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Journal Article
Research Support, U.S. Gov't, P.H.S.
Culture and regeneration of human neurons after brain surgery.
Journal of Neuroscience Methods 2001 May 31
Cortical human brain tissue was obtained from 11 craniotomies for intractable epilepsy or tumor resection. Neuregen transport medium preserved viability at 4 degrees C during transfer to the culture laboratory. Cells were isolated and cultured by methods previously developed for adult rat neurons (Brewer GJ. Isolation and culture of adult rat hippocampal neurons. J. Neurosci. Meth. 1997:71:143-55). In about 40% of the cases, cultures regenerated with a majority of neuron-like cells that stained for neurofilament and not GFAP. After 3 weeks of culture from a 70 year old meningioma case, synapse-like structures were revealed by electron microscopy. Trophic support from basic human recombinant fibroblast growth factor was synergistically improved with the steroid hormone dehydroepiandrosterone 3-sulfate. Another 40% of the cases resulted in cultures that were predominantly GFAP positive astroglia. The remaining 20% of the cases did not regenerate cells with neuron-like or glial processes. Three postmortem cases did not regenerate neurites. These methods may aid development of human culture models of epilepsy as well as human pharmacology, toxicology and development of improved methods for brain grafts.
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