scholarly journals A systematic approach for developing mechanistic models for realistic simulation of cancer cell motion and deformation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pouyan Keshavarz Motamed ◽  
Nima Maftoon

AbstractUnderstanding and predicting metastatic progression and developing novel diagnostic methods can highly benefit from accurate models of the deformability of cancer cells. Spring-based network models of cells can provide a versatile way of integrating deforming cancer cells with other physical and biochemical phenomena, but these models have parameters that need to be accurately identified. In this study we established a systematic method for identifying parameters of spring-network models of cancer cells. We developed a genetic algorithm and coupled it to the fluid–solid interaction model of the cell, immersed in blood plasma or other fluids, to minimize the difference between numerical and experimental data of cell motion and deformation. We used the method to create a validated model for the human lung cancer cell line (H1975), employing existing experimental data of its deformation in a narrow microchannel constriction considering cell-wall friction. Furthermore, using this validated model with accurately identified parameters, we studied the details of motion and deformation of the cancer cell in the microchannel constriction and the effects of flow rates on them. We found that ignoring the viscosity of the cell membrane and the friction between the cell and wall can introduce remarkable errors.

2014 ◽  
Vol 926-930 ◽  
pp. 1061-1064
Author(s):  
Yan Li Xi ◽  
Xiang Qun Wu ◽  
Jie Yu ◽  
Wei Guo Xu ◽  
Tong Zhao ◽  
...  

It is a good therapeutic method that add exogenous ROS to trigger oxidative stress causing death of cancer cells. In the present study, we investigated the inhibitory effects of 3,4,5-trihydroxybenzoic acid (TBA), a polyhydroxyphenolic compound, on high metastatic human lung cancer cell line (95-D) based on inducing reactive oxygen species (ROS). The experiments in vitro showed that 95-D cell viability was inhibited by various amounts of TBA and death was induced in a dose-dependent manner. The possible mechanism was that TBA can induce cell death by decreasing mitochondrial membrane potential (MMP; ΔΨm) and increasing hydrogen peroxide (H2O2) level. These results imply that TBA efficiently induces death in 95-D lung cancer cells and that TBA exerts cytotoxicity on cancer cells by its pro-oxidative activity.


PLoS ONE ◽  
2012 ◽  
Vol 7 (3) ◽  
pp. e33358 ◽  
Author(s):  
Yang Shi ◽  
Xuelian Fu ◽  
Yong Hua ◽  
Yang Han ◽  
Ying Lu ◽  
...  

2011 ◽  
Vol 31 (10) ◽  
pp. 1091-1095
Author(s):  
Xiao-lin LI ◽  
Yan-fang ZHANG ◽  
Kai TANG ◽  
Ying TANG ◽  
Ruo-bing JIN ◽  
...  

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Asieh Naderi ◽  
Elham Soltanmaohammadi ◽  
Vimala Kaza ◽  
Shayne Barlow ◽  
Ioulia Chatzistamou ◽  
...  

Epidemiological evidence suggests that social interactions and especially bonding between couples influence tumorigenesis, yet whether this is due to lifestyle changes, homogamy (likelihood of individuals to marry people of similar health), or directly associated with host-induced effects in tumors remains debatable. In the present study, we explored if tumorigenesis is associated with the bonding experience in monogamous rodents at which disruption of pair bonds is linked to anxiety and stress. Comparison of lung cancer cell spheroids that formed in the presence of sera from bonded and bond-disrupted deer mice showed that in monogamous Peromyscus polionotus and Peromyscus californicus, but not in polygamous Peromyscus maniculatus, the disruption of pair bonds altered the size and morphology of spheroids in a manner that is consistent with the acquisition of increased oncogenic potential. In vivo, consecutive transplantation of human lung cancer cells between P. californicus, differing in bonding experiences (n = 9 for bonded and n = 7 for bond-disrupted), and nude mice showed that bonding suppressed tumorigenicity in nude mice (p<0.05), suggesting that the protective effects of pair bonds persisted even after bonding ceased. Unsupervised hierarchical clustering indicated that the transcriptomes of lung cancer cells clustered according to the serum donors’ bonding history while differential gene expression analysis pointed to changes in cell adhesion and migration. The results highlight the pro-oncogenic effects of pair-bond disruption, point to the acquisition of expression signatures in cancer cells that are relevant to the bonding experiences of serum donors, and question the ability of conventional mouse models to capture the whole spectrum of the impact of the host in tumorigenesis.


Author(s):  
M. Afrin Nisha ◽  
S. Preetha ◽  
J. Selvaraj ◽  
G. Sridevi

Background: Kabasura kudineer is widely known for its anticancer efficiency. Kabasura kudineer is a customary formulation used by siddha practitioners for effectively managing common respiratory illness. Herbal medicines are acknowledged as a great approach to lung cancer therapy. Aim of the study is to know about the anticancer property of Kabasura kudineer extract on inflammatory cytokines IL-6 and TNF-α in lung cancer cell line (A549). Materials and Methods: Human lung cancer cell line (A549) was purchased from National Centre for Cell Sciences (NCCS), Pune, India. Cell viability test was done by MTT assay. Gene expression analysis was done by Real Time-PCR. The obtained data were analysed statistically by one-way analysis of variance and Duncan’s multiple range test with Graph Pad Prism version 5 to analyse the significance. The significance was considered at p<0.05 level in Duncan’s test. Results and Discussion: Kabasura kudineer caused a marked increase in cell death in dose dependent manner. AT the end of 48 hours, maximum inhibition was at 400 and 500 μg/ml. Kabasura kudineer extract reduced the expression of IL-6 and TNF-α compared to the control cells. Conclusion: This study concluded that Kabasura kudineer extract has anticancer activity on lung cancer cell lines (A549).


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