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23 April 2012

Intracerebellar application of P19-derived neuroprogenitor and naive stem cells to Lurcher mutant and wild type B6CBA mice

Zbyněk HoudekB, Jan CendelínABCDEF, Vlastimil KuldaB, Václav BabuškaB, Miroslava ČedíkováB, Milena KrálíčkováADE, Jiří PacherníkD, George B. StefanoEF, František VožehEG

DOI: 10.12659/MSM.882726

Med Sci Monit 2012; 18(5): BR174-180

Abstract

Background: Neurotransplantation has great potential for future treatments of various neurodegenerative disorders. Preclinically, the Lurcher mutant mouse represents an appropriate model of genetically-determined olivocerebellar degeneration. The aim of the present study was to assess survival of naïve and neurally differentiated P19 carcinoma stem cells following transplantation into the cerebellum of Lurcher mice and wild type littermates.
Material/Methods: Adult normal wild type (n=51) and Lurcher mutant mice (n=87) of the B6CBA strain were used. The mean age of the animals at the time of transplantation was 261.5 days. Suspension of naive and neurally differentiated P19 carcinoma stem cells was injected into the cerebellum of the mice. In the Lurcher mutants, 2 depths of graft injection were used. Three weeks after implantation the brains of experimental animals were examined histologically.
Results: Survival of neuroprogenitor grafts at a depth of 1.6 mm was significantly higher in wild type vs. Lurcher mutant mice. In wild type mice, the typical graft localization was in the middle of the cerebellum, whereas in Lurcher mice the graft was never found inside the degenerated cerebellum and was primarily localized in the mesencephalon.
Conclusions: We conclude that the appearance and low survival rate of cerebellar P19 carcinoma stem cell grafts in the Lurcher mutant mice weigh against the therapeutic value of this cell line in preclinical studies of neurodegeneration.

Keywords: Neural Stem Cells - cytology, Neoplastic Stem Cells - cytology, Mice, Mutant Strains, Graft Survival, Cerebellum - cytology, Stem Cell Transplantation

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750