Exbio — Research products — Antibodies — CD and related antigens — Anti-Hu CD25 FITC

Anti-Hu CD25 FITC

Regulatory status

RUO

Antigen

CD25

Clone

MEM-181

Format

FITC

Reactivity

Human

Application

FC (QC tested)

Excitation laser

blue (488 nm)

Variant

100 tests

1F-218-T100

In stock

198.00 USD

25 tests

1F-218-T025

Delivery 1 week

99.00 USD

Variant

100 tests

1F-218-T100

In stock

198.00 USD

25 tests

1F-218-T025

Delivery 1 week

99.00 USD

Contact distributor

Product details

Description

Images

References

SDS download

Isotype

Mouse IgG1

Specificity

The antibody MEM-181 reacts with an extracellular epitope of CD25 (Interleukin-2 receptor alpha chain), a 55 kDa type I transmembrane glycoprotein expressed on activated B and T lymphocytes, activated monocytes/macrophages and on CD4+ T lymphocytes (T regulatory cells); it is lost on resting B and T lymphocytes.

Workshop

HLDA VI: WS Code NL N-L024

Application

FC (QC tested)

Application details

Flow cytometry: The reagent is designed for analysis of human blood cells using 20 μl reagent / 100 μl of whole blood or 10⁶ cells in a suspension. The content of a vial (2 ml) is sufficient for 100 tests.

Reactivity

Human

Immunogen

PHA-activated peripheral blood leucocytes

Preparation

Purified antibody is conjugated with fluorescein isothiocyanate (FITC) under optimum conditions and unconjugated antibody and free fluorochrome are removed by size-exclusion chromatography.

Formulation

Stabilizing phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide

Storage and handling

Store at 2-8°C. Protect from prolonged exposure to light. Do not freeze.

The product is intended For Research Use Only. Diagnostic or therapeutic applications are strictly forbidden. Products shall not be used for resale or transfer to third parties either as a stand-alone product or as a manufacture component of another product without written consent of EXBIO Praha, a.s. EXBIO Praha, a.s. will not be held responsible for patent infringement or any other violations of intellectual property rights that may occur with the use of the products. Orders for all products are accepted subject to the Term and Conditions available at www.exbio.cz. EXBIO, EXBIO Logo, and all other trademarks are property of EXBIO Praha, a.s.

Other names

IL-2R α chain, IL-2-RA, IL2-RA, p55, TAC antigen, IDDM10, TCGFR

Antigen description

CD25 (IL2Ralpha, Tac) is a ligand-binding alpha subunit of interleukin 2 receptor (IL2R). Together with beta and gamma subunit CD25 constitues the high affinity IL2R, whereas CD25 alone serves as the low affinity IL2R. CD25 expression rapidly increases upon T cell activation. The 55 kDa CD25 molecule is enzymatically cleaved and shed from the cell surface as a soluble 45 kDa s-Tac, whose concentration in serum can be used as a marker of T cell activation. Expression of CD25 indicates the neoplastic phenotype of mast cells. Humanized anti CD25 antibodies represent a useful tool to reduce the incidence of allograft rejection as well as the severity of graft versus host reaction, and radioimmunoconjugates of anti-CD25 antibodies can be used against CD25 expressing lymphomas.

Entrez Gene ID 3559

UniProt ID P01589

Flow cytometry analysis (surface staining) of human PBMC with anti-human CD25 (MEM-181) FITC. The mononuclear cells were isolated from human peripheral blood, devided in aliquots for duplicate analysis and stimulated with PHA for 2 days. Panel A, C – staining with anti-human CD25 (MEM-181) Panel B, D – staining with a standard anti-CD25 monoclonal antibody

General references:

Sotlar K, Horny HP, Simonitsch I, Krokowski M, Aichberger KJ, Mayerhofer M, Printz D, Fritsch G, Valent P: CD25 indicates the neoplastic phenotype of mast cells: a novel immunohistochemical marker for the diagnosis of systemic mastocytosis (SM) in routinely processed bone marrow biopsy specimens. Am J Surg Pathol. 2004 Oct;28(10):1319-25.
PubMed

Morris JC, Waldmann TA: Advances in interleukin 2 receptor targeted treatment. Ann Rheum Dis. 2000 Nov;59 Suppl 1:i109-14.
PubMed

Scheibenbogen C, Keilholz U, Richter M, Andreesen R, Hunstein W: The interleukin-2 receptor in human monocytes and macrophages: regulation of expression and release of the alpha and beta chains (p55 and p75). Res Immunol. 1992 Jan;143(1):33-7.
PubMed

Lai KN, Leung JC, Lai FM: Soluble interleukin 2 receptor release, interleukin 2 production, and interleukin 2 receptor expression in activated T-lymphocytes in vitro. Pathology. 1991 Jul;23(3):224-8.
PubMed

Product specific references:

Drbal K, Moertelmaier M, Holzhauser C, Muhammad A, Fuertbauer E, Howorka S, Hinterberger M, Stockinger H, Schütz GJ: Single-molecule microscopy reveals heterogeneous dynamics of lipid raft components upon TCR engagement. Int Immunol. 2007 May;19(5):675-84.
PubMed

Černý V, Hrdý J, Novotná O, Petrásková P, Boráková K, Kolářová L, Prokešová L: Distinct characteristics of Tregs of newborns of healthy and allergic mothers. PLoS One. 2018 Nov 26;13(11):e0207998.
PubMed

Černý V, Novotná O, Petrásková P Hudcová K, Boráková K, Prokešová L, Kolářová L, Hrdý J: Lower functional and proportional characteristics of cord blood treg of male newborns compared with female newborns. Biomedicines 2021, 9, 170.
PubMed