Genetic p53 Deficiency Partially Rescues the Adrenocortical Dysplasia Phenotype at the Expense of Increased Tumorigenesis
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Telomere dysfunction and shortening induce chromosomal instability and tumorigenesis. In this study, we analyze the adrenocortical dysplasia (acd) mouse, harboring a mutation in Tpp1/Acd. Additional loss of p53 dramatically rescues the acd phenotype in an organ-specific manner, including skin hyperpigmentation and adrenal morphology, but not germ cell atrophy. Survival to weaning age is significantly increased in Acd(acd/acd) p53(-/-) mice. On the contrary, p53(-/-) and p53(+/-) mice with the Acd(acd/acd) genotype show a decreased tumor-free survival, compared with Acd(+/+) mice. Tumors from Acd(acd/acd) p53(+/-) mice show a striking switch from the classic spectrum of p53(-/-) mice toward carcinomas. The acd mouse model provides further support for an in vivo role of telomere deprotection in tumorigenesis.
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TPP1 mutant mice develop adrenocortical dysplasia and other developmental abnormalities largely rescued by p53 deficiency.
“mice mutant for the telomerebinding protein TPP1 develop adrenocortical dysplasia (acd) and other developmental abnormalities that are largely rescued by p53 deficiency (109,110).”
From Telomeres and telomerase in cancer (2010) · cites this paper as [109]
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- Authors
- Else, T., Trovato, A., Kim, A. C., Wu, Y., Ferguson, D. O., Kuick, R. D., Lucas, P. C., & Hammer, G. D.
- Affiliations
- Michigan Medicine (US)
- Corresponding author
- Else, Tobias
- Hammer, Gary D.
- Venue
- Cancer Cell
- Publisher
- Elsevier BV
- Published
- 2009-06
- Volume
- 15
- Issue
- 6
- Pages
- 465-476
- ISSN
- 1535-6108 (ISSN-L)
- PMC
- PMC2703790
- OpenAlex
- W1988175238
- Cited by
- 62
- References
- 62
- Citations by year
- 2025: 1 · 2023: 3 · 2022: 1 · 2020: 4 · 2019: 1 · 2018: 3 · 2017: 2 · 2016: 5 · 2015: 4 · 2014: 1 · 2013: 7 · 2012: 2
- FWCI
- 6.65
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Cancer Cell (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Diabetes and Digestive and Kidney Diseases (R01DK062027)
- Topics
- Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
- Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
- Keywords
- p53 deficiency, telomere dysfunction, chromosomal instability, carcinogenesis, hyperpigmentation, adrenal morphology, tumor-free survival, carcinoma, mouse model
- MeSH terms
- Adrenal Cortex, Animals, Carcinoma, Cell Transformation, Neoplastic, Female, Lymphoma, Male, Mice, Transgenic, Organ Specificity, Phenotype, Sarcoma, Skin Neoplasms, Skin Pigmentation, Spermatogenesis, Testis, Tumor Suppressor Protein p53, Telomere, Telomere-Binding Proteins, Chromosomal Instability, Mice
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