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Martins2013 - True and apparent inhibition of amyloid fribril formation


ABSTRACT: Martins2013 - True and apparent inhibition of amyloid fribril formation This model is described in the article: True and apparent inhibition of amyloid fibril formation. Martins PM. Prion 2013 Mar-Apr; 7(2): 136-139 Abstract: A possible therapeutic strategy for amyloid diseases involves the use of small molecule compounds to inhibit protein assembly into insoluble aggregates. According to the recently proposed Crystallization-Like Model, the kinetics of amyloid fibrillization can be retarded by decreasing the frequency of new fibril formation or by decreasing the elongation rate of existing fibrils. To the compounds that affect the nucleation and/or the growth steps we call true inhibitors. An apparent inhibition mechanism may however result from the alteration of thermodynamic properties such as the solubility of the amyloidogenic protein. Apparent inhibitors markedly influence protein aggregation kinetics measured in vitro, yet they are likely to lead to disappointing results when tested in vivo. This is because cells and tissues media are in general much more buffered against small variations in composition than the solutions prepared in lab. Here we show how to discriminate between true and apparent inhibition mechanisms from experimental data on protein aggregation kinetics. The goal is to be able to identify false positives much earlier during the drug development process. This model is hosted on BioModels Database and identified by: BIOMD0000000561. To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models. To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication for more information.

DISEASE(S): Alzheimer's Disease,Prion Disease,Parkinson's Disease

SUBMITTER: Audald Lloret i Villas  

PROVIDER: BIOMD0000000561 | BioModels | 2014-12-11

REPOSITORIES: BioModels

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True and apparent inhibition of amyloid fibril formation.

Martins Pedro M PM  

Prion 20121211 2


A possible therapeutic strategy for amyloid diseases involves the use of small molecule compounds to inhibit protein assembly into insoluble aggregates. According to the recently proposed Crystallization-Like Model, the kinetics of amyloid fibrillization can be retarded by decreasing the frequency of new fibril formation or by decreasing the elongation rate of existing fibrils. To the compounds that affect the nucleation and/or the growth steps we call true inhibitors. An apparent inhibition mec  ...[more]

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