ArticleAlzheimer's research & therapy2023
Five-mer peptides prevent short-term spatial memory deficits in Aβ25-35-induced Alzheimer's model mouse by suppressing Aβ25-35 aggregation and resolving its aggregate form.
Article in Alzheimer's research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 14 citations in OpenAlex.
- The medial septal-medial habenula cholinergic circuit: A new mechanism of exercise improving cognitive function in AD mice.Journal of sport and health science · 2025Article
- Sex-related upregulation of bone morphogenetic protein signaling inhibits adult neurogenesis in APPBiology of sex differences · 2025Article
- In Vivo Seeding of Amyloid-β Protein and Implications in Modeling Alzheimer's Disease Pathology.Biomolecules · 2025Review
- Changes in iPSC-astrocyte morphology reflect Alzheimer's disease patient clinical markers.Stem cells (Dayton, Ohio) · 2025Article
- An 11-mer Synthetic Peptide Suppressing Aggregation of Aβ25-35 and Resolving Its Aggregated Form Improves Test Performance in an Aβ25-35-Induced Alzheimer's Mouse Model.Biomolecules · 2024Article
- Anthocyanin-Rich Fraction of Black Rice Bran Extract Protects against Amyloid β-Induced Oxidative Stress, Endoplasmic Reticulum Stress, and Neuronal Apoptosis in SK-N-SH Cells.Pharmaceuticals (Basel, Switzerland) · 2024Article
- SKGQA, a Peptide Derived from the ANA/BTG3 Protein, Cleaves Amyloid-β with Proteolytic Activity.Biomolecules · 2024Article
- Synthesis of symmetrical and unsymmetrical tetrahydroxybiphenyls and their evaluation as amyloid-β aggregation inhibitors.Letters in organic chemistry · 2024Article
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5 authors at 2 institutions in 1 country.
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Abstract
backgroundThe development of drugs for Alzheimer's disease (AD), which is related to the misfolding and aggregation of amyloid-β (Aβ), is high in demand due to the growing number of AD patients. In this study, we screened 22 kinds of 5-mer synthetic peptides derived from the Box A region of Tob1 protein to find a peptide effective against Aβ aggregation.
methodsA Thioflavin T (ThT) assay was performed to evaluate aggregation and screen aggregation inhibitors. Male ICR mice (6 weeks old) were administered saline, 9 nmol Aβ25-35, or a mixture of 9 nmol Aβ25-35 and 9 nmol GSGFK in the right lateral ventricle. Short-term spatial memory was assessed through Y-maze. Microglia cells (BV-)2 cells were plated on 24-well plates (4 × 10
resultsWe found two kinds of peptides, GSGNR and GSGFK, that were not only suppressed by aggregation of Aβ25-35 but also resolved the aggregated Aβ25-35. Results obtained from the Y-maze test on an Aβ25-35-induced AD model mouse indicated that GSGFK prevents the deficits in short-term memory induced by Aβ25-35. The effect of GSGFK on phagocytosis in BV-2 cells proved that GSGFK activates the phagocytic ability of microglia.
conclusionsIn conclusion, 5-mer peptides prevent short-term memory deficit in Aβ25-35 induced AD model mouse by reducing the aggregated Aβ25-35. They may also upregulate the phagocytic ability of microglia, which makes 5-mer peptides suitable candidates as therapeutic drugs against AD.
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