Cited by 417Acute Myeloid Leukemia ResearchCRISPR and Genetic EngineeringHematopoietic Stem Cell Transplantation

CRISPR-Mediated Gene Editing to Assess the Roles of Tet2 and Dnmt3a in Clonal Hematopoiesis and Cardiovascular Disease

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Sano, Soichi, Oshima, Kosei, Wang, Ying, Katanasaka, Yasufumi, Sano, Miho, Walsh, Kenneth·2018·Circulation Research

Abstract

RATIONALE: Clonal hematopoiesis has been associated with increased mortality and cardiovascular disease. This condition can arise from somatic mutations in preleukemic driver genes within hematopoietic stem/progenitor cells. Approximately 40 candidate driver genes have been identified, but mutations in only 1 of these genes, TET2 (ten-eleven translocation-2), has been shown to casually contribute to cardiovascular disease in murine models. OBJECTIVE: To develop a facile system to evaluate the disease characteristics of different clonal hematopoiesis driver genes using lentivirus vector and CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/clustered regularly interspaced short palindromic repeat-associated 9) methodology. Using this methodology, evaluate whether Dnmt3a (DNA [cytosine-5]-methyltransferase 3a)-a commonly occurring clonal hematopoiesis driver gene-causally contributes to cardiovascular disease. METHODS AND RESULTS: Lentivirus vectors were used to deliver Cas9 and guide RNA to introduce inactivating mutations in Tet2 and Dnmt3a in lineage-negative bone marrow cells. After implantation into lethally irradiated mice, these cells were engrafted and gave rise to labeled blood cell progeny. When challenged with an infusion of Ang II (angiotensin II), mice with inactivating mutations in Tet2 or Dnmt3a displayed greater cardiac hypertrophy, diminished cardiac function, and greater cardiac and renal fibrosis. In comparison with Tet2, inactivation of Dnmt3a did not lead to detectable expansion of the mutant hematopoietic cells during the time course of these experiments. Tet2 inactivation promoted the expression of IL (interleukin) 1β, IL-6, and Ccl5, whereas Dnmt3a inactivation promoted the expression of Cxcl1 (CXC chemokine ligand), Cxcl2, IL-6, and Ccl5 in a lipopolysaccharide-stimulated macrophage cell line. CONCLUSIONS: Experiments using lentivirus vector/CRISPR methodology provided evidence suggesting that inactivating DNMT3A mutations in hematopoietic cells contributes to cardiovascular disease. Comparative analyses showed that inactivation of Tet2 and Dnmt3 was similar in their ability to promote Ang II-induced cardiac dysfunction and renal fibrosis in mice. However, gene-specific actions were indicated by differences in kinetics of hematopoietic stem/progenitor cell expansion and different patterns of inflammatory gene expression.

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Crossref · 10.1161/circresaha.118.313225

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  • Loss of Tet2 or Dnmt3a led to worsening heart function in a mouse model of congestive heart failure, corroborating the human genetic association.

    “Subsequent studies showed that loss of Tet2 or Dnmt3a led to worsening heart function in a mouse model of congestive heart failure, corroborating the human genetic association 87,88.”

    From Clonal hematopoiesis in human aging and disease (2019) · cites this paper as [87]

  • CRISPR mutation of Dnmt3a in mouse RAW 264.7 macrophages led to increased expression of Cxcl1, Cxcl2, and Il6 in response to endotoxin.

    “Another study used CRISPR to mutate Dnmt3a in mouse RAW 264.7 macrophages, and observed increased expression of Cxcl1, Cxcl2, and Il6 in response to endotoxin 87.”

    From Clonal hematopoiesis in human aging and disease (2019) · cites this paper as [87]

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Authors
Sano, S., Oshima, K., Wang, Y., Katanasaka, Y., Sano, M., & Walsh, K.
Affiliations
  • University of Virginia Medical Center (US)
  • Boston University (US)
  • Shizuoka University (JP)
  • University of Virginia (US)
Venue
Circulation Research
Published
2018-07-20
Volume
123
Issue
3
Pages
335-341
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W2800927741
Cited by
417
References
22
Citations by year
2026: 30 · 2025: 56 · 2024: 61 · 2023: 65 · 2022: 73 · 2021: 60 · 2020: 42 · 2019: 23 · 2018: 6 · 2012: 1
FWCI
23.49
Type
journal article
Language
en
Open access
Locations
  • Circulation Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Japan Society for the Promotion of Science (16K18876)
  • National Heart, Lung, and Blood Institute (R01HL131006, R01HL138014, R01HL141256, R01HL132564)
Topics
  • Health Sciences › Medicine › Hematology › Acute Myeloid Leukemia Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
clonal hematopoiesis, TET2, DNMT3A, cardiovascular disease, CRISPR/Cas9 gene inactivation, lentiviral vectors, hematopoietic stem and progenitor cells, angiotensin II, cardiac hypertrophy, myocardial fibrosis, renal fibrosis, chemokine expression, interleukin-6, RANTES
MeSH terms
DNA Methyltransferase 3A, Angiotensin II, Animals, Cardiovascular Diseases, Cells, Cultured, DNA (Cytosine-5-)-Methyltransferases, DNA-Binding Proteins, Hematopoiesis, Hematopoietic Stem Cells, Humans, Macrophages, Male, Mice, Inbred C57BL, Proto-Oncogene Proteins, Cytokines, 3T3 Cells, Gene Silencing, Cell Proliferation, Dioxygenases, Mice, HEK293 Cells, CRISPR-Cas Systems

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