Evidence map›Paper›PMID 23038613›Full record

ArticleThe Prostate2013

Positive correlation between PEDF expression levels and macrophage density in the human prostate.

Thomas Nelius, Christina Samathanam, Dalia Martinez-Marin, Natalie Gaines, Jessica Stevens, Johnny Hickson, Werner de Riese, Stéphanie Filleur

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.6field-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

20 citing papers in PubMed, 27 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Thomas NeliusDepartment of Urology, Texas Tech University Health Sciences Center, Lubbock, Texas 79430-6591, USA.
Christina Samathanam
Dalia Martinez-Marin
Natalie Gaines
Jessica Stevens
Johnny Hickson
Werner de Riese
Stéphanie Filleur
Texas Tech University Health Sciences Center · USTexas Tech University · USThe University of Texas Health Science Center at Houston · US

Funding

Modulation of Pigment Epithelium-Derived Factor's activities as potential therapeR15CA161634 · NCI · TEXAS TECH UNIVERSITY HEALTH SCIS CENTER · PI FILLEUR, STEPHANIE, NELIUS, THOMAS · 2012 to 2014
$545k
NCI NIH HHS R15 CA161634
6 · The paper itself

Abstract

backgroundIn this study, we investigated the capacity of pigment epithelium-derived factor (PEDF) to modulate the recruitment and the differentiation of monocytes/macrophages both in vitro and in human prostate.

methodsUsing Boyden chambers, we assessed PEDF effect on the migration of monocytes and chemically activated RAW 264.7 macrophages. Normal, prostatitis, and prostate cancer specimens were retrospectively selected and examined by immunohistochemistry for PEDF expression and infiltration of immune CD68 + macrophagic cells. PEDF expression and macrophage density were then correlated with each other and clinicopathological parameters. M1 and M2 differentiation markers were quantified by qRT-PCR, Western blotting, and ELISA.

resultsIn chemotaxis, PEDF induced the migration of monocytes/macrophages. In immunohistochemistry, macrophages were markedly increased in prostatitis and malignant compared to normal tissues. PEDF was expressed at variable levels in the stroma and epithelium. PEDF mRNA was down-regulated in both prostate cancer and prostatitis compared to normal tissues. In correlation studies, macrophage density and PEDF expression were respectively positively and negatively associated with prostate size. Most importantly, PEDF expression positively correlated with macrophage density. Finally, PEDF stimulated the expression of iNOS, IL12, and TNFα; and inhibited IL10 and arginase 1 in mouse and human macrophages confirming a M1-type differentiation.

conclusionsOur data demonstrate that PEDF acts directly on monocytes/macrophages by inducing their migration and differentiation into M1-type cells. These findings suggest a possible role of macrophages in PEDF anti-tumor properties and may support further development of PEDF-based anti-cancer therapy.

Indexed as

AnimalsAntigens, CDAntigens, Differentiation, MyelomonocyticCD68 MoleculeCell DifferentiationCell LineCell MovementEye ProteinsGene Expression Regulation, NeoplasticHumansLiverMacrophagesMaleMiceMonocytesNeoplasm GradingAntigens, CDAntigens, Differentiation, MyelomonocyticCD68 antigen, humanCD68 MoleculeEye ProteinsNerve Growth FactorsPigment Epithelium-Derived FactorRNA, MessengerSerpins

Identifiers

PMID23038613
PMCPMC3600115
OpenAlexW2091385832

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.