Evidence map›Paper›PMID 23525947›Full record

ArticleJournal of neuro-oncology2013

Mutant tristetraprolin: a potent inhibitor of malignant glioma cell growth.

Esther A Suswam, John J Shacka, Kiera Walker, Liang Lu, Xuelin Li, Ying Si, Xiaowen Zhang, Lei Zheng, L Burt Nabors, Heping Cao and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2013. 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
1.5field-weighted citation impact, top 19% 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, 23 citations in OpenAlex.

  1. Review
  2. Inhibition of the RNA Regulator HuR by SRI-42127 Attenuates Neuropathic Pain After Nerve Injury Through Suppression of Neuroinflammatory Responses.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. [Tristetraprolin inhibits autophagy in cultured lung cancer cellsNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2019
    Article
  9. Roles of Tristetraprolin in Tumorigenesis.International journal of molecular sciences · 2018
    Review
  10. Review
  11. Hallmarks of cancer and AU-rich elements.Wiley interdisciplinary reviews. RNA · 2017
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  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

11 authors at 3 institutions in 1 country.

Esther A SuswamDepartment of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294-3300, USA. easuswam@uab.edu
John J Shacka
Kiera Walker
Liang Lu
Xuelin Li
Ying Si
Xiaowen Zhang
Lei Zheng
L Burt Nabors
Heping Cao
Peter H King
University of Alabama at Birmingham · USBirmingham VA Medical Center · USAgricultural Research Service · US

Funding

The Role of HuR in mutant SOD1 dysregulation of VEGF mRNA ProcessingR01NS064133 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KING, PETER H · 2008 to 2011
$1.2M
Dysregulation of VEGF RNA Stability in Amyotrophic Lateral SclerosisK08NS057664 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI LU, LIANG · 2008 to 2012
$729k
Negative Impact of RNA Destabilizer Tristetraprolin on Glioma GrowthK22CA131468 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SUSWAM, ESTHER AZUNGWE · 2009 to 2012
$671k
NCI NIH HHS CA131468NCI NIH HHS K22 CA131468NINDS NIH HHS K08 NS057664NINDS NIH HHS NS057664NINDS NIH HHS R01 NS064133
6 · The paper itself

Abstract

Malignant gliomas rely on the production of certain critical growth factors including VEGF, interleukin (IL)-6 and IL-8, to fuel rapid tumor growth, angiogenesis, and treatment resistance. Post-transcriptional regulation through adenine and uridine-rich elements of the 3' untranslated region is one mechanism for upregulating these and other growth factors. In glioma cells, we have shown that the post-transcriptional machinery is optimized for growth factor upregulation secondary to overexpression of the mRNA stabilizer, HuR. The negative regulator, tristetraprolin (TTP), on the other hand, may be suppressed because of extensive phosphorylation. Here we test that possibility by analyzing the phenotypic effects of a mutated form of TTP (mt-TTP) in which 8 phosphoserine residues were converted to alanines. We observed a significantly enhanced negative effect on growth factor expression in glioma cells at the post-transcriptional and transcriptional levels. The protein became stabilized and displayed significantly increased antiproliferative effects compared to wild-type TTP. Macroautophagy was induced with both forms of TTP, but inhibition of autophagy did not affect cell viability. We conclude that glioma cells suppress TTP function through phosphorylation of critical serine residues which in turn contributes to growth factor upregulation and tumor progression.

Indexed as

Apoptosis3' Untranslated RegionsBlotting, WesternBrain NeoplasmsCell ProliferationEnzyme-Linked Immunosorbent AssayFlow CytometryGliomaHumansImmunoprecipitationInterleukin-6Interleukin-8MutationPhosphorylationReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain Reaction3' Untranslated RegionsInterleukin-6Interleukin-8RNA, MessengerTristetraprolinVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID23525947
PMCPMC3679321
OpenAlexW1993128146

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.