Evidence map›Paper›PMID 24657675›Full record

ArticleActa biomaterialia2014

Effects of hydroxyapatite on endothelial network formation in collagen/fibrin composite hydrogels in vitro and in vivo.

Rameshwar R Rao, Jacob Ceccarelli, Marina L Vigen, Madhu Gudur, Rahul Singh, Cheri X Deng, Andrew J Putnam, Jan P Stegemann

Abstract read
In one paragraph

Article in Acta biomaterialia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.3field-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

21 citing papers in PubMed, 40 citations in OpenAlex.

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  14. Compression-induced structural and mechanical changes of fibrin-collagen composites.Matrix biology : journal of the International Society for Matrix Biology · 2017
    Article
  15. Fibrin mechanical properties and their structural origins.Matrix biology : journal of the International Society for Matrix Biology · 2017
    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 1 institution in 1 country.

Rameshwar R RaoDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Jacob CeccarelliDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Marina L VigenDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Madhu GudurDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Rahul SinghDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Cheri X DengDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Andrew J PutnamDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
Jan P StegemannDepartment of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA. Electronic address: jpsteg@umich.edu.
University of Michigan–Ann Arbor · US

Funding

Tissue Engineering and RegenerationT32DE007057 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI DAVID H. KOHN · 1985 to 2026
$17.3M
Regulation and Enhancement of Angiogenesis in Dense Fibrin MatricesR01HL085339 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PUTNAM, ANDREW J · 2007 to 2024
$5.4M
Preformed vascular modules designed for inosculation with host tissueR01HL118259 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PUTNAM, ANDREW J, STEGEMANN, JAN P. · 2013 to 2016
$1.5M
Modular Assembly of Interdigitated Osteochondral InterfacesR21AR062709 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI STEGEMANN, JAN P. · 2013 to 2014
$343k
NHLBI NIH HHS R01 HL085339NHLBI NIH HHS R01-HL085339NHLBI NIH HHS R01 HL118259NHLBI NIH HHS R01-HL118259NIAMS NIH HHS R21 AR062709NIAMS NIH HHS R21-AR062709NIDCR NIH HHS T32 DE007057
6 · The paper itself

Abstract

Co-culture of endothelial cells (EC) and mesenchymal stem cells (MSC) results in robust vascular network formation in constrained 3-D collagen/fibrin (COL/FIB) composite hydrogels. However, the ability to form endothelial networks is lost when such gels are allowed to compact via cell-mediated remodeling. In this study, we created co-cultures of human EC and human MSC in both constrained and unconstrained COL/FIB matrices and systematically added nanoparticulate hydroxyapatite (HA, 0-20 mg ml(-1)), a bone-like mineral that has been shown to have pro-vasculogenic effects. Constructs cultured for 7 days were assayed for gel compaction, vascular network formation, and mechanical properties. In vitro, robust endothelial network formation was observed in constrained COL/FIB constructs without HA, but this response was significantly inhibited by addition of 5, 10, or 20 mg ml(-1) HA. In unconstrained matrices, network formation was abolished in pure COL/FIB constructs but was rescued by 1.25 or 2.5 mg ml(-1) HA, while higher levels again inhibited vasculogenesis. HA inhibited gel compaction in a dose-dependent manner, which was not correlated to endothelial network formation. HA affected initial stiffness of the gels, but gel remodeling abrogated this effect. Subcutaneous implantation of COL/FIB with 0, 2.5 or 2 0mg ml(-1) HA in the mouse resulted in increased perfusion at the implant site, with no significant differences between materials. Histology at day 7 showed both host and human CD31-stained vasculature infiltrating the implants. These findings are relevant to the design of materials and scaffolds for orthopedic tissue engineering, where both vasculogenesis and formation of a mineral phase are required for regeneration.

Indexed as

CollagenDurapatiteFibrinHydrogelsAnimalsCells, CulturedCoculture TechniquesHumansIn Vitro TechniquesMaleMiceMice, SCIDCollagenDurapatiteFibrinHydrogelsCollagenFibrinHydroxyapatiteIn vivoVasculogenesis

Identifiers

PMID24657675
PMCPMC4041828
OpenAlexW2065125081

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.