Effects of CIS-19, a novel PAF receptor antagonist, on PAF-induced eosinophil recruitment and enhancement of superoxide anion generation in guinea-pigs

Che Ming Teng, Chen Huang Lin, Han Pin Kuo, Feng Nien Ko, Hisahi Ishii, Tsutomu Ishikawa, Ih Sheng Chen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We examined the effects of a novel plateletactivating factor (PAF) receptor antagonist, CIS-19 [cis-2-(3,4-dimethoxyphenyl)-6-isopropoxy-7-methoxyl-1-(N-methylformamido)-1,2,3,4-tetrahydronaphthalene], on PAF-induced inflammatory cells recruitment into airways and enhancement of superoxide anion (Oinf2sup-) generation from cells retrieved by bronchoalveolar lavage (BAL) in urethane-anesthetized guinea-pigs. Administration of PAF (30 ng/kg, Lv.) produced a selective increase of eosinophils into airways, but no significant increase of the number of macrophages, neutrophils or lymphocytes. CIS-19 (2.5 and 5 mg/kg, Lv.) significantly inhibited the eosinophil recruitment induced by PAF. In vitro, PAF, phorbol 12-myristate 13-acetate (PMA) and N-formyl-methionyl-leucyl-phenylalanine (FMLP) directly stimulated generation of Oinf2sup-from BAL cells in a concentration-dependent manner. CIS-19 (10-7 - 10-4 M) inhibited production of Oinf2sup-induced by PAF (10-7 M) in a concentration-dependent manner with an EC50 value of 0.84 μM, but not induced by PMA (0.5 μg/ml) or FMLP (10-7 M). Administration of PAF (5 ng/kg, i.v.) enhanced markedly PMA (0.5 μg/ml) and FMLP (10-7 M)-induced generation of Oinf2sup-by 80.2% and 51.3%, respectively. The enhancing effect of PAF was maximal in cells harvested 5 min after the addition of PAF and then declined to baseline level at 60 min. These responses were inhibited by administration of CIS-19 (0.5-2.5 mg/kg, i.v.) or BN 52021(5 mg/kg, i.v.). The results indicate that CIS-19 is potent in inhibition of PAF-induced airway inflammatory response and may have therapeutic potential as an anti-inflammatory drugs.

Original languageEnglish
Pages (from-to)529-534
Number of pages6
JournalNaunyn-Schmiedeberg's Archives of Pharmacology
Volume351
Issue number5
DOIs
Publication statusPublished - May 1 1995
Externally publishedYes

Fingerprint

Eosinophils
Superoxides
Guinea Pigs
methionyl-leucyl-phenylalanine
ginkgolide B
Acetates
Bronchoalveolar Lavage
N-Formylmethionine Leucyl-Phenylalanine
Urethane
Neutrophils
Anti-Inflammatory Agents
Macrophages
CIS 19
Lymphocytes
Pharmaceutical Preparations
phorbol-12-myristate
Therapeutics

Keywords

  • Eosinophils
  • Guinea-pigs
  • PAF receptor antagonist
  • Priming
  • Superoxide anion

ASJC Scopus subject areas

  • Pharmacology

Cite this

Effects of CIS-19, a novel PAF receptor antagonist, on PAF-induced eosinophil recruitment and enhancement of superoxide anion generation in guinea-pigs. / Teng, Che Ming; Lin, Chen Huang; Kuo, Han Pin; Ko, Feng Nien; Ishii, Hisahi; Ishikawa, Tsutomu; Chen, Ih Sheng.

In: Naunyn-Schmiedeberg's Archives of Pharmacology, Vol. 351, No. 5, 01.05.1995, p. 529-534.

Research output: Contribution to journalArticle

Teng, Che Ming ; Lin, Chen Huang ; Kuo, Han Pin ; Ko, Feng Nien ; Ishii, Hisahi ; Ishikawa, Tsutomu ; Chen, Ih Sheng. / Effects of CIS-19, a novel PAF receptor antagonist, on PAF-induced eosinophil recruitment and enhancement of superoxide anion generation in guinea-pigs. In: Naunyn-Schmiedeberg's Archives of Pharmacology. 1995 ; Vol. 351, No. 5. pp. 529-534.
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AU - Ko, Feng Nien

AU - Ishii, Hisahi

AU - Ishikawa, Tsutomu

AU - Chen, Ih Sheng

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N2 - We examined the effects of a novel plateletactivating factor (PAF) receptor antagonist, CIS-19 [cis-2-(3,4-dimethoxyphenyl)-6-isopropoxy-7-methoxyl-1-(N-methylformamido)-1,2,3,4-tetrahydronaphthalene], on PAF-induced inflammatory cells recruitment into airways and enhancement of superoxide anion (Oinf2sup-) generation from cells retrieved by bronchoalveolar lavage (BAL) in urethane-anesthetized guinea-pigs. Administration of PAF (30 ng/kg, Lv.) produced a selective increase of eosinophils into airways, but no significant increase of the number of macrophages, neutrophils or lymphocytes. CIS-19 (2.5 and 5 mg/kg, Lv.) significantly inhibited the eosinophil recruitment induced by PAF. In vitro, PAF, phorbol 12-myristate 13-acetate (PMA) and N-formyl-methionyl-leucyl-phenylalanine (FMLP) directly stimulated generation of Oinf2sup-from BAL cells in a concentration-dependent manner. CIS-19 (10-7 - 10-4 M) inhibited production of Oinf2sup-induced by PAF (10-7 M) in a concentration-dependent manner with an EC50 value of 0.84 μM, but not induced by PMA (0.5 μg/ml) or FMLP (10-7 M). Administration of PAF (5 ng/kg, i.v.) enhanced markedly PMA (0.5 μg/ml) and FMLP (10-7 M)-induced generation of Oinf2sup-by 80.2% and 51.3%, respectively. The enhancing effect of PAF was maximal in cells harvested 5 min after the addition of PAF and then declined to baseline level at 60 min. These responses were inhibited by administration of CIS-19 (0.5-2.5 mg/kg, i.v.) or BN 52021(5 mg/kg, i.v.). The results indicate that CIS-19 is potent in inhibition of PAF-induced airway inflammatory response and may have therapeutic potential as an anti-inflammatory drugs.

AB - We examined the effects of a novel plateletactivating factor (PAF) receptor antagonist, CIS-19 [cis-2-(3,4-dimethoxyphenyl)-6-isopropoxy-7-methoxyl-1-(N-methylformamido)-1,2,3,4-tetrahydronaphthalene], on PAF-induced inflammatory cells recruitment into airways and enhancement of superoxide anion (Oinf2sup-) generation from cells retrieved by bronchoalveolar lavage (BAL) in urethane-anesthetized guinea-pigs. Administration of PAF (30 ng/kg, Lv.) produced a selective increase of eosinophils into airways, but no significant increase of the number of macrophages, neutrophils or lymphocytes. CIS-19 (2.5 and 5 mg/kg, Lv.) significantly inhibited the eosinophil recruitment induced by PAF. In vitro, PAF, phorbol 12-myristate 13-acetate (PMA) and N-formyl-methionyl-leucyl-phenylalanine (FMLP) directly stimulated generation of Oinf2sup-from BAL cells in a concentration-dependent manner. CIS-19 (10-7 - 10-4 M) inhibited production of Oinf2sup-induced by PAF (10-7 M) in a concentration-dependent manner with an EC50 value of 0.84 μM, but not induced by PMA (0.5 μg/ml) or FMLP (10-7 M). Administration of PAF (5 ng/kg, i.v.) enhanced markedly PMA (0.5 μg/ml) and FMLP (10-7 M)-induced generation of Oinf2sup-by 80.2% and 51.3%, respectively. The enhancing effect of PAF was maximal in cells harvested 5 min after the addition of PAF and then declined to baseline level at 60 min. These responses were inhibited by administration of CIS-19 (0.5-2.5 mg/kg, i.v.) or BN 52021(5 mg/kg, i.v.). The results indicate that CIS-19 is potent in inhibition of PAF-induced airway inflammatory response and may have therapeutic potential as an anti-inflammatory drugs.

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KW - Guinea-pigs

KW - PAF receptor antagonist

KW - Priming

KW - Superoxide anion

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