| RRC ID |
88555
|
| 著者 |
Muhamad NA, Masutani K, Furukawa S, Yuri S, Toriyama M, Matsumoto C, Itoh S, Shinagawa Y, Isotani A, Toriyama M, Itoh H.
|
| タイトル |
Astrocyte-Specific Inhibition of the Primary Cilium Suppresses C3 Expression in Reactive Astrocyte.
|
| ジャーナル |
Cell Mol Neurobiol
|
| Abstract |
C3-positive reactive astrocytes play a neurotoxic role in various neurodegenerative diseases. However, the mechanisms controlling C3-positive reactive astrocyte induction are largely unknown. We found that the length of the primary cilium, a cellular organelle that receives extracellular signals was increased in C3-positive reactive astrocytes, and the loss or shortening of primary cilium decreased the count of C3-positive reactive astrocytes. Pharmacological experiments suggested that Ca2+ signalling may synergistically promote C3 expression in reactive astrocytes. Conditional knockout (cKO) mice that specifically inhibit primary cilium formation in astrocytes upon drug stimulation exhibited a reduction in the proportions of C3-positive reactive astrocytes and apoptotic cells in the brain even after the injection of lipopolysaccharide (LPS). Additionally, the novel object recognition (NOR) score observed in the cKO mice was higher than that observed in the neuroinflammation model mice. These results suggest that the primary cilium in astrocytes positively regulates C3 expression. We propose that regulating astrocyte-specific primary cilium signalling may be a novel strategy for the suppression of neuroinflammation.
|
| 巻・号 |
44(1)
|
| ページ |
48
|
| 公開日 |
2024-6-1
|
| DOI |
10.1007/s10571-024-01482-5
|
| PII |
10.1007/s10571-024-01482-5
|
| PMID |
38822888
|
| PMC |
PMC11144130
|
| MeSH |
Animals
Apoptosis / drug effects
Astrocytes* / drug effects
Astrocytes* / metabolism
Cilia* / drug effects
Cilia* / metabolism
Complement C3 / metabolism
Lipopolysaccharides / pharmacology
Mice
Mice, Inbred C57BL
Mice, Knockout*
|
| リソース情報 |
| 実験動物マウス |
RBRC02350 |
