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Human CD83 ELISA Pair Set

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Materials provided
Capture Ab:0.5 mg/mL of mouse anti-CD83 monoclonal antibody, Dilute to a working concentration of 2 μg/mL in CBS before coating.
Detection Ab:0.5 mg/mL mouse anti-CD83 monoclonal antibody conjugated to horseradish-peroxidase (HRP). Dilute to working concentration of 1 μg/mL in detection antibody dilution buffer before use.
Standard:Each vial contains 9 ng of recombinant CD83. Reconstitute with 1 mL detection antibody dilution buffer. After reconstitution, store at -20℃ to -70℃ in a manual defrost freezer. A seven-point standard curve usi ng 2-fold serial dilutions in sample dilution buffer, and a high standard of 200 pg/mL is recommended.
Sensitivity
The minimum detectable dose of Human CD83 was determined to be approximately 3.13 pg/ml. This is defined as at least three times standard deviations above the mean optical density of 10 replicates of the zero standard.
Principle of the product
The Human CD83 ELISA Pair Set is for the quantitative determination of Human CD83.
This ELISA Pair Set contains the basic components required for the development of sandwich ELISAs.
The Sino Biological ELISA Pair Set is a solid phase sandwich ELISA (Enzyme-Linked Immunosorbent Assay). It utilizes a monoclonal antibody specific for CD83 coated on a 96-well plate. Standards and samples are added to the wells, and any CD83 present binds to the immobilized antibody. The wells are washed and a horseradish peroxidase conjugated mouse anti-CD83 monoclonal antibody is then added, producing an antibody-antigen-antibody “sandwich”. The wells are again washed and TMB substrate solution is loaded, which produces color in proportion to the amount of CD83 present in the sample. To end the enzyme reaction, the stop solution is added and absorbances of the microwell are read at 450 nm.
Storage
Capture Antibody: Aliquot and store at -20℃ to -70℃ for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Detection Antibody: Protect it from prolonged exposure to light. Aliquot and store at -20℃ to -70℃ and for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Standard: Store lyophilized Standard at -20℃ to -70℃ for up to 6 months from date of receipt. Aliquot and store the reconstituted Standard at -20℃ to -70℃ for up to 1 month. Avoid repeated freeze-thaw cycles.
Background

The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. CD83 is considered as a marker of mature dendritic cells as well as an adhesion receptor that binds to resting monocytes and a subset of activated CD8+ T cells. In certain conditions, CD83 tended to dimerize or even multimerize through its aberrant intermolecular disulfide bonds. The injection of CD83-Ig can significantly enhaunce the rate of tumor growth and inhibit the T cell growth.

References
  • Zola H, et al. (2007) CD molecules 2006-human cell differentiation molecules. J Immunol Methods. 318 (1-2): 1-5.
  • Ho IC, et al. (2009) GATA3 and the T-cell lineage: essential functions before and after T-helper-2-cell differentiation. Nat Rev Immunol. 9 (2): 125-35.
  • Matesanz-Isabel J, et al. (2011) New B-cell CD molecules. Immunology Letters.134 (2): 104-12
  • Scholler N, et al.(2002) Cutting Edge: CD83 Regulates the Development of Cellular Immunity. The Journal of Immunology. 168 (6): 2599-602.
  • Lechmann M, et al.(2002) CD83 on dendritic cells: more than just a marker for maturation. Trends in immunology. 23(6): 273-5.
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