| Literature DB >> 33766856 |
Lu Bai1,2, Margaux Vienne3, Ling Tang1,2, Yann Kerdiles3, Rui Sun4,2,5, Eric Vivier6,7,8, Hui Peng4,2,5, Zhigang Tian4,2,5, Marion Etiennot3, Bertrand Escalière3, Justine Galluso3, Haiming Wei1,2,5.
Abstract
The pathways that lead to the development of tissue-resident lymphocytes, including liver type 1 innate lymphoid cells (ILC1s), remain unclear. We show here that the adult mouse liver contains Lin-Sca-1+Mac-1+ hematopoietic stem cells derived from the fetal liver. This population includes Lin-CD122+CD49a+ progenitors that can generate liver ILC1s but not conventional natural killer cells. Interferon-γ (IFN-γ) production by the liver ILC1s themselves promotes the development of these cells in situ, through effects on their IFN-γR+ liver progenitors. Thus, an IFN-γ-dependent loop drives liver ILC1 development in situ, highlighting the contribution of extramedullary hematopoiesis to regional immune composition within the liver.Entities:
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Year: 2021 PMID: 33766856 DOI: 10.1126/science.aba4177
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728