title: Establishment and characterization of human immature teratoma cell line (TES-1).
abstract: A new human immature teratoma cell line, TES-1, was established from a surgical specimen from a 12-year old male with third ventricular immature teratoma. TES-1 shows polygonal morphology rich in neurites, and proliferated as adherent monolayer, with an approximate population doubling time of 48 hours. Electron microscopic analysis revealed the presence of swollen rough endoplasmic reticulum, and prominent lipid droplets, lysosomes and microfilaments. The chromosome numbers were between 41 and 160 (mode 78), including abnormal karyotypes 1p-, 5q-, 12p+ and 17p+ (G-band analysis). Hetero-transplantation of TES-1 into BALB/c nude mice produced no visible tumors. Multipotential differentiation was not induced in TES-1 monolayer culture, but significant neuron specific enolase activity was expressed in both extracellular (by RIA method) and intracellular fractions (by immunohistochemical method), suggesting the differentiation toward neurocytes. This cell line provides a useful in vitro model for the pathophysiological analysis of immature teratoma.
authors.affiliation: Department of Neurosurgery, Tokyo Metropolitan Ebara Hospital, Japan. masaiida-e@ebara-hp.ota.tokyo.jp
authors.forename: M
authors.initials: M
authors.lastname: Iida
authors.forename: H
authors.initials: H
authors.lastname: Doi
authors.forename: S
authors.initials: S
authors.lastname: Asamoto
authors.forename: H
authors.initials: H
authors.lastname: Sugiyama
authors.forename: H
authors.initials: H
authors.lastname: Sakagami
authors.forename: S
authors.initials: S
authors.lastname: Shioda
authors.forename: N
authors.initials: N
authors.lastname: Kuribayashi
authors.forename: M
authors.initials: M
authors.lastname: Takeda
authors.forename: Y
authors.initials: Y
authors.lastname: Okamura
authors.forename: K
authors.initials: K
authors.lastname: Matsumoto
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002551:Cerebral Ventricle Neoplasms / Q000737:chemistry / Q000473:pathology*; D002648:Child; D002869:Chromosome Aberrations; D006801:Humans; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D009363:Neoplasm Proteins / Q000032:analysis; D014411:Neoplastic Stem Cells / Q000737:chemistry / Q000473:pathology; D010751:Phosphopyruvate Hydratase / Q000032:analysis; D013724:Teratoma / Q000737:chemistry / Q000473:pathology*; D014407:Tumor Cells, Cultured / Q000637:transplantation
chemical_list: D009363:Neoplasm Proteins; D010751:Phosphopyruvate Hydratase