CRISPR-Cas9 Labeling of Human Genomic DNA for Telomere Length Measurement
Overview
Executive Statement:
An innovative method for the precise detection and measurement of individual telomere lengths that can be correlated to specific chromosomes.
Description:
This technology provides a method for detecting the length of individual telomeres in genomic DNA using a unique combination of guide RNA, Cas9 nickase, polymerase, and fluorescently labeled nucleotide. The fluorescently labeled motif sequences are used as a barcode to identify the chromosome. This technology can be deployed to detect and map chromosomal haplotypes and previously unknown regions of the human genome.
Market Applications
- Useful in aging research for understanding telomere lengths in healthy humans and their role in diseases such as cancer
- Helpful in studying and understanding individual haplotypes and the human genome
- Telomere biology research
- Biomedical research involving DNA damage and repair
- Drug discovery and development
- Cancer diagnostics and therapy
Key Advantages
- Simultaneously measures individual telomeres in a single reaction
- Identifies corresponding chromosome arms
- Capable of identifying chromosomes with no detectable telomere repeats and previously unknown regions of the genome
- Uses a smaller amount of DNA compared to other methods
- Capable of identifying chromosomal haplotypes
Problems Solved
- Overcomes the limitation of traditional methods that only provide mean telomere length information
- Solves the problem of existing methods being unable to measure telomeres in senescent cells
- Addresses the challenge of measuring critically short telomeres, which are critical for chromosome stability and cell viability
Intellectual Property and Development Status
US Patent Issued - #US11761028B2 - Methods of specifically labeling nucleic acids using CRISPR/Cas9
References
Genes 2023: Single-Molecule Telomere Assay via Optical Mapping (SMTA-OM) Can Potentially Define the ALT Positivity of Cancer
BMC Genomics 2020: Single-molecule analysis of subtelomeres and telomeres in Alternative Lengthening of Telomeres (ALT) cells
Genome Research 2017: High-throughput single-molecule telomere characterization
Commercialization Opportunities