3,5,4′-trimethoxy-trans-stilbene loaded PEG-PE micelles for the treatment of colon cancer

Abstract

Jun-Yong Wu,1–3* Yong-Jiang Li,1–3* Xin-Yi Liu,1–3 Jia-Xin Cai,1–3 Xiong-Bin Hu,1–3 Jie-Min Wang,1–3 Tian-Tian Tang,1–3 Da-Xiong Xiang1–3 1Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People’s Republic of China; 2Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People’s Republic of China; 3Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People’s Republic of China*These authors contributed equally to this workCorrespondence: Da-Xiong XiangDepartment of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People’s Republic of ChinaEmail [email protected]: 3,5,4′-trimethoxy-trans-stilbene (BTM) is a methylated derivative of resveratrol. To improve the pharmaceutical properties of BTM, BTM loaded PEG-PE micelles (BTM@PEG-PE) were fabricated and its anti-cancer efficacy against colon cancer was evaluated.Methods: BTM@PEG-PE micelles were prepared by the solvent evaporation method and were characterized by nuclear magnetic resonance (NMR), size, zeta potential, polymer disperse index (PDI) and transmission electron microscopy (TEM). Cellular uptake, cell viability assay, caspase-3 activity assay and flow cytometry were performed to evaluate the cell internalization and anti-cancer efficacy of BTM@PEG-PE micelles in vitro. Pharmacokinetic profiles of BTM and BTM@PEG-PE micelles were compared and in vivo anti-cancer therapeutic efficacy and safety of BTM@PEG-PE micelles on CT26 xenograft mice were evaluated.Results: BTM was successfully embedded in the core of PEG-PE micelles, with a drug loading capacity of 5.62±0.80%. PEG-PE micelles facilitated BTM entering to the CT26 cells and BTM@PEG-PE micelles exerted enhanced anti-cancer efficacy against CT26 cells. BTM@PEG-PE micelles showed prolonged half-life and increased bioavailability. More importantly, BTM@PEG-PE micelles treatment suppressed tumor growth in tumor-bearing mice and prolonged survival with minimal damage to normal tissues.Conclusion: Altogether, the BTM@PEG-PE micelles might be a promising strategy to enhance the pharmacokinetic and pharmacodynamic potentials of BTM for colon cancer therapy.Keywords: 3,5,4′-trimethoxy-trans-stilbene, bioavailability, colon cancer, drug delivery, micelles

Keywords

• 3
• 5
• 4′-trimethoxy-trans-stilbene
• bioavailability
• colon cancer
• drug delivery
• micelles