Gene interactions and pathways from curated databases and text-mining
Journal of neuroinflammation 2006, PMID: 16603079

Apolipoprotein E-specific innate immune response in astrocytes from targeted replacement mice.

Maezawa, Izumi; Maeda, Nobuyo; Montine, Thomas J; Montine, Kathleen S

BACKGROUND

Inheritance of the three different alleles of the human apolipoprotein (apo) E gene (APOE) are associated with varying risk or clinical outcome from a variety of neurologic diseases. ApoE isoform-specific modulation of several pathogenic processes, in addition to amyloid beta metabolism in Alzheimer's disease, have been proposed: one of these is innate immune response by glia. Previously we have shown that primary microglia cultures from targeted replacement (TR) APOE mice have apoE isoform-dependent innate immune activation and paracrine damage to neurons that is greatest with TR by the epsilon4 allele (TR APOE4) and that derives from p38 mitogen-activated protein kinase (p38MAPK) activity.

METHODS

Primary cultures of TR APOE2, TR APOE3 and TR APOE4 astrocytes were stimulated with lipopolysaccharide (LPS). ApoE secretion, cytokine production, and nuclear factor-kappa B (NF-kappaB) subunit activity were measured and compared.

RESULTS

Here we showed that activation of primary astrocytes from TR APOE mice with LPS led to TR APOE-dependent differences in cytokine secretion that were greatest in TR APOE2 and that were associated with differences in NF-kappaB subunit activity.

CONCLUSIONS

Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE-dependent activation of p38MAPK or NF-kappaB signaling in these two cell types.

Document information provided by NCBI PubMed

Text Mining Data

p38MAPK → APOE: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

p38MAPK → APOE: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

LPS → p38MAPK: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

LPS → p38MAPK: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

LPS → APOE: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

LPS → NF-kappaB: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

NF-kappaB → APOE: " Our results suggest that LPS activation of innate immune response in TR APOE glia results in opposing outcomes from microglia and astrocytes as a result of TR APOE dependent activation of p38MAPK or NF-kappaB signaling in these two cell types "

Manually curated Databases

No curated data.