Evidence map›Paper›PMID 22971344›Full record

ArticleCancer research2012

RhoJ regulates melanoma chemoresistance by suppressing pathways that sense DNA damage.

Hsiang Ho, Jayavani Aruri, Rubina Kapadia, Hootan Mehr, Michael A White, Anand K Ganesan

Open access · greenAbstract read
In one paragraph

Article in Cancer research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Translational andrology and urology · 2025
    Article
  6. Article
  7. Review
  8. Precision Oncology: Advances in Drug Delivery and Imaging.Recent advances in drug delivery and formulation · 2025
    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

6 authors at 2 institutions in 1 country.

Hsiang HoDepartment of Dermatology, University of California at Irvine, Irvine, California 92697, USA.
Jayavani Aruri
Rubina Kapadia
Hootan Mehr
Michael A White
Anand K Ganesan
The University of Texas Southwestern Medical Center · USUniversity of California, Irvine · US

Funding

Univ.of Calif., Irvine Cancer Center Support GrantP30CA062203 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI Christine Hui · 1994 to 2026
$57.9M
WOUND MIGRATION FORCE MONITORINGP41RR001192 · NCRR · UNIVERSITY OF CALIFORNIA-IRVINE · PI LYUBOVITSKY, JULIA · 1985 to 2011
$14.2M
INSTITUTE FOR CLINICAL AND TRANSLATIONAL SCIENCEUL1RR031985 · NCRR · UNIVERSITY OF CALIFORNIA-IRVINE · PI COOPER, DAN M · 2010 to 2011
$7.2M
COMPONENTS OF RAS-MEDIATED GROWTH CONTROLR01CA071443 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI WHITE, MICHAEL A. · 1996 to 2015
$4.8M
Aldehyde dehydrogenase: A novel regulator of melanin biogenesisK08AR056001 · NIAMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI GANESAN, ANAND K · 2009 to 2013
$551k
NCI NIH HHS CA71443NCI NIH HHS P30 CA062203NCI NIH HHS R01 CA071443NCRR NIH HHS P41 RR001192NCRR NIH HHS P41-RR01192NCRR NIH HHS UL1 RR031985NIAMS NIH HHS 1K08AR056001NIAMS NIH HHS K08 AR056001
6 · The paper itself

Abstract

Melanomas resist conventional chemotherapeutics, in part, through intrinsic disrespect of apoptotic checkpoint activation. In this study, using an unbiased genome-wide RNA interference screen, we identified RhoJ and its effector PAK1, as key modulators of melanoma cell sensitivity to DNA damage. We find that RhoJ activates PAK1 in response to drug-induced DNA damage, which then uncouples ATR from its downstream effectors, ultimately resulting in a blunted DNA damage response (DDR). In addition, ATR suppression leads to the decreased phosphorylation of ATF2 and consequent increased expression of the melanocyte survival gene Sox10 resulting in a higher DDR threshold required to engage melanoma cell death. In the setting of normal melanocyte behavior, this regulatory relationship may facilitate appropriate epidermal melanization in response to UV-induced DNA damage. However, pathologic pathway activation during oncogenic transformation produces a tumor that is intrinsically resistant to chemotherapy and has the propensity to accumulate additional mutations. These findings identify DNA damage agents and pharmacologic inhibitors of RhoJ/PAK1 as novel synergistic agents that can be used to treat melanomas that are resistant to conventional chemotherapies.

Indexed as

Cell Line, TumorDNA DamageDrug Resistance, NeoplasmFlow CytometryHigh-Throughput Screening AssaysHumansMelanomap21-Activated Kinasesrho GTP-Binding ProteinsSignal TransductionTransfectionp21-Activated KinasesPAK1 protein, humanrho GTP-Binding ProteinsRHOJ protein, human

Identifiers

PMID22971344
PMCPMC3548429
OpenAlexW2164456343

What OpenQuestion holds

Textmetadata
LicenceTDM
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.