Anti-Hu CD11b Purified Low Endotoxin

CD11b (integrin alphaM subunit) is a 165-170 kDa type I transmembrane glycoprotein that non-covalently associates with integrin beta2 subunit (CD18) ; expression of the CD11b chain on the cell surface requires the presence of the CD18 antigen. CD11b/CD18 integrin (Mac-1, CR3) is highly expressed on NK cells, neutrophils, monocytes and less on macrophages. CD11b/CD18 integrin is implicated in various adhesive interactions of monocytes, macrophages and granulocytes, facilitating their diapedesis, as well as it mediates the uptake of complement coated particles, serving as a receptor for the iC3b fragment of the third complement component.

Product Specifications

Certification

RUO

Reactivity

Human, Non-human primates

Immunogen

Rheumatoid synovial cells and human monocytes.

Target Antigen

CD11b

Clone

ICRF44

Applications

FC (QC tested), IP, IHC-F, ICC, FUNC

Concentration

1 mg/mL

Format

Purified Low Endotoxin

Buffer

Phosphate buffered saline (PBS), pH 7.4

References & Citations

*Machacek C, Supper V, Leksa V, Mitulovic G, Spittler A, Drbal K, Suchanek M, Ohradanova-Repic A, Stockinger H: Folate Receptor β Regulates Integrin CD11b/CD18 Adhesion of a Macrophage Subset to Collagen. J Immunol. 2016 Sep 15;197 (6) :2229-38., URL: https://www.ncbi.nlm.nih.gov/pubmed/27534550 , *Hua J, Sakamoto K, Nagaoka I: Inhibitory actions of glucosamine, a therapeutic agent for osteoarthritis, on the functions of neutrophils. J Leukoc Biol. 2002 Apr;71 (4) :632-40., URL: https://www.ncbi.nlm.nih.gov/pubmed/11927650, *Sánchez-Torres C, García-Romo GS, Cornejo-Cortés MA, Rivas-Carvalho A, Sánchez-Schmitz G: CD16+ and CD16- human blood monocyte subsets differentiate in vitro to dendritic cells with different abilities to stimulate CD4+ T cells. Int Immunol. 2001 Dec;13 (12) :1571-81., URL: https://www.ncbi.nlm.nih.gov/pubmed/11717198, *Masten BJ, Olson GK, Tarleton CA, Rund C, Schuyler M, Mehran R, Archibeque T, Lipscomb MF: Characterization of myeloid and plasmacytoid dendritic cells in human lung. J Immunol. 2006 Dec 1;177 (11) :7784-93., URL: https://www.ncbi.nlm.nih.gov/pubmed/17114449, *Tieu BC, Lee C, Sun H, Lejeune W, Recinos A 3rd, Ju X, Spratt H, Guo DC, Milewicz D, Tilton RG, Brasier AR: An adventitial IL-6/MCP1 amplification loop accelerates macrophage-mediated vascular inflammation leading to aortic dissection in mice. J Clin Invest. 2009 Dec;119 (12) :3637-51., URL: https://www.ncbi.nlm.nih.gov/pubmed/19920349, *Rezzonico R, Imbert V, Chicheportiche R, Dayer JM: Ligation of CD11b and CD11c beta (2) integrins by antibodies or soluble CD23 induces macrophage inflammatory protein 1alpha (MIP-1alpha) and MIP-1beta production in primary human monocytes through a pathway dependent on nuclear factor-kappaB. Blood. 2001 May 15;97 (10) :2932-40., URL: https://www.ncbi.nlm.nih.gov/pubmed/11342414

Other References

*Hentzen ER, Neelamegham S, Kansas GS, Benanti JA, McIntire LV, Smith CW, Simon SI. Sequential binding of CD11a/CD18 and CD11b/CD18 defines neutrophil capture and stable adhesion to intercellular adhesion molecule-1. Blood. 2000 Feb 1;95 (3) :911-20., URL: https://pubmed.ncbi.nlm.nih.gov/10648403/, *Lawrence PK, Srikumaran S: CD11b of Ovis canadensis and Ovis aries: molecular cloning and characterization. Vet Immunol Immunopathol. 2007 Oct 15;119 (3-4) :287-98., URL: https://pubmed.ncbi.nlm.nih.gov/17628696/, *Akramiene D, Kondrotas A, Didziapetriene J, Kevelaitis E: Effects of beta-glucans on the immune system. Medicina (Kaunas) . 2007;43 (8) :597-606., URL: https://pubmed.ncbi.nlm.nih.gov/17895634/

Storage Conditions

Store at 2-8°C. Do not freeze.

Specificity

The mouse monoclonal antibody ICRF44 recognizes an extracellular epitope of CD11b (Mac-1alpha), a 165-170 kDa type 1 transmembrane protein mainly expressed on monocytes, granulocytes and NK-cells.