A simple, low-cost staining method for rapid-throughput analysis of tumor spheroids
Author(s) -
Frank Eckerdt,
Angel A. Alvarez,
Jonathan B. Bell,
Constadina Arvanitis,
Asneha Iqbal,
Ahmet Arslan,
Bo Hu,
Shi-Yuan Cheng,
Stewart Goldman,
Leonidas C. Platanias
Publication year - 2016
Publication title -
biotechniques
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.617
H-Index - 131
eISSN - 1940-9818
pISSN - 0736-6205
DOI - 10.2144/000114372
Subject(s) - spheroid , neurosphere , acridine orange , staining , biology , high throughput screening , cell culture , chemistry , cancer research , bioinformatics , biochemistry , cellular differentiation , genetics , adult stem cell , gene
Tumor spheroids are becoming an important tool for the investigation of cancer stem cell (CSC) function in tumors; thus, low-cost and high-throughput methods for drug screening of tumor spheroids are needed. Using neurospheres as non-adherent three-dimensional (3-D) cultures, we developed a simple, low-cost acridine orange (AO)-based method that allows for rapid analysis of live neurospheres by fluorescence microscopy in a 96-well format. This assay measures the cross-section area of a spheroid, which corresponds to cell viability. Our novel method allows rapid screening of a panel of anti-proliferative drugs to assess inhibitory effects on the growth of cancer stem cells in 3-D cultures.
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