Evidence map›Paper›PMID 20579680›Full record

ArticleSurgery2010

Induction of monocyte chemoattractant protein-1 by nicotine in pancreatic ductal adenocarcinoma cells: role of osteopontin.

Melissa Lazar, Jennifer Sullivan, Galina Chipitsyna, Tamer Aziz, Ahmed F Salem, Qiaoke Gong, Agnes Witkiewicz, David T Denhardt, Charles J Yeo, Hwyda A Arafat

Open access · greenAbstract read
In one paragraph

Article in Surgery, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Leptin signaling and cancer chemoresistance: Perspectives.World journal of clinical oncology · 2017
    Article
  6. Review
  7. 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
    Article
  8. RAN GTPase and Osteopontin in Pancreatic Cancer.Pancreatic disorders & therapy · 2013
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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

10 authors at 2 institutions in 1 country.

Melissa LazarDepartment of Surgery, Jefferson Pancreatic, Biliary and Related Cancer Center, Philadelphia, PA, USA.
Jennifer Sullivan
Galina Chipitsyna
Tamer Aziz
Ahmed F Salem
Qiaoke Gong
Agnes Witkiewicz
David T Denhardt
Charles J Yeo
Hwyda A Arafat
Thomas Jefferson University · USRutgers, The State University of New Jersey · US

Funding

Nicotine in Pancreatic Cancer: Molecular MechanismsR21CA133753 · NCI · THOMAS JEFFERSON UNIVERSITY · PI ARAFAT, HWYDA A · 2008 to 2009
$396k
NCI NIH HHS 1R21 CA133753-02NCI NIH HHS R21 CA133753
6 · The paper itself

Abstract

backgroundCigarette smoke and nicotine are among the leading environmental risk factors for developing pancreatic ductal adenocarcinoma (PDA). We showed recently that nicotine induces osteopontin (OPN), a protein that plays critical roles in inflammation and tumor metastasis. We identified an OPN isoform, OPNc, that is selectively inducible by nicotine and highly expressed in PDA tissue from smokers. In this study, we explored the potential proinflammatory role of nicotine in PDA through studying its effect on the expression of monocyte chemoattractant protein (MCP)-1 and evaluated the role of OPN in mediating these effects.

methodsMCP-1 mRNA and protein in PDA cells treated with or without nicotine (3-300 nmol/L) or OPN (0.15-15 nmol/L) were analyzed by real-time polymerase chain reaction and enzyme-linked immunosorbent assay. Luciferase-labeled promoter studies evaluated the effects of nicotine and OPN on MCP-1 transcription. Intracellular and tissue colocalization of OPN and MCP-1 were examined by immunofluorescence and immunohistochemistry.

resultsNicotine treatment significantly increased MCP-1 expression in PDA cells. Interestingly, blocking OPN with siRNA or OPN antibody abolished these effects. Transient transfection of the OPNc gene in PDA cells or their treatment with recombinant OPN protein significantly (P < .05) increased MCP-1 mRNA and protein and induced its promoter activity. MCP-1 was found in 60% of invasive PDA lesions, of whom 66% were smokers. MCP-1 colocalized with OPN in PDA cells and in the malignant ducts, and correlated well with higher expression levels of OPN in the tissue from patients with invasive PDA.

conclusionOur data suggest that cigarette smoking and nicotine may contribute to PDA inflammation by inducing MCP-1 and provide a novel insight into a unique role for OPN in mediating these effects.

Indexed as

Carcinoma, Pancreatic DuctalCell Line, TumorChemokine CCL2Gene ExpressionHumansNicotineOsteopontinPancreatic NeoplasmsPromoter Regions, GeneticRecombinant ProteinsRNA, MessengerRNA, NeoplasmRNA, Small InterferingSmokingTransfectionCCL2 protein, humanChemokine CCL2NicotineOsteopontinRecombinant ProteinsRNA, MessengerRNA, NeoplasmRNA, Small Interfering

Identifiers

PMID20579680
PMCPMC2908036
OpenAlexW2145773378

What OpenQuestion holds

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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.