Role of Protein Kinase C in Increase of Transepithelial Permeability Induced by Oxidants in Opossum Kidney Cells

1997 ◽  
Vol 7 (2) ◽  
pp. 61-68 ◽  
Author(s):  
Yong Keun Kim ◽  
Kwon Moo Park ◽  
Sun Hee Ko ◽  
Jae Suk Woo
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Kidney Cells ◽  
Opossum Kidney ◽  
Kinase C ◽  
Transepithelial Permeability ◽  
Opossum Kidney Cells

Role of protein kinase C in the regulation of steroidogenesis in the mouse Leydig cell

1986 ◽  
Vol 113 (1_Suppl) ◽  
pp. S63-S64
Author(s):  
A. K. MUKHOPADHYAY ◽  
H. G. BOHNET
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Leydig Cell ◽  
Kinase C ◽  
Mouse Leydig Cell

scholarly journals Dysregulation of protein kinase C in adult depression and suicide: evidence from postmortem brain studies

2021 ◽  
Author(s):  
Ghanshyam N Pandey ◽  
Anuradha Sharma ◽  
Hooriyah S Rizavi ◽  
Xinguo Ren
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Protein Expression ◽  
Mrna Expression ◽  
Postmortem Brain ◽  
Cortical Region ◽  
Cytosol Fraction ◽  
Kinase C ◽  
Pkc Isozymes

Abstract Background Several lines of evidence suggest the abnormalities of protein kinase C (PKC) signaling system in mood disorders and suicide based primarily on the studies of PKC and its isozymes in the platelets and postmortem brain of depressed and suicidal subjects. In this study we examined the role of PKC isozymes in depression and suicide. Methods We determined the protein and mRNA expression of various PKC isozymes in the prefrontal cortical region [Brodmann area 9 (BA9)] in 24 normal control (NC) subjects, 24 depressed suicide (DS) subjects and 12 depressed non-suicide (DNS) subjects. The levels of mRNA in the prefrontal cortex (PFC) were determined by qRT-PCR and the protein expression was determined by Western blotting. Results We observed a significant decrease in mRNA expression of PKCα, PKCβI, PKCδ and PKCε and decreased protein expression either in the membrane or the cytosol fraction of PKC isozymes - PKCα, PKCβI, PKCβII and PKCδ in DS and DNS subjects compared with NC subjects. Conclusions The current study provides detailed evidence of specific dysregulation of certain PKC isozymes in the postmortem brain of DS and DNS subjects and further supports earlier evidence for the role of PKC in the platelets and brain of adult and teenage depressed and suicidal population. This comprehensive study may lead to further knowledge of the involvement of PKC in the pathophysiology of depression and suicide.

scholarly journals Role of cadmium in activating nuclear protein kinase C and the enzyme binding to nuclear protein.

1992 ◽  
Vol 267 (28) ◽  
pp. 19824-19828
Author(s):  
C Block ◽  
S Freyermuth ◽  
D Beyersmann ◽  
A.N. Malviya
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Nuclear Protein ◽  
Enzyme Binding ◽  
Kinase C

The role of PKMζ in the maintenance of long-term memory: a review

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamish Patel ◽  
Reza Zamani
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
Long Term Potentiation ◽  
Global Memory ◽  
Long Term Memory ◽  
Compensatory Mechanism ◽  
Term Memory ◽  
Kinase C

Abstract Long-term memories are thought to be stored in neurones and synapses that undergo physical changes, such as long-term potentiation (LTP), and these changes can be maintained for long periods of time. A candidate enzyme for the maintenance of LTP is protein kinase M zeta (PKMζ), a constitutively active protein kinase C isoform that is elevated during LTP and long-term memory maintenance. This paper reviews the evidence and controversies surrounding the role of PKMζ in the maintenance of long-term memory. PKMζ maintains synaptic potentiation by preventing AMPA receptor endocytosis and promoting stabilisation of dendritic spine growth. Inhibition of PKMζ, with zeta-inhibitory peptide (ZIP), can reverse LTP and impair established long-term memories. However, a deficit of memory retrieval cannot be ruled out. Furthermore, ZIP, and in high enough doses the control peptide scrambled ZIP, was recently shown to be neurotoxic, which may explain some of the effects of ZIP on memory impairment. PKMζ knockout mice show normal learning and memory. However, this is likely due to compensation by protein-kinase C iota/lambda (PKCι/λ), which is normally responsible for induction of LTP. It is not clear how, or if, this compensatory mechanism is activated under normal conditions. Future research should utilise inducible PKMζ knockdown in adult rodents to investigate whether PKMζ maintains memory in specific parts of the brain, or if it represents a global memory maintenance molecule. These insights may inform future therapeutic targets for disorders of memory loss.

Sign in / Sign up

Export Citation Format

Share Document