Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Int J Mol Sci. 2021 Oct 14;22(20):11094. doi: 10.3390/ijms222011094.
Interleukin-15 (IL-15) is a pleiotropic cytokine that classically acts to support the development, maintenance, and function of killer lymphocytes. IL-15 is abundant in the uterus prior to and during pregnancy, but it is subject to tight spatial and temporal regulation. Both mouse models and human studies suggest that homeostasis of IL-15 is essential for healthy pregnancy. Dysregulation of IL-15 is associated with adverse outcomes of pregnancy. Herein, we review producers of IL-15 and responders to IL-15, including non-traditional responders in the maternal uterus and fetal placenta. We also review regulation of IL-15 at the maternal-fetal interface and propose mechanisms of action of IL-15 to facilitate additional study of this critical cytokine in the context of pregnancy.
白细胞介素-15(IL-15)是一种多效细胞因子,经典作用是支持杀伤淋巴细胞的发育、维持和功能。IL-15 在妊娠前和妊娠期间在子宫中大量存在,但受到严格的时空调节。小鼠模型和人类研究均表明,IL-15 的稳态对于健康妊娠至关重要。IL-15 的失调与妊娠不良结局有关。本文综述了 IL-15 的产生者和对 IL-15 的应答者,包括母体子宫和胎儿胎盘中的非传统应答者。我们还综述了母体-胎儿界面处 IL-15 的调节,并提出了 IL-15 的作用机制,以促进在妊娠背景下对这种关键细胞因子的进一步研究。