Figure 1.
Overview of the role of genome/gene-editing platforms. Genome-editing nucleases (TALEN, ZFN, and CRISPR-Cas9) induce DSBs within the nuclear DNA at specific sites, which can subsequently be repaired using nonhomologous end-joining (NHEJ) or homology-directed repair (HDR) pathways that assist in targeted modification of the DNA. In contrast, gene-editing RNA interference strategies (using shRNA or small interfering RNA [siRNA]) bind to complementary messenger RNA sequences within the cytoplasm and cause its degradation. mRNA, messenger RNA; RISC, RNA-induced silencing complex. Created with www.BioRender.com.