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Rat Monoclonal to CD11a (mouse) / LFA-1 alpha chain

M17/4 (IgG2a)

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Background

CD11a (LFA-1 alpha) together with CD18 constitute leukocyte function-associated antigen 1 (LFA-1), the alphaLbeta2 integrin. CD11a is implicated in activation of LFA-1 complex. LFA-1 is expressed on the plasma membrane of leukocytes in a low-affinity conformation. Cell stimulation by chemokines or other signals leads to induction the high-affinity conformation, which supports tight binding of LFA-1 to its ligands, the intercellular adhesion molecules ICAM-1, -2, -3. LFA-1 is thus involved in interaction of various immune cells and in their tissue-specific settlement, but participates also in control of cell differentiation and proliferation and of T-cell effector functions.

Specificity

The rat monoclonal antibody M17/4 reacts with CD11a (alpha-subunit of murine LFA-1), a 180 kDa type I transmembrane glycoprotein expressed on B and T lymphocytes, monocytes, macrophages, neutrophils, basophils and eosinophils.

Regulatory Status

Immunogen

C57BL/6 mouse splenic secondary cytotoxic T lymphocytes

Species Reactivity:

  • Mouse

Negative Species:

Applications:

  • Flow Cytometry
    Recommended dilution: 1 μg/ml
  • Immunoprecipitation
  • Immunohistochemistry (frozen sections)
    Positive tissue:mouse spleen or thymus
    Application note:acetone fixation
  • Functional Application
    Blocking
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

Product Specific References

  • *Sanchez-Madrid F, Davignon D, Martz E, Springer TA: Antigens involved in mouse cytolytic T-lymphocyte (CTL)-mediated killing: functional screening and topographic relationship. Cell Immunol. 1982 Oct;73(1):1-11. [Abstract]
  • *Kuhlman P, Moy VT, Lollo BA, Brian AA: The accessory function of murine intercellular adhesion molecule-1 in T lymphocyte activation. Contributions of adhesion and co-activation. J Immunol. 1991 Mar 15;146(6):1773-82. [Abstract]
  • *Angelov GS, Guillaume P, Cebecauer M, Bosshard G, Dojcinovic D, Baumgaertner P, Luescher IF: Soluble MHC-peptide complexes containing long rigid linkers abolish CTL-mediated cytotoxicity. J Immunol. 2006 Mar 15;176(6):3356-65. [Abstract] [Full Text]
  • *Smith SS, Barnum SR: Differential expression of beta 2-integrins and cytokine production between gammadelta and alphabeta T cells in experimental autoimmune encephalomyelitis. J Leukoc Biol. 2008 Jan;83(1):71-9. [Abstract] [Full Text]
  • *Yung R, Powers D, Johnson K, Amento E, Carr D, Laing T, Yang J, Chang S, Hemati N, Richardson B: Mechanisms of drug-induced lupus. II. T cells overexpressing lymphocyte function-associated antigen 1 become autoreactive and cause a lupuslike disease in syngeneic mice. J Clin Invest. 1996 Jun 15;97(12):2866-71. [Abstract] [Full Text]
  • *Bellingan GJ, Xu P, Cooksley H, Cauldwell H, Shock A, Bottoms S, Haslett C, Mutsaers SE, Laurent GJ: Adhesion molecule-dependent mechanisms regulate the rate of macrophage clearance during the resolution of peritoneal inflammation. J Exp Med. 2002 Dec 2;196(11):1515-21. [Abstract] [Full Text]
  • *Beyer M, Wang H, Peters N, Doths S, Koerner-Rettberg C, Openshaw PJ, Schwarze J: The beta2 integrin CD11c distinguishes a subset of cytotoxic pulmonary T cells with potent antiviral effects in vitro and in vivo. Respir Res. 2005 Jul 12;6:70. [Abstract] [Full Text]
  • *Koseki S, Miura S, Fujimori H, Hokari R, Komoto S, Hara Y, Ogino T, Nagata H, Goto M, Hachimura S, Kaminogawa S, Ishii H: In situ demonstration of intraepithelial lymphocyte adhesion to villus microvessels of the small intestine. Int Immunol. 2001 Sep;13(9):1165-74. [Abstract] [Full Text]
  • *Papayannopoulou T, Priestley GV, Nakamoto B, Zafiropoulos V, Scott LM, Harlan JM: Synergistic mobilization of hemopoietic progenitor cells using concurrent beta1 and beta2 integrin blockade or beta2-deficient mice. Blood. 2001 Mar 1;97(5):1282-8. [Abstract] [Full Text]
  • *And many other.
  • For research use only. Not for drug, diagnostic or other use.

    Example Data

    M17-4

    Fig. 1. Surface staining of murine splenocytes using anti-CD11a monoclonal antibody (clone M17/4) purified.



    M17-4 FITC

    Fig. 2. Surface staining of murine monocytes using anti-CD11a monoclonal antibody (clone M17/4) FITC.

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