Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study

Abstract Background Alzheimer’s disease (AD) is one of the most common forms of dementia in the elderly, characterized by progressive neurodegeneration. While the exact etiology of AD remains unclear, immune inflammation is known to play a significant role in the disease. Methods This study utilized...

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Main Authors: Linzhu, Jianxin Zhang, Wenhui Fan, Chen Su, Zhi Jin
Format: Article
Language:English
Published: BMC 2025-02-01
Series:BMC Neurology
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Online Access:https://doi.org/10.1186/s12883-025-04057-z
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author Linzhu
Jianxin Zhang
Wenhui Fan
Chen Su
Zhi Jin
author_facet Linzhu
Jianxin Zhang
Wenhui Fan
Chen Su
Zhi Jin
author_sort Linzhu
collection DOAJ
description Abstract Background Alzheimer’s disease (AD) is one of the most common forms of dementia in the elderly, characterized by progressive neurodegeneration. While the exact etiology of AD remains unclear, immune inflammation is known to play a significant role in the disease. Methods This study utilized a two-sample Mendelian randomization (MR) approach to assess the causal relationship between different types of immune cells and AD, while considering inflammatory factors as intermediate variables. Data were collected from three sources: immune cell data (731 phenotypes), inflammatory factors (48 cytokines from 8,293 individuals), and AD data (35,274 cases, 59,163 controls). Multiple MR methods were employed to minimize bias, and detailed descriptions of instrumental variable selection and statistical methods were provided. Results The study findings suggest potential causal relationships between six different types of immune cells and AD, as well as causal relationships between 13 immune cells and inflammatory factors. Additionally, two statistically significant inflammatory factors were found to have potential causal relationships with AD. Specifically, immune cells CD33-HLA DR + and CD45 on CD33-HLA DR + may further influence AD by regulating Interleukin-2 levels. Conclusion This study provides valuable insights into the immunoinflammatory pathogenesis of AD and offers partial guidance for the development of relevant interventions, thereby contributing beneficial information for the prevention and treatment of related diseases.
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spelling doaj-art-619ec0bda94043dbb4dd321a18f541582025-02-09T12:43:03ZengBMCBMC Neurology1471-23772025-02-012511910.1186/s12883-025-04057-zInfluence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization studyLinzhu0Jianxin Zhang1Wenhui Fan2Chen Su3Zhi Jin4Department of Traditional Chinese Medicine, the Second Hospital of Shandong UniversityDepartment of Traditional Chinese Medicine, the Second Hospital of Shandong UniversityDepartment of Traditional Chinese Medicine, the Second Hospital of Shandong UniversityDepartment of Traditional Chinese Medicine, the Second Hospital of Shandong UniversityDepartment of Traditional Chinese Medicine, the Second Hospital of Shandong UniversityAbstract Background Alzheimer’s disease (AD) is one of the most common forms of dementia in the elderly, characterized by progressive neurodegeneration. While the exact etiology of AD remains unclear, immune inflammation is known to play a significant role in the disease. Methods This study utilized a two-sample Mendelian randomization (MR) approach to assess the causal relationship between different types of immune cells and AD, while considering inflammatory factors as intermediate variables. Data were collected from three sources: immune cell data (731 phenotypes), inflammatory factors (48 cytokines from 8,293 individuals), and AD data (35,274 cases, 59,163 controls). Multiple MR methods were employed to minimize bias, and detailed descriptions of instrumental variable selection and statistical methods were provided. Results The study findings suggest potential causal relationships between six different types of immune cells and AD, as well as causal relationships between 13 immune cells and inflammatory factors. Additionally, two statistically significant inflammatory factors were found to have potential causal relationships with AD. Specifically, immune cells CD33-HLA DR + and CD45 on CD33-HLA DR + may further influence AD by regulating Interleukin-2 levels. Conclusion This study provides valuable insights into the immunoinflammatory pathogenesis of AD and offers partial guidance for the development of relevant interventions, thereby contributing beneficial information for the prevention and treatment of related diseases.https://doi.org/10.1186/s12883-025-04057-zImmune cellsInflammatory factorsAlzheimer's diseaseMendelian randomization study
spellingShingle Linzhu
Jianxin Zhang
Wenhui Fan
Chen Su
Zhi Jin
Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study
BMC Neurology
Immune cells
Inflammatory factors
Alzheimer's disease
Mendelian randomization study
title Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study
title_full Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study
title_fullStr Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study
title_full_unstemmed Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study
title_short Influence of immune cells and inflammatory factors on Alzheimer’s disease axis: evidence from mediation Mendelian randomization study
title_sort influence of immune cells and inflammatory factors on alzheimer s disease axis evidence from mediation mendelian randomization study
topic Immune cells
Inflammatory factors
Alzheimer's disease
Mendelian randomization study
url https://doi.org/10.1186/s12883-025-04057-z
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AT jianxinzhang influenceofimmunecellsandinflammatoryfactorsonalzheimersdiseaseaxisevidencefrommediationmendelianrandomizationstudy
AT wenhuifan influenceofimmunecellsandinflammatoryfactorsonalzheimersdiseaseaxisevidencefrommediationmendelianrandomizationstudy
AT chensu influenceofimmunecellsandinflammatoryfactorsonalzheimersdiseaseaxisevidencefrommediationmendelianrandomizationstudy
AT zhijin influenceofimmunecellsandinflammatoryfactorsonalzheimersdiseaseaxisevidencefrommediationmendelianrandomizationstudy