在本研究中,我们制备了iRGD,CRGDK/RGPD/EC)修饰、含溶血磷脂的温敏脂质体(LTSL)载体系统用以递送共轭亚油酸-紫杉醇(CLA-PTX),简称iRGD-LTSL-CLA-PTX。在B16-F10黑色素瘤细胞上评估了iRGD-LTSL-CLA-PTX的体外细胞摄取和体外细胞毒性。在荷B16-F10黑色素瘤的C57BL/6小鼠上评价了iRGD-LTSL-CLA-PTX的体内抗肿瘤作用。细胞摄取实验结果表明,与SSL-CLA-PTX组相比,在42oC分别孵育2、4和6 h, iRGD-LTSL-CLA-PTX给药组中CLA-PTX的细胞摄取分别增加2.05、3.31和4.83倍。体内抗肿瘤效果表明,与CLA-PTX溶液、LTSL-CLA-PTX、LTSL-CLA-PTX(加热条件)和iRGD-LTSL-CLA-PTX相比,iRGD-LTSL-CLA-PTX(加热条件)可显着抑制B16-F10肿瘤的生长(P<0.01)。iRGD-LTSL-CLA-PTX对B16-F10黑素瘤的体外和体内抗肿瘤作用得到证实,这是iRGD和LTSL共同作用的结果。
In the present study, we prepared the iRGD-modified lysolipid-containing thermosensitive liposomes(LTSL) containing conjugated linoleic acid-paclitaxel(CLA-PTX), also known as iRGD-LTSL-CLA-PTX. The in vitro cellular uptake and in vitro cytotoxicity of iRGD-LTSL-CLA-PTX were evaluated in B16-F10 melanoma cells. The in vivo anti-tumor effect of i RGD-LTSL-CLA-PTX was investigated using B16-F10 tumor-bearing C57BL/6 mice. The results of the cellular uptake experiment indicated that the increased cellular uptake of CLA-PTX in the iRGD-LTSL-CLA-PTX-treated groups was 2.05-, 3.31-or 4.83-fold compared with that in the SSL-CLA-PTX group after a 2-, 4-or 6-h incubation at 42 °C, respectively. The in vivo antitumor results showed that iRGD-LTSL-CLA-PTX/heat significantly inhibited the growth of B16-F10 tumors compared with the CLA-PTX solution(LTSL-CLA-PTX, LTSL-CLA-PTX/heat and iRGD-LTSL-CLA-PTX)(P<0.01). In conclusion, the antitumor effect of iRGD-LTSL-CLA-PTX was confirmed on B16-F10 melanoma in vitro and in vivo, which was induced by both the effect of iRGD and LTSL.
Journal of Chinese Pharmaceutical Sciences
National Natural Science Foundation of China(Grant No.81172992)
the National Key Research and Development Program of China(Grant No.2017YFA0205600).
Lysolipid-containing thermosensitive liposomes
Corresponding author:Xuan Zhang,Tel./Fax:+86-010-82805765 E-mail:firstname.lastname@example.org