Document Information


PMID 12437573  (  )
Title Oxidative modulation of nuclear factor-kappaB in human cells expressing mutant fALS-typical superoxide dismutases.
Abstract Previous evidence supports the notion of a redox regulation of protein phosphatase calcineurin that might be relevant for neurodegenerative processes where an imbalance between generation and removal of reactive oxygen species occurs. We have recently observed that calcineurin activity is depressed in human neuroblastoma cells expressing Cu,Zn superoxide dismutase (SOD1) mutant G93A and in brain areas from G93A transgenic mice, and that mutant G93A-SOD1 oxidatively inactivates calcineurin in vitro. We have studied the possibility that, by interfering directly with calcineurin activity, mutant SOD1 can modulate pathways of signal transduction mediated by redox-sensitive transcription factors. In this paper, we report a calcineurin-dependent activation of nuclear factor-kappaB (NF-kappaB) induced by the expression of familial amyotrophic lateral sclerosis (fALS)-SOD1s in human neuroblastoma cell lines. Alteration of the phosphorylation state of IkappaBalpha (the inhibitor of NF-kappaB translocation into the nucleus) and induction of cyclooxygenase 2 are consistent with the up-regulation of this transcription factor in this system. All of these modifications might be relevant to signaling pathways involved in the pathogenesis of fALS.

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Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))3SOD1 | superoxide dismutase |
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)2NF-kappaB |
7797NFKBIAnuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha1ikappabalpha |

 


Targets by SciMiner Full list

HUGO ID Symbol Name ActualStr Score FlankingText
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD11.2in human neuroblastoma cells expressing Cu Zn superoxide dismutase (SOD1) SOD1 mutant G93A and in brain areas from G93A transgenic mice
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD11.2the possibility that by interfering directly with calcineurin activity mutant SOD1 can modulate pathways of signal transduction mediated by redox-sensitive transcription
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6paper we report a calcineurin-dependent activation of nuclear factor-kappaB (NF-kappaB) NF-kappaB induced by the expression of familial amyotrophic lateral sclerosis (fALS)-SOD1s
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6of the phosphorylation state of IkappaBalpha (the the inhibitor of NF-kappaB translocation into the nucleus and induction of cyclooxygenase 2 are
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0we have recently observed that calcineurin activity is depressed in human neuroblastoma cells expressing cu zn superoxide dismutase sod1 mutant g93a and in brain areas from g93a transgenic mice and that mutant g93a sod1 oxidatively inactivates calcineurin in vitro.
7797NFKBIAnuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alphaikappabalpha1.0alteration of the phosphorylation state of ikappabalpha the inhibitor of nf kappab translocation into the nucleus and induction of cyclooxygenase 2 are consistent with the up regulation of this transcription factor in this system.