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Du X, Shi H, Liu X, Wang Y, Du T, Wang P, Cheng L, Zhu J, Li F. Genetic support for the causal association between 91 circulating inflammatory proteins and atopic dermatitis: A two-sample Mendelian randomization trial. Skin Res Technol 2024; 30:e13872. [PMID: 39081133 PMCID: PMC11289424 DOI: 10.1111/srt.13872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 06/24/2024] [Indexed: 08/03/2024]
Abstract
BACKGROUND Atopic dermatitis (AD) is a refractory disease that occurs in clinical practice. One of the most common inflammatory skin diseases, its occurrence and development are related to inflammation. Nevertheless, the precise nature of the relationship between circulating inflammatory proteins and AD remains uncertain. METHODS A two-sample MR analysis was performed to determine the causal relationship between the expression of 91 circulating inflammatory proteins and AD by using genome-wide association study (GWAS) summary statistics data from the FinnGen consortia. The robustness of the MR results was assessed by means of sensitivity analysis. RESULTS The causal relationship between the expression of nine specific circulating inflammatory proteins and AD was corroborated by the inverse variance weighted (IVW) method. The findings indicated that three circulating inflammatory proteins, namely, interleukin-18 receptor 1 [OR (CI) = 1.08 (1.05-1.11); p = 0.000001)], interleukin-8 [OR (CI) = 1.07 (1.00-1.14); p = 0.036244)], and tumor necrosis factor ligand superfamily member 14 [OR (CI) = 1.05 (1.00-1.10); p = 0.036842)], were positively correlated with AD. Additionally, six circulating inflammatory proteins were negatively correlated with AD: the T-cell surface glycoprotein CD5 [OR (CI) = 0.89 (0.84-0.95); p = 0.000191)], macrophage colony-stimulating factor 1 [OR (CI) = 0.93 (0.88-0.99); p = 0.031422)], fractalkine [OR (CI) = 0.91 (0.85-0.97); p = 0.003067)], interleukin-24 [OR (CI) = 0.91 (0.83-0.99); p = 0.031673)], signaling lymphocytic activation molecule [OR(CI) = 0.94 (0.89-1.00); p = 0.039818)], and urokinase-type plasminogen activator [OR(CI) = 0.95 (0.90-1.00); p = 0.037037)]. CONCLUSION This study confirms the potential causal relationship between circulating inflammatory proteins and AD and provides guidance for the clinical diagnosis and treatment of AD.
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Affiliation(s)
- Xinran Du
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Hongshuo Shi
- Department of Peripheral Vascular SurgeryShuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xin Liu
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yi Wang
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Ting Du
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Peiyao Wang
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Linyan Cheng
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Jianyong Zhu
- Clinical Laboratory Medicine CenterYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Fulun Li
- Department of DermatologyYueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
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Chen Y, Jin X, Wang Q, Hu S, Huang X. Causal role of immune cells in chronic periodontitis: a bidirectional Mendelian randomization study. BMC Oral Health 2024; 24:806. [PMID: 39014403 PMCID: PMC11253491 DOI: 10.1186/s12903-024-04592-0] [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: 12/03/2023] [Accepted: 07/09/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND This study aims to explore the bidirectional causal relationship between immune cell phenotypes and chronic periodontitis using a Mendelian randomization framework. MATERIALS AND METHODS Through a two-sample Mendelian randomization analysis, this research examined genetic data related to 731 immune cell traits and chronic periodontitis. Instrumental variables were chosen based on their genetic links to either immune traits or periodontitis. Various statistical techniques, including MR-Egger regression, weighted median, and inverse-variance weighted (IVW) analysis, were employed to determine the causal connections. RESULTS Predominantly using the IVW method, 26 distinct immune phenotypes were identified as potentially influencing periodontitis (P < 0.05). Conversely, periodontitis potentially affected 33 different immune phenotypes (P < 0.05). The results for pleiotropy and sensitivity tests were stable. However, these associations lost significance after adjusting for the False Discovery Rate. CONCLUSION This study uncovers a complex bidirectional causal relationship between certain immune cell phenotypes and chronic periodontitis, underscoring the intricate interaction between the immune system and the pathogenesis of periodontal disease.
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Affiliation(s)
- Yu Chen
- Department of Stomatology, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, No.N1, Shangcheng Avenue, Yiwu City, Zhejiang Province, 322000, China
| | - Xinyang Jin
- Department of Stomatology, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, No.N1, Shangcheng Avenue, Yiwu City, Zhejiang Province, 322000, China
| | - Qi Wang
- Department of Stomatology, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, No.N1, Shangcheng Avenue, Yiwu City, Zhejiang Province, 322000, China
| | - Sai Hu
- Department of Stomatology, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, No.N1, Shangcheng Avenue, Yiwu City, Zhejiang Province, 322000, China
| | - Xu Huang
- Department of Stomatology, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, No.N1, Shangcheng Avenue, Yiwu City, Zhejiang Province, 322000, China.
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Wang F, Huang G, Luo Y, Xiong K, Liu Y, Wang Y. Causal association of circulating immune cells and lymphoma: A Mendelian randomization study. Open Med (Wars) 2024; 19:20240984. [PMID: 39015296 PMCID: PMC11249620 DOI: 10.1515/med-2024-0984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/27/2024] [Accepted: 05/29/2024] [Indexed: 07/18/2024] Open
Abstract
Background Malignant lymphoma (ML) is a group of malignant tumors originating from the lymphatic hematopoietic system. Previous studies have found a correlation between circulating immune cells and ML. Nonetheless, the precise influence of circulating immune cells on ML remains uncertain. Methods Based on publicly available genetic data, we explored causal associations between 731 immune cell signatures and ML risk. A total of four types of immune signatures, median fluorescence intensities, relative cell, absolute cell, and morphological parameters were included. Primary analysis was performed using inverse variance weighting (IVW) to assess the causal relationship between circulating immune cells and the risk of ML. Sensitivity analysis was conducted using Cochran's Q test, the Mendelian randomization Egger regression intercept test, and leave-one-out analysis. Results ML had a statistically significant effect on immunophenotypes. Twenty-three immunophenotypes were identified to be significantly associated with Hodgkin lymphoma risk through the IVW approach, and the odds ratio values of CD64 on CD14- CD16+ monocyte [2.31, 95% confidence interval (CI) = 1.41-3.79, P1 = 0.001], IgD+ CD24+ B-cell %lymphocyte (2.06, 95% CI = 1.13-3.79, P1 = 0.018), B-cell %lymphocyte (1.94, 95% CI = 1.08-3.50, P1 = 0.027), CD24+ CD27+ B-cell %lymphocyte (1.68, 95% CI = 1.03-2.74, P1 = 0.039), and CD14+ CD16- monocyte %monocyte (1.60, 95% CI = 1.15-2.24, P1 = 0.006) ranked in the top five. Eleven immunophenotypes were identified to be significantly associated with non-Hodgkin lymphoma risk, CD86 on granulocyte (2.35, 95% CI = 1.18-4.69, P1 = 0.015), CD28-CD8+ T-cell absolute count (1.76, 95% CI = 1.03-2.99, P1 = 0.036), CCR2 on myeloid dendritic cell (CD24+ CD27+ B cell, 95% CI = 1.02-1.66, P1 = 0.034), CD3 on effector memory CD8+ T cell (1.29, 95% CI = 1.02-1.64, P1 = 0.012), and natural killer T %lymphocyte (1.28, 95% CI = 1.01-1.62, P1 = 0.046) were ranked in the top five. Conclusion This study presents compelling evidence indicating the correlation between circulating immune cells and lymphoma, thus providing guidance for future clinical research.
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Affiliation(s)
- Feixiang Wang
- Medical Oncology Department, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangdong, Guangzhou, 510095, China
| | - Guoxin Huang
- Department of Evidence-Based Medicine Center, Xiangyang No.1 People’s Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Yuqing Luo
- Medical Oncology Department, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangdong, Guangzhou, 510095, China
| | - Kaixin Xiong
- Medical Oncology Department, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangdong, Guangzhou, 510095, China
| | - Ying Liu
- Department of Evidence-Based Medicine Center, Xiangyang No.1 People’s Hospital, Hubei University of Medicine, No. 15, Jiefang Road, Xiangyang, Hubei, 441000, China
| | - Yao Wang
- Medical Oncology Department, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, No. 78, Hengzhigang, Yuexiu District, Guangdong, Guangzhou, 510095, China
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Gong W, Zhou J, Hou Y, Zhang J, He P, Yu Q. The causal relationship between immune cells mediating FIT3L, CCL4, OSM, and skin-derived deteriorated tumors. Skin Res Technol 2024; 30:e13774. [PMID: 38953214 PMCID: PMC11217673 DOI: 10.1111/srt.13774] [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: 04/30/2024] [Accepted: 05/13/2024] [Indexed: 07/03/2024]
Abstract
OBJECTIVE Observational studies have identified a dual effect of circulating inflammatory proteins and immune cells on cancer progression. However, the specific mechanisms of action have not been clarified in the exacerbation of cutaneous-origin tumors. Therefore, this study aims to investigate whether the causal relationship between circulating inflammatory factors and basal cell carcinoma (BCC), cutaneous malignant melanoma (SKCM), and cutaneous squamous cell carcinoma (cSCC) is regulated by immune cells. METHODS This study employed the Two-Sample Mendelian Randomization (TSMR) approach to investigate the causal relationships between 91 circulating inflammatory factors and three prevalent types of skin cancer from a genetic perspective. Bayesian Weighted Mendelian Randomization (BWMR) was also used to validate correlation and reverse MR to assess inverse relationships. Subsequent sensitivity analyses were conducted to limit the impact of heterogeneity and pleiotropy. Finally, the two-step Mendelian Randomization (two-step MR) method was utilized to ascertain the mediating effects of specific immune cell traits in the causal pathways linking circulating inflammatory factors with BCC, SKCM, and cSCC. RESULTS The Inverse Variance Weighted (IVW) method and the Bayesian Weighted Algorithm collectively identified nine inflammatory factors causally associated with BCC, SKCM, and cSCC. The results from Cochran's Q test, mendelian randomization pleiotropy residual sum and outlier (MR-PRESSO), and MR-Egger intercept were not statistically significant (p < 0.05). Additionally, the proportions mediated by CD4+ CD8dim T cell %leukocyte, CD4-CD8-Natural Killer T %T cell, and CD20 on IgD-CD38-B cell for FIt3L, CCL4, and OSM were 9.26%, 8.96%, and 10.16%, respectively. CONCLUSION Immune cell levels potentially play a role in the modulation process between circulating inflammatory proteins and cutaneous-origin exacerbated tumors. This finding offers a new perspective for the in-depth exploration of cutaneous malignancies.
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Affiliation(s)
- Wanli Gong
- School of ManagementShanxi Medical UniversityJinzhongShanxiChina
- Key Laboratory of Big Data in Clinical Decision ResearchShanxi Medical UniversityTaiyuanShanxiChina
| | - Jiayi Zhou
- Faculty of Arts and Social SciencesUniversity of SydneyBroadwayAustralia
| | - Yaqi Hou
- School of ManagementShanxi Medical UniversityJinzhongShanxiChina
- Key Laboratory of Big Data in Clinical Decision ResearchShanxi Medical UniversityTaiyuanShanxiChina
| | - juan Zhang
- School of ManagementShanxi Medical UniversityJinzhongShanxiChina
- Key Laboratory of Big Data in Clinical Decision ResearchShanxi Medical UniversityTaiyuanShanxiChina
| | - Peifeng He
- Key Laboratory of Big Data in Clinical Decision ResearchShanxi Medical UniversityTaiyuanShanxiChina
| | - Qi Yu
- School of ManagementShanxi Medical UniversityJinzhongShanxiChina
- Key Laboratory of Big Data in Clinical Decision ResearchShanxi Medical UniversityTaiyuanShanxiChina
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Wu P, Xie S, Cai Y, Liu H, Lv Y, Yang Y, He Y, Yin B, Lan T, Wu H. Causality of immune cells on primary sclerosing cholangitis: a bidirectional two-sample Mendelian randomization study. Front Immunol 2024; 15:1395513. [PMID: 39011035 PMCID: PMC11246896 DOI: 10.3389/fimmu.2024.1395513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/04/2024] [Indexed: 07/17/2024] Open
Abstract
Background Observational studies have indicated that immune dysregulation in primary sclerosing cholangitis (PSC) primarily involves intestinal-derived immune cells. However, the causal relationship between peripheral blood immune cells and PSC remains insufficiently understood. Methods A bidirectional two-sample Mendelian randomization (MR) analysis was implemented to determine the causal effect between PBC and 731 immune cells. All datasets were extracted from a publicly available genetic database. The standard inverse variance weighted (IVW) method was selected as the main method for the causality analysis. Cochran's Q statistics and MR-Egger intercept were performed to evaluate heterogeneity and pleiotropy. Results In forward MR analysis, the expression ratios of CD11c on CD62L+ myeloid DC (OR = 1.136, 95% CI = 1.032-1.250, p = 0.009) and CD62L-myeloid DC AC (OR = 1.267, 95% CI = 1.086-1.477, p = 0.003) were correlated with a higher risk of PSC. Each one standard deviation increase of CD28 on resting regulatory T cells (Treg) (OR = 0.724, 95% CI = 0.630-0.833, p < 0.001) and CD3 on secreting Treg (OR = 0.893, 95% CI = 0.823-0.969, p = 0.007) negatively associated with the risk of PSC. In reverse MR analysis, PSC was identified with a genetic causal effect on EM CD8+ T cell AC, CD8+ T cell AC, CD28- CD127- CD25++ CD8+ T cell AC, CD28- CD25++ CD8+ T cell AC, CD28- CD8+ T cell/CD8+ T cell, CD28- CD8+ T cell AC, and CD45 RA- CD28- CD8+ T cell AC. Conclusion Our study indicated the evidence of causal effects between PSC and immune cells, which may provide a potential foundation for future diagnosis and treatment of PSC.
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Affiliation(s)
- Pu Wu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Sinan Xie
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yunshi Cai
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Hu Liu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yinghao Lv
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Yang
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yucheng He
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Bangjie Yin
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Tian Lan
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Wu
- Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
- Liver Transplant Center, Transplant Center, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Hepatic AI Translation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
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Chai WH, Ma Y, Li JJ, Guo F, Wu YZ, Liu JW. Immune cell signatures and causal association with irritable bowel syndrome: A mendelian randomization study. World J Clin Cases 2024; 12:3094-3104. [PMID: 38898868 PMCID: PMC11185378 DOI: 10.12998/wjcc.v12.i17.3094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/10/2024] [Accepted: 04/29/2024] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND The mucosal barrier's immune-brain interactions, pivotal for neural development and function, are increasingly recognized for their potential causal and therapeutic relevance to irritable bowel syndrome (IBS). Prior studies linking immune inflammation with IBS have been inconsistent. To further elucidate this relationship, we conducted a Mendelian randomization (MR) analysis of 731 immune cell markers to dissect the influence of various immune phenotypes on IBS. Our goal was to deepen our understanding of the disrupted brain-gut axis in IBS and to identify novel therapeutic targets. AIM To leverage publicly available data to perform MR analysis on 731 immune cell markers and explore their impact on IBS. We aimed to uncover immunophenotypic associations with IBS that could inform future drug development and therapeutic strategies. METHODS We performed a comprehensive two-sample MR analysis to evaluate the causal relationship between immune cell markers and IBS. By utilizing genetic data from public databases, we examined the causal associations between 731 immune cell markers, encompassing median fluorescence intensity, relative cell abundance, absolute cell count, and morphological parameters, with IBS susceptibility. Sensitivity analyses were conducted to validate our findings and address potential heterogeneity and pleiotropy. RESULTS Bidirectional false discovery rate correction indicated no significant influence of IBS on immunophenotypes. However, our analysis revealed a causal impact of IBS on 30 out of 731 immune phenotypes (P < 0.05). Nine immune phenotypes demonstrated a protective effect against IBS [inverse variance weighting (IVW) < 0.05, odd ratio (OR) < 1], while 21 others were associated with an increased risk of IBS onset (IVW ≥ 0.05, OR ≥ 1). CONCLUSION Our findings underscore a substantial genetic correlation between immune cell phenotypes and IBS, providing valuable insights into the pathophysiology of the condition. These results pave the way for the development of more precise biomarkers and targeted therapies for IBS. Furthermore, this research enriches our comprehension of immune cell roles in IBS pathogenesis, offering a foundation for more effective, personalized treatment approaches. These advancements hold promise for improving IBS patient quality of life and reducing the disease burden on individuals and their families.
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Affiliation(s)
- Wei-Hao Chai
- Department of Graduate School, Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
| | - Yan Ma
- Department of Anesthesiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
| | - Jia-Jia Li
- Key Laboratory of Special Environmental Medicine of Xinjiang, General Hospital of Xinjiang Military Command of the PLA, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
| | - Fei Guo
- Department of Emergency Trauma Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
| | - Yi-Zhan Wu
- Department of Graduate School, Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
| | - Jiang-Wei Liu
- Key Laboratory of Special Environmental Medicine of Xinjiang, General Hospital of Xinjiang Military Command of the PLA, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
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Jiang C, Lin J, Xie B, Peng M, Dai Z, Mai S, Chen Q. Causal association between circulating blood cell traits and pulmonary embolism: a mendelian randomization study. Thromb J 2024; 22:49. [PMID: 38863024 PMCID: PMC11167760 DOI: 10.1186/s12959-024-00618-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/31/2024] [Indexed: 06/13/2024] Open
Abstract
BACKGROUND Pulmonary embolism (PE) is a life-threatening thromboembolic disease for which there is limited evidence for effective prevention and treatment. Our goal was to determine whether genetically predicted circulating blood cell traits could influence the incidence of PE. METHODS Using single variable Mendelian randomization (SVMR) and multivariate Mendelian randomization (MVMR) analyses, we identified genetic associations between circulating blood cell counts and lymphocyte subsets and PE. GWAS blood cell characterization summary statistics were compiled from the Blood Cell Consortium. The lymphocyte subpopulation counts were extracted from summary GWAS statistics for samples from 3757 individuals that had been analyzed by flow cytometry. GWAS data related to PE were obtained from the FinnGen study. RESULTS According to the SVMR and reverse MR, increased levels of circulating white blood cells (odds ratio [OR]: 0.88, 95% confidence interval [CI]: 0.81-0.95, p = 0.0079), lymphocytes (OR: 0.90, 95% CI: 0.84-0.97, p = 0.0115), and neutrophils (OR: 0.88, 95% CI: 0.81-0.96, p = 0.0108) were causally associated with PE susceptibility. MVMR analysis revealed that lower circulating lymphocyte counts (OR: 0.84, 95% CI: 0.75-0.94, p = 0.0139) were an independent predictor of PE. According to further MR results, this association may be primarily related to HLA-DR+ natural killer (NK) cells. CONCLUSIONS Among European populations, there is a causal association between genetically predicted low circulating lymphocyte counts, particularly low HLA-DR+ NK cells, and an increased risk of PE. This finding supports observational studies that link peripheral blood cells to PE and provides recommendations for predicting and preventing this condition.
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Affiliation(s)
- Chen Jiang
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jianing Lin
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Bin Xie
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Meijuan Peng
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Ziyu Dai
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Suyin Mai
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Qiong Chen
- Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China.
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Jue H, Dan-fei C, Fang-fang L, Ke-pin Y, Jia-ye X, Hui-ting Z, Xiao-bo X, Jian C. Evaluating the link between immune characteristics and attention deficit hyperactivity disorder through a bi-directional Mendelian randomization study. Front Immunol 2024; 15:1367418. [PMID: 38903512 PMCID: PMC11188446 DOI: 10.3389/fimmu.2024.1367418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/15/2024] [Indexed: 06/22/2024] Open
Abstract
Context Despite the recognition of attention deficit hyperactivity disorder (ADHD) as a multifaceted neurodevelopmental disorder, its core causes are still ambiguous. The objective of this study was to explore if the traits of circulating immune cells contribute causally to susceptibility to ADHD. Methods By employing a unified GWAS summary data covering 731 immune traits from the GWAS Catalog (accession numbers from GCST0001391 to GCST0002121), our analysis focused on the flow cytometry of lymphocyte clusters, encompassing 3,757 Sardinians, to identify genetically expected immune cells. Furthermore, we obtained summarized GWAS statistics from the Psychiatric Genomics Consortium to evaluate the genetic forecasting of ADHD. The studies employed ADHD2019 (20,183 cases and 35,191 controls from the 2019 GWAS ADHD dataset) and ADHD2022 (38,691 cases and 275,986 controls from the 2022 GWAS ADHD dataset). Through the examination of genome-wide association signals, we identified shared genetic variances between circulating immune cells and ADHD, employing the comprehensive ADHD2022 dataset. We primarily utilized inverse variance weighted (IVW) and weighted median methods in our Mendelian randomization research and sensitivity assessments to evaluate diversity and pleiotropy. Results After adjusting for false discovery rate (FDR), three distinct immunophenotypes were identified as associated with the risk of ADHD: CD33 in Im MDSC (OR=1.03, CI: 1.01~1.04, P=3.04×10-5, PFDR =0.015), CD8br NKT %T cell (OR=1.08, 95%CI: 1.04~1.12, P=9.33×10-5, PFDR =0.023), and CD8br NKT %lymphocyte (OR=1.08, 95%CI: 1.03~1.12, P=3.59×10-4, PFDR =0.066). Furthermore, ADHD showed no statistical effects on immunophenotypes. It's worth noting that 20 phenotypes exist where ADHD's appearance could diminish 85% of immune cells, including FSC-A in myeloid DC (β= -0.278, 95% CI: 0.616~0.931, P=0.008), CD3 in CD45RA- CD4+ (β= -0.233, 95% CI: 0.654~0.960, P=0.017), CD62L- monocyte AC (β=0.227, 95% CI: 0.038~1.518, P=0.019), CD33 in CD33br HLA DR+ CD14dim (β= -0.331, 95% CI: 0.543~0.950, P=0.020), and CD25 in CD39+ resting Treg (β=0.226, 95% CI: 1.522, P=0.022), and FSC-A in monocytes (β= -0.255, 95% CI: 0.621~0.967, P=0.234), among others. Conclusion Studies indicate that the immune system's response influences the emergence of ADHD. The findings greatly improve our understanding of the interplay between immune responses and ADHD risk, aiding in the development of treatment strategies from an immunological perspective.
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Affiliation(s)
- Hu Jue
- First Clinical School, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chen Dan-fei
- First Clinical School, Zhejiang Chinese Medical University, Hangzhou, China
| | - Li Fang-fang
- First Clinical School, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu Ke-pin
- First Clinical School, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xu Jia-ye
- First Clinical School, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhang Hui-ting
- Department of Pediatrics, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuan Xiao-bo
- Department of Pediatrics, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Chen Jian
- First Clinical School, Zhejiang Chinese Medical University, Hangzhou, China
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Liu Y, Zhang Y, Du L, Chen D. The genetic relationships between immune cell traits, circulating inflammatory proteins and preeclampsia/eclampsia. Front Immunol 2024; 15:1389843. [PMID: 38873604 PMCID: PMC11170637 DOI: 10.3389/fimmu.2024.1389843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/06/2024] [Indexed: 06/15/2024] Open
Abstract
Objectives Preeclampsia/eclampsia (PE), a critical complication during pregnancy, has been suggested to correlate with immune cell phenotypes and levels of circulating inflammatory proteins. Our study aimed to employ a two-sample mendelian randomization (MR) analysis to assess the potential causal effects of immune cell phenotypes and circulating inflammatory proteins on the onset of PE. Methods We utilized summary-level data from genome-wide association studies (GWAS). This included statistics for 371 immune cell phenotypes from 3,757 individuals in the Sardinian founder population, and data on 91 circulating inflammatory proteins from 14,824 European ancestry participants. Additionally, genetic associations related to PE were extracted from the FinnGen consortium, involving 1,413 cases and 287,137 controls. We applied inverse variance weighting (IVW) and supplementary methods like MR-Egger, weighted median, and weighted mode to comprehensively assess potential causal links. Results Our analysis revealed significant causal associations of several immune cells type and inflammatory proteins with PE. Out of the immune cell phenotypes analyzed, six immune phenotypes emerged as significant risk factors (p <0.01), mainly include CD4 on activated and secreting CD4 regulatory T cells, CD28 on CD39+ CD4+ T cells, CD127- CD8+ T cell absolute cell (AC) counts, HLA DR on HLA DR+ CD8+ T cell, CD66b on CD66b++ myeloid cells, and HLA DR on dendritic cells. And ten were identified as protective factors (p <0.01). Such as CD45 on CD33br HLA DR+ CD14-, CD33+ HLA DR+ AC, CD33+ HLA DR+ CD14- AC, CD33+ HLA DR+ CD14dim AC, CD27 on CD24+ CD27+ B cell, CD20- CD38- %B cell, IgD- CD24- %B cell CD80 on plasmacytoid DC, CD25 on CD4+ T cell, and CD25 on activated & secreting CD4 regulatory T cell. Furthermore, among the inflammatory proteins studied, five showed a significant association with PE, with three offering protective effects mainly include that C-X-C motif chemokine 1, tumor necrosis factor ligand superfamily member 14, and C-C motif chemokine 19 and two exacerbating PE risk such as STAM-binding domain and Interleukin-6 (p <0.05). Conclusions Our study highlights the pivotal roles played by diverse immune cell phenotypes and circulating inflammatory proteins in the pathophysiology of PE. These findings illuminate the underlying genetic mechanisms, emphasizing the criticality of immune regulation during pregnancy. Such insights could pave the way for novel intervention strategies in managing PE, potentially enhancing maternal and neonatal health outcomes.
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Affiliation(s)
- Yu Liu
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
- Guangdong-Hong Kong Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
| | - Yuliang Zhang
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
- Guangdong-Hong Kong Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
| | - Lili Du
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
- Guangdong-Hong Kong Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
| | - Dunjin Chen
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
- Guangdong-Hong Kong Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, Guangzhou, Guangdong, China
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Zhang X, Li G, Wu W, Li B. Causal role of immune cells in hypertension: a bidirectional Mendelian randomization study. Front Cardiovasc Med 2024; 11:1375704. [PMID: 38859818 PMCID: PMC11163045 DOI: 10.3389/fcvm.2024.1375704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/10/2024] [Indexed: 06/12/2024] Open
Abstract
Background Although Hypertension (HTN) is considered to be a cardiovascular disease caused by multiple factors, the cause of it is still unknown. In this study, we aim to find out whether circulating immune cell characteristics have an impact on susceptibility to HTN. Methods This study employed a comprehensive two-sample Mendelian randomization (MR) analysis to investigate the causal association between immune cell characteristics and HTN. Utilizing publicly accessible genetic data, we examined the causal relationship between HTN and the susceptibility to 731 immune cell signatures. To ensure the reliability and validity of the findings, a comprehensive sensitivity analysis was conducted to assess heterogeneity, confirm the robustness of the results and evaluate the presence of horizontal pleiotropy. Results After FDR correction, immune phenotype had an effect on HTN. In our study, one immunophenotype was identified as being positively associated with HTN risk significance: HLA DR on CD33- HLA DR+. In addition, we examined 8 immune phenotype with no statistically significant effect of HTN, but it is worth mentioning that they had an unadjusted low P-value phenotype. Conclusions Our MR study by genetic means demonstrated the close relationship between HTN and immune cells, thus providing guidance for future clinical prediction and subsequent treatment of HTN.
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Affiliation(s)
- Xinhe Zhang
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
- Shandong First Medical University, Jinan, China
- Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Guanying Li
- Jinan Foreign Language School International Center, Jinan, China
| | - Wei Wu
- Department of Cardiology, Hekou District People Hospital, Dongying, China
| | - Bin Li
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
- Research Center of Translational Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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Deng X, Hou S, Wang Y, Yang H, Wang C. Genetic insights into the relationship between immune cell characteristics and ischemic stroke: A bidirectional Mendelian randomization study. Eur J Neurol 2024; 31:e16226. [PMID: 38323746 PMCID: PMC11236043 DOI: 10.1111/ene.16226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND AND PURPOSE Ischemic stroke, a major contributor to global disability and mortality, is underpinned by intricate pathophysiological mechanisms, notably neuroinflammation and immune cell dynamics. Prior research has identified a nuanced and often paradoxical link between immune cell phenotypes and ischemic stroke susceptibility. The aim of this study was to elucidate the potential causal links between the median fluorescence intensity (MFI) and morphological parameters (MP) of 731 immune cell types and ischemic stroke risk. METHODS By analyzing extensive genetic datasets, we conducted comprehensive Mendelian randomization (MR) analyses to discern the genetic correlations between diverse immune cell attributes (MFI and MP) and ischemic stroke risk. RESULTS Our study identified key immune cell signatures linked to ischemic stroke risk. Both B cells and T cells, among other immune cell types, have a bidirectional influence on stroke risk. Notably, the regulatory T-cell phenotype demonstrates significant neuroprotective properties, with all odds ratio (OR) values and confidence intervals (CIs) being less than 1. Furthermore, CD39 phenotype immune cells, particularly CD39+ CD8+ T cells (inverse variance weighting [IVW] OR 0.92, 95% CI 0.87-0.97; p = 0.002) and CD39+ activated CD4 regulatory T cells (IVW OR 0.93, 95% CI 0.90-0.97; p < 0.001), show notable neuroprotection against ischemic stroke. CONCLUSION This investigation provides new genetic insights into the interplay between various immune cells and ischemic stroke, underscoring the complex role of immune processes in stroke pathogenesis. These findings lay a foundation for future research, which may confirm and expand upon these links, potentially leading to innovative immune-targeted therapies for stroke prevention and management.
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Affiliation(s)
- Xia Deng
- Shandong Second Medical UniversityWeifangChina
| | - Shuai Hou
- Shandong Second Medical UniversityWeifangChina
| | - Yanqiang Wang
- Department II of NeurologyAffiliated Hospital of Shandong Second Medical UniversityWeifangChina
| | - Haiyan Yang
- Emergency DepartmentYantaishan hospitalYantaiChina
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Bi Y, Gao Y, Xie Y, Zhou M, Liu Z, Tian S, Sun C. White blood cells and type 2 diabetes: A Mendelian randomization study. PLoS One 2024; 19:e0296701. [PMID: 38427644 PMCID: PMC10906821 DOI: 10.1371/journal.pone.0296701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/17/2023] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Observational studies have demonstrated an association between white blood cells (WBC) subtypes and type 2 diabetes (T2D) risk. However, it is unknown whether this relationship is causal. We used Mendelian randomization (MR) to investigate the causal effect of WBC subtypes on T2D and glycemic traits. METHODS The summary data for neutrophil, lymphocyte, monocyte, eosinophil, and basophil counts were extracted from a recent genome-wide association study (n = 173,480). The DIAGRAM and MAGIC consortia offered summary data pertaining to T2D and glycemic characteristics, including fasting glucose (FG) (n = 133,010), glycosylated hemoglobin (HbA1c) (n = 46,368), and homeostatic model assessment-estimated insulin resistance (HOMA-IR) (n = 37,037). A series of MR analyses (univariable MR, multivariable MR, and reverse MR) were used to investigate the causal association of different WBC subtypes with T2D and glycemic traits. RESULTS Using the inverse-variance weighted method, we found one standard deviation increases in genetically determined neutrophil [odd ratio (OR): 1.086, 95% confidence interval (CI): 0.877-1.345], lymphocyte [0.878 (0.766-1.006)], monocyte [1.010 (0.906-1.127)], eosinophil [0.995 (0.867-1.142)], and basophil [0.960 (0.763-1.207)] were not causally associated with T2D risk. These findings were consistent with the results of three pleiotropy robust methods (MR-Egger, weighted median, and mode-based estimator) and multivariable MR analyses. Reverse MR analysis provided no evidence for the reverse causation of T2D on WBC subtypes. The null causal effects of WBC subtypes on FG, HbA1c, and HOMA-IR were also identified. CONCLUSIONS WBCs play no causal role in the development of insulin resistance and T2D. The observed association between these factors may be explained by residual confounding.
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Affiliation(s)
- Yaru Bi
- Department of Endocrinology and Metabolism, First Hospital of Jilin University, Changchun, China
| | - Yuan Gao
- Department of Endocrinology and Metabolism, First Hospital of Jilin University, Changchun, China
| | - Yao Xie
- Department of Clinical Nutrition, First Hospital of Jilin University, Changchun, China
| | - Meng Zhou
- Department of Obstetrics and Gynecology, Shengli Oilfield Central Hospital, Dongying, China
| | - Zhiyuan Liu
- Department of Clinical Medicine, Yanbian University, Yanji, China
| | - Suyan Tian
- Division of Clinical Research, First Hospital of Jilin University, Changchun, China
| | - Chenglin Sun
- Department of Endocrinology and Metabolism, First Hospital of Jilin University, Changchun, China
- Department of Clinical Nutrition, First Hospital of Jilin University, Changchun, China
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