ArticleFrontiers in immunology2021
Tryptase Regulates the Epigenetic Modification of Core Histones in Mast Cell Leukemia Cells.
Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 17 citations in OpenAlex.
- Mast cell-driven remodeling of pulmonary immune and stromal landscapes in COVID-19.Scientific reports · 2026Article
- Epigenetic alterations in Myeloid Malignancies.Advances in experimental medicine and biology · 2026Review
- Article
- Loss of ADAM15 prevents necroptosis induction by partial RIPK1 degradation due to enhanced TNF-R1 surface expression and basal caspase-8 activation.Cell communication and signaling : CCS · 2025Article
- The Role of Mast Cells in the Remodeling Effects of Molecular Hydrogen on the Lung Local Tissue Microenvironment under Simulated Pulmonary Hypertension.International journal of molecular sciences · 2024Article
- Review
- Potential Role of Moesin in Regulating Mast Cell Secretion.International journal of molecular sciences · 2023Review
- Mast Cells as a Potential Target of Molecular Hydrogen in Regulating the Local Tissue Microenvironment.Pharmaceuticals (Basel, Switzerland) · 2023Review
- Mast Cell Tryptase and Carboxypeptidase A3 in the Formation of Ovarian Endometrioid Cysts.International journal of molecular sciences · 2023Article
- Sodium butyrate supresses malignant human mast cell proliferation, downregulates expression of KIT and promotes differentiation.Frontiers in allergy · 2023Article
- Review
- Renal Mast Cell-Specific Proteases in the Pathogenesis of Tubulointerstitial Fibrosis.The journal of histochemistry and cytochemistry : official journal of the Histochemistry SocietyArticle
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mast cells are immune cells that store large amounts of mast cell-restricted proteases in their secretory granules, including tryptase, chymase and carboxypeptidase A3. In mouse mast cells, it has been shown that tryptase, in addition to its canonical location in secretory granules, can be found in the nuclear compartment where it can impact on core histones. Here we asked whether tryptase can execute core histone processing in human mast cell leukemia cells, and whether tryptase thereby can affect the epigenetic modification of core histones. Our findings reveal that triggering of cell death in HMC-1 mast cell leukemia cells is associated with extensive cleavage of core histone 3 (H3) and more restricted cleavage of H2B. Tryptase inhibition caused a complete blockade of such processing. Our data also show that HMC-1 cell death was associated with a major reduction of several epigenetic histone marks, including H3 lysine-4-mono-methylation (H3K4me1), H3K9me2, H3 serine-10-phosphorylation (H3S10p) and H2B lysine-16-acetylation (H2BK16ac), and that tryptase inhibition reverses the effect of cell death on these epigenetic marks. Further, we show that tryptase is present in the nucleus of both viable and dying mast cell leukemia cells. In line with a role for tryptase in regulating nuclear events, tryptase inhibition caused increased proliferation of the mast cell leukemia cells. Altogether, the present study emphasizes a novel principle for how epigenetic modification of core histones is regulated, and provides novel insight into the biological function of human mast cell tryptase.
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