Cellular distribution of polymer particles bearing various densities of carbohydrate ligands.

Cellular distribution of polymer particles bearing various densities of carbohydrate ligands.
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带有不同密度碳水化合物配体的聚合物颗粒的细胞分布。

DOI:
10.1163/156856294x00446
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发表时间:
1994
期刊:
Journal of biomaterials science. Polymer edition
影响因子:
--
通讯作者:
T. Akaike
T. Akaike
中科院分区:
--
文献类型:
--
作者:
N. Adachi;A. Maruyama;T. Ishihara;T. Akaike

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相似文献

研究了糖配体对纳米级颗粒(纳米颗粒)细胞结合和内化的密度效应。聚(乙烯基苄基-β-D-内酯酰胺)(PVLA),一种β-半乳糖携带苯乙烯均聚物,被用作肝细胞上脱唾液酸糖蛋白受体的模型配体。为了控制颗粒上的表面配体密度,将PVLA与聚(乙烯基苄基-D-乙酰胺)(PVGA)(一种不含β-半乳糖的PVLA类似物)混合,并且将它们的混合物用作表面涂层。配体密度低的颗粒比配体密度高的颗粒与肝细胞结合更多。配体的表面密度显著影响细胞分布。大多数的颗粒承载高密度的配体被发现在细胞内,而低配体密度的颗粒被发现在肝细胞的质膜表面上。这些结果表明表面上的高密度配体需要肝细胞通过受体介导的内吞作用迅速内化颗粒,而表面上的低密度配体不足以内化,但允许颗粒结合在细胞表面上。这些发现使我们能够通过控制表面上的配体密度来调节颗粒的细胞分布。
The density effect of carbohydrate-ligands on nanometer-order particles (nanoparticles) upon cellular binding and internalization was investigated. Poly(vinylbenzyl-beta-D-lactonamide) (PVLA), a beta-galactose-carrying styrene homopolymer, was employed as a model ligand for the asialoglycoprotein receptors on hepatocytes. In order to control the surface ligand densities on the particles, PVLA was mixed with poly(vinylbenzyl-D-gluconamide) (PVGA), a PVLA analog without beta-galactose, and their mixtures were used as surface coatings. The particles with low ligand densities associated more with hepatocytes than high ligand density particles. The surface density of the ligand considerably influenced the cellular distribution. Most of the particles bearing high densities of ligands were found inside the cells, whereas particles with low ligand densities were found on the plasma membrane surface of the hepatocytes. These results were indicative of high densities of ligands on the surface requiring hepatocytes to internalize the particles promptly by receptor-mediated endocytosis, while low densities of ligands on the surface was not sufficient to internalize, but allowed particles to bind on the cell surface. These findings enabled us to regulate cellular distributions of particles by controlling ligand density on the surface.
确定了三触角糖肽与大鼠肝细胞脱唾液酸糖蛋白受体之间结合的几何结构。
DOI: --
发表时间: 1990
期刊: The Journal of biological chemistry
影响因子: --
作者:
Rice,KG;Weisz,OA;Barthel,T;Lee,RT;Lee,YC
通讯作者: Lee,YC
DOI: --
发表时间: 1983
期刊: The Journal of biological chemistry
影响因子: --
作者:
Schreiber,AB;Libermann,TA;Lax,I;Yarden,Y;Schlessinger,J
通讯作者: Schlessinger,J
DOI: --
发表时间: 1983
期刊: The Journal of biological chemistry
影响因子: --
作者:
Mitchell,AP;Magasanik,B
通讯作者: Magasanik,B
DOI: 10.1073/pnas.87.9.3579
发表时间: 1990-05-01
影响因子: 11.1
作者:
INGBER, DE
通讯作者: INGBER, DE
DOI: 10.1073/pnas.88.17.7849
发表时间: 1991-09-01
影响因子: 11.1
作者:
SCHWARTZ, MA;LECHENE, C;INGBER, DE
通讯作者: INGBER, DE