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Human Programmed cell death 1 ligand 2(PDCD1LG2) ELISA kit

  • 中文名称:
    人程序性细胞死亡1配体2(PDCD1LG2)|酶联免疫试剂盒
  • 货号:
    CSB-EL017667HU
  • 规格:
    96T/48T
  • 价格:
    ¥3600/¥2500
  • 其他:

产品详情

  • 产品描述:
    CUSABIO定量检测人血清、血浆及组织匀浆中程序性细胞死亡1配体2(PD-L2/PDCD1LG2)的酶联免疫试剂盒,采用双抗体夹心法原理,检测灵敏度为0.45 ng/ml,线性范围为0.45-30 ng/ml,适用于体外样本中PD-L2蛋白的精准定量分析。PD-L2作为免疫检查点蛋白PD-1的配体之一,在肿瘤微环境及慢性感染中通过抑制T细胞活性参与免疫调节,其表达水平与免疫逃逸机制及疾病进展密切相关。该试剂盒可兼容多种生物样本类型,为研究肿瘤免疫治疗、感染性疾病或自身免疫性疾病中的PD-L2调控机制提供可靠工具,广泛应用于免疫学、肿瘤学等基础研究领域,实验操作简便,重复性良好,满足科研实验对高通量、高特异性检测的需求。
  • 别名:
    B7 dendritic cell molecule ELISA Kit; B7-DC ELISA Kit; B7DC ELISA Kit; bA574F11.2 ELISA Kit; Btdc ELISA Kit; Butyrophilin B7 DC ELISA Kit; Butyrophilin B7-DC ELISA Kit; Butyrophilin B7DC ELISA Kit; CD 273 ELISA Kit; CD273 ELISA Kit; CD273 antigen ELISA Kit; MGC142238 ELISA Kit; MGC142240 ELISA Kit; PD 1 ligand 2 ELISA Kit; PD L2 ELISA Kit; PD-1 ligand 2 ELISA Kit; PD-L2 ELISA Kit; PD1 ligand 2 ELISA Kit; PD1L2_HUMAN ELISA Kit; PDCD 1 ligand 2 ELISA Kit; PDCD1 ligand 2 ELISA Kit; PDCD1L2 ELISA Kit; Pdcd1lg2 ELISA Kit; PDL 2 ELISA Kit; PDL2 ELISA Kit; Programmed cell death 1 ligand 2 ELISA Kit; Programmed death ligand 2 ELISA Kit
  • 缩写:
  • Uniprot No.:
  • 种属:
    Homo sapiens (Human)
  • 样本类型:
    serum, plasma, tissue homogenates.
  • 检测范围:
    0.45 ng/ml-30 ng/ml.
  • 灵敏度:
    0.11 ng/ml
  • 反应时间:
    1-5h
  • 样本体积:
    50-100ul
  • 检测波长:
    450 nm
  • 研究领域:
    Others
  • 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 PDCD1LG2 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 %

    91

    Range %

    86-97

    1:2

    Average %

    97

    Range %

    92-103

    1:4

    Average %

    101

    Range %

    97-105

    1:8

    Average %

    89

    Range %

    83-95

  • 回收率:

    The recovery of human PDCD1LG2 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)

    90

    85-93

    EDTA plasma (n=4)

    101

    96-104

  • 标准曲线:

    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

    ng/ml

    OD1

    OD2

    Average

    Corrected

    30

    2.788

    2.899

    2.844

    2.745

    15

    2.365

    2.456

    2.411

    2.312

    7.5

    1.545

    1.636

    1.591

    1.492

    3.75

    0.778

    0.745

    0.762

    0.663

    1.8

    0.423

    0.411

    0.417

    0.318

    0.9

    0.256

    0.265

    0.261

    0.162

    0.45

    0.155

    0.164

    0.160

    0.061

    0

    0.101

    0.097

    0.099

     

  • 数据处理:
  • 货期:
    3-5 working days

产品评价

靶点详情

  • 功能:
    Involved in the costimulatory signal, essential for T-cell proliferation and IFNG production in a PDCD1-independent manner. Interaction with PDCD1 inhibits T-cell proliferation by blocking cell cycle progression and cytokine production.
  • 基因功能参考文献:
    1. Our results confirm and extend prior studies of PD-L1 and provide new data of PD-L2 expression in lymphomas PMID: 29122656
    2. High PD-L2 expression may be a target of immunotherapy in patients with PD-L1-negative Non-small Cell Lung Cancer. PMID: 30275216
    3. The high-affinity PD-1 mutant could compete with the binding of antibodies specific to PD-L1 or PD-L2 on cancer cells. PMID: 29890018
    4. the binding affinities of the PD-1-PD-L1/PD-L2 co-inhibitory receptor system, was characterized. PMID: 27447090
    5. Tumor PDCD1LG2 expression is inversely associated with Crohn-like lymphoid reaction to colorectal cancer, suggesting a possible role of PDCD1LG2-expressing tumor cells in inhibiting the development of tertiary lymphoid tissues during colorectal carcinogenesis. PMID: 29038297
    6. The biopsy tumor key protein measurements demonstrate substantial between-tumor variation in expression ratios of these proteins and suggest that programmed cell death 1 ligand 2 PD-L2 is present in some tumors at levels sufficient to contribute to programmed cell death-1 PD-1-dependent T-cell regulation and possibly to affect responses to PD-1- and programmed cell death 1 ligand 1 PD-L1-blocking drugs. PMID: 28546465
    7. the positive rate of PD-L2 did not show any differences between primary tumors and metastatic lymph nodes. In multivariate analysis, PD-L1 expression, PD-L2 expression, a low density of CD8(+) T cells in primary tumors, and PD-1 expression on CD8(+) T cells in primary tumors were associated with poor prognosis. PMID: 28754154
    8. in some tumor types, PD-L2 expression is more closely linked to Th1/IFNG expression and PD-1 and CD8 signaling than PD-L1 PMID: 27837027
    9. Clinical response to pembrolizumab in patients with head and neck squamous cell carcinoma (HNSCC)may be related partly to blockade of PD-1/PD-L2 interactions. Therapy targeting both PD-1 ligands may provide clinical benefit in these patients. PMID: 28619999
    10. PD-L2 is regulated by both interferon beta and gamma signaling. PMID: 28494868
    11. Overexpression of PD-L1 and PD-L2 Is Associated with Poor Prognosis in Patients with Hepatocellular Carcinoma PMID: 27456947
    12. Data suggest that hormonal 1,25-dihydroxyvitamin D is a direct transcriptional inducer of genes encoding PDL1 and PDL2 in myeloid cells/macrophages; this up-regulation of gene expression appears to be species- and cells-specific. PMID: 29061851
    13. PD-L2 copy number gains were not related to PD-L2 augmentation in non-small cell lung cancer. PMID: 27050074
    14. PD-L2 expression has been reported in 52% of esophageal adenocarcinomas but little is known about the expression of other immune checkpoints PMID: 28561677
    15. Low PD-L2 expression is associated with pediatric solid tumors. PMID: 28488345
    16. this study shows that higher PD-L2 expression on blood dendritic cells, from Plasmodium falciparum-infected individuals, correlates with lower parasitemia PMID: 27533014
    17. PD-L1/PD-L2 copy number alterations are a defining feature of classical Hodgkin lymphoma. PMID: 27069084
    18. PDL2 was overexpressed in Epstein Barr virus-associated gastric adenocarcinoma. PMID: 26980034
    19. higher expression of PD-L1 and PD-L2 on CD1a(+) cells than that on CD83(+) cells in cutaneous squamous cell carcinoma tumour tissues may contribute to negative regulation in anti-tumour immune responses PMID: 28052400
    20. stable ectopic expression of wild-type PDCD1LG2 and the PDCD1LG2-IGHV7-81 fusion showed, in coculture, significantly reduced T-cell activation. PMID: 27268263
    21. The expression levels of PD-1, PD-L1 and PD-L2 in CD3(+) T cells and CD19(+) B cells and serum IFN-gamma level in progressive hepatocellular carcinoma patients were significantly higher than controls. PMID: 27609582
    22. Downregulation of the immunosuppressive molecules, PD-1 and PD-L1, may imply that over-activation of immune cells in multiple sclerosis occurs through signaling dysfunction of these molecules and PD-L2 plays no important role in this context PMID: 27921410
    23. an IL-27/Stat3 axis induces expression of programmed cell death 1 ligands (PD-L1/2) on infiltrating macrophages in lymphoma PMID: 27564404
    24. High PD-L2 expression is associated with Renal Cell Carcinoma. PMID: 26464193
    25. knocking down in dendritic cells results in activation of inflammatory T cells PMID: 26599163
    26. We observed cogain or coamplification of CD274 and PDCD1LG2 in 32 of 48 cervical and 10 of 23 vulvar squamous cell carcinomas PMID: 26913631
    27. PD-L2 expression was neither associated with VEGF-TKI responsiveness nor patients' outcome PMID: 26424759
    28. PD-L1 and PD-L2 are useful new markers for identifying select histiocyte and dendritic cell disorders and reveal novel patient populations as rational candidates for immunotherapy PMID: 26752545
    29. Genomic amplification of 9p24.1 targeting JAK2, PD-L1, and PD-L2 is enriched in high-risk triple negative breast cancer. PMID: 26317899
    30. the inflammatory environment in Barrett's esophagus and esophageal adenocarcinoma may contribute to the expression of PD-L2. PMID: 26081225
    31. PDL2 could promote the ability of human placenta-derived mesenchymal stromal cells to augment the secretion of IL-10. PMID: 26432559
    32. We suggest that decreased expression of programmed death-ligand 1, 2 on psoriatic epidermis can contribute to its chronic unregulated inflammatory characteristics. PMID: 26133691
    33. Suggest role for PD-L2 in recurrence of hepatitis C infection post orthotopic liver transplantation. PMID: 25675203
    34. Report PD-L2 expression in breast neoplasms. PMID: 26541326
    35. Data indicate that pulmonary pleomorphic carcinoma (PC) very frequently express CD274 antigen (PD-L1) and CD273 antigen (PD-L2). PMID: 26329973
    36. PD-L1 and PD-L2 expression in pulmonary squamous cell carcinoma is associated with an increased number of CD8(+) tumor infiltrating lymphocytess and increased MET expression. PMID: 25662388
    37. Results show that human-derived chordoma cell lines demonstrate inducible expression of PD-L1 and PD-L2, and that primary chordoma tissue shows variable expression of PD-1 and PD-L1 in infiltrating immune cells PMID: 25349132
    38. conclude that PD-L2 protein is robustly expressed by the majority of primary mediastinal (thymic) large B-cell lymphomas PMID: 25025450
    39. PD-1/PD-Ls pathways on PMCs inhibited proliferation and adhesion activity of CD4+ T cells, suggesting that Mycobacterium tuberculosis might exploit PD-1/PD-Ls pathways to evade host cell immune response in human. PMID: 24406080
    40. High Expression of PD-L2 is associated with myelodysplastic syndromes. PMID: 24270737
    41. Data indicate that the bone morphogenetic proteins (BMPs) signaling pathway regulates PD-L1 and PD-L2 expression in monocyte-derived dendritic cells (MoDCs) during the maturation process. PMID: 24532425
    42. Recurrent genomic rearrangement events in CD274 and PDCD1LG2 underlie an immune privilege phenotype in a subset of B-cell lymphomas. PMID: 24497532
    43. PD-L1 and PD-L2 expressed on hPMSCs could inhibit the hPMSCs-mediated up-regulation on the expression of IL-17 secreted by peripheral blood T cells PMID: 23388330
    44. Macrophages from infected animals show increased expression of PDL2 and CD80 that was dependent from the sex of the host. PMID: 23533995
    45. expression of PD-1 and its ligands, PD-L1 and PD-L2, in liver biopsies from HBV-related acute-on-chronic liver failure (HBV-ACLF) and chronic hepatitis B (CHB) patients were analyzed; results showed all 3 molecules were observed in the HBV-ACLF samples and levels were significantly higher than in CHB PMID: 22895698
    46. Data show that PD-1, PD-L1, PD-L2, CCL17, and CCL22 mRNA was identified in papillomas. PMID: 22322668
    47. Data suggest that brain endothelial cells contribute to control T cell transmigration into the CNS and immune responses via PD-L2 but not PD-L1 expression. PMID: 22067141
    48. increased expression of PD-L2, as a costimulatory molecule, may have an important modulatory function on the local immune responses of OLP in vivo. PMID: 21457347
    49. Data suggest that PD-L1 may contribute to negative regulation of the immune response in chronic hepatitis B, and that PD-1 and PD-L1 and 2 may play a role in immune evasion of tumors. PMID: 21876620
    50. Our results suggest that PD-1 G-536A, PD-L1 A8923C and PD-L2 C47103T polymorphisms are associated with the presence of ankylosing spondylitis. PMID: 21791547

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  • 亚细胞定位:
    [Isoform 3]: Secreted.; [Isoform 2]: Endomembrane system; Single-pass type I membrane protein.; [Isoform 1]: Cell membrane; Single-pass type I membrane protein.
  • 蛋白家族:
    Immunoglobulin superfamily, BTN/MOG family
  • 组织特异性:
    Highly expressed in heart, placenta, pancreas, lung and liver and weakly expressed in spleen, lymph nodes and thymus.
  • 数据库链接:

    HGNC: 18731

    OMIM: 605723

    KEGG: hsa:80380

    STRING: 9606.ENSP00000380855

    UniGene: Hs.532279