摘要:
A lipid particle can include a cationic lipid. The cationic lipid can include one or more hydrophobic tails, which can include one or more sites of unsaturation. The sites of unstaturation can include cycloalkyl groups, e.g., cyclopropyl, cyclobutyl, cyclopentyl, or cyclohexyl groups. The lipid particle is suitable for delivering an active agent.
摘要:
A lipid particle can include a plurality of cationic lipids, such as a first cationic lipid and a second cationic lipid. The first cationic lipid can be selected on the basis of a first property and the second cationic can be selected on the basis of a second property. The first and second properties are complementary. The attributes of the lipid particle can reflect the selected properties of the cationic lipids, and the complementary nature of those properties.
摘要:
The present invention provides compositions and methods for the delivery of therapeutic agents to cells. In particular, these include novel lipids and nucleic acid-lipid particles that provide efficient encapsulation of nucleic acids and efficient delivery of the encapsulated nucleic aicd to cells in vivo. The compositions of the present invention are highly potent, thereby allowing effective knock-down of specific tagrget protein at relatively low doses. The compositions and methods of the present invention are less toxic and provide a greater therapeutic index compared to compositions and methods previously known in the art.
摘要:
In one embodiment, the invention features a process for preparing ligand conjugated oligonucleotides comprising a step of contacting a nucleoside or oligonucleotide containing an alkyne moiety with ligand containing an azide moiety in the presence of a solid supported copper catalyst of formula A, B, C or D.
摘要翻译:在一个实施方案中,本发明的特征在于制备配体缀合的寡核苷酸的方法,其包括在式A,B,C的固体负载的铜催化剂存在下使含有炔部分的核苷或寡核苷酸与含有叠氮化物部分的配体接触的步骤,或 D.
摘要:
In one embodiment, the invention features a process for preparing ligand conjugated oligonucleotides comprising a step of contacting a nucleoside or oligonucleotide containing an alkyne moiety with ligand containing an azide moiety in the presence of a solid supported copper catalyst of formula A, B, C or D.
摘要翻译:在一个实施方案中,本发明的特征在于制备配体缀合的寡核苷酸的方法,其包括在含有式A,B,C的固体负载型铜催化剂存在下,使含有炔部分的核苷或寡核苷酸与含有叠氮基部分的配体接触的步骤, D.
摘要:
The present invention provides targeting lipids of structure (Cl) L100 - linker - L101, where L100 is a lipid, lipophile, alkyl, alkenyl or alkynyl, L101 is a ligand or - CH2CH2(OCH2CH2)pO(CH2)qCH2-ligand, p is 1-1000, and q is 1-20. In addition, the invention provides compositions and methods for the delivery of therapeutic agents to cells. In particular, these include novel lipids and nucleic acid-lipid particles that provide efficient encapsulation of nucleic acids and efficient delivery of the encapsulated nucleic aicd to cells in vivo.
摘要:
The invention features an improved lipid formulation comprising a cationic lipid of formula (A), a neutral lipid, a sterol and a PEG or PEG-modified lipid, where R1 and R2 are independently alkyl, alkenyl or alkynyl, each can be optionally substituted, and R3 and R4 are independently lower alkyl or R3 and R4 can be taken together to form an optionally subsituted heterocyclic ring. In one embodiment, R1 and R2 are independently selected from oleoyl, pamitoyl, steroyl, linoleyl and R3 and R4 are methyl. Also disclosed are targeting lipids, and specific lipid formulations comprising such targeting lipids.