title: Sensitive and Specific Neutrophil Gelatinase-associated Lipocalin Detection by Solid-phase Proximity Ligation Assay.
abstract: Neutrophil gelatinase-associated lipocalin (NGAL) is a candidate diagnostic biomarker for acute kidney injury (AKI). Since there is no specific treatment to reverse AKI, a good biomarker such as NGAL can increase the performance of clinical care. Therefore, a timely, specific and sensitive assay for detecting NGAL is critical for clinical determination. In this study, we established a solid-phase proximity ligation assay for the detection of NGAL using polyclonal antibodies conjugated with a pair of oligonucleotides. The data are read out as the Ct value via quantitative real-time polymerase chain reaction (qPCR). Our results demonstrate that this new assay performs with good specificity and sensitivity for detection of NGAL spiked in buffer or serum, which indicates that the solid-phase proximity ligation technique is a promising tool for diagnostics in clinical decisions.
authors.affiliation: The Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University.
authors.forename: Yawen
authors.initials: Y
authors.lastname: Mu
authors.forename: Hao
authors.initials: H
authors.lastname: Xie
authors.forename: Yakun
authors.initials: Y
authors.lastname: Wan
mesh_terms: D000209:Acute-Phase Proteins / Q000032:analysis*; D055910:Antibodies, Immobilized / Q000737:chemistry; D001483:Base Sequence; D015374:Biosensing Techniques / Q000379:methods*; D006801:Humans; D057230:Limit of Detection; D000071068:Lipocalin-2; D054834:Lipocalins / Q000032:analysis*; D015345:Oligonucleotide Probes / Q000737:chemistry / Q000235:genetics; D011518:Proto-Oncogene Proteins / Q000032:analysis*; D060888:Real-Time Polymerase Chain Reaction
chemical_list: D000209:Acute-Phase Proteins; D055910:Antibodies, Immobilized; C489506:LCN2 protein, human; D000071068:Lipocalin-2; D054834:Lipocalins; D015345:Oligonucleotide Probes; D011518:Proto-Oncogene Proteins