Comparative proteomic analysis of differentially expressed proteins in the Bombyx mori fat body during the microsporidia Nosema bombycis infection

J Invertebr Pathol. 2017 Oct;149:36-43. doi: 10.1016/j.jip.2017.06.009. Epub 2017 Jun 28.


Nosema bombycis is an obligate intracellular parasite, which can cause pébrine disease. To investigate the effects of N. bombycis infection, 5th-instar silkworms were challenged with N. bombycis isolate CQ1, and two-dimensional gel electrophoresis analysis was performed to analyze the differentially expressed proteins in infected and uninfected silkworm fat bodies 1, 2, 4, 6 and 8days post-infection (dpi). 46 differentially expressed proteins were identified at the 5 time points using MALDI-TOF/TOF MS. The changed proteins mainly involved in immune response, energy metabolism, and molecular synthesis. Overall, the identified proteins may provide important insights into the mechanisms of the silkworm response to N. bombycis infection.

Keywords: Host responses; Nosema bombycis; Proteome; Silkworm.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Bombyx / metabolism*
  • Bombyx / microbiology*
  • Fat Body / metabolism*
  • Microsporidiosis / metabolism*
  • Nosema / physiology*
  • Proteomics