期刊
JOURNAL OF CONTROLLED RELEASE
卷 228, 期 -, 页码 191-205出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jconrel.2016.02.049
关键词
Drug carrier; Drug delivery; Human serum albumin; Ligand binding properties; Plasma lipocalins
资金
- CUIA
- Roma Tre University (CLA)
Lipocalins are an evolutionarily conserved family of proteins that bind and transport a variety of exogenous and endogenous ligands. Lipocalins share a conserved eight anti-parallel beta-sheet structure. Among the different lipocalins identified in humans, alpha-1-acid glycoprotein (AGP), apolipoprotein D (apoD), apolipoprotein M (apoM), alpha 1-microglobulin (alpha 1-m) and retinol-binding protein (RBP) are plasma proteins. In particular, AGP is the most important transporter for basic and neutral drugs, apoD, apoM, and RBP mainly bind endogenous molecules such as progesterone, pregnenolone, bilirubin, sphingosine-1-phosphate, and retinol, while alpha 1-m binds the heme. Human serum albumin (HSA) is a monomeric all-alpha protein that binds endogenous and exogenous molecules like fatty acids, heme, and acidic drugs. Changes in the plasmatic levels of lipocalins and HSA are responsible for the onset of pathological conditions associated with an altered drug transport and delivery. This, however, does not necessary result in potential adverse effects in patients because many drugs can bind both HSA and lipocalins, and therefore mutual compensatory binding mechanisms can be hypothesized. Here, molecular and clinical aspects of ligand transport by plasma lipocalins and HSA are reviewed, with special attention to their role as alterative carriers in health and disease. (C) 2016 Elsevier B.V. All rights reserved.
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