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Choudhury, Atish

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Choudhury

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Atish

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Choudhury, Atish

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    Whole exome sequencing of circulating tumor cells provides a window into metastatic prostate cancer
    (2014) Lohr, Jens; Adalsteinsson, Viktor A.; Cibulskis, Kristian; Choudhury, Atish; Rosenberg, Mara; Cruz-Gordillo, Peter; Francis, Joshua; Zhang, Cheng-Zhong; Shalek, Alex K.; Satija, Rahul; Trombetta, John T.; Lu, Diana; Tallapragada, Naren; Tahirova, Narmin; Kim, Sora; Blumenstiel, Brendan; Sougnez, Carrie; Lowe, Alarice; Wong, Bang; Auclair, Daniel; Van Allen, Eliezer; Nakabayashi, Mari; Lis, Rosina T.; Lee, Gwo-Shu M.; Li, Tiantian; Chabot, Matthew S.; Ly, Amy; Taplin, Mary-Ellen; Clancy, Thomas; Loda, Massimo; Regev, Aviv; Meyerson, Matthew; Hahn, William; Kantoff, Philip; Golub, Todd; Getz, Gad; Boehm, Jesse S.; Love, J. Christopher
    Comprehensive analyses of cancer genomes promise to inform prognoses and precise cancer treatments. A major barrier, however, is inaccessibility of metastatic tissue. A potential solution is to characterize circulating tumor cells (CTCs), but this requires overcoming the challenges of isolating rare cells and sequencing low-input material. Here we report an integrated process to isolate, qualify and sequence whole exomes of CTCs with high fidelity, using a census-based sequencing strategy. Power calculations suggest that mapping of >99.995% of the standard exome is possible in CTCs. We validated our process in two prostate cancer patients including one for whom we sequenced CTCs, a lymph node metastasis and nine cores of the primary tumor. Fifty-one of 73 CTC mutations (70%) were observed in matched tissue. Moreover, we identified 10 early-trunk and 56 metastatic-trunk mutations in the non-CTC tumor samples and found 90% and 73% of these, respectively, in CTC exomes. This study establishes a foundation for CTC genomics in the clinic.