Polyamino acids functionalized by at least one hydrophobic group and the therapeutic application thereof
申请人:Angot Stephanie
公开号:US20070160568A1
公开(公告)日:2007-07-12
The invention relates to novel materials based on biodegradable polyamino acids that are useful for vectorizing active principle/s (AP). The aim of the invention is to supply a new polymeric raw material that is used for vectorizing AP and optimally fulfills all requirements concerning biocompatibility, biodegradability, the ability to be easily associated with numerous active principles or solubilize said active principles and to release the active principles in vivo. Said polymers can also be readily and economically transformed into particles vectorizing active principles according to the grafting rate of the hydrophobic groups, said particles being able to form stable aqueous colloidal suspensions. Said aim is achieved by the inventive amphiphile polyamino acids comprising aspartic and/or glutamic units that carry grafts which encompass at least one hydrophobic unit and are linked to the aspartic and/or glutamic units via a rotula containing two amide functions, more particularly via a spacer of the lysine or ornithine type. Said amide functions ensure better stability during hydrolysis than comparable products known in prior art. The invention also relates to new pharmaceutical, cosmetic, dietetic, or phytosanitary compositions based on the inventive polyamino acids.
该发明涉及基于可生物降解的聚氨基酸的新型材料,该材料用于载荷活性成分(AP)。该发明的目的是提供一种新的聚合原料,用于载荷AP,并且在生物相容性、可生物降解性、易于与许多活性成分或溶解这些活性成分以及在体内释放这些活性成分方面都能够最佳地满足所有要求。所述聚合物还可以根据疏水基团的接枝率轻松且经济地转化为载荷活性成分的颗粒,这些颗粒能够形成稳定的水胶体悬浮液。该目的通过包含天冬氨酸和/或谷氨酸单元的创新性两性聚氨基酸实现,这些单元携带涵盖至少一个疏水单元的接枝,并且通过含有两个酰胺功能的转子,更具体地说,通过赖氨酸或鸟氨酸类型的间隔物与天冬氨酸和/或谷氨酸单元连接。所述酰胺功能确保在水解过程中比先前已知的类似产品具有更好的稳定性。该发明还涉及基于创新性聚氨基酸的新药物、化妆品、饮食或植物保健产品组合。