A novel Cabazitaxel Liposomes Modified with Ginsenoside Rk1 for Cancer Targeted Therapy

In this study, we aimed to enhance the anti-prostate cancer efficacy of cabazitaxel (CTX) and reduce its immunosuppression and systemic toxicity by developing CTX-loaded liposomes modified with ginsenoside Rk1 (Rk1/CTX-Lip). Physical and chemical properties of Rk1/CTX-Lip were investigated. We evaluated the biological functions of Rk1/CTX-Lip, both in vitro and in vivo. A subcutaneous prostate cancer (RM-1)-bearing mouse model was established to study the efficacy of Rk1/CTX-Lip inhibition in tumors. Simultaneously, a Candida albicans infection model was established in tumor-bearing mice to study the infection-relieving efficacy of Rk1/CTX-Lip. Finally, biocompatibility and in vivo safety of Rk1/CTX-Lip were evaluated. We successfully prepared Rk1/CTX-Lip, achieving high CTX encapsulation efficiency (97.24 ± 0.75%) and physical stability. Rk1/CTX-Lip demonstrated evasion of macrophage phagocytosis, effective tumor tissue targeting, and a significant reduction (>50%) in average tumor volume compared to Chol/CTX-Lip. Moreover, it relieved the concurrent infection burden and effectively regulated immune organs and cells, demonstrating superior biocompatibility. Rk1/CTX-Lip presents a promising new therapy for prostate cancer and holds potential for relieving concurrent fungal infections in cancer patients with low immunity. http://links.lww.com/AHM/A92