Background/Aim: The aim of this study was to evaluate the characteristics of two cisplatin (CDDP)-loaded, sialyl Lewis X-modified liposomes (CDDP-SLX-LIP) with different particle size. Each had the same lipid composition and CDDP concentration, but a different drug-to-lipid ratio. Materials and Methods: The amount of platinum in the filtrates was determined by the ICP method. The antitumor effect was assessed using rats bearing MRMT-1 tumor. Results: CDDP release was faster from the larger liposome formulation (L-LIP) than from the smaller one (S-LIP). Treatment with the two CDDP-SLX-LIPs resulted in comparable antitumor effects without obvious side-effects, but treatment with CDDP solution resulted in significant weight loss and an elevated BUN. Tumor accumulation of CDDP-SLX-LIP was clearly greater than that of CDDP solution and accumulation of S-LIP was greater than that of L-LIP. Conclusion: CDDP-SLX-LIP exhibited antitumor effects depending on their release behavior and tumor accumulation.
CITATION STYLE
Kishimoto, S., Fujitani, N., Ohnishi, T., Aoki, H., Suzuki, R., & Fukushima, S. (2017). Cisplatin-loaded, sialyl lewis x-modified liposomes: Drug release, biodistribution and antitumor efficacy. Anticancer Research, 37(11), 6055–6061. https://doi.org/10.21873/anticanres.12053
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