Generic Platform for the Multiplexed Targeted Electrochemical Detection of Osteoporosis-Associated Single Nucleotide Polymorphisms Using Recombinase Polymerase Solid-Phase Primer Elongation and Ferrocene-Modified Nucleoside Triphosphates

0574261 - ÚOCHB 2024 RIV US eng J - Článek v odborném periodiku
Ortiz, M. - Jauset-Rubio, M. - Trummer, O. - Foessl, I. - Kodr, David - Acero, J. L. - Botero, M. L. - Biggs, P. - Lenartowicz, D. - Trajanoska, K. - Rivadeneira, F. - Hocek, Michal - Obermayer-Pietsch, B. - O'Sullivan, C. K.
Generic Platform for the Multiplexed Targeted Electrochemical Detection of Osteoporosis-Associated Single Nucleotide Polymorphisms Using Recombinase Polymerase Solid-Phase Primer Elongation and Ferrocene-Modified Nucleoside Triphosphates.
ACS Central Science. Roč. 9, č. 8 (2023), s. 1591-1602. ISSN 2374-7943. E-ISSN 2374-7951
Grant CEP: GA ČR(CZ) GX20-00885X
Institucionální podpora: RVO:61388963
Klíčová slova: bone mineral density * chain reaction * DNA
Obor OECD: Organic chemistry
Impakt faktor: 18.2, rok: 2022
Způsob publikování: Open access
https://doi.org/10.1021/acscentsci.3c00243

Osteoporosis is a multifactorial disease influenced by genetic and environmental factors, which contributes to an increased risk of bone fracture, but early diagnosis of this disease cannot be achieved using current techniques. We describe a generic platform for the targeted electrochemical genotyping of SNPs identified by genome-wide association studies to be associated with a genetic predisposition to osteoporosis. The platform exploits isothermal solid-phase primer elongation with ferrocene-labeled nucleoside triphosphates. Thiolated reverse primers designed for each SNP were immobilized on individual gold electrodes of an array. These primers are designed to hybridize to the SNP site at their 3′OH terminal, and primer elongation occurs only where there is 100% complementarity, facilitating the identification and heterozygosity of each SNP under interrogation. The platform was applied to real blood samples, which were thermally lysed and directly used without the need for DNA extraction or purification. The results were validated using Taqman SNP genotyping assays and Sanger sequencing. The assay is complete in just 15 min with a total cost of 0.3€ per electrode. The platform is completely generic and has immense potential for deployment at the point of need in an automated device for targeted SNP genotyping with the only required end-user intervention being sample addition.
Trvalý link: https://hdl.handle.net/11104/0344603