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Inflammatory Cytokine Profiles Do Not Differ Between Patients With Idiopathic Cytopenias of Undetermined Significance and Myelodysplastic Syndromes. Hemasphere 2022; 6:e0713. [PMID: 35495296 PMCID: PMC9038488 DOI: 10.1097/hs9.0000000000000713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 03/18/2022] [Indexed: 02/03/2023] Open
Abstract
Immune dysregulation has been highlighted as a key player in the pathogenesis of myelodysplastic syndromes (MDS), but little is known about cytokine profiles in patients with unexplained cytopenia with or without mutations in MDS-associated genes (clonal cytopenias of undetermined significance [CCUS] and idiopathic cytopenias of undetermined significance [ICUS], respectively), which often precede MDS. Here, we study the cytokine profiles in 111 patients with ICUS (N = 41), CCUS (N = 30), lower-risk MDS (LR-MDS; N = 22) and higher-risk MDS (HR-MDS; N = 18), and in healthy elderly controls (N = 21). Twenty cytokines were examined in blood plasma at time of diagnosis using Luminex assays and enzyme linked immunosorbent assays. The cytokine levels were compared between patient groups, and in patients versus controls. Associations between cytokines and MDS-associated mutations were evaluated. An aberrant cytokine profile was observed in all patient groups relative to healthy elderly controls. Patients had significantly higher levels of IL-6 (P< 0 .001), tumor necrosis factor α (P < 0.001), IL-10 (P < 0.001), and C-X-C motif chemokine 10 (P < 0.001) and lower levels of transforming growth factor beta 1 (P < 0.001), CCL5/regulated on activation normal T-cell expressed and secreted (P < 0.001), and S100A4 (P < 0.001) compared with healthy controls. Survival was significantly shorter in CCUS and MDS patients with a high systemic inflammatory cytokine load (median overall survival [OS] 21 months) compared with those with low-moderate systemic inflammatory cytokine load (median OS 64 months; P < 0.0001). These data suggest that patients with ICUS and CCUS have cytokine levels as abnormal as in LR-MDS. Indeed, high cytokine levels are present before MDS is diagnosed and cytokine levels are elevated irrespective of the presence or size of the myeloid clones. Cytokines may have a prognostic impact at a very early premalignant stage of myeloid disorders.
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Ruan Y, Li H, Cao X, Meng S, Jia R, Pu L, Fu H, Jin Z. Inhibition of the lncRNA DANCR attenuates cardiomyocyte injury induced by oxygen-glucose deprivation via the miR-19a-3p/MAPK1 axis. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1377-1386. [PMID: 34515297 DOI: 10.1093/abbs/gmab110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 08/03/2021] [Accepted: 08/11/2021] [Indexed: 02/07/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) have been considered as crucial regulators of acute myocardial infarction (AMI). In this study, to analyze the effect of differentiation antagonizing nonprotein coding RNA (DANCR) of lncRNA on cardiomyocyte damage in AMI, cardiomyocyte injury was induced by oxygen-glucose deprivation (OGD). Cell counting kit-8 (CCK-8) assay and flow cytometry were used to assess cell viability and apoptosis, respectively. Quantitative real-time PCR was used to measure the expression levels of DANCR and miR-19a-3p. Bioinformatics analysis and luciferase gene reporter assay were utilized to explore the relationship among DANCR, miR-19a-3p, and mitogen-activated protein kinase 1 (MAPK1). CCK-8 and TUNEL assays were used to explore the effects of DANCR alone or plus miR-19a-3p on the viability and apoptosis of OGD/R-exposed HL-1 cells. Western blot analysis was used to detect changes in the MAPK1/ERK1/2 pathway in HL-1 cells. We found that DANCR expression and miR-19a-3p level are negatively correlated as DANCR expression is increased, while miR-19a-3p level is decreased in AMI patients' serum and OGD/R-exposed HL-1 cells. DANCR knockdown increased miR-19a-3p level, and miR-19a-3p inhibition increased DANCR expression. Moreover, DANCR directly binds to miR-19a-3p. DANCR knockdown reduced viability but induced apoptosis in OGD/R-exposed HL-1 cells, while miR-19a-3p inhibition weakens these effects. Furthermore, MAPK1 is a target of miR-19a-3p. miR-19a-3p overexpression decreases MAPK1 and ERK1/2 in HL-1 cells, while miR-19a-3p inhibition increases MAPK1 and ERK1/2 in HL-1 cells. Moreover, DANCR knockdown reduces myocardium apoptosis in mice with the left anterior descending artery ligated. DANCR knockdown effectively restores myocardial cell apoptosis by regulating the miR-19a-3p/MAPK1/ERK1/2 axis.
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Affiliation(s)
- Yang Ruan
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Hong Li
- Ward Three, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Xiaojing Cao
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Shuai Meng
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Ruofei Jia
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Lianmei Pu
- Department of Emergency Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Hao Fu
- Department of Emergency Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Zening Jin
- Department of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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Hormaechea-Agulla D, Matatall KA, Le DT, Kain B, Long X, Kus P, Jaksik R, Challen GA, Kimmel M, King KY. Chronic infection drives Dnmt3a-loss-of-function clonal hematopoiesis via IFNγ signaling. Cell Stem Cell 2021; 28:1428-1442.e6. [PMID: 33743191 PMCID: PMC8349829 DOI: 10.1016/j.stem.2021.03.002] [Citation(s) in RCA: 159] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 01/08/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023]
Abstract
Age-related clonal hematopoiesis (CH) is a risk factor for malignancy, cardiovascular disease, and all-cause mortality. Somatic mutations in DNMT3A are drivers of CH, but decades may elapse between the acquisition of a mutation and CH, suggesting that environmental factors contribute to clonal expansion. We tested whether infection provides selective pressure favoring the expansion of Dnmt3a mutant hematopoietic stem cells (HSCs) in mouse chimeras. We created Dnmt3a-mosaic mice by transplanting Dnmt3a-/- and WT HSCs into WT mice and observed the substantial expansion of Dnmt3a-/- HSCs during chronic mycobacterial infection. Injection of recombinant IFNγ alone was sufficient to phenocopy CH by Dnmt3a-/- HSCs upon infection. Transcriptional and epigenetic profiling and functional studies indicate reduced differentiation associated with widespread methylation alterations, and reduced secondary stress-induced apoptosis accounts for Dnmt3a-/- clonal expansion during infection. DNMT3A mutant human HSCs similarly exhibit defective IFNγ-induced differentiation. We thus demonstrate that IFNγ signaling induced during chronic infection can drive DNMT3A-loss-of-function CH.
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Affiliation(s)
- Daniel Hormaechea-Agulla
- Department of Pediatrics, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX 77030, USA
| | - Katie A Matatall
- Department of Pediatrics, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX 77030, USA
| | - Duy T Le
- Program in Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bailee Kain
- Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xiaochen Long
- Department of Statistics, Rice University, Houston, TX 77030, USA
| | - Pawel Kus
- Department of Systems Biology and Engineering and Biotechnology Centre, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Roman Jaksik
- Department of Systems Biology and Engineering and Biotechnology Centre, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Grant A Challen
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Marek Kimmel
- Department of Statistics, Rice University, Houston, TX 77030, USA; Department of Systems Biology and Engineering and Biotechnology Centre, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Katherine Y King
- Department of Pediatrics, Section of Infectious Diseases, Baylor College of Medicine, Houston, TX 77030, USA; Program in Immunology, Baylor College of Medicine, Houston, TX 77030, USA; Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA.
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Contribution Value of Akt, c-Myc, CIP2A, and PP2A Genes Expression in Leukemogenesis: A Bright Perspective on the Molecular Pattern of Patients with Acute Myeloid Leukemia (AML). INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2020. [DOI: 10.5812/ijcm.100223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Selheim F. Targeted and Immune-Based Therapies for Acute Myeloid Leukemia: Inflammatory Signaling and Multiple Post-Translational Modifications. Curr Med Chem 2019; 26:5242-5243. [DOI: 10.2174/092986732628191025094205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Frode Selheim
- The Proteomics Unit at the University of Bergen Department of Biomedicine The University of Bergen Jonas Lies vei 91 5009 Bergen, Norway
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Zhang N, Chen Y, Shen Y, Lou S, Deng J. Comprehensive analysis the potential biomarkers for the high-risk of childhood acute myeloid leukemia based on a competing endogenous RNA network. Blood Cells Mol Dis 2019; 79:102352. [PMID: 31404908 DOI: 10.1016/j.bcmd.2019.102352] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 08/01/2019] [Indexed: 01/13/2023]
Abstract
Acute myeloid leukemia (AML) is a common form of hematological malignancies, the discovery of non-coding RNA (ncRNA) plays an important role in diverse biological processes including hematopoietic differentiation and proliferation. However, the interaction mechanism of key RNAs and their regulatory network in childhood AML are still to be elucidated. RNA profiles were downloaded from the Therapeutically Applicable Research to Generate Effective Treatment (TARGET) database and identified specific lncRNAs, miRNAs, and mRNAs in high-risk group of childhood AML. A lncRNA-mRNA-miRNA ceRNA network in childhood AML was constructed. A total of 2064 mRNAs, 615 lncRNAs, and 60 miRNAs were identified as significantly differentially expressed, and 13 lncRNAs, 7 miRNAs, and 67 mRNAs were incorporated in the ceRNA network. Functional analysis showed that these DEmRNAs were significantly enriched in Ras signaling pathway, TGF-beta signaling pathway, and other tumor-related pathways. Among the network, 10 RNAs (LINC00471, hsa-mir-100, hsa-mir-150, ANP32E, ERMP1, MYO1B, PAPD7, PTGIS, TERF1, and VEGFA) was associated with high-risk group of childhood AML and functions were significant for prognosis. Then, these findings together provide a new insight into the pathogenesis of high-risk group of childhood AML that can assist clinicians clarify the function of lncRNA to guide the treatment and in-depth study.
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Affiliation(s)
- Nan Zhang
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing 400010, PR China
| | - Ying Chen
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing 400010, PR China
| | - Yan Shen
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing 400010, PR China
| | - Shifeng Lou
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing 400010, PR China
| | - Jianchuan Deng
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing 400010, PR China.
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