Neutrophils instruct homeostatic and pathological states in naive tissues

Autor: Maria Casanova-Acebes, Magdalena Leiva, Juan A. Quintana, José Ángel Nicolás-Ávila, Sapna Devi, Héctor Peinado, José M. Adrover, Andrés Hidalgo, Georgiana Crainiciuc, Noelia A-Gonzalez, Lai Guan Ng, Susana García-Silva, Arthur Mortha, Jackson LiangYao Li, Matthias Gunzer, Miriam Merad, Oliver Soehnlein, Takashi Nagasawa, Kyle Burrows, Akhila Balachander, Iván Ballesteros, Christian Weber, Linnea A. Weiss, Andrea Rubio-Ponce
Přispěvatelé: Deutsche Forschungsgemeinschaft (Alemania), Ministerio de Ciencia, Innovación y Universidades (España), Comunidad de Madrid (España), Canadian Institutes of Health Research, Fundación ProCNIC, Biochemie, RS: CARIM - R3.07 - Structure-function analysis of the chemokine interactome for therapeutic targeting and imaging in atherosclerosis
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: The Journal of Experimental Medicine
Journal of Experimental Medicine
Repisalud
Instituto de Salud Carlos III (ISCIII)
Journal of Experimental Medicine, 215(11), 2778-2795. Rockefeller University Press
ISSN: 0022-1007
Popis: Neutrophils enter tissues to mediate immunity and inflammation. Casanova-Acebes et al. show that migration into naive tissues is equally important. In the intestine, they provide remote support to hematopoietic niches, whereas in the lungs they regulate circadian transcription and metastasis.
Immune protection relies on the capacity of neutrophils to infiltrate challenged tissues. Naive tissues, in contrast, are believed to remain free of these cells and protected from their toxic cargo. Here, we show that neutrophils are endowed with the capacity to infiltrate multiple tissues in the steady-state, a process that follows tissue-specific dynamics. By focusing in two particular tissues, the intestine and the lungs, we find that neutrophils infiltrating the intestine are engulfed by resident macrophages, resulting in repression of Il23 transcription, reduced G-CSF in plasma, and reinforced activity of distant bone marrow niches. In contrast, diurnal accumulation of neutrophils within the pulmonary vasculature influenced circadian transcription in the lungs. Neutrophil-influenced transcripts in this organ were associated with carcinogenesis and migration. Consistently, we found that neutrophils dictated the diurnal patterns of lung invasion by melanoma cells. Homeostatic infiltration of tissues unveils a facet of neutrophil biology that supports organ function, but can also instigate pathological states.
Graphical Abstract
Databáze: OpenAIRE