초록

돼지 말초혈액 탐식세포(PMN 및 monocyte)의 탐식성에 있어서 CLA 이성체의 탐식증강 효과를 검토하였다. 탐식세포의 탐식석은 fowl cytomery로 분석하였으며 결과는 다음과 같다. 1. CLA 이성체(CLA mixture, 10t-12c CLA, 9c-11t CLA, 9c-11c CLA, 9t-11t CLA)를 직접 첨가하여 배양한 PMN과 PBMC 및 fowl cytometry cytograpy에서 세포크기에 의해 분획한 monocyte-rich fractiondpsms 탐식증강 효과가 없었다. 2. 각각의 CLA 이성체로 배양한 PBMN 배양상층액으로 PBMC의 탐식활성을 측정한 결과 증강효과는 관찰되지 않았다. 3. CLA 이성체로 배양한 PBMC 배양상층액 중 CLA mixture, 10t-12c CLA, 9c-11c CLA 처리군에서는 PMN과 monocyte-rich fraction의 탐식활성에 있어서 현저한 증강효과가 관찰되었다. 그러나, 말초혈액 탐식세포들은 9c-11c CLA와 9t-11t CLA로 배양한 PBMC 배양상층액에 의해서는 증강효과가 나타나지 않았다. 4. CLA 이성체로 배양한 PMN 배양상층액에 있어서는 PMN과 monocyte-rich fraction의 탐식성을 측정한 결과, 어느 경우에도 증강효과는 나타나지 않았다. 이상의 결과로부터 CLA 중 CLA mixture, 10t-12c CLA. 9c-11t CLA가 돼지 말초혈액 탐식세포에 대하여 탐식증강효과를 가지고 있으며 이러한 증강효과는 직접적이라기보다는 CLA에 의해 활성화된 단핵구세포에서 분비되는 탐식촉진인자를 함유한 가용성 물질에 의해 autocrine 또는 paracrine 양상으로 탐식세포에 작용하는 것으로 생각되었다.

Abstract

The immunoenhancing effect of CLA isomers (CLA mixture, 10t-12c CLA, 9c-11c CLA, 9c-11c CLA, and 9t-11t CLA) on phagocytic activity of porcine peripheral blood leukocytes was examined. The phagocytic activities of peripheral blood mononuclear cells (PBMC) and polymorphonuclear cells (PMN) were analyzed by a flow cytometry system. The direct treatments of CLA isomers have no effect on phagocytosis of PMN as well as PBMC composed of approximately 10% monocytes and 90% lymphocytes. However, the phagocytic activities of PMN and monocyterich fraction from PBMC were remarkably enhanced by culture supernatant from PBMC treated with CLA mixture, 10t-12c CLA and 9c-11t CLA but not 9c-11c CLA and 9t-11t CLA. The phagocytic activity of PBMC was not enhanced by culture supernatant from PBMC treated with all CLA isomers. These results indicated that CLA isomers such as CLA mixture, l0t -12c CLA and 9c-11t CLA have an enhancing effect on phagocytosis of PMN and monocytes, which may be mediated through active humoral substances produced by CLA-stimulated PBMC. This study suggested that CLA stimulates PBMC to elaborate soluble factor(s), which may be an important mechanism for the enhancement of phagocytosis in non-specific immunity.

주제어

#돼지   #말초혈액탐식세포   #탐식능  

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