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    • 66. 发明公开
    • TAGGED EPITOPE PROTEIN TRANSPOSABLE ELEMENT
    • 转座元件,表位标记的蛋白ENCODED
    • EP1194165A1
    • 2002-04-10
    • EP00937880.3
    • 2000-05-26
    • Oregon Health Sciences University
    • HEFFRON, Fred, L.PARKER, David, C.ELLEFSON, Dolph, D.
    • A61K39/04A61K39/112A61K39/12A61K39/02
    • C07K14/70539A61K39/0011A61K39/12A61K39/21C12N15/1034C12N15/63C12N2740/16034C12Q1/689Y02A50/412
    • A transposable element is provided that as a 3' and a 5' end. The transposable element includes a 5' recombining site 5' of a nucleic acid sequence encoding a selectable marker, a 3' recombining site 3' of the nucleic acid sequence encoding a selectable marker, a nucleic acid sequence encoding and MHC epitope 5' to the 5' recombining site or 3' to the 3' recombining site, and an insertion end comprising an inverted repeat sequence sufficient for integration of the transposable element at the 5' and the 3' end of the transposable element. In one embodiment, a transposable element is provided that has a 5' and a 3' end. The transposable element includes a 5' loxP sequence 5' of a nucleic acid encoding a selectable marker, a 3' loxP sequences 3' of a nucleic acid encoding the selectable marker, an MHC epitope 5' to the 5' loxP sequences or 3' of the 3' loxP sequence, an insertion end at the 5' end of the transposable element, and an insertion end at the 3' of the transposable element. A method is provided for detecting an antigenic epitope of a pathogen by infecting a pathogenic cell with a transposable element of the invention, wherein the infection results in the integration of the transposable element in a nucleic acid sequence of the bacterial cell; transforming the pathogenic cell with a vector comprising a transposase; contacting a eukaryotic cell that can internalize the pathogenic cell with the pathogenic cell infected with the transposable element; contacting the eukaryotic cell with a specific binding partner that recognizes the MHC epitope; identifying the labeled eukaryotic cells and externalizing the bacteria cell. The externalized bacterial cell may be grown to produce a population of bacterial cells, and the nucleic acid sequence of the bacterial cell that has the integrated transposable element is identified. This nucleic acid sequence encodes the antigenic element of the panthogen. A method is also provided for generating a carrier vaccine by infecting a bacterial cell with the transposable element of the invention, wherein the transposable further comprises an antigen associated with a disease operably linked to the MHC epitope of the transposable element. The infection of the bacteria results in the integration of the transposable element in a nucleic acid sequence of the bacterial cell. The pathogenic cell is then internalized into a eukaryotic cell and the eukaryotic cell is exposed to a specific bindind agent that recognizes the MHC epitope, identifying labeled eukaryotic cells are identified and lysed to externalize the bacteria cell, which is cultured to produce a population of bacterial cells. The nucleic acid sequence of the bacterial cell that has the integrated transposable element is identified, wherein the nucleic acid sequence encodes the antigenic element of the pathogen. The graving bacterial cell identified, and may be used as the carrier vaccine.
    • 70. 发明公开
    • OPIOID ANTAGONISTS AND METHODS OF THEIR USE
    • 安东尼·安德烈·安德鲁
    • EP0843726A1
    • 1998-05-27
    • EP96928209.0
    • 1996-08-12
    • OREGON HEALTH SCIENCES UNIVERSITY
    • GRISEL, Judith, E.MOGIL, Jeffrey, S.GRANDY, David, K.BUNZOW, James, R.CIVELLI, OlivierREINSCHEID, Rainer, KlausNOTHACKER, Hans-PeterMONSMA, Frederick, James
    • C12N15A61K38A61K51A61P25A61P39C07K14C12N5
    • C07K14/665A61K38/00
    • The present invention relates to a novel mammalian anti-opioid receptor protein (OFQR), peptide ligands (such as OFQ) that bind to OFQR, and methods of using the OFQ peptide and analogues to reverse the physiologic effects of opiates such as morphine. The isolation, characterization and pharmacological use of the endogenous peptide ligand is described. A particular embodiment of the OFQ peptide is a heptadecapeptide having an FGGF aminoterminal motif. The peptide specifically binds to an OFQ receptor protein heterologously expressed in mammalian cells. The peptide does not bind with high affinity to ν, δ or λ receptors, but it antagonizes opioid mediated effects (such as analgesia and hypothermia) without increasing nociceptive sensitivity. Tyrosine substitution variants of the peptide ligand specifically bind to the opioid receptor and can be radioiodinated. Also provided are methods of making such peptide ligands and OFQR antagonists, and methods of using the ligands for diagnostic and therapeutic uses and for the identification of other naturally-occurring or synthetic opioid receptor ligands.
    • 本发明涉及一种新型哺乳动物抗阿片类受体蛋白(OFQR),与OFQR结合的肽配体(如OFQ),以及使用OFQ肽和类似物逆转阿片剂如吗啡的生理作用的方法。 描述了内源肽配体的分离,表征和药理学应用。 OFQ肽的具体实施方案是具有FGGF氨基末端基序的十七肽。 该肽特异性结合在哺乳动物细胞中异源表达的OFQ受体蛋白。 肽不能以高亲和力结合到mu,δ或κ受体,但它拮抗阿片样物质介导的作用(如镇痛和低体温),而不增加伤害敏感性。 肽配体的酪氨酸取代变体特异性结合阿片受体并可以放射性碘化。 还提供了制备这种肽配体和OFQR拮抗剂的方法,以及使用该配体进行诊断和治疗用途以及鉴定其它天然存在或合成的阿片受体配体的方法。