Results 81 to 90 of about 45,797 (235)

SIRT4 positively regulates autophagy via ULK1, but independently of HDAC6 and OPA1

open access: yesFEBS Open Bio, Volume 16, Issue 5, Page 870-884, May 2026.
Cells expressing SIRT4 (H161Y), a catalytically inactive mutant of the sirtuin SIRT4, fail to upregulate LC3B‐II and exhibit a reduced autophagic flux under stress conditions. Interestingly, SIRT4(H161Y) promotes phosphorylation of ULK1 at S638 and S758 that are associated with inhibition of autophagy initiation.
Isabell Lehmkuhl   +13 more
wiley   +1 more source

The Guanine Nucleotide Exchange Factor ARNO mediates the activation of ARF and phospholipase D by insulin

open access: yesBMC Cell Biology, 2003
Background Phospholipase D (PLD) is involved in many signaling pathways. In most systems, the activity of PLD is primarily regulated by the members of the ADP-Ribosylation Factor (ARF) family of GTPases, but the mechanism of activation of PLD and ARF by ...
Fluharty Eric   +8 more
doaj   +1 more source

The Age‐Dependent Resident Myonuclear Multi‐Omic Response to an Acute Skeletal Muscle Hypertrophic Stimulus in Mice

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
Resident myonuclei are the molecular “control centers” for large multinuclear muscle fibers. It is presumed that, with aging, these control centers become compromised and contribute to delayed or blunted muscle adaptive potential. This study is a detailed roadmap that exposes how young versus aged myonuclei respond to a hypertrophic loading stimulus ...
Pieter J. Koopmans   +8 more
wiley   +1 more source

Comprehensive methylome map of lineage commitment from haematopoietic progenitors. [PDF]

open access: yes, 2010
Epigenetic modifications must underlie lineage-specific differentiation as terminally differentiated cells express tissue-specific genes, but their DNA sequence is unchanged.
Aryee, Martin J   +17 more
core   +2 more sources

NAD+‒circadian rhythm coupling in dementia

open access: yesAlzheimer's &Dementia, Volume 22, Issue 5, May 2026.
Abstract The circadian rhythm system and sleep coordinate whole‐body functions across the 24‐h cycle, yet these rhythms progressively deteriorate with neurodegenerative diseases, including dementia. Growing evidence indicates that nicotinamide adenine dinucleotide (NAD+) interacts with the circadian system through multiple molecular pathways and that ...
Shi‐qi Zhang   +7 more
wiley   +1 more source

A phosphatidylinositol-3-kinase-dependent signal transition regulates ARF1 and ARF6 during Fcgamma receptor-mediated phagocytosis.

open access: yesPLoS Biology, 2006
Fcgamma receptor (FcgammaR)-mediated phagocytosis of IgG-coated particles is regulated by 3'-phosphoinositides (3'PIs) and several classes of small GTPases, including ARF6 from the ADP Ribosylation Factor subfamily.
Peter Beemiller   +2 more
doaj   +1 more source

Plasma Proteomics Identifies Thousand‐and‐One–Amino Acid Kinase 3 as a Potential Biomarker of Rheumatoid Arthritis Activity and a Novel Therapeutic Target

open access: yesArthritis &Rheumatology, Volume 78, Issue 5, Page 1045-1061, May 2026.
Objective Bone destruction associated with active rheumatoid arthritis (RA) remains a major therapeutic challenge, with a lack of reliable molecular markers reflecting bone injury. This study aims to identify novel biomarkers linked to bone destruction in active RA through proteomic analysis, providing new strategies for precise monitoring and targeted
Pengfei Xin   +15 more
wiley   +1 more source

Hit and run versus long-term activation of PARP-1 by its different domains fine-tunes nuclear processes. [PDF]

open access: yes, 2019
Poly(ADP-ribose) polymerase 1 (PARP-1) is a multidomain multifunctional nuclear enzyme involved in the regulation of the chromatin structure and transcription.
Ampofo, Michelle   +13 more
core   +1 more source

Proteomic Analysis of Cervicovaginal Fluid for Diagnostic Endometriosis Biomarker Discovery

open access: yesPROTEOMICS – Clinical Applications, Volume 20, Issue 3, May 2026.
ABSTRACT Purpose Endometriosis is a prevalent inflammatory condition characterised by the presence of endometrial‐like tissue outside the uterus and is associated with significant challenges, including diagnostic delays and continued reliance on laparoscopy.
Emily S. J. Paterson   +7 more
wiley   +1 more source

Poly(ADP-ribose)polymerase 2 is zinc-dependent enzyme and nucleosome reorganizer

open access: yesCellular and Molecular Life Sciences
Poly(ADP-ribose)polymerase 2 (PARP2) is a nuclear protein, DNA damage sensor and an emerging target for development of anti-cancer drugs. Previously it was discovered that PARP2 binds to nucleosomes; however, critical factors involved in this process ...
Natalya Maluchenko   +8 more
doaj   +1 more source

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