Potential of radioiodinated anticancer compounds of traditional Chinese medicine for cancer therapy

作者:Yang, Min*; Xu, Yu-pin; Pan, Dong-hui; Din, Hong; Wang, Li-zhen; Wang, Guang-ji
来源:Journal of Radioanalytical and Nuclear Chemistry, 2010, 283(1): 189-191.
DOI:10.1007/s10967-009-0192-6

摘要

23-Hydroxybetulinic acid (23-HBA) is the efficient antitumor compound extracted from the roots of a Chinese Medicinal Herb, Pulsatilla chinensis (Bge) Regel. To evaluate the effect of radioiodination on cytotoxicity, 23-HBA was radioiodinated with I-125. I-125-23-HBA could be prepared in high yields and good radiochemical purity and was characterized using reverse phase HPLC. In ICR mice bearing Liver Cancer HepA tumor, I-125-23-HBA showed a tumor uptake of 2.1% ID/g at 2 hp.i. and 0.15% ID/g at 48 hp.i on i.v. injection. When injected intratumorally, greater tumor uptake and retention was observed (20% ID/g at 2 hp.i. and 4.6% ID/g at 48 hp.i. respectively).