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膜聯(lián)蛋白A2(ANXA2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Annexin A2 (ANXA2)

ANX-A2; ANX2L4; CAL1H; LIP2; LPC2; LPC2D; P36; PAP-IV; Protein I; Chromobindin-8; Calpactin-1 heavy chain; Lipocortin II; Placental anticoagulant protein IV

  • 膜聯(lián)蛋白A2(ANXA2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 膜聯(lián)蛋白A2(ANXA2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 膜聯(lián)蛋白A2(ANXA2)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
  • SEB944Ra.jpg 標(biāo)準(zhǔn)曲線圖
  • Certificate 通過ISO 9001、ISO 13485質(zhì)量體系認(rèn)證

特異性

本試劑盒用于檢測(cè)膜聯(lián)蛋白A2(ANXA2),經(jīng)檢測(cè)與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,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膜聯(lián)蛋白A2(ANXA2)(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) 82-102 95
EDTA plasma(n=5) 79-102 95
heparin plasma(n=5) 81-94 85

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)加入適量的膜聯(lián)蛋白A2(ANXA2),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膜聯(lián)蛋白A2(ANXA2)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) 86-97% 86-93% 81-91% 89-101%
EDTA plasma(n=5) 95-105% 88-98% 80-99% 92-99%
heparin plasma(n=5) 84-98% 95-105% 95-103% 91-101%

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

將膜聯(lián)蛋白A2(ANXA2)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,其中的膜聯(lián)蛋白A2(ANXA2)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的膜聯(lián)蛋白A2(ANXA2)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膜聯(lián)蛋白A2(ANXA2)呈正相關(guān)。用酶標(biāo)儀在450nm波長下測(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!)
RPB944Ra01 膜聯(lián)蛋白A2(ANXA2)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
PAB944Ra01 膜聯(lián)蛋白A2(ANXA2)多克隆抗體 WB; IHC; ICC; IP.
MAB944Ra21 膜聯(lián)蛋白A2(ANXA2)單克隆抗體 WB; IHC; ICC; IP.
SEB944Ra 膜聯(lián)蛋白A2(ANXA2)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) Enzyme-linked immunosorbent assay for Antigen Detection.
LMB944Ra 膜聯(lián)蛋白A2(ANXA2)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)
Journal of Cellular Biochemistry Subcellular proteome analysis unraveled annexin A2 related to immune liver fibrosis [PubMed: 20225235]
World Journal of Gastroenterology Expression characteristics and diagnostic value of annexin A2 in hepatocellular carcinoma [PubMed: PMC3491596]
Oncology Letters Annexin A2 is not a good biomarker for hepatocellular carcinoma in cirrhosis [PubMed: PMC3742823]
Ibrahim Annexin A2 Versus Afp as An Efficient Diagnostic Serum Marker for Hepatocellular Carcinoma [Ghrnet: Source]
European Journal of Clinical Microbiology &amp; Infectious Diseases Serum annexin A2 levels in acute brucellosis and brucellar spondylodiscitis [Pubmed:24853056]
Biomedicine &amp; Pharmacotherapy Circulating annexin A2 as a biomarker in gastric cancer patients: Correlation with clinical variables [Pubmed:25661364]
Hepat Mon Serum Levels of Annexin A2 as a Candidate Biomarker for Hepatic Fibrosis in Patients With Chronic Hepatitis B [PubMed: 26587036]
Tumour Biol Up-regulation of annexin A2 expression predicates advanced clinicopathological features and poor prognosis in hepatocellular carcinoma [PubMed: 26109000]
Biomed Pharmacother Circulating [PubMed: 25661364]
Tumour Biol Evaluation of annexin A2 and as potential biomarkers for hepatocellular carcinoma [PubMed: 26189841]
Eur J Clin Invest Stairs instead of elevators at the workplace decreases PCSK9 levels in a healthy population [PubMed: 26081791]
Journal of Oral and Maxillofacial Surgery Serum?Annexin?A2?Level?Is?Associated?With?Diagnosis?and?Prognosis?in?Patients?With?OralSquamous?Cell?Carcinoma. [pubmed:27889534]
Pregnancy Hypertens Assessment of annexin A5 and annexin A2 levels as biomarkers for pre-eclampsia: A pilot study. [pubmed:28501283]
Mol Nutr Food Res. Epigallocatechin gallate induces an up-regulation of LDL receptor accompanied by a reduction of PCSK9 via the annexin A2-independent pathway in HepG2 cells. [pubmed:28181408]
Archives of Gynecology and Obstetrics Expression of annexin A2 in adenomyosis and dysmenorrhea [Pubmed: 31183557]
Cancers Extracellular Vesicles-Based Biomarkers Represent a Promising Liquid Biopsy in Endometrial Cancer [Pubmed: 31842290]
PLASMA BIOMARKER FOR OVARIAN CANCER []
Diagnostics Diagnostic Value of Plasma Annexin A2 in Early-Stage High-Grade Serous Ovarian Cancer. Diagnostics 2021, 11, 69 [33406648]
ADVANCED RESEARCHES Search for Effective Serum Tumor Markers for Early Diagnosis of Hepatocellular Carcinoma Associated with Hepatitis C []
Cancer Cell International Bufalin Induced Mitochondrial Dysfunction Promotes Apoptosis of Glioma Cells by Regulating Annexin A2 and DRP1 Proteins []
Cancer Cell Int Bufalin induces mitochondrial dysfunction and promotes apoptosis of glioma cells by regulating Annexin A2 and DRP1 protein expression [34376212]
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