Heavily and fully modified RNAs guide efficient SpyCas9-mediated genome editing.
Heavily and fully modified RNAs guide efficient SpyCas9-mediated genome editing.
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DOI:
10.1038/s41467-018-05073-z
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发表时间:
2018-07-06
影响因子:
16.6
通讯作者:
Sontheimer EJ
中科院分区:
文献类型:
--
作者:
Mir A;Alterman JF;Hassler MR;Debacker AJ;Hudgens E;Echeverria D;Brodsky MH;Khvorova A;Watts JK;Sontheimer EJ
RNA-based drugs depend on chemical modifications to increase potency and to decrease immunogenicity in vivo. Chemical modification will likely improve the guide RNAs involved in CRISPR-Cas9-based therapeutics as well. Cas9 orthologs are RNA-guided microbial effectors that cleave DNA. Here, we explore chemical modifications at all positions of the crRNA guide and tracrRNA cofactor. We identify several heavily modified versions of crRNA and tracrRNA that are more potent than their unmodified counterparts. In addition, we describe fully chemically modified crRNAs and tracrRNAs (containing no 2′-OH groups) that are functional in human cells. These designs will contribute to Cas9-based therapeutics since heavily modified RNAs tend to be more stable in vivo (thus increasing potency). We anticipate that our designs will improve the use of Cas9 via RNP and mRNA delivery for in vivo and ex vivo purposes. Resistance of gRNA to ubiquitous ribonucleases is required for CRISPR-Cas9-based therapeutics. Here, the authors explore chemical modifications at all positions of the crRNA guide and tracrRNA cofactor, and identify modified versions that are more potent and stable than their unmodified counterparts in editing human cells.
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影响因子:
64.8
作者:
Anders, Carolin;Niewoehner, Ole;Duerst, Alessia;Jinek, Martin
通讯作者:
Jinek, Martin
影响因子:
46.9
作者:
Tsai, Shengdar Q.;Zheng, Zongli;Nguyen, Nhu T.;Liebers, Matthew;Topkar, Ved V.;Thapar, Vishal;Wyvekens, Nicolas;Khayter, Cyd;Iafrate, A. John;Le, Long P.;Aryee, Martin J.;Joung, J. Keith
通讯作者:
Joung, J. Keith
影响因子:
64.5
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Zetsche B;Gootenberg JS;Abudayyeh OO;Slaymaker IM;Makarova KS;Essletzbichler P;Volz SE;Joung J;van der Oost J;Regev A;Koonin EV;Zhang F
通讯作者:
Zhang F
影响因子:
46.9
作者:
Hendel A;Bak RO;Clark JT;Kennedy AB;Ryan DE;Roy S;Steinfeld I;Lunstad BD;Kaiser RJ;Wilkens AB;Bacchetta R;Tsalenko A;Dellinger D;Bruhn L;Porteus MH
通讯作者:
Porteus MH
影响因子:
56.9
作者:
Jiang, Fuguo;Zhou, Kaihong;Doudna, Jennifer A.
通讯作者:
Doudna, Jennifer A.