Results 11 to 20 of about 18,481 (166)

EpoR Activation Stimulates Erythroid Precursor Proliferation by Inducing Phosphorylation of Tyrosine-88 of the CDK-Inhibitor p27Kip1

open access: yesCells, 2023
Erythrocyte biogenesis needs to be tightly regulated to secure oxygen transport and control plasma viscosity. The cytokine erythropoietin (Epo) governs erythropoiesis by promoting cell proliferation, differentiation, and survival of erythroid precursor ...
Fragka Pegka   +4 more
doaj   +1 more source

The AMPK/p27Kip1 Pathway as a Novel Target to Promote Autophagy and Resilience in Aged Cells

open access: yesCells, 2021
Once believed to solely function as a cyclin-dependent kinase inhibitor, p27Kip1 is now emerging as a critical mediator of autophagy, cytoskeletal dynamics, cell migration and apoptosis.
Lauren K. McKay, James P. White
doaj   +1 more source

Control of Cyclin-Dependent Kinase Inhibitor p27 Expression by Cap-Independent Translation [PDF]

open access: yesMolecular and Cellular Biology, 2001
p27 is a key regulator of cell proliferation through inhibition of G(1) cyclin-dependent kinase (CDK) activity. Translation of the p27 mRNA is an important control mechanism for determining cellular levels of the inhibitor. Nearly all eukaryotic mRNAs are translated through a mechanism involving recognition of the 5' cap by eukaryotic initiation factor
W K, Miskimins   +3 more
openaire   +2 more sources

Regulation of the cyclin-dependent kinase inhibitor p27 by degradation and phosphorylation [PDF]

open access: yesLeukemia, 1997
The cell cycle has been the object of extensive studies for the past years. A complex network of molecular interactions has been identified. In particular, a class of cell cycle inhibitory proteins has been cloned and characterized but details of the molecular mechanism of their action have yet to be resolved.
A, Alessandrini, D S, Chiaur, M, Pagano
openaire   +2 more sources

Establishment of high-throughput screening HTRF assay for identification small molecule inhibitors of Skp2-Cks1

open access: yesScientific Reports, 2021
S-phase kinase associated protein 2 (Skp2), a member of the F-box family that constitute the largest known class of ubiquitin E3 specificity components, is responsible for recognizing and recruiting cyclin-dependent kinase inhibitor p27 for its ...
Kaizhao Hu   +4 more
doaj   +1 more source

Modulation of apoptosis by the cyclin-dependent kinase inhibitor p27Kip1 [PDF]

open access: yesJournal of Clinical Investigation, 1999
Proliferation and apoptosis are increased in many types of inflammatory diseases. A role for the cyclin kinase inhibitor p27(Kip1) (p27) in limiting proliferation has been shown. In this study, we show that p27(-/-) mesangial cells and fibroblasts have strikingly elevated rates of apoptosis, not proliferation, when deprived of growth factors. Apoptosis
K, Hiromura   +4 more
openaire   +2 more sources

Dynamic anticipation by Cdk2/Cyclin A-bound p27 mediates signal integration in cell cycle regulation

open access: yesNature Communications, 2019
The cyclin-dependent kinase (Cdk) inhibitor p27Kip1 (p27) folds upon binding to Cdk/cyclin complexes and during cell cycle progression p27 becomes phosphorylated, which triggers its ubiquitination and degradation.
Maksym Tsytlonok   +14 more
doaj   +1 more source

CDKN1B/p27 is localized in mitochondria and improves respiration-dependent processes in the cardiovascular system-New mode of action for caffeine.

open access: yesPLoS Biology, 2018
We show that the cyclin-dependent kinase inhibitor 1B (CDKN1B)/p27, previously known as a cell cycle inhibitor, is also localized within mitochondria. The migratory capacity of endothelial cells, which need intact mitochondria, is completely dependent on
Niloofar Ale-Agha   +20 more
doaj   +1 more source

Estrogen and progesterone regulate p27kip1 levels via the ubiquitin-proteasome system: pathogenic and therapeutic implications for endometrial cancer. [PDF]

open access: yesPLoS ONE, 2012
The levels of proteins that control the cell cycle are regulated by ubiquitin-mediated degradation via the ubiquitin-proteasome system (UPS) by substrate-specific E3 ubiquitin ligases. The cyclin-dependent kinase inhibitor, p27kip1 (p27), that blocks the
Kuang-Tzu Huang   +5 more
doaj   +1 more source

The SKP2‐p27 axis defines susceptibility to cell death upon CHK1 inhibition

open access: yesMolecular Oncology, 2022
Checkpoint kinase 1 (CHK1; encoded by CHEK1) is an essential gene that monitors DNA replication fidelity and prevents mitotic entry in the presence of under‐replicated DNA or exogenous DNA damage.
Michael Lohmüller   +7 more
doaj   +1 more source

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