Mathematical modeling of pdgf-driven glioblastoma reveals optimized radiation dosing schedules Journal Article


Authors: Leder, K.; Pitter, K.; Laplant, Q.; Hambardzumyan, D.; Ross, B. D.; Chan, T. A.; Holland, E. C.; Michor, F.
Article Title: Mathematical modeling of pdgf-driven glioblastoma reveals optimized radiation dosing schedules
Abstract: Glioblastomas (GBMs) are the most common and malignant primary brain tumors and are aggressively treated with surgery, chemotherapy, and radiotherapy. Despite this treatment, recurrence is inevitable and survival has improved minimally over the last 50 years. Recent studies have suggested that GBMs exhibit both heterogeneity and instability of differentiation states and varying sensitivities of these states to radiation. Here, we employed an iterative combined theoretical and experimental strategy that takes into account tumor cellular heterogeneity and dynamically acquired radioresistance to predict the effectiveness of different radiation schedules. Using this model, we identified two delivery schedules predicted to significantly improve efficacy by taking advantage of the dynamic instability of radioresistance. These schedules led to superior survival in mice. Our interdisciplinary approach may also be applicable to other human cancer types treated with radiotherapy and, hence, may lay the foundation for significantly increasing the effectiveness of a mainstay of oncologic therapy. PaperClip © 2014 Elsevier Inc.
Journal Title: Cell
Volume: 156
Issue: 3
ISSN: 0092-8674
Publisher: Cell Press  
Date Published: 2014-01-30
Start Page: 603
End Page: 616
Language: English
DOI: 10.1016/j.cell.2013.12.029
PROVIDER: scopus
PMCID: PMC3923371
PUBMED: 24485463
DOI/URL:
Notes: Export Date: 3 March 2014 -- CODEN: CELLB -- Source: Scopus
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  1. Timothy Chan
    317 Chan
  2. Ken L Pitter
    53 Pitter
  3. Quincey LaPlant
    23 LaPlant