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• W1981001144 abstract "In this paper we demonstrate that peptide nucleic acids (PNAs) are excellent probes able to detect the W1282X point mutation of the cystic fibrosis (CF) gene when biospecific interaction analysis (BIA) by surface plasmon resonance (SPR) and biosensor technologies is performed. The results reported here suggest that BIA is an easy, fast, and automatable approach for detecting mutations of CF, allowing real-time monitoring of hybridization between 9-mer CF PNA probes and target biotinylated PCR products generated from healthy, heterozygous subjects and homozygous W1282X samples and immobilized on streptavidin-coated sensor chips. This method is, to our knowledge, the first application of PNAs, BIA, and SPR to a human hereditary mutation, and demonstrates the feasibility of these approaches for discriminating between normal and mutated target DNA. We like to point out that the procedure described in this paper is rapid and informative; results are obtained within a few minutes. This could be of great interest for molecular pre-implantation diagnosis to discriminate homozygous CF embryos from heterozygous and healthy embryos. Other advantages of the methodology described in the present paper are (a) that it is a nonradioactive methodology and (b) that gel electrophoresis and/or dot-spot analysis are not required. More importantly, the demonstration that SPR-based BIA could be associated with microarray technology allows us to hypothesize that the method described in the present paper could be used for the development of a protocol employing multispotting on SPR biosensors of many CF-PCR products and a real-time simultaneous analysis of hybridization to PNA probes. These results are in line with the concept that SPR could be an integral part of a fully automated diagnostic system based on the use of laboratory workstations, biosensors, and arrayed biosensors for DNA isolation, preparation of PCR reactions, and identification of point mutations." @default.
• W1981001144 created "2016-06-24" @default.
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• W1981001144 date "2001-10-01" @default.
• W1981001144 modified "2023-10-13" @default.
• W1981001144 title "Peptide Nucleic Acids and Biosensor Technology for Real-Time Detection of the Cystic Fibrosis W1282X Mutation by Surface Plasmon Resonance" @default.
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• W1981001144 doi "https://doi.org/10.1038/labinvest.3780355" @default.
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