COMPOSITIONS AND METHODS FOR LOADING EXTRACELLULAR VESICLES WITH CHEMICAL AND BIOLOGICAL AGENTS/MOLECULES
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United States of America Patent
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Issued Date -
Nov 24, 2022
app pub date -
Oct 30, 2020
filing date -
Oct 30, 2020
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Abstract
Provided are RNA polynucleotide sequences referred to as “EXO-Codes.” The RNA polynucleotides comprise one or more nucleotide sequences that facilitate preferential enrichment of secreted membranous vesicles that contain the EXO-Codes. Nucleotide motifs that contribute to these properties of the EXO-Codes are described. Modified eukaryotic cells comprising EXO-Codes are provided, and include lymphocytes such as T cells. EXO-Codes may comprise a cargo that provides a prophylactic or therapeutic effect. Exosome preparations comprising the EXO-codes are provided. Pharmaceutical compositions comprising EXO-Codes, expression vectors encoding them, and methods of using the pharmaceutical formulations are provided. The pharmaceutical compositions may comprise the EXO-Codes within membranous structures, such as exosomes. Cells that express or otherwise include the EXO-Codes are included, as are method for separating membranous structures that contain the EXO-codes from the cells.
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