title: New cell lines with chondrocytic phenotypes from human chondrosarcoma.
abstract: In the present study, we investigated chondrocytic characterization for newly established human chondrosarcoma cell lines. A chondrosarcoma cell line, HCS-TG, was established by the implantation of grade-2 human chondrosarcoma into athymic mice. Cloning of HCS-TG cells from passage 17 was performed. After cell cloning, two clonal-cell lines (HCS-TG C3 and E2) with good proliferative activities were obtained. These cell lines in monolayer culture retained a polygonal morphology. Their doubling times were 68 h and 45 h, respectively. mRNA expressions of type-I, -II, -X, and -XI collagens and aggrecan core protein were detected on reverse-transcription polymerase chain reaction. Protein expression of type-II collagen was confirmed in each cell line using Western blotting. However, there was no expression of type-I collagen. Moreover, gelatin zymography revealed that both cell lines produced extracellular matrices with matrix metalloproteinases 2 and 9. The parental HCS-TG cells had tumorigenicity in athymic mice; however, C3 and E2 were not tumorigenic. New clonal-cell lines HCS-TG C3 and E2 derived from human chondrosarcoma are morphologically chondrocytic in serial monolayer cultures and express chondrocytic phenotypes.
authors.affiliation: Department of Orthopaedic Surgery, Osaka National Hospital, Osaka 2-1-14 Hoenzaka, Chuo-ku, 540-0006 Osaka, Japan. kudawara@onh.go.jp
authors.forename: Ikuo
authors.initials: I
authors.lastname: Kudawara
authors.forename: Nobuhito
authors.initials: N
authors.lastname: Araki
authors.forename: Akira
authors.initials: A
authors.lastname: Myoui
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Kato
authors.forename: Atsumasa
authors.initials: A
authors.lastname: Uchida
authors.forename: Hideki
authors.initials: H
authors.lastname: Yoshikawa
mesh_terms: D000328:Adult; D000818:Animals; D014408:Biomarkers, Tumor / Q000378:metabolism; D015153:Blotting, Western; D001859:Bone Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D045744:Cell Line, Tumor; D019902:Chondrocytes / Q000378:metabolism / Q000473:pathology*; D002813:Chondrosarcoma / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D002999:Clone Cells; D024042:Collagen Type I / Q000378:metabolism; D024043:Collagen Type II / Q000378:metabolism; D006801:Humans; D007085:Ilium; D007124:Immunoenzyme Techniques; D007621:Karyotyping; D008297:Male; D051379:Mice; D008819:Mice, Nude; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000235:genetics / Q000378:metabolism / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D024042:Collagen Type I; D024043:Collagen Type II