Evidence map›Paper›PMID 16254104›Full record

ArticleJournal of clinical pathology2005

Loss of BCL-2 in the progression of oral cancer is not attributable to mutations.

L L Loro, A C Johannessen, O K Vintermyr

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical pathology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 30% 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

8 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. MIB-1, Bcl-2 and p53 in odontogenic myxomas of the jaws.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2007
    Article
  5. Article
  6. Article
  7. To analyse the mitotic and keratinisation correlation withJournal of oral and maxillofacial pathology : JOMFP
    Article
  8. Immunohistochemical expression of COX-2, Ki-67, Bcl-2, Bax, VEGF and CD105 according to histological grading in oral squamous cell carcinoma.Revista espanola de patologia : publicacion oficial de la Sociedad Espanola de Anatomia Patologica y de la Sociedad Espanola de Citologia
    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.

L L LoroDepartment of Odontology-Oral Pathology and Forensic Odontology, Haukeland University Hospital, N5021 Bergen, Norway.
A C Johannessen
O K Vintermyr
Haukeland University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBCL-2 and BAX are important in the regulation of apoptosis. There have been reports of loss of BCL-2 in basal cells of oral epithelial dysplasia (OED) and in oral squamous cell carcinoma (OSCC), and suppression of BAX in poorly differentiated OSCC.

aimTo investigate whether loss of BCL-2 in OED and OSCC, and of BAX in poorly differentiated OSCC could be attributed to BCL-2 and BAX mutations.

methodsImmunohistochemistry and in situ hybridisation were used to confirm BCL-2 and BAX expression. DNA was extracted from archival samples of OED (n = 22) and OSCC (n = 28). The connective tissue part from each section was collected separately and used as the normal reference.

resultsNo mutations were detected in BCL-2 or BAX that could explain their aberrant expression at the mRNA and protein levels in OED and OSCC. The reported A/G polymorphism at codon 7 of BCL-2 was detected in 18 of 50 samples and a novel C/T polymorphism at codon 100 was detected in three of 50 samples.

conclusionsNo mutations were found that could explain loss of BCL-2 in oral dysplasia and carcinoma. An unreported C/T polymorphism in BCL-2 was detected. Downregulation of BCL-2 in OED and OSCC may be the result of transcriptional regulation.

Indexed as

Genes, bcl-2MutationBase Sequencebcl-2-Associated X ProteinCarcinoma, Squamous CellCell DifferentiationDisease ProgressionDNA Mutational AnalysisDNA, NeoplasmGene ExpressionHumansMouth NeoplasmsPolymorphism, Single NucleotidePrecancerous ConditionsProto-Oncogene Proteins c-bcl-2RNA, MessengerBAX protein, humanbcl-2-Associated X ProteinDNA, NeoplasmProto-Oncogene Proteins c-bcl-2RNA, MessengerRNA, Neoplasm

Identifiers

PMID16254104
PMCPMC1770776
OpenAlexW2018692561

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.