Abstract:
OBJECTIVE:To determine whether adult human dorsal root ganglion neurons can be isolated and maintained in long-term tissue culture, where they would extend processes. METHODS:Dorsal root ganglia were removed from adult human organ donors within 2 hours of clamping the aorta. They were then treated with enzymes for one hour, triturated to dissociate the neurons and their satellite cells, and the individual neurons were then plated in tissue culture dishes in medium containing serum. RESULTS:Isolated adult human dorsal root ganglion neurons survive in vitro for more than 2 1/2 months, in the absence of exogenously supplied neurotrophins. where they remain electrically excitable and extend processes, CONCLUSIONS:Isolated adult human dorsal root ganglion neurons survive in culture for more than 2 1/2 months, extend processes, and remain electrically excitable, without exogenous neurotrophins. These results suggest that, adult human sensory neurons do not require exogenous neurotrophins for survival and process outgrowth, or that sufficient factors were provided by the small number of satellite cells in the cultures. In addition, the neurons survive well in spite of an initial period of up to 14 hours of hypoxia, between the time the aorta was clamped and when the plated neurons were placed in an incubator with the appropriate O2/CO2 environment.
journal_name
Neurosurgeryjournal_title
Neurosurgeryauthors
Sosa IJ,Reyes O,Inserni J,Kuffler DPdoi
10.1097/00006123-199803000-00054subject
Has Abstractpub_date
1998-03-01 00:00:00pages
681-5; discussion 685-6issue
3eissn
0148-396Xissn
1524-4040journal_volume
42pub_type
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