Abstract

We investigated the effect of multiple stress waves with peak stress of less than 3 MPa on chemosensitivity of HeLa cells adhered on plastic. HeLa cells exposed to stress waves retained more than 95% of the viability found in untreated cells. The scanning electron microscopy of cells exposed to stress waves showed ruffling microvilli, indicating a change in the cell surface morphology. The cytotoxicity of bleomycin (BLM) on HeLa cells was enhanced by the stress waves exposure. Our findings demonstrated that the low-intensity stress wave would allow to deliver the BLM molecules into cytoplasm by repetition exposure.

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