Scalable Culturing of Primary Human Glioblastoma Tumor-Initiating Cells with a Cell-Friendly Culture System

Qiang Li(University of Nebraska–Lincoln), Haishuang Lin(University of Nebraska–Lincoln), Jack Rauch(University of Nebraska–Lincoln), Loic P. Deleyrolle(University of Florida), Brent A. Reynolds(University of Florida), Hendrik J. Viljoen(University of Nebraska–Lincoln), Chi Zhang(University of Nebraska–Lincoln), Chi Zhang(University of Nebraska–Lincoln), Linxia Gu(University of Nebraska–Lincoln), Erika Van Wyk, Yuguo Lei(University of Nebraska–Lincoln)
Scientific Reports
February 19, 2018
10.1038/s41598-018-21927-4
Cited by 42Open Access
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Abstract

Abstract Glioblastoma is the most aggressive and deadly brain cancer. There is growing interest to develop drugs that specifically target to glioblastoma tumor-initiating cells (TICs). However, the cost-effective production of large numbers of high quality glioblastoma TICs for drug discovery with current cell culturing technologies remains very challenging. Here, we report a new method that cultures glioblastoma TICs in microscale alginate hydrogel tubes (or AlgTubes). The AlgTubes allowed long-term culturing (~50 days, 10 passages) of glioblastoma TICs with high growth rate (~700-fold expansion/14 days), high cell viability and high volumetric yield (~3.0 × 10 8 cells/mL) without losing the stem cell properties, all offered large advancements over current culturing methods. This method can be applied for the scalable production of glioblastoma TICs at affordable cost for drug discovery.

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