Establishment and characterization of a novel, spontaneously immortalized retinoblastoma cell line with adherent growth.
Retinoblastoma is the most common intraocular cancer of childhood, however, only a few cultured retinoblastoma cell lines are available to date. In the present study, we established a new human retinoblastoma cell line with adherent growth, named SNUOT-Rb1. The SNUOT-Rb1 cell line was established from an eye with retinoblastoma, which was enucleated from a 3-year-old Korean child. SNUOT-Rb1 has morphological and biochemical characteristics common to previous human retinoblastoma cell line, Y79: morphological features of fibroblast- or ganglion-like cells, and biochemical features of expression of glial fibrillary acidic protein and neuron-specific enolase. However, compared to Y79, SNUOT-Rb1 has a unique characteristic of growing in adherence, and the doubling time of SNUOT-Rb1 is shorter than Y79 in adherent or floating growth. In analysis of the tumorigenic potential of SNUOT-Rb1 in nude mice, orthotopic implantation of SNUOT-Rb1 mimics the pattern of local growth of retinoblastoma. In comparative genomic hybridization analysis, we found that SNUOT-Rb1 has significant chromosomal imbalances on chromosome 3, 9, 10, 11, 14, 16, 17, and 22. Therefore, SNUOT-Rb1 could be useful in studying the biological and genetic characteristics of retinoblastoma for insights into the heredity and genetics of childhood cancer.
Department of Ophthalmology, Seoul National University College of Medicine and Seoul Artificial Eye Center, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea.
Jeong Hun
JH
Kim
Jin Hyoung
JH
Kim
Young Suk
YS
Yu
Dong Hun
DH
Kim
Chong Jai
CJ
Kim
Kyu-Won
KW
Kim
D000818:Animals; D002448:Cell Adhesion; D018929:Cell Culture Techniques; D002454:Cell Differentiation; D045744:Cell Line, Tumor; D049109:Cell Proliferation; D002675:Child, Preschool; D002869:Chromosome Aberrations; D006801:Humans; D051379:Mice; D008819:Mice, Nude; D009368:Neoplasm Transplantation; D009693:Nucleic Acid Hybridization; D012175:Retinoblastoma / Q000473:pathology*; D013997:Time Factors