腎損傷標志物NGAL的免疫學檢測
NGAL是中性粒細胞明膠酶相關脂質運載蛋白,并在人體組織細胞中廣泛分布,如支氣管、胃、小腸、胰腺、腎、前列腺、胸腺等。近年研究發(fā)現(xiàn),NGAL與腎臟關系十分密切,目前有大量的實驗和臨床研究表明,腎損傷后NGAL的表達量顯著增高并分泌到體液中,NGAL被認為是新的早期腎損傷生化標志物。那么,制備特異性NGAL抗體并建立相應的NGAL免疫檢測方法非常重要。
云克隆公司原核表達了重組人NGAL蛋白(RPB388Hu01)作為抗體制備的免疫原,并制備出特異性NGAL單克隆(MAB388Hu22)和多克隆抗體(PAB388Hu01),同時還有標記抗體(PAB388Hu71、PAB388Hu81)。對于這些抗體的特異性我們都有實驗數(shù)據(jù)進行支撐,如下圖的WB和IHC即對抗體的檢測驗證。
在獲得特異性抗體后就需要建立NGAL免疫學檢測方法,我司應用棋盤滴定法確定ELISA體系最佳工作條件,研發(fā)出了NGAL定量檢測ELISA試劑盒(SEB388Hu)以及CLIA試劑盒(SCB388Hu)。試劑盒SEB388Hu的線性檢測范圍0.156-10ng/mL,靈敏度達到0.069ng/ml,回收率為78%-102%,試劑盒的線性、穩(wěn)定性,批內批間CV%都經過反復的驗證,產品可靠。其中有關NGAL檢測試劑盒的發(fā)表文獻就高達11篇,簡要列出幾篇文獻見下表:
Magazine | Reference |
International Journal of Endocrinology | Cholesterol Contributes to Diabetic Nephropathy throughSCAP-SREBP-2 Pathway Read more(Pubmed:24369464) |
European Respiratory Journal | Differences in plasma and sputum biomarkers between COPDand COPD-asthma overlap Readmore(Pubmed: 23794464) |
Biomedical & Pharmacology Journal | Hs-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 Disease | Correlation of serum neutrophil gelatinase-associatedlipocalin with acute kidney injury in hypertensive disorders of pregnancy Read more(PubMed: PMC3794962) |
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