Product-delivering liposomes specifically target hair follicles in histocultured intact skin.

Product-delivering liposomes specifically target hair follicles in histocultured intact skin.
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产品递送脂质体专门针对组织培养的完整皮肤中的毛囊。

DOI:
10.1007/bf02631046
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发表时间:
1992
期刊:
In vitro cellular & developmental biology : journal of the Tissue Culture Association
影响因子:
--
通讯作者:
Hoffman,RM
Hoffman,RM
中科院分区:
--
文献类型:
--
作者:
Li,L;Margolis,LB;Lishko,VK;Hoffman,RM

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Fig. 1. A,用钙黄绿素包埋的卵磷脂脂质体(液晶)处理的小鼠皮肤组织培养物。注意到绿色荧光染料优先进入毛囊的高效率递送。B,用绿色荧光亲水性染料钙黄绿素处理的小鼠皮肤组织培养物,不含脂质体,其浓度与图1A中包埋在脂质体中的浓度相同(对照)。注意,绿色染色非常弱,并且染色剂没有优先递送到皮肤结构。C,D,用荧光标记的凝胶二棕榈酰磷脂酰胆碱脂质体处理的小鼠皮肤组织培养物。注意脂质体相关标记物在毛囊表面的优先定位。C,钙黄绿素标记的脂质体; D,NBD-磷脂酰乙醇胺标记的脂质体。通过共聚焦扫描激光显微镜获得的图像。放大倍数X500。滤泡; 2)不同类型的脂质体可用于将包封的物质递送到毛囊内或毛囊表面:3)共聚焦激光显微镜是一种高效的研究毛囊的仪器,在组织培养的皮肤标本中用荧光染料染色;(4)历史文化-脂质体系统与共聚焦扫描激光显微镜和其它分析手段如毛发生长本身的测量(Li等,1992 a、1992 c)可以作为干扰毛发周期的药物(例如毛发生长刺激剂)的有效筛选。
FIG. 1. A, Mouse skin histocultures treated with calcein-entrapped egg phosphatidylcholine liposomes (liquid-crystalline). Note the high efficiency of the delivery of the green fluorescent dye preferentially into hair follicles. B, Mouse skin histocultures treated with the green fluorescent hydrophilic dye calcein without liposomes which is at the same concentration as was entrapped into the liposomes in Figure 1 A (control). Note that the green staining is very weak and there is no preferential delivery of the stain to skin structures. C, D, Mouse skin histocultures treated with fluorescent-labeled gel dipalmitoylphospatidylcholine liposomes. Note the preferential localization of the liposome-associated markers on the surface of hair follicles. C, Calcein-labeled liposomes; D, NBD-phosphatidylethanolamine labeled liposome. Images obtained by confocal scanning laser microscopy. Magnification X500. follicles; 2) depending of the goal, different type of liposomes can be used to deliver entrapped substances into the follicle or to its surface; 3) confocal laser microscopy is a highly efficient instrument to study hair follicles in the histocultured skin specimens stained with fluorescent dyes; and 4) the histoculture-liposome system coupled with confocal scanning laser microscopy and other means of analysis such as measurement of hair growth itself (Li et al., 1992a, 1992c) could serve as an effective screen for agents which perturb the hair cycle such as hair-growth stimulators.
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