Transthyretin inhibits primary and secondary nucleations of amyloid-β peptide aggregation and reduces the toxicity of its oligomers

SA Ghadami, S Chia, FS Ruggeri, G Meisl… - …, 2020 - ACS Publications
Alzheimer's disease is associated with the deposition of the amyloid-β peptide (Aβ) into
extracellular senile plaques in the brain. In vitro and in vivo observations have indicated that …

Transthyretin aggregation pathway toward the formation of distinct cytotoxic oligomers

AKR Dasari, RM Hughes, S Wi, I Hung, Z Gan… - Scientific reports, 2019 - nature.com
Abstract Characterization of small oligomers formed at an early stage of amyloid formation is
critical to understanding molecular mechanism of pathogenic aggregation process. Here we …

Inhibiting mTTR aggregation/fibrillation by a chaperone-like hydrophobic amino acid-conjugated SPION

P Arghavani, A Badiei, SA Ghadami… - The Journal of …, 2022 - ACS Publications
Transthyretin (TTR) aggregation via misfolding of a mutant or wild-type protein leads to
systemic or partial amyloidosis (ATTR). Here, we utilized variable biophysical assays to …

Probing conformational changes of monomeric transthyretin with second derivative fluorescence

D Jazaj, SA Ghadami, F Bemporad, F Chiti - Scientific Reports, 2019 - nature.com
We have studied the intrinsic fluorescence spectra of a monomeric variant of human
transthyretin (M-TTR), a protein involved in the transport of the thyroid hormone and retinol …

Effect of molecular chaperones on aberrant protein oligomers in vitro: super-versus sub-stoichiometric chaperone concentrations

S Cappelli, A Penco, B Mannini, R Cascella… - Biological …, 2016 - degruyter.com
Living systems protect themselves from aberrant proteins by a network of chaperones. We
have tested in vitro the effects of different concentrations, ranging from 0 to 16 μm, of two …

The Folding process of Human Profilin-1, a novel protein associated with familial amyotrophic lateral sclerosis

E Del Poggetto, F Chiti, F Bemporad - Scientific reports, 2015 - nature.com
Human profilin-1 is a novel protein associated with a recently discovered form of familial
amyotrophic lateral sclerosis. This urges the characterization of possible conformational …

Structural characterization of an on‐pathway intermediate and transition state in the folding of the N‐terminal SH2 domain from SHP2

L Visconti, F Malagrino, S Gianni, A Toto - The FEBS Journal, 2019 - Wiley Online Library
Src Homology 2 (SH2) domains are a class of protein domains that present a conserved
three‐dimensional structure and possess a crucial role in mediating protein‐protein …

Enhancement of the solubility and stability of D-amino acid oxidase by fusion to an elastin like polypeptide

K Du, J Sun, X Song, C Song, W Feng - Journal of Biotechnology, 2015 - Elsevier
An elastin-like polypeptide (ELP) was fused to d-amino acid oxidases (DAAO). ELP–DAAO
exhibited a better solubility in aqueous solutions than DAAO, and its enzymatic activity is …

Exploration of the misfolding mechanism of transthyretin monomer: insights from hybrid-resolution simulations and markov state model analysis

S Zhou, J Cheng, T Yang, M Ma, W Zhang, S Yuan… - Biomolecules, 2019 - mdpi.com
Misfolding and aggregation of transthyretin (TTR) is widely known to be responsible for a
progressive systemic disorder called amyloid transthyretin (ATTR) amyloidosis. Studies …

FRET studies of various conformational states adopted by transthyretin

SA Ghadami, F Bemporad, BM Sala, G Tiana… - Cellular and Molecular …, 2017 - Springer
Transthyretin (TTR) is an extracellular protein able to deposit into well-defined protein
aggregates called amyloid, in pathological conditions known as senile systemic …