title: [The system of intermediate filaments in the cells of the epitheloid line RL 19. An electron microscopy study].
abstract: The occurrence and distribution of intermediate-sized filaments (100 A filaments) in an established epitheloid cell line RL 19 originally derived from rat liver was described by use of ultrathin sections tangentially and crossly to the cell substrate. The epithel-like cells showed in the cytoplasm a highly developed system of intermediate-sized filaments. The intermediate-sized filaments are either individually traversing in different directions or are grouped to loosely arranged bundles randomly running wavy-like through the whole cytoplasm. The bundles of highly variable thickness (20 to 40 filaments) are branched or are uniting and assembled to a three-dimensional network. The nucleus and Golgi-system are surrounding by a large ring of densely packed intermediate-sized filaments. Occasionally parallel running single filaments are associated to electron dense aggregates.
mesh_terms: D000818:Animals; D002460:Cell Line; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D003599:Cytoskeleton / Q000648:ultrastructure*; D004848:Epithelium / Q000648:ultrastructure; D008099:Liver / Q000166:cytology*; D008854:Microscopy, Electron; D051381:Rats
vernacular_title: Das System von Intermediärfilamenten in den Zellen der epitheloiden Linie RL 19. Eine elektronenmikroskopische Studie.