F4/80 Antibody (CI-A3-1) [Alexa Fluor® 750]

Alexa Fluor (R) products are provided under an intellectual property license from Life Technologies Corporation. The purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: (i) in manufacturing; (ii) to provide a service, information, or data in return for payment; (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@lifetech.com. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

F4/80 antigen is a cell surface glycoprotein that is the murine homolog of human EGF-like module-containing mucin-like hormone receptor-like 1 (EMR1) (1,2). Specifically, F4/80 (EMR1) is one of five members belonging to the adhesion G-coupled receptor (ADGRE) subfamily, also known as the epidermal growth factor seven transmembrane (EGF-TM7) receptors (1,2). F4/80 is expressed by the myeloid lineage including in eosinophils, monocytes, macrophages, and myeloid dendritic cells (1,2). The molecular structure of F4/80 contains an EGF-like extracellular domain and a seven transmembrane motif, with a theoretical molecular weight of 160 kDa (1).

Depending on factors such as differentiation, activation, and location, the level of F4/80 expression can vary between cell-types (1,2). For example, peritoneal macrophages are subdivided based on morphology and expression with large peritoneal macrophages having high levels of F4/80 and small peritoneal macrophages having low F4/80 expression (1). Furthermore, splenic macrophages are classified based on location (red pulp, marginal zone, and white pulp) and F4/80 expression level varies within these populations as well; the red pulp macrophages have high levels of F4/80 and CD68 by comparison (1). Originally, the F4/80 monoclonal antibody was generated for a macrophage-specific surface antigen, however F4/80 staining is also observed in other hematopoietic cell populations, thus other immune cell markers should be used in conjunction with F4/80 to distinguish between different populations (1). Though the full extent of F4/80 ligands and biological functions remains elusive, studies have suggested that F4/80 is critical for macrophage-natural killer cell interaction and cytokine release (1,2). Additionally, a study of anterior chamber-associated immune deviation (ACAID) indicated a possible role for F4/80 in the generation of regulatory T cells (1,2).

References

1. Dos Anjos Cassado A. (2017). F4/80 as a Major Macrophage Marker: The Case of the Peritoneum and Spleen. Results and Problems in Cell Differentiation. https://doi.org/10.1007/978-3-319-54090-0_7

2. Hamann, J., Hsiao, C. C., Lee, C. S., Ravichandran, K. S., & Lin, H. H. (2016). Adhesion GPCRs as Modulators of Immune Cell Function. Handbook of Experimental Pharmacology. https://doi.org/10.1007/978-3-319-41523-9_15

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Array NB600-404AF750

• F4/80 Antibodies