The Cytokine TGF-β Promotes the Development and Homeostasis of Alveolar Macrophages

被引：235

作者：

Yu, Xueyang ^{[1
]}

Buttgereit, Anne ^{[1
]}

Lelios, Iva ^{[1
]}

Utz, Sebastian G. ^{[1
]}

Cansever, Dilay ^{[1
]}

Becher, Burkhard ^{[1
]}

Greter, Melanie ^{[1
]}

机构：

[1] Univ Zurich, Inst Expt Immunol, CH-8057 Zurich, Switzerland

来源：

IMMUNITY | 2017年 / 47卷 / 05期

基金：

瑞士国家科学基金会;

关键词：

TISSUE-RESIDENT MACROPHAGES; EPIDERMAL LANGERHANS CELLS; GM-CSF; GROWTH-FACTOR; DENDRITIC CELLS; FETAL MONOCYTES; PPAR-GAMMA; EXPRESSION PROFILES; GENE-EXPRESSION; MICE;

D O I：

10.1016/j.immuni.2017.10.007

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

Alveolar macrophages (AMs) derive from fetal liver monocytes, which colonize the lung during embryonic development and give rise to fully mature AMs perinatally. AM differentiation requires granulocyte macrophage colony-stimulating factor (GM-CSF), but whether additional factors are involved in AM regulation is not known. Here we report that AMs, in contrast to most other tissue macrophages, were also dependent on transforming growth factor-beta receptor (TGF-beta R) signaling. Conditional deletion of TGF-beta R in mice at different time points halted the development and differentiation of AMs. In adult mice, TGF-beta was also critical for AM homeostasis. The source of TGF-beta was AMs themselves, indicative of an autocrine loop that promotes AM self-maintenance. Mechanistically, TGF-beta R signaling resulted in upregulation of PPAR-gamma, a signature transcription factor essential for the development of AMs. These findings reveal an additional layer of complexity regarding the guidance cues, which govern the genesis, maturation, and survival of AMs.

引用

页码：903 / +

页数：14

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