Document Information


PMID 10643818  (  )
Title Final common pathways in neurodegenerative diseases: regulatory role of the glutathione cycle.
Abstract Attempts to unify diverse mechanisms of neurotoxicity have led to the concept of final common pathways which characterize frequently occurring cellular responses to disruption of homeostasis. The clinical presentation and common patho-biochemistry of reactive oxygen intermediates of Guam's disease have suggested that such pathways may be operative in three major neurodegenerative disorders: Alzheimer's dementia, amyotrophic lateral sclerosis and Parkinson's disease. A candidate-signaling pathway in this regard is characterized by the cascade arachidonic acid/HPETE/*OH/cGMP followed by activation of cGMP-dependent kinase and phosphorylation of NF-kB proteins and possibly CREB. This sequence may lead to apoptosis as well as long-term potentiation and memory and constitutes a biochemical correlate to excitotoxicity. The predominant control of *OH release from HPETE, a checkpoint in this pathway, is exerted by the glutathione cycle, a central biochemical process that is also intimately associated with the synthesis of the neurotransmitters glutamate and GABA and is connected to energy metabolism. Modifications in the activity of the glutathione cycle may provide treatment options. School, Boston, MA 02115, USA. georg_weber@dfci.harvard.edu

NOTE: Color highlight is limited to the abstract and SciMiner text-mining mode. If you see much more identified targets below from "Targets by SciMiner Summary" and "Targets by SciMiner Full list", they may have been identified from the full text.



Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)25APP | amyloid | amyloid-dependent |
9509PSEN2presenilin 2 (Alzheimer disease 4)6presenilin 2 | STM2 | PS2 |
613APOEapolipoprotein E5apolipoprotein e | ApoE |
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)4NF-kB |
11919CD40CD40 molecule, TNF receptor superfamily member 53p50 |
2345CREB1cAMP responsive element binding protein 13CREB |
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))3superoxide dismutase |
9393PRKCAprotein kinase C, alpha3protein kinase c |
4250GGT1gamma-glutamyltransferase 12glutamyl transpeptidase |
9508PSEN1presenilin 1 (Alzheimer disease 3)2PS1 | presenilin 1 |
429ALOX12arachidonate 12-lipoxygenase212 lipoxygenase |
11920FASFas (TNF receptor superfamily, member 6)2Fas | fas antigen |
1848CELcarboxyl ester lipase (bile salt-stimulated lipase)1FAP |
4983HMGB1high-mobility group box 11amphoterin |
5013HMOX1heme oxygenase (decycling) 11heme oxygenase 1 |
9065PLCG1phospholipase C, gamma 11PLC |
1516CATcatalase1catalase |
6207JUPjunction plakoglobin1catenin |
26333SRFBP1serum response factor binding protein 11p49 |
4553GPX1glutathione peroxidase 11cellular glutathione peroxidase |
15917PLCB1phospholipase C, beta 1 (phosphoinositide-specific)1phospholipase c |
3796FOSv-fos FBJ murine osteosarcoma viral oncogene homolog1c fos |
4624GSSglutathione synthetase1glutathione synthetase |
4623GSRglutathione reductase1glutathione reductase |
7872NOS1nitric oxide synthase 1 (neuronal)1NOS |

 


Targets by SciMiner Full list

HUGO ID Symbol Name ActualStr Score FlankingText
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kB1.3cGMP followed by activation of cGMP-dependent kinase and phosphorylation of NF-kB proteins and possibly CREB
2345CREB1cAMP responsive element binding protein 1CREB1.3of cGMP-dependent kinase and phosphorylation of NF-kB proteins and possibly CREB
2345CREB1cAMP responsive element binding protein 1CREB1.3The transcription factor CREB is a likely substrate for cGMP-dependent kinase that has been
11920FASFas (TNF receptor superfamily, member 6)Fas0.6TNF-receptor-dependent signaling 9 10 and 11 and engagement of the Fas antigen 12
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kB1.3nervous system expression of heme oxygenase-1 and nuclear localization of NF-kB p50 13 are intimately associated with the outlined pathway because
11919CD40CD40 molecule, TNF receptor superfamily member 5p501.1system expression of heme oxygenase-1 and nuclear localization of NF-kB p50 13 are intimately associated with the outlined pathway because heme
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kB1.3because heme oxygenase-1 may activate cGMP kinase 7 while the NF-kB proteins p50 and p49 are substrates for this enzyme (Weber,
11919CD40CD40 molecule, TNF receptor superfamily member 5p501.1oxygenase-1 may activate cGMP kinase 7 while the NF-kB proteins p50 and p49 are substrates for this enzyme (Weber, Weber unpublished
26333SRFBP1serum response factor binding protein 1p490.6activate cGMP kinase 7 while the NF-kB proteins p50 and p49 are substrates for this enzyme (Weber, Weber unpublished results
2345CREB1cAMP responsive element binding protein 1CREB1.3also induces expression of c-Fos possibly via activation of SRE CREB or FAP 14
1848CELcarboxyl ester lipase (bile salt-stimulated lipase)FAP1.0expression of c-Fos possibly via activation of SRE CREB or FAP 14
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8factors for familial Alzheimer's disease have been localized to the amyloid precursor protein apolipoprotein E presenilin 1 and presenilin 2 genes
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8mechanisms of action of these diverse molecules include regulation of amyloid production and of the metabolism of reactive oxygen intermediates so
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8that malfunctioning of these gene products causes elevated generation of amyloid _amp_#x3b2 protein and of reactive oxygen species ( Table 1
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8stress may sensitize neurons to the apoptotic signals induced by amyloid (see see later creating a double burden
9508PSEN1presenilin 1 (Alzheimer disease 3)PS10.9Presenilins (PS1 PS1 and PS2 contribute to the regulation of apoptosis with the
9509PSEN2presenilin 2 (Alzheimer disease 4)PS22.4Presenilins (PS1 PS1 and PS2 contribute to the regulation of apoptosis with the
9509PSEN2presenilin 2 (Alzheimer disease 4)PS22.4Presenilins (PS1 PS1 and PS2 contribute to the regulation of apoptosis with the wild-type of
9509PSEN2presenilin 2 (Alzheimer disease 4)STM23.2the regulation of apoptosis with the wild-type of Alzheimer's gene STM2 (PS2) PS2 exerting anti-apoptotic effects 16
9509PSEN2presenilin 2 (Alzheimer disease 4)PS22.4of apoptosis with the wild-type of Alzheimer's gene STM2 (PS2) PS2 exerting anti-apoptotic effects 16
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8-catenin can activate _amp_#x3b3 -secretase the enzyme that releases the amyloid fragment A_amp_#x3b2;(1-42), A_amp_#x3b2 1-42 with a consequent increase in the
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8A_amp_#x3b2;(1-42), A_amp_#x3b2 1-42 with a consequent increase in the excreted amyloid _amp_#x3b2
613APOEapolipoprotein EApoE1.3Apolipoprotein E (ApoE) ApoE protects neurons from hydrogen peroxide toxicity and binds specific metal
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8Apolipoprotein E may also protect from _amp_#x3b2 -amyloid peptide toxicity by binding to amyloid _amp_#x3b2 and under certain
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8also protect from _amp_#x3b2 -amyloid peptide toxicity by binding to amyloid _amp_#x3b2 and under certain circumstances acting as kinetic inhibitor of
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8_amp_#x3b2 and under certain circumstances acting as kinetic inhibitor of amyloid formation 18
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8The major proteinaceous component of plaques is _amp_#x3b2 -amyloid the abnormal cleavage product of the amyloid precursor protein (APP)
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8plaques is _amp_#x3b2 -amyloid the abnormal cleavage product of the amyloid precursor protein (APP) APP
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)APP0.3the abnormal cleavage product of the amyloid precursor protein (APP) APP
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8Various metals can bind to amyloid precursor protein and influence its conformation stability and homophilic interactions
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)APP0.3APP may bind copper and catalyze a redox reaction that reduces
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8Cu I and gives rise to cystine formation in the amyloid precursor protein
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8the binding of zinc which can lead to precipitation of amyloid protein 20 may also be associated with changes in the
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8While the function of amyloid precursor protein as a free radical generator may contribute to
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8generator may contribute to affecting neuron viability the concentrations of amyloid _amp_#x3b2 required to generate free radicals are in general moderately
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8Furthermore the accumulation of intercellular masses of amyloid in contrast to the soluble molecules is not suitable to
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8An alternative mechanism by which amyloid _amp_#x3b2 may cause oxidative stress in neurons as well as
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kB1.3RAGE may increase lipid peroxidation as well as activation of NF-kB p50 22
11919CD40CD40 molecule, TNF receptor superfamily member 5p501.1may increase lipid peroxidation as well as activation of NF-kB p50 22
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8-acetylcysteine 23 and inhibition of lipoxygenase protects hippocampal neurons from amyloid _amp_#x3b2 toxicity 24
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8The oxidative stress generated via production of free radicals by amyloid or via amyloid-dependent signaling can be increased by the common
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid-dependent1.0generated via production of free radicals by amyloid or via amyloid-dependent signaling can be increased by the common risk factors through
9065PLCG1phospholipase C, gamma 1PLC0.6PLA 2 phopholipase A 2 PLC phospholipase C DAG diacyl glycerol AA arachidonic acid PKC protein
7872NOS1nitric oxide synthase 1 (neuronal)NOS0.9AA arachidonic acid PKC protein kinase C GPX glutathione peroxidase NOS NO synthetase LTP long-term potentiation
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8affected in Alzheimer's disease share two common mechanisms control of amyloid _amp_#x3b2 secretion and of oxidative stress leading to apoptosis
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.8The mechanism of apoptosis induction by amyloid _amp_#x3b2 converges with the signal transduction cascade that mediates long-term
9393PRKCAprotein kinase C, alphaprotein kinase c1.0this pathway is relevant for induction of long term potentiation while protein kinase c pkc causes maintenance of long term potentiation and protein kinase c can be induced by calcium arachidonate and reactive oxygen species fig 1b .
429ALOX12arachidonate 12-lipoxygenase12 lipoxygenase1.0in functional synergism 12 lipoxygenase is directly inhibited by reduced glutathione [ 5 ].
11920FASFas (TNF receptor superfamily, member 6)fas antigen1.0erm potentiation has been attributed to programmed cell death in t lymphocytes [ 7 and 8 ] and has been inferred from studies of tnf receptor dependent signaling [ 9 10 and 11 ] and engagement of the fas antigen [ 12 ].
5013HMOX1heme oxygenase (decycling) 1heme oxygenase 11.0two markers of oxidative stress in the central nervous system expression of heme oxygenase 1 and nuclear localization of nf kb p50 [ 13 ] are intimately associated with the outlined pathway because heme oxygenase 1 may activate cgmp kinase [ 7 ] while the nf kb proteins p50 and p49 are substrates for this enzyme weber unpublished results .
3796FOSv-fos FBJ murine osteosarcoma viral oncogene homologc fos1.0cyclic gmp dependent kinase also induces expression of c fos possibly via activation of sre creb or fap [ 14 ].
4623GSRglutathione reductaseglutathione reductase1.0this is accomplished by the redox cycle catalyzed by glutathione peroxidase and glutathione reductase which can scavenge reactive oxygen intermediates including hpete during glutathione oxidation.
429ALOX12arachidonate 12-lipoxygenase12 lipoxygenase1.0in conjunction with direct inhibition of 12 lipoxygenase by glutathione [ 5 ] this mechanism may account for protection from excitotoxicity.
613APOEapolipoprotein Eapolipoprotein e1.0known genetic risk factors for familial alzheimer's disease have been localized to the amyloid precursor protein apolipoprotein e presenilin 1 and presenilin 2 genes.
9508PSEN1presenilin 1 (Alzheimer disease 3)presenilin 11.0known genetic risk factors for familial alzheimer's disease have been localized to the amyloid precursor protein apolipoprotein e presenilin 1 and presenilin 2 genes.
9509PSEN2presenilin 2 (Alzheimer disease 4)presenilin 21.0known genetic risk factors for familial alzheimer's disease have been localized to the amyloid precursor protein apolipoprotein e presenilin 1 and presenilin 2 genes.
9509PSEN2presenilin 2 (Alzheimer disease 4)presenilin 21.0during apoptosis they may be cleaved distal to their normal cleavage sites and a mutation in presenilin 2 that is related to familial alzheimer's disease favors this alternative cleavage which may either directly enhance apoptosis or diminish the apoptosis regulating function of the wild type fragments [
6207JUPjunction plakoglobincatenin1.0furthermore a complex of presenilin and _amp_#x3b2; or _amp_#x3b4; catenin can activate _amp_#x3b3; secretase the enzyme that releases the amyloid fragment a_amp_#x3b2; 1 42 with a consequent increase in the excreted amyloid _amp_#x3b2;.
613APOEapolipoprotein Eapolipoprotein e1.0apolipoprotein e apoe protects neurons from hydrogen peroxide toxicity and binds specific metal ions including iron which could otherwise catalyze the generation of hydroxyl radicals.
613APOEapolipoprotein Eapolipoprotein e1.0the gene product of apolipoprotein e allele epsilon 4 has decreased anti oxidant activity compared to alleles epsilon 2 and 3 [ 18 ].
613APOEapolipoprotein Eapolipoprotein e1.0apolipoprotein e may also protect from _amp_#x3b2; amyloid peptide toxicity by binding to amyloid _amp_#x3b2; and under certain circumstances acting as kinetic inhibitor of amyloid formation [ 18 ].
4983HMGB1high-mobility group box 1amphoterin1.0this receptor can also be engaged by amphoterin and is physiologically involved in neurite outgrowth.
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0some cases of familial amyotrophic lateral sclerosis are characterized by mutations of copper_amp_#x2013;zinc superoxide dismutase.
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0this question arises particularly in view of the observation that superoxide dismutase activities in erythrocytes from patients may be reduced by 50% compared with healthy controls [ 27 ].
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0superoxide dismutase may act as a peroxidase [ 33 and 34 ] with mutated superoxide dismutase catalyzing substrate oxidation by hydrogen peroxide at a higher rate than wild type enzyme [ 35 ].
1516CATcatalasecatalase1.0peroxidase and catalase activities are reduced in the substantia nigra caudate and putamen in parkinson's disease [ 43 ].
4553GPX1glutathione peroxidase 1cellular glutathione peroxidase1.0furthermore around 10% of cellular glutathione peroxidase are mitochondrial and there prevent oxidative damage by hydrogen peroxide.
4250GGT1gamma-glutamyltransferase 1glutamyl transpeptidase1.0of the glutathione cycle is particularly important in the central nervous system because deficiency of enzymes associated with it glutathione synthetase _amp_#x3b3; glutamyl synthetase or _amp_#x3b3; glutamyl transpeptidase leads to defective brain function [ 49 and 50 ] in addition to acidosis and a tendency to hemolysis.
4624GSSglutathione synthetaseglutathione synthetase1.0the regulatory role of the glutathione cycle is particularly important in the central nervous system because deficiency of enzymes associated with it glutathione synthetase _amp_#x3b3; glutamyl synthetase or _amp_#x3b3; glutamyl transpeptidase leads to defective brain function [ 49 and 50 ] in addition to acidosis and a tendency to hemolysis.
15917PLCB1phospholipase C, beta 1 (phosphoinositide-specific)phospholipase c1.0pla 2 : phopholipase a 2 plc: phospholipase c dag: diacyl glycerol aa: arachidonic acid pkc: protein kinase c gpx: glutathione peroxidase nos: no synthetase ltp: long term potentiation.
9393PRKCAprotein kinase C, alphaprotein kinase c1.0pla 2 : phopholipase a 2 plc: phospholipase c dag: diacyl glycerol aa: arachidonic acid pkc: protein kinase c gpx: glutathione peroxidase nos: no synthetase ltp: long term potentiation.
9393PRKCAprotein kinase C, alphaprotein kinase c1.0maintenance dashed arrows of long term potentiation is mediated by protein kinase c which can be activated by calcium arachidonate or hydroxyl radical from the pathway to induction.
4250GGT1gamma-glutamyltransferase 1glutamyl transpeptidase1.0glutathione is then transported and converted by membrane bound _amp_#x3b3; glutamyl transpeptidase followed by cleavage by membrane bound dipeptidase. _amp_#x3b3; glutamyl amino acids are transported into the cell and converted to glutamate via oxoproline.