Mouhid 2016 Neurosci Lett

Mouhid Al-Achbili L, Moreno-Ortega AJ, Matías-Guiu J, Cano-Abad MF, Ruiz-Nuño A (2016) ITH33/IQM9.21 provides neuroprotection in a novel ALS model based on TDP-43 and Na⁺/Ca²⁺ overload induced by VTD. Neurosci Lett 633:28-32.

» PMID: 27619542

Mouhid Al-Achbili L, Moreno-Ortega AJ, Matias-Guiu J, Cano-Abad MF, Ruiz-Nuno A (2016) Neurosci Lett

Abstract: Therapeutic options for amyotrophic lateral sclerosis (ALS) are scarce and controversial. Although the aetiology of neuronal vulnerability is unknown, growing evidence supports a complex network in which multiple toxicity pathways, rather than a single mechanism, are involved in the pathogenesis of ALS. However, most cellular models only explain single pathogenic mechanisms. The present study proposes the two main cytotoxic mechanisms: (1) veratridine (VTD), which induced Na⁺ and Ca²⁺ overload; and (2) the TARD DNA-binding protein 43 (TDP-43) in NSC-34 cell line as an in vitro model of ALS. The study was carried out by MTT as an indirect measurement of cell viability and by flow cytometry to determine cell death stages. The impact of Ca²⁺ overload combined with TDP-43 overexpression increased early apoptosis of NSC-34 cells. Furthermore, we found that ITH33/IQM9.21 (ITH33) exerted a neuroprotective effect in this model by reducing activation of the apoptotic pathway. Therefore, treatment with VTD in TDP-43 overexpressing NSC-34 cells is a good in vitro ALS model that makes it possible to test new neuroprotective compounds such as ITH33.

Labels: Pathology: Neurodegenerative

Organism: Mouse Tissue;cell: Nervous system