Alternative to the soft-agar assay that permits high-throughput drug and genetic screens for cellular transformation

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Abstract
Significance: The paper describes an assay for cellular transformation that involves growth in low attachment (GILA). This assay is comparable to the gold-standard soft-agar assay, but it is much easier to perform and is suitable for high-throughput drug and genetic screens. We describe such screens for drugs and genes that selectively inhibit or increase transformation, but not proliferation. Such molecules are unlikely to be found through conventional drug screening. Lastly, we demonstrate the ability of Food and Drug Administration-approved noncancer drugs to selectively kill ovarian cancer cells derived from patients with chemotherapy-resistant disease, suggesting this approach may provide useful information for personalized cancer treatment.
Funding Information
  • HHS | National Institutes of Health (CA 107486)

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