Evidence map›Paper›PMID 19223494›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2009

Short pigment epithelial-derived factor-derived peptide inhibits angiogenesis and tumor growth.

Yelena Mirochnik, Arin Aurora, Frank T Schulze-Hoepfner, Ahmed Deabes, Victor Shifrin, Richard Beckmann, Charles Polsky, Olga V Volpert

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

43 citing papers in PubMed, 75 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 2 countries.

Yelena MirochnikUrology Department, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Arin Aurora
Frank T Schulze-Hoepfner
Ahmed Deabes
Victor Shifrin
Richard Beckmann
Charles Polsky
Olga V Volpert
Northwestern University · USGoethe University Frankfurt · DEThe University of Texas Southwestern Medical Center · US

Funding

Regulation of angiogenic balance by thrombospondin-1.R01HL068033 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI VOLPERT, OLGA VALERY · 2001 to 2009
$2.6M
Maximization of anti-angiogenesis by thrombospondin-1R01HL077471 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI VOLPERT, OLGA VALERY · 2005 to 2008
$1.1M
NHLBI NIH HHS R01 HL068033NHLBI NIH HHS R01 HL077471
6 · The paper itself

Abstract

purposePigment epithelial-derived factor (PEDF) is a potent angiogenesis inhibitor with multiple other functions, some of which enhance tumor growth. Our previous studies mapped PEDF antiangiogenic and prosurvival activities to distinct epitopes. This study was aimed to determine the minimal fragment of PEDF, which maintains antiangiogenic and antitumor efficacy. EXPERIMENTAL

designWe analyzed antigenicity, hydrophilicity, and charge distribution of the angioinhibitory epitope (the 34-mer) and designed three peptides covering its COOH terminus, P14, P18, and P23. We analyzed their ability to block endothelial cell chemotaxis and induce apoptosis in vitro and their antiangiogenic activity in vivo. The selected peptide was tested for the antitumor activity against mildly aggressive xenografted prostate carcinoma and highly aggressive renal cell carcinoma. To verify that P18 acts in the same manner as PEDF, we used immunohistochemistry to measure PEDF targets, vascular endothelial growth factor receptor 2, and CD95 ligand expression in P18-treated vasculature.

resultsP14 and P18 blocked endothelial cell chemotaxis; P18 and P23 induced apoptosis. P18 showed the highest IC50 and blocked angiogenesis in vivo: P23 was inactive and P14 was proangiogenic. P18 increased the production of CD95 ligand and reduced the expression of vascular endothelial growth factor receptor 2 by the endothelial cells in vivo. In tumor studies, P18 was more effective in blocking the angiogenesis and growth of the prostate cancer than parental 34-mer; in the renal cell carcinoma, P18 strongly decreased angiogenesis and halted the progression of established tumors.

conclusionsP18 is a novel and potent antiangiogenic biotherapeutic agent that has potential to be developed for the treatment of prostate and renal cancer.

Indexed as

Amino Acid SequenceAngiogenesis InhibitorsAnimalsApoptosisCarcinoma, Renal CellCells, CulturedChemotaxisCorneal NeovascularizationEndothelium, VascularEye ProteinsFemaleHumansImmunoenzyme TechniquesKidney NeoplasmsMaleMiceAngiogenesis InhibitorsEye ProteinsNerve Growth FactorsPeptide FragmentsPigment Epithelium-Derived FactorSerpins

Identifiers

PMID19223494
PMCPMC2854536
OpenAlexW2100958924

What OpenQuestion holds

Textmetadata
LicenceTDM
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.