Protective Effect of a Hexapeptide Derived from Rotifer-Specific SCO-Spondin Against Beta-Amyloid Toxicity

The Rotimer (rotifer-specific biopolymer) like SCO-spondin (R-SSPO/1), predicted as the main component of this biopolymer, is an adequate base for the design of functional small peptides. This macromolecule is interactive and protective against neurotoxic human-type beta-amyloid 1-42 aggregates (agg...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Datki Zsolt László
Sinka Rita
Dingmann Brian J
Gálik Bence
Szabó Antal
Galik-Olah Zita
Tóth Gábor
Bozsó Zsolt
Dokumentumtípus: Cikk
Megjelent: 2025
Sorozat:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 26 No. 11
Tárgyszavak:
doi:10.3390/ijms26115109

mtmt:36194786
Online Access:http://publicatio.bibl.u-szeged.hu/37256
Leíró adatok
Tartalmi kivonat:The Rotimer (rotifer-specific biopolymer) like SCO-spondin (R-SSPO/1), predicted as the main component of this biopolymer, is an adequate base for the design of functional small peptides. This macromolecule is interactive and protective against neurotoxic human-type beta-amyloid 1-42 aggregates (agg-Abeta). The current work presents biological investigations and predictable molecular interaction analysis of DSSNDL and PNCRDGSDE peptides that were synthesized based on the sequences of R-SSPO/1. Viability assays (NADH-dependent cellular reduction capacity, intracellular esterase activity, and motility) were performed on differentiated neuro-type cell cultures (SH-SY5Y and PC12) and on Rotimer-depleted rotifers (Euchlanis dilatata and Lecane bulla). A control peptide (STTRPTGTT), not found in Rotimer, was also included in the study. All three peptides are present in both rotifer and human proteomes. Among these small molecules, DSSNDL showed a significant protective effect against the toxicity of agg-Abeta both in vitro and in vivo and presumably interacted with its aggregates. The stagogram analysis of amyloid-peptide complexes and the possible bonding competition of these small molecules against aggregation-specific dyes on agg-Abeta surface suggest that DSSNDL affects the properties of these neurotoxic macromolecules. This effective hexapeptide can serve as a promising candidate for further investigations into the inactivation of beta-amyloid toxicity.
Terjedelem/Fizikai jellemzők:16
ISSN:1661-6596