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  • Title: The Accordion Zebrafish tq206 Mutant in the Assessment of a Novel Pharmaceutical Approach to Brody Myopathy.
    Author: Akyürek EE, Greco F, Tesoriero C, Dalla Barba F, Carotti M, Gorni G, Sandonà D, Vettori A, Sacchetto R.
    Journal: Int J Mol Sci; 2024 Aug 25; 25(17):. PubMed ID: 39273176.
    Abstract:
    Brody disease (BD) is an "ultra-rare" human genetic disorder of skeletal muscle function due to defects in the atp2a1 gene causing deficiency of the SERCA protein, isoform1. The main clinical signs are exercise-induced stiffness and delayed muscular relaxation after physical exercises, even mild ones. No mouse model nor specific therapies exist for Brody myopathy, which is therefore considered an orphan disease. Bovine congenital pseudomyotonia (PMT) is a muscular disorder characterized by an impairment of muscle relaxation and is the only mammalian model of human BD. The pathogenetic mechanism underlying bovine PMT has been recently clarified. These findings prompted us to purpose a potential pharmacological approach addressing a specific population of BD patients who exhibit reduced expression but still exhibit activity of the SERCA1 pump. Preclinical research involving in vivo studies is essential and necessary before clinical trials can be pursued and SERCA protein shows a high degree of conservation among species. So far, the only animal models available to study BD in vivo are a group of zebrafish mutant lines known as accordion zebrafish (acc). In this paper, we focused on a comprehensive characterization of the "acctq206" zebrafish variant. Our aim was to use this mutant line as an experimental animal model for testing the novel therapeutic approach for BD.
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