Observe the morphological changes of cells by immunofluorescence
staining
Part of the samples were digested by trypsin in each group and then
collected by centrifugation. The cells were adjusted to about 1*105/ml,
dripped onto the glass slide, smeared evenly, and dried at room
temperature. The cells were then stained according to the
immunofluorescence staining procedure and observed the morphological
changes under a microscope. Then we compared the cells with normal nasal
polyp tissue .