Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Mucosal Immunol. 2022 Jun;15(6):1199-1211. doi: 10.1038/s41385-022-00518-7. Epub 2022 May 10.
Helminths are remarkably successful parasites that can invade various mammalian hosts and establish chronic infections that can go unnoticed for years despite causing severe tissue damage. To complete their life cycles, helminths migrate through multiple barrier sites that are densely populated by a complex array of hematopoietic and non-hematopoietic cells. While it is clear that type 2 cytokine responses elicited by immune cells promote worm clearance and tissue healing, the actions of non-hematopoietic cells are increasingly recognized as initiators, effectors and regulators of anti-helminth immunity. This review will highlight the collective actions of specialized epithelial cells, stromal niches, stem, muscle and neuroendocrine cells as well as peripheral neurons in the detection and elimination of helminths at mucosal sites. Studies dissecting the interactions between immune and non-hematopoietic cells will truly provide a better understanding of the mechanisms that ensure homeostasis in the context of helminth infections.
寄生虫非常成功,它们可以侵入各种哺乳动物宿主,并建立慢性感染,尽管会造成严重的组织损伤,但这种感染可能多年都不会被发现。为了完成它们的生命周期,寄生虫通过多个屏障部位迁移,这些部位密集分布着复杂的造血细胞和非造血细胞。虽然很明显,免疫细胞产生的 2 型细胞因子反应促进了蠕虫清除和组织愈合,但非造血细胞的作用越来越被认为是抗寄生虫免疫的启动子、效应子和调节剂。这篇综述将强调专门的上皮细胞、基质龛、干细胞、肌肉和神经内分泌细胞以及外周神经元在检测和清除粘膜部位寄生虫方面的集体作用。研究剖析免疫细胞和非造血细胞之间的相互作用将真正更好地理解在寄生虫感染的情况下确保体内平衡的机制。