title: Comparative Subcellular Proteomics Analysis of Susceptible and Near-isogenic Resistant Bombyx mori (Lepidoptera) Larval Midgut Response to BmNPV infection.
abstract: The molecular mechanism of silkworm resistance to Bombyx mori nucleopolyhedrovirus (BmNPV) infection remains largely unclear. Accumulating evidence suggests that subcellular fractionation combined with proteomics is an ideal technique to analyse host antiviral mechanisms. To clarify the anti-BmNPV mechanism of the silkworm, the near-isogenic line BC9 (resistant strain) and the recurrent parent P50 (susceptible strain) were used in a comparative subcellular proteomics study. Two-dimensional gel electrophoresis (2-DE) combined with mass spectrometry (MS) was conducted on proteins extracted from the cytosol, mitochondria, and microsomes of BmNPV-infected and control larval midguts. A total of 87 proteins were successfully identified from the three subcellular fractions. These proteins were primarily involved in energy metabolism, protein metabolism, signalling pathways, disease, and transport. In particular, disease-relevant proteins were especially changed in microsomes. After infection with BmNPV, differentially expressed proteins (DEPs) primarily appeared in the cytosolic and microsomal fractions, which indicated that these two fractions might play a more important role in the response to BmNPV infection. After removing genetic background and individual immune stress response proteins, 16 proteins were identified as potentially involved in repressing BmNPV infection. Of these proteins, the differential expression patterns of 8 proteins according to reverse transcription quantitative PCR (RT-qPCR) analyses were consistent with the 2-DE results.
authors.affiliation: School of Life Sciences, Anhui Agricultural University, Hefei, 230036, People's Republic of China.
authors.forename: Xue-Yang
authors.initials: XY
authors.lastname: Wang
authors.affiliation: School of Life Sciences, Anhui Agricultural University, Hefei, 230036, People's Republic of China.
authors.forename: Hai-Zhong
authors.initials: HZ
authors.lastname: Yu
authors.affiliation: School of Life Sciences, Anhui Agricultural University, Hefei, 230036, People's Republic of China.
authors.forename: Jia-Ping
authors.initials: JP
authors.lastname: Xu
authors.affiliation: School of Life Sciences, Anhui Agricultural University, Hefei, 230036, People's Republic of China.
authors.forename: Shang-Zhi
authors.initials: SZ
authors.lastname: Zhang
authors.affiliation: School of Life Sciences, Anhui Agricultural University, Hefei, 230036, People's Republic of China.
authors.forename: Dong
authors.initials: D
authors.lastname: Yu
authors.affiliation: Institute of Sericulture, Anhui Academy of Agricultural Sciences, Hefei, 230061, People's Republic of China.
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Liu
authors.affiliation: School of Life Sciences, Chongqing Normal University, Hefei, 401331, People's Republic of China.
authors.forename: Lin-Ling
authors.initials: LL
authors.lastname: Wang
mesh_terms: D000818:Animals; D012831:Bombyx / Q000378:metabolism* / Q000821:virology*; D041981:Gastrointestinal Tract / Q000378:metabolism* / Q000821:virology*; D015967:Gene Expression Regulation, Viral; D054884:Host-Pathogen Interactions; D019476:Insect Proteins / Q000378:metabolism; D007814:Larva / Q000378:metabolism / Q000821:virology; D024101:Mitochondrial Proteins / Q000378:metabolism; D017924:Nucleopolyhedroviruses; D060066:Protein Interaction Maps; D040901:Proteomics
chemical_list: D019476:Insect Proteins; D024101:Mitochondrial Proteins