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Rogojina, Anna; Klesse, Laura J.; Butler, Erin; Kim, Jiwoong; Zhang, He; Xiao, Xue; Guo, Lei; Zhou, Qinbo; Hartshorne, Taylor; Garcia, Dawn; Weldon, Korri; Holland, Trevor; Bandyopadhyay, Abhik; Prado, Luz Perez; Wang, Shidan; Yang, Donghan M.; Langevan, Anne-Marie; Zou, Yi; Grimes, Allison C.; Assanasen, Chatchawin; Gidvani-Diaz, Vinod; Zheng, Siyuan; Lai, Zhao; Chen, Yidong; Xie, Yang; Tomlinson, Gail E.; Skapek, Stephen X.; Kurmasheva, Raushan T.; Houghton, Peter J.; Xu, Lin
iScience, 11/2023, Letnik: 26, Številka: 11Journal Article
Patient-derived xenografts (PDX) remain valuable models for understanding the biology and for developing novel therapeutics. To expand current PDX models of childhood leukemia, we have developed new PDX models from Hispanic patients, a subgroup with a poorer overall outcome. Of 117 primary leukemia samples obtained, successful engraftment and serial passage in mice were achieved in 82 samples (70%). Hispanic patient samples engrafted at a rate (51/73, 70%) that was similar to non-Hispanic patient samples (31/45, 70%). With a new algorithm to remove mouse contamination in multi-omics datasets including methylation data, we found PDX models faithfully reflected somatic mutations, copy-number alterations, RNA expression, gene fusions, whole-genome methylation patterns, and immunophenotypes found in primary tumor (PT) samples in the first 50 reported here. This cohort of characterized PDX childhood leukemias represents a valuable resource in that germline DNA sequencing has allowed the unambiguous determination of somatic mutations in both PT and PDX. Display omitted •Patient-derived xenografts (PDXs) are important preclinical models•50 pediatric leukemia PDXs are largely derived from Hispanic ethnicity•Paired patient tumor, PDX, and germline for sequencing analysis•This cohort uncovers genomic, transcriptomic, and epigenomic features Cancer; Omics; Transcriptomics
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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