Alveolar macrophages rely on GM-CSF from alveolar epithelial type 2 cells before and after birth.
Alveolar macrophages rely on GM-CSF from alveolar epithelial type 2 cells before and after birth.
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DOI:
10.1084/jem.20210745
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发表时间:
2021-10-04
期刊:
影响因子:
--
通讯作者:
Schneider C
中科院分区:
文献类型:
--
作者:
Gschwend J;Sherman SPM;Ridder F;Feng X;Liang HE;Locksley RM;Becher B;Schneider C
This study identifies AT2s as the relevant source of GM-CSF for the development and maintenance of alveolar macrophages. During organogenesis, nascent AT2s induce GM-CSF expression in a perfectly timed manner to support the proliferation and differentiation of fetal monocytes that contemporaneously seed the embryonic lungs. Programs defining tissue-resident macrophage identity depend on local environmental cues. For alveolar macrophages (AMs), these signals are provided by immune and nonimmune cells and include GM-CSF (CSF2). However, evidence to functionally link components of this intercellular cross talk remains scarce. We thus developed new transgenic mice to profile pulmonary GM-CSF expression, which we detected in both immune cells, including group 2 innate lymphoid cells and γδ T cells, as well as AT2s. AMs were unaffected by constitutive deletion of hematopoietic Csf2 and basophil depletion. Instead, AT2 lineage-specific constitutive and inducible Csf2 deletion revealed the nonredundant function of AT2-derived GM-CSF in instructing AM fate, establishing the postnatal AM compartment, and maintaining AMs in adult lungs. This AT2-AM relationship begins during embryogenesis, where nascent AT2s timely induce GM-CSF expression to support the proliferation and differentiation of fetal monocytes contemporaneously seeding the tissue, and persists into adulthood, when epithelial GM-CSF remains restricted to AT2s.
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DOI:
10.1084/jem.20160897
发表时间:
2016-11-14
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Hartmann FJ;Bernard-Valnet R;Quériault C;Mrdjen D;Weber LM;Galli E;Krieg C;Robinson MD;Nguyen XH;Dauvilliers Y;Liblau RS;Becher B
通讯作者:
Becher B
影响因子:
27.4
作者:
Behrens F;Tak PP;Østergaard M;Stoilov R;Wiland P;Huizinga TW;Berenfus VY;Vladeva S;Rech J;Rubbert-Roth A;Korkosz M;Rekalov D;Zupanets IA;Ejbjerg BJ;Geiseler J;Fresenius J;Korolkiewicz RP;Schottelius AJ;Burkhardt H
通讯作者:
Burkhardt H
影响因子:
32.4
作者:
Evren, Elza;Ringqvist, Emma;Willinger, Tim
通讯作者:
Willinger, Tim
DOI:
10.1084/jem.20131199
发表时间:
2013-09-23
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Guilliams M;De Kleer I;Henri S;Post S;Vanhoutte L;De Prijck S;Deswarte K;Malissen B;Hammad H;Lambrecht BN
通讯作者:
Lambrecht BN
DOI:
10.1073/pnas.1813952116
发表时间:
2019-03-05
影响因子:
11.1
作者:
Frank, David B.;Penkala, Ian J.;Morrisey, Edward E.
通讯作者:
Morrisey, Edward E.