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半乳糖凝集素9(GAL9)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)

ELISA Kit for Galectin 9 (GAL9)

LGALS9; Ecalectin; Lectin,Galactoside-Binding Soluble 9; Tumor antigen HOM-HD-21

  • 半乳糖凝集素9(GAL9)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 半乳糖凝集素9(GAL9)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) 產(chǎn)品包裝(模擬)
  • 半乳糖凝集素9(GAL9)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
  • SEA309Hu.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)半乳糖凝集素9(GAL9),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半乳糖凝集素9(GAL9)(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) 96-104 101
EDTA plasma(n=5) 87-101 90
heparin plasma(n=5) 87-97 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)加入適量的半乳糖凝集素9(GAL9),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半乳糖凝集素9(GAL9)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) 93-105% 95-102% 84-91% 79-101%
EDTA plasma(n=5) 78-91% 86-96% 88-102% 95-103%
heparin plasma(n=5) 95-104% 88-95% 81-90% 82-105%

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

將半乳糖凝集素9(GAL9)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,其中的半乳糖凝集素9(GAL9)與連接于固相載體上的抗體結(jié)合,然后加入生物素化的半乳糖凝集素9(GAL9)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半乳糖凝集素9(GAL9)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:Homo sapiens (Human,人) 應(yīng)用(僅供研究使用,不用于臨床診斷!)
RPA309Hu01 半乳糖凝集素9(GAL9)重組蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
APA309Hu01 半乳糖凝集素9(GAL9)活性蛋白 Cell?culture;?Activity?Assays.
APA309Hu61 半乳糖凝集素9(GAL9)活性蛋白 Cell?culture;?Activity?Assays.
EPA309Hu61 半乳糖凝集素9(GAL9)真核蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
PAA309Hu01 半乳糖凝集素9(GAL9)多克隆抗體 WB; IHC
MAA309Hu22 半乳糖凝集素9(GAL9)單克隆抗體 WB; IHC; ICC; IP.
SEA309Hu 半乳糖凝集素9(GAL9)檢測(cè)試劑盒(酶聯(lián)免疫吸附試驗(yàn)法) Enzyme-linked immunosorbent assay for Antigen Detection.
SCA309Hu 半乳糖凝集素9(GAL9)檢測(cè)試劑盒(化學(xué)發(fā)光免疫分析法) Chemiluminescent immunoassay for Antigen Detection.
LMA309Hu 半乳糖凝集素9(GAL9)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)
American Journal of Nephrology Temporal Increases in Urinary Carboxymethyllysine Correlate with Albuminuria Development in Diabetes [Karger: 328581]
Clinical Immunology Galectin-9 administration ameliorates CVB3 induced myocarditis by promoting the proliferation of regulatory T cells and alternatively activated Th2 cells [ScienceDirect: S1521661611001057]
Renal Failure Rat Renal Interstitial Fibroblasts Affect the Th1/Th2 Profile In Vitro [Pubmed: 22013937]
BMC Nephrol Serum galectin-9 levels are elevated in the patients with type 2 diabetes and chronic kidney disease [PubMed: 23339460]
Retrovirology Dysregulated Tim-3 expression on natural killer cells is associated with increased Galectin-9 levels in HIV-1 infection [PubMed: PMC3750478]
PLoS One. Upregulation of the Tim-3/Galectin-9 Pathway of T Cell Exhaustion in Chronic Hepatitis B Virus Infection [PubMed: PMC3480425]
PLoS Pathogens Galectin-9 and IL-21 Mediate Cross-regulation between Th17 and Treg Cells during Acute Hepatitis C [PubMed: PMC3688567]
PLOS ONE Graves’ Disease Is Associated with a Defective Expression of the Immune Regulatory Molecule Galectin-9 in Antigen-Presenting Dendritic Cells [PubMed: 25880730]
Advances in Experimental?Medicine?and?Biology Molecules of Damage-Associated Patterns in Bronchoalveolar Lavage Fluid and Serum in Chronic Obstructive Pulmonary Disease [Pubmed:29429028]
Journal?of?Microbiology,?Immunology?and?Infection Galectin-9-like from Angiostrongylus cantonensis young adult worms modulates eosinophil chemotaxis in vitro [Doi: 10.1016/j.jmii.2018.09.010]
Oncology?Letters The effects of Tim?3 activation on T?cells in gastric cancer progression []
Scientific Reports Circulating levels of PD-L1 and Galectin-9 are associated with patient survival in surgically treated Hepatocellular Carcinoma independent of their intra?… [Pubmed: 31337865]
Biomolecules Blood Levels of Galectin-9, an Immuno-Regulating Molecule, Reflects the Severity for the Acute and Chronic Infectious Diseases. Biomolecules 2021, 11, 430 [33804076]
Medicine Regulatory T cells, damage-associated molecular patterns, and myeloid-derived suppressor cells in bronchoalveolar lavage fluid interlinked with chronic obstructive?… [Pubmed:35687771]
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