Non-affinity factors modulating vascular targeting of nano- and microcarriers

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• 作者：Jacob W. Myerson^a ; Aaron C. Anselmo^b ; Yaling Liu^c ; Samir Mitragotri^b ; David M. Eckmann^a ; Vladimir R. Muzykantov^a ; ^{muzykant@mail.med.upenn.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：RES ; reticulo-endothelial system ; PEG ; poly(ethylene) glycol ; RBC ; red blood cell ; ICAM ; intercellular adhesion molecule ; NIPAm ; n-isopropylacrylamide ; AFM ; atomic force microscopy ; GPIIb/IIIa ; glycoprotein IIb/IIIa ; integrin αIIbβ3 ; PLGA ; poly(lactic-co-glycolic acid) ; vWF ; von Willebrand Factor ; GPIbα ; glycoprotein Ib ; alpha subunit ; RGD ; arginylglycylaspartic acid ; IgG ; Immunoglobulin G ; PECAM ; platelet endothelial cell adhesion molecule ; VCAM-1 ; vascular cell adhesion molecule 1 ; PAAm ; polya
• 刊名：Advanced Drug Delivery Reviews
• 出版年：2016
• 出版时间：1 April 2016
• 年：2016
• 卷：99
• 期：part_PA
• 页码：97-112
• 全文大小：2164 K

文摘

Particles capable of homing and adhering to specific vascular biomarkers have potential as fundamental tools in drug delivery for mediation of a wide variety of pathologies, including inflammation, thrombosis, and pulmonary disorders. The presentation of affinity ligands on the surface of a particle provides a means of targeting the particle to sites of therapeutic interest, but a host of other factors come into play in determining the targeting capacity of the particle. This review presents a summary of several key considerations in nano- and microparticle design that modulate targeted delivery without directly altering epitope-specific affinity. Namely, we describe the effect of factors in definition of the base carrier (including shape, size, and flexibility) on the capacity of carriers to access, adhere to, and integrate in target biological milieus. Furthermore, we present a summary of fundamental dynamics of carrier behavior in circulation, taking into account interactions with cells in circulation and the role of hemodynamics in mediating the direction of carriers to target sites. Finally, we note non-affinity aspects to uptake and intracellular trafficking of carriers in target cells. In total, recent findings presented here may offer an opportunity to capitalize on mitigating factors in the behavior of ligand-targeted carriers in order to optimize targeting.