Suspensional reaggregates of human foetal neocortex and tegmentum as objects of neurotransplantation.
Folia Neuropathol
; 40(2): 75-85, 2002.
Article
en En
| MEDLINE
| ID: mdl-12230259
ABSTRACT
Suspensional reaggregates were obtained from human neocortical and tegmental anlagen (7 weeks of gestation), using 0.1% tripsin solution, and cultivated in Medium 199. Suspensional reaggregates, formed after 2 days in vitro, were grafted into the Wistar rat striatum. Incipient stages of histogenesis in the reaggregates and their interaction with host brain were investigated using light and electron microscopy, with antibodies against vimentin, glial fibrillary acidic protein (GFAP), proliferating cell nuclear antigen (PCNA), ferritin, as well as lectin ricinus communis agglutinin (RCA). The reaggregates showed a low level of tissue organisation. An intermediate condition between suspension and the true tissue could be observed in them. These reaggregates had two evident features a rather irregular cell arrangement (without parallel bundles of radial glia), and the presence of special intercellular junctions. Some cells made up fragments of neuroepithelial sheet in the form of true rosettes. The one-week-old grafts were integrated with the host brain as well as dissociated and contained host astrocytes. Degenerated cells and detritus appeared rarely. The data of this work let us conclude that the suspensional aggregate grafting combines some advantages of suspensional and solid grafting methods.
Buscar en Google
Base de datos:
MEDLINE
Asunto principal:
Tegmento Mesencefálico
/
Trasplante de Tejido Encefálico
/
Trasplante de Tejido Fetal
/
Neocórtex
Límite:
Animals
/
Humans
/
Male
Idioma:
En
Revista:
Folia Neuropathol
Asunto de la revista:
NEUROLOGIA
/
PATOLOGIA
Año:
2002
Tipo del documento:
Article
País de afiliación:
Rusia