Evidence map›Paper›PMID 37228498›Full record

ArticleFrontiers in oncology2023

Preclinical investigations of the efficacy of the glutaminase inhibitor CB-839 alone and in combinations in chronic lymphocytic leukemia.

Natalia Timofeeva, Mary L Ayres, Natalia Baran, Janice M Santiago-O'Farrill, Gamze Bildik, Zhen Lu, Marina Konopleva, Varsha Gandhi

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
6.6field-weighted citation impact, top 3% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  14. Endothelial metabolic zonation in the vascular network: a spatiotemporal blueprint for angiogenesis.American journal of physiology. Heart and circulatory physiology · 2025
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  18. CB-839 induces reversible dormancy in lung tumor-cells.European journal of pharmacology · 2024
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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

8 authors at 1 institution in 1 country.

Natalia TimofeevaDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Mary L AyresDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Natalia BaranDepartment of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Janice M Santiago-O'FarrillDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Gamze BildikDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Zhen LuDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Marina KonoplevaDepartment of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
Varsha GandhiDepartment of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
The University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Fabien Delerue · 1985 to 2026
$290.8M
University of Texas M.D. Anderson Cancer SPORE-LeukemiaP50CA100632 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI SHPALL, ELIZABETH J · 2003 to 2023
$43.7M
NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA100632
6 · The paper itself

Abstract

Introduction: Chronic lymphocytic leukemia (CLL) cells are metabolically flexible and adapt to modern anticancer treatments. Bruton tyrosine kinase (BTK) and B-cell lymphoma-2 (BCL-2) inhibitors have been widely used to treat CLL, but CLL cells become resistant to these treatments over time. CB-839 is a small-molecule glutaminase-1 (GLS-1) inhibitor that impairs glutamine use, disrupts downstream energy metabolism, and impedes the elimination of reactive oxygen species. Methods: To investigate the Results: We found that CB-839 caused dose-dependent decreases in GLS-1 activity and glutathione synthesis. CB-839-treated cells also showed increased mitochondrial superoxide metabolism and impaired energy metabolism, which were reflected in decreases in the oxygen consumption rate and depletion of the adenosine triphosphate pool and led to the inhibition of cell proliferation. In the cell lines, CB-839 combined with venetoclax or AZD-5991, but not with ibrutinib, demonstrated synergism with an increased apoptosis rate and cell proliferation inhibition. In the primary lymphocytes, no significant effects of CB-839 alone or in combination with venetoclax, ibrutinib, or AZD-5991 were observed. Discussion: Our findings suggest that CB-839 has limited efficacy in CLL treatment and shows limited synergy in combination with widely used CLL drugs.

Indexed as

Bcl-2 inhibitorBTK - Bruton’s tyrosine kinaseCLL - chronic lymphoblastic leukemiaglutamine (Gln) metabolismibrutinibMcl-1 inhibitorvenetoclax

Identifiers

PMID37228498
PMCPMC10203524
OpenAlexW4375950614

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.