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Abdulfattah SY, Alagely HS, Samawi FT. Influence of the rs4238001 Genetic Polymorphism of the SR-B1 Gene on Serum Lipid Levels and Response to Rosuvastatin in Myocardial Infarction Iraqi Patients. Biochem Genet 2023:10.1007/s10528-023-10613-4. [PMID: 38133857 DOI: 10.1007/s10528-023-10613-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023]
Abstract
Scavenger receptor type B (SR-BI) is a receptor that binds both native and altered lipoproteins. It was revealed to facilitate utilization of high-density lipoprotein HDL and significantly affect the reverse transport of cholesterol. Therefore, the objectives were to identify the possible role of the genetic variant rs4238001 in patients with myocardial infarction (MI) on serum lipid level, and how this variant could impact the response of rosuvastatin drug. The genotyping of the rs4238001 genetic polymorphism of the SR-B1 gene was performed in 300 participants, including 150 MI patients treated with 20mg/day/4 weeks of rosuvastatin and 150 healthy control using Taq man probes (FAM and VIC) by Real-time PCR technique. The concentrations of the lipid profile were evaluated. The significance of the anthropometric data was revealed in the ejection fraction and smoking status (p < 0.05) between groups. The lipid profile shows either significant differences between control and MI patients (pre-treatment) or between pre-and post-treatment of MI patients (p < 0.05), but not HDL-c (p > 0.05). The minor allele frequency MAF% of the T allele and TT genotype were more frequent in MI patients than in controls (P = 0.173; OR = 3.62; 95% CI = 0.74-17.64). CC genotype was found to be associated with response to rosuvastatin therapy with a change of % (29.08 ± 53.2; p = 0.021). In the Iraqi population, the rs4238001 polymorphism of the SR-B1 gene is associated with variations in serum lipids, and the CC genotype of the SNP is related to higher HDL-C in the lipid-lowering rosuvastatin response.
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Affiliation(s)
- Shaimaa Y Abdulfattah
- Medical and Molecular Department, Biotechnology Research Center, Al-Nahrain University, Jadriya, Baghdad, Iraq.
| | - Huda Salman Alagely
- Medical and Molecular Department, Biotechnology Research Center, Al-Nahrain University, Jadriya, Baghdad, Iraq
| | - Farah T Samawi
- Medical and Molecular Department, Biotechnology Research Center, Al-Nahrain University, Jadriya, Baghdad, Iraq
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Association between a genetic variant in scavenger receptor class B type 1 and its role on codon usage bias with increased risk of developing coronary artery disease. Clin Biochem 2021; 95:60-65. [PMID: 34097878 DOI: 10.1016/j.clinbiochem.2021.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 05/21/2021] [Accepted: 06/02/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Coronary artery disease (CAD) as an important cause of morbidity and mortality globally. The scavenger receptor class B type 1 (SCARB1) plays an essential role in the reverse cholesterol transport. We have explored the association between a genetic variant, rs5888, in the SCARB1 gene with CAD and serum HDL-C levels. METHODS Patients were categorized into two groups' angiogram positive (>50% coronary stenosis) and angiogram negative (<50% coronary stenosis). Genotyping was carried out using polymerase chain reaction-amplification refractory mutation system. The association between the SNP rs5888 and serum HDL-C was analyzed using a logistic regression model. RESULTS The results showed that the subjects carrying a T allele was associated with a decreased serum HDL-C levels compared to the C allele in total population (p < 0.001). The risk of angiogram positivity in subjects carrying a T allele was 3.1-fold higher than for the control group (p < 0.001). CONCLUSION CVD patients carrying the T allele of rs5888 variant in the SCARB1 gene was associated with decreased serum level of HDL.
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Gracia-Rubio I, Martín C, Civeira F, Cenarro A. SR-B1, a Key Receptor Involved in the Progression of Cardiovascular Disease: A Perspective from Mice and Human Genetic Studies. Biomedicines 2021; 9:biomedicines9060612. [PMID: 34072125 PMCID: PMC8229968 DOI: 10.3390/biomedicines9060612] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 12/21/2022] Open
Abstract
High plasma level of low-density lipoprotein (LDL) is the main driver of the initiation and progression of cardiovascular disease (CVD). Nevertheless, high-density lipoprotein (HDL) is considered an anti-atherogenic lipoprotein due to its role in reverse cholesterol transport and its ability to receive cholesterol that effluxes from macrophages in the artery wall. The scavenger receptor B class type 1 (SR-B1) was identified as the high-affinity HDL receptor, which facilitates the selective uptake of cholesterol ester (CE) into the liver via HDL and is also implicated in the plasma clearance of LDL, very low-density lipoprotein (VLDL) and lipoprotein(a) (Lp(a)). Thus, SR-B1 is a multifunctional receptor that plays a main role in the metabolism of different lipoproteins. The aim of this review is to highlight the association between SR-B1 and CVD risk through mice and human genetic studies.
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Affiliation(s)
- Irene Gracia-Rubio
- Unidad Clínica y de Investigación en Lípidos y Arteriosclerosis, Instituto de Investigación Sanitaria Aragón (IIS Aragón), Hospital Universitario Miguel Servet, 50009 Zaragoza, Spain; (F.C.); (A.C.)
- Correspondence: or ; Tel.: +34-976-765-500 (ext. 142895)
| | - César Martín
- Instituto Biofisika (UPV/EHU, CSIC) y Departamento de Bioquímica y Biología Molecular, Universidad del País Vasco UPB/EHU, 48940 Bilbao, Spain;
| | - Fernando Civeira
- Unidad Clínica y de Investigación en Lípidos y Arteriosclerosis, Instituto de Investigación Sanitaria Aragón (IIS Aragón), Hospital Universitario Miguel Servet, 50009 Zaragoza, Spain; (F.C.); (A.C.)
- Centro de Investigación Biomédica en Red Cardiovascular (CIBERCV), Instituto Salud Carlos III, 28029 Madrid, Spain
- Departamento de Medicina, Psiquiatría y Dermatología, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Ana Cenarro
- Unidad Clínica y de Investigación en Lípidos y Arteriosclerosis, Instituto de Investigación Sanitaria Aragón (IIS Aragón), Hospital Universitario Miguel Servet, 50009 Zaragoza, Spain; (F.C.); (A.C.)
- Centro de Investigación Biomédica en Red Cardiovascular (CIBERCV), Instituto Salud Carlos III, 28029 Madrid, Spain
- Instituto Aragonés de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
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Wu DF, Lin D, Lu F, Liao QC, Wu YJ, Wang Z, Yu K, Li WJ, Deng JL. Sex-Specific Influence of the SCARB1 Rs5888 SNP on the Serum Lipid Response to Atorvastatin in Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2020; 13:553-561. [PMID: 33154658 PMCID: PMC7605962 DOI: 10.2147/pgpm.s273346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/28/2020] [Indexed: 11/23/2022]
Abstract
Background Epidemiological studies have shown that there are sex differences in blood lipid levels and lipid responses to statins. Previous studies have shown that the rs5888 single nucleotide polymorphism (SNP) in the scavenger receptor class B type 1 (SCARB1) gene is associated with serum lipid levels in a sex-specific manner. The present study was undertaken to detect the sex-specific influence of the SCARB1 rs5888 SNP on the serum lipid response to atorvastatin in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI). Methods A total of 158 unrelated ACS patients (108 males, 50 females) were enrolled, and all patients received atorvastatin 20 mg/daily after PCI. Genotyping of the rs5888 SNP was performed by polymerase chain reaction and direct sequencing. Serum lipid profiles were determined before treatment and after an average follow-up time of one year. Results The baseline serum total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and apolipoprotein (Apo)AI levels were higher in females than in males (P<0.05). After treatment with atorvastatin, serum TC, LDL-C, and ApoB were decreased, and ApoAI was increased (P<0.05). The effects of atorvastatin on serum lipid levels were different between males and females, and females had greater decreases in TC, LDL-C and ApoB levels than males (P<0.05). The genotypic frequencies of the rs5888 SNP were not different between males and females. The atorvastatin response was not associated with the rs5888 SNP in males (P > 0.05). Nonetheless, in female individuals carrying the rs5888 T-allele, we observed a greater reduction in TC, LDL-C, and ApoB levels after the use of 20 mg/day atorvastatin (P<0.05). Conclusion This study indicates that the SCARB1 rs5888 T-allele was associated with a greater reduction in serum TC, LDL-C, and ApoB after atorvastatin treatment in female patients with ACS undergoing PCI.
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Affiliation(s)
- Dong-Feng Wu
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Dan Lin
- Department of the First Comprehensive Clinic, The Affiliated Stomatology Hospital of Guangxi Medical University, Nanning 530021, Guangxi, People's Republic of China
| | - Feng Lu
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Qin-Chen Liao
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Yu-Juan Wu
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Zhou Wang
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Kun Yu
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Wei-Jun Li
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
| | - Jin-Long Deng
- Department of the Geriatric Cardiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, Guangxi, People's Republic of China
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SCARB1 rs5888 gene polymorphisms in coronary heart disease: A systematic review and a meta-analysis. Gene 2018; 678:280-287. [PMID: 30103009 DOI: 10.1016/j.gene.2018.08.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/16/2018] [Accepted: 08/06/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND Studies have suggested that high-density lipoprotein (HDL) stimulates scavenger receptor class B type 1 (SR-B1) to promote hepatic uptake of cholesterol. SR-B1 is encoded by scavenger receptor class B member 1 (SCARB1) gene in human. A rare mutation in SCARB1 gene has been associated with coronary heart disease (CHD). A polymorphism rs5888 of SCARB1 gene has been linked to CHD risk in humans. OBJECTIVES The objective was to investigate the relationship between the SCARB1 gene polymorphism rs5888 and risk of CHD. METHODS We searched databases of case-control studies and cohort studies on rs5888 polymorphism of SCARB1 gene and risk of CHD. Two reviewers independently screened literature, extracted data, and estimated potential bias of included studies. The quality of the studies was evaluated by recommendation of Newcastle-Ottawa Scale (NOS). Meta-analysis was performed with Stata 12.0 software. RESULTS Seven studies including 6360 subjects (cases: 2456, controls: 3904) were included in the final data combination. Meta-analysis showed T allele had a lower risk of CHD as compared to C allele in allele model (T vs. C: OR = 0.87, 95% CI: 0.70 to 1.09, P = 0.229). Moreover, we found that T allele or TT/TC had a lower risk of CHD as compared to C/CC in male in allele model (T vs. C: OR = 0.79, 95% CI: 0.61 to 1.01). However, no significant association was observed in women in all allele models. CONCLUSIONS Our findings suggested that polymorphism rs5888 had negative association with CHD, especially in male. However, the conclusion needs further verification with high quality studies with larger sample size and rigorous designs.
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Ayhan H, Gormus U, Isbir S, Yilmaz SG, Isbir T. SCARB1 Gene Polymorphisms and HDL Subfractions in Coronary Artery Disease. ACTA ACUST UNITED AC 2018; 31:873-876. [PMID: 28882953 DOI: 10.21873/invivo.11141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 01/03/2023]
Abstract
BACKGROUND/AIM Cardiovascular diseases are a leading cause of mortality and morbidity worldwide. Polymorphisms in the SCARB1 gene are known to be related to plasma lipids. PATIENTS AND METHODS Real time-polymerase chain reaction (RT-PCR) was used for identification of SCARB1 polymorphisms and the Lipoprint Quantimetrix System was employed in identification of HDL subfractions. RESULTS According to allelic distribution, in both groups SCARB1 AA genotype led to a two-fold decrease in the risk of developing cardiovascular disease (p=0.04), while the GA genotype increased the risk two-fold (p=0.03). According to the HDL subfraction analysis results, the AA genotype had higher levels of big-sized HDL subfraction (p=0.02). CONCLUSION The SCARB1AA genotype decreased cardiovascular risk and carrying GA genotype and G allele increased the risk of CAD. AA genotype carriers had higher levels of big-sized HDL subfraction.
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Affiliation(s)
- Huseyin Ayhan
- Department of Molecular Medicine, Yeditepe University, Istanbul, Turkey
| | - Uzay Gormus
- Department of Medical Genetics, Faculty of Medicine, Istinye University, Istanbul, Turkey
| | - Selim Isbir
- Department of Cardiovascular Surgery, Marmara University, Istanbul, Turkey
| | - Seda Gulec Yilmaz
- Department of Molecular Medicine, Yeditepe University, Istanbul, Turkey
| | - Turgay Isbir
- Department of Medical Biology, Yeditepe University, Istanbul, Turkey
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Zeng TT, Tang DJ, Ye YX, Su J, Jiang H. Influence of SCARB1 gene SNPs on serum lipid levels and susceptibility to coronary heart disease and cerebral infarction in a Chinese population. Gene 2017; 626:319-325. [PMID: 28552715 DOI: 10.1016/j.gene.2017.05.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 05/04/2017] [Accepted: 05/09/2017] [Indexed: 02/05/2023]
Abstract
The SCARB1 gene encodes human scavenger receptor class B type I (SR-BI), the primary receptor for high-density lipoprotein (HDL)- cholesteryl ester uptake, and polymorphisms in this gene may influence SR-BI protein expression and serum lipid levels, modulating susceptibility to coronary heart disease (CHD) and cerebral infarction (CI). Therefore, we investigated the association between singlenucleotide polymorphisms (SNPs) in the SCARB1 gene and serum lipid levels as well as risk of CHD and CI in the Chinese Han population. Genotypes in 295 CHD patients, 302 CI patients and 312 healthy controls matched for age and gender were determined by high-resolution melting (HRM). Among the 5 SNPs investigated in this study, rs10846744 and rs2278986 were significantly associated with CHD risk. The frequency of the C allele for rs10846744 and that of the T allele for rs2278986 appeared to be significantly increased in the CHD group (OR: 1.416, 95%CI: 1.128-1.778, P=0.0058 and OR: 1.681, 95%CI: 1.327-2.130, P<0.0001, respectively). CHD patients with genotypes CC and CG for rs10846744 had a higher HDL-c level than those with genotype GG, and CHD patients with genotypes CC and CT for the rs2278986 SNP had a higher HDL-c level compared to those with the TT allele. The other 3 SNPs, rs5888, rs10744182 and rs838893, showed no significant association with serum lipid levels and CHD or CI risk in the Chinese population. The CCCTT and CCTTC haplotypes of rs5888, rs10846744, rs10744182, rs2278986 and rs838893 appear to significantly increase CHD risk, whereas the CGTTC, CCTCT and TGCTC haplotypes appear to significantly reduce risk. Overall, the CCTTC and TGTTC haplotypes acted as a significant risk for CI, with the CGCTC and CCCCT haplotypes conferring significantly reduced risk. These results suggest that SCARB1 gene polymorphisms may contribute to genetic susceptibility to CHD; in particular, the C allele of rs10846744 and the C allele of rs2278986 may serve as risk and protective factors for CHD, respectively.
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Affiliation(s)
- Ting-Ting Zeng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Di-Jiao Tang
- Department of Laboratory Medicine, The first Affiliated Hospital of Chongqing Medical University, Chongqing 402160, PR China
| | - Yuan-Xin Ye
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Jun Su
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China.
| | - Hong Jiang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China.
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Goodarzynejad H, Boroumand M, Behmanesh M, Ziaee S, Jalali A. The rs5888 single nucleotide polymorphism in scavenger receptor class B type 1 (SCARB1) gene and the risk of premature coronary artery disease: a case-control study. Lipids Health Dis 2016; 15:7. [PMID: 26754576 PMCID: PMC4709878 DOI: 10.1186/s12944-016-0176-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 01/04/2016] [Indexed: 12/19/2022] Open
Abstract
Background Several single nucleotide polymorphisms (SNPs) in lipid transport genes have been shown to be associated with premature coronary artery disease (PCAD). The scavenger receptor BI (SCARB1) is a key component of the reverse cholesterol transport and lipid metabolism. We aimed to examine the relationship between the rs5888 SNP within SCARB1and the risk of angiographically determined PCAD. Methods We used an age cut-off of 55 years for women and 45 years for men to define PCAD. Five-hundred and five patients with newly diagnosed angiographically documented PCAD (≥50 % luminal stenosis of any coronary vessel) as case group compared with 546 controls (subjects with no luminal stenosis at coronary arteries). The severity of CAD was determined by vessel score as well as Gensini score. A real-time polymerase chain reaction (PCR) and High Resolution Melting (HRM) analysis was used to distinguish between genotypes. Results T allele as compared to C allele was associated with increased odds of PCAD in total population (adjusted OR = 1.3, 95 % CI = 1.0 to 1.5; p = 0.020), and in women (adjusted OR = 1.3, 95 % CI = 1.0 to 1.8; p = 0.037), but not in men (adjusted OR = 1.2, 95 % CI = 0.9 to 1.5; p = 0.311). There was also no significant association between the examined polymorphism and the severity of CAD in whole or in men or women subgroups. Conclusions Our findings suggest that the SNP (rs5888) within SCARB1 is independently associated with PCAD in a sex-dependent manner.
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Affiliation(s)
- Hamidreza Goodarzynejad
- Department of Cardiac Research, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammadali Boroumand
- Department of Molecular Pathology, Tehran Heart Center, Tehran University of Medical Sciences, North Karegar Ave.and Jalal-Al-Ahmad cross, Tehran, Iran.
| | - Mehrdad Behmanesh
- Department of Genetics, School of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-154, Tehran, Iran.
| | - Shayan Ziaee
- Department of Laboratory Medicine and Pathology, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Jalali
- Department of Cardiac Research, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
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Manichaikul A, Wang XQ, Musani SK, Herrington DM, Post WS, Wilson JG, Rich SS, Rodriguez A. Association of the Lipoprotein Receptor SCARB1 Common Missense Variant rs4238001 with Incident Coronary Heart Disease. PLoS One 2015; 10:e0125497. [PMID: 25993026 PMCID: PMC4439156 DOI: 10.1371/journal.pone.0125497] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 03/13/2015] [Indexed: 11/30/2022] Open
Abstract
Background Previous studies in mice and humans have implicated the lipoprotein receptor SCARB1 in association with atherosclerosis and lipid levels. In the current study, we sought to examine association of SCARB1 missense single nucleotide polymorphism (SNP) rs4238001 with incident coronary heart disease (CHD). Methods and Results Genotypes for rs4238001 were imputed for 2,319 White, 1,570 African American, and 1,292 Hispanic-American MESA participants using the 1,000 Genomes reference set. Cox proportional hazards models were used to determine association of rs4238001 with incident CHD, with adjustments for age, sex, study site, principal components of ancestry, body mass index, diabetes status, serum creatinine, lipid levels, hypertension status, education and smoking exposure. Meta-analysis across race/ethnic groups within MESA showed statistically significant association of the T allele with higher risk of CHD under a consistent and formally adjudicated definition of CHD events in this contemporary cohort study (hazard ratio [HR]=1.49, 95% CI [1.04, 2.14], P = 0.028). Analyses combining MESA with additional population-based cohorts expanded our samples in Whites (total n = 11,957 with 871 CHD events) and African Americans (total n = 5,962 with 355 CHD events) and confirmed an increased risk of CHD overall (HR of 1.19 with 95% CI [1.04, 1.37], P = 0.013), in African Americans (HR of 1.49 with 95% CI [1.07, 2.06], P = 0.019), in males (HR of 1.29 with 95% CI [1.08, 1.54], P = 4.91x10-3) and in White males (HR of 1.24 with 95% CI [1.03, 1.51], P = 0.026). Conclusion SCARB1 missense rs4238001 is statistically significantly associated with incident CHD across a large population of multiple race/ethnic groups.
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Affiliation(s)
- Ani Manichaikul
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Public Health Sciences, Biostatistics Section, University of Virginia, Charlottesville, Virginia, United States of America
| | - Xin-Qun Wang
- Department of Public Health Sciences, Biostatistics Section, University of Virginia, Charlottesville, Virginia, United States of America
| | - Solomon K. Musani
- Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - David M. Herrington
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Wendy S. Post
- Department of Medicine, Johns Hopkins University School of Medicine, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - James G. Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Stephen S. Rich
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, United States of America
| | - Annabelle Rodriguez
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut, United States of America
- * E-mail:
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Guo L, Zheng Z, Ai J, Huang B, Li XA. Hepatic scavenger receptor BI protects against polymicrobial-induced sepsis through promoting LPS clearance in mice. J Biol Chem 2014; 289:14666-73. [PMID: 24719333 DOI: 10.1074/jbc.m113.537258] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Recent studies revealed that scavenger receptor BI (SR-BI or Scarb1) plays a critical protective role in sepsis. However, the mechanisms underlying this protection remain largely unknown. In this study, using Scarb1(I179N) mice, a mouse model specifically deficient in hepatic SR-BI, we report that hepatic SR-BI protects against cecal ligation and puncture (CLP)-induced sepsis as shown by 75% fatality in Scarb1(I179N) mice, but only 21% fatality in C57BL/6J control mice. The increase in fatality in Scarb1(I179N) mice was associated with an exacerbated inflammatory cytokine production. Further study demonstrated that hepatic SR-BI exerts its protection against sepsis through its role in promoting LPS clearance without affecting the inflammatory response in macrophages, the glucocorticoid production in adrenal glands, the leukocyte recruitment to peritoneum or the bacterial clearance in liver. Our findings reveal hepatic SR-BI as a critical protective factor in sepsis and point out that promoting hepatic SR-BI-mediated LPS clearance may provide a therapeutic approach for sepsis.
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Affiliation(s)
- Ling Guo
- From the Department of Pediatrics, Saha Cardiovascular Research Center
| | - Zhong Zheng
- From the Department of Pediatrics, Graduate Center for Nutritional Sciences, and
| | - Junting Ai
- From the Department of Pediatrics, Graduate Center for Nutritional Sciences, and
| | - Bin Huang
- Kentucky Cancer Registry, University of Kentucky College of Medicine, Lexington, Kentucky 40536
| | - Xiang-An Li
- From the Department of Pediatrics, Saha Cardiovascular Research Center, Kentucky Cancer Registry, University of Kentucky College of Medicine, Lexington, Kentucky 40536
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Wu DF, Yin RX, Cao XL, Chen WX, Aung LHH, Wang W, Huang KK, Huang P, Zeng XN, Wu J. Scavenger receptor class B type 1 gene rs5888 single nucleotide polymorphism and the risk of coronary artery disease and ischemic stroke: a case-control study. Int J Med Sci 2013; 10:1771-7. [PMID: 24151447 PMCID: PMC3804801 DOI: 10.7150/ijms.7044] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 09/15/2013] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Our previous studies have showed that the rs5888 single nucleotide polymorphism (SNP) in Scavenger receptor class B type 1 (SCARB1) gene is associated with serum lipid levels in the general Chinese populations. The present study was undertaken to detect the associations between rs5888 SNP and the risk of coronary artery disease (CAD) and ischemic stroke (IS). METHODS A total of 1,716 unrelated subjects (CAD, 601; IS, 533; and healthy controls, 582) were included in this study. Genotyping of the rs5888 SNP were determined by polymerase chain reaction and restriction fragment length polymorphism. RESULTS The genotypic frequencies of SCARB1 rs5888 SNP were different between CAD patients and controls, the subjects with TT genotype had high risk of CAD (OR = 1.76, P = 0.038 for TT vs. CC; and OR = 1.75, P = 0.036 for TT vs. CC/CT). There was no significant association between genotypes and the risk of IS. Further analysis showed that the subjects with TT genotype in the total population had lower levels of high-density lipoprotein cholesterol than the subjects with CC/CT genotypes (P < 0.05), the subjects with TT genotype in controls but not in CAD or IS patients had higher levels of serum LDL-C and ApoB than those with CC genotype (P < 0.05 for each). CONCLUSIONS The present study suggests that the SCARB1 rs5888 SNP influences serum lipid levels, and is associated with the risk of CAD.
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Affiliation(s)
- Dong-Feng Wu
- 1. Department of Cardiology, Institute of Cardiovascular Diseases, the First Affiliated Hospital, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, People's Republic of China
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