Research Article

Neutrophils Release Metalloproteinases during Adhesion in the Presence of Insulin, but Cathepsin G in the Presence of Glucagon

Table 2

List of proteins secreted by neutrophils in adherence to fibronectin in the presence of hormones.

Protein namePeptides matched/totalCoverage, %MOWSE score
ControlInsulinE2Glucagon

MMP-9_HUMANMMP-9+18/8525240
MMP-8_HUMANMMP-815/8531240
CATG_HUMANCath. G15/774075
PERM_HUMAN+MPO17/8521119
TRFL_HUMAN+LF++29/8543240
ALBU_HUMAN+Albumin15/2824130
NGAL_HUMAN+NGAL+7/1542105
LYSC_HUMAN+Lysozyme+3198
S10A9_HUMAN+S100-A9++9/1948147
S10A8_HUMAN+S100-A8+5/304484

Neutrophils were attached to fibronectin for 20 minutes under control conditions (marked +), or in the presence of 0.1 μM insulin, 0.1 μM E2, or 0.1 μg glucagon. Mass spectrometric analysis data were taken from experiments with insulin. Analogous proteins that were identified in control experiments or in experiments with E2 or glucagon are marked (+). Mass spectrometric data for cathepsin G are taken from experiments with glucagon, and those for albumin and S100A8 from experiments with E2. Proteins were separated by SDS-PAGE and identified by mass spectrometric analysis. Protein was identified by MSMS analysis. Proteins identified in two or three analogous experiments were included in the list.