Evidence map›Paper›PMID 17126570›Full record

ArticleOsteoarthritis and cartilage2007

Synergistic effect of IGF-1 and OP-1 on matrix formation by normal and OA chondrocytes cultured in alginate beads.

S Chubinskaya, A Hakimiyan, C Pacione, A Yanke, L Rappoport, T Aigner, D C Rueger, R F Loeser

Open access · bronzeAbstract read
In one paragraph

Article in Osteoarthritis and cartilage, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

38 citing papers in PubMed, 88 citations in OpenAlex.

  1. Trial
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  5. Osteocyte Dysfunction in Joint Homeostasis and Osteoarthritis.International journal of molecular sciences · 2021
    Review
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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.

S ChubinskayaDepartment of Biochemistry, Rush University Medical Center, Chicago, IL 60612, USA. schubins@rush.edu
A Hakimiyan
C Pacione
A Yanke
L Rappoport
T Aigner
D C Rueger
R F Loeser
Rush University Medical Center · USLeipzig University · DEStryker (United States) · US

Funding

SPECIALIZED CENTER OF RESEARCH IN OSTEOARTHRITISP50AR039239 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI OEGEMA, THEODORE RICHARD · 1987 to 2007
$8.5M
Aging and IGF-I in CartilageR01AG016697 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI LOESER, RICHARD F · 2001 to 2009
$2.4M
Age-Related Differences in Cartilage OP-1R01AR047654 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI CHUBINSKAYA, SUSAN · 2002 to 2005
$942k
NIAMS NIH HHS AR47654NIAMS NIH HHS P50 AR039239NIAMS NIH HHS R01 AR047654NIA NIH HHS AG16697NIA NIH HHS R01 AG016697
6 · The paper itself

Abstract

objectiveGrowth factor therapy may be useful for stimulation of cartilage matrix synthesis and repair. Thus, the purpose of our study was to further understand the effect of combined insulin-like growth factor-1 (IGF-1) and osteogenic protein-1 (OP-1) treatment on the matrix synthesized by human adult normal and osteoarthritic (OA) chondrocytes.

designChondrocytes were isolated post-mortem from articular cartilage from tali of normal human donors and femoral condyles of OA patients undergoing knee replacement surgery. Cells were cultured in alginate beads for 21 days in four experimental groups: (1) "mini-ITS" control; (2) 100 ng/ml IGF-1; (3) 100 ng/ml OP-1; (4) IGF-1+OP-1, each at 100 ng/ml. Beads were processed for histological (Safranin O and fast green), morphometrical and immunohistochemical (aggrecan, decorin, type I, II, VI, and X collagens, and fibronectin accumulation) analyses.

resultsHistology showed that IGF-1 alone did not induce substantial matrix production. OP-1 alone caused a considerable matrix formation, but the highest matrix accumulation by normal and OA chondrocytes was found when OP-1 and IGF-1 were added together. Morphometrical analysis indicated larger matrices produced by OA chondrocytes than by normal cells under the combined treatment. All tested matrix proteins were more abundant in the combination group. Type X collagen was detected only under the combined OP-1 and IGF-1 treatment and was present at very low levels. Type I collagen was found only in OA chondrocytes.

conclusionsThe results obtained in the current study suggest that combined therapy with IGF-1 and OP-1 may have a greater potential in treating cartilage defects seen in OA than use of either growth factor alone.

Indexed as

OsteoarthritisAlginatesBone Morphogenetic Protein 7Bone Morphogenetic ProteinsCartilage, ArticularCells, CulturedChondrocytesDrug SynergismExtracellular MatrixHumansInsulin-Like Growth Factor Binding ProteinsIntercellular Signaling Peptides and ProteinsTransforming Growth Factor betaAlginatesBMP7 protein, humanBone Morphogenetic Protein 7Bone Morphogenetic ProteinsInsulin-Like Growth Factor Binding ProteinsIntercellular Signaling Peptides and ProteinsTransforming Growth Factor beta

Identifiers

PMID17126570
PMCPMC1894688
OpenAlexW2065824624

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.