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Off-Target activity as a Translational Barrier in Programmable Gene-Editing Strategies for Nontuberculous
Daniel Raj D1, Anand Kumar Maurya2, Jitendra Singh3
1MSc, Medical Laboratory Technology (Microbiology), All India Institute of Medical Sciences (AIIMS), Bhopal, India.
Maedica
|July 8, 2026
Summary
Clustered regularly interspaced short palindromic repeats (CRISPR) technologies show promise for nontuberculous mycobacteria (NTM) infections. Strategies to enhance specificity and safety are crucial for clinical application, addressing off-target effects in NTM.
Area of Science:
- Microbiology
- Genetics
- Biotechnology
Background:
- Nontuberculous mycobacteria (NTM) infections necessitate prolonged treatments and are linked to increasing antimicrobial resistance, especially in Mycobacterium abscessus.
- CRISPR-based technologies offer potential for precise diagnostics, functional genomics, and therapeutic development against NTM.
Purpose of the Study:
- To review the clinical and translational implications of off-target activity in CRISPR-based approaches for NTM.
- To discuss current strategies for enhancing specificity and safety in CRISPR-NTM applications.
Main Methods:
- A literature review of CRISPR-Cas systems (Cas9, Cas12a, CRISPR interference) applied in NTM research.
- Focus on off-target mechanisms, NTM-specific genomic challenges, computational predictions, and detection methods.
Main Results:
- High GC content, repetitive gene families, mismatch tolerance, and unique DNA repair in NTM contribute to CRISPR off-target effects.
- Emerging high-fidelity nucleases, guide RNA optimization, and AI-assisted platforms show potential for improved specificity and safety.
Conclusions:
- Advances in nuclease engineering, computational modeling, delivery systems, and validation are key to improving therapeutic precision and diagnostic reliability for NTM.
- Interdisciplinary innovation is essential for the clinical integration of CRISPR-based antimycobacterial strategies.
