Establishment and characterization of two cell lines derived from canine spontaneous osteosarcoma.
Two new canine osteosarcoma cell lines were established. One (OOS) was established from a 10-year-old female maltese dog with mandibular osteosarcoma and the other (HOS) from a 7-year-old male mongrel dog with scapular osteosarcoma. Histopathological types of OOS and HOS were mixed and fibroblastic cell type, respectively. Transmission electron microscopic features of HOS revealed prominent rough endoplasmic reticulum, suggesting higher malignancy comparing to OOS. Doubling time of OOS and HOS were 45.0 +/- 0.5 hr and 42.0 +/- 0.1 hr, respectively. Alkaline phosphatase activities of OOS and HOS were quite low. Histological features of tumor tissues produced by transplantation of these cells into nude mice were identical to those of original osteosarcomas.
Division of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, University of Tokyo, Japan.
S H
SH
Hong
T
T
Kadosawa
M
M
Mochizuki
S
S
Matsunaga
R
R
Nishimura
N
N
Sasaki
D000469:Alkaline Phosphatase / Q000032:analysis; D000818:Animals; D001859:Bone Neoplasms / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D018929:Cell Culture Techniques / Q000379:methods; D002460:Cell Line; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D018870:Endoplasmic Reticulum, Rough / Q000473:pathology / Q000648:ultrastructure; D005260:Female; D008297:Male; D008339:Mandibular Neoplasms / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary; D051379:Mice; D008819:Mice, Nude; D008854:Microscopy, Electron; D012516:Osteosarcoma / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D012540:Scapula; D014183:Transplantation, Heterologous; D014407:Tumor Cells, Cultured
D000469:Alkaline Phosphatase