Results 61 to 70 of about 144,925 (192)

Overactivation of poly(adenosine phosphate–ribose) polymerase 1 and molecular events in neuronal injury after deep hypothermic circulatory arrest: Study in a rabbit model [PDF]

open access: yes, 2007
ObjectiveAlthough deep hypothermic circulatory arrest has been known to induce neuronal injury, the molecular mechanism of this damage has not been identified.
Long, Cun   +8 more
core   +1 more source

Resolution and Quantitation of Ribonucleosides and Deoxyribonucleosides in Digested Genomic DNA by UHPLC–MS/MS

open access: yesBiomedical Chromatography, Volume 40, Issue 10, October 2026.
ABSTRACT Deoxyuridine (dUrd) is often misincorporated into genomic DNA in cancer patients receiving antimetabolite chemotherapy. This activates base excision repair and recruits ataxia telangiectasia‐mutated and Rad3‐related (ATR), which coordinates DNA repair with nucleotide metabolism by facilitating ribonucleotide reductase (RNR) activity ...
Joshua J. Deppas   +5 more
wiley   +1 more source

Prostate cancer and PARP inhibitors: progress and challenges

open access: yesJournal of Hematology & Oncology, 2021
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

Metabolic analyses reveal dysregulated NAD+ metabolism and altered mitochondrial state in ulcerative colitis.

open access: yesPLoS ONE, 2022
Ulcerative colitis (UC) is a complex, multifactorial disease driven by a dysregulated immune response against host commensal microbes. Despite rapid advances in our understanding of host genomics and transcriptomics, the metabolic changes in UC remain ...
Yu Hui Kang   +5 more
doaj   +1 more source

The evolving role of immunotherapy in ovarian cancer

open access: yesCancer, Volume 132, Issue 18, 15 September 2026.
Abstract Ovarian cancer remains a major cause of gynecologic cancer mortality; and, although immune checkpoint inhibitors have transformed treatment in other solid tumors, their activity in ovarian cancer has been limited by tumor heterogeneity, an immunosuppressive tumor microenvironment, and the lack of robust predictive biomarkers.
Ana Carolina Veneziani   +2 more
wiley   +1 more source

Total Synthesis of a Cyclic Adenosine 5′-Diphosphate Ribose Receptor Agonist

open access: yes, 2015
Stable cyclic adenosine 5′-diphosphate ribose (cADPR) analogues are chemical biology tools that can probe the Ca2+ release mechanism and structure–activity relationships of this emerging potent second messenger.
Joanna M. Swarbrick (1285617)   +1 more
core   +1 more source

Membrane‐Permeable Nucleoside T‐1106 Diphosphate and Triphosphate Analogues as Antiviral Pronucleotides

open access: yesChemistry – A European Journal, Volume 32, Issue 34, 11 September 2026.
Favipiravir (T‐705) and the non‐fluorinated counterpart (T‐1106) are antiviral agents that inhibit the RNA‐dependent RNA polymerase (RdRp) of various RNA viruses. The antiviral efficacy of nucleoside analogues is strongly dependent on their intracellular activation by cellular kinases to produce their corresponding triphosphate metabolites (T‐705‐RTP ...
Chris Meier   +7 more
wiley   +1 more source

Rapid Synthetic Route toward Structurally Modified Derivatives of Cyclic Adenosine 5‘-Diphosphate Ribose

open access: yes, 2016
A concise synthesis of five new analogues of the second messenger cADPR (cyclic adenosine 5‘-diphosphate ribose) is presented. The synthetic plan centered around the key derivative 8-Br-N1-cIDPR (cyclic 8-Br-inosine 5‘-diphosphate ribose, 2), which was ...
Gerd K. Wagner (423554)   +2 more
core   +1 more source

RAD51AP1 and RAD54L Can Underpin Two Distinct RAD51-Dependent Routes of DNA Damage Repair via Homologous Recombination

open access: yesFrontiers in Cell and Developmental Biology, 2022
Homologous recombination DNA repair (HR) is a complex DNA damage repair pathway and an attractive target of inhibition in anti-cancer therapy. To help guide the development of efficient HR inhibitors, it is critical to identify compensatory HR sub ...
Platon Selemenakis   +7 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, Volume 600, Issue 17, Page 2579-2614, September 2026.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

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