ArticlePhysiological reports2022
Differences in the expression of DNA methyltransferases and demethylases in leukocytes and the severity of pulmonary arterial hypertension between ethnic groups.
Article in Physiological reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 8 citations in OpenAlex.
- Increased TET3 expression associates with proinflammatory cytokines and reduced 5-hydroxymethylcytosine in periapical lesions.Clinical oral investigations · 2026Article
- Dynamin 2 Regulates Mitochondrial Mitotic Fission in Pulmonary Hypertension.Circulation research · 2026Article
- Differential methylation in blood pressure control genes is associated to essential hypertension in African Brazilian populations.Epigenetics · 2025Article
- Exploring the pathogenesis of pulmonary vascular disease.Frontiers in medicine · 2024Review
- Unraveling the role of HIF and epigenetic regulation in pulmonary arterial hypertension: implications for clinical research and its therapeutic approach.Frontiers in medicine · 2024Review
- Unraveling the epigenetic landscape of pulmonary arterial hypertension: implications for personalized medicine development.Journal of translational medicine · 2023Review
- Integrating epigenetics and metabolomics to advance treatments for pulmonary arterial hypertension.Biochemical pharmacology · 2022Review
- Differences in the expression of DNA methyltransferases and demethylases in leukocytes and the severity of pulmonary arterial hypertension between ethnic groups.Physiological reports · 2022Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
The loss of ten-eleven translocation (TET2) methylcytosine dioxygenase expression contributes to the pathobiology of pulmonary arterial hypertension (PAH). However, whether the expression and activity of other TETs and DNA methyltransferases (DNMTs) are altered in PAH remains enigmatic. Therefore, our objective was to determine the expression of DNMT (1, 3a, and 3b) and TET (1, 2, and 3) and their total activity. We assessed the expression of DNMT and TET enzymes in the leukocytes and their activity in extracellular vesicles (EVs). Expression of DNMT (1, 3a, and 3b), TET (2 and 3) in leukocytes, and total activity in EVs, from PAH patients was higher than in healthy controls. Additionally, we noticed there were difference in expression of these epigenetic enzyme based on ethnicity and found higher DNMT1 and lower TET2/TET3 expression in Caucasian than Hispanic/African American (combine) patients. Since loss-of-function mutation(s) and down-regulation of TET enzymes are associated with hematological malignancies and cytokine production, we determined the expression of genes that encode cytokines in samples of Caucasian and Hispanic/African American patients. Expression of IL6, CSF2, and CCL5 genes were higher in the leukocytes of Caucasian than Hispanic/African American patients, and CSF2 and CCL5 negatively correlated with the decreased expression of TET3. Interestingly, the expression of gene encoding CD34, a marker of myeloid and lymphoid precursor cells, and CD163, a monocyte/macrophage protein, was higher in the leukocytes of Caucasian than Hispanic/African American patients. Furthermore, Hispanic/African American patients having higher TET2/TET3 expression had higher pulmonary capillary wedge pressure. In conclusion, our results revealed higher DNMT1 and lower TET2/TET3 in Caucasian than Hispanic/African American patients together potentially augmented genes encoding inflammation causing cytokines, and CD34
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