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Glial cell line-derived neurotrophic factor improves survival of ventral mesencephalic grafts to the 6-hydroxydopamine lesioned striatum. 1997

A C Granholm, and J L Mott, and K Bowenkamp, and S Eken, and S Henry, and B J Hoffer, and P A Lapchak, and M R Palmer, and C van Horne, and G A Gerhardt
Department of Basic Science, University of Colorado Health Sciences Center, Denver 80262, USA.

One approach to replace lost dopaminergic neurons in Parkinson's disease is to transplant fetal mesencephalic tissue into the striatum. In an attempt to expand the developmental window useful for grafting of mesencephalic tissue and increase the fiber outgrowth from grafted dopaminergic neurons, we have pretreated fetal mesencephalic tissue with the dopaminotrophic factor glial cell line-derived neurotrophic factor (GDNF). Mesencephalic tissue pieces from embryonic day 18-19 Fischer 344 rats were preincubated for 20 min with GDNF (1 microg/microl) or vehicle. Two tissue pieces were then transplanted into the striatum of rats that had been unilaterally lesioned by medial forebrain bundle injections of 6-hydroxydopamine. The animals were tested for apomorphine-induced rotations prior to intracranial grafting. Host rats received intrastriatal injections of 10 microg GDNF or control solution at 10 days and 4 weeks postgrafting. The animals were tested in the rotometer twice monthly following transplantation. Despite the fact that these transplants were from a suboptimal donor stage, the rotations were significantly decreased in both transplanted groups. Immunohistochemical evaluation of the host brains revealed that the overall size of transplanted mesencephalic tissue was significantly increased in the GDNF-treated animals, and that the average size of transplanted tyrosine hydroxylase (TH)-positive neurons was also increased. Furthermore, we found that the innervation density of surrounding host striatal tissue was significantly increased in the GDNF-treated group, as compared with controls. Taken together, these results suggest that treatment of intrastriatal ventral mesencephalon grafts with GDNF can optimize the conditions for intracranial grafting and thus improve the chances for functional recovery following the intrastriatal grafting procedure.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008297 Male Males
D008636 Mesencephalon The middle of the three primitive cerebral vesicles of the embryonic brain. Without further subdivision, midbrain develops into a short, constricted portion connecting the PONS and the DIENCEPHALON. Midbrain contains two major parts, the dorsal TECTUM MESENCEPHALI and the ventral TEGMENTUM MESENCEPHALI, housing components of auditory, visual, and other sensorimoter systems. Midbrain,Mesencephalons,Midbrains
D009414 Nerve Growth Factors Factors which enhance the growth potentialities of sensory and sympathetic nerve cells. Neurite Outgrowth Factor,Neurite Outgrowth Factors,Neuronal Growth-Associated Protein,Neuronotrophic Factor,Neurotrophic Factor,Neurotrophic Factors,Neurotrophin,Neurotrophins,Growth-Associated Proteins, Neuronal,Neuronal Growth-Associated Proteins,Neuronotrophic Factors,Neurotrophic Protein,Neurotrophic Proteins,Proteins, Neuronal Growth-Associated,Factor, Neurite Outgrowth,Factor, Neuronotrophic,Factor, Neurotrophic,Factors, Nerve Growth,Factors, Neurite Outgrowth,Factors, Neuronotrophic,Factors, Neurotrophic,Growth Associated Proteins, Neuronal,Growth-Associated Protein, Neuronal,Neuronal Growth Associated Protein,Neuronal Growth Associated Proteins,Outgrowth Factor, Neurite,Outgrowth Factors, Neurite,Protein, Neuronal Growth-Associated
D009419 Nerve Tissue Proteins Proteins, Nerve Tissue,Tissue Proteins, Nerve
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D011916 Rats, Inbred F344 An inbred strain of rat that is used for general BIOMEDICAL RESEARCH purposes. Fischer Rats,Rats, Inbred CDF,Rats, Inbred Fischer 344,Rats, F344,Rats, Inbred Fisher 344,CDF Rat, Inbred,CDF Rats, Inbred,F344 Rat,F344 Rat, Inbred,F344 Rats,F344 Rats, Inbred,Inbred CDF Rat,Inbred CDF Rats,Inbred F344 Rat,Inbred F344 Rats,Rat, F344,Rat, Inbred CDF,Rat, Inbred F344,Rats, Fischer
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D003342 Corpus Striatum Striped GRAY MATTER and WHITE MATTER consisting of the NEOSTRIATUM and paleostriatum (GLOBUS PALLIDUS). It is located in front of and lateral to the THALAMUS in each cerebral hemisphere. The gray substance is made up of the CAUDATE NUCLEUS and the lentiform nucleus (the latter consisting of the GLOBUS PALLIDUS and PUTAMEN). The WHITE MATTER is the INTERNAL CAPSULE. Lenticular Nucleus,Lentiform Nucleus,Lentiform Nuclei,Nucleus Lentiformis,Lentiformis, Nucleus,Nuclei, Lentiform,Nucleus, Lenticular,Nucleus, Lentiform,Striatum, Corpus
D006085 Graft Survival The survival of a graft in a host, the factors responsible for the survival and the changes occurring within the graft during growth in the host. Graft Survivals,Survival, Graft,Survivals, Graft

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