Aβ receptors specifically recognize molecular features displayed by fibril ends and neurotoxic oligomers.
Aβ receptors specifically recognize molecular features displayed by fibril ends and neurotoxic oligomers.
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DOI:
10.1038/s41467-021-23507-z
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发表时间:
2021-06-08
影响因子:
16.6
通讯作者:
Harris DA
中科院分区:
文献类型:
--
作者:
Amin L;Harris DA
Several cell-surface receptors for neurotoxic forms of amyloid-β (Aβ) have been described, but their molecular interactions with Aβ assemblies and their relative contributions to mediating Alzheimer’s disease pathology have remained uncertain. Here, we used super-resolution microscopy to directly visualize Aβ-receptor interactions at the nanometer scale. We report that one documented Aβ receptor, PrPC, specifically inhibits the polymerization of Aβ fibrils by binding to the rapidly growing end of each fibril, thereby blocking polarized elongation at that end. PrPC binds neurotoxic oligomers and protofibrils in a similar fashion, suggesting that it may recognize a common, end-specific, structural motif on all of these assemblies. Finally, two other Aβ receptors, FcγRIIb and LilrB2, affect Aβ fibril growth in a manner similar to PrPC. Our results suggest that receptors may trap Aβ oligomers and protofibrils on the neuronal surface by binding to a common molecular determinant on these assemblies, thereby initiating a neurotoxic signal. PrPC, a receptor for Aβ oligomers, blocks polarized elongation of Aβ fibrils by binding to the rapidly growing end of each fibril. PrPC and other receptors may trap Aβ oligomers and protofibrils on the neuronal surface by binding to a common molecular determinant, initiating a neurotoxic signal.
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DOI:
10.1126/science.aao2825
发表时间:
2017-10-06
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gremer L;Schölzel D;Schenk C;Reinartz E;Labahn J;Ravelli RBG;Tusche M;Lopez-Iglesias C;Hoyer W;Heise H;Willbold D;Schröder GF
通讯作者:
Schröder GF
影响因子:
16.6
作者:
Freir, Darragh B.;Nicoll, Andrew J.;Klyubin, Igor;Panico, Silvia;Mc Donald, Jessica M.;Risse, Emmanuel;Asante, Emmanuel A.;Farrow, Mark A.;Sessions, Richard B.;Saibil, Helen R.;Clarke, Anthony R.;Rowan, Michael J.;Walsh, Dominic M.;Collinge, John
通讯作者:
Collinge, John
影响因子:
16.6
作者:
Arosio P;Michaels TC;Linse S;Månsson C;Emanuelsson C;Presto J;Johansson J;Vendruscolo M;Dobson CM;Knowles TP
通讯作者:
Knowles TP
影响因子:
4.6
作者:
Aulić S;Masperone L;Narkiewicz J;Isopi E;Bistaffa E;Ambrosetti E;Pastore B;De Cecco E;Scaini D;Zago P;Moda F;Tagliavini F;Legname G
通讯作者:
Legname G
影响因子:
11.1
作者:
Calella, Anna Maria;Farinelli, Melissa;Aguzzi, Adriano
通讯作者:
Aguzzi, Adriano