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Williams PT. Quantile-specific heritability of monocyte chemoattractant protein-1, and relevance to rs1024611-disease interactions. Cytokine 2021; 149:155722. [PMID: 34624603 PMCID: PMC10124179 DOI: 10.1016/j.cyto.2021.155722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Monocyte chemoattractant protein-1 (MCP-1) concentrations are 34% to 47% heritable. Larger -2518 G/A (rs1024611) genotypes differences are reported for: 1) MCP-1 production in stimulated vs. basal cells; and 2) MCP-1 concentrations in diseased (sepsis, brain abscess, hepatitis B virus, Alzheimer's disease, Behcet's disease, and systemic lupus erythematosus) vs. healthy patients. Those results suggest that the -2518 G/A effect size may depend on whether the phenotype is high or low relative to its distribution (quantile-dependent expressivity). METHOD To test whether quantile-dependent expressivity applies more broadly to genetic influences on MCP-1 concentrations, quantile-specific offspring-parent (βOP) and full-sib regression slopes (βFS) were estimated by applying quantile regression to the age- and sex-adjusted serum MCP-1 concentrations of Framingham Heart Study families. Quantile-specific heritabilities were calculated as h2 = 2βOP/(1 + rspouse) and h2={(1 + 8rspouseβFS)0.5-1}/(2rspouse)). RESULTS Heritability (h2 ± SE) of MCP-1 concentrations increased from 0.15 ± 0.05 at the 10th percentile of the MCP-1 distribution, 0.23 ± 0.04 at the 25th, 0.32 ± 0.05 at the 50th, 0.43 ± 0.07 at the 75th, and 0.44 ± 0.07 at the 90th percentile, or an 0.0041 ± 0.0009 increase for each one-percent increment in the MCP-1 distribution (Plinear trend = 2.4 × 10-5) when estimated from βOP, and (Plinear trend = 7.7 × 10-9) when estimated from βFS. Compared to the 10th percentile, βOP-estimated h2 was 3-fold greater at the 90th percentile (Pdifference = 0.0003), and 6.9-fold greater when estimated from βFS (Pdifference = 3.3 × 10-6). Re-analysis of in vivo comparison of MCP-1 concentrations in controls vs. patients with MCP-1-elevating conditions, and in vitro studies of MCP-1 production in basal vs. stimulated cells, show rs1024611 genotypes differences that were consistent with quantile-dependent expressivity. CONCLUSION The heritability of circulating MCP-1 concentrations is quantile-dependent.
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Affiliation(s)
- Paul T Williams
- Lawrence Berkeley National Laboratory, Molecular Biophysics & Integrated Bioimaging Division, 1 Cyclotron Road, Berkeley, CA 94720, United States.
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Lin C, Wang Z, Shen L, Yi G, Li M, Li D. Genetic Variants, Circulating Level of MCP1 with Risk of Chronic Obstructive Pulmonary Disease: A Case-Control Study. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2021; 14:561-567. [PMID: 34007204 PMCID: PMC8124012 DOI: 10.2147/pgpm.s303799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/16/2021] [Indexed: 01/19/2023]
Abstract
Background Chronic obstructive pulmonary disease (COPD) ranks one of the major causes of mortality worldwide. Inflammation is greatly involved in the pathogenesis of COPD. Monocyte chemoattractant protein-1 (MCP1) has been implicated to play an important role in the inflammatory response of various pathological processes. Methods In this study, we conducted a hospital-based case-control study in a Chinese population, aiming to evaluate the potential associations of genetic polymorphisms of the MCP1 gene (rs1024611, rs2857656, and rs4586) and circulating level of MCP1 with COPD risk. Results We found that rs1024611 (OR=1.37; 95% CI=1.11–1.69; P-value=0.004) and rs4586 (OR=1.33; 95% CI=1.09–1.63; P-value=0.006) were significantly associated with increased COPD risk. In the dominant model, both rs1024611 (OR=1.46; 95% CI=1.11–1.92; P-value=0.006) and rs4586 (OR=1.56; 95% CI=1.18–2.07; P-value=0.002) were significantly associated with increased COPD risk. Genotypes of rs1024611 and rs4586 with minor alleles had a significantly higher circulating level of MCP1 (P<0.001). Meanwhile, a circulating level of MCP1 was significantly associated with increased COPD risk (OR for per quartile increment=1.35, 95% CI=1.21–1.52, P<0.001). Conclusion Our study indicated that genetic polymorphisms of the MCP1 gene and circulating level of MCP1 contributed to the COPD risk in the Chinese population. MCP1 contributed importantly to the pathophysiological process and occurrence of COPD.
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Affiliation(s)
- Chunyi Lin
- Respiratory Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Zhimin Wang
- Intensive Care Unit (ICU), The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Lu Shen
- Respiratory Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Gao Yi
- Respiratory Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Meichan Li
- Respiratory Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
| | - Defu Li
- Respiratory Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, People's Republic of China
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Shan C, Ma T, Wang TT, Wu L, Abasijiang A, Zhao J. Association of Polymorphism in IL-18 Gene with Periodontitis in Uyghur Adults in Xinjiang and Evidence from Six Case-Control Studies with a Comprehensive Analysis. Immunol Invest 2020; 51:511-530. [PMID: 33143466 DOI: 10.1080/08820139.2020.1841222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AIM The aim of the study was to evaluate the association of IL-18 137 G > C, 607 C > A gene polymorphism in Uyghur population with chronic periodontitis (CP) and combine the results with the meta-analysis. METHODS In a case-control study, 200 cases with CP and 100 healthy controls were recruited; IL-18 137 G > C, 607 C > A genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). In the meta-analysis, we used electronic databases, including CNKI, Wan Fang, PubMed, EMBASE databases etc.to obtain relevant research published through June 2020. Studies were considered eligible if odds ratios (ORs) and 95% confidence intervals (95% CI) were provided or calculated from the given data. The size of the combined effect was calculated using STATA 15.0. RESULTS Our study revealed significant association between CP and IL-18 137 G > C (P = .045, OR = 1.67), 607 C > A (P = .045, OR = 1.67). The overall meta-analysis revealed significant associations between IL-18 137 G > C polymorphism and CP risk in Allele, dominant, co-dominant and recessive genetic models. The subgroup analysis also showed a significant association between the IL-18 137 G > C and risk for periodontitis and aggressive periodontitis in the Asian (GC+ CC VS. GG: P = .047, OR = 1.64,95%CI = 1.01-2.68). CONCLUSIONS IL-18 137 G > C, 607 C > A could be associated with susceptibility to periodontitis in Uyghur population. Further case-control of candidate genes studies targeting larger sample sizes and different ethnic groups are needed to arrive more accurate conclusions.
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Affiliation(s)
- Chao Shan
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China
| | - Ting Ma
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
| | - Ting Ting Wang
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China
| | - Long Wu
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
| | - Aisaiti Abasijiang
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
| | - Jin Zhao
- Department of dentistry, Xinjiang Medical University, Ürümqi, China.,Department of Endodontics, First Affiliated Hospital of Xin Jiang Medical University and College of Stomatology of Xin Jiang Medical University, Ürümqi, China.,Department of Endodontics, Xinjiang Uygur Autonomous Region Institute of Stomatology, Ürümqi, China
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Chen Z, Yin S, Zheng L, Tang W, Kang M, Wei W, Sui K. Relationship between the Monocyte Chemo-attractant Protein-1 gene rs1024611 A>G Polymorphism and Cancer Susceptibility: A Meta-analysis Involving 14,617 Subjects. Immunol Invest 2020; 50:461-477. [PMID: 32552226 DOI: 10.1080/08820139.2020.1776726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Inflammatory and inducible chemokines are the hallmarks of malignancy. Monocyte chemo-attractant protein-1 (MCP-1) is a crucial chemokine implicated in infection and inflammation. Methods: We performed an updated meta-analysis of thirty independent case-control studies with 6,777 cancer cases and 7,840 controls to determine if the MCP-1 gene rs1024611 A > G variant is associated with the risk of cancer. Results: The G allele carriers of rs1024611 in the MCP-1 gene might have a null association with cancer risk in overall comparison. In a subgroup analysis by ethnicity, we identified a marked association between the MCP-1 G allele rs1024611 polymorphism and cancer risk in the Caucasian populations (GG vs. AA: OR = 1.72, 95% CI, 1.12-2.64, P = .013, and GG vs. AG/AA: OR = 1.82, 95% CI, 1.19-2.78, P = .006). The potential bias in literature selection was witnessed in this meta-analysis (G vs. A: P Begg's = 0.187, PEgger's = 0.049; and GG/GA vs. AA: P Begg's = 0.069, PEgger's = 0.024). The adjusted ORs and CIs of the nonparametric "trim-and-fill" method demonstrated the reliability of these findings. The outcome of heterogeneity analysis indicated that heterogeneity might be due to small sample sizes (<1000 subjects), cancer types (bladder cancer, other cancers), ethnicity (Asians), and population-based studies. However, the sensitivity analysis validated the reliability of the findings. Conclusion: In conclusion, this updated meta-analysis showed that the G carrier of the MCP-1 gene rs1024611 is associated with susceptibility to cancer in Caucasian.
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Affiliation(s)
- Zhan Chen
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
| | - Shiping Yin
- Physical Examination Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Liang Zheng
- Department of Thoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province, China
| | - Weifeng Tang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
| | - Mingqiang Kang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian Province, China.,Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Wei Wei
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
| | - Kang Sui
- Department of Cardiothoracic Surgery, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, China
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