%0 Journal Article %1 Reinartz:2017:Clin-Cancer-Res:27521447 %A Reinartz, R %A Wang, S %A Kebir, S %A Silver, D J %A Wieland, A %A Zheng, T %A Küpper, M %A Rauschenbach, L %A Fimmers, R %A Shepherd, T M %A Trageser, D %A Till, A %A Schäfer, N %A Glas, M %A Hillmer, A M %A Cichon, S %A Smith, A A %A Pietsch, T %A Liu, Y %A Reynolds, B A %A Yachnis, A %A Pincus, D W %A Simon, M %A Brüstle, O %A Steindler, D A %A Scheffler, B %D 2017 %J Clin Cancer Res %K cancer-research glioblastoma martin_glas %N 2 %P 562-574 %R 10.1158/1078-0432.CCR-15-2089 %T Functional Subclone Profiling for Prediction of Treatment-Induced Intratumor Population Shifts and Discovery of Rational Drug Combinations in Human Glioblastoma %U https://www.ncbi.nlm.nih.gov/pubmed/27521447 %V 23 %X Investigation of clonal heterogeneity may be key to understanding mechanisms of therapeutic failure in human cancer. However, little is known on the consequences of therapeutic intervention on the clonal composition of solid tumors.Here, we used 33 single cell-derived subclones generated from five clinical glioblastoma specimens for exploring intra- and interindividual spectra of drug resistance profiles in vitro In a personalized setting, we explored whether differences in pharmacologic sensitivity among subclones could be employed to predict drug-dependent changes to the clonal composition of tumors.Subclones from individual tumors exhibited a remarkable heterogeneity of drug resistance to a library of potential antiglioblastoma compounds. A more comprehensive intratumoral analysis revealed that stable genetic and phenotypic characteristics of coexisting subclones could be correlated with distinct drug sensitivity profiles. The data obtained from differential drug response analysis could be employed to predict clonal population shifts within the na\ï\ve parental tumor in vitro and in orthotopic xenografts. Furthermore, the value of pharmacologic profiles could be shown for establishing rational strategies for individualized secondary lines of treatment.Our data provide a previously unrecognized strategy for revealing functional consequences of intratumor heterogeneity by enabling predictive modeling of treatment-related subclone dynamics in human glioblastoma. Clin Cancer Res; 23(2); 562-74. �2016 AACR.

@article{Reinartz:2017:Clin-Cancer-Res:27521447, abstract = {Investigation of clonal heterogeneity may be key to understanding mechanisms of therapeutic failure in human cancer. However, little is known on the consequences of therapeutic intervention on the clonal composition of solid tumors.Here, we used 33 single cell-derived subclones generated from five clinical glioblastoma specimens for exploring intra- and interindividual spectra of drug resistance profiles in vitro In a personalized setting, we explored whether differences in pharmacologic sensitivity among subclones could be employed to predict drug-dependent changes to the clonal composition of tumors.Subclones from individual tumors exhibited a remarkable heterogeneity of drug resistance to a library of potential antiglioblastoma compounds. A more comprehensive intratumoral analysis revealed that stable genetic and phenotypic characteristics of coexisting subclones could be correlated with distinct drug sensitivity profiles. The data obtained from differential drug response analysis could be employed to predict clonal population shifts within the na\{\"i\}ve parental tumor in vitro and in orthotopic xenografts. Furthermore, the value of pharmacologic profiles could be shown for establishing rational strategies for individualized secondary lines of treatment.Our data provide a previously unrecognized strategy for revealing functional consequences of intratumor heterogeneity by enabling predictive modeling of treatment-related subclone dynamics in human glioblastoma. Clin Cancer Res; 23(2); 562-74. �2016 AACR.}, added-at = {2017-05-26T08:28:18.000+0200}, author = {Reinartz, R and Wang, S and Kebir, S and Silver, D J and Wieland, A and Zheng, T and K{\"u}pper, M and Rauschenbach, L and Fimmers, R and Shepherd, T M and Trageser, D and Till, A and Sch{\"a}fer, N and Glas, M and Hillmer, A M and Cichon, S and Smith, A A and Pietsch, T and Liu, Y and Reynolds, B A and Yachnis, A and Pincus, D W and Simon, M and Br{\"u}stle, O and Steindler, D A and Scheffler, B}, biburl = {https://www.bibsonomy.org/bibtex/25b6a542e4c016d7d2f3bb0b2d8e655ee/marcsaric}, description = {Functional Subclone Profiling for Prediction of Treatment-Induced Intratumor Population Shifts and Discovery of Rational Drug Combinations in Human... - PubMed - NCBI}, doi = {10.1158/1078-0432.CCR-15-2089}, interhash = {69e9afb084e0f9a80d1a55c9aaa75fe5}, intrahash = {5b6a542e4c016d7d2f3bb0b2d8e655ee}, journal = {Clin Cancer Res}, keywords = {cancer-research glioblastoma martin_glas}, month = jan, number = 2, pages = {562-574}, pmid = {27521447}, timestamp = {2017-05-26T08:28:18.000+0200}, title = {Functional Subclone Profiling for Prediction of Treatment-Induced Intratumor Population Shifts and Discovery of Rational Drug Combinations in Human Glioblastoma}, url = {https://www.ncbi.nlm.nih.gov/pubmed/27521447}, volume = 23, year = 2017 }