細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)
Multiplex Assay Kit for Programmed Cell Death Protein 1 Ligand 1 (PDL1) ,etc. by FLIA (Flow Luminescence Immunoassay)
CD274; PDCD1LG1; B7-H; B7H1; PD-L1; PDCD1L1; PDCD1-LG1; Programed Death Ligand 1
（注：單次混測多因子不超過8個指標 ）
- 編號LMA788Mu
- 物種Mus musculus (Mouse，小鼠) 相同的名稱，不同的物種。
- 實驗方法雙抗夾心
- 反應時長3.5h
- 檢測范圍0.01-10ng/mL
- 靈敏度最小可檢測劑量小于等于0.003 ng/mL.
- 樣本類型Serum, plasma, tissue homogenates and other biological fluids
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產品包裝(模擬)
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產品包裝(模擬)
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通過ISO 9001、ISO 13485質量體系認證
特異性
本試劑盒用于檢測細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)，經檢測與其它相似物質無明顯交叉反應。
由于受到技術及樣本來源的限制，不可能完成對所有相關或相似物質交叉反應檢測，因此本試劑盒有可能與未經檢測的其它物質有交叉反應。
回收率
分別于定值血清及血漿樣本中加入一定量的細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)（加標樣品），重復測定并計算其均值，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) | 81-97 | 92 |
| EDTA plasma(n=5) | 78-101 | 90 |
| heparin plasma(n=5) | 81-101 | 85 |
精密度
精密度用樣品測定值的變異系數CV表示。CV(%) = SD/mean×100
批內差：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測定8次，分別計算不同濃度樣本的平均值及SD值。
批內差： CV<10%
批間差： CV<12%
線性
在定值血清及血漿樣本內加入適量的細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)，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細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)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) | 79-91% | 85-101% | 80-102% | 92-101% |
| EDTA plasma(n=5) | 84-101% | 91-99% | 78-91% | 82-97% |
| heparin plasma(n=5) | 79-103% | 96-104% | 85-99% | 79-95% |
穩定性
經測定，試劑盒在有效期內按推薦溫度保存，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，實驗室的環境條件需盡量保持一致，尤其是實驗室內溫度、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. 實驗前標準品、試劑及樣本準備；
2. 加樣（標準品、樣本、磁珠）標準品或樣本100μL及磁珠10μL，
37°C酶標板振蕩器孵育90分鐘；
3. 磁吸甩干，加檢測溶液A100μL，37°C酶標板振蕩器孵育60分鐘；
4. 磁吸洗板3次；
5. 加檢測溶液B100μL，37°C振動孵育30分鐘；
6. 磁吸洗板3次；
7. 加鞘液100μL，旋渦震蕩2分鐘后讀數。
實驗原理
將細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)抗體包被于磁珠，制成固相載體，向微孔中分別加入標準品或標本以及磁珠，其中的細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)與連接于固相載體上的抗體結合，然后加入生物素化的細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)抗體，將未結合的生物素化抗體洗凈后，加入PE標記的親和素，再次徹底洗滌后即可上機讀數。MFI值和樣品中的細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法)呈正相關。
贈品
增值服務
相關產品
| 編號 | 適用物種：Mus musculus (Mouse，小鼠) | 應用(僅供研究使用，不用于臨床診斷！) |
| RPA788Mu01 | 細胞程序性死亡蛋白1配體1(PDL1)重組蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
| RPA788Mu02 | 細胞程序性死亡蛋白1配體1(PDL1)重組蛋白 | Positive Control; Immunogen; SDS-PAGE; WB. |
| PAA788Mu01 | 細胞程序性死亡蛋白1配體1(PDL1)多克隆抗體 | WB; IHC; ICC; IP. |
| PAA788Mu02 | 細胞程序性死亡蛋白1配體1(PDL1)多克隆抗體 | WB; IHC; ICC; IP. |
| SEA788Mu | 細胞程序性死亡蛋白1配體1(PDL1)檢測試劑盒(酶聯免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| AEA788Mu | 抗細胞程序性死亡蛋白1配體1抗體(Anti-PDL1)檢測試劑盒(酶聯免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antibody Detection. |
| LMA788Mu | 細胞程序性死亡蛋白1配體1(PDL1)等多因子檢測試劑盒(流式熒光發光法) | FLIA Kit for Antigen Detection. |
參考文獻
| 雜志 | 參考文獻 |
| Chinese Journal of Cancer | Level of circulating PD-L1 expression in patients with advanced gastric cancer and its clinical implications [NCBI: PMC3937742] |
| Leukemia.? | High level of soluble programmed cell death ligand 1 in blood impacts overall survival in aggressive diffuse large B-Cell lymphoma: results from a French multicenter clinical trial. [Pubmed:24732592] |
| Diabetes?Metab Res Rev. | PD‐L1 gene polymorphisms and low serum level of PD‐L1 protein are associated to type 1 diabetes in Chile [Pubmed:24816853] |
| Lancet Haematol | Ratios of T-cell immune effectors and checkpoint molecules as prognostic biomarkers in diffuse large B-cell lymphoma: a population-based study [PubMed: 26686046] |
| Eur J Cancer.? | High levels of the soluble programmed death-ligand (sPD-L1) identify hepatocellular carcinoma patients with a poor prognosis. [Pubmed:27039170] |
| Journal of Cancer Research and Clinical Oncology | Serum levels of soluble programmed cell death ligand 1 as a prognostic factor on the first-line treatment of metastatic or recurrent gastric cancer [article:10.1007] |
| Journal of Hematology & Oncology | PD-L1 is upregulated by EBV-driven LMP1 through NF-κB pathway and correlates with poor prognosis in natural killer/T-cell lymphoma [pubmed:27737703] |
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| Serum levels of soluble programmed death-ligand 1 (sPD-L1) in patients with primary central nervous system diffuse large B-cell lymphoma [Pubmed: 32054467] | |
| LIVER INTERNATIONAL | The prognostic role of soluble transforming growth factor‐β and its correlation with soluble programmed death‐ligand 1 in biliary tract cancer [Pubmed: 32780918] |
| CANCER IMMUNOLOGY IMMUNOTHERAPY | Prognostic impacts of tumoral expression and serum levels of PD-L1 and CTLA-4 in colorectal cancer patients [Pubmed: 32577816] |
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