Complement C3aR depletion reverses HIF-1α–induced metabolic impairment and enhances microglial response to Aβ pathology

M Gedam, MM Comerota, NE Propson… - The Journal of …, 2023 - Am Soc Clin Investig
Microglia are the major cell type expressing complement C3a receptor (C3aR) in the brain.
Using a knockin mouse line in which a Td-tomato reporter is incorporated into the …

Prevention of C5aR1 signaling delays microglial inflammatory polarization, favors clearance pathways and suppresses cognitive loss

MX Hernandez, S Jiang, TA Cole, SH Chu… - Molecular …, 2017 - Springer
Background Pharmacologic inhibition of C5aR1, a receptor for the complement activation
proinflammatory fragment, C5a, suppressed pathology and cognitive deficits in Alzheimer's …

Astrocyte-microglia cross talk through complement activation modulates amyloid pathology in mouse models of Alzheimer's disease

H Lian, A Litvinchuk, ACA Chiang… - Journal of …, 2016 - Soc Neuroscience
Increasing evidence supports a role of neuroinflammation in the pathogenesis of
Alzheimer's disease (AD). Previously, we identified a neuron–glia signaling pathway …

Heterozygous CX3CR1 deficiency in microglia restores neuronal β-amyloid clearance pathways and slows progression of Alzheimer's like-disease in PS1-APP mice

SE Hickman, EK Allison, U Coleman… - Frontiers in …, 2019 - frontiersin.org
CX3CR1 is a chemokine receptor expressed on microglia that binds Fractalkine (CX3CL1)
and regulates microglial recruitment to sites of neuroinflammation. Full deletion of CX3CR1 …

Blockage of CR1 prevents activation of rodent microglia

H Crehan, J Hardy, J Pocock - Neurobiology of disease, 2013 - Elsevier
The importance of the complement system in Alzheimer's disease (AD) pathogenesis has
been emphasized through recent genome wide association studies. However, the cellular …

Complement C3 deficiency protects against neurodegeneration in aged plaque-rich APP/PS1 mice

Q Shi, S Chowdhury, R Ma, KX Le, S Hong… - Science translational …, 2017 - science.org
The complement cascade not only is an innate immune response that enables removal of
pathogens but also plays an important role in microglia-mediated synaptic refinement during …

[HTML][HTML] CX3CR1 deficiency alters microglial activation and reduces beta-amyloid deposition in two Alzheimer's disease mouse models

S Lee, NH Varvel, ME Konerth, G Xu… - The American journal of …, 2010 - Elsevier
Microglia, the primary immune effector cells in the brain, continually monitor the tissue
parenchyma for pathological alterations and become activated in Alzheimer's disease. Loss …

Complement C3 deficiency leads to accelerated amyloid β plaque deposition and neurodegeneration and modulation of the microglia/macrophage phenotype in …

M Maier, Y Peng, L Jiang, TJ Seabrook… - Journal of …, 2008 - Soc Neuroscience
Complement factor C3 is the central component of the complement system and a key
inflammatory protein activated in Alzheimer's disease (AD). Previous studies demonstrated …

NFκB-activated astroglial release of complement C3 compromises neuronal morphology and function associated with Alzheimer's disease

H Lian, L Yang, A Cole, L Sun, ACA Chiang… - Neuron, 2015 - cell.com
Abnormal NFκB activation has been implicated in Alzheimer's disease (AD). However, the
signaling pathways governing NFκB regulation and function in the brain are poorly …

Microglial complement receptor 3 regulates brain Aβ levels through secreted proteolytic activity

E Czirr, NA Castello, KI Mosher… - Journal of Experimental …, 2017 - rupress.org
Recent genetic evidence supports a link between microglia and the complement system in
Alzheimer's disease (AD). In this study, we uncovered a novel role for the microglial …