Related Experiment Video
Updated: Aug 17, 2026

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma
Published on: October 14, 2016
Telomere stability genes are not mutated in osteosarcoma cell lines
Sharon A Savage1, Brian J Stewart, Jason S Liao
1Section of Genomic Variation, Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Advanced Technology Center, 8717 Grovemont Circle, Bethesda, MD 20892-4605, USA. savagesh@mail.nih.gov
Abstract:
Osteosarcoma (OS), the most common primary bone tumor in adolescents and young adults, is characterized by a high degree of chromosomal abnormalities. Because telomeres are important for maintaining chromosomal integrity, it is plausible that germ-line or somatic mutations in the genes responsible for stabilizing the telomere complex could contribute to OS. We performed bi-directional sequence analysis in five OS cell lines and targeted all exons and proximal promoter regions in eight genes important in telomere stability: telomerase, the RNA component of telomerase (TERC), telomeric repeat binding factor 1, telomeric repeat binding factor 2, TERF1 interacting nuclear factor 2, human Rap1, protection of telomeres 1 and tankyrase. In this pilot study, we did not identify either somatic mutations or novel germ-line mutations in the five cell lines studied. However, we did confirm common genetic polymorphisms; an analysis of heterozygous sites suggests that loss of heterozygosity in OS is not present across these eight genes.
More Related Videos
Related Concept Videos
Replicative Cell Senescence
Loss of Tumor Suppressor Gene Functions
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Loss of Tumor Suppressor Gene Functions
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Abnormal Proliferation
Cancers Originate from Somatic Mutations in a Single Cell
Cancers Originate from Somatic Mutations in a Single Cell

