PMID- 31985491 OWN - NLM STAT- MEDLINE DCOM- 20201027 LR - 20230224 IS - 1558-8238 (Electronic) IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 130 IP - 3 DP - 2020 Mar 2 TI - Underglycosylated prion protein modulates plaque formation in the brain. PG - 1087-1089 LID - 134842 [pii] LID - 10.1172/JCI134842 [doi] AB - The prion agent is unique in biology and is comprised of prion protein scrapie (PrPSc), a self-templating conformational variant of the host encoded prion protein cellular (PrPC). The deposition patterns of PrPSc in the CNS can vary considerably from a diffuse synaptic pattern to large plaque-like aggregates. Alterations of PrPC posttranslational processing can change PrPSc deposition patterns; however, the mechanism underlying these observations is unclear. In this issue of the JCI, Sevillano and authors determined that parenchymal PrPSc plaques of the mouse brain preferentially incorporated underglycosylated PrPC that had been liberated from the cell surface by the metalloproteinase, ADAM-10, in combination with heparan sulfate. These results provide mechanistic insight into the formation of PrPSc plaques and suggest that PrP posttranslational modifications direct pathogenicity as well as the rate of disease progression. FAU - Bartz, Jason C AU - Bartz JC LA - eng GR - P01 AI077774/AI/NIAID NIH HHS/United States GR - R01 NS103763/NS/NINDS NIH HHS/United States GR - R01 NS107246/NS/NINDS NIH HHS/United States PT - Comment PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (Polysaccharides) RN - 0 (Prion Proteins) RN - 0 (Prions) SB - IM CON - J Clin Invest. 2020 Mar 2;130(3):1350-1362. PMID: 31985492 MH - Animals MH - Brain/metabolism MH - Mice MH - Polysaccharides MH - *Prion Diseases/genetics MH - Prion Proteins/genetics MH - *Prions/genetics/metabolism PMC - PMC7269559 COIS- Conflict of interest: The author has declared that no conflict of interest exists. EDAT- 2020/01/28 06:00 MHDA- 2020/10/28 06:00 PMCR- 2021/03/02 CRDT- 2020/01/28 06:00 PHST- 2020/01/28 06:00 [pubmed] PHST- 2020/10/28 06:00 [medline] PHST- 2020/01/28 06:00 [entrez] PHST- 2021/03/02 00:00 [pmc-release] AID - 134842 [pii] AID - 10.1172/JCI134842 [doi] PST - ppublish SO - J Clin Invest. 2020 Mar 2;130(3):1087-1089. doi: 10.1172/JCI134842.