Effect of rat CINC/gro, a member of the interleukin-8 family, on leukocytes in microcirculation of the rat mesentery

Kazuyoshi Watanabe, Makoto Suematsu, Megumi Iida, Kiyosumi Takaishi, Yoshio Iizuka, Hidekazu Suzuki, Masayuki Suzuki, Masaharu Tsuchiya, Susumu Tsurufuji

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Abstract

Rat cytokine-induced neutrophil chemoattractant (CINC) is a member of the IL-8 family, and its human counterpart is gro/MGSA but not IL-8. We ascertained that chemically synthesized CINC was comparable to native CINC/gro with regard to chemotactic activity for rat neutrophils and studied the effect of synthesized CINC/gro on circulating leukocytes in microvascular vessels of rat mesentery. Exposure of rat mesentery to 10-8 M authentic CINC/gro induced neutrophil adherence to and extravasation from postcapillary venules (PCVs) but not from capillaries or arterioles. CINC/gro concentrations as low as 10-10 M were effective in causing neutrophil adherence. Neutrophils adhered to thin PCVs (mean diameter, ∼25 μm) after exposure to CINC/gro for 15 min. The mean diameters of the PCV with adherence of neutrophils after exposure to CINC/gro for 30 and 60 min were 37 and 43 μm, respectively. The diameters of PCV with extravasation of neutrophils also increased in a time-dependent manner. The starting position of adherence of neutrophils was ∼25-50 μm away from the upper junction of two vessels and remained virtually unchanged during exposure to CINC/gro for 60 min. However, the distance from the start to the end of neutrophil adherence increased in a time-dependent manner. The effect of CINC/gro on adherence and extravasation of leukocytes was neutrophil specific since other leukocytes such as lymphocytes and monocytes were not identified among the adherent and extravasated leukocytes.

Original languageEnglish
Pages (from-to)60-69
Number of pages10
JournalExperimental and Molecular Pathology
Volume56
Issue number1
DOIs
Publication statusPublished - 1992

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Microcirculation
Mesentery
Chemotactic Factors
Interleukin-8
Rats
Neutrophils
Leukocytes
Cytokines
Venules
Lymphocytes

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Molecular Biology
  • Pathology and Forensic Medicine

Cite this

Effect of rat CINC/gro, a member of the interleukin-8 family, on leukocytes in microcirculation of the rat mesentery. / Watanabe, Kazuyoshi; Suematsu, Makoto; Iida, Megumi; Takaishi, Kiyosumi; Iizuka, Yoshio; Suzuki, Hidekazu; Suzuki, Masayuki; Tsuchiya, Masaharu; Tsurufuji, Susumu.

In: Experimental and Molecular Pathology, Vol. 56, No. 1, 1992, p. 60-69.

Research output: Contribution to journalArticle

Watanabe, K, Suematsu, M, Iida, M, Takaishi, K, Iizuka, Y, Suzuki, H, Suzuki, M, Tsuchiya, M & Tsurufuji, S 1992, 'Effect of rat CINC/gro, a member of the interleukin-8 family, on leukocytes in microcirculation of the rat mesentery', Experimental and Molecular Pathology, vol. 56, no. 1, pp. 60-69. https://doi.org/10.1016/0014-4800(92)90023-5
Watanabe, Kazuyoshi ; Suematsu, Makoto ; Iida, Megumi ; Takaishi, Kiyosumi ; Iizuka, Yoshio ; Suzuki, Hidekazu ; Suzuki, Masayuki ; Tsuchiya, Masaharu ; Tsurufuji, Susumu. / Effect of rat CINC/gro, a member of the interleukin-8 family, on leukocytes in microcirculation of the rat mesentery. In: Experimental and Molecular Pathology. 1992 ; Vol. 56, No. 1. pp. 60-69.
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