相关实验视频

Updated: May 23, 2025

Transposon Mediated Integration of Plasmid DNA into the Subventricular Zone of Neonatal Mice to Generate Novel Models of Glioblastoma

Transposon Mediated Integration of Plasmid DNA into the Subventricular Zone of Neonatal Mice to Generate Novel Models of Glioblastoma

Published on: February 22, 2015

由高斯和非高斯噪音驱动的瘤状态过渡

Mengjiao Hua¹, Yu Wu^1,2,3

¹Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province and Department of Engineering Mechanics, Zhejiang University, Hangzhou, 310027, China.

Mechanobiology in medicine

|May 21, 2025

概括

分析瘤状态的转变,使用对随机流域稳定性的噪声效应. 增强负相关和非高斯噪声是破坏兴奋状态和提高癌症治疗疗效的关键.

科学领域:

理论物理学的理论物理.
生物物理学的生物物理.
数学建模的数学建模

背景情况:

瘤进展涉及高细胞度盆地和低细胞度盆地之间的状态过渡.
了解噪音引起的转变对于有效的癌症治疗至关重要.
以前的模型通常简化了噪声特征,限制了适用性.

研究的目的:

在高斯白色和非高斯彩色噪声下调查瘤状态过渡.
分析噪声特性对随机流域稳定性的影响.
确定治疗疗效的最佳噪声条件.

主要方法:

使用最可能的稳定状态 (MPSS) 来进行高斯白噪声分析.
对于非高斯色噪声,采用基于第一次逃逸概率 (FEP) 的随机吸引盆 (SBA).
使用统一的彩色噪声近似 (UCNA) 推导的马尔科夫系统.
分析的静态概率密度函数 (SPDF) 极端控制方程.

主要成果:

非高斯色噪声,与高斯白噪声不同,可以影响过渡.
交叉相关的噪音在SBA监管中表现出双重作用.
增加的SBA意味着更难逃离兴奋状态,与较差的治疗结果相关.
负相关噪声和较长的非高斯噪声相关时间会破坏激发盆地的稳定.

结论:

噪声特征显著影响瘤状态过渡和治疗疗效.
对噪声参数进行战略操纵,特别是增强负相关性和非高斯噪声相关时间,至关重要.
通过优化噪音来破坏激发瘤状态的稳定性,对于获得更好的治疗结果至关重要.

关键词:

盆地稳定性盆地稳定性非高斯色彩噪声非高斯色彩噪声吸引力的随机盆地吸引力瘤状态过渡的变化

更多相关视频

Translational Orthotopic Models of Glioblastoma Multiforme

Translational Orthotopic Models of Glioblastoma Multiforme

Published on: February 17, 2023

Processing of Primary Brain Tumor Tissue for Stem Cell Assays and Flow Sorting

Processing of Primary Brain Tumor Tissue for Stem Cell Assays and Flow Sorting

Published on: September 25, 2012

相关概念视频

Tumor Progression

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...

The Tumor Microenvironment

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...

Cancer

Cancer

Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.