NDLI: Three-dimensional culture of human meniscal cells: Extracellular matrix and proteoglycan production

Content Provider	Springer Nature : BioMed Central
Author	Gruber, Helen E Mauerhan, David Chow, Yin Ingram, Jane A Norton, H James Hanley, Edward N Sun, Yubo
Abstract	Background The meniscus is a complex tissue whose cell biology has only recently begun to be explored. Published models rely upon initial culture in the presence of added growth factors. The aim of this study was to test a three-dimensional (3D) collagen sponge microenvironment (without added growth factors) for its ability to provide a microenvironment supportive for meniscal cell extracellular matrix (ECM) production, and to test the responsiveness of cells cultured in this manner to transforming growth factor-β (TGF-β). Methods Experimental studies were approved prospectively by the authors' Human Subjects Institutional Review Board. Human meniscal cells were isolated from surgical specimens, established in monolayer culture, seeded into a 3D scaffold, and cell morphology and extracellular matrix components (ECM) evaluated either under control condition or with addition of TGF-β. Outcome variables were evaluation of cultured cell morphology, quantitative measurement of total sulfated proteoglycan production, and immunohistochemical study of the ECM components chondroitin sulfate, keratan sulfate, and types I and II collagen. Result and Conclusion Meniscal cells attached well within the 3D microenvironment and expanded with culture time. The 3D microenvironment was permissive for production of chondroitin sulfate, types I and II collagen, and to a lesser degree keratan sulfate. This microenvironment was also permissive for growth factor responsiveness, as indicated by a significant increase in proteoglycan production when cells were exposed to TGF-β (2.48 μg/ml ± 1.00, mean ± S.D., vs control levels of 1.58 ± 0.79, p < 0.0001). Knowledge of how culture microenvironments influence meniscal cell ECM production is important; the collagen sponge culture methodology provides a useful in vitro tool for study of meniscal cell biology.
Related Links	https://bmcbiotechnol.biomedcentral.com/counter/pdf/10.1186/1472-6750-8-54.pdf
Ending Page	7
Page Count	7
Starting Page	1
File Format	HTM / HTML
ISSN	14726750
DOI	10.1186/1472-6750-8-54
Journal	BMC Biotechnology
Issue Number	1
Volume Number	8
Language	English
Publisher	BioMed Central
Publisher Date	2008-06-26
Access Restriction	Open
Subject Keyword	Applied Microbiology Biotechnology Biochemical Engineering Genetic Engineering Plant Breeding Biomedical Engineering Sponge Chondroitin Sulfate Keratan Sulfate Collagen Sponge Meniscal Cell Plant Breeding/Biotechnology Biomedical Engineering/Biotechnology
Content Type	Text
Resource Type	Article
Subject	Biotechnology
Journal Impact Factor	3.5/2023
5-Year Journal Impact Factor	3.2/2023

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