Evidence map›Paper›PMID 17380207›Full record

ArticleThe Journal of clinical investigation2007

Mesenchymal cells regulate the response of acute lymphoblastic leukemia cells to asparaginase.

Shotaro Iwamoto, Keichiro Mihara, James R Downing, Ching-Hon Pui, Dario Campana

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 161 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed, 1 pooled it
20.7field-weighted citation impact, top 1% 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

161 citing papers in PubMed, 1 synthesis or guideline pooled it, 332 citations in OpenAlex.

  1. Pooled it
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  14. Metabolism of asparagine in the physiological state and cancer.Cell communication and signaling : CCS · 2024
    Review
  15. Utility ofEpigenetics · 2023
    Article
  16. Article
  17. Review
  18. Discovery and Targeting of a Noncanonical Mechanism of Sarcoma Resistance to ADI-PEG20 Mediated by the Microenvironment.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Article
  19. Article
  20. Article

101 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Shotaro IwamotoDepartment of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.
Keichiro Mihara
James R Downing
Ching-Hon Pui
Dario Campana
St. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI SUZANNE J. BAKER · 1985 to 2026
$166.9M
DETECTION AND THERAPY OF RESIDUAL LEUKEMIA IN CHILDRENR01CA060419 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CAMPANA, DARIO · 1998 to 2006
$1.7M
Beta CELL PROGENITORS AND BONE MARROW MICROENVIRONMENTR01CA058297 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CAMPANA, DARIO · 1993 to 2004
$1.3M
DETECTION OF MINIMAL RESIDUAL LEUKEMIA IN CHILDRENU01CA060419 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CAMPANA, DARIO · 1993 to 1996
–
NCI NIH HHS CA21765NCI NIH HHS CA58297NCI NIH HHS CA60419NCI NIH HHS P30 CA021765NCI NIH HHS R01 CA058297NCI NIH HHS R01 CA060419NCI NIH HHS U01 CA060419
6 · The paper itself

Abstract

Because of their low asparagine synthetase (ASNS) expression and asparagine biosynthesis, acute lymphoblastic leukemia (ALL) cells are exquisitely sensitive to asparagine depletion. Consequently, asparaginase is a major component of ALL therapy, but the mechanisms regulating the susceptibility of leukemic cells to this agent are unclear. In 288 children with ALL, cellular ASNS expression was more likely to be high in T-lineage ALL and low in B-lineage ALL with TEL-AML1 or hyperdiploidy. However, ASNS expression levels in bone marrow-derived mesenchymal cells (MSCs), which form the microenvironment where leukemic cells grow, were on average 20 times higher than those in ALL cells. MSCs protected ALL cells from asparaginase cytotoxicity in coculture experiments. This protective effect correlated with levels of ASNS expression: downregulation by RNA interference decreased the capacity of MSCs to protect ALL cells from asparaginase, whereas enforced ASNS expression conferred enhanced protection. Asparagine secretion by MSCs was directly related to their ASNS expression levels, suggesting a mechanism - increased concentrations of asparagine in the leukemic cell microenvironment - for the protective effects we observed. These results provide what we believe to be a new basis for understanding asparaginase resistance in ALL and indicate that MSC niches in the bone marrow can form a safe haven for leukemic cells.

Indexed as

Antineoplastic AgentsAsparaginaseAsparagineAspartate-Ammonia LigaseBone Marrow CellsCell DivisionChildGene Expression ProfilingHumansMesenchymal Stem CellsPolymerase Chain ReactionPrecursor Cell Lymphoblastic Leukemia-LymphomaAntineoplastic AgentsAsparaginaseAsparagineAspartate-Ammonia Ligase

Identifiers

PMID17380207
PMCPMC1821067
OpenAlexW2024968355

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.