[EN] SELF-IMMOLATIVE LINKERS CONTAINING MANDELIC ACID DERIVATIVES, DRUG-LIGAND CONJUGATES FOR TARGETED THERAPIES AND USES THEREOF<br/>[FR] LIEURS AUTO-IMMOLABLES CONTENANT DES DÉRIVÉS D'ACIDE MANDÉLIQUE, CONJUGUÉS MÉDICAMENT-LIGAND POUR THÉRAPIES CIBLÉES, ET LEURS UTILISATIONS
申请人:ASANA BIOSCIENCES LLC
公开号:WO2015038426A1
公开(公告)日:2015-03-19
The invention provides a therapeutic drug and targeting conjugate, pharmaceutical compositions containing these conjugates in pharmaceutical composition, and uses of these conjugates in anti-neoplastic and other therapeutic regimens. Also provided are novel intermediates thereof. The conjugates provide a therapeutic drug fragment or prodrug fragment bound to a targeting moiety via a linker which comprises a substrate cleavable by a protease such as Cathepsin B. The targeting moiety is a ligand which targets a cell surface molecule, such as a cell surface receptor on an anti-neoplastic cell. The ligand may function solely as a targeting moiety or may itself have a therapeutic effect. Following administration of the therapeutic drug and targeting conjugate of formula I and exposure of the conjugate to the protease specific for the substrate, the linker is cleaved and the targeting moiety is separated from the conjugate, which causes the drug fragment or prodrug fragment to convert to the drug or prodrug. The recited conjugates are useful in anti-neoplastic therapies. Also provided are methods of making the therapeutic drug and targeting conjugates and intermediates thereof, and kits comprising the therapeutic drug and targeting conjugates.
Antibodies to symmetrically dimethylated arginine analytes and use thereof
申请人:Ark Diagnostics, Inc.
公开号:US11149093B2
公开(公告)日:2021-10-19
Disclosed is an antibody which binds to a symmetrically dimethylated arginine analyte that can be used to detect a symmetrically dimethylated arginine analyte in a sample, such as in a homogeneous enzyme immunoassay method.
Water-soluble rylene dyes, methods for preparing the same and uses thereof as fluorescent labels for biomolecules
申请人:Max-Planck-Gesellschaft zur Förderung der
Wissenschaften e.V.
公开号:EP2062944A1
公开(公告)日:2009-05-27
The present invention relates to novel rylene diimide compounds, a method for preparing said compounds, the use of said compounds as fluorescent label for biomolecules as well as a method for purifying bioconjugates.
Formation of an intramolecular cross-link in enzyme donor polypeptide fragments of .beta.-galactosidase, thereby forming a cyclic enzyme donor which is hindered from complementation with an enzyme acceptor fragment to form active of .beta.-galactosidase. The cyclic enzyme donor can be linearized by cleaving to restore complementation ability. Assays in which such cyclic enzyme donors are linearized by specific analytes are disclosed, as well as novel homobifunctional bis-maleimido cross-linking agents of the formula ##STR1## wherein R is hydroxy or acetate.
Method for the selective and quantitative functionalization of immunoglobulin FAB fragments, conjugate compounds obtained with the same and composition thereof
申请人:Bracco Imaging, S.P.A.
公开号:EP1900379A2
公开(公告)日:2008-03-19
The invention provides chemical conjugates between an immunoglobulin Fab fragment and molecular entities imparting diagnostic or therapeutic utility, whereby the only sites of conjugation on the Fab fragment are one or both of the sulfhydryl groups deriving from the selective and quantitative reduction of the inter-chain disulfide bond of said Fab fragment and whereby said molecular entities imparting diagnostic or therapeutic utility have at least one free sulfhydryl-reactive group, characterized in that the conjugation stoichiometric molar ratio molecular entity to Fab fragment is in the range from 0.95 to 1.05 or in the range from 1.95 to 2.05.
The invention also provides a process for preparing said conjugates and pharmaceutical compositions thereof.
本发明提供了免疫球蛋白 Fab 片段与具有诊断或治疗作用的分子实体之间的化学共轭物,其中 Fab 片段上的唯一共轭位点是一个或两个巯基,这些巯基来自所述 Fab 片段的链间二硫键的选择性定量还原,并且所述具有诊断或治疗作用的分子实体具有至少一个游离的巯基反应基团,其特征在于共轭化学计量摩尔比分子实体与 Fab 片段在 0.95至1.05或在1.95至2.05的范围内。
本发明还提供了制备上述共轭物及其药物组合物的工艺。