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There are 2 families of CDKIs. (17) The CIP/KIP family of kinase inhibitors includes p21, p27, and p57.
Among the CDKIs, there has been great interest in studying the relation of p16 with melanoma.
Adenoviral delivery of E2F1 to primary rat cardiomyocytes evoked DNA synthesis and p53-independent apoptosis that is associated with activation of CDK1/2 and CDK4/6 and downregulation of CDKIs p21 and p27 [233, 234].
In stomach carcinoma cell model, an ethanol extract of Rhus verniciflua Stokes significantly inhibited [G.sub.1] cell cycle progression via [p27.sup.Kip1] CDKI upregulation and induced mitochondrial apoptosis through the increment of Bax expression, the inhibition of Bcl-2 expression, the release of cytochrome c, and the activation of caspase-3 and caspase9 cascade, and this mechanism by Rhus verniciflua Stokes was an enhanced inhibition of the PI3K-Akt/PKB survival pathway [11,13].
Furthermore, the cyclin-dependent kinase inhibitors (cdki) p21 and p27, which has been shown to play a role in maintaining stem cells in quiescence and self renewing state, did not exhibit a difference by flow cytometry (data not shown).
In normal and hematologically malignant cells partial illumination of the cell cycle--and thus the etiopathology of malignancy--can only be determined via comparison of the quantified changes in the cyclical phases of cyclins and CDKIs in healthy and malignant proliferated cells.
The cyclin dependent kinases (CDKs) are important components of the cell cycle machinery, and are positively regulated by cyclins and negatively regulated by cyclin dependent kinase inhibitors (CDKIs) .
A progressao no ciclo celular e orquestrada pelas ciclinas e pelas quinases ciclina dependentes (CDKs), sendo o controle negativo exercido pelos inibidores das quinases ciclina dependentes (CDKIs).
Aparte de la determinacion del tamano telomerico y el metodo de senescencia asociada a la enzima [beta]-gal (SA-[beta]Gal) actualmente se emplean otro tipo de marcadores clasificados en: elementos de las vias de transduccion de senales que mantienen fenotipos senescentes, como las proteinas reguladoras de CDKIs: p16 o p21; marcadores de estres genotoxico; secrecion de citoquinas inflamatorias, entre otros (Campisi, 2005; Campisi y d'Adda di Fagagna, 2007; Jeyapalan y Sedivy, 2008), pero estos no son tan especificos y requieren de otros ensayos que los soporten.
The SA-miRNAs control cell transition, mainly through the [G.sub.1]/S checkpoint during cell cycle progression by targeting the components of cell cycle including cyclin-dependent kinases (CDKs) and cyclin-dependent kinase inhibitors (CDKIs) .
In turn, p53 was up-regulated and phosphorylated, which then promoted the overexpression of downstream CdkIs [p21.sup.CiP1] and [p27.sup.KiP1].
We sought to examine the expression of the cyclin-dependent kinase inhibitors (CDKIs) [p21.sup.WAF1] and [p27.sup.KIP1], to determine the extent of their expression by immunohistochemistry and their possible association with histologic subtype.
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- CDK4 gene
- CDK4 gene
- CDK4 inhibitor p16-INK4, INK4a
- CDK4B inhibitor
- CDK5-Binding Protein
- CDK6 inhibitor p18
- CDK8 protein kinase
- CDK8-like cyclin-dependent kinase
- CDK9-associated C-type protein