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Engineered silk fibroin protein 3D matrices for in vitro tumor model

Talukdar, Sarmistha, Mandal, Mahitosh, Hutmacher, Dietmar W., Russell, Pamela J., Soekmadji, Carolina, & Kundu, Subhas C. (2011) Engineered silk fibroin protein 3D matrices for in vitro tumor model. Biomaterials, 32, pp. 2149-2159.

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Abstract

3D in vitro model systems that are able to mimic the in vivo microenvironment are now highly sought after in cancer research. Antheraea mylitta silk fibroin protein matrices were investigated as potential biomaterial for in vitro tumor modeling. We compared the characteristics of MDA-MB-231 cells on A. mylitta, Bombyx mori silk matrices, Matrigel, and tissue culture plates. The attachment and morphology of the MDA-MB-231 cell line on A. mylitta silk matrices was found to be better than on B. mori matrices and comparable to Matrigel and tissue culture plates. The cells grown in all 3D cultures showed more MMP-9 activity, indicating a more invasive potential. In comparison to B. mori fibroin, A. mylitta fibroin not only provided better cell adhesion, but also improved cell viability and proliferation. Yield coefficient of glucose consumed to lactate produced by cells on 3D A. mylitta fibroin was found to be similar to that of cancer cells in vivo. LNCaP prostate cancer cells were also cultured on 3D A. mylitta fibroin and they grew as clumps in long term culture. The results indicate that A. mylitta fibroin scaffold can provide an easily manipulated microenvironment system to investigate individual factors such as growth factors and signaling peptides, as well as evaluation of anticancer drugs.

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28 citations in Scopus
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23 citations in Web of Science®

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ID Code: 40159
Item Type: Journal Article
Keywords: Silk, Fibroin, 3D, Cell culture, Tumour
DOI: 10.1016/j.biomaterials.2010.11.052
ISSN: 0142-9612
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomaterials (090301)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Institutes > Institute of Health and Biomedical Innovation
Deposited On: 17 Feb 2011 10:07
Last Modified: 01 Mar 2012 00:28

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