Diacylglycerol generation and phosphoinositide turnover in human neutrophils: effects of particulate versus soluble stimuli.
Diacylglycerol generation and phosphoinositide turnover in human neutrophils: effects of particulate versus soluble stimuli.
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人中性粒细胞中二酰甘油的生成和磷酸肌醇周转:颗粒与可溶性刺激的影响。
DOI:
10.1016/0003-9861(89)90116-1
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发表时间:
1989
影响因子:
3.9
通讯作者:
Lambeth,JD
中科院分区:
文献类型:
--
作者:
Burnham,DN;Tyagi,SR;Uhlinger,DJ;Lambeth,JD
Serum-treated, or “opsonized” zymosan (OZ), a particulate material which can be phagocytized by polymorphonuclear leukocytes, activates the superoxide-generating respiratory burst in these cells. The use of dual wavelength spectroscopy in the present studies has allowed accurate continuous monitoring of superoxide generation (cytochromecreduction) upon cellular activation by this turbid material; activation occurs after a short lag period (about 20 s) which is similar to the lag seen after activation with the chemoattractant formyl-methionyl-leucyl-phenylalanine (fMLP). Unlike the fMLP response which terminates after about 90 s, superoxide generation in response to OZ continues beyond 10 min, and is similar in this regard to the response seen with the protein kinase C activator phorbol myristate acetate (PMA). OZ and fMLP, but not PMA, also activate receptor-linked phospholipase C mechanisms as judged by the appearance of inositol trisphosphate (IP3) (as well as other inositol phosphates) and diacylglycerol (DAG), with the latter measured by a mass assay. The appearance of these potential mediators corresponded to the loss of phosphoinositides, in particular phosphatidylinositol 4,5-bisphosphate (PIP2). The magnitude of DAG and inositol sugar generation as well as the breakdown of PIP2was considerably greater using OZ than with fMLP. In addition, while fMLP resulted in a transient increase in IP3and DAG, OZ resulted in a sustained elevation of these molecules. With both agonists, the onset and duration of generation of putative mediators corresponded to the period of generation of O2−, consistent with a role for DAG and/or IP3in the activation of the respiratory burst.
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DOI:
--
发表时间:
1988
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Rider,LG;Dougherty,RW;Niedel,JE
通讯作者:
Niedel,JE
DOI:
10.1016/0006-291x(88)90528-1
发表时间:
1988
影响因子:
3.1
作者:
J. Pai;M. Siegel;R. Egan;M. Billah
通讯作者:
M. Billah
DOI:
10.1016/s0006-291x(86)80395-3
发表时间:
1986
影响因子:
3.1
作者:
Maridonneau-Parini,I;Tauber,AI
通讯作者:
Tauber,AI
影响因子:
20.3
作者:
Pike,MC;Jakoi,L;McPhail,LC;Snyderman,R
通讯作者:
Snyderman,R
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Cox,CC;Dougherty,RW;Ganong,BR;Bell,RM;Niedel,JE;Snyderman,R
通讯作者:
Snyderman,R