scholarly journals Protein Kinase C inhibitor Molecule Effect Partial Reversal of Spliceopathy in Myotonic Dystrophy Type 2 Cell Line

2020 ◽  
1993 ◽  
Vol 21 (4) ◽  
pp. 384S-384S
Author(s):  
LOUISE A. CONROY ◽  
JANET E. MERRITT ◽  
CHRYSANTHI F. GIAFI ◽  
ALAN G. LAMONT ◽  
TREVOR J. HALLAM

1991 ◽  
Vol 2 (4) ◽  
pp. 329-335 ◽  
Author(s):  
K Bomsztyk ◽  
J W Rooney ◽  
T Iwasaki ◽  
N A Rachie ◽  
S K Dower ◽  
...  

Nuclear factor kappa B (NF-kappa B) is a ubiquitous transcription factor that affects expression of many genes, including immunoglobulin kappa (kappa), the interleukin-2 receptor alpha chain, and two genes in HIV-1. NF-kappa B can be activated by a number of stimuli, including pharmacological stimulation of protein kinase C by phorbol 12-myristate 13-acetate (PMA) and treatment in vitro with either protein kinase C or protein kinase A. This has lead to the proposal that these kinases are key enzymes in the physiological activation of NF-kappa B as well. We have used a murine B cell line, 70Z/3, and T cell line, EL-4 6.1 C10, to study the activation of NF-kappa B by two physiological activators, interleukin-1 alpha (IL-1) and lipopolysaccharide (LPS). There are four reasons to propose that these agents activate pathways that do not include protein kinase C as a major component in these cell lines. First, the protein kinase C inhibitor 1-(5-isoquinolinesulfonyl)-2-methylpiperazine (H-7) strongly inhibited PMA-induced activation of NF-kappa B in 70Z/3 cells but had no effect on NF-kappa B activated by IL-1 or LPS. Second, depletion of protein kinase C by prolonged growth of 70Z/3 in PMA abrogated the capacity of the cells to activate NF-kappa B in response to further PMA treatment. However, these same cells activated NF-kappa B normally after either IL-1 or LPS treatment. Third, IL-1 effectively activated NF-kappa B in EL-4 6.1 C10 cells, but PMA did not. Fourth, interferon-gamma is a potent activator of protein kinase C in 70Z/3 cells, but is completely inactive in the mobilization of NF-kappa B. These results suggest that the physiological inducers IL-1 and LPS activate NF-kappa B by pathways independent of protein kinase C in both 70Z/3 and EL-4 6.1 C10 cells.


2005 ◽  
Vol 17 (11) ◽  
pp. 1384-1396 ◽  
Author(s):  
Amos C. Hung ◽  
You-Jing Chu ◽  
Ya-Hui Lin ◽  
Ju-Yun Weng ◽  
Hammer B. Chen ◽  
...  

2006 ◽  
Vol 207 (3) ◽  
pp. 668-674 ◽  
Author(s):  
Hui-Sheng Liu ◽  
Zhi-Tao Hu ◽  
Ke-Ming Zhou ◽  
Ya-Ming Jiu ◽  
Hua Yang ◽  
...  

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