Abstract
Purpose of Review
This review provides an updated summary of our current understanding of the role of neuroinflammation in Alzheimer’s disease (AD). We introduce the main cellular and molecular players in AD-related neuroinflammation, highlight the latest discovery on how inflammasome participates in the development of AD, and discuss potential neuroimmunomodulation approaches for AD prevention and therapy.
Recent Findings
AD is characterized by the abnormal accumulation or aggregation of proteins such as amyloid β (Aβ) and tau, which could act as danger-associated molecular patterns that engage pattern-recognition receptors to activate inflammatory signaling pathways and promote the production and release of a variety of inflammatory mediators. While the role of neuroinflammatory response in AD is complex and poorly understood, it is generally considered that consistent neuroinflammation has detrimental effects and facilitate the progression of AD. In particular, recent evidence suggests that targeting Nod-like receptor protein 3 (NLRP3) inflammasome could slow the deposition of Aβ plaques in the brain and improve neurological outcome in AD patients.
Summary
Neuroinflammation plays an important role in AD. Further elucidation of molecular mechanisms underlying AD-related neuroinflammatory response would help develop novel strategies for the prevention and treatment of AD.
Similar content being viewed by others
References
Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
Peng D, Shi Z, Xu J, Shen L, Xiao S, Zhang N, et al. Demographic and clinical characteristics related to cognitive decline in Alzheimer disease in China: a multicenter survey from 2011 to 2014. Medicine (Baltimore). 2016;95(26):e3727.
Wang BR, Ou Z, Gu XH, Wei CS, Xu J, Shi JQ. Validation of the Chinese version of Addenbrooke's cognitive examination III for diagnosing dementia. Int J Geriatr Psychiatry. 2017;32(12):e173–9.
Gandy S. The role of cerebral amyloid beta accumulation in common forms of Alzheimer disease. J Clin Invest. 2005;115:1121–9.
• Bronzuoli MR, Iacomino A, Steardo L, Scuderi C. Targeting neuroinflammation in Alzheimer’s disease. J Inflamm Res. 2016;9:199–208. An excellent review on the potential of neuroinflammation as therapeutic targets of Alzheimer’s disease.
Shi JQ, Chen J, Wang BR, Zhu YW, Xu Y, Wang J, et al. Short amyloid-beta immunogens show strong immunogenicity and avoid stimulating pro-inflammatory pathways in bone marrow-derived dendritic cells from C57BL/6J mice in vitro. Peptides. 2011;32(8):1617–25.
Sastre M, Walter J, Gentleman SM. Interactions between APP secretases and inflammatory mediators. J Neuroinflammation. 2008;5:25.
Wyss-Coray T, Mucke L. Inflammation in neurodegenerative disease: a double-edged sword. Neuron. 2002;35:419–32.
Morales I, Guzmán-Martínez L, Cerda-Troncoso C, Farías GA, Maccioni RB. Neuroinflammation in the pathogenesis of Alzheimer’s disease. A rational framework for the search of novel therapeutic approaches. Front Cell Neurosci. 2014;8:112.
Ransohoff RM, Schafer D, Vincent A, Blachère NE, Bar-Or A. Neuroinflammation: ways in which the immune system affects the brain. Neurotherapeutics. 2015;12:896–909.
• Ransohoff RM. How neuroinflammation contributes to neurodegeneration. Science. 2016;353:777–83. A nice review on the role of neuroinflammation in neurodegenerative diseases.
Ben Haim L, Rowitch DH. Functional diversity of astrocytes in neural circuit regulation. Nat Rev Neurosci. 2017;18:31–41.
Sofroniew MV, Vinters HV. Astrocytes: biology and pathology. Acta Neuropathol. 2010;119:7–35.
Rodriguez-Vieitez E, Saint-Aubert L, Carter SF, Almkvist O, Farid K, Schöll M, et al. Diverging longitudinal changes in astrocytosis and amyloid PET in autosomal dominant Alzheimer’s disease. Brain. 2016;139(Pt 3):922–36.
Vincent AJ, Gasperini R, Foa L, Small DH. Astrocytes in Alzheimer’s disease: emerging roles in calcium dysregulation and synaptic plasticity. J Alzheimers Dis. 2010;22(3):699–714.
• Acosta C, Anderson HD, Anderson CM. Astrocyte dysfunction in Alzheimer disease. J Neurosci Res. 2017;95(12):2430–47. An updated review on the role of astrocytes in Alzheimer disease.
Baroja-Mazo A, Martín-Sánchez F, Gomez AI, Martínez CM, Amores-Iniesta J, Compan V, et al. The NLRP3 inflammasome is released as a particulate danger signal that amplifies the inflammatory response. Nat Immunol. 2014;15(8):738–48.
Wilkinson K, El Khoury J. Microglial scavenger receptors and their roles in the pathogenesis of Alzheimer's disease. Int J Alzheimers Dis. 2012;2012:489456.
Hamelin L, Lagarde J, Dorothée G, Leroy C, Labit M, Comley RA, et al. Early and protective microglial activation in Alzheimer’s disease: a prospective study using 18F-DPA-714 PET imaging. Brain J Neurol. 2016;139(Pt 4):1252–64.
Fan Z, Okello AA, Brooks DJ, Edison P. Longitudinal influence of microglial activation and amyloid on neuronal function in Alzheimer’s disease. Brain J Neurol. 2015;138(Pt 12):3685–98.
•• Ardura-Fabregat A, Boddeke EWGM, Boza-Serrano A, Brioschi S, Castro-Gomez S, Ceyzériat K, et al. Targeting Neuroinflammation to treat Alzheimer's disease. CNS Drugs. 2017;31(12):1057–82. A comprehensive review on targeting neuroinflammation as novel avenue to treat Alzheimer's Disease.
Liu S, Liu Y, Hao W, Wolf L, Kiliaan AJ, Penke B, et al. TLR2 is a primary receptor for Alzheimer’s amyloid β peptide to trigger neuroinflammatory activation. J Immunol. 2012;188:1098–107.
Thundyil J, Lim KL. DAMPs and neurodegeneration. Ageing Res Rev. 2015;24(Pt A):17–28.
Forlenza OV, Diniz BS, Talib LL, Mendonça VA, Ojopi EB, Gattaz WF, et al. Increased serum IL-1beta level in Alzheimer's disease and mild cognitive impairment. Dement Geriatr Cogn Disord. 2009;28(6):507–12.
Yuan H, Xia Q, Ge P, Wu S. Genetic polymorphism of interleukin 1β -511C/T and susceptibility to sporadic Alzheimer’s disease: a meta-analysis. Mol Biol Rep. 2013;40(2):1827–34.
Vom Berg J, Prokop S, Miller KR, Obst J, Kälin RE, Lopategui-Cabezas I, et al. Inhibition of IL-12/IL-23 signaling reduces Alzheimer’s disease-like pathology and cognitive decline. Nat Med. 2012;18(12):1812–9.
Zhu XC, Tan L, Jiang T, Tan MS, Zhang W, Yu JT. Association of IL-12A and IL-12B polymorphisms with Alzheimer’s disease susceptibility in a Han Chinese population. J Neuroimmunol. 2014;274(1–2):180–4.
Le Thuc O, Blondeau N, Nahon JL, Rovère C. The complex contribution of chemokines to neuroinflammation: switching from beneficial to detrimental effects. Ann N Y Acad Sci. 2015;1351:127–40.
Chen P, Zhao W, Guo Y, Xu J, Yin M. CX3CL1/CX3CR1 in Alzheimer’s disease: a target for neuroprotection. Biomed Res Int. 2016;2016:8090918.
El Khoury JB, Moore KJ, Means TK, Leung J, Terada K, Toft M, et al. CD36 mediates the innate host response to beta-amyloid. J Exp Med. 2003;197(12):1657–66.
Kiyota T, Morrison CM, Tu G, Dyavarshetty B, Weir RA, Zhang G, et al. Presenilin-1 familial Alzheimer’s disease mutation alters hippocampal neurogenesis and memory function in CCL2 null mice. Brain Behav Immun. 2015;49:311–21.
Bagyinszky E, Giau VV, Shim K, Suk K, An SSA, Kim S. Role of inflammatory molecules in the Alzheimer’s disease progression and diagnosis. J Neurol Sci. 2017;376:242–54.
•• Martinon F, Burns K, Tschopp J. The inflammasome: a molecular platform triggering activation of inflammatory caspases and processing of proIL-beta. Mol Cell. 2002;10(2):417–26. The first report on the discovery of inflammasome.
Schroder K, Tschopp J. The inflammosomes. Cell. 2010;140(6):821–32.
Salminen A, Ojala J, Suuronen T, Kaarniranta K, Kauppinen A. Amyloid-beta oligomers set fire to inflammasomes and induce Alzheimer’s pathology. J Cell Mol Med. 2008;12(6A):2255–62.
Saresella M, La Rosa F, Piancone F, Zoppis M, Marventano I, Calabrese E, et al. The NLRP3 and NLRP1 inflammasomes are activated in Alzheimer’s disease. Mol Neurodegener. 2016;11:23.
Wu PJ, Hung YF, Liu HY, Hsueh YP. Deletion of the inflammasome sensor Aim2 mitigates Aβ deposition and microglial activation but increases inflammatory cytokine expression in an Alzheimer disease mouse model. Neuroimmunomodulation. 2017;24(1):29–39.
Pennisi M, Crupi R, Di Paola R, Ontario ML, Bella R, Calabrese EJ, et al. Inflammasomes, hormesis, and antioxidants in neuroinflammation: role of NRLP3 in Alzheimer disease. J Neurosci Res. 2017;95(7):1360–72.
Parajuli B, Sonobe Y, Horiuchi H, Takeuchi H, Mizuno T, Suzumura A. Oligomeric amyloid β induces IL-1β processing via production of ROS: implication in Alzheimer’s disease. Cell Death Dis. 2013;4:e975.
• Heneka MT. Inflammasome activation and innate immunity in Alzheimer’s disease. Brain Pathol. 2017;27(2):220–2. An updated review on the role of inflammasome in Alzheimer’s disease.
•• Heneka MT, Kummer MP, Stutz A, Delekate A, Schwartz S, Vieira-Saecker A, et al. NLRP3 is activated in Alzheimer’s disease and contributes to pathology in APP/PS1 mice. Nature. 2013;493:674–8. An important study to show that NLRP3 is activated and contributes to Alzheimer's disease pathology in transgenic mouse model.
•• Venegas C, Kumar S, Franklin BS, Dierkes T, Brinkschulte R, Tejera D, et al. Microglia-derived ASC specks cross-seed amyloid-β in Alzheimer’s disease. Nature. 2017;552(7685):355–61. A very recent remarkable study to reveal that ASC adaptor of inflammasome seeds amyloid-β deposition in the brain of Alzheimer's disease patients or mouse models.
White CS, Lawrence CB, Brough D, Rivers-Auty J. Inflammasomes as therapeutic targets for Alzheimer’s disease. Brain Pathol. 2017;27:223–34.
Daniels MJD, Rivers-Auty J, Schilling T, Spencer NG, Watremez W, Fasolino V, et al. Fenamate NSAIDs inhibit the NLRP3 inflammasome and protect against Alzheimer’s disease in rodent models. Nat Commun. 2016;7:12504.
Sanz JM, Chiozzi P, Ferrari D, Colaianna M, Idzko M, Falzoni S, et al. Activation of microglia by amyloid β requires P2X7 receptor expression. J Immunol. 2009;182:4378–85.
Coll RC, Robertson AAB, Chae JJ, Higgins SC, Muñoz-Planillo R, Inserra MC, et al. A small-molecule inhibitor of the NLRP3 inflammasome for the treatment of inflammatory diseases. Nat Med. 2015;21:248–55.
Acknowledgements
The study was funded by the National Natural Science Foundation of China (81271211; 81471215), Science and technology project of Jiangsu Province (BE2015665; BE2015715), and National Natural Science Foundation of Jiangsu Province (BK20151592).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of Interest
The authors received no financial support in the writing of this manuscript.
Human and Animal Rights and Informed Consent
This article does not contain any studies with human or animal subjects performed by any of the authors.
Additional information
This article is part of the Topical Collection on Immunology and Inflammation
Rights and permissions
About this article
Cite this article
Hong, Y., Xu, J., Hu, Y. et al. Neuroinflammation and Neuroimmunomodulation in Alzheimer’s Disease. Curr Pharmacol Rep 4, 408–413 (2018). https://doi.org/10.1007/s40495-018-0148-z
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40495-018-0148-z