Myogel, a novel, basement membrane-rich, extracellular matrix derived from skeletal muscle, is highly adipogenic in vivo and in vitro

Abberton, K.M., Bortolotto, S.K., Woods, A.A., Findlay, M., Morrison, W.A., Thompson, E.W., & Messina, A. (2008) Myogel, a novel, basement membrane-rich, extracellular matrix derived from skeletal muscle, is highly adipogenic in vivo and in vitro. Cells Tissues Organs, 188(4), pp. 347-358.

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Abstract

Background/Aims

Biological and synthetic scaffolds play important roles in tissue engineering and are being developed towards human clinical applications. Based on previous work from our laboratory, we propose that extracellular matrices from skeletal muscle could be developed for adipose tissue engineering.

Methods

Extracellular matrices (Myogels) extracted from skeletal muscle of various species were assessed using biochemical assays including ELISA and Western blotting. Biofunctionality was assessed using an in vitro differentiation assay and a tissue engineering construct model in the rat.

Results

Myogels were successfully extracted from mice, rats, pigs and humans. Myogels contained significant levels of laminin α4- and α2-subunits and collagen I compared to Matrigel™, which contains laminin 1 (α1β1γ1) and collagen IV. Levels of growth factors such as fibroblast growth factor 2 were significantly higher than Matrigel, vascular endothelial growth factor-A levels were significantly lower and all other growth factors were comparable. Myogels reproducibly stimulated adipogenic differentiation of preadipocytes in vitro and the growth of adipose tissue in the rat.

Conclusions

We found Myogel induces adipocyte differentiation in vitroand shows strong adipogenic potential in vivo, inducing the growth of well-vascularised adipose tissue. Myogel offers an alternative for current support scaffolds in adipose tissue engineering, allowing the scaling up of animal models towards clinical adipose tissue engineering applications.

Impact and interest:

38 citations in Scopus
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36 citations in Web of Science®

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ID Code: 72050
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By (since 1996):22
Export Date: 6 May 2014
Source: Scopus
PubMed ID: 18354248
Additional URLs:
Keywords: Adipogenesis, Basement membrane, Extracellular matrix, Muscle
DOI: 10.1159/000121575
ISSN: 1422-6405
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Deposited On: 23 May 2014 00:01
Last Modified: 06 Jun 2014 03:50

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