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Mouse Monoclonal to CD43 / Leukosialin

MEM-59 (IgG1)

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Background

CD43 (leukosialin, sialophorin) is a transmembrane mucin-like protein with high negative charge, expressed on the surface of most hematopoietic cells. CD43 contributes to a repulsive barrier that interferes with cellular adhesion, however, in certain cases also promotes leukocyte aggregation. By interaction with actin-binding proteins ezrin and moesin CD43 plays a regulatory role in remodeling T-cell morphology and regulates cell-cell interactions during lymphocyte traffic. CD43 signaling both enhances LFA-1 adhesiveness and counteracts LFA-1 induction via other receptors. Expression of CD43 causes induction of functionally active tumour suppressor p53 protein, but in case of p53 and ARF defficiency CD43 promotes tumour proliferation and viability. It appears to be an important modulator of leukocyte functions.

Specificity

The antibody MEM-59 recognizes neuraminidase-sensitive epitope on CD43 (Leukosialin), a 95-135 kDa type I transmembrane glycoprotein (mucin-type) which is involved in lymphocyte activation. CD43 is expressed by platelets and at high levels on the surface of all leukocytes; it is negative on resting B lymphocytes and erythrocytes.
HLDA IV; WS Code NL 604
HLDA V; WS Code AS S290

Regulatory Status

Immunogen

Human T lymphocytes.

Species Reactivity:

  • Human

Negative Species:

Applications:

  • Flow Cytometry
    Recommended dilution:1 μg/ml
  • Immunoprecipitation
  • Western Blotting
  • Immunohistochemistry (paraffin sections)
    Positive tissue:spleen, thymus, tonsil
    Recommended dilution:10 μg/ml
  • Functional Application
    The antibody MEM-59 activates T lymphocytes and also induces apoptosis in hemopoietic progenitor cells.
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

General references

  • *Stefanova I, Hilgert I, Kristofova H, Brown R, Low MG, Horejsi V: Characterization of a broadly expressed human leucocyte surface antigen MEM-43 anchored in membrane through phosphatidylinositol. Mol Immunol. 1989 nFeb;26(2):153-61. [Abstract]
  • *Kadaja L, Laos S, Maimets T: Overexpression of leukocyte marker CD43 causes activation of the tumor suppressor proteins p53 and ARF. Oncogene. 2004 Apr 1;23(14):2523-30. [Abstract]
  • *Khunkaewla P, Schiller HB, Paster W, Leksa V, Cermák L, Anděra L, Hořejší V, Stockinger H: LFA-1-mediated leukocyte adhesion regulated by interaction of CD43 with LFA-1 and CD147. Mol Immunol. 2007 Nov 8 [Abstract]
  • *Kadaja-Saarepuu L, Laos S, Jääger K, Viil J, Balikova A, Lõoke M, Hansson GC, Maimets T: CD43 promotes cell growth and helps to evade FAS-mediated apoptosis in non-hematopoietic cancer cells lacking the tumor suppressors p53 or ARF. Oncogene. 2007 Sep 24 [Abstract]
  • *Mody PD, Cannon JL, Bandukwala HS, Blaine KM, Schilling AB, Swier K, Sperling AI: Signaling through CD43 regulates CD4 T-cell trafficking. Blood. 2007 Oct 15;110(8):2974-82. [Abstract]
  • Product Specific References

  • *Stefanova I, Hilgert I, Angelisova P, Kristofova H, Horejsi V: Characterization of a 95 kDa human leucocyte sialoglycoprotein: its identity with CD43, gpL115, leukosialin and sialophorin. Folia Biol (Praha). 1988;34(4):255-65. [Abstract]
  • *Leukocyte Typing IV., Knapp W. et al. (Eds.), Oxford University Press (1989).
  • *Leukocyte Typing V., Schlossman S. et al. (Eds.), Oxford University Press (1995).
  • *Alvarado M, Klassen C, Cerny J, Horejsi V, Schmidt RE: MEM-59 monoclonal antibody detects a CD43 epitope involved in lymphocyte activation. Eur J Immunol. 1995 Apr;25(4):1051-5. [Abstract]
  • *Leukocyte Typing VI., Kishimoto T. et al. (Eds.), Garland Publishing Inc. (1997).
  • *Cermak L, Simova S, Pintzas A, Horejsi V, Andera L: Molecular mechanisms involved in CD43-mediated apoptosis of TF-1 cells. Roles of transcription Daxx expression, and adhesion molecules. J Biol Chem. 2002 Mar 8;277(10):7955-61. [Abstract] [Full Text]
  • *Simova S, Klima M, Cermak L, Sourkova V, Andera L: Arf and Rho GAP adapter protein ARAP1 participates in the mobilization of TRAIL-R1/DR4 to the plasma membrane. Apoptosis. 2008 Mar;13(3):423-36. [Abstract]
  • *Filatov AV, Krotov GI, Zgoda VG, Volkov Y: Fluorescent immunoprecipitation analysis of cell surface proteins: a methodology compatible with mass-spectrometry. J Immunol Methods. 2007 Jan 30;319(1-2):21-33. [Abstract]
  • *Schatzlmaier P, Supper V, Göschl L, Zwirzitz A, Eckerstorfer P, Ellmeier W, Huppa JB, Stockinger H: Rapid multiplex analysis of lipid raft components with single-cell resolution. Sci Signal. 2015 Sep 22;8(395):rs11 [Abstract]
  • For research use only. Not for drug, diagnostic or other use.

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  • Example Data


    MEM-59
    Fig. 1. Western Blotting

    Fig. 1. Western Blotting analysis (non-reducing conditions) of isolated peripheral blood lymphocytes of various species using anti-human CD43 (MEM-59).
    Lane 1: lysate of human PBL
    Lane 2: lysate of canine PBL
    Lane 3: lysate of porcine PBL

    MEM-59
    Fig. 2.

    Fig. 2. Immunohistochemistry staining of human spleen (paraffin sections) using anti-CD43 (MEM-59).
    Commercially tested by LifeSpan BioSciences.

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