Evidence map›Paper›PMID 24430184›Full record

ArticleThe Journal of clinical investigation2014

Inactivation of SAG/RBX2 E3 ubiquitin ligase suppresses KrasG12D-driven lung tumorigenesis.

Hua Li, Mingjia Tan, Lijun Jia, Dongping Wei, Yongchao Zhao, Guoan Chen, Jie Xu, Lili Zhao, Dafydd Thomas, David G Beer and 1 more

Abstract read
In one paragraph

Article in The Journal of clinical investigation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

59 citing papers in PubMed, 86 citations in OpenAlex.

  1. Trial
  2. Review
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  9. Article
  10. Protein neddylation and its role in health and diseases.Signal transduction and targeted therapy · 2024
    Review
  11. Inactivation ofMedComm · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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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

11 authors at 1 institution in 1 country.

Hua Li
Mingjia Tan
Lijun Jia
Dongping Wei
Yongchao Zhao
Guoan Chen
Jie Xu
Lili Zhao
Dafydd Thomas
David G Beer
Yi Sun
University of Michigan–Ann Arbor · US

Funding

XenograftP30CA046592 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI THEODORE S LAWRENCE · 1988 to 2026
$178.2M
SAG E3 ubiquitin ligase in regulation of transformation and carcinogenesisR01CA118762 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SUN, YI · 2006 to 2015
$2.6M
Role of SAG/RBX2 E3 Ubiquitin Ligase in Skin CarcinogenesisR01CA171277 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SUN, YI · 2013 to 2017
$1.6M
Anti-pancreatic tumorigenesis by inactivation of SAG/RBX2 E3 ubiquitin ligaseR21CA170995 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SUN, YI · 2013 to 2014
$367k
NCI NIH HHS CA118762NCI NIH HHS CA170995NCI NIH HHS CA171277NCI NIH HHS P30 CA046592NCI NIH HHS R01 CA118762NCI NIH HHS R01 CA171277NCI NIH HHS R21 CA170995
6 · The paper itself

Abstract

Cullin-RING ligases (CRLs) are a family of E3 ubiquitin ligase complexes that rely on either RING-box 1 (RBX1) or sensitive to apoptosis gene (SAG), also known as RBX2, for activity. RBX1 and SAG are both overexpressed in human lung cancer; however, their contribution to patient survival and lung tumorigenesis is unknown. Here, we report that overexpression of SAG, but not RBX1, correlates with poor patient prognosis and more advanced disease. We found that SAG is overexpressed in murine KrasG12D-driven lung tumors and that Sag deletion suppressed lung tumorigenesis and extended murine life span. Using cultured lung cancer cells, we showed that SAG knockdown suppressed growth and survival, inactivated both NF-κB and mTOR pathways, and resulted in accumulation of tumor suppressor substrates, including p21, p27, NOXA, and BIM. Importantly, growth suppression by SAG knockdown was partially rescued by simultaneous knockdown of p21 or the mTOR inhibitor DEPTOR. Treatment with MLN4924, a small molecule inhibitor of CRL E3s, also inhibited the formation of KrasG12D-induced lung tumors through a similar mechanism involving inactivation of NF-κB and mTOR and accumulation of tumor suppressor substrates. Together, our results demonstrate that Sag is a Kras-cooperating oncogene that promotes lung tumorigenesis and suggest that targeting SAG-CRL E3 ligases may be an effective therapeutic approach for Kras-driven lung cancers.

Indexed as

Gene Expression Regulation, NeoplasticAnimalsCell Line, TumorCell SurvivalCell Transformation, NeoplasticFemaleGene DeletionGene SilencingGenotypeHumansLung NeoplasmsMaleMiceMutationNF-kappa BOxidation-ReductionHras protein, mouseKRAS protein, humanNF-kappa BProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsRNA, Small InterferingRNF7 protein, humanUbiquitin-Protein Ligases

Identifiers

PMID24430184
PMCPMC3904615
OpenAlexW2160325987

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.