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相关论文: Noise-induced first-order transition in anti-tumor…

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We studied the effect of additive and multiplicative noises on the growth of a tumor based on a logistic growth model. The steady-state probability distribution and the average population of the tumor cells were given to explain the…

生物物理 · 物理学 2007-05-23 Wei-Rong Zhong , Yuan-Zhi Shao , Zhen-Hui He

We consider a three-state model comprising tumor cells, effector cells and tumor detecting cells under the influence of noises. It is demonstrated that inevitable stochastic forces existing in all three cell species are able to suppress…

组织与器官 · 定量生物学 2011-07-05 Thomas Bose , Steffen Trimper

We study a stochastic model for tumor cell growth with both multiplicative and additive colored noise as well as a non-zero cross-correlations in between. Whereas the death rate within the logistic model is altered by a deterministic term…

细胞行为 · 定量生物学 2015-05-13 Thomas Bose , Steffen Trimper

Stochastic resonance induced by external factor is considering to investigate the complex dynamics of tumor. The surrounding environment and the treatment effects on the tumor growth are considered as additive and multiplicative noises in…

细胞行为 · 定量生物学 2017-07-18 Najmeh Sadat Mirian

A spatiotemporal noise is assumed to reflect the environmental fluctuation in a spatially extended tumor system. We introduce firstly the structure factor to reveal the invasive tumor growth quantitatively. The homogenous environment can…

其他定量生物学 · 定量生物学 2009-11-13 Wei-Rong Zhong , Yuan-Zhi Shao , Li Li , Feng-Hua Wang , Zhen-Hui He

The influence of random fluctuations on the recruitment of effector cells towards a tumor is studied by means of a stochastic mathematical model. Aggressively growing tumors are confronted against varying intensities of the cell-mediated…

其他定量生物学 · 定量生物学 2020-10-28 Irina Bashkirtseva , Lev Ryashko , Álvaro G. López , Jesus M. Seoane , Miguel A. F. Sanjuán

In the paper we investigate a mathematical model describing the growth of tumor in the presence of immune response of a host organism. The dynamics of tumor and immune cells is based on the generic Michaelis-Menten kinetics depicting…

We investigate noise-induced pattern formation in a model of cancer growth based on Michaelis-Menten kinetics, subject to additive and multiplicative noises. We analyse stability properties of the system and discuss the role of diffusion…

细胞行为 · 定量生物学 2007-05-23 Anna Ochab-Marcinek

The dynamical evolution of a tumor growth model, under immune surveillance and subject to asymmetric non-Gaussian $\alpha$-stableL\'evy noise, is explored. The lifetime of a tumor staying in the range between the tumor-free state and the…

动力系统 · 数学 2012-11-12 Mengli Hao , Jinqiao Duan , Renming Song , Wei Xu

We report on a simple model of spatial extend anti-tumor system with a fluctuation in growth rate, which can undergo a nonequilibrium phase transition. Three states as excited, sub-excited and non-excited states of a tumor are defined to…

生物物理 · 物理学 2009-11-11 Wei-Rong Zhong , Yuan-Zhi Shao , Zhen-Hui He

We study a spatially inhomogeneous model of cancer growth based on Michaelis--Menten kinetics, subjected to additive Gaussian noise and multiplicative dichotomous noise. In presence of the latter, we can observe a transition between two…

细胞行为 · 定量生物学 2007-05-23 Anna Ochab-Marcinek

Multiplicative noise is found to divide the growth law of tumors into two parts in a logistic model, which is driven by additive and multiplicative noises simultaneously. The Fokker-Planck equation was also derived to explain the fact that…

生物物理 · 物理学 2007-05-23 Wei-Rong Zhong , Yuan-Zhi Shao , Zhen-Hui He

Tumor-immune interactions are shaped by both antigenic heterogeneity and stochastic perturbations in the tumor microenvironment, yet the mathematical mechanisms underlying immune phase transitions remain poorly understood. We propose a…

种群与进化 · 定量生物学 2025-09-16 Mengfan Tan , Shaoqing Chen , Chunjin Wei , Da Zhou

This paper is devoted to exploring the effects of non-Gaussian fluctuations on dynamical evolution of a tumor growth model with immunization, subject to non-Gaussian {\alpha}-stable type L\'evy noise. The corresponding deterministic model…

动力系统 · 数学 2012-07-26 Mengli Hao , Ting Gao , Jinqiao Duan , Wei Xu

This paper explores fluctuations and noise in various facets of cancer development. The three areas of particular focus are the stochastic progression of cells to cancer, fluctuations of the tumor size during treatment, and noise in cancer…

细胞行为 · 定量生物学 2009-11-10 Matthew J. Berryman , Sabrina L. Spencer , Andrew Allison , Derek Abbott

In this work, we investigate the population dynamics of tumor cells under therapeutic pressure. Although drug treatment initially induces a reduction in tumor burden, treatment failure frequently occurs over time due to the emergence of…

概率论 · 数学 2025-10-02 Kevin Leder , Zicheng Wang , Xuanming Zhang

We present a model for the interaction dynamics of lymphocytes-tumor cells population. This model reproduces all known states for the tumor. Futherly,we develop it taking into account periodical immunotheraphy treatment with cytokines…

This paper investigates dynamic behaviors of the tumor-immune system perturbed by environmental noise. The model describes the response of the cytotoxic T lymphocyte (CTL) to the growth of an immunogenic tumour. The main methods are…

概率论 · 数学 2019-02-06 Xiaoyue Li , Guoting Song , Yang Xia , Chenggui Yuan

In this paper, we study a phase-space analysis of a mathematical model of tumor growth with an immune response. Mathematical analysis of the model equations with multipoint initial condition, regarding to dissipativity, boundedness of…

组织与器官 · 定量生物学 2018-01-17 Veli Shakhmurov

In a previous work, we presented a model that integrates cancer cell differentiation and immunotherapy, analysing a particular therapy against cancer stem cells by cytotoxic cell vaccines. As every biological system is exposed to random…

生物物理 · 物理学 2022-12-14 Marcela Reale , David Margarit , Ariel Scagliotti , Lilia Romanelli
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