Silkworm larvae plasma (SLP) assay for detection of bacteria: False positives secondary to inflammation in vivo

J Microbiol Methods. 2017 Jan:132:9-13. doi: 10.1016/j.mimet.2016.11.009. Epub 2016 Nov 10.

Abstract

The silkworm larvae plasma (SLP) assay has been developed as a means to detect bacterial peptidoglycan as a surrogate for live bacteria. Here, we present results that indicate that generation of melanin by this assay is not fully reliable as a surrogate marker for bacterial count.

Keywords: Inflammation; Lactobacillus; Pattern recognition receptors.

Publication types

  • Research Support, N.I.H., Intramural

MeSH terms

  • Animals
  • Bacteria / isolation & purification*
  • Bacterial Load
  • Biological Assay*
  • Biomarkers / blood
  • Bombyx / metabolism*
  • DNA, Bacterial / isolation & purification
  • Female
  • Inflammation / blood*
  • Inflammation / microbiology
  • Lactobacillus plantarum / isolation & purification
  • Larva / metabolism
  • Lung / microbiology
  • Melanins / blood
  • Mice
  • Mice, Inbred C57BL
  • Peptidoglycan / blood
  • Receptors, Pattern Recognition / agonists
  • Receptors, Pattern Recognition / metabolism
  • Sensitivity and Specificity
  • Toll-Like Receptor 2 / genetics
  • Toll-Like Receptor 2 / metabolism

Substances

  • Biomarkers
  • DNA, Bacterial
  • Melanins
  • Peptidoglycan
  • Receptors, Pattern Recognition
  • Tlr2 protein, mouse
  • Toll-Like Receptor 2