Cited by 298Cardiac Fibrosis and RemodelingAtherosclerosis and Cardiovascular DiseasesTransplantation: Methods and Outcomes

Cardiac Resident Macrophages Prevent Fibrosis and Stimulate Angiogenesis

Open access
Revelo, Xavier S., Parthiban, Preethy, Chen, Chen, Barrow, Fanta, Fredrickson, Gavin, Wang, Haiguang, Yücel, Doğacan, Herman, Adam +1 more·2021·Circulation Research

Abstract

Rationale: The initial hypertrophy response to cardiac pressure overload is considered compensatory, but with sustained stress, it eventually leads to heart failure. Recently, a role for recruited macrophages in determining the transition from compensated to decompensated hypertrophy has been established. However, whether cardiac resident immune cells influence the early phase of hypertrophy development has not been established. Objective: To assess the role of cardiac immune cells in the early hypertrophy response to cardiac pressure overload induced by transverse aortic constriction (TAC). Methods and Results: We performed cytometry by time-of-flight to determine the identity and abundance of immune cells in the heart at 1 and 4 weeks after TAC. We observed a substantial increase in cardiac macrophages 1 week after TAC. We then conducted Cite-Seq single-cell RNA sequencing of cardiac immune cells isolated from 4 sham and 6 TAC hearts. We identified 12 clusters of monocytes and macrophages, categorized as either resident or recruited macrophages, that showed remarkable changes in their abundance between sham and TAC conditions. To determine the role of cardiac resident macrophages early in the response to a hypertrophic stimulus, we used a blocking antibody against macrophage colony-stimulating factor 1 receptor (CD115). As blocking CD115 initially depletes all macrophages, we allowed the replenishment of recruited macrophages by monocytes before performing TAC. This preferential depletion of resident macrophages resulted in enhanced fibrosis and a blunted angiogenesis response to TAC. Macrophage depletion in CCR2 (C-C chemokine receptor type 2) knockout mice showed that aggravated fibrosis was primarily caused by the recruitment of monocyte-derived macrophages. Finally, 6 weeks after TAC these early events lead to depressed cardiac function and enhanced fibrosis, despite complete restoration of cardiac immune cells. Conclusions: Cardiac resident macrophages are a heterogeneous population of immune cells with key roles in stimulating angiogenesis and inhibiting fibrosis in response to cardiac pressure overload.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/circresaha.121.319737

Cites

39 of 39 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Flow cytometry at day 7 after TAC showed no significant change in infiltrated immune cell, monocyte or macrophage numbers after JQ1.

    “Flow cytometry analyses of cardiac tissue at day 7 post-TAC, a time point associated with immune cell expansion23,24, revealed no significant changes in the number of infiltrated immune cells, monocytes, or macrophages following JQ1 (Extended Data Fig. 1H,I).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Revelo, X. S., Parthiban, P., Chen, C., Barrow, F., Fredrickson, G., Wang, H., Yücel, D., Herman, A., & van Berlo, J. H.
Affiliations
  • University of Minnesota (US)
  • Department of Integrative Biology and Physiology (X.S.R., P.P., F.B., G.F., H.W., D.Y., J.H.v.B.), University of Minnesota, Minneapolis, MN, 55455.
Corresponding author
Revelo, Xavier S.
Venue
Circulation Research
Published
2021-12-03
Volume
129
Issue
12
Pages
1086-1101
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W3207283439
Cited by
298
References
39
Citations by year
2026: 50 · 2025: 80 · 2024: 89 · 2023: 47 · 2022: 31 · 2021: 1
FWCI
28.16
Type
journal article
Language
en
Open access
Locations
  • Circulation Research (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • HHS | NIH | National Institute of Diabetes and Digestive and Kidney Diseases (DK122056)
  • HHS | NIH | National Heart, Lung, and Blood Institute (HL130072, HL155993)
  • Hartwell Foundation (NA)
  • American Association of Immunologists (NA)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Surgery › Transplantation: Methods and Outcomes
Keywords
cardiac resident macrophages, cardiac hypertrophy, cardiac pressure overload, transverse aortic constriction, myocardial fibrosis, angiogenesis, monocyte-derived macrophages, macrophage recruitment, CCR2, CD115, heart failure, monocyte heterogeneity
MeSH terms
Animals, Cells, Cultured, Fibrosis, Cardiomegaly, Macrophages, Mice, Inbred C57BL, Myocardium, Receptor, Macrophage Colony-Stimulating Factor, Neovascularization, Physiologic, Mice, Receptors, CCR2, Single-Cell Analysis, Transcriptome

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review