当前位置： SCI文献检索 > INFLAMMATION期刊下所有文献 > Effect of leukocyte hydrolases on bacteria. X. The role played by leukocyte factors, cationic polyelectrolytes, and by membrane-damaging agents in the lysis of Staphylococcus aureus: relation to chronic inflammatory processes.

Effect of leukocyte hydrolases on bacteria. X. The role played by leukocyte factors, cationic polyelectrolytes, and by membrane-damaging agents in the lysis of Staphylococcus aureus: relation to chronic inflammatory processes.

Abstract：

:A heat-stable factor present in extracts of human blood leukocytes is capable of lysing young Staphylococcus aureus at pH 5.0. Lysis is characterized by breakdown of cell-wall components as judged by electron microscopic and biochemical analysis. The leukocyte extracts can be replaced by a variety of agents known to injure cell membranes, e.g., leukocyte cationic protein histone, polymyxin B, colimycin, phospholipase A, and lysolecithin. The mechanisms by which all these agents bring about the degradation of the staphylococcal walls was studied. By using 14C-labeled cell walls devoid of cytoplasmic structures, it was demonstrated that none of the above-mentioned agents had a direct lytic effect on purified cell walls. On the other hand, when any of these agents first interacted with intact staphylococci, a factor (presumably an autolysin) was generated that directly lysed the cell walls. Lysis of cell walls in the presence of intact staphylococci used as a source of autolysin was strongly inhibited by a variety of anionic polyelectrolytes such as heparine and liquoid. The possible role played by bacterial autolysins in the generation of microbial cell-wall components capable of triggering chronic inflammation is discussed.

journal_name

Inflammation

journal_title

Inflammation

authors

Lahav M,Ginsburg I

doi

10.1007/BF00918678

subject

Has Abstract

pub_date

1977-06-01 00:00:00

pages

165-77

issue

2

eissn

0360-3997

issn

1573-2576

journal_volume

2

pub_type

杂志文章

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