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Neuron. 1995 Dec;15(6):1259-73.

Regional incorporation and site-specific differentiation of striatal precursors transplanted to the embryonic forebrain ventricle.

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  • 1Department of Medical Cell Research, University of Lund, Sweden.


The developmental potential of neural progenitors derived from the E13.5-E14 lateral or medial ganglionic eminences (LGE and MGE, respectively) or the E12 ventral mesencephalon (VM) was examined in cross-species transplantation model. After injection into the E15 rat forebrain ventricle, mouse LGE progenitors (unlike those of the MGE or VM) were consistently integrated into the host striatum, expressing neurochemical phenotypes and axonal projections characteristic of striatal projection neurons. Additionally, both LGE and MGE precursors displayed widespread incorporation into distinct forebrain and midbrain structures, whereas the more caudally derived VM cells were largely confined to midbrain structures. These results suggest that many LGE precursors are positionally specified for striatal incorporation, while a portion also possess greater potential reflected in more widespread integration following intraventricular injection.

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