Anti-Human CD93 PE

Description: The monoclonal antibody R3 recognizes human CD93, also known as C1qRp. The glycoprotein CD93 binds to C1q, the subunit of the complement protein, mannose binding lectin and pulmonary surfactant protein A. CD93 is predicted to play a role in the clearance of apoptotic cells. Expression of CD93 is confined to myeloid cells with higher expression on monocytes than neutrophils, eosinophils, platelets and endothelial cells. Expression on DC’s is downregulated upon maturation. Additionally, CD93 has been shown to define an early bone marrow stem cell population of hematopoietic and hepatic precursors.
The R3 antibody has been shown to have activating function by increasing phagocytosis when presented in an immobilized state and inhibitory functions when presented in a soluble state. CD93 can be shed from the cell surface. This phenomenon can be measures using R3 antibody as detection with R139 as capture to detect soluble CD93 by ELISA. The epitope for R3 lies in the CRD domain.\\The R3 antibody has been shown to have activating function by increasing phagocytosis when presented in an immobilized state and inhibitory functions when presented in a soluble state. CD93 can be shed from the cell surface. This phenomenon can be measures using R3 antibody as detection with R139 as capture to detect soluble CD93 by ELISA. The epitope for R3 lies in the CRD domain.

References: Bohlson SS, Silva R, Fonseca MI, Tenner AJ. CD93 is rapidly shed from the surface of human myeloid cells and the soluble form is detected in human plasma. J Immunol. 2005 Jul 15;175(2):1239-47. (R3, ELISA, WB, PubMed)

Danet GH, Luongo JL, Butler G, Lu MM, Tenner AJ, Simon MC, Bonnet DA. C1qRp defines a new human stem cell population with hematopoietic and hepatic potential. Proc Natl Acad Sci U S A. 2002 Aug 6;99(16):10441-5.(R3, FC, PubMed)

Nepomuceno RR, Tenner AJ. C1qRP, the C1q receptor that enhances phagocytosis, is detected specifically in human cells of myeloid lineage, endothelial cells, and platelets. J Immunol. 1998 Feb 15;160(4):1929-35. (R3, FC, PubMed)