Evidence map›Paper›PMID 25995618›Full record

ArticleDrug design, development and therapy2015

The mechanism of CCN1-enhanced retinal neovascularization in oxygen-induced retinopathy through PI3K/Akt-VEGF signaling pathway.

Yu Di, Yiou Zhang, Hongwei Yang, Aiyuan Wang, Xiaolong Chen

Open access · goldAbstract read
In one paragraph

Article in Drug design, development and therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

18 citing papers in PubMed, 20 citations in OpenAlex.

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  8. LncRNAFrontiers in medicine · 2022
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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

5 authors at 1 institution in 1 country.

Yu DiDepartment of Ophthalmology, Shengjing Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
Yiou ZhangGraduate School, China Medical University, Shenyang, People's Republic of China.
Hongwei YangDepartment of Ophthalmology, Shengjing Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
Aiyuan WangDepartment of Ophthalmology, Shengjing Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
Xiaolong ChenDepartment of Ophthalmology, Shengjing Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCCN1 (also called Cyr 61) is an extracellular matrix signaling molecule that has been implicated in neovascularization through its interactions with several endothelial integrin receptors. The roles of vascular endothelial growth factor (VEGF) in angiogenesis are well described. The aim of this study was to investigate the signal transduction mechanism of CCN1-PI3K/Akt-VEGF in retinopathy of prematurity (ROP), and the effects of CCN1 knockdown on ROP.

methodsThe oxygen-induced retinopathy (OIR) model was established in C57BL/6J mice exposed to a high concentration of oxygen. Retinas were obtained from the normoxia, OIR, OIR control (treated with scramble siRNA) and OIR treated (with CCN1 siRNA) groups. Retinal neovascularization (RNV) was qualitatively analyzed with ADPase staining and quantitatively analyzed by counting neovascular endothelial cell nuclei at postnatal day 17 when RNV reached a peak. mRNA level and protein expression of CCN1, p-Akt, and VEGF were measured by real-time PCR and Western blotting, and located with immunohistochemistry.

resultsCCN1 depletion resulted in less neovascularization clock hour scores in the number of preretinal neovascular cells compared with the OIR treated group (1.28±0.83 versus 4.80±0.82; and 7.12±2.50 versus 23.25±2.35, respectively, both P<0.05). Furthermore, CCN1, p-Akt and VEGF mRNA, and protein were significantly expressed in the retina of the OIR and OIR control groups. Intravitreal injection of CCN1 siRNA significantly reduced PI3K/Akt-VEGF pathway expression of the OIR mouse model (all P<0.05). CCN1 siRNA significantly enhanced the avascular area and avascular diameter of OIR model (P<0.05). CCN1 siRNA decreased the levels of IL-1β, IL-6, and TNF-α significantly compared to the OIR group (P<0.05).

conclusionThese results suggest that CCN1 plays an important role in RNV via the PI3K/Akt-VEGF signaling pathway. CCN1 may be a potential target for the prevention and treatment of ROP.

Indexed as

AnimalsAnimals, NewbornApyraseCysteine-Rich Protein 61CytokinesEndothelial CellsFemaleGene Knockdown TechniquesMaleMiceMice, Inbred C57BLOncogene Protein v-aktOxygenPhosphatidylinositol 3-KinasesRetinal NeovascularizationRetinopathy of PrematurityApyraseCCN1 protein, mouseCysteine-Rich Protein 61CytokinesOncogene Protein v-aktOxygenPhosphatidylinositol 3-KinasesRNA, Small InterferingVascular Endothelial Growth Factor Acysteine-rich 61retinal neovascularizationretinopathy of prematurityvascular endothelial growth factor

Identifiers

PMID25995618
PMCPMC4425238
OpenAlexW1950364202

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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.