半乳糖凝集素9(GAL9)檢測試劑盒(酶聯(lián)免疫吸附試驗法)
ELISA Kit for Galectin 9 (GAL9)
LGALS9; Ecalectin; Lectin,Galactoside-Binding Soluble 9; Tumor antigen HOM-HD-21
- 編號SEA309Ra
- 物種Rattus norvegicus (Rat,大鼠) 相同的名稱,不同的物種。
- 實驗方法雙抗夾心
- 反應(yīng)時長3h
- 檢測范圍7.8-500pg/mL
- 靈敏度最小可檢測劑量小于等于2.9pg/mL.
- 樣本類型Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
- 下載 英文說明書 中文說明書
- 規(guī)格 48T96T 96T*5 96T*10 96T*100
- 價格 ¥ 2873 ¥ 4104 ¥ 18468 ¥ 34884 ¥ 287280
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特異性
本試劑盒用于檢測半乳糖凝集素9(GAL9),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,不可能完成對所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質(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)測定并計算其均值,回收率為測定值與理論值的比率。
樣本 | 回收率范圍(%) | 平均回收率(%) |
serum(n=5) | 97-105 | 101 |
EDTA plasma(n=5) | 97-105 | 102 |
heparin plasma(n=5) | 82-105 | 90 |
精密度
精密度用樣品測定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對低、中、高值定值樣本進行定量檢測,每份樣本連續(xù)測定20 次,分別計算不同濃度樣本的平均值及SD值。
批間差:選取3個不同批次的試劑盒分別對低、中、高值定值樣本進行定量測定,每個樣本使用同一試劑盒重復(fù)測定8次,分別計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)含量的測定值與理論值的比率。
樣本 | 1:2 | 1:4 | 1:8 | 1:16 |
serum(n=5) | 84-96% | 80-96% | 83-96% | 87-101% |
EDTA plasma(n=5) | 96-105% | 86-96% | 82-99% | 95-103% |
heparin plasma(n=5) | 83-104% | 79-89% | 80-101% | 79-93% |
穩(wěn)定性
經(jīng)測定,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%。
為減小外部因素對試劑盒破壞前后檢測值的影響,實驗室的環(huán)境條件需盡量保持一致,尤其是實驗室內(nèi)溫度、濕度及溫育條件。其次由同一實驗員來進行操作可減少人為誤差。
實驗流程
1. 實驗前標(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;
3. 吸棄,加檢測溶液A100µL,37°C孵育1小時;
4. 洗板3次;
5. 加檢測溶液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)。
實驗原理
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在過氧化物酶的催化下轉(zhuǎn)化成藍色,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波長下測定吸光度(O.D.值),計算樣品濃度。
增值服務(wù)
相關(guān)產(chǎn)品
編號 | 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!) |
RPA309Ra02 | 半乳糖凝集素9(GAL9)重組蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
APA309Ra01 | 半乳糖凝集素9(GAL9)活性蛋白 | Cell?culture;?Activity?Assays. |
RPA309Ra01 | 半乳糖凝集素9(GAL9)重組蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
PAA309Ra02 | 半乳糖凝集素9(GAL9)多克隆抗體 | WB; IHC; ICC; IP. |
PAA309Ra01 | 半乳糖凝集素9(GAL9)多克隆抗體 | WB; IHC; ICC; IP. |
LAA309Ra71 | 半乳糖凝集素9(GAL9)多克隆抗體(生物素標(biāo)記) | WB; IHC; ICC. |
SEA309Ra | 半乳糖凝集素9(GAL9)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
LMA309Ra | 半乳糖凝集素9(GAL9)等多因子檢測試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. |
參考文獻
雜志 | 參考文獻 |
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] |