CD25 antibodies

CD25 antibodies

Clone: 4E3
4E3 recognizes the human CD25 antigen, a 55 kDa glycoprotein also known as the low-affinity interleukin-2 receptor alpha chain (IL-2Rα). CD25 is expressed on activated T and B cells, on macrophages, and on a subset of non-activated CD4
+
regulatory T cells. The CD25 antigen contains three epitope regions called A, B, and C. This CD25 antibody recognizes epitope region B.

Applications

Reagent can be used for immunophenotyping by flow cytometry. Abnormal numbers of cells expressing this antigen or aberrant expression levels of the antigen can be expected in some disease states. It is important to understand the normal expression pattern for this antigen and its relationship to expression of other relevant antigens in order to perform appropriate analysis. Expression of CD25 may be used as aid to diagnostic in the characterization of samples from individuals suspected with hematologic neoplasia.

Alternative names

IL-2Rα, p55, Tac

Technical specifications

  • Antigen: CD25
  • Clone: 4E3
  • Isotype: mouse IgG2b
  • Alternative names of antigen: IL-2Rα, p55, Tac
  • Molecular mass of antigen [kDa]: 28
  • Distribution of antigen: B cells, basophils, lymphocytes, macrophages, monocytes, myeloid cells, NK cells, osteoblasts, T cells, thymocytes
  • Product format: Reagents are supplied in buffer containing stabilizer and 0.05% sodium azide.
  • Storage: Store protected from light at 2–8 °C. Do not freeze.
  • Available conjugates: PE, APC
  • Selected references

    1. Sakaguchi, S. et al. (1995) Immunologic self-tolerance maintained by activated T cells expressing IL-2 receptor α-chains (CD25). Breakdown of a single mechanism of self-tolerance causes various autoimmune diseases. J. Immunol. 155: 1151-1164
    2. Clinical and Laboratory Standards Institute (CLSI) (2007) Clinical Flow Cytometric Analysis of Neoplastic Hematolympoid Cells, CLSI document H43-A2 (ISBN 1-56238-635-2) CLSI; Approved Guideline - Second Edition
    3. Chaput, N. et al. (2013)
      Phase I clinical trial combining imatinib mesylate and IL-2: HLA-DR
      +
      NK cell levels correlate with disease outcome.
      Oncoimmunology 2(2): e23080
    4. Knapp, W. et al. (eds) Leukocyte Typing IV Oxford, Oxford University Press
    5. van Dongen, J. J. M. et al. (2012) EuroFlow antibody panels for standardized n-dimensional flow cytometric immunophenotyping of normal, reactive and malignant leukocytes. Leukemia 26(9): 1908-1975
    6. Rothe, G et al. (2012) Consensus protocol for the flow cytometric Immunophenotyping of hematopoietic malignancies. Leukemia 10(5): 877-895
    7. Stelzer GT et al. (1997) U.S.-Canadian consensus recommendations on the immunophenotypic analysis of hematologic neoplasia by flow cytometry: standardization and validation of laboratory procedures. Cytometry 30(5): 214-230
    8. Wood BL et al. (2007) 2006 Bethesda International Consensus recommendations on the immunophenotypic analysis of hematolymphoid neoplasia by flow cytometry: optimal reagents and reporting for the flow cytometric diagnosis of hematopoietic neoplasia. Cytometry B Clin. Cytom. 72: 14-22
    9. Shevach, E. M. (2001)
      Certified professionals: CD4
      +
      CD25
      +
      suppressor T cells.
      J. Exp. Med. 193(11): F41-F46
    10. Maloy, K. J. et al. (2001) Regulatory T cells in the control of immune pathology. Nat. Immunol. 2(9): 816-822
    11. Lamprecht, B. et al. (2008) Aberrant expression of the Tʜ2 cytokine IL-21 in Hodgkin lymphoma cells regulates STAT3 signaling and attracts Treg cells via regulation of MIP-3alpha. Blood 112(8): 3339-3347
    12. Clinical and Laboratory Standards Institute (CLSI) (2007) Enumeration of immunologically defined cell populations by flow cytometry, CLSI document H42-A2 (ISBN 1-56238-640-9) CLSI; Approved Guideline - Second Edition
  • Brochures and posters

  • Certificates

    Please follow this
    link
    to download the Certificate of Conformity (CoC) by lot number.
Product options: 2
170-078-021

CD25-PE

for 100
tests
-
170-078-063

CD25-APC

for 100
tests
-