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KMID : 1137820210420030125
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의공학회지
2021 Volume.42 No. 3 p.125 ~ p.142
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The Principle and Trends of CRISPR/Cas Diagnosis
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Park Jee-Woong
Kang Bong-Keun
Shin Hwa-Hui
Shin Jun-Geun
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Abstract
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The POCT (point-of-care test) sensing that has been a fast-developing field is expected to be a next gen?eration technology in health care. The POCT sensors for the detection of proteins, small molecules and especially nucleic acids have lately attracted considerable attention. According to the World Health Organization (WHO), the POCT methods are required to follow the ASSURED guidelines (Affordable, Sensitive, Specific, User- friendly, Robust and rapid, Equipment-free, Deliverable to all people who need the test). Recently, several CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) based diagnostic techniques using the sensitive gene recognition function of CRISPR have been reported. CRISPR/Cas (Cas, CRISPR associated protein) systems based detec?tion technology is the most innovative gene analysis technology that is following the ASSURED guidelines. It is being re-emerged as a powerful diagnostic tool that can detect nucleic acids due to its characteristics that enable rapid, sensitive and specific analyses of nucleic acid. The first CRISPR-based diagnosis begins with the discovery of the additional function of Cas13a. The enzymatic cleavage occurs when the con?jugate of Cas protein and CRISPR RNA (crRNA) detect a specific complementary sequence of the target sequence. Enzymatic cleavage occurs on not only the target sequence, but also all surrounding non-target single-stranded RNAs. This discovery was immediately utilized as a biosensor, and numerous sensor studies using CRISPR have been reported since then. In this review, the concept of CRISPR, the char?acteristics of the Cas protein required for CRISPR diagnosis, the current research trends of CRISPR diag?nostic technology, and some aspects to be improved in the future are covered.
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KEYWORD
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CRISPR/Cas, Diagnosis, POCT, Nucleic acid
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