The protozoan pathogen Toxoplasma gondii co-opts host immunity by secreting various effector proteins into host cells. In this issue of JEM, Chen et al. (https://doi.org/10.1084/jem.20181757) report that T. gondii injects an effector called ROP16 without invasion to polarize macrophages toward M2 cells.

中文翻译：

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无感染情况下注射决定

原生动物病原体弓形虫通过将各种效应蛋白分泌到宿主细胞中来选择宿主免疫。在本期 JEM 中，Chen 等人。(https://doi.org/10.1084/jem.20181757) 报道弓形虫在无侵入的情况下注射一种名为 ROP16 的效应子，使巨噬细胞向 M2 细胞极化。