Anti-Hu CD11a Biotin

Anti-Hu CD11a Biotin

• 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. Blocking of LFA-1 function by specific antibodies or small molecules has become an important therapeutic approach in treatment of multiple inflammatory diseases. For example, humanized anti-LFA-1 antibody Efalizumab (Raptiva) is being used to interfere with T cell migration to sites of inflammation binding of cholesterol-lowering drug simvastatin to CD11a allosteric site leads to immunomodulation and increase in lymphocytic cholinergic activity.
• Specifications: The antibody MEM-25 reacts with an extracellular epitope of CD11a (alpha subunit of human LFA-1), a 170-180 kDa type I transmembrane glycoprotein expressed on B and T lymphocytes, monocytes, macrophages, neutrophils, basophils and eosinophils.
• CAS Number: 9007-83-4
• Certification: RUO
• Host: Mouse
• Species Reactivity: Human
• Immunogen: Leukocytes from a patient suffering from a LGL-type leukaemia.
• Target Antigen: CD11a
• Isotype: IgG1
• Clone: MEM-25
• Applications: Flow cytometry: Recommended dilution: 2-3 μg/mL.
• Validated Applications: FC, IP
• Concentration: 1 mg/mL
• Format: Biotin
• Buffer: Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide
• References & Citations: *Ottonello L, Epstein AL, Mancini M, Dapino P, Dallegri F: Monoclonal LYM-1 antibody-dependent cytolysis by human neutrophils exposed to GM-CSF: auto-regulation of target cell attack by cathepsin G. J Leukoc Biol. 2004 Jan75(1):99-105., URL: https://www.ncbi.nlm.nih.gov/pubmed/14525961?itool,*Simon SI, Cherapanov V, Nadra I, Waddell TK, Seo SM, Wang Q, Doerschuk CM, Downey GP: Signaling functions of L-selectin in neutrophils: alterations in the cytoskeleton and colocalization with CD18. J Immunol. 1999 Sep 1163(5):2891-901., URL: https://www.ncbi.nlm.nih.gov/pubmed/10453036?itool,*Osicka R, Osickova A, Hasan S, Bumba L, Cerny J, Sebo P: Bordetella adenylate cyclase toxin is a unique ligand of the integrin complement receptor 3. Elife. 2015 Dec 94:e10766., URL: https://www.ncbi.nlm.nih.gov/pubmed/26650353 ,*Aubert M, Yoon M, Sloan DD, Spear PG, Jerome KR: The virological synapse facilitates herpes simplex virus entry into T cells. J Virol. 2009 Jun83(12):6171-83., URL: http://www.ncbi.nlm.nih.gov/pubmed/19339346?itool=,*Ottonello L, Epstein AL, Dapino P, Barbera P, Morone P, Dallegri F: Monoclonal Lym-1 antibody-dependent cytolysis by neutrophils exposed to granulocyte-macrophage colony-stimulating factor: intervention of FcgammaRII (CD32), CD11b-CD18 integrins, and CD66b glycoproteins. Blood. 1999 May 1593(10):3505-11., URL: http://www.ncbi.nlm.nih.gov/pubmed/10233903?itool=,*Mathison RD, Befus AD, Davison JS, Woodman RC: Modulation of neutrophil function by the tripeptide feG. BMC Immunol. 2003 Mar 44:3. Epub 2003 Mar 4., URL: http://www.ncbi.nlm.nih.gov/pubmed/12659660?itool=,*Garnotel R, Rittié L, Poitevin S, Monboisse JC, Nguyen P, Potron G, Maquart FX, Randoux A, Gillery P: Human blood monocytes interact with type I collagen through alpha x beta 2 integrin (CD11c-CD18, gp150-95). J Immunol. 2000 Jun 1164(11):5928-34., URL: http://www.ncbi.nlm.nih.gov/pubmed/10820275?itool=,*Wang JH, Kwas C, Wu L: Intercellular adhesion molecule 1 (ICAM-1), but not ICAM-2 and -3, is important for dendritic cell-mediated human immunodeficiency virus type 1 transmission. J Virol. 2009 May83(9):4195-204., URL: http://www.ncbi.nlm.nih.gov/pubmed/19211748?itool=,*Hajishengallis G, Martin M, Sojar HT, Sharma A, Schifferle RE, DeNardin E, Russell MW, Genco RJ: Dependence of bacterial protein adhesins on toll-like receptors for proinflammatory cytokine induction. Clin Diagn Lab Immunol. 2002 Mar9(2):403-11., URL: https://www.ncbi.nlm.nih.gov/pubmed/11874886?itool,*Leukocyte Typing IV., Knapp W. et al. (Eds.), Oxford University Press (1989)., URL: ,*Bazil V, Stefanova I, Hilgert I, Kristofova H, Vanek S, Horejsi V.: Monoclonal antibodies against human leucocyte antigens. IV. Antibodies against subunits of the LFA-1 (CD11a/CD18) leucocyte-adhesion glycoprotein. Folia Biol (Praha). 199036(1):41-50., URL: https://www.ncbi.nlm.nih.gov/pubmed/1971601?dopt=A,
• Other References: *Sarantos MR, Raychaudhuri S, Lum AF, Staunton DE, Simon SI: Leukocyte function-associated antigen 1-mediated adhesion stability is dynamically regulated through affinity and valency during bond formation with intercellular adhesion molecule-1. J Biol Chem. 2005 Aug 5280(31):28290-8., URL: https://pubmed.ncbi.nlm.nih.gov/15955822/,*Giblin PA, Lemieux RM: LFA-1 as a key regulator of immune function: approaches toward the development of LFA-1-based therapeutics. Curr Pharm Des. 200612(22):2771-95., URL: https://pubmed.ncbi.nlm.nih.gov/16918410/,*Kellersch B, Kolanus W: Membrane-proximal signaling events in beta-2 integrin activation. Results Probl Cell Differ. 200643:245-57., URL: https://pubmed.ncbi.nlm.nih.gov/17068975/,*Fujii T, Takada-Takatori Y, Kawashima K: Roles played by lymphocyte function-associated antigen-1 in the regulation of lymphocytic cholinergic activity. Life Sci. 2007 May 3080(24-25):2320-4., URL: https://pubmed.ncbi.nlm.nih.gov/17289088/,
• Storage Conditions: Store at 2-8°C. Do not freeze.