Staropoli, J.F.* ; Haliw, L.* ; Biswas, S.* ; Garrett, L. ; Hölter, S.M. ; Becker, L. ; Skosyrski, S.* ; Da Silva-Buttkus, P.* ; Calzada-Wack, J.* ; Neff, F.* ; Rathkolb, B. ; Rozman, J. ; Schrewe, A. ; Adler, T. ; Puk, O. ; Sun, M. ; Favor, J.* ; Rácz, I.* ; Bekeredjian, R.* ; Busch, D.H.* ; Graw, J. ; Klingenspor, M.* ; Klopstock, T.* ; Wolf, E.* ; Wurst, W. ; Zimmer, A.* ; Lopez, E.* ; Harati, H.* ; Hill, E.* ; Krause, D.S.* ; Guide, J.* ; Dragileva, E.* ; Gale, E.* ; Wheeler, V.C.* ; Boustany, R.M.* ; Brown, D.E.* ; Breton, S.* ; Ruether, K.* ; Gailus-Durner, V. ; Fuchs, H. ; Hrabě de Angelis, M. ; Cotman, S.L.*
Large-scale phenotyping of an accurate genetic mouse model of JNCL identifies novel early pathology outside the central nervous system.
PLoS ONE 7:e38310 (2012)
Cln3(Delta ex7/8) mice harbor the most common genetic defect causing juvenile neuronal ceroid lipofuscinosis (JNCL), an autosomal recessive disease involving seizures, visual, motor and cognitive decline, and premature death. Here, to more thoroughly investigate the manifestations of the common JNCL mutation, we performed a broad phenotyping study of Cln3(Delta ex7/8) mice. Homozygous Cln3(Delta ex7/8) mice, congenic on a C57BL/6N background, displayed subtle deficits in sensory and motor tasks at 10-14 weeks of age. Homozygous Cln3(Delta ex7/8) mice also displayed electroretinographic changes reflecting cone function deficits past 5 months of age and a progressive decline of retinal post- receptoral function. Metabolic analysis revealed increases in rectal body temperature and minimum oxygen consumption in 12- 13 week old homozygous Cln3(Delta ex7/8) mice, which were also seen to a lesser extent in heterozygous Cln3(Delta ex7/8) mice. Heart weight was slightly increased at 20 weeks of age, but no significant differences were observed in cardiac function in young adults. In a comprehensive blood analysis at 15-16 weeks of age, serum ferritin concentrations, mean corpuscular volume of red blood cells (MCV), and reticulocyte counts were reproducibly increased in homozygous Cln3(Delta ex7/8) mice, and male homozygotes had a relative T- cell deficiency, suggesting alterations in hematopoiesis. Finally, consistent with findings in JNCL patients, vacuolated peripheral blood lymphocytes were observed in homozygous Cln3(Delta ex7/8) neonates, and to a greater extent in older animals. Early onset, severe vacuolation in clear cells of the epididymis of male homozygous Cln3(Delta ex7/8) mice was also observed. These data highlight additional organ systems in which to study CLN3 function, and early phenotypes have been established in homozygous Cln3(Delta ex7/8) mice that merit further study for JNCL biomarker development.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
NEURONAL CEROID-LIPOFUSCINOSIS; ATRIAL-NATRIURETIC-PEPTIDE; JUVENILE BATTEN-DISEASE; KNOCK-IN MICE; INDEPENDENT MECHANISMS; TRANSMEMBRANE PROTEIN; BETA-HEXOSAMINIDASE; INBRED MICE; V-ATPASE; CELLS
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english
Publication Year
2012
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2012
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1932-6203
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Volume: 7,
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Article Number: e38310
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Public Library of Science (PLoS)
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Lawrence, Kan.
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0000-00-00
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0000-00-00
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0000-00-00
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Peer reviewed
POF-Topic(s)
30201 - Metabolic Health
30204 - Cell Programming and Repair
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
90000 - German Center for Diabetes Research
Research field(s)
Genetics and Epidemiology
Enabling and Novel Technologies
PSP Element(s)
G-500600-003
G-500600-001
G-500500-001
G-500300-001
G-500500-002
G-500700-002
G-500500-003
G-501900-066
G-501900-063
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Erfassungsdatum
2012-07-12