Drag derivatives are provided herein which are suitable for loading into liposomal nanoparticle carriers. In some preferred aspects, the derivatives comprise a poorly water-soluble drag derivatized with a weak-base moiety that facilitates active loading of the drag through a LN transmembrane pH or ion gradient into the aqueous interior of the LN. The weak-base moiety can optionally comprise a lipophilic domain that facilitates active loading of the drag to the inner monolayer of the liposomal membrane. Advantageously, LN formulations of the drag derivatives exhibit improved solubility, reduced toxicity, enhanced efficacy, and/or other benefits relative to the corresponding free drags.
本文提供了适用于载入脂质体纳米粒子载体的拖曳导数。在某些优选方面,这些导数包括一种难溶于
水的拖曳经过弱碱基团衍生化,该弱碱基团促进通过LN跨膜pH或离子梯度将拖曳活性负载到LN的
水内部。弱碱基团可以选择包括一个亲脂性域,该亲脂性域促进将拖曳活性负载到脂质体膜的内单层。优点是,与相应的自由拖曳相比,拖曳导数的LN配方表现出改善的溶解度、降低的毒性、增强的功效和/或其他益处。