Topical delivery of hyaluronic acid into skin using SPACE-peptide carriers.

Topical delivery of hyaluronic acid into skin using SPACE-peptide carriers.
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DOI:
10.1016/j.jconrel.2013.10.007
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发表时间:
2014-01-10
期刊:
Journal of controlled release : official journal of the Controlled Release Society
影响因子:
--
通讯作者:
Mitragotri S
Mitragotri S
中科院分区:
其他
文献类型:
--
作者:
Chen M;Gupta V;Anselmo AC;Muraski JA;Mitragotri S

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大分子向皮肤中的局部渗透受到其低渗透性的限制。在这里,我们报告了使用皮肤穿透肽,空间肽,以增强局部递送的大分子,透明质酸(HA,MW:200-325 kDa)。将肽缀合至磷脂并用于制备醇质体载体系统(直径约110 nm),包封HA。与PBS相比,SPACE-ethosomal系统(SES)在体外将HA渗透到猪皮肤中的能力提高了7.8+/-1.1倍。该系统还增强了HA在体外人皮肤中的渗透,渗透到两个物种皮肤的表皮和真皮深处。使用SKH 1无毛小鼠进行的体内实验也证实了使用递送系统的HA的皮肤渗透增加;与PBS对照相比,发现渗透增强5倍。皮肤中HA的浓度比血液中的浓度高约1000倍;证实了HA输送到皮肤中的局部性质。SPACE-醇质体递送系统提供了一种用于局部递送大分子的制剂,否则这些大分子很难递送到皮肤中。
Topical penetration of macromolecules into skin is limited by their low permeability. Here, we report the use of a skin penetrating peptide, SPACE peptide, to enhance topical delivery of a macromolecule, hyaluronic acid (HA, MW: 200–325 kDa). The peptide was conjugated to phospholipids and used to prepare an ethosomal carrier system (~110 nm diameter), encapsulating HA. The SPACE-ethosomal system (SES) enhanced HA penetration into porcine skin in vitro by 7.8+/−1.1-fold compared to PBS. The system also enhanced penetration of HA in human skin in vitro, penetrating deep into the epidermis and dermis in skin of both species. In vivo experiments performed using SKH1 hairless mice also confirmed increased dermal penetration of HA using the delivery system; a 5-fold enhancement in penetration was found compared to PBS control. Concentrations of HA in skin were about 1000-fold higher than those in blood; confirming the localized nature of HA delivery into skin. The SPACE-ethosomal delivery system provides a formulation for topical delivery of macromolecules that are otherwise difficult to deliver into skin.
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