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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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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
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Related Experiment Video

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Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases
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Harnessing CRISPR Effectors for Infectious Disease Diagnostics.

Roby P Bhattacharyya1,2, Sri Gowtham Thakku1,3, Deborah T Hung1,4,5

  • 1Infectious Disease and Microbiome Program , Broad Institute of Harvard and MIT , 415 Main Street , Cambridge , Massachusetts 02142 , United States.

ACS Infectious Diseases
|August 17, 2018
PubMed
Summary
This summary is machine-generated.

New clustered regularly interspaced short palindromic repeats (CRISPR) methods offer sensitive and sequence-specific pathogen identification. These field-deployable diagnostic tools leverage CRISPR effectors for nucleic acid detection, potentially transforming infectious disease diagnostics.

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Area of Science:

  • Molecular biology
  • Biotechnology
  • Infectious disease diagnostics

Background:

  • Nucleic acid detection is crucial for pathogen identification but faces challenges like cost, variable sensitivity/specificity, and infrastructure needs.
  • Existing methods often require complex laboratory setups, limiting their application in resource-limited or field settings.

Purpose of the Study:

  • To introduce and evaluate novel CRISPR-based methods for pathogen identification.
  • To develop sensitive, sequence-specific, and field-deployable nucleic acid detection techniques.

Main Methods:

  • Utilizing the in vitro properties of clustered regularly interspaced short palindromic repeats (CRISPR) effectors as intrinsic amplifiers.
  • Coupling CRISPR effectors with various reporters and integrating them with isothermal amplification methods.
  • Developing multiple field-deployable formats for pathogen identification.

Main Results:

  • Demonstrated sensitive and sequence-specific pathogen identification using the novel CRISPR-based approaches.
  • Showcased the potential for field-deployable applications of these diagnostic methods.
  • Highlighted the modularity and adaptability of the CRISPR-based detection system.

Conclusions:

  • CRISPR-based nucleic acid detection methods offer a promising alternative to traditional techniques.
  • These methods have the potential to significantly advance pathogen identification and infectious disease diagnostics, especially in diverse settings.
  • Further development of these nascent CRISPR-based technologies could revolutionize diagnostics.