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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Chemosensitivity testing in V79 spheroids: drug delivery and cellular microenvironment.

Chinese hamster V79 multicell spheroids growing in tissue culture exhibit many of the same properties as solid tumors outgrowing their blood supply, including the spontaneous development of both noncycling and hypoxic cell populations expected to be resistant to many chemotherapeutic agents. Cell-sorting techniques were used to select cells as a function of their position (depth) within the spheroid to test this prediction. "Sensitivity profiles" of cells from various regions within spheroids after treatment with doxorubicin, bleomycin, 5-fluorouracil, carmustine, cisplatin, chlorambucil, and mitomycin are presented. Additionally, exposure of preseparated cells was used to distinguish inherent sensitivity from environmental or locational factors. For these drugs, penetration was a problem only for doxorubicin; in contrast, the microenvironment in the intact spheroid had a much greater influence on cell sensitivity.[1]

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