Synthesis and evaluation of a DHA and 10-hydroxycamptothecin conjugate Original Research Article

We have synthesized a conjugate of cis-4,7,10,13,16,19-docosahexenoic acid (DHA) and 10-hydroxycamptothecin (HCPT), DHA–HCPT. The antitumor activity of DHA–HCPT was evaluated in vitro against L1210 leukemia cells and in experimental animal tumor models including L1210 leukemia, Lewis lung carcinoma, and colon 38 adenocarcinoma. DHA–HCPT showed a greatly improved antitumor efficacy compared to HCPT.