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Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences

JGM

2018

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

High-Resolution Deconstruction Of Evolution Induced By Chemotherapy Treatments In Breast Cancer Xenografts., Hyunsoo Kim, Pooja A Kumar, Francesca Menghi, Javad Noorbakhsh, Eliza Cerveira, Mallory Ryan, Qihui Zhu, Guruprasad Ananda, Joshy George, Henry C Chen, Susan Mockus, Chengsheng Zhang, Yan Yang, James G. Keck, Radha Krishna Murthy Karuturi, Carol J Bult, Charles Lee, Edison Liu, Jeffrey H Chuang Dec 2018

High-Resolution Deconstruction Of Evolution Induced By Chemotherapy Treatments In Breast Cancer Xenografts., Hyunsoo Kim, Pooja A Kumar, Francesca Menghi, Javad Noorbakhsh, Eliza Cerveira, Mallory Ryan, Qihui Zhu, Guruprasad Ananda, Joshy George, Henry C Chen, Susan Mockus, Chengsheng Zhang, Yan Yang, James G. Keck, Radha Krishna Murthy Karuturi, Carol J Bult, Charles Lee, Edison Liu, Jeffrey H Chuang

Faculty Research 2018

The processes by which tumors evolve are essential to the efficacy of treatment, but quantitative understanding of intratumoral dynamics has been limited. Although intratumoral heterogeneity is common, quantification of evolution is difficult from clinical samples because treatment replicates cannot be performed and because matched serial samples are infrequently available. To circumvent these problems we derived and assayed large sets of human triple-negative breast cancer xenografts and cell cultures from two patients, including 86 xenografts from cyclophosphamide, doxorubicin, cisplatin, docetaxel, or vehicle treatment cohorts as well as 45 related cell cultures. We assayed these samples via exome-seq and/or high-resolution droplet digital …


Opposing Tumor-Promoting And -Suppressive Functions Of Rictor/Mtorc2 Signaling In Adult Glioma And Pediatric Shh Medulloblastoma., Seçkin Akgül, Yinghua Li, Siyuan Zheng, Marcel Kool, Daniel M Treisman, Chaoyang Li, Yuan Wang, Susanne Gröbner, Tsuneo Ikenoue, Yiping Shen, Sandra Camelo-Piragua, Gerald Tomasek, Sebastian Stark, Vinay Guduguntla, James F Gusella, Kun-Liang Guan, Stefan M Pfister, Roel G W Verhaak, Yuan Zhu Jul 2018

Opposing Tumor-Promoting And -Suppressive Functions Of Rictor/Mtorc2 Signaling In Adult Glioma And Pediatric Shh Medulloblastoma., Seçkin Akgül, Yinghua Li, Siyuan Zheng, Marcel Kool, Daniel M Treisman, Chaoyang Li, Yuan Wang, Susanne Gröbner, Tsuneo Ikenoue, Yiping Shen, Sandra Camelo-Piragua, Gerald Tomasek, Sebastian Stark, Vinay Guduguntla, James F Gusella, Kun-Liang Guan, Stefan M Pfister, Roel G W Verhaak, Yuan Zhu

Faculty Research 2018

Most human cancers arise from stem and progenitor cells by the sequential accumulation of genetic and epigenetic alterations, while cancer modeling typically requires simultaneous multiple oncogenic events. Here, we show that a single p53 mutation, despite causing no defect in the mouse brain, promoted neural stem and progenitor cells to spontaneously accumulate oncogenic alterations, including loss of multiple chromosomal (chr) regions syntenic to human chr10 containing Pten, forming malignant gliomas with PI3K/Akt activation. Rictor/mTORC2 loss inhibited Akt signaling, greatly delaying and reducing glioma formation by suppressing glioma precursors within the subventricular zone stem cell niche. Rictor/mTORC2 loss delayed timely differentiation …


Thanatomicrobiome Composition Profiling As A Tool For Forensic Investigation., Wei Zhou, Yingnan Bian May 2018

Thanatomicrobiome Composition Profiling As A Tool For Forensic Investigation., Wei Zhou, Yingnan Bian

Faculty Research 2018

Thanatomicrobiome, or the postmortem microbiome, has been recognized as a useful microbial marker of the time and location of host death. In this mini-review, we compare the experimental methods commonly applied to thanatomicrobiome studies to the state-of-the-art methodologies in the microbiome field. Then, we review present findings in thanatomicrobiome studies, focusing on the diversity of the thanatomicrobiome composition and prediction models that have been proposed. Finally, we discuss potential improvements and future directions of the field.