In vivo shRNA screening strategy.

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Volume 60, Issue 2, Pages (August 2011)

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Volume 60, Issue 2, Pages (August 2011)

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In vivo shRNA screening strategy. In vivo shRNA screening strategy. A, schematic of high-throughput screening (HTS). B, 4T1-Luc cells infected with control shRNAs (Luc+, GFP+) were mixed with uninfected 4T1-Luc cells (Luc+, GFP−) at the indicated ratios. A total of 0.5 × 106 cells were injected into the tail veins of BALB/c mice (3 mice/group). On day 21, animals were IVIS imaged in vivo and the lungs were removed at necroscopy. The IVIS imaging (left) and bright field imaging of the lungs (middle) shows equivalent tumor burden in all animals. Right, GFP+ lung metastases (arrowheads). C, table showing the screen hits. As described in Methods, the log ratio (Z score) of tumor to preinoculation 4T1-Luc cells was calculated individually for mouse A, B, and C. Shown in red are Z scores >2, shown in bold are hits that were taken forward for in vivo validation. Nirupa Murugaesu et al. Cancer Discovery 2014;4:304-317 ©2014 by American Association for Cancer Research