METHOD OF TREATING A TUMOR AND BIODISTRIBUTION OF A DRUG DELIVERED BY WORM-LIKE FILOMICELLES

摘要

Provided are filomicelle nanocarrier systems for the controlled transport and bioselective delivery of encapsulatable, cytotoxic active agents contained therein, particularly anticancer agents. Further provided are methods for controlling destabilization of the filomicelle membrane and the resulting hydrolysis-triggered, controlled release of the active agent(s) encapsulated therein by controlling the blend ratio (mol%) of hydrolysable PEO-block copolymer of the hydrophilic component(s) and of the more hydrophobic PEO-block copolymer component(s), wherein bioselective release of the encapsulated cytotoxic agents is distributed intracellularly, and wherein lowered dosage of the drug was delivered to the non-tumor organs. Thus, the filomicelle system offers enhanced tumor-selective biodistribution of a drug, and a reduced toxicity of the encapsulated drug to other organs.