Evidence map›Paper›PMID 19628079›Full record

ArticleSurgery2009

Expression of a prometastatic splice variant of osteopontin, OPNC, in human pancreatic ductal adenocarcinoma.

Jennifer Sullivan, Laurel Blair, Amer Alnajar, Tamer Aziz, Chee Yuan Ng, Galina Chipitsyna, Qiaoke Gong, Agnes Witkiewicz, Georg F Weber, David T Denhardt and 2 more

Open access · greenAbstract read
In one paragraph

Article in Surgery, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. Osteopontin (OPN) isoforms, diabetes, obesity, and cancer; what is one got to do with the other? A new role for OPN.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2015
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  7. Review
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  9. Article
  10. Review
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  12. Article
  13. Pre- and post-translational regulation of osteopontin in cancer.Journal of cell communication and signaling · 2011
    Article
  14. Article
  15. Involvement of osteopontin in the matrix-degrading and proangiogenic changes mediated by nicotine in pancreatic cancer cells.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2010
    Article
  16. Article
  17. Review
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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

12 authors at 3 institutions in 1 country.

Jennifer SullivanDepartment of Surgery, Jefferson Pancreatic, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA.
Laurel Blair
Amer Alnajar
Tamer Aziz
Chee Yuan Ng
Galina Chipitsyna
Qiaoke Gong
Agnes Witkiewicz
Georg F Weber
David T Denhardt
Charles J Yeo
Hwyda A Arafat
Thomas Jefferson University · USRutgers, The State University of New Jersey · USUniversity of Cincinnati Medical Center · US

Funding

Nicotine in Pancreatic Cancer: Molecular MechanismsR21CA133753 · NCI · THOMAS JEFFERSON UNIVERSITY · PI ARAFAT, HWYDA A · 2008 to 2009
$396k
NCI NIH HHS R21 CA133753
6 · The paper itself

Abstract

backgroundOsteopontin (OPN) is a secreted phosphoprotein that confers on cancer cells a migratory phenotype. We demonstrated recently that nicotine, a major risk factor in pancreatic ductal adenocarcinoma (PDA), increases OPN expression in PDA cells. An OPN splice variant, OPNc, supports anchorage independence and maybe the most potent OPN isoform to convey metastatic behavior. In this study, we tested the effect of nicotine on OPNc expression and analyzed the correlation between total OPN/OPNc levels and patients' smoking history.

methodsReal-time polymerase chain reaction and ultraviolet light illumination of ethidium-bromide staining were used to examine the mRNA expression in tissue and in PDA cells treated with or without nicotine (3-300 nmol/L). OPN and OPNc were localized by immunohistochemistry, and an enzyme-linked immunosorbent assay was used to analyze OPN serum levels.

resultsNicotine treatment of PDA cells selectively induced de novo expression of OPNc. OPNc was found in 87% of invasive PDA lesions, of which 73% were found in smokers. The levels of OPNc correlated well with higher expression levels of total OPN in the tissue and serum from patients with invasive PDA.

conclusionOur data suggest that smoking and nicotine may contribute to PDA metastatic potential through promoting OPNc expression. Although the direct role of OPNc in PDA progression is not defined, OPNc may have value as a diagnostic and prognostic marker, especially in invasive PDA.

Indexed as

Carcinoma, Pancreatic DuctalCell Line, TumorComputers, HandheldHumansImmunohistochemistryNicotineOsteopontinPancreatic NeoplasmsProtein IsoformsRNA, MessengerSmokingTumor Cells, CulturedNicotineOsteopontinProtein IsoformsRNA, Messenger

Identifiers

PMID19628079
PMCPMC2777713
OpenAlexW2010680873

What OpenQuestion holds

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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.