Cited by 80Ubiquitin and proteasome pathwaysCancer-related Molecular PathwaysDevelopmental Biology and Gene Regulation

Roles of HAUSP-mediated p53 regulation in central nervous system development

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Kon, N, Zhong, J, Kobayashi, Y, Li, M, Szabolcs, M, Ludwig, T, Canoll, P D, Gu, W·2011·Cell Death & Differentiation

Abstract

The deubiquitinase HAUSP (herpesvirus-associated ubiquitin-specific protease; also called USP7) has a critical role in regulating the p53-Mdm2 (murine double minute 2) pathway. By using the conventional knockout approach, we previously showed that hausp inactivation leads to early embryonic lethality. To fully understand the physiological functions of hausp, we have generated mice lacking hausp specifically in the brain and examined the impacts of this manipulation on brain development. We found that deletion of hausp in neural cells resulted in neonatal lethality. The brains from these mice displayed hypoplasia and deficiencies in development, which were mainly caused by p53-mediated apoptosis. Detailed analysis also showed an increase of both p53 levels and p53-dependent transcriptional activation in hausp knockout brains. Notably, neural cell survival and brain development of hausp-mutant mice can largely be restored in the p53-null background. Nevertheless, in contrast to the case of mdm2- and mdm4 (murine double minute 4)-mutant mice, inactivation of p53 failed to completely rescue the neonatal lethality of these hausp-mutant mice. These results indicate that HAUSP-mediated p53 regulation is crucial for brain development, and also suggest that both the p53-dependent and the p53-independent functions of HAUSP contribute to the neonatal lethality of hausp-mutant mice.

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Crossref · 10.1038/cdd.2011.12

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  • A conditional loss-of-function Hausp allele in mice causes p53-dependent cell death in the developing neural system.

    “The development of a conditional loss-of-function allele of Hausp in mice also leads to cell death in a p53-dependent manner in the developing neural system of the mouse (Kon, et al., 2011).”

    From The Mdm network and its regulation of p53 activities: a rheostat of cancer risk (2014) · cites this paper as Kon, et al., 2011

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Authors
Kon, N., Zhong, J., Kobayashi, Y., Li, M., Szabolcs, M., Ludwig, T., Canoll, P. D., & Gu, W.
Affiliations
Columbia University (US)
Corresponding author
Gu, W
Venue
Cell Death & Differentiation
Published
2011-02-25
Volume
18
Issue
8
Pages
1366-1375
ISSN
  • 1350-9047 (ISSN-L)
  • 1476-5403
OpenAlex
W2094903254
Cited by
79
References
43
Citations by year
2026: 5 · 2025: 5 · 2024: 5 · 2023: 4 · 2022: 7 · 2021: 3 · 2020: 9 · 2019: 9 · 2018: 5 · 2017: 3 · 2016: 3 · 2015: 3 · 2014: 7 · 2013: 3 · 2012: 5
FWCI
2.33
Type
journal article
Language
en
Open access
Locations
  • Cell Death and Differentiation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ellison Medical Foundation
  • Leukemia and Lymphoma Society
  • National Institutes of Health
  • National Cancer Institute (P01CA097403, R01CA129627)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
USP7, p53 regulation, MDM2, MDM4, brain development, p53-dependent apoptosis, p53-independent function, neonatal lethality, conditional knockout mice, deubiquitinase
MeSH terms
Ubiquitin-Specific Peptidase 7, Animals, Central Nervous System, Epithelial Cells, Fibroblasts, Lens, Crystalline, Neurons, Endopeptidases, Tissue Distribution, Tumor Suppressor Protein p53, Mice, Knockout, Mice, Ubiquitin-Specific Proteases

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