Abstract
Liver cancer is the third leading cause of cancer deaths globally. The use of Hydroxycamptothecin (HCPT) as a first-line chemotherapeutic agent for liver, lung, and gastric cancers is often hampered by its low activity, limited targeting, and poor water solubility. This results in a low accumulation of HCPT in tumor cells, as well as the inability to maintain continuous treatment. Consequently, there is an urgent need to develop an accessory method that can enhance the therapeutic efficacy of HCPT while exhibiting good biocompatibility and targeted delivery ability. To address this critical issue, an enzyme-triggered supramolecular nanocarrier, refer as SCD/LCC SNCs, has been successfully developed, leveraging the aggregation of the negatively charged sulfate-modified β-CDs and positively charged lauroylcholine chloride (LCC). This nanocarrier demonstrates acetylcholinesterase (LCC) triggered decomposition behavior, making it a promising drug carrier for HCPT. The cellular assays conducted have demonstrated that HCPT loaded into these SCD/LCC SNCs exhibit reduced cytotoxicity towards normal cells while maintaining robust tumor inhibitory activity and inducing apoptosis. Therefore, this study offers a promising strategy for the effective use of HCPT in the treatment of liver cancer.
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