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Brain tumor treatment may increase number of cancer stem-like cells

liomas, increased the number of glioma cells with stem-like characteristics. The researchers speculated that because temozolomide is not an ABCG2 substrate, the increase in the SP fraction likely resulted from enrichment of cells with stem-like properties. "In the process of increasing the number of cells in tumors with stem-like properties, temozolomide may render surviving cells even more resistant to subsequent treatment with drugs that are substrates for ABCG2," explains Dr. Holland.