Research Article

Secretion of S100A8, S100A9, and S100A12 by Neutrophils Involves Reactive Oxygen Species and Potassium Efflux

Table 1

Proteomic analysis of proteins secreted by neutrophils.

Accession numberNameNumber of peptidesMSU/fMLP valueFullerenes/fMLP value

NETosis-associated proteins
P04040Catalase262.461,123677
P16401Histone H1.5 31,0200580,9734320,7454880,050647
Q99880Histone H2B type 1-L 30,513840,6779150,3863070,237565

Granule’s antimicrobial proteins and enzymes
P14780Metalloproteinase-9 271,6325320,2857460,7570330,475546
P05164-3Myeloperoxidase 464,5443490,9344310,071378
P08246Neutrophil elastase 84,5329020,0010091,1513820,1147
P02788Lactoferroxin-C 705,7132080,0147681,4895470,117136
O75594Peptidoglycan recognition protein 1 63,007640,000350,8923490,189002

Cytoplasmic/intracellular proteins
P07195Lactate dehydrogenase B chain 31,5632570,2742561,3241160,095393
P04083Annexin A1 61,1996720,3077770,6951020,001041
P12429Annexin A3 31,9179710,0386120,9740260,701223
P26447S100A431,8851710,0337891,1143860,027142
P31949S100A1121,9260230,1597431,0633380,363006
P35579Myosin-9451,2763480,0970591,114768
Q53GK6Beta actin variant121,6493480,2353321,099360,612781

Calgranulins
P05109S100A8155,7067292,0082160,001211
P06702S100A9175,7753991,9828340,000234
P80511S100A1272,4260180,0421561,2935810,001423

Number of peptides identified by isobaric tags for relative and absolute quantitation.
Ratio of the different proteins in supernatants from neutrophils stimulated with MSU crystals over neutrophils stimulated with fMLP (which does not induce secretion of calgranulins).
value for the identification of the peptides.
Ratio of the different proteins in supernatants from neutrophils stimulated with fullerenes over neutrophils stimulated with fMLP (which does not induce secretion of calgranulins).