Cited by 64Cancer-related Molecular PathwaysUbiquitin and proteasome pathwaysCell death mechanisms and regulation

A role of HAUSP in tumor suppression in a human colon carcinoma xenograft model.

Open access
Becker, Kerstin, Marchenko, Natalia, Palacios, Gustavo, Moll, Ute M.·2008·Cell Cycle

Abstract

The protease HAUSP is a critical component of the p53-Mdm2 pathway and acts as a specific deubiquitinase for both p53 and Mdm2 and thus is important for p53 regulation. In knock-down and knock-out cellular systems it was observed that ablation of HAUSP induces profound stabilization of p53 due to enhanced degradation of Mdm2. Thus, inhibiting HAUSP by small compound interference has been proposed as a rational therapeutic strategy to activate p53 in p53 wild type tumors. However, HAUSP-mediated effects in the p53-Mdm2 axis are highly complex and non-linear and to date the role of HAUSP in tumor suppression in vivo remains unexplored. Here we investigate the effect of HAUSP up and downregulation on cell proliferation, apoptosis and tumor growth in vitro and in a xenograft model in vivo, using an inducible isogenic human colon carcinoma cell system. Importantly, in the absence of stress, both HAUSP up and downregulation inhibit cell proliferation in vitro and tumor growth in vivo due to constitutively elevated p53 levels. Moreover, tumors with HAUSP up and downregulation respond to radiotherapy with further growth inhibition. However, HAUSP downregulation causes resistance to Camptothecin- and irradiation-induced apoptosis, which correlates with suppressed mitochondrial translocation of p53. Our data suggest that changes in HAUSP modulate tumor growth and apoptotic sensitivity in vivo.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.4161/cc.7.9.5756

Cites

35 of 35 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • One way USP7 inhibitors kill cancer cells is via stabilization of p53, resulting from degradation of Mdm2 in the absence of its USP7-mediated deubiquitination.

    “One way through which this occurs is via the stabilization of p53, resulting from the degradation of Mdm2 in the absence of its USP7-mediated deubiquitination (Li et al., 2002, 2004; Cummins et al., 2004; Becker et al., 2008; Kategaya et al., 2017).”

    From USP7 Is a Master Regulator of Genome Stability (2020) · cites this paper as Becker et al., 2008

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Marchenko ND, Zaika A, Moll UM. Death signal-induced localization of p53 protein to mitochondria. A potential role in apoptotic signaling. J Biol Chem 2000; 275:16202-12.

Cited by

Sorted by citations

Authors
Becker, K., Marchenko, N., Palacios, G., & Moll, U. M.
Affiliations
  • Stony Brook University (US)
  • University of Göttingen (DE)
Venue
Cell Cycle
Published
2008-05
Volume
7
Issue
9
Pages
1205-1213
ISSN
  • 1538-4101 (ISSN-L)
  • 1551-4005
OpenAlex
W1996657349
Cited by
63
References
35
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 8 · 2020: 6 · 2019: 3 · 2018: 1 · 2017: 3 · 2016: 5 · 2015: 6 · 2014: 3 · 2013: 2 · 2012: 5
FWCI
1.94
Type
journal article
Language
en
Open access
Locations
  • Cell Cycle (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R01CA060664)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
USP7, p53, MDM2, deubiquitinase, colon cancer, tumor suppression, xenograft models, apoptosis, radiosensitivity, camptothecin resistance, cell proliferation
MeSH terms
Ubiquitin-Specific Peptidase 7, Animals, Carcinoma, Colonic Neoplasms, Disease Models, Animal, Humans, Mice, Nude, Neoplasm Invasiveness, Radiotherapy, Down-Regulation, Up-Regulation, Tumor Suppressor Protein p53, Apoptosis, Drug Resistance, Neoplasm, Protein Transport, Xenograft Model Antitumor Assays, Tumor Suppressor Proteins, Ubiquitin Thiolesterase, Cell Line, Tumor, Cell Proliferation, Mice, Proto-Oncogene Proteins c-mdm2, Ubiquitination

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review