Evidence map›Paper›PMID 21641406›Full record

ArticleThe American journal of pathology2011

Secretory leukocyte protease inhibitor (SLPI) expression and tumor invasion in oral squamous cell carcinoma.

Jie Wen, Nikolaos G Nikitakis, Risa Chaisuparat, Teresa Greenwell-Wild, Maria Gliozzi, Wenwen Jin, Azita Adli, Niki Moutsopoulos, Tanxia Wu, Gary Warburton and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The American journal of pathology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

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

  1. Pooled it
  2. Article
  3. Review
  4. Oral Innate Immunity and the Role of Oral Epithelial Cells.Advances in experimental medicine and biology · 2026
    Review
  5. The Role ofBiomolecules · 2025
    Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. 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

11 authors at 3 institutions in 1 country.

Jie WenOral Infection and Immunity Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, USA.
Nikolaos G Nikitakis
Risa Chaisuparat
Teresa Greenwell-Wild
Maria Gliozzi
Wenwen Jin
Azita Adli
Niki Moutsopoulos
Tanxia Wu
Gary Warburton
Sharon M Wahl
National Institute of Dental and Craniofacial Research · USNational Institutes of Health · USUniversity of Maryland, Baltimore · US

Funding

Mechanisms of Chronic Inflammation in PeriodontitisZIADE000736 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI MOUTSOPOULOS, NIKI · 2010 to 2025
$14.1M
Normal And Pathologic Mechanisms Of Inflammation, Innate And Acquired ImmunityZIADE000046 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI WAHL, SHARON M · 2009 to 2012
$5.4M
Role Of Monocytes In AIDS And As Targets For Antiviral TherapyZIADE000513 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI WAHL, SHARON M · 2009 to 2012
$2.9M
Intramural NIH HHS
6 · The paper itself

Abstract

Differential expression of secretory leukocyte protease inhibitor (SLPI) impacts on tumor progression. SLPI directly inhibits elastase and other serine proteases, and regulates matrix metalloproteinases, plasminogen activation, and plasmin downstream targets to influence invasion. We examined tissues from human oral squamous cell carcinoma (OSCC) for SLPI expression in parallel with proteases associated with tumor progression and evaluated their relationships using tumor cell lines. Significantly decreased SLPI was detected in OSCC compared to normal oral epithelium. Furthermore, an inverse correlation between SLPI and histological parameters associated with tumor progression, including stage of invasion, pattern of invasion, invasive cell grade, and composite histological tumor score was evident. Conversely, elevated plasmin and elastase were positively correlated with histological parameters of tumor invasion. In addition to its known inhibition of elastase, we identify SLPI as a novel inhibitor of plasminogen activation through its interaction with annexin A2 with concomitant reduced plasmin generation by macrophages and OSCC cell lines. In an in vitro assay measuring invasive activity, SLPI blocked protease-dependent tumor cell migration. Our data suggest that SLPI may possess antitumorigenic activity by virtue of its ability to interfere with multiple requisite proteolytic steps underlying tumor cell invasion and may provide insight into potential stratification of oral cancer according to risk of occult metastasis, guiding treatment strategies.

Indexed as

AgedAged, 80 and overAnnexin A2Carcinoma, Squamous CellCell Line, TumorCell MovementEpitheliumFibrinolysinGene Expression Regulation, NeoplasticHumansMacrophagesMatrix Metalloproteinase InhibitorsMatrix MetalloproteinasesMiddle AgedMouth NeoplasmsNeoplasm InvasivenessAnnexin A2FibrinolysinMatrix Metalloproteinase InhibitorsMatrix MetalloproteinasesPancreatic ElastasePlasminogenSecretory Leukocyte Peptidase InhibitorSLPI protein, human

Identifiers

PMID21641406
PMCPMC3124294
OpenAlexW2128628759

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.