Evidence map›Paper›PMID 19258312›Full record

ArticleThe Journal of biological chemistry2009

Identification of GRO1 as a critical determinant for mutant p53 gain of function.

Wensheng Yan, Xinbin Chen

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.2field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

52 citing papers in PubMed, 84 citations in OpenAlex.

  1. The Significance of CXCL1 in Cancer: An Overview of Molecular Mechanisms.International journal of molecular sciences · 2026
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  10. International journal of molecular sciences · 2022
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  14. Chrysosplenol d, a Flavonol fromInternational journal of molecular sciences · 2020
    Article
  15. Review
  16. Gain-of-Function Mutations in p53 in Cancer Invasiveness and Metastasis.International journal of molecular sciences · 2020
    Review
  17. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Wensheng YanCenter for Comparative Oncology, University of California, Davis, California 95616, USA.
Xinbin Chen
University of California, Davis · US

Funding

Regulation of Mutant P53 Expression and Oncogenic ActivityR01CA121137 · NCI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI CHEN, XINBIN · 2007 to 2016
$2.8M
NCI NIH HHS R01CA121137
6 · The paper itself

Abstract

Mutant p53 gain of function contributes to cancer progression, increased invasion and metastasis potentials, and resistance to anticancer therapy. The ability of mutant p53 to acquire its gain of function is shown to correlate with increased expression of progrowth genes, such as c-MYC, MDR1, and NF-kappaB2. However, most of the published studies to identify mutant p53 target genes were performed in a cell system that artificially overexpresses mutant p53. Thus, it remains unclear whether such mutant p53 targets can be regulated by endogenous physiological levels of mutant p53. Here, we utilized SW480 and MIA-PaCa-2 cells, in which endogenous mutant p53 can be inducibly knocked down, to identify mutant p53 target genes that potentially mediate mutant p53 gain of function. We found that knockdown of mutant p53 inhibits GRO1 expression, whereas ectopic expression of mutant R175H in p53-null HCT116 cells increases GRO1 expression. In addition, we found that endogenous mutant p53 is capable of binding to and activating the GRO1 promoter. Interestingly, ectopic expression of GRO1 can rescue the proliferative defect in SW480 and MIA-PaCa-2 cells induced by knockdown of mutant p53. Conversely, knockdown of endogenous GRO1 inhibits cell proliferation and thus abrogates mutant p53 gain of function in SW480 cells. Taken together, our findings define a novel mechanism by which mutant p53 acquires its gain of function via transactivating the GRO1 gene in cancer cells. Thus, targeting GRO1 for cancer therapy would be applicable to a large portion of human tumors with mutant p53, but the exploration of GRO1 as a potential target should take the mutation status of p53 into consideration.

Indexed as

Gene Expression Regulation, NeoplasticMutationPromoter Regions, GeneticCell Line, TumorCell ProliferationChemokine CXCL1Gene Knockdown TechniquesHumansNeoplasmsTumor Suppressor Protein p53Chemokine CXCL1CXCL1 protein, humanTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID19258312
PMCPMC2673286
OpenAlexW2043676834

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.