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Related Experiment Videos

Can laboratory reference strains mirror "real-world" pathogenesis?

C A Fux1, M Shirtliff, P Stoodley

  • 1Center for Biofilm Engineering, Montana State University, 366 EPS Building - P.O. Box 173980, Bozeman, MT 59717, USA. christophf@erc.montana.edu

Trends in Microbiology
|February 1, 2005
PubMed
Summary
This summary is machine-generated.

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Laboratory bacterial strains may lose key disease-causing traits due to decades of adaptation to in vitro conditions. Studying bacterial pathogenesis requires considering genomic differences between lab strains and clinical isolates.

Area of Science:

  • Microbiology
  • Genomics
  • Pathogenesis Research

Background:

  • Laboratory-adapted bacterial strains, maintained through decades of sub-culturing, may exhibit significant genomic alterations.
  • These genomic changes can lead to the loss of critical pathophysiological characteristics essential for studying real-world infections.
  • The divergence between in vitro-evolved strains and in vivo pathogens poses a challenge for accurate disease modeling.

Purpose of the Study:

  • To review genomic differences between laboratory reference strains and low-passage clinical isolates of bacteria.
  • To assess the adequacy of current laboratory strains for studying bacterial pathogenesis.
  • To propose solutions for overcoming limitations in bacterial strain representation for omics studies.

Main Methods:

Related Experiment Videos

  • Review of existing literature on bacterial genome plasticity and adaptation to laboratory conditions.
  • Comparison of genomic data between long-term laboratory strains and recent clinical isolates.
  • Discussion of implications for DNA microarray and proteomic analyses.

    • Main Results:

    • Bacteria demonstrate rapid adaptation to in vitro environments, leading to genomic divergence.
    • Significant genomic differences exist between laboratory reference strains and their corresponding clinical counterparts.
    • No single bacterial strain appears capable of fully representing its species' pathogenic potential.

    Conclusions:

    • Laboratory strains may not accurately reflect the characteristics of bacteria causing infections in natural settings.
    • The use of species-specific virtual supragenomes, created by summing individual genomes, could be a viable approach for omics studies.
    • Future research should focus on utilizing diverse and representative bacterial strains or computational approaches to model bacterial pathogenesis.