期刊
DISEASE MODELS & MECHANISMS
卷 16, 期 8, 页码 -出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/dmm.050038
关键词
Neuronal ceroid lipofuscinosis; JNCL; Animal disease models; Neuropediatric disease
This study presents a novel miniswine model of CLN3 disease that recapitulates the most common human pathogenic variant, showing consistent pathology and behavioral impairment mirroring clinical presentation. The model demonstrates its value in studying the role of CLN3 and safety/efficacy of novel disease-modifying therapeutics.
Mouse models of CLN3 Batten disease, a rare lysosomal storage disorder with no cure, have improved our understanding of CLN3 biology and therapeutics through their ease of use and a consistent display of cellular pathology. However, the translatability of murine models is limited by disparities in anatomy, body size, life span and inconsistent subtle behavior deficits that can be difficult to detect in CLN3 mutant mouse models, thereby limiting their use in preclinical studies. Here, we present a longitudinal characterization of a novel miniswine model of CLN3 disease that recapitulates the most common human pathogenic variant, an exon 7-8 deletion (CLN3Aex7/8). Progressive pathology and neuron loss is observed in various regions of the CLN3Aex7/8 miniswine brain and retina. Additionally, mutant miniswine present with retinal degeneration and motor abnormalities, similar to deficits seen in humans diagnosed with the disease. Taken together, the CLN3Aex7/8 miniswine model shows consistent and progressive Batten disease pathology, and behavioral impairment mirroring clinical presentation, demonstrating its value in studying the role of CLN3 and safety/efficacy of novel disease-modifying therapeutics.
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