IHC shows positive staining in paraffin-embedded human tonsil. Anti-CD25/IL-2Rα antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
CD25/IL-2Rα Recombinant Rabbit mAb (S-R223)
CD25/IL-2Rα Recombinant Rabbit mAb (S-R223)
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Product Details
Product Details
Product Specification
| Host | Rabbit |
| Antigen | CD25/IL-2Rα |
| Synonyms | Interleukin-2 receptor subunit alpha, IL-2 receptor subunit alpha, IL-2-RA, IL-2R subunit alpha, IL2-RA, TAC antigen, p55, IL2RA |
| Location | Membrane |
| Accession | P01589 |
| Clone Number | S-R223 |
| Antibody Type | Recombinant mAb |
| Application | IHC-P, ICC |
| Reactivity | Hu |
| Purification | Protein A |
| Concentration | 0.5 mg/ml |
| Conjugation | Unconjugated |
| Physical Appearance | Liquid |
| Storage Buffer | PBS, 40% Glycerol, 0.05%BSA, 0.03% Proclin 300 |
| Stability & Storage | 12 months from date of receipt / reconstitution, -20 °C as supplied |
Dilution
| application | dilution | species |
| IHC | 1:500 | null |
| ICC | 1:500 | null |
Background
CD25 is expressed broadly among leukocytes. The highest surface expression of this protein is on regulatory T cells (Tregs), where CD25 is expressed constitutively, especially on a subset classified as naturally occurring Tregs. It can also be found on activated B cells, NK (natural killer) cells, thymocytes, and some myeloid lineage cells (e.g. macrophages, dendritic cells). L2RA has been used as a marker to identify CD4+FoxP3+ regulatory T cells in mice, and it has been found that a large proportion of resting memory T cells constitutively express IL2RA in humans. Levels of CD25 soluble form, called sIL-2Rα, has been connected to pathogenesis of autoimmune diseases and cancer. Since sCD25 is produced during immune activation, it is used as one of biomarkers to track disease progression and to indicate outcome for clinical disorders. Especially, it is a hallmark for hyper-activated immune system and cytokine storm, which may lead to multiple organ system failure.
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Immunohistochemistry
Negative control: IHC shows negative staining in paraffin-embedded human skeletal muscle. Anti-CD25/IL-2Rα antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human diffuse large B-cell lymphoma. Anti-CD25/IL-2Rα antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human Hodgkin’s lymphoma. Anti-CD25/IL-2Rα antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human gastric cancer. Anti-CD25/IL-2Rα antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
IHC shows positive staining in paraffin-embedded human cervical squamous cell carcinoma. Anti-CD25/IL-2Rα antibody was used at 1/500 dilution, followed by a HRP Polymer for Mouse & Rabbit IgG (ready to use). Counterstained with hematoxylin. Heat mediated antigen retrieval with Tris/EDTA buffer pH9.0 was performed before commencing with IHC staining protocol.
Immunocytochemistry
ICC shows positive staining in Jurkat cells. Anti- CD25/IL-2Rα antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Rabbit IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 4% PFA and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).
ICC shows positive staining in K562 cells. Anti- CD25/IL-2Rα antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Rabbit IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 4% PFA and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).
ICC shows positive staining in MOLT-4 cells. Anti- CD25/IL-2Rα antibody was used at 1/500 dilution (Green) and incubated overnight at 4°C. Goat polyclonal Antibody to Rabbit IgG - H&L (Alexa Fluor® 488) was used as secondary antibody at 1/1000 dilution. The cells were fixed with 4% PFA and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).
