Suggested Resources (0.00 / 0 votes) Rate this definition: ROCA. What does ROCA stand for?-- Explore the various meanings for the ROCA acronym on the Abbreviations.com website.
Neutrophil elastase (EC 3.4.21.37, leukocyte elastase, ELANE, ELA2, elastase 2, neutrophil, elaszym, serine elastase) is a serine proteinase in the same family as chymotrypsin and has broad substrate specificity. Secreted by neutrophils and macrophages during inflammation, it destroys bacteria and host tissue.eutrophil elastase (EC 3.4.21.37, leukocyte elastase, ELANE, ELA2, elastase 2, neutrophil, elaszym, serine elastase) is a serine proteinase in the same family as chymotrypsin and has broad substrate specificity. Secreted by neutrophils and macrophages during inflammation, it destroys bacteria and host tissue.
Neutrophils are normally found in the bloodstream and are the most abundant type of phagocyte, constituting 50% to 60% of the total circulating white blood cells. One litre of human blood contains about five billion (5x109) neutrophils, which are about 12â15 micrometers in diameter.