Accelerated RNA detection using tandem CRISPR nucleases.
Accelerated RNA detection using tandem CRISPR nucleases.
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DOI:
10.1038/s41589-021-00842-2
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发表时间:
2021-09
影响因子:
14.8
通讯作者:
Doudna, Jennifer A.
中科院分区:
文献类型:
--
作者:
Liu, Tina Y.;Knott, Gavin J.;Smock, Dylan C. J.;Desmarais, John J.;Son, Sungmin;Bhuiya, Abdul;Jakhanwal, Shrutee;Prywes, Noam;Agrawal, Shreeya;Derby, Maria Diaz de Leon;Switz, Neil A.;Armstrong, Maxim;Harris, Andrew R.;Charles, Emeric J.;Thornton, Brittney W.;Fozouni, Parinaz;Shu, Jeffrey;Stephens, Stephanie, I;Kumar, G. Renuka;Zhao, Chunyu;Mok, Amanda;Iavarone, Anthony T.;Escajeda, Arturo M.;McIntosh, Roger;Kim, Shin E.;Dugan, Eli J.;Pollard, Katherine S.;Tan, Ming X.;Ott, Melanie;Fletcher, Daniel A.;Lareau, Liana F.;Hsu, Patrick D.;Savage, David F.;Doudna, Jennifer A.
Direct, amplification-free detection of RNA has the potential to transform molecular diagnostics by enabling simple on-site analysis of human or environmental samples. CRISPR-Cas nucleases offer programmable RNA-guided recognition of RNA that triggers cleavage and release of a fluorescent reporter molecule, but long reaction times hamper sensitivity and speed when applied to point-of-care testing. Here we show that unrelated CRISPR nucleases can be deployed in tandem to provide both direct RNA sensing and rapid signal generation, thus enabling robust detection of ~30 RNA copies/microliter in 20 minutes. Combining RNA-guided Cas13 and Csm6 with a chemically stabilized activator creates a one-step assay that can detect SARS-CoV-2 RNA extracted from nasopharyngeal samples with qRT-PCR-derived Ct values up to 33 in microfluidic chips, using a compact imaging system. This Fast Integrated Nuclease Detection In Tandem (FIND-IT) approach enables direct RNA detection in a simple format that is amenable to point-of-care infection diagnosis, as well as to a wide range of other diagnostic or research applications.
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影响因子:
64.8
作者:
East-Seletsky A;O'Connell MR;Knight SC;Burstein D;Cate JH;Tjian R;Doudna JA
通讯作者:
Doudna JA
影响因子:
64.8
作者:
Athukoralage JS;Rouillon C;Graham S;Grüschow S;White MF
通讯作者:
White MF
影响因子:
64.8
作者:
Ackerman, Cheri M.;Myhrvold, Cameron;Sabeti, Pardis C.
通讯作者:
Sabeti, Pardis C.
影响因子:
16.6
作者:
Liu, Tina Y.;Liu, Jun-Jie;Doudna, Jennifer A.
通讯作者:
Doudna, Jennifer A.
影响因子:
16
作者:
Lau, Rebecca K.;Ye, Qiaozhen;Corbett, Kevin D.
通讯作者:
Corbett, Kevin D.