Publication:
The pathophysiology of triose phosphate isomerase dysfunction in Alzheimer’s disease

Simple item page
dc.contributor.authorTajes, Marta
dc.contributor.authorGuivernau, Biuse
dc.contributor.authorRamos Fernández, Eva
dc.contributor.authorBosch Morató, Mónica
dc.contributor.authorPalomer, Ernest
dc.contributor.authorGuix, Francesc X.
dc.contributor.authorMuñoz, Francisco J.
dc.date.accessioned2018-02-09T18:02:29Z
dc.date.available2018-02-09T18:02:29Z
dc.date.issued2013
dc.description.abstractAlzheimer’s disease (AD), the most prevalent neurodegenerative disease worldwide, has two main hallmarks: extracellular deposits of amyloid ß- peptide (Aß) and intracellular neurofibrillary tangles composed by tau protein. Most AD cases are sporadic and are not dependent on known genetic causes; aging is the major risk factor for AD. Therefore, the oxidative stress has been proposed to initiate the uncontrolled increase in Aß production and also to mediate the Aß’s deleterious effects on brain cells, especially on neurons from the cortex and hippocampus. The production of free radicals in the presence of nitric oxide (NO) yields to the peroxynitrite generation, a very reactive agent that nitrotyrosinates the proteins irreversibly. The nitrotyrosination produces a loss of protein physiological functions, contributing to accelerate AD progression. One of the most nitrotyrosinated proteins in AD is the enzyme triosephosphate isomerase (TPI) that isomerises trioses, regulating glucose consumption by both phosphate pentose and glycolytic pathways and thereby pyruvate production. Hence, any disturbance in the glucose supply could affect the proper brain function, considering that the brain has a high rate of glucose consumption. Besides this directly affecting to the energetic metabolism of the neurons, TPI modifications, such as mutation or nitrotyrosination, increase methylglyoxal production, a toxic precursor of advanced glycated end-products (AGEs) and responsible for protein glycation. Moreover, nitro-TPI aggregates interact with tau protein inducing the intraneuronal aggregation of tau. Here we review the relationship between modified TPI and AD, highlighting the relevance of this protein in AD pathology and the consequences of protein nitro-oxidative modifications.es
dc.formatapplication/pdfes
dc.format.extent9es
dc.identifier.citationHistology and histopathology, Vol. 28, n.º 1 (2013)
dc.identifier.issn1699-5848
dc.identifier.issn0213-3911
dc.identifier.urihttp://hdl.handle.net/10201/56012
dc.languageenges
dc.publisherF. Hernández y Juan F. Madrid. Universidad de Murcia. Departamento de Biología Celular e Histologíaes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectAlzheimer’s diseasees
dc.subjectTriosephosphate isomerasees
dc.subject.otherCDU::6 - Ciencias aplicadas::61 - Medicinaes
dc.titleThe pathophysiology of triose phosphate isomerase dysfunction in Alzheimer’s diseasees
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Tajes-28-43-51-2013.pdf
Size:
6.67 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.39 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Histology and histopathology Vol.28, nº 1 (2013)