staurosporine/atrofia

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Staurosporine-induced cell death in Tetrahymena thermophila has mixed characteristics of both apoptotic and autophagic degeneration.

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Staurosporine blocks signal transduction associated with cell survival, proliferation and chemosensory behaviour in the ciliated protozoan, Tetrahymena thermophila. Staurosporine inhibits cell proliferation and in vivo protein phosphorylation induced by phorbol ester. It also reduces the in vitro

Dual response of the KATP channels to staurosporine: a novel role of SUR2B, SUR1 and Kir6.2 subunits in the regulation of the atrophy in different skeletal muscle phenotypes.

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We investigated on the role of the genes encoding for the ATP-sensitive K(+)-channel (KATP) subunits (SUR1-2A/B, Kir6.2) in the atrophy induced "in vitro" by staurosporine (STS) in different skeletal muscle phenotypes of mouse. Patch-clamp and gene expression experiments showed that the

Staurosporine-induced neuronal apoptosis.

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Staurosporine, a nonselective protein kinase inhibitor, has been shown to induce apoptosis in several different nonneuronal cell types. We tested the hypothesis that staurosporine would also induce apoptosis in central neurons. Exposure of murine cortical cell cultures to 30-100 nM staurosporine

Dentatorubral pallidoluysian atrophy (DRPLA) protein is cleaved by caspase-3 during apoptosis.

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Dentatorubral pallidoluysian atrophy (DRPLA) is an autosomal dominant neurodegenerative disorder. It is associated with an abnormal CAG repeat expansion resulting in formation of a protein with an elongated polyglutamine stretch. However, neither the physiological roles of the DRPLA gene product nor

Hypersensitivity of A8344G MERRF mutated cybrid cells to staurosporine-induced cell death is mediated by calcium-dependent activation of calpains.

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Mutations in the mitochondrial DNA can lead to the development of mitochondrial diseases such as Myoclonic Epilepsy with Ragged Red Fibers (MERRF) or Mitochondrial Encephalomyopathy, Lactic Acidosis and Stroke-like episodes (MELAS). We first show that human 143B-derived cybrid cells harboring either

Anchored FRET sensors detect local caspase activation prior to neuronal degeneration.

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BACKGROUND Recent studies indicate local caspase activation in dendrites or axons during development and in neurodegenerative disorders such as Alzheimer's disease (AD). Emerging evidences point to soluble oligomeric amyloid-β peptide as a causative agent in AD. RESULTS Here we describe the design

Staurosporine-induced apoptosis in astrocytes is prevented by A1 adenosine receptor activation.

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Astrocyte apoptosis occurs in acute and chronic pathological processes at the central nervous system and the prevention of astrocyte death may represent an efficacious intervention in protecting neurons against degeneration. Our research shows that rat astrocyte exposure to 100 nM staurosporine for

Survival motor neuron protein regulates apoptosis in an in vitro model of spinal muscular atrophy.

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Progressive spinal muscular atrophy (SMA), the most prevalent hereditary lower motor neuron disease, is caused by mutations in the telomeric copy of the survival of motor neuron (SMN1) gene. Unlike other cells, lower motor neurons cannot tolerate low levels of smn protein. However, it is unclear as

TGF-beta 1 protects hippocampal neurons against degeneration caused by transient global ischemia. Dose-response relationship and potential neuroprotective mechanisms.

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OBJECTIVE Transforming growth factor-beta 1 (TGF-beta 1) has been shown to rescue cultured neurons from excitotoxic and hypoxic cell death and to reduce infarct size after focal cerebral ischemia in mice and rabbits. The present study investigated the effects of TGF-beta 1 in a different

Ca2+ and reactive oxygen species in staurosporine-induced neuronal apoptosis.

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Staurosporine (0.03-0.5 microM) induced a dose-dependent, apoptotic degeneration in cultured rat hippocampal neurons that was sensitive to 24-h pretreatments with the protein synthesis inhibitor cycloheximide (1 microM) or the cell cycle inhibitor mimosine (100 microM). To investigate the role of

Staurosporine induces dopaminergic neurite outgrowth through AMP-activated protein kinase/mammalian target of rapamycin signaling pathway.

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Axonal degeneration of dopaminergic neurons is one of the pathological features in the early stages of Parkinson disease. Promotion of axonal outgrowth of the remaining dopaminergic neurons leads to the recovery of the nigrostriatal pathway. Staurosporine (STS), a wide-spectrum kinase inhibitor,

Effects of sphingosine, staurosporine, and phorbol ester on neurites of rat sympathetic neurons growing in compartmented cultures.

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Local application of sphingosine (1-10 microM), an inhibitor of protein kinase C, to NGF-supplied, distal neurites of rat sympathetic neurons in compartmented cultures caused their retraction and/or degeneration within 24 hr. This effect was specific for distal neurites because sphingosine (even at

Antitumor activity of the new selective protein kinase C inhibitor 4'-N-benzoyl staurosporine on murine and human tumor models.

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CGP 41251 (4'-N-benzoyl staurosporine, CAS 120685-11-2) has been shown to exert increased selectivity for the inhibition of protein kinase C (PKC) activity. In the present study the effect of CGP 41251 formulated in gelucire as an antitumor agent was studied in various types of murine and human

Enhanced oligodendrocyte survival after spinal cord injury in Bax-deficient mice and mice with delayed Wallerian degeneration.

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Mechanisms of oligodendrocyte death after spinal cord injury (SCI) were evaluated by T9 cord level hemisection in wild-type mice (C57BL/6J and Bax+/+ mice), Wlds mice in which severed axons remain viable for 2 weeks, and mice deficient in the proapoptotic protein Bax (Bax-/-). In the lateral

Staurosporine-induced neuronal death: multiple mechanisms and methodological implications.

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To examine whether multiple pathways of cell death exist in sympathetic neurons, we studied the cell death pathway induced by staurosporine (STS) in sympathetic neurons and compared it with the well-characterized NGF deprivation-induced death pathway. Increasing concentrations of STS were found to

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