Preclinical antitumor activity of the diindolylmethane formulation in xenograft mouse model of prostate cancer

• Published in: Experimental Oncology
• Date: 2014
• Main Authors: Kiselev, V.I., Drukh, V.M., Muyzhnek, E.L., Kuznetsov, I.N., Pchelintseva, O.I., Paltsev, M.A.
• Format: Article
• Language: English
• Published: Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України 2014
• Subjects: Original contributions
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/145337
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Preclinical antitumor activity of the diindolylmethane formulation in xenograft mouse model of prostate cancer / V.I. Kiselev, V.M. Drukh, E.L. Muyzhnek, I.N. Kuznetsov, O.I. Pchelintseva, M.A. Paltsev // Experimental Oncology. — 2014. — Т. 36, № 2. — С. 90-93. — Бібліогр.: 20 назв. — англ.

Aim: Preclinical study of the specific anticancer pharmacological activity of the formulation containing active substance 3,3ʹ-diindolylmethane (DIM), cod liver oil, polysorbate 80 and α-tocopherol acetate (vitamin E), in vivo in a xenograft animal model of LNCaP. Materials and Methods: The DIM, cod liver oil, polysorbate 80 and α-tocopherol acetate (vitamin E) formulation was intragastrically administered to BALB/c-nude (nu/nu) mice during 33 days post inoculation at the dose of 133 mg/kg/day. Antitumor activity of the test drug was estimated by the rate of tumor growth inhibition (T/C% — treated versus control), dividing the tumor volumes from treatment groups with the control groups. Results: Statistically significant tumor xenograft regressions have been shown in group which received the DIM, cod liver oil, polysorbate 80 and α-tocopherol acetate (vitamin E) on the 37th day of observation post inoculation. The highest antitumor activity was achieved on the 39th day (T/C = 16,8%). Therapeutic effect lasts for 6 days after the end of therapy period. Conclusion: Our findings demonstrate inhibitory effect of the formulation on tumor development in the xenograft animal model due to the tumor growth rate reduction. Key Words: 3,3´-diindolylmethane, bioavailability, anticancer activity, xenograft model, LNCaP cell line, preclinical studies.