Evidence map›Paper›PMID 21859498›Full record

ArticleJournal of biomedical science2011

BMP-2 gene-fibronectin-apatite composite layer enhances bone formation.

Wei Zhang, Hideo Tsurushima, Ayako Oyane, Yushin Yazaki, Yu Sogo, Atsuo Ito, Akira Matsumura

Open access · diamondAbstract read
In one paragraph

Article in Journal of biomedical science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.4field-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

12 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. When 1+1>2: Nanostructured composites for hard tissue engineering applications.Materials science & engineering. C, Materials for biological applications · 2015
    Review
  6. Article
  7. Review
  8. Mesenchymal stem cells overexpressing Ihh promote bone repair.Journal of orthopaedic surgery and research · 2014
    Article
  9. Article
  10. Article
  11. Article
  12. 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

7 authors at 3 institutions in 2 countries.

Wei ZhangNanosystem Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST), Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan.
Hideo Tsurushima
Ayako Oyane
Yushin Yazaki
Yu Sogo
Atsuo Ito
Akira Matsumura
National Institute of Advanced Industrial Science and Technology · JPUniversity of Tsukuba · JPChinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSafe and efficient gene transfer systems are needed for tissue engineering. We have developed an apatite composite layer including the bone morphogenetic protein-2 (BMP-2) gene and fibronectin (FB), and we evaluated its ability to induce bone formation.

methodsAn apatite composite layer was evaluated to determine the efficiency of gene transfer to cells cultured on it. Cells were cultured on a composite layer including the BMP-2 gene and FB, and BMP-2 gene expression, BMP-2 protein concentrations, alkaline phosphatase (ALP) activity, and osteocalcin (OC) concentrations were measured. A bone defect on the cranium of rats was treated with hydroxyapatite (HAP)-coated ceramic buttons with the apatite composite layer including the BMP-2 gene and FB (HAP-BMP-FB). The tissue concentration of BMP-2, bone formation, and the expression levels of the BMP-2, ALP, and OC genes were all quantified.

resultsThe apatite composite layer provided more efficient gene transfer for the cultured cells than an apatite composite layer without FB. The BMP-2 concentration was approximately 100-600 pg/mL in the cell-culture medium. Culturing the cells on the apatite composite layer for 27 days increased ALP activity and OC concentrations. In animal experiments, the tissue concentrations of BMP-2 were over 100 pg/mg in the HAP-BMP-FB group and approximately 50 pg/mg in the control groups. Eight weeks later, bone formation was more enhanced in the HAP-BMP-FB group than in the control groups. In the tissues surrounding the HAP button, the gene expression levels of ALP and OC increased.

conclusionThe BMP-2 gene-FB-apatite composite layer might be useful for bone engineering.

Indexed as

Gene Transfer TechniquesAdaptor Proteins, Signal TransducingAlkaline PhosphataseAnimalsBone Morphogenetic Protein 2Calcium PhosphatesCells, CulturedDNA PrimersDurapatiteEnzyme-Linked Immunosorbent AssayFibronectinsHeLa CellsHumansMembrane ProteinsMiceMicroscopy, Electron, ScanningAdaptor Proteins, Signal TransducingAlkaline PhosphataseAtrnl1 protein, mouseBone Morphogenetic Protein 2calcium phosphateCalcium PhosphatesDNA PrimersDurapatiteFibronectinsMembrane ProteinsOsteocalcin

Identifiers

PMID21859498
PMCPMC3175450
OpenAlexW2085676611

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.