[EN] NOVEL CYTOTOXIC AGENTS FOR CONJUGATION OF DRUGS TO CELL BINDING MOLECULE [FR] NOUVEAUX AGENTS CYTOTOXIQUES POUR LA CONJUGAISON DE MÉDICAMENTS AVEC LA MOLÉCULE DE LIAISON CELLULAIRE
Disruption of mitochondrial redox homeostasis by enzymatic activation of a trialkylphosphine probe
作者:Jade Nguyen、Alina Tirla、Pablo Rivera-Fuentes
DOI:10.1039/d0ob02259d
日期:——
Redox homeostasis is essential for cell function and its disruption is associated with multiple pathologies. Redox balance is largely regulated by the relative concentrations of reduced and oxidized glutathione. In eukaryotic cells, this ratio is different in each cell compartment, and disruption of the mitochondrial redox balance has been specifically linked to metabolic diseases. Here, we report
Protein lysine crotonylation has emerged as an important post-translational modification (PTM) in the regulation of gene transcription through epigenetic mechanisms. Here we introduce a chemical probe, based on a water-soluble phosphine warhead, which reacts with the crotonyl modification. We show that this reagent is complementary to antibody-based tools allowing detection of endogenous cellular proteins
NOVEL CYTOTOXIC AGENTS FOR CONJUGATION TO A CELL BINDING MOLECULE
申请人:HANGZHOU DAC BIOTECH CO., LTD
公开号:US20160207949A1
公开(公告)日:2016-07-21
The present invention is related to novel cytotoxic agents, pyrrolo[2,1-c][1,4]benzodiazepine (PBD) derivatives, their conjugates with a cell-binding agent, the preparation and the therapeutic uses in the targeted treatment of cancers, autoimmune disorders, and infectious diseases.
Hydride ruthenium carbonyl complexes substituted by functionalized phosphines such as H4Ru4(CO)(8)[P(CH2OCOR)(3)](4) have been synthesized and tested as catalysts in the hydrogenation of carboxylic acids. These complexes are more active than those reported previously, containing trialkyl- or triarylphosphines. On the basis of their behavior, their different activity has been explained in terms of an involvement of the phosphine ligand in the catalytic cycle. The ester group present in the phosphine P(CH2OCOR)(3) is hydrogenated to produce an alcohol (RCH2OH) and a P(CH2OH) group which, in turn, reacts with the free acid present in solution to restore the P(CH2OCOR) group. This hypothesis has been confirmed by the reactivity of the possible intermediate H4Ru4(CO)(8)[P(CH2OH)(3)](4) with acetic acid. Another support to this statement is the almost equal catalytic activity, displayed by H4Ru4(CO)(8)[P(CH2OCOR)(3)](4) complexes, whatever the R group present, in the phosphine ligand, in the hydrogenation of carboxylic acids. These complexes, on the other hand, are less active than the corresponding tributylphosphine substituted ones in the hydrogenation of alkenes and ketones. Finally when the phosphine ligand is P(CH2CH2COOCH3)(3) the ester group is not reduced and consequently the catalytic activity of this complex in the hydrogenation of carboxylic acids is very low. (C) 1999 Elsevier Science S.A. All rights reserved.