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Updated: Aug 3, 2025
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A Transgenic Pig Model With Human Mutant SOD1 Exhibits the Early Pathology of Amyotrophic Lateral Sclerosis
Takayuki Kondo1, Ikuyo Inoue2, Kazuhiro Umeyama3
1Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan; RIKEN Center for Advanced Intelligence Project, Kyoto, Japan; RIKEN BioResource Research Center, Kyoto, Japan.
Abstract:
Amyotrophic lateral sclerosis (ALS) causes progressive degeneration of the motor neurons. In this study, we delivered the genetic construct including the whole locus of human mutant superoxide dismutase 1 (SOD1) with the promoter region of human SOD1 into porcine zygotes using intracytoplasmic sperm injection-mediated gene transfer, and we thereby generated a pig model of human mutant SOD1-mediated familial ALS. The established ALS pig model exhibited an initial abnormality of motor neurons with accumulated misfolded SOD1. The ALS pig model, with a body size similar to that of human beings, will provide opportunities for cell and gene therapy platforms in preclinical translational research.
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