Evidence map›Paper›PMID 31076101›Full record

ArticleBiophysical journal2019

Mechanics and Actomyosin-Dependent Survival/Chemoresistance of Suspended Tumor Cells in Shear Flow.

Ying Xin, Xi Chen, Xin Tang, Keming Li, Mo Yang, William Chi-Shing Tai, Yiyao Liu, Youhua Tan

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 78 citations in OpenAlex.

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  10. Premetastatic niche mechanics and organotropism in breast cancer.npj biological physics and mechanics · 2025
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  11. Mechanical signatures in cancer metastasis.npj biological physics and mechanics · 2025
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Ying XinThe Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Xi ChenThe Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Xin TangDepartment of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Keming LiThe Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Mo YangDepartment of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
William Chi-Shing TaiDepartment of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
Yiyao LiuUniversity of Electronic Science and Technology of China, Chengdu, China.
Youhua TanThe Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China; Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China. Electronic address: youhua.tan@polyu.edu.hk.
Hong Kong Polytechnic University · HKUniversity of Electronic Science and Technology of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tumor cells disseminate to distant organs mainly through blood circulation in which they experience considerable levels of fluid shear stress. However, the effects of hemodynamic shear stress on biophysical properties and functions of circulating tumor cells (CTCs) in suspension are not fully understood. In this study, we found that the majority of suspended breast tumor cells could be eliminated by fluid shear stress, whereas cancer stem cells held survival advantages over conventional cancer cells. Compared to untreated cells, tumor cells surviving shear stress exhibited unique biophysical properties: 1) cell adhesion was significantly retarded, 2) these cells exhibited elongated morphology and enhanced spreading and expressed genes related to epithelial-mesenchymal transition or hybrid phenotype, and 3) surviving tumor cells showed reduced F-actin assembly and stiffness. Importantly, inhibiting actomyosin activity promoted the survival of suspended tumor cells in fluid shear stress, whereas activating actomyosin suppressed cell survival, which might be explained by the up- and downregulation of the antiapoptosis genes. Soft surviving tumor cells held survival advantages in shear flow and higher resistance to chemotherapy. Inhibiting actomyosin activity in untreated cells enhanced chemoresistance, whereas activating actomyosin in surviving tumor cells suppressed this ability. These findings might be associated with the corresponding changes in the genes related to multidrug resistance. In summary, these data demonstrate that hemodynamic shear stress significantly influences biophysical properties and functions of suspended tumor cells. Our study unveils the regulatory roles of actomyosin in the survival and drug resistance of suspended tumor cells in hemodynamic shear flow, which suggest the importance of fluid shear stress and actomyosin activity in tumor metastasis. These findings may reveal a new, to our knowledge, mechanism by which CTCs are able to survive hemodynamic shear stress and chemotherapy and may offer a new potential strategy to target CTCs in shear flow and combat chemoresistance through actomyosin.

Indexed as

Drug Resistance, NeoplasmShear StrengthActomyosinBiomechanical PhenomenaCell Line, TumorCell SurvivalHemodynamicsHumansStress, MechanicalActomyosin

Identifiers

PMID31076101
PMCPMC6531788
OpenAlexW2936086509

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.