Evidence map›Paper›PMID 21688086›Full record

ArticlePathology oncology research : POR2012

Effect of shRNA mediated down-regulation of Annexin A2 on biological behavior of human lung adencarcinoma cells A549.

Yue-xiang Wang, Hui Lv, Ze-xia Li, Cui Li, Xiao-ying Wu

Abstract read
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In one paragraph

Article in Pathology oncology research : POR, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
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  10. Cathepsin B: multiple roles in cancer.Proteomics. Clinical applications · 2014
    Review
  11. Article
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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

5 authors at 2 institutions in 1 country.

Yue-xiang WangDepartment of Medical Ultrastructure, Xiangya School of Medicine, Central South University, Changsha, Hunan, 410078, People's Republic of China.
Hui Lv
Ze-xia Li
Cui Li
Xiao-ying Wu
Central South University · CNXiangya Hospital Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the previous study, we found that Annexin A2 was significantly up-regulated in lung cancer and could induce related-antigen in lung cancer patients' serum. To further study the function of Annexin A2, the short hairpin RNA plasmid targeting Annexin A2 was constructed in vitro and transfected into human lung adencarcinoma A549 cells. Knocking down Annexin A2 expression by shRNA, the mRNA level of Annexin A2 was investigated by semi-quantitative RT-PCR. The expression of Annexin A2 protein was examined by Western Blotting and Immuocytochemistry. MTT assay and Transwell chamber model were used to evaluate proliferation and invasion of A549 cells in vitro. The concentration of matrix metalloproteinase-2 (MMP-2) and cathepsin B (CB) in the supernatant was evaluated by ELISA. At 48 h after transfection, the expression of Annexin A2 mRNA and protein was down-regulated significantly, respectively (p < 0.05).The proliferation and invasion capability of A549 cells also decreased significantly (p < 0.05). The concentration of MMP-2 and CB was down-regulated obviously, respectively (p < 0.05). This study implies that Annexin A2 might play an important role in the progression and invasion of human lung cancer cells, and could promote progression of lung cancer by regulating the expression of MMP-2 and CB.

Indexed as

AdenocarcinomaAnnexin A2Blotting, WesternCathepsin BCell AdhesionCell Line, TumorCell MovementCell ProliferationDown-RegulationEnzyme-Linked Immunosorbent AssayHumansImmunoenzyme TechniquesLung NeoplasmsMatrix Metalloproteinase 2Neoplasm InvasivenessReal-Time Polymerase Chain ReactionAnnexin A2Cathepsin BMatrix Metalloproteinase 2RNA, MessengerRNA, Small Interfering

Identifiers

PMID21688086
OpenAlexW2044778522

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.