title: [Kinetics of multicellular spheroids developed from a human glioblastoma, and effect of 1,3-bis (2-chloroethyl)-1-nitrosourea].
abstract: Multicellular spheroids (MCS) were yielded in vitro by early stages of human glioblastoma cell cultures. The spheroids were grown in suspension in the culture medium in agarose-coated (0.65%) dishes. The volume doubling time during the exponential growth phase was longer (13 days) than the population doubling time of monolayer cultures (2-3 days). Pathological examination of MCS showed a thin proliferative outer layer and areas of necrosis in the center. In two experiments BCNU caused a growth delay of MCS which was dose-related. The cells were sensitive to BCNU in monolayer cultures (CFE's assay), whereas the tumor was resistant in vivo. The usefulness and pitfalls of studies using MCS cultured from early passages of human malignant gliomas are discussed.
mesh_terms: D001932:Brain Neoplasms / Q000473:pathology*; D002330:Carmustine / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D005910:Glioma / Q000473:pathology*; D006801:Humans; D007700:Kinetics
chemical_list: D002330:Carmustine
vernacular_title: Cinétique de sphéroïdes multicellulaires développés a partir d'un glioblastome humain et action de la 1,3 bis (2-chloroethyl)-1-nitrosourée.