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Related Concept Videos

CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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CRISPR01:59

CRISPR

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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Updated: Oct 16, 2025

Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases
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Recent Improvements in CRISPR-Based Amplification-Free Pathogen Detection.

Jian Zhang1,2, Hailong Lv1,3, Linxian Li1

  • 1Department of Clinical Laboratory, Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China.

Frontiers in Microbiology
|October 18, 2021
PubMed
Summary
This summary is machine-generated.

CRISPR-based diagnostics offer sensitive and specific pathogen detection. Amplification-free CRISPR systems show promise for direct nucleic acid detection, potentially revolutionizing molecular diagnostics.

Keywords:
CRISPR diagnosticsCas12Cas13amplification-freepathogen detectiontrans-cleavage activity

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Area of Science:

  • Molecular diagnostics
  • Biotechnology
  • Infectious disease research

Background:

  • Molecular diagnostic (MDx) methods are crucial for accurate pathogen identification.
  • Traditional techniques like PCR have limitations.
  • CRISPR-based diagnostics, utilizing Cas12/Cas13 trans-cleavage, offer enhanced sensitivity and specificity.

Purpose of the Study:

  • To review recent advancements in amplification-free CRISPR-based diagnostic systems (CRISPR-Dx).
  • To explore the potential impact of these systems on pathogen diagnosis.
  • To discuss current challenges in sensitivity and cost.

Main Methods:

  • Review of recent research on CRISPR-Dx systems.
  • Focus on Cas12 and Cas13 trans-cleavage activities.
  • Analysis of amplification-free detection strategies.

Main Results:

  • CRISPR-Dx systems demonstrate high sensitivity and specificity for pathogen detection.
  • Improvements in CRISPR trans-cleavage efficiency and signal detection are enabling amplification-free approaches.
  • Direct detection of target nucleic acids without preamplification is becoming feasible.

Conclusions:

  • Amplification-free CRISPR-Dx systems hold significant potential for pathogen diagnosis.
  • Further research is needed to overcome challenges in detection sensitivity and cost-effectiveness.
  • These technologies could transform molecular diagnostics beyond pathogen detection.