| abstract |
The present invention examined the accumulation of chondroitin sulfate proteoglycans (CSPGs). The present invention relates to neurodegeneration-suppressing agents that are suitable for gene therapy or prevention of neural fibrotic degenerative diseases which induce neural cell death due to an accumulation of abnormal proteins, where the therapies are based on siRNAs against N-acetylgalactosamine-4-O-sulfotransferases (N-acetylgalactosamine-4-O-sulfotransferase-1, N-acetylgalactosamine-4-O-sulfotransferase-2, and N-acetylgalactosamine-4-sulfate 6-O-sulfotransferase (GalNAc4ST-1, GalNAc4ST-2, and GALNAC4S-6ST, respectively)), which are sulfotransferases for acetylgalactosamine, a CSPG side chain, and chondroitinase ABC, an enzyme that degrades chondroitin sulfate, another CSPG side chain. |