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Splenic Influence on the Development of a Local Pulmonary Immune Response

机译:脾脏对局部肺免疫反应发展的影响。

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The role of the spleen in the development of specific antibody-forming cells (sAFC) in the pulmonary draining lymph nodes (pdLNC) of hamsters after local inoculation of sheep erythrocytes (SRBC) was evaluated. The role of the spleen was viewed from two vantage points. Panels of animals were either splenectomized with appropriate sham-operated controls before intratracheal inoculation of SRBC, or panels were immunized intravenously simultaneously with the local inoculation of antigen. The presence of an intact spleen was not necessary for the induction of a sAFC response to occur in the pdLNC. Similar numbers of immunoglobulin M (IgM) sAFC were recorded in the pdLNC on day 4 of both sham-operated and splenectomized animals. However, an enhancement of this local response occurred on day 7 if the animals were systemically immunized and therefore demonstrated active participation of the spleen in the specific immune response. The results support the hypothesis that although a local response may occur in the pdLFC in the absence of a spleen or a splenic response, the presence of a systemic or splenic response appears to be important for the enhancement of local IgM sAFC response. These observations suggest that the immune defenses involved in the lower respiratory tract may differ from those in upper respiratory tract and other mucosally lined organs in that the response of the spleen to the antigen affects the local response to that antigen.
机译:在局部接种绵羊红细胞(SRBC)后,评估了脾脏在仓鼠肺引流淋巴结(pdLNC)中特异性抗体形成细胞(sAFC)发育中的作用。从两个有利的角度观察了脾脏的作用。在气管内接种SRBC之前,用适当的假手术对照对动物组进行脾切除术,或者在局部接种抗原的同时静脉内免疫动物。完整脾脏的存在对于在pdLNC中诱导sAFC应答不是必需的。假手术和脾切除动物的第4天在pdLNC中记录到相似数量的免疫球蛋白M(IgM)sAFC。但是,如果对动物进行全身免疫,则这种局部反​​应的增强会在第7天发生,因此表明脾脏积极参与了特定的免疫反应。结果支持以下假设:尽管在不存在脾脏或脾脏反应的情况下,pdLFC中可能发生局部反应,但全身或脾脏反应的出现对于增强局部IgM sAFC反应似乎很重要。这些观察结果表明,涉及下呼吸道的免疫防御可能不同于上呼吸道和其他粘膜衬里器官的免疫防御,因为脾对抗原的反应影响了对该抗原的局部反应。

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