期刊
TISSUE BARRIERS
卷 1, 期 2, 页码 -出版社
TAYLOR & FRANCIS AS
DOI: 10.4161/tisb.24565
关键词
drug enhancer; sodium caprate; tissue barrier; tight junctions; surfactants; peptides; siRNA; claudin
资金
- DFG [BL308/7-4]
- EU Project JUSTBRAIN
A limitation in the uptake of many drugs is the restricted permeation through tissue barriers. There are two general ways to cross barriers formed by cell layers: by transcytosis or by diffusion through the intercellular space. In the latter, tight junctions (TJs) play the decisive role in the regulation of the barrier permeability. Thus, transient modulation of TJs is a potent strategy to improve drug delivery. There have been extensive studies on surfactant-like absorption enhancers. One of the most effective enhancers found is sodium caprate. However, this modulates TJs in an unspecific fashion. A novel approach would be the specific modulation of TJ-associated marvel proteins and claudins, which are the main structural components of the TJs. Recent studies have identified synthetic peptidomimetics and RNA interference techniques to downregulate the expression of targeted TJ proteins. This review summarizes current progress and discusses the impact on TJs' barrier function.
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