机构:[1]Department of Neurosurgery, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, People’s Republic of China[2]Medprin Biotech GmbH, Gutleutstraβe 163-167, Frankfurt am Main, D-60327, Germany[3]Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, 100084, People’s Republic of China[4]Department of Precision Medicine and Healthcare, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, People’s Republic of China
Glioma is still difficult to treat because of its high malignancy, high recurrence rate, and high resistance to anticancer drugs. An alternative method for research of gliomagenesis and drug resistance is to use in vitro tumor model that closely mimics the in vivo tumor microenvironment. In this study, we established a 3D bioprinted glioma stem cell model, using modified porous gelatin/alginate/ fibrinogen hydrogel that mimics the extracellular matrix. Glioma stem cells achieved a survival rate of 86.92%, and proliferated with high cellular activity immediately following bioprinting. During the in vitro culture period, the printed glioma stem cells not only maintained their inherent characteristics of cancer stem cells (Nestin), but also showed differentiation potential (glial fibrillary acidic protein and beta-tubulin III). In order to verify the vascularization potential of glioma stem cells, tumor angiogenesis biomarker, vascular endothelial growth factor was detected by immunohistochemistry, and its expression increased from week one to three during the culture period. Drug-sensitivity results showed that 3D printed tumor model was more resistant to temozolomide than 2D monolayer model at TMZ concentrations of 400-1600 mu g ml(-1). In summary, 3D bioprinted glioma model provides a novel alternative tool for studying gliomagenesis, glioma stem cell biology, drug resistance, and anticancer drug susceptibility in vitro.
基金:
This study was financially supported by the following
programs: 1. Program of Medical Innovation Team
and Leading Talent of Jiangsu Province, China (No.
LJ201150), 2. Science and Technology Plan Projects of
Jiangsu Province, China (No. BL2012048), 3. The
National High Technology Research and Development
Program of China (863 Program, No.
2015AA020303), 4. Guangdong Innovative Research
Team Program, China (No. 2011S055), 5. China
Shenzhen Peacock Plan Project (No. KQTD201209).
6. Clinical cutting-edge technology, social development
projects in Jiangsu Province (BE2016668).
第一作者机构:[1]Department of Neurosurgery, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, People’s Republic of China
通讯作者:
通讯机构:[1]Department of Neurosurgery, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, People’s Republic of China[3]Department of Mechanical Engineering, Biomanufacturing Center, Tsinghua University, Beijing, 100084, People’s Republic of China[4]Department of Precision Medicine and Healthcare, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, People’s Republic of China
推荐引用方式(GB/T 7714):
Xingliang Dai,ChengMa,Qing Lan,et al.3D bioprinted glioma stem cells for brain tumor model and applications of drug susceptibility[J].BIOFABRICATION.2016,8(4):045005.doi:10.1088/1758-5090/8/4/045005.
APA:
Xingliang Dai,ChengMa,Qing Lan&Tao Xu.(2016).3D bioprinted glioma stem cells for brain tumor model and applications of drug susceptibility.BIOFABRICATION,8,(4)
MLA:
Xingliang Dai,et al."3D bioprinted glioma stem cells for brain tumor model and applications of drug susceptibility".BIOFABRICATION 8..4(2016):045005