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  4. Human Roundabout homolog 4(ROBO4) ELISA kit

Human Roundabout homolog 4(ROBO4) ELISA kit

  • 中文名称：
    人环形交叉轴突导向受体同源物4(ROBO4)酶联免疫试剂盒
  • 货号：
    CSB-EL020057HU
  • 规格：
    96T/48T
  • 价格：
    ￥3600/￥2500
  • 其他：

产品详情

  • 产品描述：

    This Human ROBO4 ELISA Kit was designed for the quantitative measurement of Human ROBO4 protein in serum, plasma, tissue homogenates, cell culture supernates, urine. It is a Sandwich ELISA kit, its detection range is 62.5 pg/mL-4000 pg/mL and the sensitivity is 15.6 pg/mL .

  • 别名：
    ECSM4 ELISA Kit; FLJ20798 ELISA Kit; Magic roundabout ELISA Kit; MGC133352 ELISA Kit; MGC133353 ELISA Kit; MRB ELISA Kit; Robo 4 ELISA Kit; ROBO4 ELISA Kit; ROBO4_HUMAN ELISA Kit; Roundabout homolog 4 ELISA Kit; Roundabout homolog 4 magic roundabout ELISA Kit; Roundabout homolog 4 Precursor ELISA Kit; Roundabout, axon guidance receptor, homolog 4 (Drosophila) ELISA Kit
  • 缩写：
    ROBO4
  • Uniprot No.：
  • 种属：
    Homo sapiens (Human)
  • 样本类型：
    serum, plasma, tissue homogenates, cell culture supernates, urine
  • 检测范围：
    62.5 pg/mL-4000 pg/mL
  • 灵敏度：
    15.6 pg/mL
  • 反应时间：
    1-5h
  • 样本体积：
    50-100ul
  • 检测波长：
    450 nm
  • 研究领域：
    Cancer
  • 测定原理：
    quantitative
  • 测定方法：
    Sandwich
  • 精密度：
    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.
  • 线性度：
    To assess the linearity of the assay, samples were spiked with high concentrations of human ROBO4 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
    　SampleSerum(n=4)
    1:1Average %90
    Range %87-96
    1:2Average %95-102
    Range %91-104
    1:4Average %86
    Range %81-92
    1:8Average %93
    Range %90-97
  • 回收率：
    The recovery of human ROBO4 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 TypeAverage % RecoveryRange
    Serum (n=5) 9087-95
    EDTA plasma (n=4)9389-97
  • 标准曲线：
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
    pg/mlOD1OD2AverageCorrected
    40002.113 2.099 2.106 2.004
    20001.364 1.321 1.343 1.241
    10000.801 0.789 0.795 0.693
    5000.491 0.467 0.479 0.377
    2500.303 0.292 0.298 0.196
    1250.232 0.221 0.227 0.125
    62.50.169 0.157 0.163 0.061
    00.105 0.099 0.102 　
  • 数据处理：
  • 货期：
    3-5 working days

产品评价

靶点详情

  • 功能：
    Receptor for Slit proteins, at least for SLIT2, and seems to be involved in angiogenesis and vascular patterning. May mediate the inhibition of primary endothelial cell migration by Slit proteins. Involved in the maintenance of endothelial barrier organization and function.
  • 基因功能参考文献：
    1. Low expression level of ROBO4 is associated with evasive resistance and disease progression in cancer. PMID: 26956051
    2. GM-CSF and IL-1beta. Taken together, we demonstrated novel Robo4 functions in inflammation, i.e., it promotes IL-6 production by endothelial cells and immune cells via crosstalk. PMID: 29137978
    3. Results show that hyperglycemia-induced upregulation of Robo4 in retinal endothelial cells is directly mediated by transcription factor SP1 which increases the transcription of Robo4 via an additional binding site in Robo4 promoter. SP1/Robo4 can regulate the migration, monolayer permeability and angiogenesis of retinal endothelial cells under hyperglycemic conditions. PMID: 28341181
    4. Overexpression of Roundabout4 is associated with glioma. PMID: 25859844
    5. there was a increase in Robo4 expression under hyperglycemic conditions, while there was a decrease under hypoxic and combined hypoxic and hyperglycemic conditions, suggesting Robo4 might play different roles in various stages of diabetic retinopathy PMID: 27041242
    6. These results suggest that Slit2/Robo1 binding exerts an effect on cell migration, which is negatively regulated by Robo4, and Robo1 may function by interacting with CdGAP in HUVECs. PMID: 26713366
    7. results indicate that AP-1 complexes regulate Robo4 gene expression in endothelial cells PMID: 26459591
    8. BM Robo4 expression can serve as a new biomarker to predict clinical outcomes in AML patients and Robo4 may serve as a potential therapeutic target in patients with higher Robo4 expression. PMID: 25794001
    9. Robo4 suppressed glioma-induced endothelial cell proliferation, migration and tube formation in vitro by inhibiting VEGR2-mediated activation of PI3K/AKT and FAK signaling pathways. PMID: 25833462
    10. Increased or decreased expression of Robo4 by stimulation or knockdown of HIF-1alpha suggesting that Robo4 is positively regulated by HIF-1alpha under normoxic and hypoxic conditions in microvascular endothelial cells in vitro. PMID: 26066603
    11. Plasma Robo4 levels are increased, transiently, following cardiac surgery requiring CPB PMID: 25360813
    12. This study demonistrated that roundabout 4 regulates blood-tumor barrier permeability through the modulation of ZO-1, Occludin, and Claudin-5 expression. PMID: 25470344
    13. Endothelial cell-specific DNA methylation pattern of the Robo4 proximal promoter is determined during cell differentiation and contributes to regulation of EC-specific Robo4 gene expression. PMID: 24855053
    14. SLIT3-ROBO4 activation promotes vascular network formation in human engineered tissue and angiogenesis in vivo. PMID: 24090675
    15. Slit2-Robo4 is a key regulator of endothelial inflammation, and its dysregulation during endotoxemia is a novel mechanism for LPS-induced vascular pathogenesis. PMID: 24272999
    16. Here I will discuss the regulation mechanism of Robo4 gene expression by transcription factors and epigenetic control. [Review] PMID: 23023422
    17. SiRNA knockdown of Robo4 in pulmonary microvascular endothelial cells prevented Slit2 inhibition of Andes virus induced permeability demonstrating that Robo4 receptors determine pulmonary microvascular endothelial cells responsiveness to Slit2 PMID: 23702092
    18. targeting Slit2/Robo4 signaling may protect the integrity of the lymphatic barrier and limit the dissemination of HIV in the host. PMID: 22241990
    19. Protein expression of Slit2/3 and Robo1/4 was also identified in OVCAR-3 and SKOV-3 cells. PMID: 21465248
    20. REVIEW: Robo4-dependent Slit signaling stabilizes the vasculature during pathologic angiogenesis and cytokine storm PMID: 21423011
    21. Activating with the soluble ligand Slit an endothelium-specific, Robo4-dependent signaling pathway that strengthens the vascular barrier, diminishing deleterious aspects of the host's response to the pathogen-induced cytokine storm. PMID: 20375003
    22. roundabout gene family extends beyond neuronal tissue and that roundabout/slit interactions are likely to have a role in angiogenesis PMID: 11944987
    23. We therefore hypothesize that expression of MRB is involved in regulating the migration of endothelial cells during tumor angiogenesis. PMID: 15894287
    24. Expression of Robo1 is mainly in tumor cells, whereas Robo4 is primarily in endothelial cells of tumor vessels. Therefore, the Robo proteins provide potential target structures for the anti-tumorigenic and anti-angiogenic therapy of colorectal carcinoma. PMID: 16685377
    25. 3-kb upstream promoter of human Robo4 contains information for cell type-specific expression in the intact endothelium. PMID: 17495228
    26. No evidence for association between Gilles de la Tourette Syndrome and either the ROBO4 gene. Thus, this gene is unlikely to be the susceptibility genes contributing to GTS on 11q24. PMID: 17671968
    27. One SNP of ROBO3 showed association with autism PMID: 18270976
    28. role of the GABP-binding motif in mediating Robo4 expression in the intact endothelium PMID: 18519813
    29. Robo1 is essential for Robo4-mediated filopodia induction PMID: 18948384
    30. The knockdown of robo4 abrogated the chemotactic response of endothelial cells to serum but enhanced a chemokinetic response to Slit2, while robo1 knockdown cells do not display chemotactic response to serum or VEGF. PMID: 18980679
    31. Investigated Robo4 in fibrovascular membranes (FVMs) from patients with proliferative diabetic retinopathy and in 2 cell lines. The level of Robo4 mRNA was high in FVMs. Found Robo4 may play a role in the formation of FVMs. PMID: 19495426
    32. data reveal that a Slit2-Robo4-paxillin-GIT1 network inhibits the cellular protrusive activity underlying neovascularization and vascular leak, and identify a new therapeutic target for ameliorating diseases involving the vascular system PMID: 19855388
    33. ROBO4 mRNA decreases during pulmonary fibrosis and hypertension PMID: 17496152

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  • 蛋白家族：
    Immunoglobulin superfamily, ROBO family
  • 组织特异性：
    Specifically expressed in endothelial cells. Expressed in endothelial and intimal cells of the ascending aorta.
  • 数据库链接：

    HGNC: 17985

    OMIM: 607528

    KEGG: hsa:54538

    STRING: 9606.ENSP00000304945

    UniGene: Hs.524121