Effect of allotransplants containing dissociated cells of rat embryonic spinal cord on nerve fiber regeneration in a recipient.
Regeneration of nerve fibers in rat sciatic nerve was quantitatively assessed after injury (ligation) and injection of dissociated cells derived from embryonic spinal cord. A suspension of dissociated spinal cord cells from rat embryos was transplanted under the perineurium of a nerve trunk. After transplantation, bromodeoxyuridine-labeled precursor cells survived and retained the label for more than 2 months; some of these cells differentiated into NeuNpositive neurons. Analysis of semithin sections of the distal nerve segment from the recipient taken at a distance of 0.5 cm from the site of injury showed that transplantation of dissociated cells of embryonic spinal cord led to an increase in the number of myelinated nerve fibers in the recipient nerve.
Laboratory of Functional Morphology of Central and Peripheral Nervous System, Department of General and Special Morphology, Research Institute of Experimental Medicine, North-Western Division of the Russian Academy of Medical Sciences, St. Petersburg, Russia, iemmorphol@yandex.ru.
E S
ES
Petrova
E N
EN
Isaeva
D E
DE
Korzhevskii
D064591:Allografts; D000818:Animals; D053595:Embryonic Stem Cells / Q000637:transplantation*; D005260:Female; D009416:Nerve Regeneration; D058953:Neural Stem Cells / Q000637:transplantation*; D017208:Rats, Wistar; D012584:Sciatic Nerve / Q000502:physiology*; D013116:Spinal Cord / Q000166:cytology