Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Effect of PM2.5 on metastasis of human SMMC-7721 cells in vitro
(A) Scratch wound assay was used to assess the effect of PM2.5 on SMMC-7721 migration at 24 h after PM2.5 treatment. Photographs were taken at 24h after scratch injury under ×200 original magnification. (B) Invasion ability of the cells were examined by transwell assay.
