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Questions? Please consult our answers to frequently asked questions at http://www.ebioscience.com/faq. DescriptionThe BM8 monoclonal antibody reacts with mouse F4/80 antigen, an approximately 125 kDa transmembrane protein. The F4/80 antigen is expressed by a majority of mature macrophages and is the best marker for this population of cells. However, other cell types such as Langerhans cells and liver Kupffer cells have been reported to express this antigen. Expression of F4/80 commences during early myeloid development with approximately 30% of BM cells staining with BM8 and is upregulated on all BM cells stimulated in vitro with M-CSF. It has been shown that some cytokines downregulate the expression of F4/80 resulting in lack of F4/80 antigen on a subpopulation of macrophages, especially in the lymphoid microenvironment in vivo. Applications ReportedFor research use only, not for diagnostic or therapeutic use. This BM8 antibody has been reported for use in flow cytometric analysis. The photo-emission properties and compensation required for Alexa Fluor® 750 are similar to APC-Cy7; however Alexa Fluor® 750 has several advantages when compared to APC-Cy7. The Alexa Fluor® 750 has peak emission of 779 nm, and usually has a slightly higher mean fluorescent intensity when compared to the same clone conjugated with APC-Cy7, which has peak emission of 767 nm. Furthermore, Alexa Fluor® 750 is considered to be a more photostable fluorochrome as compared with APC-Cy7. It is advised not to use fixatives with Alexa Fluor® 750 as this may lead to degradation of the fluorochrome and loss of staining. Applications TestedThis BM8 antibody has been tested by flow cytometric analysis of mouse spleen and bone marrow cell suspensions. This can be used at less than or equal to 0.5 μg per million cells in a 100 μl total staining volume. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. References
Schaller E, Macfarlane AJ, Rupec RA, Gordon S, McKnight AJ, Pfeffer K. 2002. Inactivation of the F4/80 glycoprotein in the mouse germ line. Mol Cell Biol. 22(22):8035-43. Leenen PJ, de Bruijn MF, Voerman JS, Campbell PA, van Ewijk W. 1994. Markers of mouse macrophage development detected by monoclonal antibodies. J Immunol Methods. 174(1-2):5-19. Zwadlo G, Brocker EB, von Bassewitz DB, Feige U, Sorg C. 1985. A monoclonal antibody to a differentiation antigen present on mature human macrophages and absent from monocytes. J Immunol. 134(3):1487-92. Related ProductsCat. 27-4321 Allophycocyanin-Alexa Fluor® 750 (APC-Alexa Fluor® 750) Rat IgG2a Isotype Control (APC-Cy7 Equivalent) Alexa Fluor® and Pacific Blue® are registered trademarks of and licensed under patents assigned to Molecular Probes, Inc. for research use only. This product is subject to an agreement between Molecular Probes, Inc. and eBioscience, and the manufacture, use, sale or import of this product may be subject to one or more U.S. patents, pending applications and corresponding foreign equivalents, owned by Molecular Probes, Inc. (a wholly owned subsidiary of Invitrogen Corp). The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product for life science research or as an ASR. The buyer cannot use this product for manufacturing or for any other screening (specifically including use in combination with microarrays or High Content Screening) or testing purpose, other than as an ASR. For information on purchasing a license to this product for purposes other than life science research or use as an ASR, contact Molecular Probes, Inc. |
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