Agarose Hydrogel-Boosted One-Tube RPA-CRISPR/Cas12a Assay for Robust Point-of-Care Detection of Zoonotic Nematode Anisakis

Rapid and accurate detection of the zoonotic nematode Anisakis is poised to control its epidemic. The clustered regularly interspaced short palindromic repeats (CRISPR)/Cas-associated assay shows great potential in the detection of pathogenic microorganisms. The one-tube method integrated the CRISPR system with the recombinase polymerase amplification (RPA) system to avoid the risk of aerosol pollution; however, it suffers from low sensitivity due to the incompatibility of the two systems and additional manual operations. Therefore, in the present study, the agarose hydrogel boosted one-tube RPA-CRISPR/Cas12a assay was constructed by adding the CRISPR system to the agarose hydrogel, which avoided the initially low amplification efficiency of RPA caused by the cleavage of Cas12a and achieved reaction continuity. The sensitivity was 10-fold higher than that of the one-tube RPA-CRISPR/Cas12a system. This method was used for Anisakis detection within 80 min from the sample to result, achieving point-of-care testing (POCT) through a smartphone and a portable device. This study provided a novel toolbox for POCT with significant application value in preventing Anisakis infection.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:72

Enthalten in:

Journal of agricultural and food chemistry - 72(2024), 14 vom: 10. Apr., Seite 8257-8268

Sprache:

Englisch

Beteiligte Personen:

Zhao, Lianjing [VerfasserIn]
Wang, Haolu [VerfasserIn]
Chen, Xiuqin [VerfasserIn]
Wang, Liping [VerfasserIn]
Abulaizi, Wulamujiang [VerfasserIn]
Yang, Yaming [VerfasserIn]
Li, Benfu [VerfasserIn]
Wang, Cunzhou [VerfasserIn]
Bai, Xue [VerfasserIn]

Links:

Volltext

Themen:

9012-36-6
Agarose
CRISPR/Cas12a
EC 2.7.7.-
Hydrogels
Journal Article
Nucleotidyltransferases
One-tube assay
Parasite detection
Point-of-care testing
Recombinases
Sepharose

Anmerkungen:

Date Completed 11.04.2024

Date Revised 11.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.jafc.4c00204

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370204611