Abstract:
:Protein expression changes induced in thioglycolate-elicited peritoneal murine macrophages (M Phi) by infection with type III Group B Streptococcus (GBS) are described. Proteins from control M Phi and M Phi incubated 2 h with live or heat-inactivated GBS were separated by 2-DE. Proteins whose expression was significantly different in infected M Phi, as compared with control cells, were identified by MS/MS analysis. Changes in the expression level of proteins involved in both positive and negative modulation of phagocytic functions, stress response and cell death were induced in M Phi by GBS infection. In particular, expression of enzymes playing a key role in production of reactive oxygen species was lowered in GBS-infected M Phi. Significant alterations in the expression of some metabolic enzymes were also observed, most of the glycolytic and of the pentose-cycle enzymes being down-regulated in M Phi infected with live GBS. Finally, evidence was obtained that GBS infection affects the expression of enzymes or enzyme subunits involved in ATP synthesis and in adenine nucleotides interconversion processes.
journal_name
Proteomicsjournal_title
Proteomicsauthors
Susta F,Chiasserini D,Fettucciari K,Orvietani PL,Quotadamo F,Noce R,Bartoli A,Marconi P,Corazzi L,Binaglia Ldoi
10.1002/pmic.200900642subject
Has Abstractpub_date
2010-06-01 00:00:00pages
2099-112issue
11eissn
1615-9853issn
1615-9861journal_volume
10pub_type
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