Effect of density-gradients on the binding of photosensitizing agents to plasma proteins.
Effect of density-gradients on the binding of photosensitizing agents to plasma proteins.
复制标题
密度梯度对光敏剂与血浆蛋白结合的影响。
DOI:
10.1016/1357-2725(95)00015-h
复制
发表时间:
1995
期刊:
影响因子:
--
通讯作者:
Kessel,D
中科院分区:
文献类型:
--
作者:
Woodburn,K;Kessel,D
The binding of photosensitizing agents to low-density lipoprotein is considered an important factor in tumor localization. We examined the affinity of a group of photosensitizers, varying in charge and hydrophobicity, for LDL, under conditions designed to determine whether the high salt concentration involved in conventional KBr gradients affected the results. Density-gradients containing KBr vs D2O were evaluated; the latter can delineate VLDL and LDL from other plasma components, while the KBr gradient readily resolved VLDL, LDL, HDL and albumin. Distribution of the photosensitizers to plasma fractions was assessed, along with the effect of Cremophor EL, an emulsifier used for formulation of water-insoluble drugs. Both the D2O and KBr gradients provided similar results with regard to the affinity of anionic, neutral or cationic photosensitizers for LDL. The use of Cremophor EL for drug formulation was associated with an altered electrophoretic lipoprotein profile. In some cases, affinity of CRM-solubilized sensitizers for plasma components varied with the density-gradient employed. The high salt concentration used in density-gradient fractionation had little effect on the affinity of photosensitizing agents to low-density lipoprotein but may introduce artifacts when emulsifiers are used in drug formulation.
登录
查看更多内容
影响因子:
6.5
作者:
C. Hallberg;M. Haden;M. Bergström;G. Hanson;K. Pettersson;C. Westerlund;G. Bondjers;A. Ostlund;G. Camejo
通讯作者:
G. Camejo
影响因子:
11.2
作者:
Morgan,AR;Garbo,GM;Keck,RW;Selman,SH
通讯作者:
Selman,SH
DOI:
10.1016/1011-1344(93)06968-9
发表时间:
1994-03-01
影响因子:
5.4
作者:
WOODBURN, K;KESSEL, D
通讯作者:
KESSEL, D
影响因子:
8.8
作者:
Kongshaug, M;Moan, J;Brown, S B
通讯作者:
Brown, S B
DOI:
10.1016/s0009-8981(05)80008-7
发表时间:
1992
期刊:
Clinica chimica acta; international journal of clinical chemistry
影响因子:
--
作者:
Sykes,E;Meany,M;Schulz,V;Kessel,D
通讯作者:
Kessel,D