in immunohistochemical studies of these cells , both in frozen sections of gut wall and in tissue culture preparations of the enteric plexuses , we found evidence that the enteric glial cells are rich in glial fibrillary acidic protein ( gfap ) , a protein associated with the 100 a glial intermediate filaments , and hitherto believed to be specific to astrocytes of the central nervous system only .
C0007634
cells
C0021770
intermediate filaments