Cited by 52

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Apolipoprotein E Attenuates β‐Amyloid‐Induced Astrocyte Activation

Hu, Jingru, LaDu, Mary Jo, Van Eldik, Linda J.·1998·Journal of Neurochemistry

Abstract

Abstract: A common feature of Alzheimer's disease pathology is an abundance of activated glia, indicative of an inflammatory reaction in the brain. The relationship between glial activation and neurodegeneration is not known, although several cytokines and inflammatory mediators produced by activated glia have the potential to initiate or exacerbate the progression of neuropathology. As β‐amyloid (Aβ) is one of several stimuli that can activate glia, it is important to determine how Aβ‐induced glial activation is influenced by other proteins present in the plaque, such as apolipoprotein E (apoE). We examined the effect of native preparations of apoE on activation of rat cortical astrocyte cultures by Aβ1–42. The apoE source was conditioned medium from human embryonic kidney 293 cells stably transfected with human apoE3 or apoE4 cDNA. By morphological criteria, apoE inhibited Aβ‐induced astrocyte activation in three experimental paradigms: apoE pretreatment blocked subsequent Aβ‐induced activation, Aβ aged in the presence of apoE did not activate astrocytes, and apoE addition to activated astrocytes transiently reversed the activated phenotype. No apoE isoform selectivity was observed. The effect of apoE appears to be specific to Aβ, as apoE did not attenuate cyclic AMP‐induced astrocyte activation. These data suggest that apoE may modulate the ability of Aβ to induce inflammatory responses in the brain.

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Registry

Crossref · 10.1046/j.1471-4159.1998.71041626.x

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7 of 7 references verified0 citation errors · 0 not checkable

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  • ApoE-containing particles inhibit Aβ-induced activation of primary rat astrocyte cultures.

    “This activation is inhibited by the addition of exogenous apoE-containing particles (38).”
  • Aged Aβ1-42 is a mixture of fibrils and soluble globular aggregates, active to astrocytes and toxic to neurons.

    “A␤ 1-42 aged according to this protocol is a mixture of fibrils and soluble globular aggregates, and is active to astrocytes (37,38) and toxic to neurons (26,27).”
  • Exogenous apoE attenuates the activity of Aβ in both astrocytes and neurons.

    “This hypothesis is also consistent with our previous results demonstrating that exogenous apoE attenuates the activity of A␤ in both astrocytes and neurons (25,38).”
  • The addition of exogenous apoE protects against Aβ-induced toxicity in neuronal cell cultures and against Aβ-induced activation of astrocyte cultures.

    “The addition of exogenous apoE protects against A␤-induced toxicity in neuronal cell cultures, as well as A␤-induced activation of astrocyte cultures (24,25,38,52,53).”

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Metadata

Authors
Hu, J., LaDu, M. J., & Van Eldik, L. J.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
1998-10
Volume
71
Issue
4
Pages
1626-1634
ISSN
  • 0022-3042
  • 1471-4159
Cited by
52
References
7
Language
en

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