A Novel Porcine Model of CLN2 Batten Disease that Recapitulates Patient Phenotypes

© 2022. The American Society for Experimental Neurotherapeutics, Inc..

CLN2 Batten disease is a lysosomal disorder in which pathogenic variants in CLN2 lead to reduced activity in the enzyme tripeptidyl peptidase 1. The disease typically manifests around 2 to 4 years of age with developmental delay, ataxia, seizures, inability to speak and walk, and fatality between 6 and 12 years of age. Multiple Cln2 mouse models exist to better understand the etiology of the disease; however, these models are unable to adequately recapitulate the disease due to differences in anatomy and physiology, limiting their utility for therapeutic testing. Here, we describe a new CLN2R208X/R208X porcine model of CLN2 disease. We present comprehensive characterization showing behavioral, pathological, and visual phenotypes that recapitulate those seen in CLN2 patients. CLN2R208X/R208X miniswine present with gait abnormalities at 6 months of age, ERG waveform declines at 6-9 months, vision loss at 11 months, cognitive declines at 12 months, seizures by 15 months, and early death at 18 months due to failure to thrive. CLN2R208X/R208X miniswine also showed classic storage material accumulation and glial activation in the brain at 6 months, and cortical atrophy at 12 months. Thus, the CLN2R208X/R208X miniswine model is a valuable resource for biomarker discovery and therapeutic development in CLN2 disease.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:19

Enthalten in:

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics - 19(2022), 6 vom: 31. Okt., Seite 1905-1919

Sprache:

Englisch

Beteiligte Personen:

Swier, Vicki J [VerfasserIn]
White, Katherine A [VerfasserIn]
Johnson, Tyler B [VerfasserIn]
Sieren, Jessica C [VerfasserIn]
Johnson, Hans J [VerfasserIn]
Knoernschild, Kevin [VerfasserIn]
Wang, Xiaojun [VerfasserIn]
Rohret, Frank A [VerfasserIn]
Rogers, Christopher S [VerfasserIn]
Pearce, David A [VerfasserIn]
Brudvig, Jon J [VerfasserIn]
Weimer, Jill M [VerfasserIn]

Links:

Volltext

Themen:

Aminopeptidases
CLN2 Batten disease
Cortical atrophy
Dipeptidyl-Peptidases and Tripeptidyl-Peptidases
EC 3.4.-
EC 3.4.11.-
EC 3.4.14.-
Electroretinogram a- and b-waves
Gait
Journal Article
Miniswine
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Seizures
Serine Proteases

Anmerkungen:

Date Completed 07.12.2022

Date Revised 04.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s13311-022-01296-7

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346176182