联合使用pomalidomide和CAR-T细胞对抗多发性骨髓瘤细胞RPMI8226和U266细胞

Cytotoxity of pomalidomide combined CAR-T cell for multiple myeloma cell RPMI8226 and U266

OBJECTIVE:
To observe the cytotoxity of CD138-CAR-T cells on human multiple myeloma cell RPMI8226 and U266 cells and explore the impact of pomalidomide on the cytotoxity of CD138-CAR-T on RPMI8226 and U266 cells.
METHODS:
The cytotoxity of CD138-CAR-T and CD138-CAR-T combined pomalidomide on RPMI8226 and U266 was detected by CFSE/7AAD. The effctor cells were co-cultured with target cells at 5:1 for 18 h, and then the supernatant were collected and used for ELISA assays.
RESULTS:
After 18 h co-culture, the cytotoxity of CD138-CAR-T on RPMI8226 and U266 was significantiy higher than control (P<0.01). There was no significant change on the cytotoxity of pomalidoide combined with CD138-CAR-T on RPMI8226 and U266. The results showed that co-cultured system contribted to a markedly increased production of IFN-γ, after adding pomalidomide to the co-cultured system. It can significantly enhance the production of IFN-γ, compared with CD138-CAR-T alone.
CONCLUSION:
CD138-CAR-T had significantly cytotoxity on U266 and RPMI8226. Pomalidomide could promote CD138-CAR-T cells IFN-γ production.

联合使用pomalidomide和CAR-T细胞对抗多发性骨髓瘤细胞RPMI8226和U266细胞
目标：
为了观察CD 138-CAR-T细胞对人多发性骨髓瘤RPMI8226 和 U266细胞的毒性，以及探索联合使用pomalidomide和CAR-T细胞对多发性骨髓瘤细胞RPMI8226和U266细胞的作用。
方法：
CD138-CAR-T，CD138-CAR-T联合pomalidomide对多发性骨髓瘤RPMI8226和U266细胞的毒性通过CFSE/7AAD方法检测。效应细胞和靶细胞以5:1的比例共同培养18h，然后收集悬浮的细胞并做ELSA检测。
结果：
18h的共培养之后，CD138-CAR-T对多发性骨髓瘤RPMI8226和U266细胞的毒性明显高于控制组（P<0.01）。对于CD138-CAR-T联合pomalidomide这一组，对多发性骨髓瘤RPMI8226和U266细胞的毒性没有明显的变化。结果显示，在增加pomalidomide到该系统中，共培养系统会明显增加IFN-γ的量。与单独使用CD138-CAR-T相比，能够明显增加IFN-γ的量。
结论：
CD138-CAR-T能够明显增加对多发性骨髓瘤RPMI8226和U266细胞的毒性。Pomalidomide能够增加CD138-CAR-T细胞IFN-γ的生产。
出自爱康得生物技术