Cited by 1,536Atherosclerosis and Cardiovascular DiseasesAcute Myeloid Leukemia ResearchInflammasome and immune disorders

Clonal hematopoiesis associated with TET2 deficiency accelerates atherosclerosis development in mice

Open access
Fuster, José J., MacLauchlan, Susan, Zuriaga, María A., Polackal, Maya N., Ostriker, Allison C., Chakraborty, Raja, Wu, Chia-Ling, Sano, Soichi +11 more·2017·Science

Abstract

Faulty blood cells and heart disease: Recent studies have shown that elderly people's blood cells often harbor mutations in genes encoding certain epigenetic regulators. These mutations can lead to clonal expansion of the mutant blood cells, which increases the risk of blood cancers and cardiovascular disease. Fuster et al. generated a mouse model to investigate how one of these genes, Tet2 , affects atherosclerosis development (see the Perspective by Zhu et al. ). They found that the disease progressed more rapidly in mice transplanted with Tet2 -deficient bone marrow cells. This was due to increased secretion of interleukin-1β by Tet2 -deficient macrophages in a process that depended on the action of inflammasomes. Science , this issue p. 842 ; see also p. 798

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Crossref · 10.1126/science.aag1381

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  • Inflammation has been shown to be a driver of Tet2-mutant clonal hematopoiesis.

    “inflammation has been shown to be a driver of Tet2-mutant CH.”

    From Chronic infection drives Dnmt3a-loss-of-function clonal hematopoiesis via IFNγ signaling (2021) · cites this paper as Fuster et al., 2017

    The paper reports the opposite causal direction: TET2 deficiency increases inflammatory cytokine production, while clonal expansion of TET2-deficient cells contributes to atherosclerosis. In the indexed passage labeled Abstract (page unavailable), NLRP3 inhibition reduced atherosclerosis but “did not affect the expansion of TET2-deficient cells”; it does not show inflammation driving that expansion. (LLM, conf=0.88)

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  • CHIP-associated mutations alter the development and function of myeloid cells.

    “As CHIP-associated mutations are known to alter the development and function of myeloid cells”

    From Clonal hematopoiesis is associated with protection from Alzheimer’s disease (2023) · cites this paper as [11]

    The indexed paper reports that TET2-deficient cells in mice show a myeloid differentiation bias and that TET2-deficient macrophages have altered inflammatory responses. This supports the claim for TET2, but the paper does not establish the same effects for CHIP-associated mutations generally. The indexed passages are labeled “Abstract”; no page numbers are supplied. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • CH is associated with a significantly increased risk of all-cause mortality and particularly cardiovascular disease.

    “This observation was repeated in subsequent reports which also added the significantly increased risk of all-cause mortality and particularly cardiovascular disease (CVD) [31,32].”

    From Clonal hematopoiesis and inflammation – the perpetual cycle (2023) · cites this paper as [31]

    The indexed Abstract reports that clonal hematopoiesis correlates with increased atherosclerotic cardiovascular disease and describes human studies associating it with more CVD-related deaths. It does not report an association with all-cause mortality or establish statistical significance for those human associations. No page number is supplied in our copy. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Ldlr−/− recipients of Tet2 knockout HSPCs have larger atherosclerotic plaques compared to control mice when fed a high-fat diet; the effect in heterozygous Tet2 knockout is relatively milder.

    “The Ldlr−/− recipients of Tet2 knockout HSPCs had larger atherosclerotic plaques compared to the control mice when fed a high-fat diet; the effect in the heterozygous Tet2 knockout was relatively milder.”

    From Clonal hematopoiesis and inflammation – the perpetual cycle (2023) · cites this paper as [31]

    The passage discussing atherogenesis (indexed under Abstract; page unavailable) reports that high-fat/high-cholesterol-fed Ldlr−/− mice receiving Tet2−/− bone marrow cells had 60% larger aortic-root plaques than wild-type controls. It also reports that Tet2+/− cells accelerated atherosclerosis, but describes slower cell-expansion kinetics—not a milder effect on plaque size—so the final comparison is unsupported. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Tet2 loss, including Tet2 heterozygous knockout, confers increased competitive repopulating capacity in Ldlr−/− recipients on a high-fat/high-cholesterol diet, notable both at mature cells and HSPC compartment in marrow.

    “In murine models, Tet2 loss, including the more clinically relevant Tet2 heterozygous knockout state, confers increased competitive repopulating capacity in Ldlr−/− recipients on a high-fat/high-cholesterol diet notable both at the level of mature cells and the HSPC compartment in the marrow [31].”

    From Clonal hematopoiesis and inflammation – the perpetual cycle (2023) · cites this paper as [31]

    The paper’s competitive-transplantation passages report expansion of Tet2−/− cells in Ldlr−/− recipients fed a high-fat/high-cholesterol diet, both among mature blood cells and in the marrow HSPC compartment (Abstract; Figs. 1 and S3). It also reports expansion of Tet2+/− cells, but describes slower kinetics and does not establish the claimed marrow-HSPC finding specifically for heterozygous cells (Abstract; Fig. S5). (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 1

  1. [2]Fernández-Friera L Peñalvo JL Fernández-Ortiz A Ibañez B López-Melgar B Laclaustra M Oliva B Mocoroa A Mendiguren J Martínez de Vega V García L Molina J Sánchez-González J Guzmán G Alonso-Farto JC Guallar E Civeira F Sillesen H Pocock S Ordovás JM Sanz G Jiménez-Borreguero LJ Fuster V Circulation 131 2104 2113 2015 25882487

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Authors
Fuster, J. J., MacLauchlan, S., Zuriaga, M. A., Polackal, M. N., Ostriker, A. C., Chakraborty, R., Wu, C.-L., Sano, S., Muralidharan, S., Rius, C., Vuong, J., Jacob, S., Muralidhar, V., Robertson, A. A. B., Cooper, M. A., Andrés, V., Hirschi, K. K., Martin, K. A., & Walsh, K.
Affiliations
  • Boston University (US)
  • Yale University (US)
  • Spanish National Centre for Cardiovascular Research (ES)
  • The University of Queensland (AU)
Corresponding author
  • Fuster, José J.
  • Walsh, Kenneth
Venue
Science
Published
2017-02-24
Volume
355
Issue
6327
Pages
842-847
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2578808037
Cited by
1,536
References
30
Citations by year
2026: 175 · 2025: 196 · 2024: 180 · 2023: 176 · 2022: 201 · 2021: 183 · 2020: 153 · 2019: 122 · 2018: 99 · 2017: 47 · 2012: 1
FWCI
52.13
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-nd)
Funders
  • National Institutes of Health (award297011, HL132564,HL126141,HL131006,HL119529 ,HL118430)
  • American Heart Association (award297012, 17SDG33400213)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Hematology › Acute Myeloid Leukemia Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
clonal hematopoiesis, TET2 deficiency, atherosclerosis, bone marrow transplantation, macrophages, IL-1β, inflammasome, epigenetic regulators, cardiovascular disease, mouse model
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Animals, DNA-Binding Proteins, Hematopoiesis, Hematopoietic Stem Cells, Macrophages, Mice, Inbred C57BL, Mutation, Proto-Oncogene Proteins, Receptors, LDL, Dioxygenases, Atherosclerosis, Mice, Plaque, Atherosclerotic, Inflammasomes

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