Inhibition of active oxygen generation in guinea-pig neutrophils by biscoclaurine alkaloids

Matsuno Tsuyoshi, Orita Kunzoorita, Edashige Keisuke, Hirotsugu Kobuchi, Sato Eisuke F., Inouye Bunji, Inoue Masayasu, Utsuml Kozo

Research output: Contribution to journalArticle

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Abstract

Effect of biscoclaurine alkaloids, such as cepharanthine, on active oxygen production of neutrophils was investigated. Cepharanthine inhibited both Superoxide generation and luminol-dependent chemiluminescence (CL) induced by either formylmethionyl-leucyl-phenylalanine, opsonized zymosan, arachidonic acid or by phorbol myristate acetate. Ca2+- and phospholipid-dependent protein kinase (PKC) activity and the phosphorylation of cytoplasmic protein including 47 kDa proteins of neutrophils were also inhibited by cepharanthine; dose dependent inhibition of CL was quite similar to that of PKC. Among various biscoclaurines tested, the inhibitory effect of cepharanthine, tetrandrine and isotetrandrine was strong, but that of berbamine and cycreanine was weak; the inhibitory action of the former on lipid peroxidation and platelet aggregation were also stronger than those of the latter. These and other observations indicated that these alkaloids inhibited the active oxygen generation by way of stabilizing plasma membrane and inhibiting PKC and NADPH oxidase activation.

Original languageEnglish
Pages (from-to)1255-1259
Number of pages5
JournalBiochemical Pharmacology
Volume39
Issue number7
DOIs
Publication statusPublished - Apr 1 1990
Externally publishedYes

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tetrandrine
Alkaloids
Reactive Oxygen Species
Guinea Pigs
Neutrophils
Chemiluminescence
Luminescence
N-Formylmethionine Leucyl-Phenylalanine
Luminol
Phosphorylation
Zymosan
NADPH Oxidase
Tetradecanoylphorbol Acetate
Cell membranes
Platelets
Platelet Aggregation
Arachidonic Acid
Superoxides
Protein Kinases
Lipid Peroxidation

ASJC Scopus subject areas

  • Pharmacology

Cite this

Inhibition of active oxygen generation in guinea-pig neutrophils by biscoclaurine alkaloids. / Tsuyoshi, Matsuno; Kunzoorita, Orita; Keisuke, Edashige; Kobuchi, Hirotsugu; Eisuke F., Sato; Bunji, Inouye; Masayasu, Inoue; Kozo, Utsuml.

In: Biochemical Pharmacology, Vol. 39, No. 7, 01.04.1990, p. 1255-1259.

Research output: Contribution to journalArticle

Tsuyoshi, M, Kunzoorita, O, Keisuke, E, Kobuchi, H, Eisuke F., S, Bunji, I, Masayasu, I & Kozo, U 1990, 'Inhibition of active oxygen generation in guinea-pig neutrophils by biscoclaurine alkaloids', Biochemical Pharmacology, vol. 39, no. 7, pp. 1255-1259. https://doi.org/10.1016/0006-2952(90)90271-L
Tsuyoshi, Matsuno ; Kunzoorita, Orita ; Keisuke, Edashige ; Kobuchi, Hirotsugu ; Eisuke F., Sato ; Bunji, Inouye ; Masayasu, Inoue ; Kozo, Utsuml. / Inhibition of active oxygen generation in guinea-pig neutrophils by biscoclaurine alkaloids. In: Biochemical Pharmacology. 1990 ; Vol. 39, No. 7. pp. 1255-1259.
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