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Methodologies for in vitro nucleic acid amplification and their applications.

T R Gingeras1, D D Richman, D Y Kwoh

  • 1Salk Institute Biotechnology/Industrial Associates, Inc., La Jolla, CA 92037.

Veterinary Microbiology
|September 1, 1990
PubMed
Summary

Nucleic acid amplification methods like polymerase chain reaction (PCR) and transcription-based amplification systems (TAS) enhance detection of pathogens. These techniques are crucial for studying infectious diseases, including human immunodeficiency virus type 1 (HIV-1).

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Area of Science:

  • Molecular Biology
  • Virology
  • Infectious Diseases

Background:

  • Traditional nucleic acid hybridization assays identify pathogens by detecting their genetic material (DNA or RNA).
  • Low copy numbers of genetic material from certain viral pathogens necessitate more sensitive detection methods.
  • In vitro nucleic acid amplification techniques have been developed to increase the detectability of pathogenic genetic elements.

Purpose of the Study:

  • To review the characteristics of nucleic acid amplification methods.
  • To describe the applications of these amplification methods.
  • To highlight their specific use in the study of human immunodeficiency virus type 1 (HIV-1).

Main Methods:

  • Discussion of polymerase chain reaction (PCR) as an amplification technique.

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  • Description of transcription-based amplification systems (TAS) as another amplification method.
  • Review of applications in genetic and infectious disease research.

    • Main Results:

    • Amplification methods significantly increase the sensitivity of detecting low-copy genetic material from pathogens.
    • Both PCR and TAS have proven effective in various research settings.
    • These methods are valuable tools for understanding viral pathogens and infectious diseases.

    Conclusions:

    • Nucleic acid amplification methods, including PCR and TAS, are essential for pathogen detection and characterization.
    • These techniques offer significant advantages over traditional hybridization assays, especially for viruses with low genetic material.
    • The review underscores the importance of amplification methods in advancing the study of infectious agents like HIV-1.