Liang JH, Zhang W, Guo Q, Tang H. Application of improved tissue piece enzyme digestion method in primary culture of human colorectal cancer cells
in vitro.
Shijie Huaren Xiaohua Zazhi 2016;
24:4562-4567. [DOI:
10.11569/wcjd.v24.i34.4562]
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Abstract
AIM
To investigate methods of primary culture of human colorectal cancer cells in vitro by application of improved tissue piece enzyme digestion method.
METHODS
Human colorectal cancer cells were cultured by improved tissue piece enzyme digestion method, which combines the tissue explant method with Ⅳ collagenase digestion method. Colorectal cancer cells were obtained by optimizing culture conditions, promoting adherence, controlling pollution, and purifying the cells. Wright Giemsa staining and immunocytochemistry were used to identify the cells.
RESULTS
Wright Giemsa staining of the cells showed karyomegaly and purple red-stained colorectal cancer cells. Immunocytochemistry staining showed that the cells were carbohydrate antigen 19-9 (CA19-9) positive and the cytoplasm was brown.
CONCLUSION
We have improved the tissue piece enzyme digestion method, which allows to obtain free cells quickly and make full use of the tissue pieces which have not been digested completely. The improved tissue piece enzyme digestion method has a high success rate, and cultured cells have been identified as colorectal cancer cells.
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