Evidence map›Paper›PMID 18509530›Full record

ArticlePloS one2008

M867, a novel selective inhibitor of caspase-3 enhances cell death and extends tumor growth delay in irradiated lung cancer models.

Kwang Woon Kim, Luigi Moretti, Bo Lu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

31 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Review
  3. The concealed side of caspases: beyond a killer of cells.Cellular and molecular life sciences : CMLS · 2024
    Review
  4. Article
  5. Article
  6. Research progress on mitochondria regulating tumor immunity.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2024
    Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Mitochondria as multifaceted regulators of cell death.Nature reviews. Molecular cell biology · 2020
    Review
  12. Article
  13. Role of autophagy in regulating the radiosensitivity of tumor cells.Journal of cancer research and clinical oncology · 2017
    Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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

3 authors at 1 institution in 1 country.

Kwang Woon KimDepartment of Radiation Oncology, Vanderbilt Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America.
Luigi Moretti
Bo Lu
Vanderbilt University · US

Funding

Radiosensitization via Targeting Cell DeathR01CA125842 · NCI · VANDERBILT UNIVERSITY · PI LU, BO · 2007 to 2010
$935k
NCI NIH HHS 1R01 CA125842-01A1NCI NIH HHS R01 CA125842
6 · The paper itself

Abstract

backgroundLung cancer remains the leading cause of cancer death worldwide. Radioresistance of lung cancer cells results in unacceptable rate of loco-regional failure. Although radiation is known to induce apoptosis, our recent study showed that knockdown of pro-apoptotic proteins Bak and Bax resulted in an increase in autophagic cell death and lung cancer radiosensitivity in vitro. To further explore the potential of apoptosis inhibition as a way to sensitize lung cancer for therapy, we tested M867, a novel chemical and reversible caspase-3 inhibitor, in combination with ionizing radiation in vivo and in vitro. METHODS AND

findingsM867 reduced clonogenic survival in H460 lung cancer cells (DER = 1.27, p = 0.007) compared to the vehicle-treated treated cells. We found that administration of M867 with ionizing radiation in an in vivo mouse hind limb lung cancer model was well tolerated, and produced a significant tumor growth delay compared to radiation alone. A dramatic decrease in tumor vasculature was observed with M867 and radiation using von Willebrand factor staining. In addition, Ki67 index showed >5-fold reduction of tumor proliferation in the combination therapy group, despite the reduced levels of apoptosis observed with terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling staining. Radiosensitizing effect of M867 through inhibiting caspases was validated using caspase-3/-7 double-knockout (DKO) mouse embryonic fibroblasts (MEF) cell model. Consistent with our previous study, autophagy contributed to the mechanism of increased cell death, following inhibition of apoptosis. In addition, matrigel assay showed a decrease in in vitro endothelial tubule formation during the M867/radiation combination treatment.

conclusionsM867 enhances the cytotoxic effects of radiation on lung cancer and its vasculature both in vitro and in vivo. M867 has the potential to prolong tumor growth delay by inhibiting tumor proliferation. Clinical trials are needed to determine the potential of this combination therapy in patients with locally advanced lung cancer.

Indexed as

Caspase InhibitorsAnimalsApoptosisAutophagyBase SequenceCell Line, TumorCysteine Proteinase InhibitorsHumansLung NeoplasmsMiceMice, KnockoutOxadiazolesPyrazinesRadiation ToleranceRNA, Small InterferingTransplantation, HeterologousCaspase InhibitorsCysteine Proteinase InhibitorsM867 compoundOxadiazolesPyrazinesRNA, Small Interfering

Identifiers

PMID18509530
PMCPMC2386548
OpenAlexW1993043881

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.