Evidence map›Paper›PMID 34244484›Full record

ArticleNature communications2021

Homozygous MTAP deletion in primary human glioblastoma is not associated with elevation of methylthioadenosine.

Yasaman Barekatain, Jeffrey J Ackroyd, Victoria C Yan, Sunada Khadka, Lin Wang, Ko-Chien Chen, Anton H Poral, Theresa Tran, Dimitra K Georgiou, Kenisha Arthur and 11 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

36 citing papers in PubMed, 50 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Exploiting Synthetic Lethality of PRMT5 for Precision Treatment of MTAP-Deficient Glioblastoma.International journal of translational medicine (Basel, Switzerland) · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
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

21 authors at 5 institutions in 1 country.

Yasaman BarekatainDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. yasbarekat@gmail.com.ORCID 0000-0002-4454-1496
Jeffrey J AckroydDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Victoria C YanDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.ORCID 0000-0003-0837-5184
Sunada KhadkaDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Lin WangDepartment of Chemistry and Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.
Ko-Chien ChenDepartment of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Anton H PoralDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Theresa TranDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Dimitra K GeorgiouDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.ORCID 0000-0001-8786-2495
Kenisha ArthurDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Yu-Hsi LinDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Nikunj SataniDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.ORCID 0000-0003-3908-3731
Elliot S BallatoDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.ORCID 0000-0002-8484-5531
Eliot I BehrDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.ORCID 0000-0002-1018-0733
Ana C deCarvalhoDepartment of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA.ORCID 0000-0003-1183-4548
Roel G W VerhaakThe Jackson Laboratory for Genomic Medicine, Farmington, CT, USA.
John de GrootDepartment of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Jason T HuseDepartment of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
John M AsaraDepartment of Medicine, Harvard Medical School, and Division of Signal Transduction, Beth Israel Deaconess Medical Center, Boston, MA, USA.
Raghu KalluriDepartment of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.ORCID 0000-0002-2190-547X
Florian L MullerDepartment of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. aettius@aol.com.ORCID 0000-0001-7568-2948
The University of Texas MD Anderson Cancer Center · USBeth Israel Deaconess Medical Center · USHenry Ford Hospital · USJackson Laboratory · USPrinceton University · US

Funding

Tropism Enhanced Oncolytic Adenovirus for the Treatment of Brain TumorsP50CA127001 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Juan Fueyo · 2008 to 2026
$41.2M
Tuberous Sclerosis-Pathway and PathogenesisP01CA120964 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI David J. Kwiatkowski · 2007 to 2026
$35.9M
Collateral Deletions Expose Targetable Metabolic Vulnerabilities in the PTEN locusR21CA226301 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI MULLER, FLORIAN · 2018 to 2019
$378k
NCI NIH HHS P01 CA120964NCI NIH HHS P50 CA127001NCI NIH HHS R21 CA226301
6 · The paper itself

Abstract

Homozygous deletion of methylthioadenosine phosphorylase (MTAP) in cancers such as glioblastoma represents a potentially targetable vulnerability. Homozygous MTAP-deleted cell lines in culture show elevation of MTAP's substrate metabolite, methylthioadenosine (MTA). High levels of MTA inhibit protein arginine methyltransferase 5 (PRMT5), which sensitizes MTAP-deleted cells to PRMT5 and methionine adenosyltransferase 2A (MAT2A) inhibition. While this concept has been extensively corroborated in vitro, the clinical relevance relies on exhibiting significant MTA accumulation in human glioblastoma. In this work, using comprehensive metabolomic profiling, we show that MTA secreted by MTAP-deleted cells in vitro results in high levels of extracellular MTA. We further demonstrate that homozygous MTAP-deleted primary glioblastoma tumors do not significantly accumulate MTA in vivo due to metabolism of MTA by MTAP-expressing stroma. These findings highlight metabolic discrepancies between in vitro models and primary human tumors that must be considered when developing strategies for precision therapies targeting glioblastoma with homozygous MTAP deletion.

Indexed as

Antineoplastic AgentsBrainBrain NeoplasmsCell Line, TumorCulture Media, ConditionedDeoxyadenosinesFemaleFrozen SectionsGlioblastomaHomozygoteHumansMetabolomicsMethionine AdenosyltransferaseMolecular Targeted TherapyPrecision MedicineProtein-Arginine N-Methyltransferases5'-methylthioadenosine5'-methylthioadenosine phosphorylaseAntineoplastic AgentsCulture Media, ConditionedDeoxyadenosinesMAT2A protein, humanMethionine AdenosyltransferasePRMT5 protein, humanProtein-Arginine N-MethyltransferasesPurine-Nucleoside PhosphorylaseThionucleosides

Identifiers

PMID34244484
PMCPMC8270912
OpenAlexW3180131388

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.