EXPRESSION OF HUMAN FOXP3 IN GENE EDITED T CELLS

摘要

Aspects of the invention described herein concern targeting of a FOXP3 cDNA, e.g., full-length human-codon optimized, into a FOXP3 locus or a non-FOXP3 locus so as to provide constitutive or regulated FOXP3 expression in a primary human lymphocyte. The compositions and materials described herein provide specificity for CRISPR/Cas-mediated gene regulation of murine, non-human primates or human FOXP3. Guide RNA sequences are used to target the FOXP3, AAVS1, and other candidate loci for CRISPR/Cas-mediated gene regulation, and gene delivery cassettes for HDR based gene-modification are provided. The alternative compositions described herein can be delivered in the form of Ribonucleoprotein (RNP) and may be used to target human and/or non-human primate FOXP3. Reagents are comprised of novel guide RNA sequences and can generate high frequency of on-target cleavage in combination with a Cas protein and novel gene delivery cassettes including FOXP3 cDNA +/-other cis linked gene products.