Evidence map›Paper›PMID 21411502›Full record

ArticleCancer prevention research (Philadelphia, Pa.)2011

Targeting p53-null neuroblastomas through RLIP76.

Jyotsana Singhal, Sushma Yadav, Lokesh Dalasanur Nagaprashantha, Rit Vatsyayan, Sharad S Singhal, Sanjay Awasthi

Open access · bronzeAbstract read
In one paragraph

Article in Cancer prevention research (Philadelphia, Pa.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.9field-weighted citation impact, top 23% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Rlip76: An Unexplored Player in Neurodegeneration and Alzheimer's Disease?International journal of molecular sciences · 2022
    Review
  3. Article
  4. Article
  5. Article
  6. Activating p53 function by targeting RLIP.Biochimica et biophysica acta. Reviews on cancer · 2021
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. RLIP76 Targeted Therapy for Kidney Cancer.Pharmaceutical research · 2015
    Review
  13. Oncolytic adenovirus-mediated short hairpin RNA targeting MYCN gene induces apoptosis by upregulating RKIP in neuroblastoma.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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.

Jyotsana SinghalDepartment of Molecular Biology and Immunology, University of North Texas Health Science Center, Fort Worth, Texas 76107-2699, USA.
Sushma Yadav
Lokesh Dalasanur Nagaprashantha
Rit Vatsyayan
Sharad S Singhal
Sanjay Awasthi
University of North Texas · USUniversity of North Texas Health Science Center · US

Funding

MECHANISM OF DRUG TRANSPORT IN LUNG CANCER CELLSR01CA077495 · NCI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI AWASTHI, SANJAY · 1998 to 2011
$2.8M
NCI NIH HHS CA 77495NCI NIH HHS R01 CA077495
6 · The paper itself

Abstract

The search for p53-independent mechanism of cancer cell killing is highly relevant to pediatric neuroblastomas, where successful therapy is limited by its transformation into p53-mutant and a highly drug-resistant neoplasm. Our studies on the drug-resistant p53-mutant as compared with drug-resistant p53 wild-type neuroblastoma revealed a novel mechanism for resistance to apoptosis: a direct role of p53 in regulating the cellular concentration of proapoptotic alkenals by functioning as a specific and saturable allosteric inhibitor of the alkenal-glutathione conjugate transporter, RLIP76. The RLIP76-p53 complex was showed by both immunoprecipitation analyses of purified proteins and immunofluorescence analysis. Drug transport studies revealed that p53 inhibited both basal and PKCα-stimulated transport of glutathione conjugates of 4HNE (GSHNE) and doxorubicin. Drug resistance was significantly greater for p53-mutant as compared with p53 wild-type neuroblastoma cell lines, but both were susceptible to depletion of RLIP76 by antisense alone. In addition, inhibition of RLIP76 significantly enhanced the cytotoxicity of cisplatin. Taken together, these studies provide powerful evidence for a novel mechanism for drug and apoptosis resistance in p53-mutant neuroblastoma, based on a model of regulation of p53-induced apoptosis by RLIP76, where p53 is a saturable and specific allosteric inhibitor of RLIP76, and p53 loss results in overexpression of RLIP76; thus, in the absence of p53, the drug and glutathione-conjugate transport activities of RLIP76 are enhanced. Most importantly, our findings strongly indicate RLIP76 as a novel target for therapy of drug-resistant and p53-mutant neuroblastoma.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsATP-Binding Cassette TransportersBlotting, WesternChildCisplatinCross-Linking ReagentsDoxorubicinDrug Resistance, MultipleDrug Resistance, NeoplasmGlutathioneGTPase-Activating ProteinsHumansImmunoenzyme TechniquesImmunoprecipitationMaleATP-Binding Cassette TransportersCisplatinCross-Linking ReagentsDoxorubicinGlutathioneGTPase-Activating ProteinsOligonucleotides, AntisenseRALBP1 protein, humanTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID21411502
PMCPMC3107925
OpenAlexW2124895836

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.