A Paclitaxel ‐Based Mucoadhesive Nanogel with Multivalent Interactions for Cervical Cancer Therapy

A mucoadhesive nanogel is introduced to prolong the residence time and dramatically improve the drug efficiency in local cervical cancer therapy. This nanogel not only displays mucoadhesive properties that adhere strongly to mucins but also contributes to the penetration of drugs in epithelial cell monolayers. The new design with multivalent interactions exerts excellent anticancer activity in cervical cancer. AbstractCervical cancer treatment is subject to limited drug access to locally diseased targets and generally resistant to chemotherapy, thus it is essential to develop a local drug delivery system to overcome these problems, premised on guaranteeing drug efficacy. With this goal in mind, a multivalent interactions ‐based mucoadhesive nanogel for vaginal delivery is proposed. Briefly, the nanogel is constructed with mucoadhesive poly(acrylic acid) as the backbone and multiple inclusions between β‐cyclodextrin and paclitaxel as the crosslinking points. The in vitro experiments demonstrate that nanogel exer ts high cytotoxicity to cancer cells, reverses multidrug resistance effectively, and successfully promotes the permeation of drugs. More to the point, as proved in the in vivo experiments, the retention time in the vagina is prolonged and the tumor growth is effectively suppressed by the nanogel wit hout any side effects in the orthotopic cervical cancer model. As mentioned above, this novel mucoadhesive nanogel is believed to be a useful tool toward designing dru...
Source: Small - Category: Nanotechnology Authors: Tags: Full Paper Source Type: research