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Zhang Q, Bin S, Budge K, Petrosyan A, Villani V, Aguiari P, Vink C, Wetzels J, Soloyan H, La Manna G, Podestà MA, Molinari P, Sedrakyan S, Lemley KV, De Filippo RE, Perin L, Cravedi P, Da Sacco S. C3aR-initiated signaling is a critical mechanism of podocyte injury in membranous nephropathy. JCI Insight 2024; 9:e172976. [PMID: 38227377 PMCID: PMC11143932 DOI: 10.1172/jci.insight.172976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 01/11/2024] [Indexed: 01/17/2024] Open
Abstract
The deposition of antipodocyte autoantibodies in the glomerular subepithelial space induces primary membranous nephropathy (MN), the leading cause of nephrotic syndrome worldwide. Taking advantage of the glomerulus-on-a-chip system, we modeled human primary MN induced by anti-PLA2R antibodies. Here we show that exposure of primary human podocytes expressing PLA2R to MN serum results in IgG deposition and complement activation on their surface, leading to loss of the chip permselectivity to albumin. C3a receptor (C3aR) antagonists as well as C3AR gene silencing in podocytes reduced oxidative stress induced by MN serum and prevented albumin leakage. In contrast, inhibition of the formation of the membrane-attack-complex (MAC), previously thought to play a major role in MN pathogenesis, did not affect permselectivity to albumin. In addition, treatment with a C3aR antagonist effectively prevented proteinuria in a mouse model of MN, substantiating the chip findings. In conclusion, using a combination of pathophysiologically relevant in vitro and in vivo models, we established that C3a/C3aR signaling plays a critical role in complement-mediated MN pathogenesis, indicating an alternative therapeutic target for MN.
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Affiliation(s)
- Qi Zhang
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
| | - Sofia Bin
- Translational Transplant Research Center and Renal Division, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS - Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Kelly Budge
- Translational Transplant Research Center and Renal Division, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Astgik Petrosyan
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Valentina Villani
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
| | - Paola Aguiari
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
| | - Coralien Vink
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jack Wetzels
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hasmik Soloyan
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
| | - Gaetano La Manna
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS - Azienda Ospedaliero-Universitaria di Bologna, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Manuel Alfredo Podestà
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Paolo Molinari
- Translational Transplant Research Center and Renal Division, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Sargis Sedrakyan
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Kevin V. Lemley
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Roger E. De Filippo
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Laura Perin
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Paolo Cravedi
- Translational Transplant Research Center and Renal Division, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stefano Da Sacco
- GOFARR Laboratory for Organ Regenerative Research and Cell Therapeutics in Urology, Saban Research Institute, Division of Urology, Children’s Hospital Los Angeles (CHLA), Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Boughriba R, Sahraoui G, Chaar I, Weslati M, Ayed K, Ounissi D, Hazgui M, Bouraoui S, Gati A. Significant association of MCP1 rs1024611 and CCR2 rs1799864 polymorphisms with colorectal cancer and liver metastases susceptibility and aggressiveness: A case-control study. Cytokine 2023; 167:156193. [PMID: 37149962 DOI: 10.1016/j.cyto.2023.156193] [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: 04/13/2022] [Revised: 02/07/2023] [Accepted: 03/26/2023] [Indexed: 05/09/2023]
Abstract
BACKGROUND The MCP-1/CCR2 axis is one of the major chemokine signaling pathways that play a crucial role in the tumor microenvironment and has been involved in triggering various tumor progression mechanisms, such as increasing the immunosuppressive cells recruitment and promoting tumor cell proliferation and invasiveness. AIM The current study investigated the association of MCP1 (rs1024611) and CCR2 (rs1799864) genes variants with the risk as well as prognosis of colorectal cancer (CRC) and colorectal liver metastases (CRLM). SUBJECTS AND METHODS A retrospective cohort study involved 408 patients (284 CRC and 124 CRLM), and 284 healthy control was conducted. Genotyping of selected polymorphisms was performed by PCR-RFLP assays and confirmed by microchip and capillary electrophoresis. RESULTS The results highlighted a positive association between MCP1 rs1024611 (non-AA) and CCR2 rs1799864 (GA) genotypes with increased CRC and CRLM risk. Correlation between SNPs and clinicopathological characteristics revealed a positive association between MCP1 rs1024611 and CCR2 rs1799864 (dominant model) and CRC poor prognosis features. Kaplan-Meier survival analysis revealed a significant association between MCP1 rs1024611 non-AA carriers and decreased survival rate. Neoadjuvant treatment showed an improvement in CRC and CRLM survival rates among carriers of MCP1 and CCR2 wild-type genotype. FOLFIRI chemotherapy exhibits reduced survival rates for patients who carried mutated genotypes of MCP1 and CCR2 polymorphisms. CONCLUSION Considering our results, we suggest That both MCP1 and CCR2 polymorphisms may constitute independent factors for CRC and CRLM occurrence and can be helpful targets for an efficient therapeutic approach.
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Affiliation(s)
- Rahma Boughriba
- Laboratory of Genetic, Immunology and Human Pathology, Faculty of Sciences of Tunis, University of Tunis El Manar (UTM), 2092 Tunis, Tunisia; Unit of Colorectal Cancer Research UR12SP14, Mongi Slim Hospital, Sidi Daoud, La Marsa, 2046 Tunis, Tunisia
| | - Ghada Sahraoui
- Department of Pathological Anatomy and Cytology of Salah Azaiez Oncology Institute, Bab Saadoun 1029 Tunis, Tunisia; Medical School of Tunis, University of Tunis El Manar, 15 rue Djebel Lakhdhar, La Rabta, 1007 Tunis, Tunisia
| | - Ines Chaar
- Unit of Colorectal Cancer Research UR12SP14, Mongi Slim Hospital, Sidi Daoud, La Marsa, 2046 Tunis, Tunisia
| | - Marwa Weslati
- Unit of Colorectal Cancer Research UR12SP14, Mongi Slim Hospital, Sidi Daoud, La Marsa, 2046 Tunis, Tunisia
| | - Khouloud Ayed
- Laboratory of Genetic, Immunology and Human Pathology, Faculty of Sciences of Tunis, University of Tunis El Manar (UTM), 2092 Tunis, Tunisia
| | - Donia Ounissi
- Unit of Colorectal Cancer Research UR12SP14, Mongi Slim Hospital, Sidi Daoud, La Marsa, 2046 Tunis, Tunisia
| | - Mariem Hazgui
- Unit of Colorectal Cancer Research UR12SP14, Mongi Slim Hospital, Sidi Daoud, La Marsa, 2046 Tunis, Tunisia
| | - Saadia Bouraoui
- Unit of Colorectal Cancer Research UR12SP14, Mongi Slim Hospital, Sidi Daoud, La Marsa, 2046 Tunis, Tunisia; Medical School of Tunis, University of Tunis El Manar, 15 rue Djebel Lakhdhar, La Rabta, 1007 Tunis, Tunisia
| | - Asma Gati
- Laboratory of Genetic, Immunology and Human Pathology, Faculty of Sciences of Tunis, University of Tunis El Manar (UTM), 2092 Tunis, Tunisia.
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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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Protective Effect of the MCP-1 Gene Haplotype against Schizophrenia. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4042615. [PMID: 31886209 PMCID: PMC6925699 DOI: 10.1155/2019/4042615] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/28/2019] [Accepted: 11/15/2019] [Indexed: 12/24/2022]
Abstract
While cytokines and their genetic variants have been intensively studied in schizophrenia, little attention has been focused on chemokines in the last years. The monocyte chemoattractant protein 1 (MCP-1) is known to attract peripheral monocytes to the brain during an inflammatory reaction and to affect the T helper (Th) cell development by stimulating Th2 polarization. Owing to the neuroinflammation in schizophrenia and the variable level of MCP-1 in these patients' sera, we proposed to analyze the impact of functional genetic variants of the MCP-1 gene (MCP-1-2518A/G (rs1024611), MCP-1-362G/C (rs2857656), and MCP-1 int1del554-567 (rs3917887)) in schizophrenic patients. We conducted a case-control study on a Tunisian population composed of 200 patients and 200 controls using RFLP-PCR. Our results indicated that the minor alleles (-2518G and Del554-567) were significantly more prevalent in controls than in patients (P=0.001/adjusted OR = 0.42, P=0.04/adjusted OR = 0.64), whereas, for -362C minor allele, increased risk of schizophrenia was revealed (P=0.001, adjusted OR = 2.38). In conclusion, we have identified the haplotype combination -2581G/-362G/int1del554-567 that could mediate protection against schizophrenia (P=0.0038, OR = 0.19) and the effect could result more strongly from the MCP-1 -2582G with -362G variants, whereas the effect of int1del554-567 may in part be explained by its LD with -362.
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He J, Chen Y, Lin Y, Zhang W, Cai Y, Chen F, Liao Q, Yin Z, Wang Y, Tao S, Lin X, Huang P, Cui L, Shao Y. Association study of MCP-1 promoter polymorphisms with the susceptibility and progression of sepsis. PLoS One 2017; 12:e0176781. [PMID: 28472164 PMCID: PMC5417587 DOI: 10.1371/journal.pone.0176781] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 04/17/2017] [Indexed: 12/17/2022] Open
Abstract
Previous studies have indicated that the monocyte chemo-attractant protein 1 (MCP-1), also referred to as C-C motif chemokine ligand 2 (CCL2), plays a significant role in the pathogenesis of sepsis, and this study investigated the clinical relevance of two MCP-1 gene polymorphisms on sepsis onset and progression. The Multiplex SNaPshot genotyping method was used to detect MCP-1 gene polymorphisms in the Chinese Han population (403 sepsis patients and 400 controls). MCP-1 mRNA expression levels were measured using real-time quantitative PCR, and enzyme-linked immunosorbent assays were used to analyze MCP-1, tumor necrosis factor-alpha (TNF-α), interleukin 6 (IL-6) and interleukin-1 beta (IL-1β) plasma concentrations. The rs1024611 polymorphism analysis showed lower frequencies of minor homozygous genotype (AA) and allele (A) in sepsis patients compared to the healthy controls (19.4% vs. 31.5%, P = 0.0001 and 45.9% vs. 54.8%, P = 0.0004, respectively). And the frequencies of GG genotype and G allele were lower in sepsis patients compared to the controls (19.6% vs. 31.3%, P = 0.0002 and 46.0% vs. 54.5%, P = 0.0007, respectively). The rs1024611 AG/GG and rs2857656 GC/CC genotypes were both overrepresented in patients with severe sepsis (both P = 0.0005) and septic shock (P = 0.010 and P = 0.015, respectively) compared to the patients with mild sepsis. Moreover, among sepsis patients, the rs1024611 AG/GG and rs2857656 GC/CC carriers exhibited significant increases in expression levels of MCP-1 (P = 0.025), TNF-α (P = 0.034) and IL-6 (P = 0.043) compared with the rs1024611 AA or rs2857656 GG carriers. This study provides valuable clinical evidence that the MCP-1/CCL2 polymorphisms rs1024611 and rs2857656 are associated with sepsis susceptibility and development. We conclude that MCP-1/CCL2 plays a significant role in the pathogenesis of sepsis, which has potentially important therapeutic implications.
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Affiliation(s)
- Junbing He
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yuhua Chen
- The Department of Endocrinology and Metabolism, Longgang District People's Hospital of Shenzhen, Shenzhen, Guangdong, China
| | - Yao Lin
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Wenying Zhang
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yujie Cai
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Feng Chen
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Qinghui Liao
- The Department of Endocrinology and Metabolism, Longgang District People's Hospital of Shenzhen, Shenzhen, Guangdong, China
| | - Zihan Yin
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yan Wang
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Shoubao Tao
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xiaoli Lin
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Pengru Huang
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lili Cui
- Institute of Neurology, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
- * E-mail: (LC); (YS)
| | - Yiming Shao
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
- * E-mail: (LC); (YS)
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-2518 A/G MCP-1 but not -403 G/A RANTES gene polymorphism is associated with enhanced risk of basal cell carcinoma. Postepy Dermatol Alergol 2016; 33:381-385. [PMID: 27881944 PMCID: PMC5110628 DOI: 10.5114/ada.2016.62846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/18/2015] [Indexed: 12/24/2022] Open
Abstract
Introduction Polymorphic variants of MCP-1 and RANTES genes and their protein serum levels have been implicated in the increased risk and severity of several malignancies. However, the subject has not been explored in basal cell carcinoma (BCC) patients so far. Aim To investigate the association between monocyte chemoattractant protein 1 (MCP-1) (–2518 A/G) and RANTES (–403 G/A) polymorphism and risk and clinical course of BCC. Material and methods The study group consisted of 150 unrelated patients with BCC and 140 healthy, unrelated, age- and sex-matched volunteers. The polymorphisms were analysed using the amplification refractory mutation system polymerase chain reaction method (ARMS-PCR) and single specific primer-polymerase chain reaction (SSP-PCR). Serum cytokine levels were measured with ELISA. Results The presence of the MCP-1 –2518 GG genotype was statistically more frequent in BCC patients and it increased the risk of BCC (OR = 2.63, p = 0.003). Genotype –330 GG was statistically more common in patients with less advanced tumours (OR = 2.8, p = 0.017). Monocyte chemoattractant protein 1 serum level was statistically higher with GG genotype. In the BCC group MCP-1 serum levels were decreased. Neither polymorphic variants of RANTES nor the chemokine serum concentration differed significantly between the study groups. Conclusions These findings suggest that –2518 A/G MCP-1 polymorphism may be involved in BCC pathogenesis.
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Sambyal V, Guleria K, Kapahi R, Manjari M, Sudan M, Uppal MS, Singh NR. Association of the -2518 A/G Polymorphism of MCP-1 with Breast Cancer in Punjab, North-West India. Asian Pac J Cancer Prev 2015; 16:7243-8. [DOI: 10.7314/apjcp.2015.16.16.7243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Zeng XT, Liu DY, Kwong JSW, Leng WD, Xia LY, Mao M. Meta-Analysis of Association Between Interleukin-1β C-511T Polymorphism and Chronic Periodontitis Susceptibility. J Periodontol 2015; 86:812-9. [DOI: 10.1902/jop.2015.140698] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Lin C, Chu CM, Lin J, Yang HY, Su SL. Gene-gene and gene-environment interactions in meta-analysis of genetic association studies. PLoS One 2015; 10:e0124967. [PMID: 25923960 PMCID: PMC4414456 DOI: 10.1371/journal.pone.0124967] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 03/19/2015] [Indexed: 01/10/2023] Open
Abstract
Extensive genetic studies have identified a large number of causal genetic variations in many human phenotypes; however, these could not completely explain heritability in complex diseases. Some researchers have proposed that the “missing heritability” may be attributable to gene–gene and gene–environment interactions. Because there are billions of potential interaction combinations, the statistical power of a single study is often ineffective in detecting these interactions. Meta-analysis is a common method of increasing detection power; however, accessing individual data could be difficult. This study presents a simple method that employs aggregated summary values from a “case” group to detect these specific interactions that based on rare disease and independence assumptions. However, these assumptions, particularly the rare disease assumption, may be violated in real situations; therefore, this study further investigated the robustness of our proposed method when it violates the assumptions. In conclusion, we observed that the rare disease assumption is relatively nonessential, whereas the independence assumption is an essential component. Because single nucleotide polymorphisms (SNPs) are often unrelated to environmental factors and SNPs on other chromosomes, researchers should use this method to investigate gene–gene and gene–environment interactions when they are unable to obtain detailed individual patient data.
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Affiliation(s)
- Chin Lin
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chi-Ming Chu
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, ROC
| | - John Lin
- Math Teachers' Office, Kaohsiung Municipal Girls' Senior High School, Kaohsiung, Taiwan, ROC
| | - Hsin-Yi Yang
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Sui-Lung Su
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; School of Public Health, National Defense Medical Center, Taipei, Taiwan, ROC
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Cheng DY, Hao YW, Zhou WL, Ma YR. E-selectin S128R polymorphism is associated with cancer risk: a meta-analysis. Asian Pac J Cancer Prev 2014; 15:3247-52. [PMID: 24815478 DOI: 10.7314/apjcp.2014.15.7.3247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Genetic factors have been shown to play an important role in the development of cancers. However, individual studies may fail to completely demonstrate complicated genetic relationships because of small sample size. Therefore, we performed a meta-analysis to evaluate the association of E-selectin Ser128Arg (S128R) with cancer risk. MATERIALS AND METHODS A literature search in PubMed, Embase, Web of Science, Science Direct, SpringerLink, EBSCO, Wanfang, and Chinese National Knowledge Infrastructure databases was carried out to identify studies of the association between E-selectin S128R polymorphism and cancer risk. The odds ratio (OR) with 95% confidence intervals (95%CIs) were used to assess the strength of association. RESULTS A total of eight studies involving 1,675 cancer cases and 2,285 controls were included in the meta-analysis. In overall populations, S128R polymorphism seemed to be associated with cancer risk (Arg allele vs Ser allele: OR=1.65, 95%CI =1.33-2.04, p<0.01; Arg/Arg+Arg/Ser vs Ser/Ser: OR=1.87, 95%CI =1.48-2.36, p<0.01; Arg/Ser vs Ser/Ser: OR=1.80, 95%CI =1.51-2.14, p<0.01). Similarly, subgroup analysis by ethnicity and source of control also revealed that this polymorphism was related to cancer risk. CONCLUSIONS Our meta-analysis revealed that there was association between the E-selectin S128R polymorphism and the risk of cancer. Further large and well-designed studies are needed to confirm this association.
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Affiliation(s)
- Da-Ye Cheng
- Department of Transfusion, The First Hospital of China Medical University, Shenyang, China E-mail :
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