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內(nèi)皮細(xì)胞特異分子1(ESM1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Endothelial Cell Specific Molecule 1 (ESM1)

Endocan

  • 內(nèi)皮細(xì)胞特異分子1(ESM1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 內(nèi)皮細(xì)胞特異分子1(ESM1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 內(nèi)皮細(xì)胞特異分子1(ESM1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 實(shí)驗(yàn)結(jié)果圖
  • SEC463Ra.jpg 標(biāo)準(zhǔn)曲線圖
  • Certificate 通過(guò)ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測(cè)內(nèi)皮細(xì)胞特異分子1(ESM1),經(jīng)檢測(cè)與其它相似物質(zhì)無(wú)明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來(lái)源的限制,不可能完成對(duì)所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測(cè),因此本試劑盒有可能與未經(jīng)檢測(cè)的其它物質(zhì)有交叉反應(yīng)。

回收率

分別于定值血清及血漿樣本中加入一定量的內(nèi)皮細(xì)胞特異分子1(ESM1)(加標(biāo)樣品),重復(fù)測(cè)定并計(jì)算其均值,回收率為測(cè)定值與理論值的比率。

樣本 回收率范圍(%) 平均回收率(%)
serum(n=5) 81-88 84
EDTA plasma(n=5) 88-96 93
heparin plasma(n=5) 79-99 93

精密度

精密度用樣品測(cè)定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對(duì)低、中、高值定值樣本進(jìn)行定量檢測(cè),每份樣本連續(xù)測(cè)定20 次,分別計(jì)算不同濃度樣本的平均值及SD值。
批間差:選取3個(gè)不同批次的試劑盒分別對(duì)低、中、高值定值樣本進(jìn)行定量測(cè)定,每個(gè)樣本使用同一試劑盒重復(fù)測(cè)定8次,分別計(jì)算不同濃度樣本的平均值及SD值。
批內(nèi)差: CV<10%
批間差: CV<12%

線性

在定值血清及血漿樣本內(nèi)加入適量的內(nèi)皮細(xì)胞特異分子1(ESM1),并倍比稀釋成1:2,1:4,1:8,1:16的待測(cè)樣本,線性范圍即為稀釋后樣本中內(nèi)皮細(xì)胞特異分子1(ESM1)含量的測(cè)定值與理論值的比率。

樣本 1:2 1:4 1:8 1:16
serum(n=5) 80-101% 80-92% 94-102% 93-104%
EDTA plasma(n=5) 98-105% 78-97% 87-95% 81-96%
heparin plasma(n=5) 81-104% 96-103% 93-101% 83-102%

穩(wěn)定性

經(jīng)測(cè)定,試劑盒在有效期內(nèi)按推薦溫度保存,其活性降低率小于5%。
為減小外部因素對(duì)試劑盒破壞前后檢測(cè)值的影響,實(shí)驗(yàn)室的環(huán)境條件需盡量保持一致,尤其是實(shí)驗(yàn)室內(nèi)溫度、濕度及溫育條件。其次由同一實(shí)驗(yàn)員來(lái)進(jìn)行操作可減少人為誤差。

實(shí)驗(yàn)流程

1. 實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本的準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品及樣本)100µL,37°C孵育1小時(shí);
3. 吸棄,加檢測(cè)溶液A100µL,37°C孵育1小時(shí);
4. 洗板3次;
5. 加檢測(cè)溶液B100µL,37°C孵育30分鐘;
6. 洗板5次;
7. 加TMB底物90µL,37°C孵育10-20分鐘;
8. 加終止液50µL,立即450nm讀數(shù)。

實(shí)驗(yàn)原理

將內(nèi)皮細(xì)胞特異分子1(ESM1)抗體包被于96孔微孔板中,制成固相載體,向微孔中分別加入標(biāo)準(zhǔn)品或標(biāo)本,其中的內(nèi)皮細(xì)胞特異分子1(ESM1)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的內(nèi)皮細(xì)胞特異分子1(ESM1)抗體,將未結(jié)合的生物素化抗體洗凈后,加入HRP標(biāo)記的親和素,再次徹底洗滌后加入TMB底物顯色。TMB在過(guò)氧化物酶的催化下轉(zhuǎn)化成藍(lán)色,并在酸的作用下轉(zhuǎn)化成最終的黃色。顏色的深淺和樣品中的內(nèi)皮細(xì)胞特異分子1(ESM1)呈正相關(guān)。用酶標(biāo)儀在450nm波長(zhǎng)下測(cè)定吸光度(O.D.值),計(jì)算樣品濃度。

相關(guān)產(chǎn)品

編號(hào) 適用物種:Rattus norvegicus (Rat,大鼠) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPC463Ra01 內(nèi)皮細(xì)胞特異分子1(ESM1)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
PAC463Ra01 內(nèi)皮細(xì)胞特異分子1(ESM1)多克隆抗體 WB; IHC; ICC; IP.
LAC463Ra71 內(nèi)皮細(xì)胞特異分子1(ESM1)多克隆抗體(生物素標(biāo)記) WB; IHC; ICC.
SEC463Ra 內(nèi)皮細(xì)胞特異分子1(ESM1)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) Enzyme-linked immunosorbent assay for Antigen Detection.
LMC463Ra 內(nèi)皮細(xì)胞特異分子1(ESM1)等多因子檢測(cè)試劑盒(流式熒光發(fā)光法) FLIA Kit for Antigen Detection.

參考文獻(xiàn)

雜志 參考文獻(xiàn)
Urology Detection on dynamic changes of endothelial cell specific molecule-1 in acute rejection after renal transplantation [PubMed: 22608803]
Microvasc Res. Endocan is useful biomarker of survival and severity in sepsis. [Pubmed: 24769132]
J Matern Fetal Neonatal Med. Endocan, a putative endothelial cell marker, is elevated in preeclampsia, decreased in acute pyelonephritis, and unchanged in other obstetrical syndromes [Pubmed:25211383]
Microvasc Res. Endocan is useful biomarker of survival and severity in sepsis [Pubmed:24769132]
Angiology Endocan Levels and Subclinical Atherosclerosis in Patients With Systemic Lupus Erythematosus [PubMed: 26614790]
Archives of Medical Science - Atherosclerotic Diseases Assessment of subclinical cardiac damage in chronic plaque psoriasis patients: a case control study [Journal:-102]
Int Immunopharmacol.? Inhibition of endocan attenuates monocrotaline-induced connective tissue disease related pulmonary arterial hypertension. [pubmed:27912147]
Oncotarget Diagnostic and prognostic values of endothelial-cell-specific molecule-1 with malignant pleural effusions in patients with non-small cell lung cancer [pubmed:28514746]
Biomedical and Pharmacology Journal Changes in Endocan Levels and Blood Coagulation in HIV Infection [DOI: 10.13005/bpj/1082]
Life Sciences A novel role of endocan in alleviating LPS-induced acute lung injury [Pubmed:29627442]
International Urology and Nephrology Is the plasma endocan level a reliable predictor for the severity of erectile dysfunction? [Pubmed:30054863]
The Open Rheumatology Journal Serum Level of Endothelial Cell-Specific Molecule-1 (ESM-1) as a New Potential Biomarker for Rheumatoid Arthritis Disease Activity [Doi: 10.2174/1874312901812010189]
Molecular?Medicine?Reports Downregulation of ENDOCAN in myeloid leukemia cells inhibits proliferation and promotes apoptosis by suppressing nuclear factor?κB activity [Pubmed: 30816462]
Biomarkers in Medicine Endothelial biomarkers in the light of new sepsis definition [Pubmed: 30920847]
Experimental and Therapeutic Medicine Risk stratification and prognostic evaluation of endothelial cell?specific molecule1, von Willebrand factor, and a disintegrin?like and metalloprotease with?… []
Turkish Journal of Medical Sciences A novel marker relationship between carotid intima–media thickness and disease activity score-28 in patients with rheumatoid arthritis: human endothelial cell?… [Pubmed: 31655533]
Biomarkers Role of Ascitic Endocan Levels in the Diagnosis of Spontaneous Bacterial Peritonitis in Decompensated Cirrhosis [Pubmed: 32364003]
J Obstet Gynaecol Res Comparison of the maternal serum endocan levels in preterm premature rupture of membrane and normal pregnancy [34109715]
turkish journal clinics laboratory The relationship between serum endocan levels with the presence of contrast-induced nephropathy in patients undergoing coronary angiography []
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