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Regulation of VIP production and secretion by murine lymphocytes.

机译:鼠淋巴细胞对VIP产生和分泌的调节。

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摘要

Vasoactive intestinal peptide (VIP) is a neuropeptide present in the lymphoid microenvironment with a multiplicity of actions. Two sources for VIP have been described in the immune system, the terminals present in central and peripheral lymphoid organs and the immune cells. Although VIP is synthesized by lymphocytes, there is no evidence demonstrating that VIP is released, and which stimuli are able to induce VIP production and secretion. In this study, we demonstrated for the first time, that agents that mediate important immune functions, such as proliferation and antigenic stimulation (Con A, LPS, and anti-TCR antibody), inflammation (LPS, TNFalpha, IL-6 and IL-1beta) or apoptosis (dexamethasone) induce the production and release of VIP to the lymphoid microenvironment. We conclude that VIP is produced and secreted by lymphocytes and propose that during an immune response, the timely release of VIP within the lymphoid organs and peritoneum should influence the differentiation and/or downregulation of the ongoing response.
机译:血管活性肠肽(VIP)是一种存在于淋巴微环境中的神经肽,具有多种作用。免疫系统中已经描述了两种VIP来源,即中央和周围淋巴器官的末端以及免疫细胞。尽管VIP是由淋巴细胞合成的,但没有证据表明VIP被释放,并且哪些刺激能够诱导VIP的产生和分泌。在这项研究中,我们首次证明了介导重要免疫功能(例如增殖和抗原刺激(Con A,LPS和抗TCR抗体),炎症(LPS,TNFalpha,IL-6和IL- 1beta)或凋亡(地塞米松)诱导VIP的产生和释放到淋巴微环境。我们得出结论,VIP是由淋巴细胞产生和分泌的,并建议在免疫应答期间,淋巴器官和腹膜内VIP的及时释放应影响正在进行的应答的分化和/或下调。

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