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Journal Article
Review
Recent Advances in CRISPR/Cas9-Mediated Genome Editing in Leishmania Strains.
Acta Parasitologica 2023 December 22
BACKGROUND: Genome manipulation of Leishmania species and the creation of modified strains are widely employed strategies for various purposes, including gene function studies, the development of live attenuated vaccines, and the engineering of host cells for protein production.
OBJECTIVE: Despite the introduction of novel manipulation approaches like CRISPR/Cas9 technology with significant advancements in recent years, the development of a reliable protocol for efficiently and precisely altering the genes of Leishmania strains remains a challenging endeavor. Following the successful adaptation of the CRISPR/Cas9 system for higher eukaryotic cells, several research groups have endeavored to apply this system to manipulate the genome of Leishmania.
RESULTS: Despite the substantial differences between Leishmania and higher eukaryotes, the CRISPR/Cas9 system has been effectively tested and applied in Leishmania. CONCLUSION: This comprehensive review summarizes all the CRISPR/Cas9 systems that have been employed in Leishmania, providing details on their methods and the expression systems for Cas9 and gRNA. The review also explores the various applications of the CRISPR system in Leishmania, including the deletion of multicopy gene families, the development of the Leishmania vaccine, complete gene deletions, investigations into chromosomal translocations, protein tagging, gene replacement, large-scale gene knockout, genome editing through cytosine base replacement, and its innovative use in the detection of Leishmania. In addition, the review offers an up-to-date overview of all double-strand break repair mechanisms in Leishmania.
OBJECTIVE: Despite the introduction of novel manipulation approaches like CRISPR/Cas9 technology with significant advancements in recent years, the development of a reliable protocol for efficiently and precisely altering the genes of Leishmania strains remains a challenging endeavor. Following the successful adaptation of the CRISPR/Cas9 system for higher eukaryotic cells, several research groups have endeavored to apply this system to manipulate the genome of Leishmania.
RESULTS: Despite the substantial differences between Leishmania and higher eukaryotes, the CRISPR/Cas9 system has been effectively tested and applied in Leishmania. CONCLUSION: This comprehensive review summarizes all the CRISPR/Cas9 systems that have been employed in Leishmania, providing details on their methods and the expression systems for Cas9 and gRNA. The review also explores the various applications of the CRISPR system in Leishmania, including the deletion of multicopy gene families, the development of the Leishmania vaccine, complete gene deletions, investigations into chromosomal translocations, protein tagging, gene replacement, large-scale gene knockout, genome editing through cytosine base replacement, and its innovative use in the detection of Leishmania. In addition, the review offers an up-to-date overview of all double-strand break repair mechanisms in Leishmania.
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