An inherited p53 mutation that contributes in a tissue-specific manner to pediatric adrenal cortical carcinoma
Open accessAbstract
The incidence of pediatric adrenal cortical carcinoma (ACC) in southern Brazil is 10-15 times higher than that of pediatric ACC worldwide. Because childhood ACC is associated with Li-Fraumeni syndrome, we examined the cancer history and p53 status of 36 Brazilian patients and their families. Remarkably, 35 of 36 patients had an identical germ-line point mutation of p53 encoding an R337H amino acid substitution. Differences within intragenic polymorphic markers demonstrated that at least some mutant alleles arose independently, thus eliminating a founder effect. In tumor cells, the wild-type allele was deleted, and mutant p53 protein accumulated within the nuclei. Although these features are consistent with Li-Fraumeni syndrome-associated adrenal tumors, there was no history of increased cancer incidence among family members. Therefore, this inherited R337H p53 mutation represents a low-penetrance p53 allele that contributes in a tissue-specific manner to the development of pediatric ACC.
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Recent analyses suggest a founder effect for the p.R337H mutation in most cases, although de novo mutations may still exist.
“The p.R337H mutation was initially considered not to be a result of common ancestry; however, recent analyses suggest a founder effect in most cases, although in some cases, de novo mutations may still exist (7, 39).”
From Adrenocortical carcinoma (2014) · cites this paper as [39]
The p.R337H mutation is a low-penetrance tetramerization domain mutation in Southern Brazil.
“One particular hot spot mutation has been described to date, which is the low-penetrance tetramerization domain p.R337H mutation in Southern Brazil (14, 37–39).”
From Adrenocortical carcinoma (2014) · cites this paper as [39]
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- Authors
- Ribeiro, R. C., Sandrini, F., Figueiredo, B., Zambetti, G. P., Michalkiewicz, E., Lafferty, A. R., DeLacerda, L., Rabin, M., Cadwell, C., Sampaio, G., Cat, I., Stratakis, C. A., & Sandrini, R.
- Affiliations
- National Institutes of Health (US)
- Corresponding author
- Ribeiro, Raul C.
- Rabin, Mark
- ORCID
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2001-07-31
- Volume
- 98
- Issue
- 16
- Pages
- 9330-9335
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC55420
- OpenAlex
- W2120961400
- Cited by
- 541
- References
- 37
- Citations by year
- 2026: 8 · 2025: 18 · 2024: 20 · 2023: 11 · 2022: 20 · 2021: 22 · 2020: 28 · 2019: 16 · 2018: 16 · 2017: 19 · 2016: 29 · 2015: 28 · 2014: 29 · 2013: 25 · 2012: 34
- FWCI
- 13.19
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Cancer Institute (R01CA063230, P01-CA 20180, R01-CA63230, P 30CA 21765, P01CA020180, P30CA021765)
- Topics
- Health Sciences › Medicine › Surgery › Adrenal and Paraganglionic Tumors
- Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
- Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
- Keywords
- TP53 mutation, Li-Fraumeni syndrome, germline mutations, founder effect, southern Brazil
- MeSH terms
- Adrenal Cortex Neoplasms, Base Sequence, Cell Nucleus, Child, Female, Humans, Male, Pedigree, Genes, p53, Tumor Suppressor Protein p53, Point Mutation, DNA Primers, Germ-Line Mutation, Loss of Heterozygosity
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