Cited by 461CRISPR and Genetic EngineeringRNA regulation and diseaseRNA Interference and Gene Delivery

Latest Developed Strategies to Minimize the Off-Target Effects in CRISPR-Cas-Mediated Genome Editing

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Naeem, Muhammad, Majeed, Saman, Hoque, Mubasher Zahir, Ahmad, Irshad·2020·Cells

Abstract

Gene editing that makes target gene modification in the genome by deletion or addition has revolutionized the era of biomedicine. Clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 emerged as a substantial tool due to its simplicity in use, less cost and extraordinary efficiency than the conventional gene-editing tools, including zinc finger nucleases (ZFNs) and Transcription activator-like effector nucleases (TALENs). However, potential off-target activities are crucial shortcomings in the CRISPR system. Numerous types of approaches have been developed to reduce off-target effects. Here, we review several latest approaches to reduce the off-target effects, including biased or unbiased off-target detection, cytosine or adenine base editors, prime editing, dCas9, Cas9 paired nickase, ribonucleoprotein (RNP) delivery and truncated gRNAs. This review article provides extensive information to cautiously interpret off-target effects to assist the basic and clinical applications in biomedicine.

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  • In silico tools are useful to search for potential off-target sites in the whole genome and calculate the likelihood of an off-target editing.

    “In this scenario, in silico tools are useful to search for potential off-target sites in the whole genome and calculate the likelihood of an off-target editing (Naeem et al., 2020).”

    From Off-target effects in CRISPR/Cas9 gene editing (2023) · cites this paper as Naeem et al., 2020

  • Unwanted mutations may cause a loss of gene function, can be oncogenic or present danger signals that could induce an immune response.

    “These unwanted mutations may cause a loss of gene function, can be oncogenic or present danger signals that could induce an immune response [109].”

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Authors
Naeem, M., Majeed, S., Hoque, M. Z., & Ahmad, I.
Affiliations
  • King Fahd University of Petroleum and Minerals (SA)
  • Texas Tech University (US)
Corresponding author
Ahmad, Irshad
Venue
Cells
Publisher
MDPI AG
Published
2020-07-02
Volume
9
Issue
7
Pages
1608
ISSN
2073-4409 (ISSN-L)
OpenAlex
W3038956601
Cited by
457
References
156
Citations by year
2026: 33 · 2025: 73 · 2024: 93 · 2023: 89 · 2022: 89 · 2021: 73 · 2020: 7
FWCI
6.17
Type
journal article
Language
en
Open access
Locations
  • Cells (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
King Fahd University of Petroleum and Minerals (31261)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
CRISPR/Cas9, off-target effects, genome editing, off-target detection, base editors, prime editing, dCas9, Cas9 nickase, ribonucleoprotein delivery, zinc finger nucleases, TALEN
MeSH terms
Gene Editing, CRISPR-Associated Protein 9, RNA, Guide, CRISPR-Cas Systems, Animals, DNA Repair, Humans, Ribonucleoproteins, RNA, Guide, Kinetoplastida, CRISPR-Cas Systems

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