Related Experiment Video
Updated: Apr 14, 2026

Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
Germline TP53 variants and susceptibility to osteosarcoma
Lisa Mirabello1, Meredith Yeager2, Phuong L Mai2
1Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD (LM, PLM, SJC, SAS); Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, MD (MY, XZ, AV, KJ, JFB); Nationwide Children's Hospital and The Ohio State University Department of Pathology and Pediatrics, Columbus, OH (JMGF); Albert Einstein College of Medicine, The Children's Hospital at Montefiore, Bronx, NY (RG); Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (CK); Department Of Pediatrics, University Clinic of Navarra, Universidad de Navarra, Pamplona, Spain (APG, LS, FL); University of Toronto, Litwin Centre for Cancer Genetics, Lunenfeld Tanenbaum Research Institute, Mt Sinai Hospital, Toronto, Ontario, Canada (ILA, JSW, NG); Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA (DAB). mirabellol@mail.nih.gov.
Abstract:
The etiologic contribution of germline genetic variation to sporadic osteosarcoma is not well understood. Osteosarcoma is a sentinel cancer of Li-Fraumeni syndrome (LFS), in which approximately 70% of families meeting the classic criteria have germline TP53 mutations. We sequenced TP53 exons in 765 osteosarcoma cases. Data were analyzed with χ(2) tests, logistic regression, and Cox proportional hazards regression models. We observed a high frequency of young osteosarcoma cases (age <30 years) carrying a known LFS- or likely LFS-associated mutation (3.8%) or rare exonic variant (5.7%) with an overall frequency of 9.5%, compared with none in case patients age 30 years and older (P < .001). This high TP53 mutation prevalence in young osteosarcoma cases is statistically significantly greater than the previously reported prevalence of 3% (P = .0024). We identified a novel association between a TP53 rare variant and metastasis at diagnosis of osteosarcoma (rs1800372, odds ratio = 4.27, 95% confidence interval = 1.2 to 15.5, P = .026). Genetic susceptibility to young onset osteosarcoma is distinct from older adult onset osteosarcoma, with a high frequency of LFS-associated and rare exonic TP53 variants.
More Related Videos
Related Concept Videos
Abnormal Proliferation
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
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...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase

