Human Leukocyte surface antigen CD47(CD47) ELISA kit

Instructions
Code CSB-EL004940HU
Size 96T,5×96T,10×96T
See More Details 24T ELISA kits trial application
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Product Details

Target Name CD47 molecule
Alternative Names Antigen identified by monoclonal ELISA Kit 1D8 ELISA Kit; Antigenic surface determinant protein OA3 ELISA Kit; CD 47 ELISA Kit; CD47 ELISA Kit; CD47 antigen (Rh-related antigen; integrin-associated signal transducer) ELISA Kit; CD47 antigen ELISA Kit; CD47 glycoprotein ELISA Kit; CD47 molecule ELISA Kit; CD47_HUMAN ELISA Kit; IAP ELISA Kit; Integrin Associated Protein ELISA Kit; Integrin associated signal transducer ELISA Kit; Integrin-associated protein ELISA Kit; Leukocyte surface antigen CD47 ELISA Kit; MER 6 ELISA Kit; MER6 ELISA Kit; OA 3 ELISA Kit; OA3 ELISA Kit; OTTHUMP00000041152 ELISA Kit; OTTHUMP00000041153 ELISA Kit; Protein MER6 ELISA Kit; Rh related antigen ELISA Kit; Surface antigen identified by monoclonal ELISA Kit 1D8 ELISA Kit
Abbreviation CD47
Uniprot No. Q08722
Species Homo sapiens (Human)
Sample Types serum, plasma, urine, tissue homogenates
Detection Range 3.12 pg/mL-200 pg/mL
Sensitivity 0.78 pg/mL
Assay Time 1-5h
Sample Volume 50-100ul
Detection Wavelength 450 nm
Research Area Immunology
Assay Principle quantitative
Measurement Sandwich
Precision
Intra-assay Precision (Precision within an assay): CV%<8%        
Three samples of known concentration were tested twenty times on one plate to assess.    
Inter-assay Precision (Precision between assays): CV%<10%        
Three samples of known concentration were tested in twenty assays to assess.      
               
Linearity
To assess the linearity of the assay, samples were spiked with high concentrations of human CD47 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.  
  Sample Serum(n=4)    
1:1 Average % 96    
Range % 90-101    
1:2 Average % 106    
Range % 102-109    
1:4 Average % 94    
Range % 90-98    
1:8 Average % 88    
Range % 85-94    
Recovery
The recovery of human CD47 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.  
 
Sample Type Average % Recovery Range    
Serum (n=5) 103 99-106    
EDTA plasma (n=4) 93 91-95    
               
               
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.  
 
pg/ml OD1 OD2 Average Corrected    
200 1.941 1.925 1.933 1.802    
100 1.640 1.519 1.580 1.449    
50 1.122 1.132 1.127 0.996    
25 0.674 0.624 0.649 0.518    
12.5 0.441 0.450 0.446 0.315    
6.25 0.301 0.327 0.314 0.183    
3.12 0.203 0.194 0.199 0.068    
0 0.133 0.128 0.131      
Troubleshooting
and FAQs
ELISA kit FAQs
Storage Store at 2-8°C. Please refer to protocol.
Lead Time 5-7 working days

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Target Data

Function Has a role in both cell adhesion by acting as an adhesion receptor for THBS1 on platelets, and in the modulation of integrins. Plays an important role in memory formation and synaptic plasticity in the hippocampus (By similarity). Receptor for SIRPA, binding to which prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells. Interaction with SIRPG mediates cell-cell adhesion, enhances superantigen-dependent T-cell-mediated proliferation and costimulates T-cell activation. May play a role in membrane transport and/or integrin dependent signal transduction. May prevent premature elimination of red blood cells. May be involved in membrane permeability changes induced following virus infection.
Gene References into Functions
  1. results suggest that cancers can evolve SE to drive CD47 overexpression to escape immune surveillance PMID: 28378740
  2. overexpression of human CD200 in donor pigs could constitute a promising strategy for overcoming xenograft rejection. PMID: 28968355
  3. High CD47 expression is associated with the increase in the ability of surviving breast cancer cells to evade innate and adaptive immunity. PMID: 29367423
  4. CD47 expression is decreased on the surface of erythrocytes in obese subjects. These changes in CD47 expression on the erythrocytes surface may be an adaptive response to hyperfibrinogenemia associated with obesity. PMID: 25914268
  5. Results show that the thrombospondin 1 (TSP1) and its receptor CD47 (CD47) axis selectively regulates NADPH oxidase 1 (Nox1) in the regulation of endothelial senescence and suggest potential targets for controlling the aging process at the molecular level. PMID: 29042481
  6. CD47 is overexpressed in primary non-small cell lung cancer (NSCLC) tissues and cell lines, suggesting that CD47 is a promising therapeutic target for NSCLC. PMID: 27411490
  7. Among the various candidate genes involved in acute rejection, CD47 inhibits monocyte/macrophage-mediated phagocytosis by identifying the CD47 signal regulatory protein alpha (SIRP-alpha) as self/non-self. Tissue factor pathway inhibitor (TFPI) is involved in the regulation of the coagulation pathway and is able to bind to another ligand of CD47, thrombospondin-1 (TSP-1). PMID: 28393401
  8. Blocking CD47 using antibodies could efficiently induce macrophage-mediated phagocytosis of tumor cells and treat cancers. PMID: 27863402
  9. High CD47 expression is not associated with Fibrolamellar Hepatocellular Carcinoma. PMID: 28801364
  10. TTI-621 (SIRPalphaFc) is a fully human recombinant fusion protein that blocks the CD47-SIRPalpha axis by binding to human CD47 and enhancing phagocytosis of malignant cells..These data indicate that TTI-621 is active across a broad range of human tumors. PMID: 27856600
  11. this review highlights the various functions of CD47, discusses anti-tumor responses generated by both the innate and adaptive immune systems as a consequence of administering anti-CD47 blocking antibody, and finally elaborates on the clinical potential of CD47 blockade. PMID: 28077173
  12. we observed neutrophilic infiltration was slightly increased in anti-CD47 treated tumors compared to IgG control. PMID: 28100392
  13. In pulmonary hypertension TSP1-CD47 is upregulated, and contributes to pulmonary arterial vasculopathy and dysfunction. PMID: 27742621
  14. thrombospondin-1 via CD47 inhibits renal tubular epithelial cell recovery after ischemia reperfusion injury through inhibition of proliferation/self-renewal. PMID: 27259369
  15. Engineering macrophages to eat cancer: from "marker of self" CD47 and phagocytosis to differentiation PMID: 28522599
  16. the results obtained by combining bioinformatics and preclinical studies strongly suggest that targeting TSP-1/CD47 axis may represent a valuable therapeutic alternative for hampering melanoma spreading. PMID: 27349907
  17. Results indicated that surgical resection combined with anti-CD47 blocking immunotherapy promoted an inflammatory response and prolonged survival in xenograft animal model, and is therefore an attractive strategy for clinical translation. PMID: 28076333
  18. Results show that the stronger expression of CD47 by cancer cells and larger number of total macrophages/M2 were independently related to shorter survivals. PMID: 27322955
  19. Prolongation of transient porcine chimerism via transgenic expression of human CD47 in a primate model is associated with an immune modulating effect, leading to markedly prolonged survival of donor swine skin xenografts. PMID: 27232934
  20. CD47 is a promising cancer biomarker, and targeting CD47 presents an effective and potential therapeutic strategy through synthesized mechanisms PMID: 26446381
  21. CD47 seems to mediate fusion mostly through broad contact surfaces between the partners' cell membrane while syncytin-1 mediate fusion through phagocytic-cup like structure. PMID: 27714815
  22. The results suggested a critical role of CD47 in laryngeal squamous cell carcinoma development. PMID: 27855370
  23. Data show that anti-human CD47 antibody B6H12 decreased expression of epidermal growth factor receptor (EGFR) and the stem cell transcription factors. PMID: 26840086
  24. suggest that microglial activation may be partially caused by CD47/signal regulatory protein-alpha- and CD200/CD200R-mediated reductions in the immune inhibitory pathways PMID: 27095555
  25. Our results highlight an underappreciated contribution of the adaptive immune system to anti-CD47 adjuvant therapy and suggest that targeting both innate and adaptive immune checkpoints can potentiate the vaccinal effect of antitumor antibody therapy. PMID: 27091975
  26. Data suggest a reduction in the CD47 antigen/signal-regulatory protein alpha (SIRPalpha) pathway by programmed cell death protein 1 (PD-1) blockade, which regulates Myeloid-derived suppressor cells (MDSCs) and tumor associated macrophages (TAMs). PMID: 26573233
  27. atherogenesis is associated with upregulation of CD47, a key anti-phagocytic molecule that is known to render malignant cells resistant to programmed cell removal, or 'efferocytosis' PMID: 27437576
  28. CD47 is a critical regulator in the metastasis of osteosarcoma and results suggest that targeted inhibition of this antigen by anti-CD47 may be a novel immunotherapeutic approach in the management of this tumor. PMID: 26093091
  29. agents that block the CD47:SIRP-alpha engagement are attractive therapeutic targets as a monotherapy or in combination with additional immune-modulating agents for activating antitumor T cells in vivo PMID: 26116271
  30. CD47 is an adverse prognostic factor and promising therapeutic target in gastric cancer. PMID: 26077800
  31. study demonstrates that antigen-presenting cells(CD47+) in coculture with human macrophages show a CD47 concentration-dependent inhibition of phagocytosis PMID: 25593301
  32. CD47 expression contributes to the lethal breast cancer phenotype that is mediated by HIF-1. PMID: 26512116
  33. CD47 is highly expressed on cancer stem cells, but not on other nonmalignant cells in the pancreas. PMID: 25717063
  34. CD47 mediates signaling from the extracellular matrix that coordinately regulates basal metabolism and cytoprotective responses to radiation injury PMID: 26311851
  35. CD47 has a central role in hydrogen sulfate biosynthesis, regulation and signaling in T cells. PMID: 25747479
  36. Loss of cell surface CD47 clustering formation and binding avidity to SIRPalpha facilitate apoptotic cell clearance by macrophages. PMID: 26085683
  37. While CD47 expression on circulating AML blasts has been shown to be a negative prognostic marker for a very defined population of AML patients with NK AML, CD47 expression on AML BM blasts is not PMID: 25943033
  38. Velcro" engineering of high affinity CD47 ectodomain as signal regulatory protein alpha (SIRPalpha) antagonists that enhance antibody-dependent cellular phagocytosis PMID: 25837251
  39. during translation of CD47, the scaffold function of the 3' UTR facilitates binding of proteins to nascent proteins, to direct their transport or function--and this role of 3' UTRs can be regulated by polyadenylation PMID: 25896326
  40. Report poor prognosis/survival in luminal breast cancer patients with circulating tumor cells co-expressing MET and CD47. PMID: 25230070
  41. Staphylococcal SElX and SSL6 proteins bind cell surface receptors PSGL-1 and CD47, respectively. PMID: 24840181
  42. The thrombospondin-1 receptor CD47 directly or indirectly regulates intercellular communication mediated by the transfer of extracellular vesicles between vascular cells. PMID: 24887393
  43. expression is induced following EBV infection of B cells; ligation cases G1 arres PMID: 24911792
  44. CD47 regulates the epigenetic code by targeting UHRF1. PMID: 25550546
  45. Elevated postinjury thrombospondin 1-CD47 triggering aids differentiation of patients' defective inflammatory CD1a+dendritic cells. PMID: 25001859
  46. the TSP-derived 4N1K peptide effects on cell adhesion and integrin activation are independent of CD47 PMID: 24848268
  47. CD47 associates with and regulates VEGFR2 in T cells. CD47 signaling modulates the ability of VEGF to regulate proliferation and TCR signaling, and autocrine production of vascular endothelial growth factor by T cells contributes to this regulation. PMID: 25200950
  48. Suppression of CD47 by morpholino approach suppressed growth of hepatocellular carcinoma in vivo and exerted a chemosensitization effect through blockade of CTSS/PAR2 signaling. PMID: 24523067
  49. CD47 plays the pivotal role in the immune evasion of primary effusion lymphoma cells in body cavities. Therapeutic antibody targeting of CD47 could be an effective therapy for PEL. PMID: 24726056
  50. Data indicate that CD47 in cis interactions regulate LFA-1 (integrin alphaLbeta2) and VLA-4 (integrin alpha4beta1) integrin affinity, and this process plays a substantial role in the adhesion of T-cells. PMID: 24006483

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Subcellular Location Cell membrane, Multi-pass membrane protein
Tissue Specificity Very broadly distributed on normal adult tissues, as well as ovarian tumors, being especially abundant in some epithelia and the brain.
Database Links

HGNC: 1682

OMIM: 601028

KEGG: hsa:961

STRING: 9606.ENSP00000355361

UniGene: Hs.446414

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