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    • 4. 发明授权
    • Fused liposome and acid induced method for liposome fusion
    • 融合脂质体和酸诱导的脂质体融合方法
    • US5283122A
    • 1994-02-01
    • US836125
    • 1992-02-14
    • Leaf HuangJerome Connor
    • Leaf HuangJerome Connor
    • A61K9/127C12N15/88
    • A61K9/1272C12N15/88Y10S436/829Y10T428/2984
    • Liposomes containing phosphatidylethanolamine, palmitoyl homocysteine or oleic acid or palmitic acid, fuse rapidly when the pH of the medium is reduced below 7. Liposome fusion was measured by (a) mixing of the liposomal lipids as shown by resonance energy transfer, (b) gel filtration and (c) electron microscopy. The presence of phosphatidylethanolamine or acid addition esters thereof in the liposomes greatly enhances fusion; whereas the presence of phosphatidylcholine inhibits fusion. During fusion of liposomes containing phosphatidylethanolamine:palmitoyl homocysteine (8:2), almost all of the encapsulated calcein is released. Inclusion of cholesterol (40%) in the liposomes substantially decreases leakage without impairing fusion. Those pH sensitive liposomes are fused to deliver biologically active molecules such as DNA, into living cells.
    • 含有磷脂酰乙醇胺,棕榈酰高半胱氨酸或油酸或棕榈酸的脂质体当培养基的pH值降至7以下时迅速融合。脂质体融合通过(a)如共振能量转移所示脂质体脂质的混合,(b)凝胶 过滤和(c)电子显微镜。 磷脂酰乙醇胺或其酸加成酯在脂质体中的存在大大增强了融合; 而磷脂酰胆碱的存在抑制融合。 在含有磷脂酰乙醇胺的脂质体融合过程中,棕榈酰同型半胱氨酸(8:2)几乎全部被包裹的钙黄绿素释放出来。 在脂质体中包含胆固醇(40%)可显着减少渗漏而不损害融合。 将这些pH敏感的脂质体融合以将生物活性分子例如DNA递送到活细胞中。
    • 5. 发明授权
    • Fused liposome and acid induced method for liposome fusion
    • 融合脂质体和酸诱导的脂质体融合方法
    • US4789633A
    • 1988-12-06
    • US602177
    • 1984-04-19
    • Leaf HuangJerome Connor
    • Leaf HuangJerome Connor
    • A01H1/00A01H5/00A61K9/00A61K9/127B01J13/02C12N5/00C12N5/02C12N5/10C12N15/00C12N15/88A61J5/00B32B5/16
    • A61K9/127A61K9/1272C12N15/88Y10T428/2984
    • Liposomes containing phosphatidylethanolamine, palmitoyl homocysteine or oleic acid or palmitic acid, fuse rapidly when the pH of the medium is reduced below 7. Liposome fusion was measured by (a) mixing of the liposomal lipids as shown by resonance energy transfer, (b) gel filtration and (c) electron microscopy. The presence of phosphatidylethanolamine or acid addition esters thereof in the liposomes greatly enhances fusion; whereas the presence of phosphatidylcholine inhibits fusion. During fusion of liposomes containing phosphatidylethanolamine:palmitoyl homocysteine (8:2), almost all of the encapsulate calcein is released. Inclusion of cholesterol (40%) in the liposomes substantially decreases leakage without impairing fusion. Those pH sensitive liposomes are fused to deliver biologically active molecules such as DNA, into living cells.
    • 含有磷脂酰乙醇胺,棕榈酰高半胱氨酸或油酸或棕榈酸的脂质体当培养基的pH值降至7以下时迅速融合。脂质体融合通过(a)如共振能量转移所示脂质体脂质的混合,(b)凝胶 过滤和(c)电子显微镜。 磷脂酰乙醇胺或其酸加成酯在脂质体中的存在大大增强了融合; 而磷脂酰胆碱的存在抑制融合。 在含有磷脂酰乙醇胺的脂质体融合过程中,棕榈酰同型半胱氨酸(8:2)几乎全部释放出钙黄绿素。 在脂质体中包含胆固醇(40%)可显着减少渗漏而不损害融合。 将这些pH敏感的脂质体融合以将生物活性分子例如DNA递送到活细胞中。
    • 9. 发明申请
    • METHODS AND COMPOSITIONS FOR THE DELIVERY OF BIOACTIVE COMPOUNDS
    • 用于提供生物化合物的方法和组合物
    • US20110117026A1
    • 2011-05-19
    • US12993424
    • 2009-05-01
    • Yu-Chen TsengSang Kyoon KimMichael HackettSumio ChonoLeaf HuangShyh-dar Li
    • Yu-Chen TsengSang Kyoon KimMichael HackettSumio ChonoLeaf HuangShyh-dar Li
    • A61K9/127C12Q1/02C12N5/071A61K31/713A61K49/00A61P35/00
    • C07C279/10A61K9/1271A61K9/1272A61K47/6911C07C279/20C12N15/88
    • The present invention provides compositions comprising delivery systems comprising a lipid vehicle, a bioactive compound, and a polyanionic carrier macromolecule that is not a carrier polynucleotide, wherein the lipid vehicle encapsulates the polynucleotide of interest and the polyanionic carrier macromolecule, and wherein the delivery system is essentially free of carrier polynucleotides. Compositions also include delivery systems comprising a lipid vehicle and a bioactive agent, wherein the lipid vehicle encapsulates the bioactive agent, and wherein the lipid vehicle comprises a covalent bilayer or a core supported bilayer comprising polycationic lipids. Other compositions provided herein comprise a delivery system comprising a polypeptide of interest and a means for delivering the polypeptide into a cell. Also provided herein are methods for making the delivery systems, methods for delivering bioactive compounds, methods for treating a disease or unwanted condition in a subject with the delivery systems, and methods for detecting apoptosis in a cell.
    • 本发明提供包含递送系统的组合物,其包含脂质载体,生物活性化合物和不是载体多核苷酸的聚阴离子载体大分子,其中所述脂质载体包封感兴趣的多核苷酸和聚阴离子载体大分子,并且其中递送系统是 基本上不含载体多核苷酸。 组合物还包括包含脂质载体和生物活性剂的递送系统,其中所述脂质载体包封所述生物活性剂,并且其中所述脂质载体包含共价双层或包含聚阳离子脂质的核心负载双层。 本文提供的其它组合物包含包含感兴趣多肽的递送系统和用于将多肽递送至细胞的手段。 本文还提供了制备递送系统的方法,用于递送生物活性化合物的方法,用于用递送系统治疗受试者的疾病或不需要的病症的方法,以及用于检测细胞凋亡的方法。