当前位置: X-MOL 学术Bull. Math. Biol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Directionality of Macrophages Movement in Tumour Invasion: A Multiscale Moving-Boundary Approach
Bulletin of Mathematical Biology ( IF 3.5 ) Pub Date : 2020-11-19 , DOI: 10.1007/s11538-020-00819-7
Szabolcs Suveges 1 , Raluca Eftimie 1 , Dumitru Trucu 1
Affiliation  

Invasion of the surrounding tissue is one of the recognised hallmarks of cancer (Hanahan and Weinberg in Cell 100: 57–70, 2000. 10.1016/S0092-8674(00)81683-9), which is accomplished through a complex heterotypic multiscale dynamics involving tissue-scale random and directed movement of the population of both cancer cells and other accompanying cells (including here, the family of tumour-associated macrophages) as well as the emerging cell-scale activity of both the matrix-degrading enzymes and the rearrangement of the cell-scale constituents of the extracellular matrix (ECM) fibres. The involved processes include not only the presence of cell proliferation and cell adhesion (to other cells and to the extracellular matrix), but also the secretion of matrix-degrading enzymes. This is as a result of cancer cells as well as macrophages, which are one of the most abundant types of immune cells in the tumour micro-environment. In large tumours, these tumour-associated macrophages (TAMs) have a tumour-promoting phenotype, contributing to tumour proliferation and spread. In this paper, we extend a previous multiscale moving-boundary mathematical model for cancer invasion, by considering also the multiscale effects of TAMs, with special focus on the influence that their directional movement exerts on the overall tumour progression. Numerical investigation of this new model shows the importance of the interactions between pro-tumour TAMs and the fibrous ECM, highlighting the impact of the fibres on the spatial structure of solid tumour.

中文翻译:

肿瘤侵袭中巨噬细胞运动的方向性:多尺度移动边界方法

周围组织的侵袭是公认的癌症标志之一(Hanahan 和 Weinberg 在 Cell 100: 57-70, 2000. 10.1016/S0092-8674(00)81683-9),这是通过复杂的异型多尺度动力学实现的,涉及癌细胞和其他伴随细胞(包括此处的肿瘤相关巨噬细胞家族)群体的组织规模随机和定向运动,以及基质降解酶和重排的新兴细胞规模活性细胞外基质(ECM)纤维的细胞尺度成分。所涉及的过程不仅包括细胞增殖和细胞粘附(与其他细胞和细胞外基质)的存在,还包括基质降解酶的分泌。这是癌细胞和巨噬细胞的结果,是肿瘤微环境中最丰富的免疫细胞类型之一。在大肿瘤中,这些肿瘤相关巨噬细胞 (TAM) 具有促肿瘤表型,有助于肿瘤增殖和扩散。在本文中,我们扩展了先前的癌症侵袭多尺度移动边界数学模型,同时考虑了 TAM 的多尺度效应,特别关注它们的定向运动对整体肿瘤进展的影响。这种新模型的数值研究显示了促肿瘤 TAM 和纤维 ECM 之间相互作用的重要性,突出了纤维对实体瘤空间结构的影响。这些肿瘤相关巨噬细胞 (TAM) 具有促进肿瘤的表型,有助于肿瘤的增殖和扩散。在本文中,我们扩展了先前的癌症侵袭多尺度移动边界数学模型,同时考虑了 TAM 的多尺度效应,特别关注它们的定向运动对整体肿瘤进展的影响。这种新模型的数值研究显示了促肿瘤 TAM 和纤维 ECM 之间相互作用的重要性,突出了纤维对实体瘤空间结构的影响。这些肿瘤相关巨噬细胞 (TAM) 具有促进肿瘤的表型,有助于肿瘤的增殖和扩散。在本文中,我们扩展了先前的癌症侵袭多尺度移动边界数学模型,同时考虑了 TAM 的多尺度效应,特别关注它们的定向运动对整体肿瘤进展的影响。这种新模型的数值研究显示了促肿瘤 TAM 和纤维 ECM 之间相互作用的重要性,突出了纤维对实体瘤空间结构的影响。特别关注它们的定向运动对整体肿瘤进展的影响。这种新模型的数值研究显示了促肿瘤 TAM 和纤维 ECM 之间相互作用的重要性,突出了纤维对实体瘤空间结构的影响。特别关注它们的定向运动对整体肿瘤进展的影响。这种新模型的数值研究显示了促肿瘤 TAM 和纤维 ECM 之间相互作用的重要性,突出了纤维对实体瘤空间结构的影响。
更新日期:2020-11-19
down
wechat
bug