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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Björklund, A. Martínez-serrano, A. |
| Description | Author Affiliation: Martínez-Serrano A ( Wallenberg Neuroscience Center, University of Lund, Sölvegatan 17, S-223 62-Lund, Sweden. amserrano@trasto.cbm.uam.es); |
| Abstract | Nerve growth factor (NGF) is able to restore spatial learning and reverse forebrain cholinergic neuron atrophy when administered intracerebrally to behaviorally impaired aged rats. In the present study, behaviorally unimpaired, middle-aged rats (14-16 months old) received transplants of ex vivo transduced, clonal NGF-secreting immortalized neural progenitor cells, bilaterally in the nucleus basalis and septum. During the subsequent 9 months the aged control animals developed the expected impairment in spatial learning in the water maze task, whereas the animals with NGF-secreting grafts maintained a performance level not different from the 12-month-old control rats. The marked age-induced atrophy (-25%) of the cholinergic neurons in medial septum and nucleus basalis, seen in the aged control rats, was not present in the NGF-treated aged animals. 3H-labeled thymidine autoradiography showed that the transduced cells survived well and had become integrated into the host tissue surrounding the injection sites, and reverse transcription-PCR analysis revealed expression of the NGF transgene, at both 4 and 9 months postgrafting, in the grafted tissue. The results show that long-term supply of NGF from ex vivo transduced immortalized neural progenitor cells locally within the nucleus basalis and septum can prevent the subsequent development of age-dependent neuronal atrophy and behavioral impairments when the animals reach advanced age. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 4 |
| Volume Number | 95 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1998-03-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Aging Cognition Drug Effects Nerve Growth Factors Pharmacology Neurodegenerative Diseases Prevention & Control Animals Behavior, Animal Physiology Cholinergic Fibers Pathology Gene Transfer Techniques Administration & Dosage Rats, Sprague-Dawley Receptor, Nerve Growth Factor Receptors, Nerve Growth Factor Metabolism Stem Cell Transplantation Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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