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Basak J, Piotrzkowska D, Kucharska-Lusina A, Majsterek I. Association between the Cytosine Hydroxymethylation and the Expression of microRNA in Multiple Sclerosis in Polish Population. Int J Mol Sci 2023; 24:13923. [PMID: 37762229 PMCID: PMC10531266 DOI: 10.3390/ijms241813923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Multiple sclerosis is a chronic demyelinating disorder with an unclear etiology. A key role is thought to be played by Th17 cells and microRNAs associated with Th17, such as miR-155, miR-326 and miR-223. The present study compared the methylation and hydroxymethylation levels of CpG sites within promoters of these microRNA between MS patients and controls using PBMCs and analyzed their relationship with microRNA expression. Significant intergroup differences were found between the levels of 5-hmC within the CpG-1 miR-155 promoter and CpG within the miR-326 promoter; in addition, miR-155-5p and miR-223-3p expression was elevated in MS patients. Correlation analysis showed a positive relationship between the level of 5-hmC of CpG-2 in the miR-223 promoter and miR-223-3p level. As it is possible to pharmacologically modulate the level of epigenetic modifications, our findings cast light on the etiology of MS and support the development of more effective therapies.
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Affiliation(s)
| | | | | | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Mazowiecka 5, 92-215 Lodz, Poland (A.K.-L.)
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2
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Abballe L, Alfano V, Antonacci C, Cefalo MG, Cacchione A, Del Baldo G, Pezzullo M, Po A, Moretti M, Mastronuzzi A, De Smaele E, Ferretti E, Locatelli F, Miele E. β-arrestin1-E2F1-ac axis regulates physiological apoptosis and cell cycle exit in cellular models of early postnatal cerebellum. Front Cell Dev Biol 2023; 11:990711. [PMID: 36923256 PMCID: PMC10010392 DOI: 10.3389/fcell.2023.990711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 02/17/2023] [Indexed: 03/01/2023] Open
Abstract
Development of the cerebellum is characterized by rapid proliferation of cerebellar granule cell precursors (GCPs) induced by paracrine stimulation of Sonic hedgehog (Shh) signaling from Purkinje cells, in the external granular layer (EGL). Then, granule cell precursors differentiate and migrate into the inner granular layer (IGL) of the cerebellum to form a terminally differentiated cell compartment. Aberrant activation of Sonic hedgehog signaling leads to granule cell precursors hyperproliferation and the onset of Sonic hedgehog medulloblastoma (MB), the most common embryonal brain tumor. β-arrestin1 (ARRB1) protein plays an important role downstream of Smoothened, a component of the Sonic hedgehog pathway. In the medulloblastoma context, β-arrestin1 is involved in a regulatory axis in association with the acetyltransferase P300, leading to the acetylated form of the transcription factor E2F1 (E2F1-ac) and redirecting its activity toward pro-apoptotic gene targets. This axis in the granule cell precursors physiological context has not been investigated yet. In this study, we demonstrate that β-arrestin1 has antiproliferative and pro-apoptotic functions in cerebellar development. β-arrestin1 silencing increases proliferation of Sonic hedgehog treated-cerebellar precursor cells while decreases the transcription of E2F1-ac pro-apoptotic targets genes, thus impairing apoptosis. Indeed, chromatin immunoprecipitation experiments show a direct interaction between β-arrestin1 and the promoter regions of the pro-apoptotic E2F1 target gene and P27, indicating the double role of β-arrestin1 in controlling apoptosis and cell cycle exit in a physiological context. Our data elucidate the role of β-arrestin1 in the early postnatal stages of cerebellar development, in those cell compartments that give rise to medulloblastoma. This series of experiments suggests that the physiological function of β-arrestin1 in neuronal progenitors is to directly control, cooperating with E2F1 acetylated form, transcription of pro-apoptotic genes.
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Affiliation(s)
- Luana Abballe
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Vincenzo Alfano
- Cancer Research Center of Lyon (CRCL), UMR Inserm U1052/CNRS 5286, Lyon, France
| | - Celeste Antonacci
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Maria Giuseppina Cefalo
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Antonella Cacchione
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Giada Del Baldo
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Marco Pezzullo
- Pathology Unit, Core Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Agnese Po
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Marta Moretti
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Angela Mastronuzzi
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Enrico De Smaele
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | | | - Franco Locatelli
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy.,Department of Gynecology/Obstetrics and Paediatrics, Sapienza University, Rome, Italy
| | - Evelina Miele
- Department of Pediatric Hematology/Oncology and Cellular and Gene Therapy, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
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3
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Miele E, Po A, Mastronuzzi A, Carai A, Besharat ZM, Pediconi N, Abballe L, Catanzaro G, Sabato C, De Smaele E, Canettieri G, Di Marcotullio L, Vacca A, Mai A, Levrero M, Pfister SM, Kool M, Giangaspero F, Locatelli F, Ferretti E. Downregulation of miR-326 and its host gene β-arrestin1 induces pro-survival activity of E2F1 and promotes medulloblastoma growth. Mol Oncol 2020; 15:523-542. [PMID: 32920979 PMCID: PMC7858128 DOI: 10.1002/1878-0261.12800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/17/2020] [Accepted: 09/07/2020] [Indexed: 01/01/2023] Open
Abstract
Persistent mortality rates of medulloblastoma (MB) and severe side effects of the current therapies require the definition of the molecular mechanisms that contribute to tumor progression. Using cultured MB cancer stem cells and xenograft tumors generated in mice, we show that low expression of miR-326 and its host gene β-arrestin1 (ARRB1) promotes tumor growth enhancing the E2F1 pro-survival function. Our models revealed that miR-326 and ARRB1 are controlled by a bivalent domain, since the H3K27me3 repressive mark is found at their regulatory region together with the activation-associated H3K4me3 mark. High levels of EZH2, a feature of MB, are responsible for the presence of H3K27me3. Ectopic expression of miR-326 and ARRB1 provides hints into how their low levels regulate E2F1 activity. MiR-326 targets E2F1 mRNA, thereby reducing its protein levels; ARRB1, triggering E2F1 acetylation, reverses its function into pro-apoptotic activity. Similar to miR-326 and ARRB1 overexpression, we also show that EZH2 inhibition restores miR-326/ARRB1 expression, limiting E2F1 pro-proliferative activity. Our results reveal a new regulatory molecular axis critical for MB progression.
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Affiliation(s)
- Evelina Miele
- Department of Pediatric Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Agnese Po
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Angela Mastronuzzi
- Department of Pediatric Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Andrea Carai
- Neurosurgery Unit, Department of Neurological and Psychiatric Sciences, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Natalia Pediconi
- Center for Life NanoScience@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Luana Abballe
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | | | - Claudia Sabato
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Enrico De Smaele
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | | | | | - Alessandra Vacca
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Antonello Mai
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, Italy
| | - Massimo Levrero
- Cancer Research Center of Lyon (CRCL), UMR Inserm 1052 CNRS 5286 Mixte CLB, Université de Lyon 1 (UCBL1), France.,Department of Internal Medicine and Medical Specialties, Sapienza University, Rome, Italy
| | - Stefan M Pfister
- Division of Pediatric Neurooncology, German Cancer Research Center DKFZ, Heidelberg, Germany.,Department of Pediatric Oncology, Hematology and Immunology, University Hospital, Heidelberg, Germany.,Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
| | - Marcel Kool
- Division of Pediatric Neurooncology, German Cancer Research Center DKFZ, Heidelberg, Germany.,Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
| | - Felice Giangaspero
- Department of Radiological, Oncological and Pathological Science, Sapienza University, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - Franco Locatelli
- Department of Pediatric Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Maternal Infantile and Urological Sciences, Sapienza University, Rome, Italy
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Loss of miR-107, miR-181c and miR-29a-3p Promote Activation of Notch2 Signaling in Pediatric High-Grade Gliomas (pHGGs). Int J Mol Sci 2017; 18:ijms18122742. [PMID: 29258209 PMCID: PMC5751342 DOI: 10.3390/ijms18122742] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/11/2017] [Accepted: 12/13/2017] [Indexed: 01/21/2023] Open
Abstract
The mechanisms by which microRNAs control pediatric high-grade gliomas (pHGGs) have yet to be fully elucidated. Our studies of patient-derived pHGG tissues and of the pHGG cell line KNS42 revealed down-regulation in these tumors of three microRNAs, specifically miR-107, miR-181c, and miR-29a-3p. This down-regulation increases the proliferation of KNS42 cells by de-repressing expression of the Notch2 receptor (Notch2), a validated target of miR-107 and miR-181c and a putative target of miR-29a-3p. Inhibition (either pharmacologic or genetic) of Notch2 or re-expression of the implicated microRNAs (all three combined but also individually) significantly reduced KNS42 cell proliferation. These findings suggest that Notch2 pathway activation plays a critical role in pHGGs growth and reveal a direct epigenetic mechanism that controls Notch2 expression, which could potentially be targeted by novel forms of therapy for these childhood tumors characterized by high-morbidity and high-mortality.
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