PMID- 35057930 OWN - NLM STAT- MEDLINE DCOM- 20220124 LR - 20220124 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 1192 DP - 2022 Feb 1 TI - Selection and characterization of DNA aptamers for highly selective recognition of the major allergen of olive pollen Ole e 1. PG - 339334 LID - S0003-2670(21)01160-0 [pii] LID - 10.1016/j.aca.2021.339334 [doi] AB - In this study, single-stranded DNA aptamers with binding affinity to Ole e 1, the major allergen of olive pollen, were selected using systematic evolution of ligands by exponential enrichment (SELEX) method. Binding of the aptamers was firstly established by enzyme-linked oligonucleotide assay (ELONA) and aptaprecipitation assays. Additionally, aptamer-modified monolithic capillary chromatography was used in order to evaluate the recognition of this allergenic protein against other non-target proteins. The results indicated that AptOle1#6 was the aptamer that provided the highest affinity for Ole e 1. The selected aptamer showed good selective recognition of this protein, being not able to retain other non-target proteins (HSA, cyt c, and other pollen protein such as Ole e 9). The feasibility of the affinity monolithic column was demonstrated by selective recognition of Ole e 1 in an allergy skin test. The stability and reproducibility of this monolithic column was suitable, with relative standard deviations (RSDs) in retention times and peak area values of 7.8 and 9.3%, respectively (column-to-column reproducibility). This is the first study that describes the design of an efficient DNA aptamer for this relevant allergen. CI - Copyright (c) 2021 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Vergara-Barberan, Maria AU - Vergara-Barberan M AD - Department of Analytical Chemistry, University of Valencia, C. Doctor Moliner 50, E-46100, Burjassot, Valencia, Spain. FAU - Lerma-Garcia, Maria Jesus AU - Lerma-Garcia MJ AD - Department of Analytical Chemistry, University of Valencia, C. Doctor Moliner 50, E-46100, Burjassot, Valencia, Spain. FAU - Simo-Alfonso, Ernesto F AU - Simo-Alfonso EF AD - Department of Analytical Chemistry, University of Valencia, C. Doctor Moliner 50, E-46100, Burjassot, Valencia, Spain. FAU - Garcia-Hernandez, Marta AU - Garcia-Hernandez M AD - Grupo de Aptameros. Departamento de Bioquimica-Investigacion, Hospital Universitario Ramon y Cajal (IRYCIS), Carretera de Colmenar Viejo Km.9.100, CP-28034, Madrid, Spain. FAU - Martin, M Elena AU - Martin ME AD - Grupo de Aptameros. Departamento de Bioquimica-Investigacion, Hospital Universitario Ramon y Cajal (IRYCIS), Carretera de Colmenar Viejo Km.9.100, CP-28034, Madrid, Spain. FAU - Garcia-Sacristan, Ana AU - Garcia-Sacristan A AD - Aptus Biotech SL, Av. Cardenal Herrera Oria 298, CP-28035, Madrid, Spain. FAU - Gonzalez, Victor M AU - Gonzalez VM AD - Grupo de Aptameros. Departamento de Bioquimica-Investigacion, Hospital Universitario Ramon y Cajal (IRYCIS), Carretera de Colmenar Viejo Km.9.100, CP-28034, Madrid, Spain; Aptus Biotech SL, Av. Cardenal Herrera Oria 298, CP-28035, Madrid, Spain. FAU - Herrero-Martinez, Jose Manuel AU - Herrero-Martinez JM AD - Department of Analytical Chemistry, University of Valencia, C. Doctor Moliner 50, E-46100, Burjassot, Valencia, Spain. Electronic address: jmherrer@uv.es. LA - eng PT - Journal Article DEP - 20211202 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (Allergens) RN - 0 (Aptamers, Nucleotide) SB - IM MH - Allergens MH - *Aptamers, Nucleotide MH - *Olea MH - Pollen MH - Reproducibility of Results OTO - NOTNLM OT - Affinity-based monolith OT - Allergen OT - Aptamer OT - Enzyme-linked oligonucleotide assay OT - Ole e 1 OT - Olive pollen COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/01/22 06:00 MHDA- 2022/01/27 06:00 CRDT- 2022/01/21 05:48 PHST- 2021/07/29 00:00 [received] PHST- 2021/11/23 00:00 [revised] PHST- 2021/11/25 00:00 [accepted] PHST- 2022/01/21 05:48 [entrez] PHST- 2022/01/22 06:00 [pubmed] PHST- 2022/01/27 06:00 [medline] AID - S0003-2670(21)01160-0 [pii] AID - 10.1016/j.aca.2021.339334 [doi] PST - ppublish SO - Anal Chim Acta. 2022 Feb 1;1192:339334. doi: 10.1016/j.aca.2021.339334. Epub 2021 Dec 2.