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Human CD208 / DC-LAMP / LAMP3 ELISA Pair Set

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Materials provided
Capture Ab:1 mg/mL of rabbit anti-LAMP3 monoclonal antibody, Dilute to a working concentration of 2.0 μg/mL in CBS before coating.
Detection Ab:0.5 mg/mL rabbit anti-LAMP3 monoclonal antibody conjugated to horseradish-peroxidase (HRP). Dilute to working concentration of 0.1 μg/mL in detection antibody dilution buffer before use.
Standard:Each vial contains 50 ng of recombinant LAMP3. Reconstitute standard powder with 1 mL detection antibody dilution buffer. After reconstitution, store at -20℃ to -80℃ 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 2000 pg/mL is recommended.
Sensitivity
The minimum detectable dose of Human CD208 / DC-LAMP / LAMP3 was determined to be approximately 31.25 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 CD208 / DC-LAMP / LAMP3 ELISA Pair Set is for the quantitative determination of Human CD208 / DC-LAMP / LAMP3.
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 CD208 / DC-LAMP / LAMP3 coated on a 96-well plate. Standards and samples are added to the wells, and any CD208 / DC-LAMP / LAMP3 present binds to the immobilized antibody. The wells are washed and a horseradish peroxidase conjugated rabbit anti-CD208 / DC-LAMP / LAMP3 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 CD208 / DC-LAMP / LAMP3 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 -80℃ 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 -80℃ and for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Standard: Store lyophilized Standard at -20℃ to -80℃ for up to 6 months from date of receipt. Aliquot and store the reconstituted Standard at -80℃ for up to 1 month. Avoid repeated freeze-thaw cycles.
Background

Dendritic cell-lysosomal associated membrane protein (DC-LAMP)/CD208, also known as LAMP3, is a member of the lysosomal associated membrane protein (LAMP) family, which is specifically expressed by human dendritic cells (DCs) upon activation and therefore serves as marker of human DC maturation. Confocal and immunoelectron microscopy showed that mouse DC-LAMP protein co-localizes with lbm180, a specific marker for the limiting membrane of lamellar bodies that contain surfactant protein B. The present study demonstrates that DC-LAMP is constitutively expressed by mouse, sheep, and human type II pneumocytes. DC-LAMP is constitutively expressed in normal type II pneumocytes. DC-LAMP is detected first in activated human DC within MHC class II molecules-containing compartments just before the translocation of MHC class II-peptide complexes to the cell surface, suggesting a possible involvement in this process. Furthermore, overexpression of LAMP3 is actively involved in tumor invasion through increased migration into lymph-vascular spaces.

References
  • Salaun B, et al. (2003) Cloning and characterization of the mouse homologue of the human dendritic cell maturation marker CD208/DC-LAMP. Eur J Immunol. 33(9): 2619-29.
  • Salaun B, et al. (2004) CD208/dendritic cell-lysosomal associated membrane protein is a marker of normal and transformed type II pneumocytes. Am J Pathol. 164(3): 861-71.
  • Ishigami S, et al. (2010) Prognostic value of CD208-positive cell infiltration in gastric cancer. Cancer Immunol Immunother. 59(3): 389-95.
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