The invention discloses an
in vitro culture method of
cervical intraepithelial neoplasia cells. The
in vitro culture method comprises the following steps: step one, taking a small piece of human cervical neoplasia tissue; step two, after digesting and decomposing by a type I
collagenase, preparing a
cell suspension; step three, utilizing a
trypan blue dye exclusion method to judge the
cell activity; step four, introducing the
cell suspension into a culture
bottle containing a low
fetal bovine serum culture medium and coated with
rat tail collagen, and waiting for the cells to adhere to the wall; and step five, after the cells adhere to the wall, replacing with a serum-free culture medium, purifying the
cervical intraepithelial neoplasia cells, replacing the culture liquid weekly for at least two times, and after the cells are fused to 80%-85%, carrying out passage. The CIN cells cultured by the method have
high survival rate and high purity, allows the morphology of the cells after passage to have no obvious change compared with that of the primary cells, and is carried with
human papillomavirus (HPV); and the success of the CIN cell
in vitro culture provides
technical support for research on treatment of
cervical cancer.