A hypothesis and theoretical model speculating the possible role of therapy mediated neoplastic cell loss in promoting the process of glioblastoma relapse

Journal of Theoretical Biology
Mrinmay Kumar Mallik

Abstract

Tumor recurrence is considered to be one of the biggest culprits, behind the poor prognosis of glioblastomas. Using published facts on primary glioblastomas, with special reference to cancer stem cells and their recently described heterogeneity, a hypothesis is being proposed that speculates the possible role of therapy mediated neoplastic cell loss in promoting the process of relapse in these tumors. The mechanisms by which such a phenomenon could be functional has been integrated into a double version theoretical model, which envisages glioblastomas as neoplasms comprising of multiple, differentially regulated and dynamically distinct neoplastic compartments (named as active and back-up compartments in this article) supported by their own complement of cancer stem cells, wherein therapy mediated cell loss, which mainly affects the size of the active compartment, results in abrogating the inhibitory effect of the active compartment on the back-up compartment, thereby leading to the activation of the back-up compartment. This activation contributes towards tumor recurrence. The possibility of the existence of such a phenomenon could have strong implications on management and prognosis of these tumors. This article aims to provo...Continue Reading

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