Abstract

For the surgery of gynecological malignant tumors, a predeposit type of autologous blood transfusion has been widely used. However, using molecular biologic techniques, malignant cells have been found in the peripheral blood of cancer patients. Therefore, to evaluate the utility of presurgical blood deposits, we studied the survival of gynecological malignant cultured cells after 4°C storage in citrate-phosphate-dextrose solution. Ten cultured cell lines derived from gynecological malignant tumors were used. Mixtures of 1 × 10⁵ cells, culture medium, and citrate-phosphate-dextrose (CPD) solution were stored at 4°C. After 0, 1, 4, 8, 15, or 22 days of storage, cells were placed in 96-well microtiter plates in culture medium with 1 × 10⁴ cells/100μl/well. After 24 h culture in the incubator, the survival rate was calculated from the optical density by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) assay. More than 10% of surviving cells were seen in nine cell lines after 4 days of storage, in seven cell lines after 8 days, in three cell lines after 15 days, and in two cell lines after 22 days. Cancer cells in presurgical blood deposits may survive a 3-week storage period at 4°C in CPD solution.