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Li W, Xu JW, Chai JL, Guo CC, Li GZ, Gao M, Liang XZ. Complex causal association between genetically predicted 731 immunocyte phenotype and osteonecrosis: a bidirectional two-sample Mendelian randomization analysis. Int J Surg 2024; 110:3285-3293. [PMID: 38498404 PMCID: PMC11175804 DOI: 10.1097/js9.0000000000001327] [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: 01/09/2024] [Accepted: 03/03/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE Previous studies have explored the role of immune cells on osteonecrosis. This Mendelian randomization (MR) study further assessed 731 immunocyte phenotypes on osteonecrosis, whether a causal relationship exists, and provides some evidence of causality. METHODS The 731 immunocyte phenotypes and osteonecrosis data used in this study were obtained from their respective genome-wide association studies (GWAS). The authors used inverse variable weighting (IVW) as the primary analysis method. In addition, the authors simultaneously employed multiple analytical methods, including MR-Egger, weighted mode, simple mode, and weighted median, to strengthen the final results. Finally, sensitivity analyses were conducted to verify the stability and feasibility of the data. RESULTS The results of the IVW method of MR analysis showed that 8 immunocyte phenotypes were positively associated with osteonecrosis [ P <0.05, odds ratio (OR) > 1]; 18 immunocyte phenotypes were negatively associated with osteonecrosis ( P <0.05, OR<1), none of which were heterogeneous or horizontally pleiotropic ( P > 0.05) or reverse causality. In addition to this, in reverse MR, osteonecrosis was positively associated with 10 additional immunocyte phenotypes ( P <0.05, OR > 1) and negatively associated with 14 immunocyte phenotypes ( P <0.05, OR<1). And none of them had heterogeneity and horizontal pleiotropy ( P > 0.05) or reverse causality. CONCLUSIONS The authors demonstrated a complex causal relationship between multiple immune phenotypes and osteonecrosis through a comprehensive two-way, two-sample MR analysis, highlighting the complex pattern of interactions between the immune system and osteonecrosis.
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Affiliation(s)
- Wei Li
- College of Traditional Chinese Medicine
| | - Jing-Wen Xu
- First College of Clinical Medicine
- Department of Cardiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Cardiac Electrophysiology and Arrhythmia, Jinan, China
| | | | - Cong-Cong Guo
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital
| | | | - Mei Gao
- Department of Cardiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Cardiac Electrophysiology and Arrhythmia, Jinan, China
| | - Xue-Zhen Liang
- First College of Clinical Medicine
- Orthopaedic Microsurgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong
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Qiu M, Shen H, Ji W, Fan Q. Assessing the causal role of immune traits in rheumatoid arthritis by bidirectional Mendelian randomization analysis. Aging (Albany NY) 2024; 16:8687-8696. [PMID: 38761178 PMCID: PMC11164524 DOI: 10.18632/aging.205833] [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: 12/18/2023] [Accepted: 04/15/2024] [Indexed: 05/20/2024]
Abstract
Rheumatoid arthritis (RA) is one of the most common autoimmune joint disorders that leads to cartilage degradation. However, its specific correlation with immune cells has not been thoroughly clarified. Based on the two-sample Mendelian randomization (MR) analysis, the association between RA and 731 immune phenotypes which include morphological parameters (MP), relative cell (RC), median fluorescence intensities (MFI), and absolute cells (AC) was comprehensively determined. After false discovery rate correction, RA and immunophenotypes were statistically associated with each other. It was observed that four immune phenotypes, including 1 MPs, 8 RCs, 15 MFIs, and 10 ACs were causally associated with the risk of RA. Meanwhile, several identified immune traits could serve as independent factors for RA and be robust against pleiotropy. While considering the role of RA in immune traits, the involvement of RA in multiple immunophenotypes including CD62L- myeloid DC AC, CD3 on secreting Treg, CD3 on activated and secreting Treg, and CD3 on CD4 Treg was revealed. This study is the first comprehensive evaluation of the interaction between immune response and RA risk, thus providing therapeutic strategies for RA from an immunological perspective.
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Affiliation(s)
- Mingrui Qiu
- Department of Emergency Surgery, Linping Campus, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 311199, China
| | - Huiyun Shen
- Department of Orthopaedic Trauma Surgery, The People’s Hospital of Lishui, Lishui 323000, China
| | - Weiping Ji
- Department of Orthopaedic Trauma Surgery, The People’s Hospital of Lishui, Lishui 323000, China
| | - Qiuping Fan
- Department of Orthopaedic Trauma Surgery, The People’s Hospital of Lishui, Lishui 323000, China
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Chen Z, Guo Y, Sun H, Zhang W, Hou S, Guo Y, Ma X, Meng H. Exploration of the causal associations between circulating inflammatory proteins, immune cells, and neuromyelitis optica spectrum disorder: a bidirectional Mendelian randomization study and mediation analysis. Front Aging Neurosci 2024; 16:1394738. [PMID: 38737586 PMCID: PMC11088236 DOI: 10.3389/fnagi.2024.1394738] [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: 03/02/2024] [Accepted: 04/16/2024] [Indexed: 05/14/2024] Open
Abstract
Background An increasing body of research has demonstrated a robust correlation between circulating inflammatory proteins and neuromyelitis optica spectrum disorders (NMOSD). However, whether this association is causal or whether immune cells act as mediators currently remains unclear. Methods We employed bidirectional two-sample Mendelian randomization (TSMR) analysis to examine the potential causal association between circulating inflammatory proteins, immune cells, and NMOSD using data from genome-wide association studies (GWAS). Five different methods for Mendelian randomization analyses were applied, with the inverse variance-weighted (IVW) method being the primary approach. Sensitivity analyses were further performed to assess the presence of horizontal pleiotropy and heterogeneity in the results. Finally, a two-step Mendelian randomization (MR) design was employed to examine the potential mediating effects of immune cells. Results A notable causal relationship was observed between three circulating inflammatory proteins (CSF-1, IL-24, and TNFRSF9) and genetically predicted NMOSD. Furthermore, two immune cell phenotypes, genetically predicted CD8 on naive CD8+ T cells, and Hematopoietic Stem Cell Absolute Count were negatively and positively associated with genetically predicted NMOSD, respectively, although they did not appear to function as mediators. Conclusion Circulating inflammatory proteins and immune cells are causally associated with NMOSD. Immune cells do not appear to mediate the pathway linking circulating inflammatory proteins to NMOSD.
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Affiliation(s)
- Zhiqing Chen
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Yujin Guo
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Huaiyu Sun
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Wuqiong Zhang
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Shuai Hou
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Yu Guo
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Xiaohui Ma
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Hongmei Meng
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
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Xu M, Li C, Xiang L, Chen S, Chen L, Ling G, Hu Y, Yang L, Yuan X, Xia X, Zhang H. Assessing the causal relationship between 731 immunophenotypes and the risk of lung cancer: a bidirectional mendelian randomization study. BMC Cancer 2024; 24:270. [PMID: 38408977 PMCID: PMC10898084 DOI: 10.1186/s12885-024-12014-1] [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: 12/12/2023] [Accepted: 02/16/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Previous studies have observed a link between immunophenotypes and lung cancer, both of which are closely associated with genetic factors. However, the causal relationship between them remains unclear. METHODS Bidirectional Mendelian randomization (MR) was performed on publicly available genome-wide association study (GWAS) summary statistics to analyze the causal relationships between 731 immunophenotypes and lung cancer. Sensitivity analyses were conducted to verify the robustness, heterogeneity, and potential horizontal pleiotropy of our findings. RESULTS Following Bonferroni adjustment, CD14- CD16+ monocyte (OR = 0.930, 95%CI 0.900-0.960, P = 8.648 × 10- 6, PBonferroni = 0.006) and CD27 on CD24+ CD27+ B cells (OR = 1.036, 95%CI 1.020-1.053, P = 1.595 × 10 - 5, PBonferroni = 0.012) were identified as having a causal role in lung cancer via the inverse variance weighted (IVW) method. At a more relaxed threshold, CD27 on IgD+ CD24+ B cell (OR = 1.035, 95%CI 1.017-1.053, P = 8.666 × 10- 5, PBonferroni = 0.063) and CD27 on switched memory B cell (OR = 1.037, 95%CI 1.018-1.056, P = 1.154 × 10- 4, PBonferroni = 0.084) were further identified. No statistically significant effects of lung cancer on immunophenotypes were found. CONCLUSIONS The elevated level of CD14- CD16+ monocytes was a protective factor against lung cancer. Conversely, CD27 on CD24+ CD27+ B cell was a risk factor. CD27 on class-switched memory B cells and IgD+ CD24+ B cells were potential risk factors for lung cancer. This research enhanced our comprehension of the interplay between immune responses and lung cancer risk. Additionally, these findings offer valuable perspectives for the development of immunologically oriented therapeutic strategies.
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Affiliation(s)
- Ming Xu
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Chengkai Li
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Liyan Xiang
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Siyue Chen
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Lin Chen
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Gongxia Ling
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Yanqing Hu
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Lan Yang
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Xiang Yuan
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China
| | - Xiaodong Xia
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China.
| | - Hailin Zhang
- The Second Affiliated Hospital, Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, Zhejiang, 325007, Wenzhou, PR China.
- Department of Children's Respiration Disease, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, 109 West Xueyuan Road, Lucheng District, 325027, Wenzhou, Zhejiang, PR China.
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Qiu B, Zhang T, Qin X, Ma S, Wang Q. The immune factors have complex causal regulation effects on inflammatory bowel disease. Front Immunol 2024; 14:1322673. [PMID: 38264669 PMCID: PMC10803565 DOI: 10.3389/fimmu.2023.1322673] [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: 10/16/2023] [Accepted: 12/11/2023] [Indexed: 01/25/2024] Open
Abstract
Background Although a correlation between immune cell phenotypes and inflammatory bowel disease (IBD) has been established, a causal relationship remains unestablished. Methods To assess causal associations between immune cell phenotypes and IBD and its subtypes, we employed Mendelian randomization (MR) methods and genome-wide association studies (GWAS) summary statistics. The primary outcomes were determined based on the inverse variance weighting (IVW) results, with the assessment of heterogeneity and pleiotropy conducted through Cochrane's Q-test and MR-Egger. The stability of the MR results was then examined using leave-one-out analysis, and false discovery rate (FDR) correction was applied to evaluate the strength of the causal relationship between exposure and outcome. Furthermore, to identify immunophenotypes strongly associated with IBD, a meta-integration of the effect values of all positive results in both datasets was conducted. Results The analysis of 731 immune cell phenotypes and IBD using MR techniques revealed potential causal associations between 26 phenotypes and IBD. Subsequent meta-integration of the two datasets provided evidence of solid causal associations between 18 immune phenotypes and IBD and its subtypes. Nominal causal associations were also identified in the remaining eight immune phenotypes and IBD and its subtypes. Conclusion Our study confirms causal solid associations between 18 immune phenotypes and IBD, thus guiding future clinical studies.
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Affiliation(s)
| | | | | | | | - Quan Wang
- Department of Gastric and Colorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
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Li C, Lin X, Lin Q, Lin Y, Lin H. Jiangu granules ameliorate postmenopausal osteoporosis via rectifying bone homeostasis imbalance: A network pharmacology analysis based on multi-omics validation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155137. [PMID: 37856991 DOI: 10.1016/j.phymed.2023.155137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/23/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Postmenopausal osteoporosis (PMOP) is a series of reactions to bone homeostasis dysregulation mediated by estrogen deficiency in elderly women. Jiangu granules, a traditional Chinese medicine formula, has been proven as an effective treatment approach for PMOP, which still needs more research iin its complex regulatory mechanisms. PURPOSE Our study aimed to identify the putative targets and regulatory mechanisms of Jiangu granules in PMOP treating. METHODS We utilized the NHANES database to compare the clinical information of normal population and PMOP patients. Associated with transcriptomics and proteomic data, we identified the PMOP-related genes, and further studied them with bioinformatic methods including and prognosis model. Network pharmacology was applied for confirming the action targets of Jiangu granules in PMOP. We verified the safety and effectiveness in PMOP treatments of Jiangu granules, and also demonstrated our hypothesis in rats. RESULTS We discovered that the PMOP patients had higher monocytes than the normal women. Moreover, the transcriptomics and proteomic analysis suggested that the dysregulation of PMOP-related genes expression was associated with monocytes, and the Notch pathway were the critical targets representing bone homeostasis imbalance highly involved in the occurrence of PMOP. We also ascertained network pharmacology results further revealing that Jiangu granules might treat PMOP via recovering the bone homeostasis imbalance identified above. In vivo experiments, we confirmed the high efficacy which mainly resulted from function in mitigating the imbalance in bone homeostasis by recovering the normal expression of PMOP-related genes associated with monocytes, Notch, and steroid pathway in the rat models. CONCLUSION Our finding underscored the clinical potential of Jiangu granules in treating PMOP, and enriched the comprehension of the related pathogenic and therapeutic mechanisms.
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Affiliation(s)
- Chaoxiong Li
- Department of Orthopedics, Fuzhou Second Hospital, Fuzhou, China; Fujian Provincial Clinical Medical Research Center for First Aid and Rehabilitation in Orthopaedic Trauma(2020Y2014), Fuzhou, China; The Third Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Xiangquan Lin
- Department of Orthopedics, Fuzhou Second Hospital, Fuzhou, China; Fujian Provincial Clinical Medical Research Center for First Aid and Rehabilitation in Orthopaedic Trauma(2020Y2014), Fuzhou, China; The Third Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Qin Lin
- Department of Orthopedics, Fuzhou Second Hospital, Fuzhou, China; Fujian Provincial Clinical Medical Research Center for First Aid and Rehabilitation in Orthopaedic Trauma(2020Y2014), Fuzhou, China; The Third Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Yanping Lin
- College of Acupuncture and Moxibustion, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Haiming Lin
- College of Integrated Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, 1st Qiuyang Road, Shangjie Town, Minhou County, Fuzhou, Fujian, China.
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Jin Y, Yu X, Li J, Su M, Li X. Causal effects and immune cell mediators between prescription analgesic use and risk of infectious diseases: a Mendelian randomization study. Front Immunol 2023; 14:1319127. [PMID: 38193081 PMCID: PMC10772142 DOI: 10.3389/fimmu.2023.1319127] [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: 10/11/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024] Open
Abstract
Introduction Clinical observations have found that prolonged use of analgesics increases the incidence of infection. However, the direct causal relationship between prescription analgesic use (PAU) and risk of infection (ROI) remains unclear. Methods This study used Mendelian randomization (MR) design to estimate the causal effect of PAU on ROI, as well as their mediating factors. Genetic data on prescription analgesics use and immune cells were obtained from published GWAS. Additionally, data on ROI were extracted from the FinnGen database. Two-sample MR analysis and multivariate MR (MVMR) analysis were performed using inverse variance weighting (IVW) to ascertain the causal association between PAU and ROI. Finally, 731 immune cell phenotypes were analyzed for their mediating role between analgesics and infection. Results Using two-sample MR, IVW modeling showed that genetically predicted opioid use was associated with increased risk of pulmonary infection (PI) (OR = 1.13, 95% CI: 1.05-1.21, p< 0.001) and upper respiratory infection (URI) (OR = 1.18, 95% CI: 1.08-1.30, p< 0.001); non-steroidal anti-inflammatory drugs (NSAIDs) were related to increased risk of skin and subcutaneous tissue infection (OR = 1.21, 95% CI: 1.05-1.39, p = 0.007), and antimigraine preparations were linked to a reduced risk of virus hepatitis (OR = 0.79, 95% CI: 0.69-0.91, p< 0.001). In MVMR, the association of opioids with URI and PI remained after accounting for cancer conditions. Even with a stricter threshold (p< 0.05/30), we found a significant causal association between opioids and respiratory infections (URI/PI). Finally, mediation analyses found that analgesics influence the ROI through different phenotypes of immune cells as mediators. Conclusion This MR study provides new genetic evidence for the causal relationship between PAU and ROI, and the mediating role of immune cells was demonstrated.
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Affiliation(s)
- Yi Jin
- The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Pharmacy, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Xinghao Yu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Jun Li
- The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Pharmacy, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Mingzhu Su
- The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
- Department of Pharmacy, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Xiaomin Li
- The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Department of Pharmacy, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
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Lyu F, Wang L, Jia Y, Wang Y, Qi H, Dai Z, Zhou X, Zhu H, Li B, Xu Y, Liu J. Analysis of Zinc and Stromal Immunity in Disuse Osteoporosis: Mendelian Randomization and Transcriptomic Analysis. Orthop Surg 2023; 15:2947-2959. [PMID: 37752822 PMCID: PMC10622276 DOI: 10.1111/os.13840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/22/2023] [Accepted: 06/30/2023] [Indexed: 09/28/2023] Open
Abstract
OBJECTIVE Disuse osteoporosis is known to be primarily caused by a lack of exercise. However, the causal relationships between zinc and immunity and disuse osteoporosis remain unknown. This study investigated these relationships and their potential mechanisms. METHODS This study was an integrative study combining genome-wide association studies and transcriptomics. Two-sample Mendelian randomization analysis (MR) was used to analyze the causal relationships between exposures (zinc, immunity, physical activity) and the outcome (osteoporosis) with the aid of single-nucleotide polymorphisms (SNPs) as instrumental variables (IVs). Four models, MR-Egger, inverse variance weighted, weighted median and MR-Pleiotrophy RESidual Sum and Outlier (MRPRESSO), were used to calculate odds ratio values. Sensitivity and heterogeneity analyses were also performed using MRPRESSO and MR-Egger methods. The mRNA transcriptomic analysis was subsequently conducted. Zinc metabolism scores were acquired through single-sample Gene Set Enrichment Analysis algorithms. Stromal scores were obtained using the R Package "estimate" algorithms. Important Kyoto Encyclopedia of Genes and Genomes and Gene Ontology pathways were also derived through gene set variation analysis. Cytoscape software helped construct the transcription factor (TF)-mRNA-microRNA (miRNA) network. Virtual screening and molecular docking were performed. Polymerase chain reaction validation was also carried out in vivo. RESULTS Causal relationships were demonstrated between zinc and exercise (95% confidence interval [CI] = 1.30-2.95, p = 0.001), exercise and immunity (95% CI = 0.36-0.80, p = 0.002), exercise and osteoporosis (95% CI = 0.97-0.99, p = 0.0007), and immunity disorder and osteoporosis (95% CI = 1.30-2.03, p = 0.00002). One hundred and seventy-nine mRNAs in important modules were screened. Combining the differential expressional genes (DEGs) and the Boruta selection, six DEGs were screened (AHNAK, CSF2, ADAMTS12, SRA1, RUNX2, and SLC39A14). TF HOXC10 and miRNA hsa-miR-204 were predicted. Then, the TF-mRNA-miRNA network was successfully constructed. RUNX2 and SLC39A14 were identified as hub mRNAs in the TF-mRNA-miRNA network. Eventually, the novel small drug C6O4NH5 was designed according to the pharmacophore structure of SLC39A14. The docking energy for the novel drug was -5.83 kcal/mol. SLC39A14 and RUNX2 were downregulated (of statistical significance p-value < 0.05) in our animal experiment. CONCLUSION This study revealed that zinc had a protective causal relationship with disuse osteoporosis by promoting exercise and immunity. SLC39A14 and RUNX2 mRNA participated in this zinc-related mechanism.
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Affiliation(s)
- Fei Lyu
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
- Orthopedic Center (Sports Medicine Center)Inner Mongolia People's HospitalHohhotChina
| | - Li Wang
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
| | - Yiming Jia
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
- Department of OrthopedicsChifeng Municipal HospitalChifengChina
| | - Yuanlin Wang
- Department of Joint SurgeryTianjin HospitalTianjinChina
- Tianjin Institute of AnesthesiologyTianjin Medical UniversityTianjinChina
| | - Haolan Qi
- School of MedicineNankai UniversityTianjinChina
| | - Zhengxu Dai
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
| | - Xuyang Zhou
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
| | - Haoran Zhu
- School of MedicineXi'an Jiaotong UniversityXianChina
| | - Bing Li
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
| | - Yujing Xu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of PharmacyTianjin Medical UniversityTianjinChina
| | - Jun Liu
- College of OrthopedicsTianjin Medical UniversityTianjinChina
- Department of Joint SurgeryTianjin HospitalTianjinChina
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Gu J, Yan GM, Kong XL, Zhang YY, Huang LH, Lu HM. Assessing the causal relationship between immune traits and systemic lupus erythematosus by bi-directional Mendelian randomization analysis. Mol Genet Genomics 2023; 298:1493-1503. [PMID: 37845373 DOI: 10.1007/s00438-023-02071-9] [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: 10/04/2022] [Accepted: 09/23/2023] [Indexed: 10/18/2023]
Abstract
Previous studies have observed relationships between immune cells and systemic lupus erythematosus (SLE), but their causal links remain undetermined. Based on the public available genome-wide association studies (GWAS) summary statistics, we conducted two-sample Mendelian randomization (MR) to evaluate the associations between 731 immune phenotypes and SLE pairs. Pairwise pleiotropy analysis was performed to identify pleiotropic genes for significant immunophenotype-SLE pairs. A comprehensive gene function analysis was undertaken to explore the mechanisms of immune cells in SLE. By using the instrumental variables extracted from GWAS data, we observed that increased levels of five immune phenotypes were causally associated with SLE risk (FDR < 0.05), that were CD20 on IgD+ CD38- naïve, BAFF-R on IgD+ CD38dim, CD39+ secreting Treg AC, CD14- CD16+ monocyte AC, and HLA DR on CD14+ monocyte. Pairwise gene-based analyses identified a total of 38 pleiotropic genes for 5 significant pairs identified and gene set enrichment analysis revealed the involvement of the identified pleiotropic genes in complex pathways (i.e., systemic lupus erythematosus, an integral component of luminal side of endoplasmic reticulum membrane, C-type lectin receptor signaling pathway and regulation of hormone secretion). This study demonstrates that the immune response influences the progression of SLE in a complex pattern. These findings greatly improve our understanding of the interaction between immune response and SLE risk and also aid in the design of therapeutic strategies from an immunological perspective.
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Affiliation(s)
- Jie Gu
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Guan-Min Yan
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Xiao-Lin Kong
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Yin-Ying Zhang
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Li-Hong Huang
- Department of Biostatistics, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China.
| | - Hui-Min Lu
- Department of Outpatient and Emergency, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China.
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