ArticleJournal of neuroinflammation2023
Exogenous monocyte myeloid-derived suppressor cells ameliorate immune imbalance, neuroinflammation and cognitive impairment in 5xFAD mice infected with Porphyromonas gingivalis.
Article in Journal of neuroinflammation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 16 citations in OpenAlex.
- Insights into taurine therapy for periodontitis: Targeting osteocyte ferroptosis to mitigate obesity-exacerbated bone damage.Redox biology · 2026Article
- Assessment of the Association of Periodontitis and Diabetes Mellitus with Alzheimer's Disease in a Mouse Model.International journal of molecular sciences · 2026Article
- Oral-Systemic Links: A Narrative Review of the Role of Periodontitis in Alzheimer's Disease Development.Cureus · 2026Review
- The spleen-brain axis in Alzheimer's disease and related dementias: Integrating immune and metabolic regulation.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Review
- Machine learning-guided Huanglian Jiedu decoction targets STING in periodontitis-induced Alzheimer's Disease.NPJ digital medicine · 2026Article
- Integrative genomics and functional immunology reveal Clostridia species as modulators of neuroinflammation in amyotrophic lateral sclerosis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Article
- The research progress on periodontitis by the National Natural Science Foundation of China.International journal of oral science · 2025Review
- Exploring the Link Between Periodontitis and Alzheimer's Disease-Could a Nanoparticulate Vaccine Break It?Pharmaceutics · 2025Review
- Alzheimer's Disease andLife (Basel, Switzerland) · 2025Review
- The role of peripheral innate immune cells in Alzheimer's disease progression.Frontiers in immunology · 2025Review
- Nociceptive Neurons Promote Myeloid-Derived Suppressor Cell Mobilization to Alleviate Post-Stroke Neuroinflammation.Theranostics · 2025Article
- Microglial DBP Signaling Mediates Behavioral Abnormality Induced by Chronic Periodontitis in Mice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Review
- Modulation of myeloid-derived suppressor cell functions by oral inflammatory diseases and important oral pathogens.Frontiers in immunology · 2024Review
- Identification of cross-talk pathways and PANoptosis-related genes in periodontitis and Alzheimer's disease by bioinformatics analysis and machine learning.Frontiers in aging neuroscience · 2024Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundPeriodontitis is closely associated with the pathogenesis of Alzheimer's disease (AD). Porphyromonas gingivalis (Pg), the keystone periodontal pathogen, has been reported in our recent study to cause immune-overreaction and induce cognitive impairment. Monocytic myeloid-derived suppressor cells (mMDSCs) possess potent immunosuppressive function. It is unclear whether mMDSCs-mediated immune homeostasis is impaired in AD patients with periodontitis, and whether exogenous mMDSCs could ameliorate immune-overreaction and cognitive impairment induced by Pg.
methodsTo explore the influence of Pg on cognitive function, neuropathology and immune balance in vivo, 5xFAD mice were treated with live Pg by oral gavage, three times a week for 1 month. The cells of peripheral blood, spleen and bone marrow from 5xFAD mice were treated with Pg to detect the proportional and functional alterations of mMDSCs in vitro. Next, exogenous mMDSCs were sorted from wild-type healthy mice and intravenously injected into 5xFAD mice that were infected with Pg. We used behavioral tests, flow cytometry and immunofluorescent staining to evaluate whether exogenous mMDSCs could ameliorate the cognitive function, immune homeostasis and reduce neuropathology exacerbated by Pg infection.
resultsPg exacerbated cognitive impairment in 5xFAD mice, with the deposition of amyloid plaque and increased number of microglia in the hippocampus and cortex region. The proportion of mMDSCs decreased in Pg-treated mice. In addition, Pg reduced the proportion and the immunosuppressive function of mMDSCs in vitro. Supplement of exogenous mMDSCs improved the cognitive function, and enhanced the proportions of mMDSCs and IL-10
conclusionsPg can reduce the proportion of mMDSCs, induce immune-overreaction, and exacerbate the neuroinflammation and cognitive impairment in 5xFAD mice. Supplement of exogenous mMDSCs can reduce the neuroinflammation, immune imbalance and cognitive impairment in 5xFAD mice infected with Pg. These findings indicate the mechanism of AD pathogenesis and Pg-mediated promotion of AD, and provide a potential therapeutic strategy for AD patients.
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