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dc.contributor.authorWang, Ying
dc.contributor.authorLiang, Xuan
dc.contributor.authorXu, Jie
dc.contributor.authorNan, Lan
dc.contributor.authorLiu, Fang
dc.contributor.authorDuan, Guangcai
dc.contributor.authorYang, Haiyan
dc.date.accessioned2022-06-17T08:00:32Z
dc.date.available2022-06-17T08:00:32Z
dc.date.issued2022
dc.date.submitted2022-03-24
dc.identifier.issn1664-302X
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/338191
dc.description.abstractStaphylococcus aureus is one of the main pathogens causing hospital and community-acquired infections, in particular, infections caused by methicillin-resistant Staphylococcus aureus (MRSA) cause a higher mortality rate than those caused by methicillin-sensitive strains, which poses a serious global public health problem. Therefore, rapid and ultrasensitive detection of patients with clinical MRSA infection and timely control of infection are essential. Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated proteins (Cas) based on nucleic acid detection methods are well-known for its high specificity and sensitivity and programmability. Here, we successfully proposed a method based on CRISPR-Cas12a combined with recombinase-aided amplification (RAA) through fluorescent readout to achieve accurate identification and highly sensitive detection of MRSA in clinical samples. Results showed that the limit of detection (LoD) of the RAA-Cas12a method could reach 10 copies/μl at 60 min of reaction. Specificity tests showed that the method could distinguish MRSA from clinically common bacteria. The results of RAA-Cas12a were consistent with that of antimicrobial susceptibility tests (AST) and polymerase chain reaction (PCR) in 83 clinical samples. These results indicated that the detection method based on RAA-Cas12a has high sensitivity and specificity, and provides important value for rapid detection of MRSA.
dc.languageen
dc.publisherFrontiers Media SA
dc.subjectMicrobiology
dc.subjectStaphylococcus aureus
dc.subjectMRSA
dc.subjectCRISPR-Cas12a
dc.subjectRAA
dc.subjectdetection
dc.titleRapid and Ultrasensitive Detection of Methicillin-Resistant Staphylococcus aureus Based on CRISPR-Cas12a Combined With Recombinase-Aided Amplification.
dc.typeArticle
dc.date.updated2022-06-17T08:00:31Z
prism.publicationNameFront Microbiol
prism.volume13
dc.identifier.doi10.17863/CAM.85602
dcterms.dateAccepted2022-05-09
rioxxterms.versionofrecord10.3389/fmicb.2022.903298
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.identifier.eissn1664-302X
cam.issuedOnline2022-06-03


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