摘要:
Methods of using inhibitors of Goodpasture Antigen Binding Protein for inhibiting mesenchymal phenotype after epithelial-to-mesenchymal transition (EMT), treating an invasive tumor, and detecting EMT in a tissue are described.
摘要:
The invention refers to a nanoparticle comprising (i) a core comprising a first population of quantum dots (QDs) embedded in silica, (ii) a shell comprising a second population of QDs embedded in silica, (iii) at least one biomolecule selected from a peptide, a nucleic acid, a carbohydrate or a lipid which comprises a cleavage site that is susceptible of being cleaved by a hydrolytic enzyme, said biomolecule being bound to the surface of the shell through a moiety, and (iv) a photoluminescent label for each biomolecule, wherein the label is bound to the part of the biomolecule which detaches from the nanoparticle after cleavage of said biomolecule by a hydrolytic enzyme, wherein the first and second QD populations have different maximum photoluminescence emission wavelengths, and only the second QD population is susceptible of producing Forster resonance energy transfer (FRET) with the photoluminescent label.
摘要:
The present invention relates to a method for detecting molecules. The method employs: at least two primary antibodies, wherein the first primary antibody binds to a first site on a molecule and the second primary antibody binds to a second site on a molecule, wherein the second site is different from the first site and wherein the first and second primary antibodies are immunologically distinct; at least two secondary antibodies, wherein the first secondary antibody is labelled with a fluorescence resonance energy transfer (FRET) donor and binds to the first primary antibody; and the second secondary antibody is conjugated or fused to an enzyme and binds the second primary antibody, wherein the first secondary antibody does not bind the second primary antibody and the second secondary antibody does not bind the first primary antibody; a conjugate comprising a FRET acceptor and a substrate specific for the enzyme, wherein when the substrate reacts with the enzyme, an activated conjugate forms, which activated conjugate binds to electron rich moieties on a molecular surface adjacent to the enzyme; wherein the method comprises: contacting a sample with the at least two primary antibodies; contacting the sample with the at least two secondary antibodies; performing a wash step; contacting the sample with the conjugate; and detecting any FRET signal generated by the FRET acceptor.
摘要:
La présente invention porte sur un procédé de détection et/ou d'identification spécifique de bactéries productrices de carbapénémases de type OXA-48 dans un échantillon biologique, comprenant les étapes consistant à: a)mettre en contact l'échantillon biologique susceptible de contenir lesdites bactéries avec un milieu réactionnel comprenant au moins un substrat chromogène permettant de détecter une activité enzymatique, et de la témocilline à une concentration supérieure ou égale à 150 mg/L, de préférence comprise entre 200 et 500 mg/L, b)incuber l'ensemble de façon à permettre la croissance des bactéries, et c)détecter les souches correspondant aux bactéries productrices de carbapénémases de type OXA-48. L'invention porte également sur un milieu de culture tel que mis en œuvre à l'étape a).
摘要:
The invention provides a device for determining the type of protein in a liquid, the device comprising (a) an immobilized ATP dependent protease based molecular transporter machine configured to guide a protein that is functionalized with labels through a detection area of a detector, (b) said detector, configured to detect a signal as function of the labels of the labelled amino acids, (c) a processor unit, configured to identify from the detector signal a sequence of amino acids of the functionalized protein, wherein the processor unit is further configured to compare the identified sequence of amino acids with the occurrence of such sequence in a database of proteins and to identify the type of protein.
摘要:
The present invention provides a method using immunoassay devices to differentiate infection with HIV-2 from infection with both HIV-1 and HIV-2 in a subject.
摘要:
The present invention concerns methods and compositions for screening primary hybridoma cultures to generate monoclonal antibodies that are useful in a variety of methods, including for in situ cellular imaging by immunocytochemical assays or in vivo applications, for example. Embodiments of the methods concern the use of automated high-throughput immunofluorescence (for example) to identify subcellular in vivo patterns that are expected based on the antigen or that may be unforeseen.
摘要:
The present invention provides novel methods for determining the presence or amount of a hydrolytic enzyme in a sample, based on novel substrates for the enzymes, and also provides compositions and methods that provide highly sensitive assay methods for such hydrolytic enzymes.