Antibodies for Amyotrophic Lateral Sclerosis - FocusOn 133

Amyotrophic Lateral Sclerosis (ALS) is described as a neurodegenerative disease and characterized by degeneration of upper and lower motor neurons. ALS is specified by mid-to-late-life onset, selective neuronal death and the formation of protein deposits in affected neuronal tissues similar to other neurodegenerative diseases (Alzheimer's disease: FocusOn 130, Parkinson's disease: FocusOn 131, Huntington's disease: FocusOn 132). Sporadic cases of ALS occur with no family history of ALS. Familial ALS is due to inherited mutations spread throughout the SOD1 polypeptide.


Superoxide Dismutase (SOD)

SOD is an antioxidant enzyme and as such part of the defense system against reactive oxygen species. SOD catalyses the dismutation reaction of the superoxide radical anion (O2-) to hydrogen peroxide (H2O2) through glutathione reductase and catalase. Several classes of SODs have been identified, which include the intracellular copper/zinc SOD (Cu/Zn-SOD, SOD1), the mitochondrial manganese SOD (Mn-SOD, SOD2) and the extracellular copper/zinc SOD (ECSOD, SOD3).

SOD1 is found in all eukaryotic species as a homodimeric 32 kDa enzyme, which contains one Cu- and one Zn-ion each. SOD1 neutralizes supercharged oxygen molecules (superoxide radicals), which can damage cells if their levels are not controlled. The mechanism through which mutant SOD1 causes ALS is not known, but instability, misfolding and aggregation of mutant SOD1 is hypothesized. Biochemical markers of SOD1 misfolding have been noticed as early indicators of ALS. One such marker is the appearance of detergent insoluble precipitates of SOD1 which correlate well with disease onset and progression.


Fig. 1

Fig. 2
Fig. 1: Staining of mouse brain lysate with SOD1 antibody Cat.-No. AP16583PU-N
Fig. 2: Western blot analysis of SOD1 antibody (center) in Jurkat cell line lysates (35 µg/lane). SOD1 (arrow) was detected using the purified antibody Cat.-No. AP18205PU-N

TAR DNA-binding Protein 43 (TARDBP, TDP-43)

The cellular protein TARDBP functions as a DNA-binding protein and specifically binds to the TAR DNA sequence motifs of HIV. TARDBP protein has been identified as a major pathological protein of sporadic and familial frontotemporal lobar degeneration with ubiquitin-positive, tau-negative inclusions with or without motor neuron disease. Therefore, TARDBP defines a novel class of neurodegenerative diseases called TARDBP proteinopathies.


Fig. 3

Fig. 4
Fig. 3: Paraffin embedded sections of human prostate cancer were incubated with human TARDBP antibody Cat.-No. AM09038PU-N
Fig. 4: Formalin-fixed, paraffin-embedded (FFPE) breast tissue stained with TARDBP antibody Cat.-No. AP08534PU-N

Fig. 5

Fig. 6
Fig. 5: Cell lysates of HeLa were resolved by SDS-PAGE, transferred to NC membrane and probed with anti-human TARDBP antibody Cat.-No. AM09038PU-N
Fig. 6: Staining of Jurkat lysate with TARDBP antibody Cat.-No. AP16884PU-N

 

Key References

 
Cairns NJ et al, Jul 2007, Am J Pathol 171(1): 227-240
 
Eisen A et al, Apr 2008, Amyotroph Lateral Scler 9(2): 108-119
 
Geser F et al, Feb 2009, Arch Neurol 66(2): 180-189
 
Jonsson PA et al, Jan 2004, Brain 127(Pt 1): 73-88
 
Koyama S, 2006, Biochem Biophys Res Commun 343(3): 719-30
 
Pesirids, GS et al, Oct 2009, Hum Mol Genet 18(R2): R156-162
 
Proescher, JB et al, Jun 2008, Hum Mol Genet 17(12): 1728-1737
 
Valentine, JS et al, Apr 2003, Proc Natl Acad Sci USA100(7): 3617-3622

 

Further readings

See the PDF-version: FocusOn 133

Please refer also to other FocusOns in this series about Neurosciences

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Primary Antibodies

Catalog No. Host Iso. Clone Pres. React. Applications  

Superoxide Dismutase 1 / SOD1 antibody

Immunohistochemistry: AM01230PU-N SOD1 antibody staining of Formalin-Fixed, Paraffin-Embedded Human Liver at 15 µg/ml followed by biotinylated anti-mouse IgG secondary antibody, alkaline phosphatase-streptavidin and chromogen. Mouse IgG1 2F5 Purified Bov, Hu, Ms C, E, P
0.1 mg / €410.00
  Acris Antibodies GmbH

Superoxide Dismutase 1 / SOD1 antibody

Western blot analysis of SOD expression with Jurkat cell lysates (Lane 1, 2). Rabbit Aff - Purified Eq, GP, Hu, Ms, Rt C, IP, P, WB
0.1 mg / €370.00
  Acris Antibodies GmbH

Superoxide Dismutase 1 / SOD1 (Center) antibody

Western blot analysis of SOD1 Antibody (Center) (AP18205PU-N) in Jurkat cell line lysates (35ug/lane). SOD1 (arrow) was detected using the purified Pab. Rabbit Hu WB
0.4 ml / €370.00
  Acris Antibodies GmbH

Superoxide Dismutase 1 / SOD1 antibody

Superoxide Dismutase 1 / SOD1 Sheep IgG Purified Bov, Hu C, E
1 ml / €400.00
  Acris Antibodies GmbH

Superoxide Dismutase 1 / SOD1 antibody

Superoxide Dismutase 1 / SOD1 Rabbit IgG Aff - Purified Bov E, ICC/IF, ID, IP, R, WB
1 mg / €430.00
  Acris Antibodies GmbH

TARDBP antibody

Immunohistochemistry: Paraffin Embedded Sections of Human prostate cancer were incubated with anti-Human TARDBP antibody (1/50) for 2 hours at RT. Antigen retrieval was performed in 0.1 M sodium citrate buffer and detected using Diaminobenzidine (DAB). Mouse IgG1 k1B8 Purified Hu E, P, WB
50 µl / €230.00
  Acris Antibodies GmbH

TARDBP antibody

Breast: Formalin-Fixed Paraffin-Embedded (FFPE) Rabbit IgG Purified Hu, Ms, Rt P, WB
50 µg / €470.00
  Acris Antibodies GmbH

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