Article ; Online: Highly sensitive and specific graphene oxide-based FRET aptasensor for quantitative detection of human soluble growth stimulating gene protein 2.
2024 Volume 271, Page(s) 125629
Abstract: Soluble growth stimulation expressed gene 2 (sST2) is a new generation biomarker in the diagnosis and prognosis of heart failure (HF). Here, the sST2-specific aptamers were selected from a random ssDNA library with the full length of 88 nucleotides (nt) ... ...
Abstract | Soluble growth stimulation expressed gene 2 (sST2) is a new generation biomarker in the diagnosis and prognosis of heart failure (HF). Here, the sST2-specific aptamers were selected from a random ssDNA library with the full length of 88 nucleotides (nt) via target-immobilized magnetic beads (MB)-based systematic evolution of ligands by exponential enrichment (SELEX) technology. After eight rounds of selection, six aptamers with the most enrichment were selected. Among, the aptamer L1 showed the high-affinity binding to sST2 with the lowest Kd value (77.3 ± 0.05 nM), which was chosen as the optimal aptamer for further molecular docking. Then, the aptamer L1 was used to construct a graphene oxide (GO) - based fluorescence resonance energy transfer (FRET) biosensor for sST2, which exhibits a linear detection range of 0.1-100 μg/ml and a detection limit of 3.7 ng/ml. The aptasensor was applied to detect sST2 in real samples, with a good correlation and agreement with the traditional enzyme-linked immunosorbent assay (ELISA) when quantitative analyzing the sST2 concentration in serum samples from HF patients. The results show that not only an efficient strategy for screening the practicable aptamer, but also a rapid and sensitive detection platform for sST2 were established. |
---|---|
MeSH term(s) | Humans ; Aptamers, Nucleotide/genetics ; Chromatography, Affinity ; DNA, Single-Stranded ; Fluorescence Resonance Energy Transfer ; Graphite ; Heart Failure/diagnosis ; Molecular Docking Simulation ; Oligonucleotides ; SELEX Aptamer Technique ; Biomarkers/analysis ; Receptors, Interleukin-1/analysis |
Chemical Substances | Aptamers, Nucleotide ; DNA, Single-Stranded ; graphene oxide ; Graphite (7782-42-5) ; Oligonucleotides ; Biomarkers ; IL1RL1 protein, human ; Receptors, Interleukin-1 |
Language | English |
Publishing date | 2024-01-09 |
Publishing country | Netherlands |
Document type | Journal Article |
ZDB-ID | 1500969-5 |
ISSN | 1873-3573 ; 0039-9140 |
ISSN (online) | 1873-3573 |
ISSN | 0039-9140 |
DOI | 10.1016/j.talanta.2024.125629 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
Full text online
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.