Two distinct interstitial macrophage populations coexist across tissues in specific subtissular niches
Macrophages are a heterogeneous cell population involved in tissue homeostasis, inflammation, and various pathologies. Although the major tissue-resident macrophage populations have been extensively studied, interstitial macrophages (IMs) residing within the tissue parenchyma remain poorly defined....
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| Vydané v: | Science (American Association for the Advancement of Science) Ročník 363; číslo 6432 |
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| Hlavní autori: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
| Médium: | Journal Article |
| Jazyk: | English |
| Vydavateľské údaje: |
United States
15.03.2019
|
| Predmet: | |
| ISSN: | 1095-9203, 1095-9203 |
| On-line prístup: | Zistit podrobnosti o prístupe |
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| Shrnutí: | Macrophages are a heterogeneous cell population involved in tissue homeostasis, inflammation, and various pathologies. Although the major tissue-resident macrophage populations have been extensively studied, interstitial macrophages (IMs) residing within the tissue parenchyma remain poorly defined. Here we studied IMs from murine lung, fat, heart, and dermis. We identified two independent IM subpopulations that are conserved across tissues: Lyve1
MHCII
CX3CR1
(Lyve1
MHCII
) and Lyve1
MHCII
CX3CR1
(Lyve1
MHCII
) monocyte-derived IMs, with distinct gene expression profiles, phenotypes, functions, and localizations. Using a new mouse model of inducible macrophage depletion (
), we found that the absence of Lyve1
MHCII
IMs exacerbated experimental lung fibrosis. Thus, we demonstrate that two independent populations of IMs coexist across tissues and exhibit conserved niche-dependent functional programming. |
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| Bibliografia: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1095-9203 1095-9203 |
| DOI: | 10.1126/science.aau0964 |