Measuring Cellular Traction Forces with Micropillar Arrays

Amer, Malak; Wolfenson, Haguy

doi:10.1007/978-1-0716-2851-5_13

Methods in Molecular Biology

2023

DOI: 10.1007/978-1-0716-2851-5_13

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Measuring Cellular Traction Forces with Micropillar Arrays

Malak Amer

Haguy Wolfenson

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2024

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EnteropathogenicEscherichia coliinducesEntamoeba histolyticaLévy-like movement on fibronectin-rich substrate by reducing traction forces

Guo,

Ye,

Odeh

et al. 2024

Preprint

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Amebiasis, caused by Entamoeba histolytica, is a global health concern, affecting millions and causing significant mortality, particularly in areas with poor sanitation. Although recent studies have examined E. histolytica's interaction with human intestinal microbes, the impact of bacterial presence on the parasite's motility, mechanical forces, and their potential role in altering invasiveness have not been fully elucidated. In this study, we utilized a micropillar-array system combined with live imaging to investigate the effects of enteropathogenic Escherichia coli on E. histolytica's motility characteristics, F-actin spatial localization, and traction force exerted on fibronectin-coated substrates. Our findings indicate that co-incubation with E. coli significantly enhances the motility of E. histolytica, as evidenced by the enhancement of Lévy-like movement patterns, i.e., increased directionality and velocity. This increased motility is accompanied by a reduction in F-actin-dependent traction forces and podosome-like structures on fibronectin-coated substrates, but with increased F-actin localization in the upper part of the cytoplasm. These findings highlight the role of physical interactions and cellular behaviors in modulating the parasite's virulence, providing new insights into the mechanistic basis of its pathogenicity.

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EnteropathogenicEscherichia coliinducesEntamoeba histolyticaLévy-like movement on fibronectin-rich substrate by reducing traction forces

Guo,

Ye,

Odeh

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

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Measuring Cellular Traction Forces with Micropillar Arrays

Cited by 1 publication

References 9 publications

EnteropathogenicEscherichia coliinducesEntamoeba histolyticaLévy-like movement on fibronectin-rich substrate by reducing traction forces

EnteropathogenicEscherichia coliinducesEntamoeba histolyticaLévy-like movement on fibronectin-rich substrate by reducing traction forces

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