Alveolar macrophages (AM), which are enhanced by GM-SCF, are an essential piece of the innate immune response and are known to contribute to host defense against flu infections in animal models.

肺泡巨噬细胞(AM)被GM - SCF强化，这是先天免疫应答的重要部分，已知在动物模型有助宿主防御流感病毒感染。

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Nitric oxide is an important effector molecule of macrophages that is involved in immune regulation and host defense.

一氧化氮是一种重要的巨噬细胞免疫效应分子，它参与免疫调节和宿主防御反应。

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Whether minimal residual disease results in clinical metastases is a function of host defense and tumor survival and growth.

微小转移瘤是否可以导致临床上肿瘤的转移，取决于宿主的防御功能和肿瘤的侵袭能力。

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O'Mara on Friday revealed a new website, www.gzlegalcase.com, and another site, not yet live, that will host a defense fund.

CNN: Judge delays decision on Zimmerman contributions

Washington reportedly offered Russia access to sites in the United States and, pending agreement with host governments, access to our missile defense facilities in Europe.

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Russia has been menacing its East European neighbors, including those, like Poland, that have offered to host elements of a NATO missile-defense system to protect Europe.

WSJ: Eliot Cohen: American Withdrawal and World Disorder