CRISPR/Cas9-Derived Mutations Both Inhibit HIV-1 Replication and Accelerate Viral Escape
Subgenomic mRNA
Indel
Guide RNA
DOI:
10.1016/j.celrep.2016.03.042
Publication Date:
2016-04-09T21:33:07Z
AUTHORS (8)
ABSTRACT
Cas9 cleaves specific DNA sequences with the assistance of a programmable single guide RNA (sgRNA). Repairing this broken by cell's error-prone non-homologous end joining (NHEJ) machinery leads to insertions and deletions (indels) that often impair function. Using HIV-1, we have now demonstrated many these indels are indeed lethal for virus, but others lead emergence replication competent viruses resistant Cas9/sgRNA. This unexpected contribution development viral resistance is facilitated some not deleterious replication, refractory recognition same sgRNA as result changing target sequences. observation illustrates two opposite outcomes Cas9/sgRNA action, i.e., inactivation HIV-1 acceleration escape, thereby potentially limiting use in therapy.
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