Human Tissue factor pathway inhibitor 2,TFPI-2 ELISA Kit

Code CSB-E12803h
Size 96T,5×96T,10×96T
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Product Details

Target Name
tissue factor pathway inhibitor 2
Alternative Names
Placental protein 5 ELISA Kit; PP5 ELISA Kit; REF1 ELISA Kit; Retinal pigment epithelium cell factor 1 ELISA Kit; TFPI 2 ELISA Kit; TFPI-2 ELISA Kit; TFPI2 ELISA Kit; TFPI2 PEN ELISA Kit; TFPI2_HUMAN ELISA Kit; Tissue factor pathway inhibitor 2 ELISA Kit
Abbreviation
TFPI2
Uniprot No.
Species
Homo sapiens (Human)
Sample Types
serum, plasma, tissue homogenates
Detection Range
0.78 ng/mL-50 ng/mL
Sensitivity
0.195 ng/mL
Assay Time
1-5h
Sample Volume
50-100ul
Detection Wavelength
450 nm
Research Area
Cardiovascular
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 TFPI-2 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 % 98  
Range % 93-104  
1:2 Average % 94  
Range % 90-99  
1:4 Average % 84  
Range % 80-89  
1:8 Average % 90  
Range % 85-95  
Recovery
The recovery of human TFPI-2 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) 95 90-99  
EDTA plasma (n=4) 89 83-96  
             
             
Typical Data
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  
50 2.831 2.642 2.737 2.588  
25 2.054 1.916 1.985 1.836  
12.5 1.303 1.352 1.328 1.179  
6.25 0.807 0.757 0.782 0.633  
3.12 0.521 0.504 0.513 0.364  
1.56 0.319 0.352 0.336 0.187  
0.78 0.217 0.201 0.209 0.060  
0 0.145 0.153 0.149    
Troubleshooting
and FAQs
Storage
Store at 2-8°C. Please refer to protocol.
Lead Time
3-5 working days after you place the order, and it takes another 3-5 days for delivery via DHL or FedEx
Description

This Human TFPI2 ELISA Kit was designed for the quantitative measurement of Human TFPI2 protein in serum, plasma, tissue homogenates. It is a Sandwich ELISA kit, its detection range is 0.78 ng/mL-50 ng/mL and the sensitivity is 0.195 ng/mL .

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Target Background

Function
(From Uniprot)
May play a role in the regulation of plasmin-mediated matrix remodeling. Inhibits trypsin, plasmin, factor VIIa/tissue factor and weakly factor Xa. Has no effect on thrombin.
Gene References into Functions
  1. These results suggest that LSD2 achieves a promoting effect on small cell lung cancer by indirectly regulating TFPI2 expression through the mediation of DNMT3B expression or through the regulation of the demethylation of H3K4me1 in the promoter region of the TFPI2 gene. PMID: 29845195
  2. MiR-616-3p binds specifically to the 3'-UTR region of TFPI2 mRNA. PMID: 30028057
  3. Tissue factor pathway Inhibitor 2 potencies differ between antifibrinolytic agents against human and mouse enzymes plasmin, factor XIa, and kallikrein PMID: 27797450
  4. estrogen induced TFPI-2 expression in MCF7 cells is mediated by ERalpha and also by the action of LSD1. PMID: 28088469
  5. TFPI2 hypermethylation is associated with colorectal cancer. PMID: 28351398
  6. our research indicated that miR-130a functions as an oncogene by targeting TFPI2, miR-130a inhibition reduced the growth and angiogenesis of hemangioma by inactivating the FAK/PI3K/Rac1/mdm2 pathway PMID: 28393235
  7. TFPI-2 expression was decreased in bladder cancer. TFPI-2 expression was decreased with progression in tumor grade and stage and was correlated to decreased apoptosis. PMID: 28039717
  8. TFPI2 is a useful serum biomarker for preoperative clinical diagnosis of CCC. PMID: 27798689
  9. This TPR-dependent PP5 inhibition shown by Ro 90-7501 is a unique and novel inhibitory mechanism, which might be a useful tool for studies of PP5 on both regulatory mechanism and drug discovery. PMID: 27840051
  10. Over-expression of TFPI-2 and aberrant promoter methylation status presented in the preeclampsia placentas, suggesting that epigenetic mechanism might contribute to the pathogenesis of preeclampsia. PMID: 28208084
  11. Its methylation is a prognostic biomarker for hepatocellular carcinoma after hepatectomy. PMID: 26313014
  12. Data show that silencing tumor-endothelial cells (EC) for trypsinogen 4 accumulated tissue factor pathway inhibitor-2 (TFPI-2) in the matrix. PMID: 26318044
  13. Hypermethylation of TFPI2 promoter is increased in inflamed colon tissue. PMID: 25902909
  14. DNA methylation of TFPI2 may play an important role in the carcinogenesis of cervical cancer and that the differential methylation of TFPI2 may at least partially explain the disparity in cervical cancer incidence between Uygur and Han women. PMID: 25973077
  15. our findings suggested that the differential expression of MMP-2 and TFPI-2 have a negative correlation in pancreatic carcinoma PMID: 25755762
  16. Our finding suggests that the decreased expression of TFPI-2 may play an important role in the carcinogenesis and progression, and may become a new adjunct marker in the diagnosis and prognosis in cholangiocarcinoma PMID: 25755719
  17. TMPRSS4 is upregulated by silencing of TFPI-2 through aberrant DNA methylation and contributes to oncogenesis in non-small cell lung cancer. PMID: 25414083
  18. TFPI-2 is a down-regulated tumor suppressor gene in oral squamous cell carcinoma, probably involving epigenetic silencing mechanisms. The loss of TFPI-2 expression is a key event for oral tumorigenesis, especially in the process of tumor metastasis. PMID: 25179542
  19. regulation of tissue factor pathway inhibitor-2 (TFPI-2) expression by lysine-specific demethylase 1 and 2 PMID: 25036127
  20. TFPI-2 in platelets from normal or pregnant subjects and in plasma from pregnant women binds FV/Va and regulates intrinsic coagulation and fibrinolysis PMID: 25262870
  21. TFPI-2 downregulation can contribute to tumor invasion of hepatocellular carcinoma cells through alteration in the expression of metastasis-related genes. PMID: 24591127
  22. TFPI2 is a novel serum marker for ovarian clear cell adenocarcinoma and neoplastic transformation from endometriosis. PMID: 23805888
  23. The present work demonstrated that the epigenetic inactivation of TFPI-2 by promoter hypermethylation was a frequent and tumor-specific event in glioblastoma, and TFPI-2 promoter methylation might be considered as a prognostic marker in glioblastoma. PMID: 23032906
  24. Low or negative expression of TFPI-2 is associated with breast cancer progression, recurrence and poor survival outcome after breast cancer surgery. TFPI-2 expression in breast tumors is a potential prognostic tool for breast cancer patients. PMID: 23497249
  25. The C-terminus of TFPI-2 encodes for antimicrobial activity, and may be released during wounding. PMID: 23300768
  26. TFPI2 methylation in serum tended to be detected more easily in patients with advanced hepatocellular carcinoma (HCC) and might be used as a predictor of HCC progression. PMID: 23108564
  27. TFPI-2 expression caused invasion and proliferation impair and induced apoptosis in TFPI-2 regulated BeWo and JEG-3 cells. It provides a clue for potential role of TFPI-2 in trophoblast. PMID: 22203034
  28. TFPI-2 methylation is associated with non-small cell lung cancer. PMID: 21983100
  29. There was a close association between the expression of tissue factor pathway inhibitor-2 (TFPI-2) and tumor cell apoptosis and angiogenesis in patients with cervical cancer. PMID: 22208663
  30. Methylation was found in 28.2, 33.3 and 33.3% of grade 1, 2 and 3 esophageal dysplasia, and 67% of primary esophageal cancer, but no methylation was found in normal mucosa. PMID: 22449186
  31. Results demonstrate the feasibility of using TFPI2 methylation and quantify human long DNA with fluorescent quantitative Alu PCR in fecal samples as a new noninvasive test for CRC. PMID: 21621497
  32. recombined plasmid pEGFP-C1-TFPI-2 actually interacted with native RASSF1C PMID: 22232300
  33. results confirm that detection of methylated TFPI2 in serum DNA was derived from colorectal cancer and could serve as a marker of surgical outcome PMID: 22399594
  34. study provides evidence that inactivation of TFPI-2 synthesis might promote tumour invasion by a mechanism dependent on regulation of MMP-1, -2, -3, -7 and of ERK signalling pathway PMID: 20015200
  35. Promoter hypermethylation of TFPI-2 is frequent and specific event in pediatric acute myeloid leukemia. PMID: 22052167
  36. Serum TFPI2 methylation is associated with gastric cancer. PMID: 22110206
  37. inverse expression of CD24 and TFPI-2 was observed by immunohistochemical analysis of primary breast cancers (N = 1,174). TFPI-2 expression was highest in CD24 negative samples and lowered with increasing CD24 expression PMID: 21984372
  38. TFPI2 methylation was significant in the sera of patients with large, poorly differentiated carcinoma, deep invasion, lymph node metastasis, or distant metastasis. TFPI2 methylation was observed more frequently according to the progression of TNM stage. PMID: 21820798
  39. Our findings underscore the important role of TFPI-2 as a tumor suppressor gene PMID: 21530612
  40. Results showed that TFPI2 expression was not affected by with VLDL lipoproteins, but was induced by thrombin in THP-1 and monocyte-derived macrophages. PMID: 21515313
  41. TFPI-2 plays a significant role in the growth, invasion, and metastasis of pancreatic carcinoma cell in vitro and in vivo, and has potential in anticancer therapy. PMID: 20018303
  42. Epigenetic inactivation of TFPI-2 by promoter hypermethylation is a frequent and tumor specific event in nasopharyngeal carcinoma PMID: 21062455
  43. Findings define a functional involvement for miR-616 and TFPI-2 in the development and maintenance of androgen-independent prostate cancer. PMID: 21224345
  44. TFPI-2 plays a significant role in the invasion and metastasis of pancreatic carcinoma cell in vitro and in vivo. TFPI-2 is an independent prognostic factor for pancreatic carcinoma. PMID: 19763915
  45. Aberrant methylation of the TFPI2 gene was detected in 7 out of 38 (18%) primary gastric carcinomas, suggesting that the methylation of TFPI2 is frequently observed in gastric carcinomas. PMID: 21036731
  46. Placenta may be the main site of the high level of TFPI-2 production in maternal circulation PMID: 20347477
  47. TFPI-2 influences smooth muscle cell proliferation and apoptosis in vitro in response to fluid shear stress. PMID: 20537494
  48. these data indicate that TFPI-2 inhibits esophageal tumor invasion and angiogenesis both in vitro and in vivo. PMID: 20377370
  49. TFPI2 may act as a tumour suppressor in colorectal carcinomas and TFPI2 methylation may present a potential risk of malignancy in colorectal cancer. PMID: 20530429
  50. Expression, DNA methylation and histone modifications of TFPI2, a presumed tumor suppressor, and that of other genes in the 7q21 imprinted gene cluster in prostate cancer, were analysed. PMID: 20335518

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Subcellular Location
Secreted.
Tissue Specificity
Umbilical vein endothelial cells, liver, placenta, heart, pancreas, and maternal serum at advanced pregnancy.
Database Links

HGNC: 11761

OMIM: 600033

KEGG: hsa:7980

STRING: 9606.ENSP00000222543

UniGene: Hs.438231

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