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- Ivana Bozic, Tibor Antal, +7 authors Martin A Nowak
- Proceedings of the National Academy of Sciences…
- 2010

Major efforts to sequence cancer genomes are now occurring throughout the world. Though the emerging data from these studies are illuminating, their reconciliation with epidemiologic and clinical observations poses a major challenge. In the current study, we provide a mathematical model that begins to address this challenge. We model tumors as a discrete… (More)

- Niko Beerenwinkel, Tibor Antal, +5 authors Martin A. Nowak
- PLoS Computational Biology
- 2007

Cancer results from genetic alterations that disturb the normal cooperative behavior of cells. Recent high-throughput genomic studies of cancer cells have shown that the mutational landscape of cancer is complex and that individual cancers may evolve through mutations in as many as 20 different cancer-associated genes. We use data published by Sjöblom et… (More)

- Corina E Tarnita, Hisashi Ohtsuki, Tibor Antal, Feng Fu, Martin A Nowak
- Journal of theoretical biology
- 2009

Evolutionary game theory studies frequency dependent selection. The fitness of a strategy is not constant, but depends on the relative frequencies of strategies in the population. This type of evolutionary dynamics occurs in many settings of ecology, infectious disease dynamics, animal behavior and social interactions of humans. Traditionally evolutionary… (More)

- Tibor Antal, Hisashi Ohtsuki, John Wakeley, Peter D Taylor, Martin A Nowak
- Proceedings of the National Academy of Sciences…
- 2009

The emergence of cooperation in populations of selfish individuals is a fascinating topic that has inspired much work in theoretical biology. Here, we study the evolution of cooperation in a model where individuals are characterized by phenotypic properties that are visible to others. The population is well mixed in the sense that everyone is equally likely… (More)

- Martin A. Nowak, Corina E. Tarnita, Tibor Antal
- Philosophical transactions of the Royal Society…
- 2010

Evolutionary dynamics shape the living world around us. At the centre of every evolutionary process is a population of reproducing individuals. The structure of that population affects evolutionary dynamics. The individuals can be molecules, cells, viruses, multicellular organisms or humans. Whenever the fitness of individuals depends on the relative… (More)

- Tibor Antal, István Scheuring
- Bulletin of mathematical biology
- 2006

A stochastic evolutionary dynamics of two strategies given by 2x 2 matrix games is studied in finite populations. We focus on stochastic properties of fixation: how a strategy represented by a single individual wins over the entire population. The process is discussed in the framework of a random walk with site dependent hopping rates. The time of fixation… (More)

The evolution of two species with different fitness is investigated on degree-heterogeneous graphs. The population evolves either by one individual dying and being replaced by the offspring of a random neighbor (voter model dynamics) or by an individual giving birth to an offspring that takes over a random neighbor node (invasion process dynamics). The… (More)

- V Sood, Tibor Antal, S Redner
- Physical review. E, Statistical, nonlinear, and…
- 2008

We study simple interacting particle systems on heterogeneous networks, including the voter model and the invasion process. These are both two-state models in which in an update event an individual changes state to agree with a neighbor. For the voter model, an individual "imports" its state from a randomly chosen neighbor. Here the average time TN to reach… (More)

- Shinichi Yachida, Siân Jones, +11 authors Christine A. Iacobuzio-Donahue
- Nature
- 2010

Metastasis, the dissemination and growth of neoplastic cells in an organ distinct from that in which they originated, is the most common cause of death in cancer patients. This is particularly true for pancreatic cancers, where most patients are diagnosed with metastatic disease and few show a sustained response to chemotherapy or radiation therapy. Whether… (More)

- Siân Jones, Wei-Dong Chen, +11 authors Sanford D Markowitz
- Proceedings of the National Academy of Sciences…
- 2008

We show that the times separating the birth of benign, invasive, and metastatic tumor cells can be determined by analysis of the mutations they have in common. When combined with prior clinical observations, these analyses suggest the following general conclusions about colorectal tumorigenesis: (i) It takes approximately 17 years for a large benign tumor… (More)