申请人:FUJIFILM Corporation
公开号:US20220273817A1
公开(公告)日:2022-09-01
An object of the present invention is to provide a lipid composition capable of achieving excellent nucleic acid delivery for a wide variety of nucleic acids. According to the present invention, there is provided a lipid composition containing a first lipid which is a lipid represented by Formula (1) or a salt thereof, sterols, and nucleic acid, in which a ratio of the number of moles of the first lipid in the lipid composition to the number of moles of sterols in the lipid composition is 0.300 or more and less than 1.299.
In the formula, X represents —NR
1
— or —O—, R
1
represents a hydrogen atom, a hydrocarbon group, or the like, R
2
and R
3
each independently represent a hydrogen atom, a hydrocarbon group, or the like, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, and R
12
each independently represent a hydrogen atom or an alkyl group,
groups in any one or more pairs among R
4
and R
5
, R
10
and R
5
, R
5
and R
12
, R
4
and R
6
, R
5
and R
6
, R
6
and R
7
, R
6
and R
10
, R
12
and R
7
, and R
7
and R
8
may be linked to each other to form a 4- to 7-membered ring which may contain an O atom, a, b, c, and d are each independently represent an integer of 0 to 3, a+b is 1 or more, and c+d is 1 or more.
本发明的目的是提供一种脂质组合物,能够实现对各种核酸的优异递送。根据本发明,提供了一种脂质组合物,其中包含第一脂质,该脂质是由式(1)或其盐所代表的脂质,固醇和核酸,其中第一脂质的摩尔数与固醇的摩尔数之比为0.300或更多,但小于1.299。在公式中,X代表—NR1—或—O—,R1代表氢原子、烃基或类似物,R2和R3各自独立地代表氢原子、烃基或类似物,R4、R5、R6、R7、R8、R9、R10、R11和R12各自独立地代表氢原子或烷基,在R4和R5、R10和R5、R5和R12、R4和R6、R5和R6、R6和R7、R6和R10、R12和R7以及R7和R8中的任意一对中,可以将其相互连接以形成4至7个成员的环,该环中可以含有一个O原子,a、b、c和d各自独立地代表0至3的整数,a+b为1或更多,c+d为1或更多。