid, Spain;
| | - Juan Martínez-Milla
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
| | - Óscar González-Lorenzo
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
| | - José Luis Martín-Ventura
- Vascular Research Lab, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (L.M.B.-C.); (N.M.-B.); (J.L.M.-V.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
| | - Ana Huelmos
- Department of Cardiology, Hospital Universitario Fundación Alcorcón, 28922 Madrid, Spain;
| | | | - Marta López-Castillo
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
| | - Andrea Kallmeyer
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
| | - Ester Cánovas
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
| | - Joaquín Alonso
- Department of Cardiology, Hospital de Getafe, 28905 Madrid, Spain;
| | - Lorenzo López Bescós
- Department of Cardiology, Rey Juan Carlos University, Alcorcón, 28933 Madrid, Spain;
| | - Jesús Egido
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
- Renal, Vascular and Diabetes Research Lab, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Óscar Lorenzo
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
- Renal, Vascular and Diabetes Research Lab, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - José Tuñón
- Vascular Research Lab, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (L.M.B.-C.); (N.M.-B.); (J.L.M.-V.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Department of Cardiology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain; (A.M.P.L.); (Á.A.); (J.M.-M.); (Ó.G.-L.); (M.L.-C.); (A.K.); (E.C.)
- Department of Medicine, Autónoma University, 08193 Madrid, Spain; (J.E.); (Ó.L.)
- Correspondence:
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12
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Jimenez RV, Szalai AJ. Therapeutic Lowering of C-Reactive Protein. Front Immunol 2021; 11:619564. [PMID: 33633738 PMCID: PMC7901964 DOI: 10.3389/fimmu.2020.619564] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/15/2020] [Indexed: 01/25/2023] Open
Abstract
In the blood of healthy individuals C-reactive protein (CRP) is typically quite scarce, whereas its blood concentration can rise robustly and rapidly in response to tissue damage and inflammation associated with trauma and infectious and non-infectious diseases. Consequently, CRP plasma or serum levels are routinely monitored in inpatients to gauge the severity of their initial illness and injury and their subsequent response to therapy and return to health. Its clinical utility as a faithful barometer of inflammation notwithstanding, it is often wrongly concluded that the biological actions of CRP (whatever they may be) are manifested only when blood CRP is elevated. In fact over the last decades, studies done in humans and animals (e.g. human CRP transgenic and CRP knockout mice) have shown that CRP is an important mediator of biological activities even in the absence of significant blood elevation, i.e. even at baseline levels. In this review we briefly recap the history of CRP, including a description of its discovery, early clinical use, and biosynthesis at baseline and during the acute phase response. Next we overview evidence that we and others have generated using animal models of arthritis, neointimal hyperplasia, and acute kidney injury that baseline CRP exerts important biological effects. In closing we discuss the possibility that therapeutic lowering of baseline CRP might be a useful way to treat certain diseases, including cancer.
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Affiliation(s)
- Rachel V Jimenez
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, United States
| | - Alexander J Szalai
- Division of Clinical Immunology & Rheumatology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
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13
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Pathak A, Singh SK, Thewke DP, Agrawal A. Conformationally Altered C-Reactive Protein Capable of Binding to Atherogenic Lipoproteins Reduces Atherosclerosis. Front Immunol 2020; 11:1780. [PMID: 32849641 PMCID: PMC7431523 DOI: 10.3389/fimmu.2020.01780] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/03/2020] [Indexed: 12/27/2022] Open
Abstract
The aim of this study was to test the hypothesis that C-reactive protein (CRP) protects against the development of atherosclerosis and that a conformational alteration of wild-type CRP is necessary for CRP to do so. Atherosclerosis is an inflammatory cardiovascular disease and CRP is a plasma protein produced by the liver in inflammatory states. The co-localization of CRP and low-density lipoproteins (LDL) at atherosclerotic lesions suggests a possible role of CRP in atherosclerosis. CRP binds to phosphocholine-containing molecules but does not interact with LDL unless the phosphocholine groups in LDL are exposed. However, CRP can bind to LDL, without the exposure of phosphocholine groups, if the native conformation of CRP is altered. Previously, we reported a CRP mutant, F66A/T76Y/E81A, generated by site-directed mutagenesis, that did not bind to phosphocholine. Unexpectedly, this mutant CRP, without any more conformational alteration, was found to bind to atherogenic LDL. We hypothesized that this CRP mutant, unlike wild-type CRP, could be anti-atherosclerotic and, accordingly, the effects of mutant CRP on atherosclerosis in atherosclerosis-prone LDL receptor-deficient mice were evaluated. Administration of mutant CRP into mice every other day for a few weeks slowed the progression of atherosclerosis. The size of atherosclerotic lesions in the aorta of mice treated with mutant CRP for 9 weeks was ~40% smaller than the lesions in the aorta of untreated mice. Thus, mutant CRP conferred protection against atherosclerosis, providing a proof of concept that a local inflammation-induced structural change in wild-type CRP is a prerequisite for CRP to control the development of atherosclerosis.
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Affiliation(s)
- Asmita Pathak
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Sanjay K Singh
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Douglas P Thewke
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Alok Agrawal
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
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14
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Fu Y, Wu Y, Liu E. C-reactive protein and cardiovascular disease: From animal studies to the clinic (Review). Exp Ther Med 2020; 20:1211-1219. [PMID: 32765664 PMCID: PMC7388508 DOI: 10.3892/etm.2020.8840] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 05/05/2020] [Indexed: 12/22/2022] Open
Abstract
C-reactive protein (CRP) and cardiovascular disease (CVD) have long been important research topics. CRP is an acute phase protein, while CVD is an inflammatory condition. The association between CRP and CVD remains controversial and has been attracting increasing attention. Traditionally, the main marker of CVD is considered to be low-density lipoprotein cholesterol. However, due to its unique characteristics, CRP may represent a novel marker or a new therapeutic target for CVD. Clinical studies have demonstrated that CRP is a predictor of CVD, but whether it is directly involved in the development and progression of CVD has yet to be fully elucidated. Recent clinical studies have demonstrated that lowering plasma CRP levels may reduce the incidence of CVD. The aim of the present review was to investigate the association between CRP and CVD, particularly atherosclerosis, from laboratory animal studies to clinical research.
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Affiliation(s)
- Yu Fu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
| | - Yi Wu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
| | - Enqi Liu
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, P.R. China
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15
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Asada Y, Yamashita A, Sato Y, Hatakeyama K. Pathophysiology of atherothrombosis: Mechanisms of thrombus formation on disrupted atherosclerotic plaques. Pathol Int 2020; 70:309-322. [PMID: 32166823 PMCID: PMC7317428 DOI: 10.1111/pin.12921] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 02/26/2020] [Indexed: 12/14/2022]
Abstract
Atherothrombosis is a leading cause of cardiovascular mortality and morbidity worldwide. The underlying mechanisms of atherothrombosis comprise plaque disruption and subsequent thrombus formation. Arterial thrombi are thought to mainly comprise aggregated platelets as a result of high blood velocity. However, thrombi that develop on disrupted plaques comprise not only aggregated platelets, but also large amounts of fibrin, because plaques contain large amount of tissue factor that activate the coagulation cascade. Since not all thrombi grow large enough to occlude the vascular lumen, the propagation of thrombi is also critical in the onset of adverse vascular events. Various factors such as vascular wall thrombogenicity, local hemorheology, systemic thrombogenicity and fibrinolytic activity modulate thrombus formation and propagation. Although the activation mechanisms of platelets and the coagulation cascade have been intensively investigated, the underlying mechanisms of occlusive thrombus formation on disrupted plaques remain obscure. Pathological findings derived from humans and animal models of human atherothrombosis have uncovered pathophysiological processes during thrombus formation and propagation after plaque disruption, and novel factors have been identified that modulate the activation of platelets and the coagulation cascade. These findings have also provided insights into the development of novel drugs for atherothrombosis.
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Affiliation(s)
- Yujiro Asada
- Pathophysiology Section, Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Atsushi Yamashita
- Pathophysiology Section, Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Yuichiro Sato
- Department of Diagnostic Pathology, University of Miyazaki Hospital, University of Miyazaki, Miyazaki, Japan
| | - Kinta Hatakeyama
- Department of Diagnostic Pathology, Nara Medical University, Nara, Japan
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16
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Choi B, Shin MK, Kim EY, Park JE, Lee H, Kim SW, Song JK, Chang EJ. Elevated Neuropeptide Y in Endothelial Dysfunction Promotes Macrophage Infiltration and Smooth Muscle Foam Cell Formation. Front Immunol 2019; 10:1701. [PMID: 31379881 PMCID: PMC6657015 DOI: 10.3389/fimmu.2019.01701] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 07/08/2019] [Indexed: 12/19/2022] Open
Abstract
Endothelial dysfunction has been linked to vascular inflammation and foam cell formation but the underlying mechanisms still remain unclear. We sought to define the factors inducing inflammation and smooth muscle foam cell formation under endothelial dysfunction using endothelial nitric oxide synthase (eNOS)-deficient mice. Vascular smooth muscle cells (VSMCs) from eNOS-deficient mice displayed increased expression of macrophage-related genes and elevated lipid uptake. Neuropeptide Y (NPY) was upregulated in the aorta from the eNOS-deficient mice and promoted macrophage chemotaxis toward VSMCs while enhancing the activity of matrix metalloproteinase-3. Notably, NPY induced lipid uptake in VSMCs, facilitating smooth muscle foam cell formation, in association with enhanced expression of genes related to modified low-density lipoprotein uptake and macrophages. NPY was augmented by inflammatory pentraxin 3 (PTX3) in VSMCs. PTX3 enhanced macrophage migratory capacity through the NPY/neuropeptide Y receptor axis and this effect was attenuated by pharmacological inhibition with a receptor-specific antagonist. These observations suggest that endothelial dysfunction leads to the elevation of NPY that amplifies vascular inflammation by increasing inflammatory cell chemotaxis and triggers smooth muscle foam cell formation.
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Affiliation(s)
- Bongkun Choi
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Min-Kyung Shin
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Eun-Young Kim
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ji-Eun Park
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Halim Lee
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Seong Who Kim
- Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae-Kwan Song
- Division of Cardiology, Asan Medical Center, Research Institute for Valvular Heart Disease University of Ulsan College of Medicine, Seoul, South Korea
| | - Eun-Ju Chang
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.,Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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17
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Singh SK, Agrawal A. Functionality of C-Reactive Protein for Atheroprotection. Front Immunol 2019; 10:1655. [PMID: 31379851 PMCID: PMC6646712 DOI: 10.3389/fimmu.2019.01655] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/03/2019] [Indexed: 12/14/2022] Open
Abstract
C-reactive protein (CRP) is a pentameric molecule made up of identical monomers. CRP can be seen in three different forms: native pentameric CRP (native CRP), non-native pentameric CRP (non-native CRP), and monomeric CRP (mCRP). Both native and non-native CRP execute ligand-recognition functions for host defense. The fate of any pentameric CRP after binding to a ligand is dissociation into ligand-bound mCRP. If ligand-bound mCRP is proinflammatory, like free mCRP has been shown to be in vitro, then mCRP along with the bound ligand must be cleared from the site of inflammation. Once pentameric CRP is bound to atherogenic low-density lipoprotein (LDL), it reduces both formation of foam cells and proinflammatory effects of atherogenic LDL. A CRP mutant, that is non-native CRP, which readily binds to atherogenic LDL, has been found to be atheroprotective in a murine model of atherosclerosis. Thus, unlike statins, a drug that can lower only cholesterol levels but not CRP levels should be developed. Since non-native CRP has been shown to bind to all kinds of malformed proteins in general, it is possible that non-native CRP would be protective against all inflammatory states in which host proteins become pathogenic. If it is proven through experimentation employing transgenic mice that non-native CRP is beneficial for the host, then using a small-molecule compound to target CRP with the goal of changing the conformation of endogenous native CRP would be preferred over using recombinant non-native CRP as a biologic to treat diseases caused by pathogenic proteins such as oxidized LDL.
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Affiliation(s)
| | - Alok Agrawal
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
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18
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Inamura S, Ito H, Shinagawa T, Tsutsumiuchi M, Taga M, Tsuchiyama K, Kobayashi M, Yokoyama O. Serum C‐reactive protein level is not associated with prostatic inflammation but with overactive detrusor in patients with benign prostatic hyperplasia. Neurourol Urodyn 2019; 38:1728-1736. [DOI: 10.1002/nau.24051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/24/2019] [Accepted: 05/14/2019] [Indexed: 11/12/2022]
Affiliation(s)
- So Inamura
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
- Department of Tumor Pathology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Hideaki Ito
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Tomochika Shinagawa
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
- Department of Tumor Pathology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Manami Tsutsumiuchi
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
- Department of Tumor Pathology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Minekatsu Taga
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
- Department of Tumor Pathology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Katsuki Tsuchiyama
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Motohiro Kobayashi
- Department of Tumor Pathology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
| | - Osamu Yokoyama
- Department of Urology, Faculty of Medical SciencesUniversity of FukuiEiheiji Japan
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19
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Xin F, Fu L, Liu H, Xu Y, Wei T, Chen M. Exploring metabolic and inflammatory abnormalities in rheumatoid arthritis patients developing stroke disease: a case-control study using electronic medical record data in northern China. Clin Rheumatol 2019; 38:1401-1411. [PMID: 30729371 DOI: 10.1007/s10067-019-04440-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/24/2018] [Accepted: 01/14/2019] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Intend to investigate the roles of serum lipids, inflammatory markers, and serological status in rheumatoid arthritis and stroke patients by using case-control study. MATERIALS AND METHODS Clinical data were retrieved from the electronic medical record of the First Affiliated Hospital of China Medical University during January 2011 to March 2018. The obtained data were categorized into case groups and three control groups, in the ratios of 1:2, respectively, with all matching age and gender. Multinomial logistic regression analysis and restricted cubic spline were conducted examining the associations between serum lipids, inflammatory markers, serological status, and the risk of stroke among RA patients. RESULTS The present studies included 1057 study subjects. The elevated ESR, LDL-C levels, and much higher CRP levels ≥ 230 mg/L were independent risk factors for RA patients in developing stroke. Furthermore, we found that ESR and LDL-C levels could exhibit a linear association with the risk of comorbid stroke while CRP level had a nonlinearity association with stroke risk among RA patients. CONCLUSIONS A close monitoring is required for RA patients with dyslipidemia and elevated inflammatory markers, and the primary stroke preventive strategies should be directed against these risk factors.
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Affiliation(s)
- Fangran Xin
- Department of Clinical Epidemiology and Evidence-based medicine, The First Affiliated Hospital of China Medical University, No.155, Nan Jing Bei Street, Shenyang, 110001, Liaoning Province, China
| | - Lingyu Fu
- Department of Clinical Epidemiology and Evidence-based medicine, The First Affiliated Hospital of China Medical University, No.155, Nan Jing Bei Street, Shenyang, 110001, Liaoning Province, China.
- Department of Medical Record Management Center, The First Affiliated Hospital, China Medical University, Shenyang, China.
| | - Haina Liu
- Department of Rheumatology, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yunwei Xu
- Department of Medical Record Management Center, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Tingting Wei
- Department of Clinical Epidemiology and Evidence-based medicine, The First Affiliated Hospital of China Medical University, No.155, Nan Jing Bei Street, Shenyang, 110001, Liaoning Province, China
| | - Meng Chen
- Department of Clinical Epidemiology and Evidence-based medicine, The First Affiliated Hospital of China Medical University, No.155, Nan Jing Bei Street, Shenyang, 110001, Liaoning Province, China
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20
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Zheng T, Zhou Q, Chen Z, Wang Q. Correlation between expression levels of IL-37, GM-CSF, and CRP in peripheral blood and atherosclerosis and plaque stability. EUR J INFLAMM 2019. [DOI: 10.1177/2058739219844068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The study aimed to study the correlation between expression levels of interleukin-37 (IL-37), granulocyte macrophage colony-stimulating factor (GM-CSF), and C-reactive protein (CRP) in peripheral blood and the status of atherosclerosis (AS) and plaque stability and to confirm the clinical significance of these inflammatory factors in the pathogenesis of AS. A total of 64 AS patients (case group) were selected and divided into unstable plaque group (group A, 28 cases) and stable plaque group (group B, 36 cases) according to the color ultrasonography results of arterial vessels. At the same time, 30 healthy subjects were classified into the control group. General information of the enrolled subjects was collected, including levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), CRP, and homocysteine (Hcy). The expression levels of IL-37 and GM-CSF in the serum of peripheral blood samples collected from these subjects were measured by enzyme-linked immunosorbent assay (ELISA). There was no significant difference between the case group and the control group in the levels of TC, TG, HDL, and LDL ( P > 0.05). However, the expression level of Hcy in the case group was significantly higher than that in the control group ( P < 0.05). Compared with the control group, the expression levels of IL-37, GM-CSF, and CRP in the case group were significantly increased ( P < 0.05). In addition, compared with group B, the expression level of GM-CSF in group A was significantly increased ( P < 0.05), while no significant difference was detected between group A and group B in the expression levels of IL-37 and CRP ( P > 0.05). In conclusion, inflammatory factors IL-37, GM-CSF, CRP, and Hcy were all involved in the pathogenesis of AS, and the increased levels of GM-CSF were closely related to the progress of unstable plaques. These results may aid the early diagnosis/treatment of AS.
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Affiliation(s)
- Tao Zheng
- Cardiothoracic and Vascular Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Qingyun Zhou
- Cardiothoracic and Vascular Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Zhe Chen
- Cardiothoracic and Vascular Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Qinning Wang
- Cardiothoracic and Vascular Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
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21
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Magnadóttir B, Hayes P, Gísladóttir B, Bragason BÞ, Hristova M, Nicholas AP, Guðmundsdóttir S, Lange S. Pentraxins CRP-I and CRP-II are post-translationally deiminated and differ in tissue specificity in cod (Gadus morhua L.) ontogeny. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 87:1-11. [PMID: 29777721 DOI: 10.1016/j.dci.2018.05.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Pentraxins are fluid phase pattern recognition molecules that form an important part of the innate immune defence and are conserved between fish and human. In Atlantic cod (Gadus morhua L.), two pentraxin-like proteins have been described, CRP-I and CRP-II. Here we show for the first time that these two CRP forms are post-translationally deiminated (an irreversible conversion of arginine to citrulline) and differ with respect to tissue specific localisation in cod ontogeny from 3 to 84 days post hatching. While both forms are expressed in liver, albeit at temporally differing levels, CRP-I shows a strong association with nervous tissue while CRP-II is strongly associated to mucosal tissues of gut and skin. This indicates differing roles for the two pentraxin types in immune responses and tissue remodelling, also elucidating novel roles for CRP-I in the nervous system. The presence of deimination positive bands for cod CRPs varied somewhat between mucus and serum, possibly facilitating CRP protein moonlighting, allowing the same protein to exhibit a range of biological functions and thus meeting different functional requirements in different tissues. The presented findings may further current understanding of the diverse roles of pentraxins in teleost immune defences and tissue remodelling, as well as in various human pathologies, including autoimmune diseases, amyloidosis and cancer.
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Affiliation(s)
- Bergljót Magnadóttir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland.
| | - Polly Hayes
- Department of Biomedical Sciences, University of Westminster, London W1W 6UW, UK.
| | - Berglind Gísladóttir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland.
| | - Birkir Þór Bragason
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland.
| | - Mariya Hristova
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK.
| | - Anthony P Nicholas
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Sigríður Guðmundsdóttir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland.
| | - Sigrun Lange
- Tissue Architecture and Regeneration Research Group, Department of Biomedical Sciences, University of Westminster, London W1W 6UW, UK.
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22
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Li L, Liu QW, Li Z, Wang L, Wang JH, Song L, Li B. The utility of high-sensitivity C-reactive protein levels in patients with moderate coronary lesions and gray-zone fractional flow reserve. Anatol J Cardiol 2018; 20:143-151. [PMID: 30109863 PMCID: PMC6237940 DOI: 10.14744/anatoljcardiol.2018.80148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2018] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE It remains controversial whether patients with fractional flow reserve (FFR) values of 0.75-0.80 (gray-zone) should be treated with percutaneous coronary intervention (PCI). This study aimed to evaluate the prediction of high-sensitivity C-reactive protein (hs-CRP) levels to guide treatment selection in gray-zone patients. METHODS This prospective interventional trial was conducted between January 2015 and March 2016. A total of 785 patients with stable angina and single-vessel stenosis with moderate coronary lesions were admitted to hospital in this period. After measurement of hs-CRP levels, coronary angiography, and FFR, gray-zone patients (n=308) were included in the study and were divided into four groups on the basis of a cutoff hs-CRP level of 3 mg/L and then on the basis of whether they underwent PCI or not. Patients in groups I (≥3 mg/L, n=70) and III (<3 mg/L, n=84) underwent PCI, whereas those in groups II (≥3 mg/L, n=70) and IV (<3 mg/L, n=84) were administered only drugs. Major adverse clinical events (MACEs) included cardiac death, nonfatal myocardial infarction (MI), target vessel revascularization (TVR), and PCI or coronary artery bypass grafting (CABG). These parameters were also evaluated during follow-up. RESULTS The total Kaplan-Meier curves showed macrodistribution differences among the four groups (p<0.05). There was a significantly increased MACE incidence in group II compared with group I or IV (p=0.039 or 0.006, respectively), and an increased incidence in group I compared with group III (p=0.028). However, there were no differences in MACE incidence between groups III and IV (p=0.095) despite the fact that these patients received different treatments. CONCLUSION Among FFR gray-zone patients, hs-CRP level was a predictor of MACE and risk stratification could guide treatment selection. Increased hs-CRP levels (≥3 mg/L) are an indication for urgent PCI whereas normal levels (<3 mg/L) are an indication for delayed PCI treatment. Patients with identical FFR values could require different treatment.
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Affiliation(s)
| | | | | | | | | | | | - Bin Li
- Department of Surgery Center, Shandong Provincial Hospital Affiliated to Shandong University; Jinan-China.
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23
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Figueira L, González JC. Effect of resveratrol on seric vascular endothelial growth factor concentrations during atherosclerosis. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2018; 30:209-216. [PMID: 30253861 DOI: 10.1016/j.arteri.2018.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 04/08/2018] [Accepted: 04/13/2018] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Although it is known that resveratrol has anti-inflammatory and anti-atherogenic actions, its effect on vascular endothelial growth factor (VEGF) in atherosclerosis is unknown. OBJECTIVE To evaluate the effect of resveratrol on serum concentrations of VEGF during the progression and evolution of atherosclerosis, as well as and its evolution over time in rabbits fed with a cholesterol diet. MATERIALS AND METHODS A total of 48 New Zealand white male rabbits were randomly divided into four groups of 12 rabbits: group1 (control): standard diet (commercial rabbit food); group2: cholesterol diet (0.5% cholesterol); group3 (control resveratrol): standard diet (commercial rabbit food) and resveratrol (2mg/Kg); group4: cholesterol diet (0.5% cholesterol) and resveratrol (2mg/Kg), for 12weeks. Blood samples of overnight-fasted rabbits were collected at baseline and the sixth and twelfth weeks, and the lipid profile, VEGF, and C-reactive protein (CRP) levels were determined. Half of the animals were sacrificed on the sixth or twelfth week, and the aorta was dissected for histological studies. RESULTS VEGF and CRP levels were significantly higher in groups2 and 4 than in groups1 and 3, respectively, from the 6th week (p<0.001). VEGF and CRP were significantly lower in group4 than in group2 on 12th week (p<0.004). Supplementation of resveratrol reduced the formation of atherosclerotic lesions. CONCLUSIONS Serum VEGF and CRP levels are early markers of atherosclerosis. Oral supplementation of resveratrol exerts anti-inflammatory and anti-atherosclerotic effects, decreasing serum concentrations of VEGF and CRP and the formation and evolution of atherosclerotic lesions.
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Affiliation(s)
- Leticia Figueira
- Escuela de Bioanálisis, Laboratorio de Investigación y Postgrado de la Escuela de Bioanálisis (LIPEB), Facultad de Ciencias de la Salud, Universidad de Carabobo, Naguanagua, Carabobo, Venezuela.
| | - Julio César González
- Escuela de Bioanálisis, Laboratorio de Investigación y Postgrado de la Escuela de Bioanálisis (LIPEB), Facultad de Ciencias de la Salud, Universidad de Carabobo, Naguanagua, Carabobo, Venezuela; Laboratorio Clínico Julio César González, Valencia, Carabobo, Venezuela
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24
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Asada Y, Yamashita A, Sato Y, Hatakeyama K. Thrombus Formation and Propagation in the Onset of Cardiovascular Events. J Atheroscler Thromb 2018; 25:653-664. [PMID: 29887539 PMCID: PMC6099067 DOI: 10.5551/jat.rv17022] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Ischemic cardiovascular disease is a major cause of morbidity and mortality worldwide and thrombus formation on disrupted atherosclerotic plaques is considered to trigger its onset. Although the activation of platelets and coagulation pathways has been investigated intensively, the mechanisms of thrombus formation on disrupted plaques have not been understood in detail. Platelets are thought to play a central role in the formation of arterial thrombus because of rapid flow conditions; however, thrombus that develops on disrupted plaques consistently includes large amounts of fibrin in addition to aggregated platelets. While, thrombus does not always become large enough to completely occlude the vascular lumen, indicating that the propagation of thrombus is also critical for the onset of cardiovascular events. Various factors, such as vascular wall thrombogenicity, altered blood flow and imbalanced blood hemostasis, modulate thrombus formation and propagation on disrupted plaques. Pathological findings derived from humans and experimental animal models of atherothrombosis have identified important factors that affect thrombus formation and propagation, namely platelets, extrinsic and intrinsic coagulation factors, proinflammatory factors, plaque hypoxia and blood flow alteration. These findings might provide insight into the mechanisms of thrombus formation and propagation on disrupted plaques that lead to the onset of cardiovascular events.
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Affiliation(s)
- Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki
| | - Yuichiro Sato
- Department of Diagnostic Pathology, University of Miyazaki Hospital, University of Miyazaki
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25
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Liu C, Cai H, Jia J, Cao T, Xu C, Liu C. Research on highly sensitive optomagnetic sensor for rapid detection of inflammation. Technol Health Care 2017; 25:151-156. [DOI: 10.3233/thc-171317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Singh SK, Thirumalai A, Pathak A, Ngwa DN, Agrawal A. Functional Transformation of C-reactive Protein by Hydrogen Peroxide. J Biol Chem 2017; 292:3129-3136. [PMID: 28096464 PMCID: PMC5336149 DOI: 10.1074/jbc.m116.773176] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 01/11/2017] [Indexed: 12/21/2022] Open
Abstract
C-reactive protein (CRP) is present at sites of inflammation including amyloid plaques, atherosclerotic lesions, and arthritic joints. CRP, in its native pentameric structural conformation, binds to cells and molecules that have exposed phosphocholine (PCh) groups. CRP, in its non-native pentameric structural conformation, binds to a variety of deposited, denatured, and aggregated proteins, in addition to binding to PCh-containing substances. In this study, we investigated the effects of H2O2, a prototypical reactive oxygen species that is also present at sites of inflammation, on the ligand recognition function of CRP. Controlled H2O2 treatment of native CRP did not monomerize CRP and did not affect the PCh binding activity of CRP. In solid phase ELISA-based ligand binding assays, purified pentameric H2O2-treated CRP bound to a number of immobilized proteins including oxidized LDL, IgG, amyloid β peptide 1-42, C4b-binding protein, and factor H, in a CRP concentration- and ligand concentration-dependent manner. Using oxidized LDL as a representative protein ligand for H2O2-treated CRP, we found that the binding occurred in a Ca2+-independent manner and did not involve the PCh-binding site of CRP. We conclude that H2O2 is a biological modifier of the structure and ligand recognition function of CRP. Overall, the data suggest that the ligand recognition function of CRP is dependent on the presence of an inflammatory microenvironment. We hypothesize that one of the functions of CRP at sites of inflammation is to sense the inflammatory microenvironment, change its own structure in response but remain pentameric, and then bind to pathogenic proteins deposited at those sites.
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Affiliation(s)
- Sanjay K Singh
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee 37614
| | - Avinash Thirumalai
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee 37614
| | - Asmita Pathak
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee 37614
| | - Donald N Ngwa
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee 37614
| | - Alok Agrawal
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee 37614.
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27
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Bonaventura A, Mach F, Roth A, Lenglet S, Burger F, Brandt KJ, Pende A, Bertolotto M, Spinella G, Pane B, Palombo D, Dallegri F, Cea M, Vuilleumier N, Montecucco F, Carbone F. Intraplaque Expression of C-Reactive Protein Predicts Cardiovascular Events in Patients with Severe Atherosclerotic Carotid Artery Stenosis. Mediators Inflamm 2016; 2016:9153673. [PMID: 27738391 PMCID: PMC5050375 DOI: 10.1155/2016/9153673] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 08/22/2016] [Indexed: 01/15/2023] Open
Abstract
Serum c-reactive protein (CRP) was suggested for the assessment of intermediate cardiovascular (CV) risk. Here, systemic or intraplaque CRP levels were investigated as predictors of major adverse cardiovascular events (MACEs) in patients with severe carotid stenosis. CRP levels were assessed in the serum and within different portions (upstream and downstream) of carotid plaques of 217 patients undergoing endarterectomy. The association between CRP and intraplaque lipids, collagen, neutrophils, smooth muscle cells (SMC), and macrophage subsets was determined. No correlation between serum CRP and intraplaque biomarkers was observed. In upstream portions, CRP content was directly correlated with intraplaque neutrophils, total macrophages, and M1 macrophages and inversely correlated with SMC content. In downstream portions, intraplaque CRP correlated with M1 and M2 macrophages. According to the cut-off point (CRP > 2.9%) identified by ROC analysis in upstream portions, Kaplan-Meier analysis showed that patients with high CRP levels had a greater rate of MACEs. This risk of MACEs increased independently of age, male gender, serum CRP, and statin use. In conclusion, in patients with severe carotid artery stenosis, high CRP levels within upstream portions of carotid plaques directly and positively correlate with intraplaque inflammatory cells and predict MACEs at an 18-month follow-up period.
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Affiliation(s)
- Aldo Bonaventura
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132 Genoa, Italy
| | - François Mach
- Division of Cardiology, Foundation for Medical Researches, Department of Medical Specialties, University of Geneva, 64 Avenue de la Roseraie, 1211 Geneva, Switzerland
| | - Aline Roth
- Division of Cardiology, Foundation for Medical Researches, Department of Medical Specialties, University of Geneva, 64 Avenue de la Roseraie, 1211 Geneva, Switzerland
| | - Sébastien Lenglet
- Unit of Toxicology, University Centre of Legal Medicine, Geneva-Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland
| | - Fabienne Burger
- Division of Cardiology, Foundation for Medical Researches, Department of Medical Specialties, University of Geneva, 64 Avenue de la Roseraie, 1211 Geneva, Switzerland
| | - Karim J. Brandt
- Division of Cardiology, Foundation for Medical Researches, Department of Medical Specialties, University of Geneva, 64 Avenue de la Roseraie, 1211 Geneva, Switzerland
| | - Aldo Pende
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132 Genoa, Italy
- IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
| | - Maria Bertolotto
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132 Genoa, Italy
| | - Giovanni Spinella
- Vascular and Endovascular Surgery Unit, Department of Surgery, IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
| | - Bianca Pane
- Vascular and Endovascular Surgery Unit, Department of Surgery, IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
| | - Domenico Palombo
- Vascular and Endovascular Surgery Unit, Department of Surgery, IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
| | - Franco Dallegri
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132 Genoa, Italy
- IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
| | - Michele Cea
- Clinic of Hematology, Department of Internal Medicine, University of Genoa, IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
| | - Nicolas Vuilleumier
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, 4 Rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132 Genoa, Italy
- IRCCS AOU San Martino-IST, 10 Largo Benzi, 16132 Genoa, Italy
- Centre of Excellence for Biomedical Research (CEBR), University of Genoa, 9 Viale Benedetto XV, 16132 Genoa, Italy
| | - Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132 Genoa, Italy
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28
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Azab N, Abdel-Aziz T, Ahmed A, El-deen I. Correlation of serum resistin level with insulin resistance and severity of retinopathy in type 2 diabetes mellitus. JOURNAL OF SAUDI CHEMICAL SOCIETY 2016. [DOI: 10.1016/j.jscs.2012.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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29
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Kazimierczak B, Pijanowska D, Baraniecka A, Dawgul M, Kruk J, Torbicz W. Immunosensors for human cardiac troponins and CRP, in particular amperometric cTnI immunosensor. Biocybern Biomed Eng 2016. [DOI: 10.1016/j.bbe.2015.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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30
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Local and systemic responses following intravitreous injection of AAV2-encoded modified Volvox channelrhodopsin-1 in a genetically blind rat model. Gene Ther 2015; 23:158-66. [PMID: 26440056 DOI: 10.1038/gt.2015.99] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/11/2015] [Accepted: 09/04/2015] [Indexed: 01/22/2023]
Abstract
We previously designed a modified channelrhodopsin-1 (mVChR1) protein chimera with a broader action than that of Chlamydomonas channelrhodopsin-2 and reported that its transduction into retinal ganglion cells can restore visual function in genetically blind, dystrophic Royal College of Surgeons (RCS) rats, with photostimuli ranging from 486 to 640 nm. In the current study, we sought to investigate the safety and influence of mVChR1 transgene expression. Adeno-associated virus type 2 encoding mVChR1 was administered by intravitreous injection into dystrophic RCS rats. Reverse-transcription PCR was used to monitor virus and transgene dissemination and the results demonstrated that their expression was restricted specifically within the eye tissues, and not in non-target organs. Moreover, examination of the blood, plasma and serum revealed that no excess immunoreactivity was present, as determined using standard clinical hematological parameters. Serum antibodies targeting the recombinant adeno-associated virus (rAAV) capsid increased after the injection; however, no increase in mVChR1 antibody was detected during the observation period. In addition, retinal histological examination showed no signs of inflammation in rAAV-injected rats. In conclusion, our results demonstrate that mVChR1 can be exogenously expressed without harmful immunological reactions in vivo. These findings will aid in studies of AAV gene transfer to restore vision in late-stage retinitis pigmentosa.
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31
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Wang Y, Bai L, Lin Y, Chen Y, Guan H, Zhu N, Li Y, Gao S, Sun L, Zhao S, Fan J, Liu E. Combined use of probucol and cilostazol with atorvastatin attenuates atherosclerosis in moderately hypercholesterolemic rabbits. Lipids Health Dis 2015. [PMID: 26220196 PMCID: PMC4517357 DOI: 10.1186/s12944-015-0083-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background Atherosclerotic cardiovascular disease is one of the major diseases that seriously impacts human health. Combined drug therapy may be efficacious in delaying the occurrence of cardiovascular events. Aim The current study was designed to investigate whether combined use of probucol (an anti-oxidant agent) with cilostazol (a platelet aggregation inhibitor) would increase the inhibitory effect of statins (a lipid-lowering agent) on atherosclerosis in moderately hypercholesterolemic rabbits. Methods and Results Thirty Japanese white rabbits were fed with a high cholesterol diet for 12 weeks, which was supplemented with either 0.005 % atorvastatin alone or 0.005 % atorvastatin plus 0.3 % probucol and 0.3 % cilostazol. Except for high-density lipoprotein cholesterol, no difference was found in plasma lipids among vehicle, statin, and the combined treatment group. However, atherosclerotic lesions were significantly reduced by statin treatment compared with vehicle. Moreover, we found that the anti-atherogenic effect of statin was further enhanced by the combined treatment, which was due to increased anti-inflammatory and anti-oxidant properties. Conclusions These data demonstrated that combined drug treatment exhibits potent athero-protective effects via pleiotropic functions, such as anti-inflammatory and anti-oxidative stress, which is independent of the lipid-lowering effect.
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Affiliation(s)
- Yanli Wang
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Department of Pathology, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Liang Bai
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China. .,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China.
| | - Yan Lin
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Yulong Chen
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Hua Guan
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Ninghong Zhu
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Yafeng Li
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Shoucui Gao
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Lijing Sun
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Sihai Zhao
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China
| | - Jianglin Fan
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, 409-3898, Japan
| | - Enqi Liu
- Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, Shaanxi, 710061, China.,Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710061, China.,Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
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Maternal lipopolysaccharide alters the newborn oxidative stress and C-reactive protein levels in response to an inflammatory stress. J Dev Orig Health Dis 2015; 3:358-63. [PMID: 25102265 DOI: 10.1017/s204017441200027x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Maternal infection is associated with oxidative stress (OS) and inflammatory responses. We have previously shown that maternal exposure to lipopolysaccharide (LPS) at E18 alters the subsequent offspring immune response. As immune responses are mediated, in part, by OS, we sought to determine if maternal inflammation during pregnancy programs offspring OS and C-reactive protein (CRP) levels. Pregnant Sprague-Dawley rats received intraperitoneal (i.p.) injections of saline or LPS at 18 days' gestation (n = 4), and pups delivered spontaneously at term. At postnatal day 24, male and female offspring received i.p. injection of LPS. Serum lipid peroxides formation (PD) and CRP levels were determined before and at 4 h following the LPS injection. Pups of LPS-exposed dams had significantly higher basal OS (PD 29.4 ± 5.4 v. 10.1 ± 4.8 nmol/ml) compared with controls. In response to LPS, CRP levels (20.4 ± 2.8 v. 5.7 ± 1.0 ng/ml) were significantly higher among pups of LPS-exposed dams than controls. Prenatal maternal exposure to LPS increases baseline OS levels in neonates and CRP levels in response to LPS. These results suggest that maternal inflammation during the antenatal period may induce long-term sequelae in the offspring that may predispose to adult disease.
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Fordjour PA, Wang Y, Shi Y, Agyemang K, Akinyi M, Zhang Q, Fan G. Possible mechanisms of C-reactive protein mediated acute myocardial infarction. Eur J Pharmacol 2015; 760:72-80. [PMID: 25895642 DOI: 10.1016/j.ejphar.2015.04.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/01/2015] [Accepted: 04/01/2015] [Indexed: 02/04/2023]
Abstract
Myocardial infarction is a relevant cardiovascular event worldwide for morbidity and mortality. It has been theorized that acute myocardial infarctions (AMIs) and other acute coronary events that are precipitated by atherosclerosis are due to arterial blockage from fat deposits. It is now known, however, that atherosclerosis involves more than just lipids. Inflammation has also been studied extensively to play a substantial role in myocardial infarction. There have been debates and conflicting reports over the past few years about the value of assessing levels of C-reactive protein and other biomarkers of inflammation for the prediction of cardiovascular events. Several studies have shown that CRP is not only an inflammatory marker, but also involved in the pathogenesis of myocardial infarction. Studies have linked atherogenesis and rupture of atherosclerotic lesion to endothelial dysfunction. CRP directly inhibits endothelial cell nitric oxide (NO) production via destabilizing endothelial NO synthase (eNOS). Decreased NO release causes CRP mediated inhibition of angiogenesis, stimulating endothelial cell apoptosis. CRP can also activate the complement system through the classical pathway. Complement activation plays an important role in mediating monocyte and neutrophil recruitment in an injured myocardium and may therefore lead to increase in infarct size. This article discusses the possible roles of CRP in complement activation, endothelial dysfunction and its impact on the development of myocardial infarction. We also reviewed the possible therapeutic approaches to myocardial infarction.
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Affiliation(s)
- Patrick Asare Fordjour
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yadong Wang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yang Shi
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Kojo Agyemang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Mary Akinyi
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Qiang Zhang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Guanwei Fan
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
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Fan J, Zhang J, Chen YE. C-Reactive Protein and its Pathophysiological Roles in Atherosclerosis. Atherosclerosis 2015. [DOI: 10.1002/9781118828533.ch20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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The relationship between rheumatoid factor levels and coronary artery lesion complexity and severity in patients with stable coronary artery disease. ADVANCES IN INTERVENTIONAL CARDIOLOGY 2015; 11:26-31. [PMID: 25848367 PMCID: PMC4372628 DOI: 10.5114/pwki.2015.49181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 08/29/2014] [Accepted: 10/22/2014] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION The relation between serum rheumatoid factor levels and the extent, severity, and complexity of coronary artery disease has not been adequately studied. AIM Therefore, we assessed the relationship between the severity of coronary artery disease assessed by SYNTAX score and serum rheumatoid factor levels in patients with stable coronary artery disease. MATERIAL AND METHODS We enrolled 268 consecutive patients who underwent coronary angiography. Patients with acute coronary syndrome and chronic immune disorders were excluded. Baseline serum rheumatoid factor levels were measured and the SYNTAX score was calculated from the study population. RESULTS Patients were divided into two groups. Group 1 was defined as low SYNTAX score < 22, and group 2 was defined as intermediate and high SYNTAX score > 22. Serum rheumatoid factor levels were significantly higher in the intermediate and high-SYNTAX score group than in the low-SYNTAX score group (16.4 ±9 IU/mlvs. 11.36 ±5 IU/ml, p < 0.001). Also, there was a significant correlation between rheumatoid factor and CRP levels with the SYNTAX score r = 0.411; p < 0.001 and r = 0.275; p < 0.001, respectively. On multivariate linear regression analysis, rheumatoid factor (β = 0.101, p < 0.001) was an independent risk factor for intermediate and high SYNTAX score in patients with stable coronary artery disease. In receiver operator characteristic curve analysis, optimal cut-off value of rheumatoid factor to predict high SYNTAX score was found to be 10.5 IU/ml, with 69% sensitivity and 61% specificity. CONCLUSIONS The rheumatoid factor level was independently associated with the extent, complexity, and severity of coronary artery disease assessed by SYNTAX score in patients with stable coronary artery diseases.
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C-reactive Protein Predicts Postoperative Delirium Following Vascular Surgery. Ann Vasc Surg 2014; 28:1923-30. [DOI: 10.1016/j.avsg.2014.07.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/01/2014] [Accepted: 07/01/2014] [Indexed: 11/20/2022]
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Detection of the inflammation biomarker C-reactive protein in serum samples: towards an optimal biosensor formula. BIOSENSORS-BASEL 2014; 4:340-57. [PMID: 25587427 PMCID: PMC4287706 DOI: 10.3390/bios4040340] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/04/2014] [Accepted: 09/16/2014] [Indexed: 12/18/2022]
Abstract
The development of an electrochemical immunosensor for the biomarker, C-reactive protein (CRP), is reported in this work. CRP has been used to assess inflammation and is also used in a multi-biomarker system as a predictive biomarker for cardiovascular disease risk. A gold-based working electrode sensor was developed, and the types of electrode printing inks and ink curing techniques were then optimized. The electrodes with the best performance parameters were then employed for the construction of an immunosensor for CRP by immobilizing anti-human CRP antibody on the working electrode surface. A sandwich enzyme-linked immunosorbent assay (ELISA) was then constructed after sample addition by using anti-human CRP antibody labelled with horseradish peroxidase (HRP). The signal was generated by the addition of a mediator/substrate system comprised of 3,3,5',5'-Tetramethylbenzidine dihydrochloride (TMB) and hydrogen peroxide (H2O2). Measurements were conducted using chronoamperometry at -200 mV against an integrated Ag/AgCl reference electrode. A CRP limit of detection (LOD) of 2.2 ng·mL(-1) was achieved in spiked serum samples, and performance agreement was obtained with reference to a commercial ELISA kit. The developed CRP immunosensor was able to detect a diagnostically relevant range of the biomarker in serum without the need for signal amplification using nanoparticles, paving the way for future development on a cardiac panel electrochemical point-of-care diagnostic device.
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Garofolo L, Ferreira SRG, Miranda Junior F. Biomarkers of inflammation may be of use for identification of more severe peripheral arterial occlusive disease. J Vasc Bras 2014. [DOI: 10.1590/jvb.2014.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:Atherosclerosis is a multifactorial disease with an inflammatory pathophysiological basis. Cytokines released during the atherosclerotic process induce production of C-reactive protein (CRP) in the liver, which is an important marker of inflammation.Objective:We tested whether inflammatory biomarkers were associated with deterioration of peripheral arterial occlusive disease (PAOD) in a population at high cardiovascular risk.Methods:1,330 subjects ≥30 years of age underwent clinical and laboratory examinations as part of a population-based study of the prevalence of diabetes. PAOD was defined as an ankle-brachial index (ABI) ≤0.90. After application of exclusion criteria, the sample comprised 1,038 subjects. Traditional risk factors, CRP and interleukin 6 (IL-6) were also compared across three ABI categories (≤0.70; 0.71-0.90; ≥0.90). Mean values for these variables were compared by presence/absence of DAOP (Student's t test) and by ABI categories (ANOVA). Poisson regression and logistic regression models were used to test for associations between risk factors and DAOP and between risk factors and the ABI categories. Pearson's linear correlation coefficients were calculated for the relationship between CRP and IL-6 levels.Results:Mean age was 56.8±12.9 years, 54% of the sample were women and the prevalence of DAOP was 21.0% (95%CI 18.4-24.1). Individuals with ABI ≤0.70 had higher concentrations of CRP-us (2.1 vs. 1.8) and of IL-6 (1.25 vs. 1.17). Concentrations of CRP and IL-6 were only correlated in patients with DAOP, (p=0.004).Conclusions:The finding that CRP and IL-6 levels were only elevated among people with advanced DAOP may suggest that these biomarkers have a role to play as indicators of more severe disease. Prospective studies are needed to test this hypothesis.
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Argente MJ, García MDLL, Birlanga V, Muelas R. Relationship between cortisol and acute phase protein concentrations in female rabbits. Vet J 2014; 202:172-5. [PMID: 25175722 DOI: 10.1016/j.tvjl.2014.07.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 07/07/2014] [Accepted: 07/24/2014] [Indexed: 12/30/2022]
Abstract
Rabbit meat production in Europe is usually based on a semi-intensive system, in which lactation and gestation overlap. The demands of lactation and pregnancy are likely to be relatively stressful for female rabbits and may compromise the immune system and reproductive performance. The present study was designed to characterise circulating levels of cortisol, haptoglobin (Hp), C-reactive protein (CRP), and serum amyloid A (SAA) in non-lactating and lactating female rabbits at first and second mating, and to determine whether any relationship exists between these biomarkers and litter size. Serum cortisol concentrations were at their greatest (mean ± SEM = 39.5 ± 3.9 nmol/L) in animals at the end of lactation. However, after weaning, cortisol concentrations were not significantly different compared to nulliparous females (19.9 ± 3.6 vs. 16.3 ± 2.2 nmol/L, respectively). The highest concentrations of circulating Hp (0.14 ± 0.01 g/L) were seen in early lactating primiparous females, and lower in nulliparous females and in rabbits after weaning. In contrast, nulliparous female rabbits showed the highest plasma CRP values (13.1 ± 1.1 mg/L). No significant differences were found for SAA. Nulliparous females had smaller litter sizes than early lactating and non-lactating primiparous female rabbits. CRP and SAA showed a positive correlation (r = +0.24, P = 0.011) and were negatively related to litter size (r = -0.23, P = 0.017 and P = 0.032, respectively). Cortisol and Hp were not related to CRP, SAA, nor to litter size. These results suggest a closer association between the mechanisms that regulate release of CRP and SAA, compared to those that regulate Hp production. Thus, lactation is associated with changes in several stress biomarkers. CRP and SAA might be more useful for evaluating animal welfare and for predicting subsequent reproductive performance of female rabbits.
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Affiliation(s)
- María-José Argente
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, Ctra de Beniel km 3.2, 03312 Orihuela, Spain.
| | - María de la Luz García
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, Ctra de Beniel km 3.2, 03312 Orihuela, Spain
| | - Virginia Birlanga
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, Ctra de Beniel km 3.2, 03312 Orihuela, Spain
| | - Raquel Muelas
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, Ctra de Beniel km 3.2, 03312 Orihuela, Spain
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Molnar T, Pusch G, Papp V, Feher G, Szapary L, Biri B, Nagy L, Keki S, Illes Z. The L-arginine pathway in acute ischemic stroke and severe carotid stenosis: temporal profiles and association with biomarkers and outcome. J Stroke Cerebrovasc Dis 2014; 23:2206-2214. [PMID: 25018114 DOI: 10.1016/j.jstrokecerebrovasdis.2014.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 04/29/2014] [Accepted: 05/05/2014] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Endothelial dysfunction is associated with increased levels of asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) resulting in a decreased production of nitric oxide, which regulates the vascular tone. METHODS Patients with acute ischemic stroke (AIS, n = 55) and asymptomatic significant carotid stenosis (AsCS, n = 44) were prospectively investigated. L-arginine, ADMA, SDMA, S100 B, and high-sensitivity C-reactive protein (hsCRP) were serially measured within 6 hours after the onset of stroke, at 24 and 72 poststroke hours. All markers were compared with healthy subjects (n = 45). The severity of AIS was daily assessed by National Institute of Health Stroke Scale scoring. RESULTS Even within 6 hours after the onset of stroke, L-arginine, ADMA, and SDMA were significantly higher in patients with AIS compared with both AsCS and healthy subjects. S100 B reflecting infarct size, positively correlated with the level of SDMA at 72 poststroke hours; changes in concentration of S100 B positively correlated with changes in the concentration of ADMA by 72 hours. Change in concentration of both ADMA and SDMA correlated with the change in concentration of hsCRP. Concentrations of L-arginine and hsCRP at 72 poststroke hours, respectively, were independent predictors of poststroke infection. S100 B level measured within 6 hours after the onset of AIS and hsCRP at 72 poststroke hours were independent predictors of death. CONCLUSIONS Metabolites of the L-arginine pathway were elevated in the very acute phase of ischemic stroke indicating a more pronounced endothelial dysfunction compared with AsCS. An increased basal L-arginine level in patients with AIS might be an adaptive mechanism; such transient elevation of the L-arginine/ADMA ratio at 24 poststroke hours may suggest that a temporary increase of L-arginine along with decrease of ADMA might be related to the protective role of L-arginine. Changes in the L-arginine pathway are predictive of poststroke infections.
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Affiliation(s)
- Tihamer Molnar
- Department of Anesthesiology and Intensive Care, University of Pecs, Pecs, Hungary.
| | | | - Viktoria Papp
- Department of Neurology, University of Pecs, Pecs, Hungary
| | - Gergely Feher
- Department of Neurology, University of Pecs, Pecs, Hungary
| | - Laszlo Szapary
- Department of Neurology, University of Pecs, Pecs, Hungary
| | - Bernadett Biri
- Department of Applied Chemistry, University of Debrecen, Debrecen, Hungary
| | - Lajos Nagy
- Department of Applied Chemistry, University of Debrecen, Debrecen, Hungary
| | - Sandor Keki
- Department of Applied Chemistry, University of Debrecen, Debrecen, Hungary
| | - Zsolt Illes
- Department of Neurology, Odense University Hospital, Odense, Denmark; Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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Recognition functions of pentameric C-reactive protein in cardiovascular disease. Mediators Inflamm 2014; 2014:319215. [PMID: 24948846 PMCID: PMC4052174 DOI: 10.1155/2014/319215] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 05/07/2014] [Accepted: 05/07/2014] [Indexed: 02/02/2023] Open
Abstract
C-reactive protein (CRP) performs two recognition functions that are relevant to cardiovascular disease. First, in its native pentameric conformation, CRP recognizes molecules and cells with exposed phosphocholine (PCh) groups, such as microbial pathogens and damaged cells. PCh-containing ligand-bound CRP activates the complement system to destroy the ligand. Thus, the PCh-binding function of CRP is defensive if it occurs on foreign pathogens because it results in the killing of the pathogen via complement activation. On the other hand, the PCh-binding function of CRP is detrimental if it occurs on injured host cells because it causes more damage to the tissue via complement activation; this is how CRP worsens acute myocardial infarction and ischemia/reperfusion injury. Second, in its nonnative pentameric conformation, CRP also recognizes atherogenic low-density lipoprotein (LDL). Recent data suggest that the LDL-binding function of CRP is beneficial because it prevents formation of macrophage foam cells, attenuates inflammatory effects of LDL, inhibits LDL oxidation, and reduces proatherogenic effects of macrophages, raising the possibility that nonnative CRP may show atheroprotective effects in experimental animals. In conclusion, temporarily inhibiting the PCh-binding function of CRP along with facilitating localized presence of nonnative pentameric CRP could be a promising approach to treat atherosclerosis and myocardial infarction. There is no need to stop the biosynthesis of CRP.
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Effects of antisense oligonucleotides against C-reactive protein on the development of atherosclerosis in WHHL rabbits. Mediators Inflamm 2014; 2014:979132. [PMID: 24872601 PMCID: PMC4020194 DOI: 10.1155/2014/979132] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 04/01/2014] [Indexed: 01/02/2023] Open
Abstract
Increased plasma levels of C-reactive protein (CRP) are closely associated with cardiovascular diseases, but whether CRP is directly involved in the pathogenesis of atherosclerosis is still under debate. Many controversial and contradictory results using transgenic mice and rabbits have been published but it is also unclear whether CRP lowering can be used for the treatment of atherosclerosis. In the current study, we examined the effects of the rabbit CRP antisense oligonucleotides (ASO) on the development of atherosclerosis in WHHL rabbits. CRP ASO treatment led to a significant reduction of plasma CRP levels; however, both aortic and coronary atherosclerotic lesions were not significantly changed compared to those of control WHHL rabbits. These results suggest that inhibition of plasma CRP does not affect the development of atherosclerosis in WHHL rabbits.
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Animal models of C-reactive protein. Mediators Inflamm 2014; 2014:683598. [PMID: 24872599 PMCID: PMC4020216 DOI: 10.1155/2014/683598] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 03/17/2014] [Accepted: 04/01/2014] [Indexed: 11/17/2022] Open
Abstract
As the main theme of this special issue, CRP not only is an inflammatory marker but also has diverse biological functions associated with different diseases. To investigate CRP's physiologies and their relationship with human pathological significance, it is essential to use appropriate animal models for translational research. The most popular models for the study of CRP are transgenic mice. However, researchers should be careful when extrapolating the findings derived from these animal models. This review will discuss the current concerns on CRP transgenic mice and rabbits.
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Inhibiting C-reactive protein for the treatment of cardiovascular disease: promising evidence from rodent models. Mediators Inflamm 2014; 2014:353614. [PMID: 24803739 PMCID: PMC3996300 DOI: 10.1155/2014/353614] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 02/28/2014] [Indexed: 11/17/2022] Open
Abstract
Raised blood C-reactive protein (CRP) level is a predictor of cardiovascular events, but whether blood CRP is causal in the disease process is unknown. The latter would best be defined by pharmacological inhibition of the protein in the context of a randomized case-control study. However, no CRP specific drug is currently available so such a prospective study cannot be performed. Blood CRP is synthesized primarily in the liver and the liver is an organ where antisense oligonucleotide (ASO) drugs accumulate. Taking advantage of this we evaluated the efficacy of CRP specific ASOs in rodents with experimentally induced cardiovascular damage. Treating rats for 4 weeks with a rat CRP-specific ASO achieved >60% reduction of blood CRP. Notably, this effect was associated with improved heart function and pathology following myocardial infarction (induced by ligation of the left anterior descending artery). Likewise in human CRP transgenic mice treated for 2 weeks with a human CRP-specific ASO, blood human CRP was reduced by >70% and carotid artery patency was improved (2 weeks after surgical ligation). CRP specific ASOs might pave the way towards a placebo-controlled trial that could clarify the role of CRP in cardiovascular disease.
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C-reactive protein in human atherogenesis: facts and fiction. Mediators Inflamm 2014; 2014:561428. [PMID: 24799767 PMCID: PMC3995305 DOI: 10.1155/2014/561428] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 02/28/2014] [Accepted: 03/03/2014] [Indexed: 11/25/2022] Open
Abstract
The role of C-reactive protein (CRP) in atherosclerosis is controversially discussed. Whereas initial experimental studies suggested a pathogenic role for CRP in atherogenesis, more recent genetic data from Mendelian randomization trials failed to provide evidence for a causative role of CRP in cardiovascular disease. Also, experimental results from laboratories all over the world were indeed contradictory, partly because of species differences in CRP biology and partly because data were not accurately evaluated. Here we summarize the published data from experimental work with mainly human material in order to avoid confusion based on species differences in CRP biology. Experimental work needs to be reevaluated after reconsideration of some traditional rules in research: (1) in order to understand a molecule's role in disease it may be helpful to be aware of its role in physiology; (2) it is necessary to define the disease entity that experimental CRP research deals with; (3) the scientific consensus is as follows: do not try to prove your hypothesis. Specific CRP inhibition followed by use of CRP inhibitors in controlled clinical trials may be the only way to prove or disprove a causative role for CRP in cardiovascular disease.
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Saiki R, Hayashi D, Ikuo Y, Nishimura K, Ishii I, Kobayashi K, Chiba K, Toida T, Kashiwagi K, Igarashi K. Acrolein stimulates the synthesis of IL-6 and C-reactive protein (CRP) in thrombosis model mice and cultured cells. J Neurochem 2013; 127:652-9. [DOI: 10.1111/jnc.12336] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 05/11/2013] [Accepted: 06/10/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Ryotaro Saiki
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
- Amine Pharma Research Institute; Innovation Plaza at Chiba University; Chuo-ku Chiba Japan
| | - Daisuke Hayashi
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Yukiko Ikuo
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Kazuhiro Nishimura
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Itsuko Ishii
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Kaoru Kobayashi
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Kan Chiba
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Toshihiko Toida
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
| | - Keiko Kashiwagi
- Faculty of Pharmacy; Chiba Institute of Science; Choshi Chiba Japan
| | - Kazuei Igarashi
- Graduate School of Pharmaceutical Sciences; Chiba University; Chuo-ku Chiba Japan
- Amine Pharma Research Institute; Innovation Plaza at Chiba University; Chuo-ku Chiba Japan
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Sinden NJ, Stockley RA. Chronic obstructive pulmonary disease: an update of treatment related to frequently associated comorbidities. Ther Adv Chronic Dis 2012; 1:43-57. [PMID: 23251728 DOI: 10.1177/2040622310370631] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is associated with a pulmonary inflammatory response to inhaled substances, and individuals with COPD often have raised levels of several circulating inflammatory markers indicating the presence of systemic inflammation. Recently, there has been increasing interest in comorbidities associated with COPD such as skeletal muscle dysfunction, cardiovascular disease, osteoporosis, diabetes and lung cancer. These conditions are associated with a similar inflammation-based patho-physiology to COPD, and may represent a lung inflammatory 'overspill' to distant organs. Cardiovascular disease is a significant cause of mortality in COPD, and the concepts of an inflammatory link raise the possibility that treatment for one organ may show benefits to comorbidities in other organs. When considering treatment of COPD and its comorbidities, one approach is to target the pulmonary inflammation and hence reduce any 'overspill' effect of inflammatory mediators systemically as suggested by response to inhaled corticosteroids. Alternatively, treatment targeted towards comorbid organs may alter features of pulmonary disease as statins, angiotensin-converting enzyme (ACE) inhibitors and peroxisome proliferator-activated receptor (PPAR) agonists may have beneficial effects on COPD by reducing exacerbations and mortality. Newer anti-inflammatory treatments, such as phosphodiesterase 4 (PDE4), nuclear factor(NF)-kB, and p38 mitogen-activated protein kinase (MAPK) inhibitors, are given systemically and may confer benefits to both COPD and its comorbidities. With common inflammatory pathways it might be expected that successful anti-inflammatory therapy in one organ may also influence others. In this review we explore the concepts of systemic inflammation in COPD and current evidence for treatment of its related comorbidities.
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Affiliation(s)
- Nicola J Sinden
- Nicola J. Sinden, MBChB(Honours), MRCP (UK) University Hospital Birmingham NHS Foundation Trust - Respiratory Medicine, Birmingham, UK
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Zhang Z, Yang Y, Hill MA, Wu J. Does C-reactive protein contribute to atherothrombosis via oxidant-mediated release of pro-thrombotic factors and activation of platelets? Front Physiol 2012; 3:433. [PMID: 23162475 PMCID: PMC3499691 DOI: 10.3389/fphys.2012.00433] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 10/24/2012] [Indexed: 01/08/2023] Open
Abstract
Inflammation and the generation of reactive oxygen species (ROS) have been implicated in the initiation and progression of atherosclerosis. Although C-reactive protein (CRP) has traditionally been considered to be a biomarker of inflammation, recent in vitro and in vivo studies have provided evidence that CRP, itself, exerts pro-thrombotic effects on vascular cells and may thus play a critical role in the development of atherothrombosis. Of particular importance is that CRP interacts with Fcγ receptors on cells of the vascular wall giving rise to the release of pro-thrombotic factors. The present review focuses on distinct sources of CRP-mediated ROS generation as well as the pivotal role of ROS in CRP-induced tissue factor expression. These studies provide considerable insight into the role of the oxidative mechanisms in CRP-mediated stimulation of pro-thrombotic factors and activation of platelets. Collectively, the available data provide strong support for ROS playing an important intermediary role in the relationship between CRP and atherothrombosis.
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Affiliation(s)
- Zhuo Zhang
- Drug Discovery Research Center, Luzhou Medical College Luzhou, China
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Chang MK, Hartvigsen K, Ryu J, Kim Y, Han KH. The pro-atherogenic effects of macrophages are reduced upon formation of a complex between C-reactive protein and lysophosphatidylcholine. JOURNAL OF INFLAMMATION-LONDON 2012; 9:42. [PMID: 23114023 PMCID: PMC3506444 DOI: 10.1186/1476-9255-9-42] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 09/17/2012] [Indexed: 12/03/2022]
Abstract
Rationale C-reactive protein (CRP) and lysophosphatidylcholine (LPC) are phosphorylcholine-(PC)-containing oxidized phospholipids (oxPLs) found in oxidized LDL (oxLDL), which trigger pro-atherogenic activities of macrophages during the process of atherosclerosis. It has been previously reported that CRP binds to the PC head group of oxLDL in a calcium-dependent manner. The aim of this study was to investigate the importance of binding between CRP and LPC to the pro-atherogenic activities of macrophages. Objectives and findings A chemiluminescent immunoassay and HPLC showed that human recombinant CRP formed a stable complex with LPC in the presence of calcium. The Kd value of the binding of the CRP-LPC complex to the receptors FcγRIA or FcγRIIA was 3–5 fold lower than that of CRP alone. The CRP-LPC complex triggered less potent generation of reactive oxygen species and less activation of the transcription factors AP-1 and NF-kB by human monocyte-derived macrophages in comparison to CRP or LPC alone. However, CRP did not affect activities driven by components of oxLDL lacking PC, such as upregulation of PPRE, ABCA1, CD36 and PPARγ and the enhancement of cholesterol efflux by human macrophages. The presence of CRP inhibited the association of Dil-labelled oxLDL to human macrophages. Conclusions The formation of complexes between CRP and PC-containing oxPLs, such as LPC, suppresses the pro-atherogenic effects of CRP and LPC on macrophages. This effect may in part retard the progression of atherosclerosis.
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Affiliation(s)
- Mi-Kyung Chang
- Department of Medicine, University of California San Diego, La Jolla, CA, USA.,Present address: Bayer Korea, 7th fl. Samsung-Boramae Omni Tower, 395-62, Sindaebang dong Dongzak-gu, Seoul, South Korea
| | - Karsten Hartvigsen
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Jewon Ryu
- University of Ulsan College of Medicine, Asan Medical Center, 388-1 Pungnap-2 dong Songpa-gu 138-736, Seoul, South Korea
| | - Yuna Kim
- University of Ulsan College of Medicine, Asan Medical Center, 388-1 Pungnap-2 dong Songpa-gu 138-736, Seoul, South Korea
| | - Ki Hoon Han
- University of Ulsan College of Medicine, Asan Medical Center, 388-1 Pungnap-2 dong Songpa-gu 138-736, Seoul, South Korea
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Matsuura Y, Hatakeyama K, Imamura T, Tsuruda T, Shibata Y, Kodama T, Kitamura K, Asada Y. Different distribution of pentraxin 3 and C-reactive protein in coronary atherosclerotic plaques. J Atheroscler Thromb 2012; 19:837-45. [PMID: 22785134 DOI: 10.5551/jat.12526] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM To understand the differences between histopathological characteristics related to PTX3 (pentraxin 3) and CRP (C-reactive protein) in coronary atherosclerotic plaques. METHODS AND RESULTS To assess the localization of PTX3 and CRP in coronary plaque, immunohistochemistry was performed using 157 coronary artery specimens from 45 autopsied cases. Overall, immunoreactivity to CRP was more intense than that to PTX3 in lipid rich plaque; however, PTX3 was notably abundant in areas of intraplaque hemorrhage, in which CRP was quite sparse. On quantitative analysis, complicated plaques showed more immunopositive area of PTX3 than fibroatheroma, but with CRP, this trend disappeared. In addition, we examined the phenotype of macrophages in PTX3- and CRP-rich areas using CD163 staining (M2 macrophages). Consequently, these areas were differently characterized by the accumulation of macrophages with high and low magnitude of CD163 positivity, respectively. Next, we immunohistochemically investigated relationships among PTX3, CRP, histological components and clinical presentation in 73 coronary atherectomy specimens obtained from 35 and 38 patients with unstable (UAP) and stable angina pectoris (SAP), respectively. Both PTX3 and CRP were more intense in culprit plaques from patients with UAP than with SAP, and they significantly correlated with CD68 (pan macrophage)-positive areas; however, there was no correlation between PTX3 and CRP. CONCLUSION Although PTX3 and CRP were more enhanced in unstable than in stable coronary plaques, their distribution distinctly differed, suggesting that they play distinct biological roles in unstable plaques.
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Affiliation(s)
- Yunosuke Matsuura
- Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
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