Evidence map›Paper›PMID 31697805›Full record

ArticleBlood2019

A role for macrophages in hematopoiesis in the embryonic head.

Zhuan Li, Samanta A Mariani, Carmen Rodriguez-Seoane, Wenyan He, Xiaowei Ning, Bing Liu, Chris S Vink, Elaine Dzierzak

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.6field-weighted citation impact, top 36% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Macrophages in Hematopoiesis and Related Blood Diseases.Genomics, proteomics & bioinformatics · 2025
    Review
  2. Review
  3. Multimodal analysis ofbioRxiv : the preprint server for biology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Hydrogel-based microenvironment engineering of haematopoietic stem cells.Cellular and molecular life sciences : CMLS · 2023
    Review
  8. Review
  9. Article
  10. Article
  11. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Zhuan LiCentre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom.
Samanta A MarianiCentre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom.
Carmen Rodriguez-SeoaneCentre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom.
Wenyan HeChina National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; and.
Xiaowei NingLaboratory of Oncology, Fifth Medical Center, General Hospital of People's Liberation Army (PLA), Beijing, China.
Bing LiuLaboratory of Oncology, Fifth Medical Center, General Hospital of People's Liberation Army (PLA), Beijing, China.
Chris S VinkCentre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom.
Elaine DzierzakCentre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom.
Centre for Inflammation Research · GBAcademy of Military Medical Sciences · CNCapital Medical University · CNChinese PLA General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Along with the aorta-gonad-mesonephros region, the head is a site of hematopoietic stem and progenitor cell (HS/PC) development in the mouse embryo. Macrophages are present in both these embryonic hemogenic sites, and recent studies indicate a functional interaction of macrophages with hematopoietic cells as they are generated in the aorta. Whereas brain macrophages or "microglia" are known to affect neuronal patterning and vascular circuitry in the embryonic brain, it is unknown whether macrophages play a role in head hematopoiesis. Here, we characterize head macrophages and examine whether they affect the HS/PC output of the hindbrain-branchial arch (HBA) region of the mouse embryo. We show that HBA macrophages are CD45+F4/80+CD11b+Gr1- and express the macrophage-specific Csf1r-GFP reporter. In the HBA of chemokine receptor-deficient (Cx3cr1-/-) embryos, a reduction in erythropoiesis is concomitant with a decrease in HBA macrophage percentages. In cocultures, we show that head macrophages boost hematopoietic progenitor cell numbers from HBA endothelial cells > twofold, and that the proinflammatory factor tumor necrosis factor-α is produced by head macrophages and influences HBA hematopoiesis in vitro. Taken together, head macrophages play a positive role in HBA erythropoiesis and HS/PC expansion and/or maturation, acting as microenvironmental cellular regulators in hematopoietic development.

Indexed as

AnimalsEmbryo, MammalianEndothelial CellsErythropoiesisFemaleHeadHematopoietic Stem CellsMacrophagesMaleMiceMice, Knockout

Identifiers

PMID31697805
PMCPMC7046597
OpenAlexW2980765251

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.