Synthesis and calcium mobilization activity of cADPR analogues which integrate nucleobase, northern and southern ribose modifications [PDF]
Novel cADPR mimics, which integrate nucleobase, northern and southern ribose modifications were synthesized. The key steps of the synthesis were a Cu(I)-catalyzed Hüisgen [3+2] cycloaddition and a microwave-assisted intramolecular pyrophosphorylation ...
Jin, H +6 more
core +2 more sources
Poly[adenosine diphosphate (ADP) ribose]polymerase (PARP) has multifaceted roles in the maintenance of genomic integrity, deoxyribonucleic acid (DNA) repair and replication, and the maintenance of immune-system homeostasis.
Elizabeth K. Lee +1 more
doaj +1 more source
Prostate cancer and PARP inhibitors: progress and challenges
Despite survival improvements achieved over the last two decades, prostate cancer remains lethal at the metastatic castration-resistant stage (mCRPC) and new therapeutic approaches are needed.
Diego Teyssonneau +8 more
doaj +1 more source
Inhibited effects of veliparib combined doxorubicin for BEL-7404 proliferation of human liver cancer cell line [PDF]
ObjectiveTo explore inhibition effects of veliparib as PARP inhibitor combined doxorubicin for BEL-7404 proliferation of human liver cancer cell line.MethodsBEL-7404 was taken as the object of study and conventional culture was performed.
Yu +17 more
core +1 more source
Synthesis and Biological Evaluation of a New Structural Simplified Analogue of cADPR, a Calcium-Mobilizing Secondary Messenger Firstly Isolated from Sea Urchin Eggs [PDF]
Herein, we reported on the synthesis of cpIPP, which is a new structurally-reduced analogue of cyclic ADP-ribose (cADPR), a potent Ca2+-releasing secondary messenger that was firstly isolated from sea urchin eggs extracts.
Borbone, Nicola +10 more
core +2 more sources
Bovine thymus poly(adenosine diphosphate ribose) polymerase.
About 1,300-fold purification of poly(adenosine diphosphate ribose) polymerase has been achieved from the extract of bovine thymus with a recovery of 10 to 20%. The final preparation has a purity of 99%, and the enzyme is composed of a single peptide with a molecular weight of 130,000. The purified enzyme required NAD+, Mg2+, a thiol compound, DNA, and
K, Yoshihara +5 more
openaire +2 more sources
Guidance Statement On BRCA1/2 Tumor Testing in Ovarian Cancer Patients [PDF]
International audienceThe approval, in 2015, of the first poly (adenosine diphosphate-ribose) polymerase inhibitor (PARPi; olaparib, Lynparza) for platinum-sensitive relapsed high-grade ovarian cancer with either germline or somatic BRCA1/2 deleterious ...
Banerjee, Susana +21 more
core +4 more sources
Demonstration of high molecular weight poly (adenosine diphosphate ribose)
An electrophoretic system was established that resolves poly(adenosine diphosphate ribose), enzymatically synthesized polymer from NAD+, by size difference of one residue on polyacrylamide gel. The existence of a polymer of at least 65 residues was demonstrated by band counting in this system. The polymer showed a heterogeneous size distribution on the
M, Tanaka +5 more
openaire +3 more sources
Visualization of poly(ADP-ribose) bound to PARG reveals inherent balance between exo- and endo-glycohydrolase activities [PDF]
Poly-ADP-ribosylation is a post-translational modification that regulates processes involved in genome stability. Breakdown of the poly(ADP-ribose) (PAR) polymer is catalysed by poly(ADP-ribose) glycohydrolase (PARG), whose endo-glycohydrolase activity ...
Ahel, Ivan +10 more
core +2 more sources
Oncogenic KRAS Rewires Stress Granule Dynamics: Mechanisms and Therapeutic Opportunities
ABSTRACT Stress granules (SGs) are dynamic, membrane‐less structures that form in response to various cellular stresses, including metabolic, oxidative, and therapeutic challenges. They function as adaptive hubs and reorganize protein synthesis and signaling networks to help cells survive under stress. In cancer, these condensates are often hijacked to
Msimisi Ndzinisa +2 more
wiley +1 more source

