Abstract The clinical success of PARP1/2 inhibitors (PARPi) prompts the expansion of their applicability beyond homologous recombination deficiency. Here, we demonstrate that the loss of the accessory subunits of DNA polymerase epsilon, POLE3 and POLE4, sensitizes cells to PARPi. We…
Abstract Complement is an ancient and complex network of the immune system and, as such, it plays vital physiological roles, but it is also involved in numerous pathological processes. The proper regulation of the complement system is important to allow…
Abstract A propylphosphonic anhydride (T3P®)-mediated new multicomponent method was developed for the synthesis of benzo[de]isoquinolinones bearing a phosphonate or a phosphine oxide moiety as a new family of compounds. The one-pot three-component reaction of 1,8-naphthalaldehydic acid, primary amines and dialkyl…
Abstract A series of new dialkyl α-diethylphosphonoylethyl-α-hydroxy-ethylphosphonates were prepared using the Pudovik reaction of the corresponding γ-oxophosphonate with dialkyl phosphites performed on the surface of Al2O3 The adducts revealed unexpected reactivity in the attempted O-acylation reaction, and provided the corresponding…
Abstract DNA damage tolerance (DDT) pathways mitigate the effects of DNA damage during replication by rescuing the replication fork stalled at a DNA lesion or other barriers and also repair discontinuities left in the newly replicated DNA. From yeast to mammalian…
Abstract Screening of ultra-low-molecular weight ligands (MiniFrags) successfully identified viable chemical starting points for a variety of drug targets. Here we report the electrophilic analogues of MiniFrags that allow the mapping of potential binding sites for covalent inhibitors by biochemical…
Absztrakt Fragment screening is a popular strategy of generating viable chemical starting points especially for challenging targets. Although fragments provide a better coverage of chemical space and they have typically higher chance of binding, their weak affinity necessitates highly sensitive…
Abstract Covalent inhibition has been attracting significant attention in drug discovery. Here we present the free energy-based computational modeling of both reversible and irreversible covalent inhibitors. The specific features of reversible inhibition are discussed emphasizing the difference between the two-state…
Absztrakt Covalent drugs might bear electrophiles to chemically modify their targets and have the potential to target previously undruggable proteins with high potency. Covalent binding of drug-size molecules includes a noncovalent recognition provided by secondary interactions and a chemical reaction…
Absztrakt The imidazole alkaloid lepidiline A from the root of Lepidium meyenii has a moderate to low in vitro anticancer effect. Our aim was to extend cytotoxicity investigations against a panel of cancer cells, including multidrug-resistant cancer cells, and multipotent stem cells.…