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首页> 外文期刊>Journal of Leukocyte Biology: An Official Publication of the Reticuloendothelial Society >Effect of pentoxifylline on polarization and migration of human leukocytes.
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Effect of pentoxifylline on polarization and migration of human leukocytes.

机译:己酮可可碱对人白细胞极化和迁移的影响。

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摘要

Leukocyte polarization has a key role in the induction and effector phases of immune response. We assessed the effect of pentoxifylline (PTX) on the polarization and migration of human lymphocytes and neutrophils. A dose-dependent, inhibitory effect on the polarization of lymphoid cells induced by chemokines or IL-15 was found. In addition, PTX interfered with the chemotaxis of peripheral blood T cells and T lymphoblasts. A similar effect was observed on the transendothelial migration of these cells. In addition, the polarization of neutrophils, its adherence to endothelium, and their transendothelial migration, induced by different stimuli, were inhibited by PTX. By contrast, this drug had only a mild effect on endothelial cells and a partial inhibition on the induction of ICAM-1 expression by TNF-alpha. The inhibitory effect of PTX on leukocyte polarization and extravasation may contribute significantly to the anti-inflammatory and immunoregulatory activity of this drug.
机译:白细胞极化在免疫应答的诱导阶段和效应阶段具有关键作用。我们评估了己酮可可碱(PTX)对人淋巴细胞和中性粒细胞极化和迁移的影响。发现对趋化因子或IL-15诱导的淋巴样细胞极化具有剂量依赖性抑制作用。另外,PTX干扰外周血T细胞和T淋巴母细胞的趋化性。在这些细胞的跨内皮迁移中观察到类似的作用。此外,PTX抑制了中性粒细胞的极化,其对内皮的粘附以及它们在不同刺激下的跨内皮迁移。相比之下,这种药物对内皮细胞只有轻微的作用,对TNF-α诱导的ICAM-1表达有部分抑制作用。 PTX对白细胞极化和外渗的抑制作用可能显着促进该药物的抗炎和免疫调节活性。

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