ArticleProtein science : a publication of the Protein Society2022
Chaperoning activity of the cyclophilin family prevents tau aggregation.
Article in Protein science : a publication of the Protein Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 14 citations in OpenAlex.
- Dual proximity-based interactome mapping of FKBP51 and FKBP52 uncovers shared metabolic networks.Biochemical and biophysical research communications · 2026Article
- The Hsp40 cochaperone DNAJC7 regulates polyglutamine aggregation and exhibits context-dependent effects on polyglycine aggregation.The Journal of biological chemistry · 2026Article
- Distinctive Gene Expression Profiles and Biological Responses of Skin Fibroblasts to Nicotinamide Mononucleotide: Implications for Longevity Effects on Skin.Biomedicines · 2025Article
- Chaperone-Mediated Regulation of Tau Phase Separation, Fibrillation, and Toxicity.Journal of the American Chemical Society · 2025Article
- A novel role for the peptidyl-prolyl cis-trans isomerase Cyclophilin A in DNA-repair following replication fork stalling via the MRE11-RAD50-NBS1 complex.EMBO reports · 2024Article
- Stress biology: Complexity and multifariousness in health and disease.Cell stress & chaperones · 2024Article
- "Cyclophilin A" Enzymatic Effect on the Aggregation Behavior of 1N4R Tau Protein: An Overlooked Crucial Determinant that should be Re-considered in Alzheimer's Disease Pathogenesis.Current Alzheimer research · 2024Article
- DnaJs are enriched in tau regulators.International journal of biological macromolecules · 2023Article
- Chaperoning activity of the cyclophilin family prevents tau aggregation.Protein science : a publication of the Protein Society · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Tauopathies, such as Alzheimer's disease, are characterized by the misfolding and progressive accumulation of the microtubule associated protein tau. Chaperones, tasked with maintaining protein homeostasis, can become imbalanced with age and contribute to the progression of neurodegenerative disease. Cyclophilins are a promising pool of underinvestigated chaperones with peptidyl-prolyl isomerase activity that may play protective roles in regulating tau aggregation. Using a Thioflavin T fluorescence-based assay to monitor in vitro tau aggregation, all eight cyclophilins, which include PPIA to PPIH prevent tau aggregation, with PPIB, PPIC, PPID, and PPIH showing the greatest inhibition. The low thermal stability of PPID and the strong heparin binding of PPIB undermines the simplistic interpretation of reduced tau aggregation. In a cellular model of tau accumulation, all cyclophilins, except PPID and PPIH, reduce insoluble tau. PPIB, PPIC, PPIE, and PPIF also reduce soluble tau levels with PPIC exclusively protecting cells from tau seeding. Overall, this study demonstrates cyclophilins prevent tau fibril formation and many reduce cellular insoluble tau accumulation with PPIC having the greatest potential as a molecular tool to mitigate tau seeding and accumulation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.