Evidence map›Paper›PMID 19525977›Full record

ArticleOncogene2009

Characterization of tumor suppressive function of P300/CBP-associated factor at frequently deleted region 3p24 in esophageal squamous cell carcinoma.

C Zhu, Y-R Qin, D Xie, D T T Chua, J M Fung, L Chen, L Fu, L Hu, X-Y Guan

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  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

9 authors at 4 institutions in 2 countries.

C ZhuDepartment of Clinical Oncology, The University of Hong Kong, Pokfulam, China.
Y-R Qin
D Xie
D T T Chua
J M Fung
L Chen
L Fu
L Hu
X-Y Guan
University of Hong Kong · HKQueen Mary Hospital · CNFirst Affiliated Hospital of Zhengzhou University · CNSun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Deletion of 3p is one of the most frequent genetic alterations in many tumors, including esophageal squamous cell carcinoma (ESCC). In our recent study, deletion of 3p24 was frequently detected in ESCC and one candidate tumor suppressor gene (TSG), p300/CBP-associated factor (PCAF), was identified within the region. In this study, downregulation of PCAF was detected in 23/40 (57.5%) of primary ESCCs and 4/9 (44.4%) of the ESCC cell lines. A further study found that downregulation of PCAF was also associated with hypermethylation of the promoter region of PCAF gene. Methylation-specific PCR found that promoter methylation was detected in 28/40 (70%) of primary ESCCs and 5/9 (55.6%) of ESCC cell lines. In addition, the expression of PCAF could be reactivated in ESCC cell line KYSE510 after demethylation treatment with 5-aza-dC. Functional studies showed that PCAF was able to suppress tumorigenicity of ESCC cells both in vitro and in vivo, including foci formation, colony formation in soft agar and tumor formation in nude mice. Molecular study found that the tumor suppressive mechanism of PCAF was associated with its role in cell cycle arrest at the G1/S checkpoint by the downregulation of CDK2 and upregulation of p21(waf1/Cip1), Smad4, Rb and p27(Kip1). In conclusion, PCAF might be the target TSG responsible for the 3p24 deletion event, which has an important role in the development and progression of ESCC.

Indexed as

Chromosome DeletionAdultAgedAnimalsApoptosisBlotting, WesternCarcinoma, Squamous CellCell CycleCell Line, TumorChromosomes, Human, Pair 3DNA MethylationEsophageal NeoplasmsFemaleFlow CytometryHumansImmunohistochemistryp300-CBP-Associated Factorp300-CBP Transcription Factors

Identifiers

PMID19525977
OpenAlexW2046833816

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.