肾损伤标志物NGAL的免疫学检测

NGAL是中性粒细胞明胶酶相关脂质运载蛋白,并在人体组织细胞中广泛分布,如支气管、胃、小肠、胰腺、肾、前列腺、胸腺等。近年研究发现,NGAL与肾脏关系十分密切,目前有大量的实验和临床研究表明,肾损伤后NGAL的表达量显著增高并分泌到体液中,NGAL被认为是新的早期肾损伤生化标志物。那么,制备特异性NGAL抗体并建立相应的NGAL免疫检测方法非常重要。

云克隆公司原核表达了重组人NGAL蛋白(RPB388Hu01)作为抗体制备的免疫原,并制备出特异性NGAL单克隆(MAB388Hu22)和多克隆抗体(PAB388Hu01),同时还有标记抗体(PAB388Hu71PAB388Hu81)。对于这些抗体的特异性我们都有实验数据进行支撑,如下图的WB和IHC即对抗体的检测验证。

在获得特异性抗体后就需要建立NGAL免疫学检测方法,我司应用棋盘滴定法确定ELISA体系最佳工作条件,研发出了NGAL定量检测ELISA试剂盒(SEB388Hu)以及CLIA试剂盒(SCB388Hu)。试剂盒SEB388Hu的线性检测范围0.156-10ng/mL,灵敏度达到0.069ng/ml,回收率为78%-102%,试剂盒的线性、稳定性,批内批间CV%都经过反复的验证,产品可靠。其中有关NGAL检测试剂盒的发表文献就高达11篇,简要列出几篇文献见下表:

MagazineReference
International Journal of EndocrinologyCholesterol Contributes to Diabetic Nephropathy throughSCAP-SREBP-2 Pathway  Read more(Pubmed:24369464)
European Respiratory JournalDifferences in plasma and sputum biomarkers between COPDand COPD-asthma overlap  Readmore(Pubmed: 23794464)
Biomedical & Pharmacology JournalHs-CRP and Adipokin (Lcn2): Response to Exercise Trainingin Obese Men   Readmore(Biomedpharmajournal:Source)
Int J Chron Obstruct Pulmon Dis.Increased serum levels of lipocalin-1 and-2 in patientswith stable chronic obstructive pulmonary disease   Read more(Pubmed:Pmc4043430)
International Journal of Nephrology and Renovascular DiseaseCorrelation of serum neutrophil gelatinase-associatedlipocalin with acute kidney injury in hypertensive disorders of pregnancy   Read more(PubMed: PMC3794962)

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