Stochastic Tunneling of Two Mutations in a Population of Cancer Cells.
Stochastic Tunneling of Two Mutations in a Population of Cancer Cells.
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DOI:
10.1371/journal.pone.0065724
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Michor F
中科院分区:
文献类型:
--
作者:
Haeno H;Maruvka YE;Iwasa Y;Michor F
Cancer initiation, progression, and the emergence of drug resistance are driven by specific genetic and/or epigenetic alterations such as point mutations, structural alterations, DNA methylation and histone modification changes. These alterations may confer advantageous, deleterious or neutral effects to mutated cells. Previous studies showed that cells harboring two particular alterations may arise in a fixed-size population even in the absence of an intermediate state in which cells harboring only the first alteration take over the population; this phenomenon is called stochastic tunneling. Here, we investigated a stochastic Moran model in which two alterations emerge in a cell population of fixed size. We developed a novel approach to comprehensively describe the evolutionary dynamics of stochastic tunneling of two mutations. We considered the scenarios of large mutation rates and various fitness values and validated the accuracy of the mathematical predictions with exact stochastic computer simulations. Our theory is applicable to situations in which two alterations are accumulated in a fixed-size population of binary dividing cells.
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影响因子:
3.7
作者:
Iwasa Y;Michor F
通讯作者:
Michor F
DOI:
10.1007/978-0-387-78168-6_1
发表时间:
2008-01-01
期刊:
PROBABILITY MODELS FOR DNA SEQUENCE EVOLUTION, SECOND EDITION
影响因子:
--
作者:
Durrett, Richard
通讯作者:
Durrett, Richard
影响因子:
2
作者:
Komarova, NL;Sengupta, A;Nowak, MA
通讯作者:
Nowak, MA
影响因子:
1.4
作者:
Lehmann, Laurent;Rousset, Francois
通讯作者:
Rousset, Francois
影响因子:
64.8
作者:
FISHER, JC
通讯作者:
FISHER, JC