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RISS 인기검색어
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- 저자 : Heasley, Lynn E. (검색결과 3 건)
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Ryall, Karen A.,Shin, Jimin,Yoo, Minjae,Hinz, Trista K.,Kim, Jihye,Kang, Jaewoo,Heasley, Lynn E.,Tan, Aik Choon Oxford University Press 2015 Bioinformatics Vol.31 No.23
<P><B>Motivation:</B> Targeted kinase inhibitors have dramatically improved cancer treatment, but kinase dependency for an individual patient or cancer cell can be challenging to predict. Kinase dependency does not always correspond with gene expression and mutation status. High-throughput drug screens are powerful tools for determining kinase dependency, but drug polypharmacology can make results difficult to interpret.</P><P><B>Results:</B> We developed Kinase Addiction Ranker (KAR), an algorithm that integrates high-throughput drug screening data, comprehensive kinase inhibition data and gene expression profiles to identify kinase dependency in cancer cells. We applied KAR to predict kinase dependency of 21 lung cancer cell lines and 151 leukemia patient samples using published datasets. We experimentally validated KAR predictions of FGFR and MTOR dependence in lung cancer cell line H1581, showing synergistic reduction in proliferation after combining ponatinib and AZD8055.</P><P><B>Availability and implementation:</B> KAR can be downloaded as a Python function or a MATLAB script along with example inputs and outputs at: http://tanlab.ucdenver.edu/KAR/.</P><P><B>Contact:</B> aikchoon.tan@ucdenver.edu</P><P><B>Supplementary information:</B> Supplementary data are available at <I>Bioinformatics</I> online.</P>
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Kim, Jihye,Vasu, Vihas T.,Mishra, Rangnath,Singleton, Katherine R.,Yoo, Minjae,Leach, Sonia M.,Farias-Hesson, Eveline,Mason, Robert J.,Kang, Jaewoo,Ramamoorthy, Preveen,Kern, Jeffrey A.,Heasley, Lynn Oxford University Press 2014 Bioinformatics Vol.30 No.17
<P><B>Motivation:</B> Non–small-cell lung cancer (NSCLC) is the leading cause of cancer death in the United States. Targeted tyrosine kinase inhibitors (TKIs) directed against the epidermal growth factor receptor (EGFR) have been widely and successfully used in treating NSCLC patients with activating EGFR mutations. Unfortunately, the duration of response is short-lived, and all patients eventually relapse by acquiring resistance mechanisms.</P><P><B>Result:</B> We performed an integrative systems biology approach to determine essential kinases that drive EGFR-TKI resistance in cancer cell lines. We used a series of bioinformatics methods to analyze and integrate the functional genetics screen and RNA-seq data to identify a set of kinases that are critical in survival and proliferation in these TKI-resistant lines. By connecting the essential kinases to compounds using a novel kinase connectivity map (K-Map), we identified and validated bosutinib as an effective compound that could inhibit proliferation and induce apoptosis in TKI-resistant lines. A rational combination of bosutinib and gefitinib showed additive and synergistic effects in cancer cell lines resistant to EGFR TKI alone.</P><P><B>Conclusions:</B> We have demonstrated a bioinformatics-driven discovery roadmap for drug repurposing and development in overcoming resistance in EGFR-mutant NSCLC, which could be generalized to other cancer types in the era of personalized medicine.</P><P><B>Availability and implementation:</B> K-Map can be accessible at: http://tanlab.ucdenver.edu/kMap.</P><P><B>Contact:</B> aikchoon.tan@ucdenver.edu or finiganj@njhealth.org</P><P><B>Supplementary information:</B> Supplementary data are available at <I>Bioinformatics</I> online.</P>
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