The transcription factor NR4A1 (Nur77) controls bone marrow differentiation and the survival of Ly6C− monocytes

Ly6C – monocytes patrol blood vessels by crawling along uninflamed vasculature. Hedrick and colleagues show that the transcription factor NR4A1 is required for the development and survival of Ly6C – monocytes. The transcription factors that regulate differentiation into the monocyte subset in bone m...

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Veröffentlicht in:Nature immunology 2011-07, Vol.12 (8), p.778-785
Hauptverfasser: Hanna, Richard N, Carlin, Leo M, Hubbeling, Harper G, Nackiewicz, Dominika, Green, Angela M, Punt, Jennifer A, Geissmann, Frederic, Hedrick, Catherine C
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container_end_page 785
container_issue 8
container_start_page 778
container_title Nature immunology
container_volume 12
creator Hanna, Richard N
Carlin, Leo M
Hubbeling, Harper G
Nackiewicz, Dominika
Green, Angela M
Punt, Jennifer A
Geissmann, Frederic
Hedrick, Catherine C
description Ly6C – monocytes patrol blood vessels by crawling along uninflamed vasculature. Hedrick and colleagues show that the transcription factor NR4A1 is required for the development and survival of Ly6C – monocytes. The transcription factors that regulate differentiation into the monocyte subset in bone marrow have not yet been identified. Here we found that the orphan nuclear receptor NR4A1 controlled the differentiation of Ly6C − monocytes. Ly6C − monocytes, which function in a surveillance role in circulation, were absent from Nr4a1 −/− mice. Normal numbers of myeloid progenitor cells were present in Nr4a1 −/− mice, which indicated that the defect occurred during later stages of monocyte development. The defect was cell intrinsic, as wild-type mice that received bone marrow from Nr4a1 −/− mice developed fewer patrolling monocytes than did recipients of wild-type bone marrow. The Ly6C − monocytes remaining in the bone marrow of Nr4a1 −/− mice were arrested in S phase of the cell cycle and underwent apoptosis. Thus, NR4A1 functions as a master regulator of the differentiation and survival of 'patrolling' Ly6C − monocytes.
doi_str_mv 10.1038/ni.2063
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subjects 631/136/142
631/250/2504/342
631/45/612/822
Animals
Antigens, Ly - immunology
Apoptosis - immunology
Biomedical and Life Sciences
Biomedicine
Bone marrow
Bone Marrow - immunology
Cell Cycle - immunology
Cell Differentiation - immunology
DNA Damage - immunology
Flow Cytometry
Immunology
Infectious Diseases
Mice
Mice, Inbred C57BL
Mice, Knockout
Monocytes - immunology
Nuclear Receptor Subfamily 4, Group A, Member 1 - genetics
Nuclear Receptor Subfamily 4, Group A, Member 1 - immunology
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger - chemistry
RNA, Messenger - genetics
Specific Pathogen-Free Organisms
title The transcription factor NR4A1 (Nur77) controls bone marrow differentiation and the survival of Ly6C− monocytes
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