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Nassiri SM, Ahmadi Afshar N, Almasi P. Insight into microRNAs' involvement in hematopoiesis: current standing point of findings. Stem Cell Res Ther 2023; 14:282. [PMID: 37794439 PMCID: PMC10552299 DOI: 10.1186/s13287-023-03504-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 09/20/2023] [Indexed: 10/06/2023] Open
Abstract
Hematopoiesis is a complex process in which hematopoietic stem cells are differentiated into all mature blood cells (red blood cells, white blood cells, and platelets). Different microRNAs (miRNAs) involve in several steps of this process. Indeed, miRNAs are small single-stranded non-coding RNA molecules, which control gene expression by translational inhibition and mRNA destabilization. Previous studies have revealed that increased or decreased expression of some of these miRNAs by targeting several proto-oncogenes could inhibit or stimulate the myeloid and erythroid lineage commitment, proliferation, and differentiation. During the last decades, the development of molecular and bioinformatics techniques has led to a comprehensive understanding of the role of various miRNAs in hematopoiesis. The critical roles of miRNAs in cell processes such as the cell cycle, apoptosis, and differentiation have been confirmed as well. However, the main contribution of some miRNAs is still unclear. Therefore, it seems undeniable that future studies are required to focus on miRNA activities during various hematopoietic stages and hematological malignancy.
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Affiliation(s)
- Seyed Mahdi Nassiri
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Qarib St., Azadi Ave, Tehran, Iran.
| | - Neda Ahmadi Afshar
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Qarib St., Azadi Ave, Tehran, Iran
| | - Parsa Almasi
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Qarib St., Azadi Ave, Tehran, Iran
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Szilágyi B, Fejes Z, Rusznyák Á, Fenyvesi F, Pócsi M, Halmi S, Griger Z, Kunapuli SP, Kappelmayer J, Nagy B. Platelet Microparticles Enriched in miR-223 Reduce ICAM-1-Dependent Vascular Inflammation in Septic Conditions. Front Physiol 2021; 12:658524. [PMID: 34135769 PMCID: PMC8201999 DOI: 10.3389/fphys.2021.658524] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/21/2021] [Indexed: 12/19/2022] Open
Abstract
In the process of sepsis, activated platelets shed microvesicles containing microRNAs (miRNAs), which can be internalized by distinct recipient cells in circulation, consequently eliciting a potent capability to regulate their cellular functions in different diseases. In the present study, activated human platelets transferring miR-223 into endothelial cells via platelet-derived microparticles (PMPs) was investigated in vitro during septic conditions with a proposed mechanism involving in downregulation of the enhanced expression of intercellular adhesion molecule-1 (ICAM-1). The uptake of PMPs encasing miR-223 and the adhesion of peripheral blood mononuclear cells (PBMCs) on human coronary artery endothelial cells (HCAECs) were observed by immunofluorescence microscopy upon co-culture with PMPs isolated from sepsis or control plasma. The expression of miR-223-3p and its gene target ICAM1 in HCAECs were quantified by RT-qPCR and ELISA after the cells were incubated with septic or control PMPs, whose levels were induced with thrombin-receptor activating peptide (TRAP). Leukocyte-depleted platelets (LDPs) from septic patients showed a decreased miR-223 level, while septic plasma and PMPs revealed an elevated miRNA level compared to control samples. Similarly, TRAP-activated LDPs demonstrated a reduced intracellular miR-223 expression, while increased levels in the supernatant and PMP isolates were observed vs. untreated samples. Furthermore, TNF-α alone resulted in decreased miR-223 and elevated ICAM1 levels in HCAECs, while PMPs raised the miRNA level that was associated with downregulated ICAM1 expression at both mRNA and protein levels under TNF-α treatment. Importantly, miR-223 was turned out not to be newly synthesized as shown in unchanged pre-miR-223 level, and mature miR-223 expression was also elevated in the presence of PMPs in HCAECs after transfection with Dicer1 siRNA. In addition, septic PMPs containing miR-223 decreased ICAM1 with a reduction of PBMC binding to HCAECs. In conclusion, septic platelets released PMPs carrying functional miR-223 lower ICAM1 expression in endothelial cells, which may be a protective role against excessive sepsis-induced vascular inflammation.
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Affiliation(s)
- Bernadett Szilágyi
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Fejes
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ágnes Rusznyák
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary.,Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, Hungary
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary.,Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, Hungary
| | - Marianna Pócsi
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Sándor Halmi
- Faculty of Medicine, Institute of Internal Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Griger
- Faculty of Medicine, Institute of Internal Medicine, University of Debrecen, Debrecen, Hungary
| | - Satya P Kunapuli
- Department of Physiology and Sol Sherry Thrombosis Center, Temple University School of Medicine, Philadelphia, PA, United States
| | - János Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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