The role of Ca 2+ and Ca 2+ -activated phospholipid-dependent protein kinase in degranulation of human neutrophils

Dongchon Kang, Hiroko Tsuda, Koichiro Takeshige, Yosaburo Shibata, Shigeki Minakami

研究成果: ジャーナルへの寄稿記事

11 引用 (Scopus)

抄録

The degranulation reactions of human neutrophils induced by 1-oleoyi-2-acetyiglycerol (OAG), phorbol 12-myristate 13-acetate (PMA), and calcium ionophore A23187 or their combinations, were studied. OAG in the absence of the Ca 2+ -ionophore A23187 stimulated the releases of both lysozyme and lactoferrin, constituents of the specific granules, but did not stimulate the release of β-glucuronidase, an enzyme of the azurophil granules. Electron microscopy revealed a selective decrease in the numbers of the specific granules in this case. The combined effects of A23187 at a concentration higher than 0.1 μM and OAG were essentially additive. W-7, known to be an inhibitor of both Ca 2+ -activated phospholipid-dependent protein kinase (C-kinase) and calmodulin, inhibited the degranulation induced by OAG or PMA, while it inhibited the reaction induced by A23187 less markedly. The release of lysozyme reached a plateau at about 0.1 μM A23187 and increased again at higher concentrations of A23187. The observations suggest that degranulation can be induced by the activation of the C-kinase, and the degranulation by A23187 at low concentrations may be due to the activation of the C-kinase; the effects of A23187 at high concentrations, however, could not be explained only in terms of the activation of the C-kinase.

元の言語英語
ページ(範囲)1699-1706
ページ数8
ジャーナルJournal of biochemistry
98
発行部数6
DOI
出版物ステータス出版済み - 1 1 1985

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Calcimycin
Protein Kinases
Phospholipids
Neutrophils
Phosphotransferases
Chemical activation
Muramidase
Lactoferrin
Calcium Ionophores
Glucuronidase
Ionophores
Calmodulin
Electron microscopy
Acetates
Enzymes
Calcium-Calmodulin-Dependent Protein Kinases
Electron Microscopy
phorbol-12-myristate

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology

これを引用

The role of Ca 2+ and Ca 2+ -activated phospholipid-dependent protein kinase in degranulation of human neutrophils . / Kang, Dongchon; Tsuda, Hiroko; Takeshige, Koichiro; Shibata, Yosaburo; Minakami, Shigeki.

:: Journal of biochemistry, 巻 98, 番号 6, 01.01.1985, p. 1699-1706.

研究成果: ジャーナルへの寄稿記事

Kang, Dongchon ; Tsuda, Hiroko ; Takeshige, Koichiro ; Shibata, Yosaburo ; Minakami, Shigeki. / The role of Ca 2+ and Ca 2+ -activated phospholipid-dependent protein kinase in degranulation of human neutrophils :: Journal of biochemistry. 1985 ; 巻 98, 番号 6. pp. 1699-1706.
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