The adhesion and migration of microglia to β-amyloid (Aβ) is decreased with aging and inhibited by Nogo/NgR pathway
Open accessAbstract
Alzheimer’s disease is characterized by progressive accumulation of β-amyloid (Aβ)-containing amyloid plaques, and microglia play a critical role in internalization and degradation of Aβ. Our previous research confirmed that Nogo-66 binding to Nogo receptors (NgR) expressed on microglia inhibits cell adhesion and migration in vitro. The adhesion and migration of microglia isolated from WT and APP/PS1 mice from different ages were measured by adhesion assays and transwells. After NEP1-40 (a competitive antagonist of Nogo/NgR pathway) was intracerebroventricularly administered via mini-osmotic pumps for 2 months in APP/PS1 transgenic mice, microglial recruitment toward Aβ deposits and CD36 expression were determined. In this paper, we found that aging led to a reduction of microglia adhesion and migration to fAβ 1–42 in WT and APP/PS1 mice. The adhesion and migration of microglia to fAβ 1–42 were downregulated by the Nogo, which was mediated by NgR, and the increased inhibitory effects of the Nogo could be observed in aged mice. Moreover, Rho GTPases contributed to the effects of the Nogo on adhesion and migration of microglia to fAβ 1–42 by regulating cytoskeleton arrangement. Furthermore, blocking the Nogo/NgR pathway enhanced recruitment of microglia toward Aβ deposits and expression of CD36 in APP/PS1 mice. Taken together, Nogo/NgR pathway could take part in Aβ pathology in AD by modulating microglial adhesion and migration to Aβ and the Nogo/NgR pathway might be an important target for treating AD.
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Aging reduces microglial adhesion and migration toward fibrillar Aβ in APP/PS1 mice and even in wild-type mice.
“It has been shown that aging reduces microglial adhesion and migration toward fibrillar Aβ in APP/PS1 mice and even in wild-type mice [23].”
From Enhanced microglial dynamics and a paucity of tau seeding in the amyloid plaque microenvironment contribute to cognitive resilience in Alzheimer’s disease (2024) · cites this paper as [23]
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Cites
Microglial Dysfunction and Defective β-Amyloid Clearance Pathways in Aging Alzheimer's Disease Mice
Hickman, S. E., Allison, E. K., & El Khoury, J. (2008) · The Journal of Neuroscience · doi:10.1523/jneurosci.0616-08.2008 · Cited by 1,329 · cited 1× · see citing works
“Moreover, in line with progression of AD pathology, proinflammatory cytokines reduce expressions of Aβ-binding receptors and Aβ-degrading enzymes and further decrease ability of microglial Aβ clearance [11].”
BackgroundScavenger receptor-mediated adhesion of microglia to β-amyloid fibrils
Khoury, J. E., Hickman, S. E., Thomas, C. A., Cao, L., Silverstein, S. C., & Loike, J. D. (1996) · Nature · doi:10.1038/382716a0 · Cited by 727 · see citing works
The role of microglia in amyloid clearance from the AD brain
Lee, C. Y. D., & Landreth, G. E. (2010) · Journal of Neural Transmission · doi:10.1007/s00702-010-0433-4 · Cited by 701 · see citing works
Eimer, W. A., & Vassar, R. (2013) · Molecular Neurodegeneration · doi:10.1186/1750-1326-8-2 · Cited by 425 · see citing works
Coraci, I. S., Husemann, J., Berman, J. W., Hulette, C., Dufour, J. H., Campanella, G. K., Luster, A. D., Silverstein, S. C., & El Khoury, J. B. (2002) · The American Journal of Pathology · doi:10.1016/s0002-9440(10)64354-4 · Cited by 398 · see citing works
Yamanaka, M., Ishikawa, T., Griep, A., Axt, D., Kummer, M. P., & Heneka, M. T. (2012) · The Journal of Neuroscience · doi:10.1523/jneurosci.1569-12.2012 · Cited by 326 · see citing works
Flagged first, then by citations
Research works printed but not linked: 64
- [1]Ballard C Gauthier S Corbett A Brayne C Aarsland D Jones E Alzheimer’s disease Lancet 2011 377 1019 1031 10.1016/S0140-6736(10)61349-9 21371747 · DOI · Paper page
- [2]Ferretti M Cuello A Does a pro-inflammatory process precede Alzheimer’s disease and mild cognitive impairment? Curr Alzheimer Res 2011 8 164 174 10.2174/156720511795255982 21345170 · DOI
- [3]Mizuno T The biphasic role of microglia in Alzheimer’s disease Int J Alzheimers Dis 2012 2012 737846 22655214 PMC3357927
- [4]Li Y Tan M Jiang T Tan L Microglia in Alzheimer’s disease Biomed Res Int 2014 2014 437483 25197646 PMC4150406
- [5]Mrak R Griffin W Glia and their cytokines in progression of neurodegeneration Neurobiol Aging 2005 26 349 354 10.1016/j.neurobiolaging.2004.05.010 15639313 · DOI · Paper page
- [6]Sastre M Walter J Gentleman SM Interactions between APP secretases and inflammatory mediators J Neuroinflammation 2008 5 25 10.1186/1742-2094-5-25 18564425 PMC2442055 · DOI
- [7]Yan S Chen X Fu J Chen M Zhu H Roher A Slattery T Zhao L Nagashima M Morser J RAGE and amyloid-beta peptide neurotoxicity in Alzheimer’s disease Nature 1996 382 685 691 10.1038/382685a0 8751438 · DOI · Paper page
- [9]Simard AR Soulet D Gowing G Julien JP Rivest S Bone marrow-derived microglia play a critical role in restricting senile plaque formation in Alzheimer’s disease Neuron 2006 49 489 502 10.1016/j.neuron.2006.01.022 16476660 · DOI · Paper page
- [10]Floden A Combs C Microglia demonstrate age-dependent interaction with amyloid-β fibrils J Alzheimers Dis 2011 25 279 293 10.3233/JAD-2011-101014 21403390 PMC3295838 · DOI
- [12]GrandPré T Nakamura F Vartanian T Strittmatter SM Identification of the Nogo inhibitor of axon regeneration as a reticulon protein Nature 2000 403 439 444 10.1038/35000226 10667797 · DOI
- [13]He Z Koprivica V The Nogo signaling pathway for regeneration block Annu Rev Neurosci 2004 27 341 368 10.1146/annurev.neuro.27.070203.144340 15217336 · DOI
- [14]Fournier A GrandPre T Strittmatter S Identification of a receptor mediating Nogo-66 inhibition of axonal regeneration Nature 2001 409 341 346 10.1038/35053072 11201742 · DOI
- [15]Prinjha R Moore S Vinson M Blake S Morrow R Christie G Michalovich D Simmons D Walsh F Inhibitor of neurite outgrowth in humans Nature 2000 403 383 384 10.1038/35000287 10667780 · DOI
- [16]Gil V Nicolas O Mingorance A Ureña JM Tang BL Hirata T Sáez-Valero J Ferrer I Soriano E del Río JA Nogo-A expression in the human hippocampus in normal aging and in Alzheimer disease J Neuropathol Exp Neurol 2006 65 433 444 10.1097/01.jnen.0000222894.59293.98 16772867 · DOI
- [17]Zhu H Guo H Hou H Liu Y Sheng S Zhou J Increased expression of the Nogo receptor in the hippocampus and its relation to the neuropathology in Alzheimer’s disease Hum Pathol 2007 38 426 434 10.1016/j.humpath.2006.09.010 17188332 · DOI
- [18]Vanguilder Starkey HD Sonntag WE Freeman WM Increased hippocampal NgR1 signaling machinery in aged rats with deficits of spatial cognition Eur J Neurosci 2013 37 1643 1658 10.1111/ejn.12165 23438185 PMC3660548 · DOI
- [19]Park JH Gimbel DA Grandpre T Lee JK Kim JE Li W Lee DHS Strittmatter SM Alzheimer precursor protein interaction with the Nogo-66 receptor reduces amyloid-beta plaque deposition J Neurosci 2006 26 1386 1395 10.1523/JNEUROSCI.3291-05.2006 16452662 PMC2846286 · DOI
- [20]Masliah E Xie F Dayan S Rockenstein E Mante M Adame A Patrick CM Chan AF Zheng B Genetic deletion of Nogo/Rtn4 ameliorates behavioral and neuropathological outcomes in amyloid precursor protein transgenic mice Neuroscience 2010 169 488 494 10.1016/j.neuroscience.2010.04.045 20433905 PMC2900402 · DOI
- [21]Park JH Widi GA Gimbel DA Harel NY Lee DH Strittmatter SM Subcutaneous Nogo receptor removes brain amyloid-beta and improves spatial memory in Alzheimer’s transgenic mice J Neurosci 2006 26 13279 13286 10.1523/JNEUROSCI.4504-06.2006 17182778 PMC2856604 · DOI
- [22]Yan J Zhou X Guo JJ Mao L Wang YJ Sun J Sun LX Zhang LY Zhou XF Liao H Nogo-66 inhibits adhesion and migration of microglia via Gtpase Rho pathway in vitro J Neurochem 2012 120 721 731 10.1111/j.1471-4159.2011.07619.x 22145612 · DOI
- [23]Fang Y Yan J Li C Zhou X Yao L Pang T Yan M Zhang L Mao L Liao H The Nogo/Nogo receptor (NgR) signal is involved in euroinflammation through the regulation of microglial inflammatory activation J Biol Chem 2015 290 28901 28914 10.1074/jbc.M115.678326 26472924 PMC4661404 · DOI
- [24]Fang Y, Yao L, Li C, Wang J, Wang J, Chen S, Zhou X, Liao H. The blockage of the Nogo/NgR signal pathway in microglia alleviates the formation of Aβ plaques and tau phosphorylation in APP/PS1 transgenic mice. J Neuroinflammation. 2016;13(1):56. PMC4776389 26939570
- [25]Liu G Ni J Mao L Yan M Pang T Liao H Expression of Nogo receptor 1 in microglia during development and following traumatic brain injury Brain Res 2015 1627 41 51 10.1016/j.brainres.2015.09.006 26367446 · DOI
- [26]Moussaud S Draheim H A new method to isolate microglia from adult mice and culture them for an extended period of time J Neurosci Methods 2010 187 243 253 10.1016/j.jneumeth.2010.01.017 20097228 · DOI
- [27]Nikodemova M Watters JJ Efficient isolation of live microglia with preserved phenotypes from adult mouse brain J Neuroinflammation 2012 9 73 76 10.1186/1742-2094-9-147 22742584 PMC3418565 · DOI
- [28]Floden A Li S Combs C Beta-amyloid-stimulated microglia induce neuron death via synergistic stimulation of tumor necrosis factor alpha and NMDA receptors J Neurosci 2005 25 2566 2575 10.1523/JNEUROSCI.4998-04.2005 15758166 PMC6725188 · DOI
- [29]Sondag CM Dhawan G Combs CK Beta amyloid oligomers and fibrils stimulate differential activation of primary microglia J Neuroinflammation 2009 6 328 335 10.1186/1742-2094-6-1 PMC2632990 19123954 · DOI · Paper page
- [30]Weinberg RP Koledova VV Shin H Park JH Tan YA Sinskey AJ Sambanthamurthi R Rha CK Oil palm phenolics inhibit the in vitro aggregation of β-amyloid peptide into oligomeric complexes Int J Alzheimers Dis 2018 2018 1 12 10.1155/2018/7608038 PMC5831689 29666700 · DOI
- [31]Chen T, Wang J, Li C, Zhang W, Zhang L, An L, Pang T, Shi X, Liao H. Nafamostat mesilate attenuates neuronal damage in a rat model of transient focal cerebral ischemia through thrombin inhibition. Sci Rep. 2014;4:5531. PMC4078306 24985053
- [32]Dickson D Farlo J Davies P Crystal H Fuld P Yen S Alzheimer’s disease. A double-labeling immunohistochemical study of senile plaques Am J Pathol 1988 132 86 101 2456021 PMC1880629
- [33]McGeer P Akiyama H Itagaki S McGeer E Immune system response in Alzheimer’s disease Can J Neurol Sci 1989 16 516 527 10.1017/S0317167100029863 2804814 · DOI
- [34]Rozemuller J Eikelenboom P Pals S Stam F Microglial cells around amyloid plaques in Alzheimer’s disease express leucocyte adhesion molecules of the LFA-1 family Neurosci Lett 1989 101 288 292 10.1016/0304-3940(89)90547-8 2549464 · DOI
- [35]Chen K Iribarren P Hu J Chen J Gong W Cho EH Lockett S Dunlop NM Wang JM Activation of Toll-like receptor 2 on microglia promotes cell uptake of Alzheimer disease-associated amyloid beta peptide J Biol Chem 2006 281 3651 3659 10.1074/jbc.M508125200 16339765 · DOI · Paper page
- [36]Shaffer L Dority M Gupta-Bansal R Frederickson R Younkin S Brunden K Amyloid beta protein (A beta) removal by neuroglial cells in culture Neurobiol Aging 1995 16 737 745 10.1016/0197-4580(95)00055-J 8532106 · DOI
- [37]Floden A Combs C Beta-amyloid stimulates murine postnatal and adult microglia cultures in a unique manner J Neurosci 2006 26 4644 4648 10.1523/JNEUROSCI.4822-05.2006 16641245 PMC6674057 · DOI · Paper page
- [38]Becher B Antel JP Comparison of phenotypic and functional properties of immediately ex vivo and cultured human adult microglia Glia 1996 18 1 10 10.1002/(SICI)1098-1136(199609)18:1<1::AID-GLIA1>3.0.CO;2-6 8891687 · DOI
- [39]Slepko N Levi G Progressive activation of adult microglial cells in vitro Glia 1996 16 241 246 10.1002/(SICI)1098-1136(199603)16:3<241::AID-GLIA6>3.0.CO;2-4 8833194 · DOI
- [40]Frank MG Wieseler-Frank JL Watkins LR Maier SF Rapid isolation of highly enriched and quiescent microglia from adult rat hippocampus: immunophenotypic and functional characteristics J Neurosci Methods 2006 151 121 130 10.1016/j.jneumeth.2005.06.026 16125247 · DOI
- [41]Grand Pré T Li S Stephen MS Nogo-66 receptor antagonist peptide promotes axonal regeneration Nature 2002 417 547 551 10.1038/417547a 12037567 · DOI
- [42]Raftopoulou M Hall A Cell migration: Rho GTPases lead the way Dev Biol 2004 265 23 32 10.1016/j.ydbio.2003.06.003 14697350 · DOI
- [43]Ishizaki T Uehata M Tamechika I Keel J Nonomura K Maekawa M Narumiya S Pharmacological properties of Y-27632, a specific inhibitor of rho-associated kinases Mol Pharmacol 2000 57 976 983 10779382
- [44]Fournier A Takizawa B Strittmatter S Rho kinase inhibition enhances axonal regeneration in the injured CNS J Neurosci 2003 23 1416 1423 10.1523/JNEUROSCI.23-04-01416.2003 12598630 PMC6742251 · DOI
- [45]Kubo T Hata K Yamaguchi A Yamashita T Rho-ROCK inhibitors as emerging strategies to promote nerve regeneration Curr Pharm Des 2007 13 2493 2499 10.2174/138161207781368657 17692017 · DOI
- [46]Jin X Liu Y Liu J Lu W Liang Z Zhang D Liu G Zhu H Xu N Liang S The overexpression of IQGAP1 and β-catenin is associated with tumor progression in hepatocellular carcinoma in vitro and in vivo PLoS One 2015 10 e0133770 10.1371/journal.pone.0133770 26252773 PMC4529304 · DOI
- [47]Michael H Akina H Casey B Sang-Nam L Nikolai L Otzen DE Eriksen JL Iris L The neuroendocrine protein 7B2 suppresses the aggregation of neurodegenerative disease-related proteins* J Biol Chem 2013 288 1114 1124 10.1074/jbc.M112.417071 23172224 PMC3542996 · DOI
- [51]Bamberger ME Harris ME McDonald D Husemann J Landreth GE A cell surface receptor complex for fibrillar beta-amyloid mediates microglial activation J Neurosci 2003 23 2665 2674 10.1523/JNEUROSCI.23-07-02665.2003 12684452 PMC6742111 · DOI · Paper page
- [52]Stuart L Bell S Stewart C Silver J Richard J Goss J Tseng A Zhang A El Khoury J Moore K CD36 signals to the actin cytoskeleton and regulates microglial migration via a p130Cas complex J Biol Chem 2007 282 27392 27401 10.1074/jbc.M702887200 17623670 · DOI
- [53]Su Z Cao L Zhu Y Liu X Huang Z Huang A He C Nogo enhances the adhesion of olfactory ensheathing cells and inhibits their migration J Cell Sci 2007 120 1877 1887 10.1242/jcs.03448 17488779 · DOI
- [54]Hall A Rho GTPases and the actin cytoskeleton Science 1998 279 509 514 10.1126/science.279.5350.509 9438836 · DOI
- [55]Aspenström P The Rho GTPases have multiple effects on the actin cytoskeleton Exp Cell Res 1999 246 20 25 10.1006/excr.1998.4300 9882511 · DOI
- [56]Etienne-Manneville S Hall A Rho GTPases in cell biology Nature 2002 420 629 635 10.1038/nature01148 12478284 · DOI
- [57]Kraynov V Chamberlain C Bokoch G Schwartz M Slabaugh S Hahn K Localized Rac activation dynamics visualized in living cells Science 2000 290 333 337 10.1126/science.290.5490.333 11030651 · DOI
- [58]Mendoza-Naranjo A Gonzalez-Billault C Maccioni R Abeta1-42 stimulates actin polymerization in hippocampal neurons through Rac1 and Cdc42 Rho GTPases J Cell Sci 2007 120 279 288 10.1242/jcs.03323 17200137 · DOI
- [59]Gitik M Reichert F Rotshenker S Cytoskeleton plays a dual role of activation and inhibition in myelin and zymosan phagocytosis by microglia FASEB J 2010 24 2211 2221 10.1096/fj.09-146118 20179145 · DOI
- [60]Rochelle T Daubon T Van Troys M Harnois T Waterschoot D Ampe C Roy L Bourmeyster N Constantin B p210bcr-abl induces amoeboid motility by recruiting ADF/destrin through RhoA/ROCK1 FASEB J 2013 27 123 134 10.1096/fj.12-205112 23047898 · DOI
- [61]Hsieh SH Ferraro GB Fournier AE Myelin-associated inhibitors regulate cofilin phosphorylation and neuronal inhibition through LIM kinase and Slingshot phosphatase J Neurosci 2006 26 1006 1015 10.1523/JNEUROSCI.2806-05.2006 16421320 PMC6675360 · DOI
- [62]Hadas S Spira M Hanisch U Reichert F Rotshenker S Complement receptor-3 negatively regulates the phagocytosis of degenerated myelin through tyrosine kinase Syk and cofilin J Neuroinflammation 2012 9 166 10.1186/1742-2094-9-166 22776089 PMC3418574 · DOI
- [63]Kuroda S Fukata M Kobayashi K Nakafuku M Nomura N Iwamatsu A Kaibuchi K Identification of IQGAP as a putative target for the small GTPases, Cdc42 and Rac1 J Biol Chem 1996 271 23363 23367 10.1074/jbc.271.38.23363 8798539 · DOI
- [64]Huang X Jin Y Zhou D Xu G Huang J Shen L IQGAP1 promotes the phenotypic switch of vascular smooth muscle by myocardin pathway: a potential target for varicose vein Int J Clin Exp Pathol 2014 7 6475 6485 25400725 PMC4230105
- [65]Gao C Liang C Nie Z Liu Y Wang J Zhang D Alkannin inhibits growth and invasion of glioma cells C6 through IQGAP/mTOR signal pathway Int J Clin Exp Med 2015 8 5287 5294 26131103 PMC4483937
- [66]Cao Y Shumsky J Sabol M Kushner R Strittmatter S Hamers F Lee D Rabacchi S Murray M Nogo-66 receptor antagonist peptide (NEP1-40) administration promotes functional recovery and axonal growth after lateral funiculus injury in the adult rat Neurorehabil Neural Repair 2008 22 262 278 10.1177/1545968307308550 18056009 PMC2853251 · DOI
- [67]Fang P Barbay S Plautz E Hoover E Strittmatter S Nudo R Combination of NEP 1-40 treatment and motor training enhances behavioral recovery after a focal cortical infarct in rats Stroke 2010 41 544 549 10.1161/STROKEAHA.109.572073 20075346 PMC2853474 · DOI
- [69]Khan OM Akula MK Skålen K Karlsson C Ståhlman M Young SG Borén J Bergo MO Targeting GGTase-I activates RHOA, increases macrophage reverse cholesterol transport, and reduces atherosclerosis in mice Circulation 2013 127 782 790 10.1161/CIRCULATIONAHA.112.000588 23334894 PMC3940160 · DOI
- [70]Ruiz-Velasco N Domínguez A Vega MA Statins upregulate CD36 expression in human monocytes, an effect strengthened when combined with PPAR-gamma ligands putative contribution of Rho GTPases in statin-induced CD36 expression Biochem Pharmacol 2004 67 303 313 10.1016/j.bcp.2003.09.006 14698043 · DOI
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Jury-Garfe, N., Redding-Ochoa, J., You, Y., Martínez, P., Karahan, H., Chimal-Juárez, E., Johnson, T. S., Zhang, J., Resnick, S., Kim, J., et al. (2024) · Acta Neuropathologica · doi:10.1007/s00401-024-02775-1 · Cited by 22 · see citing works
“It has been shown that aging reduces micro-glial adhesion and migration toward fibrillar Aβ in APP/ PS1 mice and even in wild-type mice [23].”
Background
- Authors
- Fang, Y., Wang, J., Yao, L., Li, C., Wang, J., Liu, Y., Tao, X., Sun, H., & Liao, H.
- Affiliations
- China Pharmaceutical University (CN)
- Corresponding author
- Liao, Hong
- Venue
- Journal of Neuroinflammation
- Published
- 2018-07-20
- Volume
- 15
- Issue
- 1
- Pages
- 210-210
- ISSN
- 1742-2094 (ISSN-L)
- PMC
- PMC6054753
- OpenAlex
- W2883127413
- Cited by
- 35
- References
- 6
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 1 · 2023: 7 · 2022: 7 · 2021: 5 · 2020: 4 · 2019: 3
- FWCI
- 1.35
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Journal of Neuroinflammation (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- National Natural Science Foundation of China (81271338, 81772063, 81572240)
- China Pharmaceutical University
- Specialized Research Fund for the Doctoral Program of Higher Education of China (20130096110011)
- Topics
- Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
- Keywords
- microglia, amyloid-beta, Nogo-66, Nogo receptor, microglial migration, aging, Alzheimer's disease, APP/PS1 mice, Rho GTPases, cytoskeleton, CD36, NEP1-40, amyloid plaques, microglial recruitment
- MeSH terms
- Nogo Receptors, Nogo Proteins, Aging, Alzheimer Disease, Animals, Brain, Cell Adhesion, Cell Movement, Disease Models, Animal, Humans, Mice, Inbred C57BL, Mice, Transgenic, Myelin Proteins, Peptide Fragments, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, Microglia, rhoA GTP-Binding Protein, cdc42 GTP-Binding Protein, rac1 GTP-Binding Protein, Mice, Presenilin-1
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