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Cluster of differentiation 163 (CD163) is a receptor found exclusively on the surface of monocytes and macrophages. The solubilized form in plasma is upregulated in inflammatory diseases such as rheumatoid arthritis, atherosclerosis, and Gaucher’s disease, which coincides with recent studies that have found IL-10, glucocorticoids, and other inflammatory modulators to upregulate CD163 expression. CD163 staining is useful for differentiating synovial intimal fibroblasts from synovial macrophages in rheumatoid arthritis. Overexpression of CD163 is also present in patients with myelomonocytic leukemia dealing with microbial infections. CD163 expression is found in leukemias with monocytic differentiation, and synovial-type giant cell tumors of the vertebral column.
  • References
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    7. Hogger P, et al. J Immunol. 1998; 161:1883-90.
    8. Kristiansen M, et al. Nature. 2001; 409:198-201.


Clone IHC163
Source Mouse Monoclonal
Positive Control Inflamed Tissue
Dilution Range 1:50-1:200