Document Information


PMID 17008387  (  )
Title Pyrrolidine dithiocarbamate inhibits induction of immunoproteasome and decreases survival in a rat model of amyotrophic lateral sclerosis.
Abstract Pyrrolidine dithiocarbamate (PDTC), an inhibitor of nuclear transcription factor kappa-B (NF-kappaB) and an antioxidant, has beneficial effects in animal models of various diseases, including arthritis, brain ischemia, spinal cord injury, Alzheimer's disease, and Duchenne muscular dystrophy. Because inflammation and oxidative damage are also hallmarks of amyotrophic lateral sclerosis (ALS), we studied the effect of oral PDTC treatment on G93A-superoxide dismutase 1 (SOD1) transgenic (TG) rat model of human ALS and observed that PDTC treatment significantly decreases the survival. PDTC treatment evoked the end stage of the disease at 121 +/- 21 days, whereas untreated TG animals reached the end stage at 141 +/- 13 days (p < 0.01). The DNA binding activity of NF-kappaB was not altered in G93A-SOD1 TG rats by PDTC treatment. The copper concentration in the spinal cord was increased after PDTC treatment both in G93A-SOD1 TG and wild-type rats, suggesting that increased copper may enhance the neurotoxicity of mutant SOD1. The amount of ubiquitinated proteins were significantly higher and proteasomal activity was decreased in the spinal cords of PDTC-treated TG rats compared with other groups, suggesting that PDTC treatment decreases proteasome function. Immunoblotting and immunocytochemistry showed that the level of immunoproteasome but not constitutive proteasome was increased in glia of G93A-SOD1 TG rats along with disease development. PDTC treatment completely blocked the induction of immunoproteasome expression without affecting constitutive proteasome. These results suggest that PDTC acts as an immunoproteasome inhibitor in mutant SOD1 rats and that immunoproteasome may help the nervous system to cope with deleterious effects of SOD1-G93A mutation. University of Kuopio, PO B 1627, FIN-70211 Kuopio, Finland.

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Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 224GLT-1 | glt 1 |
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)18nf kappa b | NF-kappaB |
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)16LMP7 |
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))16superoxide dismutase 1 | SOD1 | SOD1-mediated | SOD | SOD1-containing |
2524CTRLchymotrypsin-like3chymotrypsin like |
1693CD68CD68 molecule2CD68 |
990BCL2B-cell CLL/lymphoma 22Bcl-2 | bcl 2 |
4235GFAPglial fibrillary acidic protein2glial fibrillary acidic protein |
5992IL1Binterleukin 1, beta2interleukin 1 beta |
10417RPS27Aribosomal protein S27a1ubiquitin |
9546PSMB9proteasome (prosome, macropain) subunit, beta type, 9 (large multifunctional peptidase 2)1LMP2 |
7762NEUROD1neurogenic differentiation 11beta2 |
9538PSMB10proteasome (prosome, macropain) subunit, beta type, 101MECL-1 |
11892TNFtumor necrosis factor (TNF superfamily, member 2)1tumor necrosis factor alpha |
399ALBalbumin1serum albumin |
132ACTBactin, beta1beta actin |

 


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-kappaB0.6dithiocarbamate (PDTC), PDTC an inhibitor of nuclear transcription factor kappa-B NF-kappaB and an antioxidant has beneficial effects in animal models of
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5effect of oral PDTC treatment on G93A-superoxide dismutase 1 (SOD1) SOD1 transgenic (TG) TG rat model of human ALS and observed
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6The DNA binding activity of NF-kappaB was not altered in G93A-SOD1 TG rats by PDTC treatment
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5suggesting that increased copper may enhance the neurotoxicity of mutant SOD1
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5suggest that PDTC acts as an immunoproteasome inhibitor in mutant SOD1 rats and that immunoproteasome may help the nervous system to
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6the treatment of AIDS (Reisinger Reisinger et al. 1990 kappa-B NF-kappaB that regulates the expression of several proinflammatory genes and some
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.51986 kappaB accompany motor neuron degeneration either in ALS or SOD1 mutant mice (Migheli Migheli et al. 1997 Tortarolo et al.
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5of several proinflammatory mediators is increased both in ALS and SOD1 mutant mice (Alexianu Alexianu et al. 2001 Elliott 2001 Nguyen
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5al. 2001 and numerous anti-inflammatory compounds prolong survival of TG SOD1 mutant mice (Drachman Drachman et al. 2002 Kriz et al.
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5In addition animal models that express mutant SOD1 exclusively either in motor neurons (Pramatarova Pramatarova et al. 2001
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3to manufacturer's instructions and immunostained using rabbit polyclonal anti-proteasome 20S LMP7 (dilution dilution 1 1000 Abcam Cambridge UK rabbit polyclonal anti-proteasome
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6NF-kappaB activation may promote the expression of the genes that mediate
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6cord samples showed no differences in DNA binding activity of NF-kappaB between PDTC and untreated groups ( Fig 2
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6there was a trend toward increased DNA binding activity of NF-kappaB in G93A-SOD1 TG rats
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6peripheral disease models by inhibiting the activation of transcription factor NF-kappaB serving as a strong antioxidant or by activating Akt-GSK3 beta
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD1-mediated2.2beta (Drachman Drachman et al. 2002 beta pathway reduced mutant SOD1-mediated motor neuron cell death in vitro (Koh Koh et al.
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0that PDTC treatment prevented the reduction of the glutamate transporter GLT-1 a potential therapeutic target verified in numerous animal studies of
7762NEUROD1neurogenic differentiation 1beta21.0on mouse ALS models (Cheroni Cheroni et al. 2005 beta1 beta2 and beta5 have close homologs LMP2 MECL-1 and LMP7 that
9546PSMB9proteasome (prosome, macropain) subunit, beta type, 9 (large multifunctional peptidase 2)LMP21.3et al. 2005 beta1 beta2 and beta5 have close homologs LMP2 MECL-1 and LMP7 that are selectively induced under certain conditions
9538PSMB10proteasome (prosome, macropain) subunit, beta type, 10MECL-10.3al. 2005 beta1 beta2 and beta5 have close homologs LMP2 MECL-1 and LMP7 that are selectively induced under certain conditions such
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3beta1 beta2 and beta5 have close homologs LMP2 MECL-1 and LMP7 that are selectively induced under certain conditions such as the
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0in models of ALS by increasing expression of glutamate transporter GLT-1 (Rothstein Rothstein et al. 2005 beta-lactams because it significantly increases
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0al. 2005 beta-lactams because it significantly increases the expression of GLT-1 and Cu concentration in the spinal cord We hypothesize that
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0though beta-lactams and PDTC might both be able to modulate GLT-1 and Cu concentration only PDTC but not beta-lactams inhibits immunoproteasome
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5models could increase the accumulation of ubiquitinated proteins including ubiquitinated SOD1 which has been suggested to gain neurotoxic functions such as
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6Even though inhibition of NF-kappaB has frequently been associated with tissue and cellular protection inhibition
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6frequently been associated with tissue and cellular protection inhibition of NF-kappaB may also accelerate neurodegeneration because of the survivalsupporting role of
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD2.2the survivalsupporting role of some NF-kappaB-regulated genes such as manganese SOD and Bcl-2 (Mattson Mattson and Camandola 2001 kappaB binding activity
990BCL2B-cell CLL/lymphoma 2Bcl-21.0role of some NF-kappaB-regulated genes such as manganese SOD and Bcl-2 (Mattson Mattson and Camandola 2001 kappaB binding activity in the
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6is possible that in a long-term disease such as ALS NF-kappaB activity even though being induced is not maintained at so
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6does and thereby does not result in efficient inhibition of NF-kappaB In addition we cannot exclude the possibility that NF-kappaB binding
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6of NF-kappaB In addition we cannot exclude the possibility that NF-kappaB binding to DNA is increased at time points other than
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6experiments do not provide evidence for a central role of NF-kappaB in ALS
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6In a previous study NF-kappaB immunoreactivity was found to be increased in astrocytes surrounding degenerating
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6multipotent drug providing protection in various animal models by inhibiting NF-kappaB acting as an antioxidant and activating Akt-GSK3 beta pathway also
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0as an antioxidant and activating Akt-GSK3 beta pathway also induces GLT-1 a potential drug target in brain diseases
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD1-containing2.7in non-neuronal cells and thereby accelerating the formation of toxic SOD1-containing protein aggregates
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5be important for coping with the toxic consequences of mutant SOD1 in tissues affected by ALS
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6showed no statistically significant differences in DNA binding activity of NF-kappaB between PDTC and untreated groups n = 5 results shown
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3The levels of immunoproteasome (LMP7) LMP7 increased along with the disease progression in the spinal cord
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3In G93A-SOD1 TG rats the levels of 20S LMP7 protein in the spinal cord was increased 6-fold between 8
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0PDTC led to decreased immunoproteasome levels and increased GLT-1 levels in TG rats at the end stage whereas PDTC
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0no effect on the levels of constitutive proteasome immunoproteasome or GLT-1 in WT rats
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3PDTC treatment completely prevented the induction of 20S LMP7 at the end stage of G93A-SOD1 TG rats (A A
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3A it is noteworthy that in WT animals 20S LMP7 was barely detectable or undetectable in the cytosolic fraction and
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0effect on the levels of astrocyte specific glutamate transporter (GLT-1) GLT-1
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0the spinal cords of untreated TG rats the levels of GLT-1 were decreased whereas in PDTC-treated TG rats the levels of
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0were decreased whereas in PDTC-treated TG rats the levels of GLT-1 were at the same levels as in WT rats p
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3Fig 6 20S X and 20S LMP7 expression in lumbar spinal cord
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3B 20S LMP7 an inducible beta-subunit of immunoproteasome was expressed only in the
1693CD68CD68 moleculeCD680.3neurons (stained stained with NeuN and microglia (stained stained with CD68
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3B immunoproteasome 20S LMP7 was expressed mainly in astrocytes and microglia
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3cord were used for immunohistochemistry with rabbit polyclonal anti-proteasome 20S LMP7 (dilution dilution 1 500 Abcam or rabbit polyclonal anti-proteasome 20S
1693CD68CD68 moleculeCD680.3CA monoclonal NeuN (dilution dilution 1 500 Chemicon or monoclonal CD68 (dilution dilution 1 500 Serotec Oxford UK antibodies
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD12.5Because SOD1 is a major contributor to the cellular Cu concentration copper
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3spinal cord we used immunoblotting for 20S X and 20S LMP7 markers of constitutive and inducible proteasome respectively
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3Instead the expression of immunoproteasome measured by immunoblotting for 20S LMP7 an inducible beta subunit was strongly increased in the spinal
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3The amount of LMP7 protein was increased 6-fold between 8 and 16 weeks of
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3PDTC treatment completely prevented the induction of 20S LMP7 at the end stage of G93A-SOD1 TG rats (1476 1476
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3It is noteworthy that in WT animals 20S LMP7 was barely detectable or undetectable in the cytosolic fraction (
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0PDTC also increased the levels of astrocyte-specific glutamate transporter (GLT-1) GLT-1
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0the spinal cords of untreated TG rats the levels of GLT-1 were decreased whereas in PDTC-treated TG rats the levels of
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2GLT-11.0were decreased whereas in PDTC-treated TG rats the levels of GLT-1 were at the same levels as in WT rats (
9545PSMB8proteasome (prosome, macropain) subunit, beta type, 8 (large multifunctional peptidase 7)LMP72.3Double-labeling immunohistochemistry with confocal imaging showed that the immunoproteasome 20S LMP7 was expressed in astrocytes and microglia ( Fig 7B whereas
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.6dithiocarbamate ALS amyotrophic lateral sclerosis EMSA electrophoretic mobility shift assay NF-kappaB nuclear factor kappaB SOD superoxide dismutase WT wild type TG
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD2.2sclerosis EMSA electrophoretic mobility shift assay NF-kappaB nuclear factor kappaB SOD superoxide dismutase WT wild type TG transgenic GLT glutamate transporter
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase 11.0because inflammation and oxidative damage are also hallmarks of amyotrophic lateral sclerosis als we studied the effect of oral pdtc treatment on g93a superoxide dismutase 1 sod1 transgenic tg rat model of human als and observed that pdtc treatment significantly decreases the survival.
5992IL1Binterleukin 1, betainterleukin 1 beta1.0r use in the treatment of aids reisinger et al. 1990 kappa b nf kappab that regulates the expression of several proinflammatory genes and some genes related to apoptosis schreck et al. 1992 alpha and interleukin 1 beta nurmi et al. 2004a beta signaling nurmi et al. 2006 .
2524CTRLchymotrypsin-likechymotrypsin like1.0proteasomal activity was measured from cytosolic fractions of the spinal cord samples as chymotrypsin like activity by cleavage of n succinyl leu leu val tyr 7 amino 4 methylcoumarin sigma .
399ALBalbuminserum albumin1.0proteasomal activity was measured in aliquots of 10 microg of protein in 50 microl volume of assay buffer 20 mm tris hcl ph 7.5 1 mm atp 2 mm mgcl 2 and 0.1% bovine serum albumin containing 100 microm n succinyl leu leu val tyr 7 amino 4 methylcoumarin .
10417RPS27Aribosomal protein S27aubiquitin1.0polyclonal anti proteasome 20s x dilution 1:1000; abcam rabbit polyclonal anti glt 1 dilution 1:1000; calbiochem la jolla ca monoclonal anti beta actin dilution 1:4000 sigma or rabbit polyclonal anti ubiquitin antibodies dilution 1:1000; dakocytomation denmark a/s glostrup denmark and horseradish peroxidase labeled anti mouse igg dilution 1:4000; ge healthcare or horseradish peroxidase labeled anti rabbit
132ACTBactin, betabeta actin1.0easome 20s lmp7 dilution 1:1000; abcam cambridge uk rabbit polyclonal anti proteasome 20s x dilution 1:1000; abcam rabbit polyclonal anti glt 1 dilution 1:1000; calbiochem la jolla ca monoclonal anti beta actin dilution 1:4000 sigma or rabbit polyclonal anti ubiquitin antibodies dilution 1:1000; dakocytomation denmark a/s glostrup denmark and horseradish peroxidase labeled anti mouse igg dilution 1:4000; ge
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0structions and immunostained using rabbit polyclonal anti proteasome 20s lmp7 dilution 1:1000; abcam cambridge uk rabbit polyclonal anti proteasome 20s x dilution 1:1000; abcam rabbit polyclonal anti glt 1 dilution 1:1000; calbiochem la jolla ca monoclonal anti beta actin dilution 1:4000 sigma or rabbit polyclonal anti ubiquitin antibodies dilution 1:1000; dakocytomation denmark a/s glostrup denmark an
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)nf kappa b1.0the effect of pdtc was not mediated through nf kappa b inhibition.
5992IL1Binterleukin 1, betainterleukin 1 beta1.0ranscription factor nf kappab serving as a strong antioxidant or by activating akt gsk3 beta pathway cuzzocrea et al. 2002 kappab driven genes such as cyclooxygenase 2 tumor necrosis factor alpha and interleukin 1 beta drachman et al. 2002 beta pathway reduced mutant sod1 mediated motor neuron cell death in vitro koh et al. 2005 we found that pdtc treatment does not provide protection but instead significantly decr
11892TNFtumor necrosis factor (TNF superfamily, member 2)tumor necrosis factor alpha1.0y inhibiting the activation of transcription factor nf kappab serving as a strong antioxidant or by activating akt gsk3 beta pathway cuzzocrea et al. 2002 kappab driven genes such as cyclooxygenase 2 tumor necrosis factor alpha and interleukin 1 beta drachman et al. 2002 beta pathway reduced mutant sod1 mediated motor neuron cell death in vitro koh et al. 2005 we found that pdtc treatment does not provide protection but ins
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0the fact that pdtc treatment prevented the reduction of the glutamate transporter glt 1 a potential therapeutic target verified in numerous animal studies of als gurney et al. 1996 ; howland et al. 2002 and that pdtc treatment did not induce toxic side effects in the tg or wt rats the n
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0ducts in rat peripheral nerves calviello et al. 2005 beta lactams such as ceftriaxone which have been reported to be neuroprotective in models of als by increasing expression of glutamate transporter glt 1 rothstein et al. 2005 beta lactams because it significantly increases the expression of glt 1 and cu concentration in the spinal cord we hypothesize that even though beta lactams and pdtc might both
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0 rothstein et al. 2005 beta lactams because it significantly increases the expression of glt 1 and cu concentration in the spinal cord we hypothesize that even though beta lactams and pdtc might both be able to modulate glt 1 and cu concentration only pdtc but not beta lactams inhibits immunop
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0 and cu concentration in the spinal cord we hypothesize that even though beta lactams and pdtc might both be able to modulate glt 1 and cu concentration only pdtc but not beta lactams inhibits immunoproteasome because induction of immunoproteasome may be a rather selective characteristic for als models compared with models of isc
990BCL2B-cell CLL/lymphoma 2bcl 21.0ed with tissue and cellular protection inhibition of nf kappab may also accelerate neurodegeneration because of the survivalsupporting role of some nf kappab regulated genes such as manganese sod and bcl 2 mattson and camandola 2001 kappab binding activity in the spinal cords of g93a sod1 tg rats no statistically significant differences between any of the untreated/pdtc treated tg and wt rat groups wer
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0in summary we report that pdtc a multipotent drug providing protection in various animal models by inhibiting nf kappab acting as an antioxidant and activating akt gsk3 beta pathway also induces glt 1 a potential drug target in brain diseases.
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0pdtc led to decreased immunoproteasome levels and increased glt 1 levels in tg rats at the end stage whereas pdtc had no effect on the levels of constitutive proteasome immunoproteasome or glt 1 in wt rats.
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0pdtc also had an effect on the levels of astrocyte specific glutamate transporter glt 1 .
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0a and c in the spinal cords of untreated tg rats the levels of glt 1 were decreased whereas in pdtc treated tg rats the levels of glt 1 were at the same levels as in wt rats. p _lt_ 0.05 n = 5 results shown are mean _amp_#177; s.d.
4235GFAPglial fibrillary acidic proteinglial fibrillary acidic protein1.0a constitutive proteasome 20s x was expressed in astrocytes stained with glial fibrillary acidic protein neurons stained with neun and microglia stained with cd68 .
4235GFAPglial fibrillary acidic proteinglial fibrillary acidic protein1.0immunohistochemistry with rabbit polyclonal anti proteasome 20s lmp7 dilution 1:500; abcam or rabbit polyclonal anti proteasome 20s x antibodies dilution 1:500; abcam and with cell markers monoclonal glial fibrillary acidic protein dilution 1:500; chemicon temecula ca monoclonal neun dilution 1:500; chemicon or monoclonal cd68 dilution 1:500; serotec oxford uk antibodies.
2524CTRLchymotrypsin-likechymotrypsin like1.0to find out whether proteasomal activity is changed in g93a sod1 tg rats or by pdtc treatment we measured chymotrypsin like activity in the spinal cord tissues.
2524CTRLchymotrypsin-likechymotrypsin like1.0chymotrypsin like activity was approximately on the same level in untreated wt group 902 _amp_#177; 85 n = 5 and untreated g93a sod1 tg group at the presymptomatic stage 1015 _amp_#177; 167 n = 5 .
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0the changes in immunoproteasome levels after pdtc treatment were not due to common reduction of astroglial functions because pdtc also increased the levels of astrocyte specific glutamate transporter glt 1 .
10940SLC1A2solute carrier family 1 (glial high affinity glutamate transporter), member 2glt 11.0in the spinal cords of untreated tg rats the levels of glt 1 were decreased whereas in pdtc treated tg rats the levels of glt 1 were at the same levels as in wt rats fig 5 a and c .
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0abbreviations: pdtc pyrrolidine dithiocarbamate; als amyotrophic lateral sclerosis; emsa electrophoretic mobility shift assay; nf kappab nuclear factor kappab; sod superoxide dismutase; wt wild type; tg transgenic; glt glutamate transporter.