Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8839102 | IBRO Reports | 2018 | 16 Pages |
Abstract
Specific regions of the cerebral cortex are highly plastic in an organism's lifetime. It is thought that perineuronal nets (PNNs) regulate plasticity, but labeling for Wisteria floribunda agglutinin (WFA), which is widely used to detect PNNs, is observed throughout the cortex. The aggrecan molecule-a PNN component-may regulate plasticity, and may also be involved in determining region-specific vulnerability to stress. To clarify cortical region-specific plasticity and vulnerability, we qualitatively analyzed aggrecan-positive and glycosylated aggrecan-positive PNNs in the mature mouse cerebral cortex. Our findings revealed the selective expression of both aggrecan-positive and glycosylated aggrecan-positive PNNs in the cortex. WFA-positive PNNs expressed aggrecan in a region-specific manner in the cortex. Furthermore, we observed variable distributions of PNNs containing WFA- and aggrecan-positive molecules. Together, our findings suggest that PNN components and their function differ depending on the cortical region, and that aggrecan molecules may be involved in determining region-specific plasticity and vulnerability in the cortex.
Keywords
RSDRSGcV2MMV2Lectorhinal cortexLptAV1bDLOAUVAggrecanMPTAPRHS1BFretrosplenial dysgranular cortexECTAu1AudFRAperineuronal netsinfralimbic cortexTemporal association cortexFrontal association cortexlateral orbital cortexdorsolateral orbital cortexVentral orbital cortexprimary motor cortexsecondary motor cortexprimary auditory cortexperirhinal cortexdorsal peduncular cortexprelimbic cortexSecondary somatosensory cortexExtracellular matrixPlasticityTEAchondroitin sulfate proteoglycancingulate cortex
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Authors
Hiroshi Ueno, Kazuki Fujii, Shunsuke Suemitsu, Shinji Murakami, Naoya Kitamura, Kenta Wani, Shozo Aoki, Motoi Okamoto, Takeshi Ishihara, Keizo Takao,