申请人:Kyowa Hakko Kirin Co., Ltd.
公开号:EP2792368A1
公开(公告)日:2014-10-22
The present invention provides a lipid nano-particles, which allow nucleic acids to be easily introduced into cells, comprising
a cationic lipid represented by formula (I)
(wherein: R1 and R2 are, the same or different, alkenyl, etc, and X3 is absent or is alkyl, etc,
X1 and X2 are hydrogen atoms, or are combined together to form a single bond or alkylene, and
Y1 is absent or anion,
L1 is a single bond, etc,
R3 is alkyl, etc), and
a cationic lipid represented by formula (II)
(wherein: R9 and R5 are, the same or different, alkenyl, etc, and
X4 and X5 are hydrogen atoms, or are combined together to form a single bond or alkylene, and
X6 is absent or is alkyl, etc,
Y2 is absent or anion,
a and b are, the same or different, 0 to 3, and
L9 is a single bond, etc,
R6 is alkyl, etc,
L2 and L3 are -O-, -CO-O- or -O-CO-), and the like.
本发明提供了一种可将核酸轻松导入细胞的脂质纳米颗粒,它包括
由式(I)表示的阳离子脂质
其中R1和R2是相同或不同的烯基等,X3不存在或为烷基等、
X1 和 X2 为氢原子,或结合在一起形成单键或亚烷基,以及
Y1 不存在或为阴离子、
L1 是单键等、
R3 是烷基等),以及
由式(II)代表的阳离子脂质
(其中:R9 和 R5 是相同或不同的烯基等,以及
X4 和 X5 为氢原子,或结合在一起形成单键或亚烷基,以及
X6 不存在或为烷基等、
Y2 不存在或为阴离子、
a 和 b 相同或不同,0 至 3,以及
L9 是单键等、
R6 为烷基等
L2和L3为-O-、-CO-O-或-O-CO-)等。