Time dependent cell growth in biomedical research with General Cell Screening System

2003 ◽  
Author(s):  
G. Pretnar ◽  
F. Steindl
Keyword(s):  
Cell Growth ◽  
Biomedical Research ◽  
Time Dependent ◽  
Screening System ◽  
Dependent Cell

Comparison of Cytocidal Activities of L-DOPA and Dopamine in S. cerevisiae and C. glabrata

2020 ◽  
Vol 16 (1) ◽  
pp. 90-93
Author(s):  
Carmen E. Iriarte ◽  
Ian G. Macreadie
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Dopaminergic Neurons ◽  
Candida Glabrata ◽  
High Sensitivity ◽  
Time Dependent ◽  
Colony Forming Units ◽  
Dependent Cell ◽  
The Brain

Background: Parkinson's Disease results from a loss of dopaminergic neurons, and reduced levels of the neurotransmitter dopamine. Parkinson's Disease treatments involve increasing dopamine levels through administration of L-DOPA, which can cross the blood brain barrier and be converted to dopamine in the brain. The toxicity of dopamine has previously studied but there has been little study of L-DOPA toxicity. Methods: We have compared the toxicity of dopamine and L-DOPA in the yeasts, Saccharomyces cerevisiae and Candida glabrata by cell viability assays, measuring colony forming units. Results: L-DOPA and dopamine caused time-dependent cell killing in Candida glabrata while only dopamine caused such effects in Saccharomyces cerevisiae. The toxicity of L-DOPA is much lower than dopamine. Conclusion: Candida glabrata exhibits high sensitivity to L-DOPA and may have advantages for studying the cytotoxicity of L-DOPA.

The Natural Flavonoid Naringenin Inhibits the Cell Growth of WilmsTumorinChildren by Suppressing TLR4/NF-κB Signaling

2020 ◽  
Vol 20 ◽  
Author(s):  
Hongtao Li ◽  
Peng Chen ◽  
Lei Chen ◽  
Xinning Wang
Keyword(s):  
Cell Growth ◽  
Western Blot ◽  
Wilms Tumor ◽  
Critical Role ◽  
Time Dependent ◽  
Luciferase Assay ◽  
Dependent Manner ◽  
Tlr4 Expression ◽  
Protein Levels

Background: Nuclear factor kappa B (NF-κB) is usually activated in Wilms tumor (WT) cells and plays a critical role in WT development. Objective: The study purpose was to screen a NF-κB inhibitor from natural product library and explore its effects on WT development. Methods: Luciferase assay was employed to assess the effects of natural chemical son NF-κB activity. CCK-8 assay was conducted to assess cell growth in response to naringenin. WT xenograft model was established to analyze the effect of naringenin in vivo. Quantitative real-time PCR and Western blot were performed to examine the mRNA and protein levels of relative genes, respectively. Results: Naringenin displayed significant inhibitory effect on NF-κB activation in SK-NEP-1 cells. In SK-NEP-1 and G-401 cells, naringenin inhibited p65 phosphorylation. Moreover, naringenin suppressed TNF-α-induced p65 phosphorylation in WT cells. Naringenin inhibited TLR4 expression at both mRNA and protein levels in WT cells. CCK-8 staining showed that naringenin inhibited cell growth of the two above WT cells in dose-and time-dependent manner, whereas Toll-like receptor 4 (TLR4) over expression partially reversed the above phenomena. Besides, naringenin suppressed WT tumor growth in dose-and time-dependent manner in vivo. Western blot found that naringenin inhibited TLR4 expression and p65 phosphorylation in WT xenograft tumors. Conclusion: Naringenin inhibits WT development viasuppressing TLR4/NF-κB signaling

scholarly journals Zinc-dependent cell growth conferred by mutant tRNA synthetase.

1994 ◽  
Vol 269 (32) ◽  
pp. 20217-20220
Author(s):  
J.A. Landro ◽  
P. Schimmel
Keyword(s):  
Cell Growth ◽  
Trna Synthetase ◽  
Dependent Cell

scholarly journals The Trihelix Transcription Factor GTL1 Regulates Ploidy-Dependent Cell Growth in the Arabidopsis Trichome

2009 ◽  
Vol 21 (8) ◽  
pp. 2307-2322 ◽  
Author(s):  
Christian Breuer ◽  
Ayako Kawamura ◽  
Takanari Ichikawa ◽  
Rumi Tominaga-Wada ◽  
Takuji Wada ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Cell Growth ◽  
Dependent Cell ◽  
Trihelix Transcription Factor

scholarly journals LIM kinase 1 is required for insulin-dependent cell growth of osteosarcoma cell lines

2013 ◽  
Vol 9 (1) ◽  
pp. 103-108 ◽  
Author(s):  
HAI-SHAN ZHANG ◽  
JIAN-WU ZHAO ◽  
HONG WANG ◽  
HAN-YANG ZHANG ◽  
QIU-YE JI ◽  
...  
Keyword(s):  
Cell Growth ◽  
Cell Lines ◽  
Osteosarcoma Cell ◽  
Lim Kinase ◽  
Lim Kinase 1 ◽  
Dependent Cell ◽  
Insulin Dependent

scholarly journals Prostaglandin E2-dependent activation of Src-Stat3 signal pathway in human lung adenocarcinoma cells

2004 ◽  
Vol 22 (SI - Chem. Reactions in Foods V) ◽  
pp. S130-S132
Author(s):  
I. Nagamine ◽  
T. Yano ◽  
K. Endoh ◽  
T. Yamaki ◽  
T. Morimura ◽  
...  
Keyword(s):  
Cell Growth ◽  
Lung Adenocarcinoma ◽  
A549 Cell ◽  
A549 Cells ◽  
Prostaglandin E ◽  
Downstream Signaling ◽  
Src Signaling ◽  
Dependent Cell ◽  
Specific Antagonist ◽  
Pg E2

Accumulating evidence suggests that overproduction of prostaglandin (PG) E2 attributable to induction of cyclooxygenase-2 plays an important role in the development of lung adenocarcinoma. Recently, we have reported that a PGE2 receptor, EP3 is involved in appearance of malignant phenotype of a lung adenocarcinoma cell (A549 cell). In line with our previous study, here we investigated if Src signaling could be involved in PGE2-stimulated growth of A549 cells via EP3. PGE2-dependent cell growth in A549 cell positively related to the activation of Src. A specific antagonist against EP3 abrogated the cell growth and Src activation in the cells stimulated with PGE2. Also, the inhibition of Src activity suppressed its downstream signaling related to cell growth as well as the cell growth in the cells treated with PGE2. These results indicate that PGE2-dependent activation of Src signaling via EP3 plays an important role in growth of A549 cells.

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