Evidence map›Paper›PMID 17971900›Full record

ArticleNeoplasia (New York, N.Y.)2007

Targeting antiapoptotic Bcl-2 family members with cell-permeable BH3 peptides induces apoptosis signaling and death in head and neck squamous cell carcinoma cells.

Rongxiu Li, Amanda L Boehm, Michelle B Miranda, Sanjeev Shangary, Jennifer R Grandis, Daniel E Johnson

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Roles and Regulation of BCL-xL in Hematological Malignancies.International journal of molecular sciences · 2022
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Live AttenuatedFrontiers in immunology · 2019
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. The War on Cancer rages on.Neoplasia (New York, N.Y.) · 2009
    Article
  18. Review
  19. Article
  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

6 authors at 2 institutions in 1 country.

Rongxiu LiDepartment of Medicine, University of Pittsburgh School of Medicine, and the University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213-1863, USA.
Amanda L Boehm
Michelle B Miranda
Sanjeev Shangary
Jennifer R Grandis
Daniel E Johnson
UPMC Hillman Cancer Center · USUniversity of Pittsburgh · US

Funding

WILD TYPE P53-BASED ADJUVANT IMMUNOTHERAPY FOR SCCHNP50CA097190 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CHRISTOPHER J. BAKKENIST · 2004 to 2026
$49.6M
Role of Cathepsin D in Chemotherapy Induced Cell DeathR01CA086980 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JOHNSON, DANIEL E · 2001 to 2005
$937k
NCI NIH HHS P50 CA097190NCI NIH HHS P50-CA097190NCI NIH HHS R01 CA086980NCI NIH HHS R01-CA86980
6 · The paper itself

Abstract

Head and neck squamous cell carcinomas (HNSCC) are frequently characterized by chemotherapy and radiation resistance, and by overexpression of Bcl-XL, an antiapoptotic member of the Bcl-2 protein family. In this report we examined whether cell-permeable peptides derived from the BH3 domains of proapoptotic Bax, Bad, or Bak could be used to target Bcl-XL and/or Bcl-2 in HNSCC cells, and induce apoptotic death in these cells. To render the peptides cell permeable, Antennapedia (Ant) or polyarginine (R8) peptide transduction domains were fused to the amino termini. Fluorescence microscopy of peptide-treated HNSCC cells revealed that the BH3 peptides colocalized with mitochondria, the site of Bcl-XL and Bcl-2 expression. By contrast, a mutant peptide (BaxE BH3) which cannot bind Bcl-XL or Bcl-2 was diffusely localized throughout the cytoplasm. Treatment of three HNSCC cell lines (1483, UM-22A, UM-22B) with the wild-type BH3 peptides resulted in loss of viability and induction of apoptosis, as assessed by MTS assays and annexin V staining. In general, Ant-conjugated peptides were more potent than R8-conjugated peptides, and Bad BH3 peptide was typically more potent than Bax BH3 or Bak BH3. Treatment of purified HNSCC mitochondria with BH3 peptides resulted in robust release of cytochrome c. Thus, the relative apoptosis resistance of HNSCC cells is not due to a deficit in this step of the intrinsic, mitochondrial-mediated apoptosis pathway. We conclude that cell-permeable BH3 peptides can be used to target Bcl-XL and/or Bcl-2 in HNSCC, and targeting of these proteins may have therapeutic value in the treatment of this disease.

Indexed as

Amino Acid SequenceAntennapedia Homeodomain ProteinApoptosisBH3 Interacting Domain Death Agonist ProteinCarcinoma, Squamous CellCell Line, TumorCell Membrane PermeabilityFlow CytometryHead and Neck NeoplasmsHumansImmunoblottingMicroscopy, FluorescenceMitochondriaMolecular Sequence DataPeptidesProto-Oncogene Proteins c-bcl-2Antennapedia Homeodomain ProteinBH3 Interacting Domain Death Agonist ProteinBID protein, humanPeptidespolyarginineProto-Oncogene Proteins c-bcl-2apoptosisBcl-2Bcl-XlBH3 peptidesHNSCC

Identifiers

PMID17971900
PMCPMC2040207
OpenAlexW2094520392

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.