Naturally Occurring Sclareol Diterpene Augments the Chemosensitivity of Human Hela Cervical Cancer Cells by Inducing Mitochondrial Mediated Programmed Cell Death, S-Phase Cell Cycle Arrest and Targeting Mitogen-Activated Protein Kinase (MAPK)/Extracellular-Signal-Regulated Kinase (ERK) Signaling Pathway

UCN-01-Induced Cell Cycle Arrest Requires the Transcriptional Induction of p21 by Activation of Mitogen-Activated Protein/Extracellular Signal- Regulated Kinase Kinase/Extracellular Signal-Regulated Kinase Pathway

The small molecule UCN-01 is a cyclin-dependent kinase (CDK) modulator shown to have antiproliferative effects against several in vitro and in vivo cancer models currently being tested in human clinical trials. Although UCN-01 may inhibit several serine-threonine kinases, the exact mechanism by which it promotes cell cycle arrest is still unclear. We have reported previously that UCN-01 promote...

Inactivation of mitogen-activated protein kinase signaling pathway reduces caspase-14 expression in impaired keratinocytes

Objective(s):Several investigations have revealed that caspase-14 is responsible for the epidermal differentiation and cornification, as well as the regulation of moisturizing effect. However, the precise regulation mechanism is still not clear. This study was aimed to investigate the expression of caspase-14 in filaggrin-deficient normal human epidermal keratinocytes (NHEKs) and to explore the...

Mitogen-activated protein/extracellular signal-regulated kinase kinase (MEK) inhibitors restore anoikis sensitivity in human breast cancer cell lines with a constitutively activated extracellular-regulated kinase (ERK) pathway.

Anchorage-independent growth is a hallmark of oncogenic transformation. We reported that the mitogen-activated protein/extracellular signal-regulated kinase kinase (MEK) inhibitor U0126 inhibited anchorage-independent growth of Ki-ras-transformed rat fibroblasts by simultaneously blocking both extracellular signal-regulated kinase (ERK) and mammalian target of rapamycin (mTOR)-p70(S6K) pathways...

Retinoic Acid Induced Mitogen-activated Protein (MAP)/Extracellular Signal-regulated Kinase (ERK) Kinase-dependent MAP Kinase Activation Needed to Elicit HL-60 Cell Differentiation and Growth Arrest, Cancer

Crude Methanol Extract of Echinophora Platyloba Induces Apoptosis and Cell Cycle Arrest at S-Phase in Human Breast Cancer Cells

The aim of the present study was to determine cytotoxic activity of crude methanolicextract of Echinophora platyloba on breast cancer MDA-MB-231 cell line. The free radicalscavenging effects of methanolic extract of E. platyloba were tested using DPPH method.Crude methanolic extract exhibited potential antioxidant activity with an IC50 value of 234.28 ±21.63 μg/mL when compared to the standard ...