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    • 2. 发明授权
    • TOXOPLASMA GONDII GLYCOCONJUGATES
    • 弓形虫GLYKOKONJUGATE
    • EP0850244B1
    • 2002-07-31
    • EP96931804.7
    • 1996-09-12
    • Organon Teknika B.V.
    • KOOLEN, Marcus, Josephus, MarieDAMM, Jan, Bas, LouisSTRIEPEN, BorisSCHWARZ, Ralph, T.
    • C07H3/06C07K14/45C12N5/20A61K31/70C07K16/20G01N33/569C12P21/08A61K39/002
    • A61K39/002C07H3/06C07K16/20
    • The present invention relates to a glycoconjugate immunoreactive with Toxoplasma gondii antibodies, (monoclonal) antibodies against these glycoconjugates, and cell lines capable of producing monoclonal antibodies. The invention is further concerned with immunochemical reagents and methods for the detection of T. gondii or antibodies directed agains T. gondii. Furthermore the invention relates to a therapeutic reagent for the inhibition of replication of T. gondii parasites and a method for the production of a live attenuated T. gondii vaccine. It has now been found, and in contrast with earlier publications in this art, that several glycoconjugates are immunoreactive with Toxoplasma gondii specific antibodies comprising a glycan core structure having general formula (I) wherein R1 = Hydrogen, -PO3-CH2-CH2-NH2 (ethanolamine-phosphate), or -PO3-CH2-CH2-NH-X, wherein X = a T. gondii specific antigen; wherein R2 = α-O-R4, α(1-4)-O-anhydromannitol or α(1-4)-O-glucoseamine optionally α(1-6)-linked to the inositol moiety of a phosphatidylinositol membrane anchor; wherein R3 = a monosaccharide moiety, wherein R4 = Hydrogen or -L-R5, wherein L = a bivalent organic radical and R5 = a functional group that allows coupling to a carrier. A preferred embodiment of the monosaccharide moiety is a hexose moiety, more preferred is a glucose moiety, and most preferred is a glucose moiety which is bonded to the GalNAc-moiety by an α-1,4 glycosidic bond. It has been found that the glycoconjugates according to the present invention are particularly suitable for diagnosing T. gondii infected humans.
    • 8. 发明公开
    • Peptides and nucleic acid sequences related to Epstein Barr Virus
    • Epstein-Barr-Virus verwandte Peptide undNukleinsäuresegmente
    • EP1225226A1
    • 2002-07-24
    • EP02075193.9
    • 1993-03-10
    • Organon Teknika B.V.
    • Middeldorp, J.M.
    • C12N15/38C12N5/18C07K14/05C07K16/08C07K16/42G01N33/569G01N33/68
    • C07K16/085C07K14/005C07K2317/34C07K2319/00C07K2319/40C07K2319/61C07K2319/735C12N2710/16222
    • The present invention relates to peptides immunochemically reactive with antibodies to the Epstein-Barr virus (EBV), comprising at least part of the VCA-p18 or VCA-p40 protein, encoded within the EBV open reading frames BFRF3 and BdRF1 respectively, or a functional variant thereof. The invention further relates to nucleic acid sequences encoding these peptides, monoclonal antibodies against these peptides, cell lines capable of producing monoclonal antibodies and anti-idiotype antibodies. The invention also relates to recombinant vector molecules comprising a nucleic acid sequence according to the invention and host cells transformed or transfected with these vector molecules. The invention is further concerned with immunological reagents and methods for the detection of EBV or anti-EBV antibodies and a method for the amplification and detection of Epstein Barr viral nucleic acid.
    • 本发明涉及与Epstein-Barr病毒(EBV)的抗体免疫化学反应的肽,其包含分别编码在EBV开放阅读框BFRF3和BdRF1内的VCA-p18或VCA-p40蛋白的至少一部分,或功能性 其变体。 本发明还涉及编码这些肽的核酸序列,针对这些肽的单克隆抗体,能够产生单克隆抗体的细胞系和抗独特型抗体。 本发明还涉及包含根据本发明的核酸序列和用这些载体分子转化或转染的宿主细胞的重组载体分子。 本发明还涉及用于检测EBV或抗EBV抗体的免疫试剂和方法以及扩增和检测爱泼斯坦巴尔病毒核酸的方法。