公开(公告)号：US20220096381A1

公开(公告)日：2022-03-31

申请号：US17457793

申请日：2021-12-06

Applicant: FUJIFILM Corporation

Inventor： Taisuke ENDO ,  Shun KANEUMI ,  Masaki NORO ,  Shintaro TANABE ,  Masahiko YAMAMOTO

IPC: A61K9/127 ,  A61K31/7105 ,  A61K47/10 ,  A61K47/28 ,  A61K47/18 ,  A61K47/24

Abstract: An object of the present invention is to provide a lipid composition making it possible to achieve excellent delivery of nucleic acids. According to the present invention, there is provided a lipid composition containing a lipid represented by Formula (1) or a salt thereof, a nonionic lipid, a lipid having a nonionic hydrophilic polymer structure, and a nucleic acid, in which the lipid composition contains or does not contain a zwitterionic lipid, and in a case where (A) represents a molar ratio in percentage of the lipid represented by Formula (1) or a salt thereof to total lipids constituting the lipid composition and (B) represents a molar ratio in percentage of the zwitterionic lipid to total lipids constituting the lipid composition, (A) and (B) satisfy 40

公开(公告)号：US20220273817A1

公开(公告)日：2022-09-01

申请号：US17743584

申请日：2022-05-13

Applicant: FUJIFILM Corporation

Inventor： Takahiro SEKIGUCHI ,  Taisuke ENDO ,  Shun KANEUMI ,  Masaki NORO ,  Shintaro TANABE ,  Masahiko YAMAMOTO

IPC: A61K48/00 ,  A61K47/28 ,  A61K47/10 ,  A61K47/14

Abstract: 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 —NR1— or —O—, R1 represents a hydrogen atom, a hydrocarbon group, or the like, R2 and R3 each independently represent a hydrogen atom, a hydrocarbon group, or the like, R4, R5, R6, R7, R8, R9, R10, R11, and R12 each independently represent a hydrogen atom or an alkyl group, groups in any one or more pairs among R4 and R5, R10 and R5, R5 and R12, R4 and R6, R5 and R6, R6 and R7, R6 and R10, R12 and R7, and R7 and R8 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.