Cyclic Stretch-Induced Mechanical Stress Applied at 1 Hz Frequency Can Alter the Metastatic Potential Properties of SAOS-2 Osteosarcoma Cells

Recently, there has been an increasing focus on cellular morphology and mechanical behavior in order to gain a better understanding of the modulation of cell malignancy. This study used uniaxial-stretching technology to select a mechanical regimen able to elevate SAOS-2 cell migration, which is crucial in osteosarcoma cell pathology. Using confocal and atomic force microscopy, we demonstrated that a 24 h 0.5% cyclic elongation applied at 1 Hz induces morphological changes in cells. Following mechanical stimulation, the cell area enlarged, developing a more elongated shape, which disrupted the initial nuclear-to-cytoplasm ratio. The peripheral cell surface also increased its roughness. Cell-based biochemical assays and real-time PCR quantification showed that these morphologically induced changes are unrelated to the osteoblastic differentiative grade. Interestingly, two essential cell-motility properties in the modulation of the metastatic process changed following the 24 h 1 Hz mechanical stimulation. These were cell adhesion and cell migration, which, in fact, were dampened and enhanced, respectively. Notably, our results showed that the stretch-induced up-regulation of cell motility occurs through a mechanism that does not depend on matrix metalloproteinase (MMP) activity, while the inhibition of ion-stretch channels could counteract it. Overall, our results suggest that further research on mechanobiology could represent an alternative approach for the identification of novel molecular targets of osteosarcoma cell malignancy.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

International journal of molecular sciences - 24(2023), 9 vom: 22. Apr.

Sprache:

Englisch

Beteiligte Personen:

Alloisio, Giulia [VerfasserIn]
Rodriguez, David Becerril [VerfasserIn]
Luce, Marco [VerfasserIn]
Ciaccio, Chiara [VerfasserIn]
Marini, Stefano [VerfasserIn]
Cricenti, Antonio [VerfasserIn]
Gioia, Magda [VerfasserIn]

Links:

Volltext

Themen:

Biomechanical response
Cell migration
Cell morphology
Cell structural deformation
Cyclic mechanical strain
Ion Channels
Journal Article
Malignant bone cells
Mechanical stress
Mechano-sensing
Mechanobiology
Osteosarcoma

Anmerkungen:

Date Completed 15.05.2023

Date Revised 15.05.2023

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms24097686

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM356781720