Appropriate dosage of interleukin-2 for tumor infiltrating lymphocyte cultured in self-supernatant of malignant pleura fluid / 医学研究生学报

Objective:To select an appropriate dosage of IL-2 for tumor infiltrating lymphocyte(TIL).Methods:Isolated by the attachment method we established,TIL was cultivated in self-supernatant of malignant pleura,with three different concentrations of IL-2,such as 6000u per ml,6000u per ml for the first administration followed by 1000u per ml,or 1000u per ml.The expansion,killing activity and phenotype changes of TIL cultured in different cultures were assessed.Results:As cultured in self-supernatant of malignant pleura fluid,the concentrations of IL-2,such as 6000u per ml or 6000u per ml for the first administration followed by 1000u per ml seemed benefit for TIL proliferation.Conclusion:6000u per ml of IL-2 for the first administration was very important.It could help TIL to activate and proliferate early.The study described here offers the possibility for TIL cultured in vitro self-supernatant of malignant pleura fluid in vitro for a short time,and then reinfuse to thorax for further expanding and controlling the malignant pleura effusion in the presence of IL-2,and thereby minimizing the risks of contamination.

The use of autologous supernatant of malignant pleura effusion in culturing human tumor infiltrating lymphocytes in vitro / 医学研究生学报

Objective:To study the effect of autologous supernatant of malignant pleura effusion and RPMI1640 with 10% AB+ serum on the culture of tumor infiltrating lymphocytes (TIL) in vitro. Methods:Isolated by the attachment method we established, TIL was cultured in either autologous supernatant of malignant pleura fluid or RPMI1640 with 10% AB+ serum, and various types of cytokines such as (IL-2,) PHA and antibody against CD3 (OKT3) were added into both cultures. The proliferation as well as the killing activity and the phenotype changes of TIL cultured in the two kinds of cultures were compared. Results:There was no difference in the proliferation or the killing activity in vitro as well as the phenotype changes of TIL between the two kinds of cultures. Conclusion: Autologous supernatant of malignant pleura fluid could be used as TIL culture medium. The method described here made it possible for TIL to be cultured in vitro for a short time, and then reinfused back to thorax for further expanding and controlling the malignant pleura effusion in the presence of IL-2, and it alsominimized the risks of contamination.