چکیده (انگلیسی):

Nickel nanowires (Ni NWs) have great potential to be used as a living cell manipulation
tool and developed into an anticancer agent. However, their candidacy as biomedical appliances
need detailed human cell studies, such as study of the interaction between Ni NWs
and tumor cells. The present study investigated the cytotoxicity of Ni NWs in HeLa cells. A
dose-dependent inhibition of cell growth was observed by using the MTT assay. We demonstrated
that Ni NWs induced oxidative stress by generation of reactive oxygen species (ROS).
Apoptosis induction was evidenced by flow cytometry, annexin V binding assay and DAPI
staining. DNA flow cytometric analysis indicated that Ni NWs significantly increased the
percentages of cells in S phase compared with control cells. This process was accompanied
by the loss of mitochondrial membrane potential. These results revealed that Ni NWs
induced apoptosis in HeLa cells via ROS generation and cell cycle arrest.