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Pokharel B, Ravikumar Y, Rathinavel L, Chewonarin T, Pongpom M, Tipsuwan W, Koonyosying P, Srichairatanakool S. The Discovery of Selective Protein Arginine Methyltransferase 5 Inhibitors in the Management of β-Thalassemia through Computational Methods. Molecules 2024; 29:2662. [PMID: 38893537 PMCID: PMC11173459 DOI: 10.3390/molecules29112662] [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: 04/03/2024] [Revised: 05/01/2024] [Accepted: 05/07/2024] [Indexed: 06/21/2024] Open
Abstract
β-Thalassemia is an inherited genetic disorder associated with β-globin chain synthesis, which ultimately becomes anemia. Adenosine-2,3-dialdehyde, by inhibiting arginine methyl transferase 5 (PRMT5), can induce fetal hemoglobin (HbF) levels. Hence, the materialization of PRMT5 inhibitors is considered a promising therapy in the management of β-thalassemia. This study conducted a virtual screening of certain compounds similar to 5'-deoxy-5'methyladenosine (3XV) using the PubChem database. The top 10 compounds were chosen based on the best docking scores, while their interactions with the PRMT5 active site were analyzed. Further, the top two compounds demonstrating the lowest binding energy were subjected to drug-likeness analysis and pharmacokinetic property predictions, followed by molecular dynamics simulation studies. Based on the molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) score and molecular interactions, (3R,4S)-2-(6-aminopurin-9-yl)-5-[(4-ethylcyclohexyl)sulfanylmethyl]oxolane-3,4-diol (TOP1) and 2-(6-Aminopurin-9-yl)-5-[(6-aminopurin-9-yl)methylsulfanylmethyl]oxolane-3,4-diol (TOP2) were identified as potential hit compounds, while TOP1 exhibited higher binding affinity and stabler binding capabilities than TOP2 during molecular dynamics simulation (MDS) analysis. Taken together, the outcomes of our study could aid researchers in identifying promising PRMT5 inhibitors. Moreover, further investigations through in vivo and in vitro experiments would unquestionably confirm that this compound could be employed as a therapeutic drug in the management of β-thalassemia.
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Affiliation(s)
- Bishant Pokharel
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.P.); (Y.R.); (T.C.); (P.K.)
| | - Yuvaraj Ravikumar
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.P.); (Y.R.); (T.C.); (P.K.)
| | | | - Teera Chewonarin
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.P.); (Y.R.); (T.C.); (P.K.)
| | - Monsicha Pongpom
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Wachiraporn Tipsuwan
- Division of Biochemistry, School of Medical Science, University of Phayao, Phayao 5600, Thailand;
| | - Pimpisid Koonyosying
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.P.); (Y.R.); (T.C.); (P.K.)
| | - Somdet Srichairatanakool
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (B.P.); (Y.R.); (T.C.); (P.K.)
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Pontikoglou CG, Matheakakis A, Papadaki HA. The mesenchymal compartment in myelodysplastic syndrome: Its role in the pathogenesis of the disorder and its therapeutic targeting. Front Oncol 2023; 13:1102495. [PMID: 36761941 PMCID: PMC9907728 DOI: 10.3389/fonc.2023.1102495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/06/2023] [Indexed: 01/26/2023] Open
Abstract
Myelodysplastic syndromes include a broad spectrum of malignant myeloid disorders that are characterized by dysplastic ineffective hematopoiesis, reduced peripheral blood cells counts and a high risk of progression to acute myeloid leukemia. The disease arises primarily because of accumulating chromosomal, genetic and epigenetic changes as well as immune-mediated alterations of the hematopoietic stem cells (HSCs). However, mounting evidence suggests that aberrations within the bone marrow microenvironment critically contribute to myelodysplastic syndrome (MDS) initiation and evolution by providing permissive cues that enable the abnormal HSCs to grow and eventually establish and propagate the disease. Mesenchymal stromal cells (MSCs) are crucial elements of the bone marrow microenvironment that play a key role in the regulation of HSCs by providing appropriate signals via soluble factors and cell contact interactions. Given their hematopoiesis supporting capacity, it has been reasonable to investigate MSCs' potential involvement in MDS. This review discusses this issue by summarizing existing findings obtained by in vitro studies and murine disease models of MDS. Furthermore, the theoretical background of targeting the BM-MSCs in MDS is outlined and available therapeutic modalities are described.
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Affiliation(s)
- Charalampos G. Pontikoglou
- Department of Hematology, School of Medicine, University of Crete, Heraklion, Greece,Haemopoiesis Research Laboratory, School of Medicine, University of Crete, Heraklion, Greece,*Correspondence: Charalampos G. Pontikoglou,
| | - Angelos Matheakakis
- Department of Hematology, School of Medicine, University of Crete, Heraklion, Greece,Haemopoiesis Research Laboratory, School of Medicine, University of Crete, Heraklion, Greece
| | - Helen A. Papadaki
- Department of Hematology, School of Medicine, University of Crete, Heraklion, Greece,Haemopoiesis Research Laboratory, School of Medicine, University of Crete, Heraklion, Greece
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Rozema J, van Asten I, Kwant B, Kibbelaar RE, Veeger NJGM, de Wit H, van Roon EN, Hoogendoorn M. Clinical view versus guideline adherence in ferritin monitoring and initiating iron chelation therapy in patients with myelodysplastic syndromes. Eur J Haematol Suppl 2022; 109:772-778. [PMID: 36130872 PMCID: PMC9828450 DOI: 10.1111/ejh.13865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/03/2022] [Accepted: 09/08/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVES In patients with myelodysplastic syndromes (MDS) with >20 transfusions and ferritin levels >1000 μg/L, international guidelines recommend iron chelation therapy (ICT). The study's objective was to determine guideline adherence and the intensity of ferritin monitoring in clinical practice. METHODS We performed an observational population-based study using the HemoBase Registry, which contains data of all MDS patients diagnosed since 2005 in Friesland, the Netherlands. Clinical information on transfusions, ferritin measurements, ICT, and clinical performance as defined by age ≤ 80 years, Charlson Comorbidity Index <2 and lower-risk MDS was collected from health records. RESULTS Two hundred and thirty seven of 292 patients (81.1%) received ≥1 transfusion, and 121 (41.4%) received >20 transfusions. In 57 of these 121 patients (47.1%), ferritin measurements were performed at least once. Clinical performance was significantly associated with monitoring ferritin around the 20th transfusion (RR: 2.49, p = .016). Clinical performance was also associated with initiating ICT (RR: 5.99, p < .001). ICT was offered to 22.3% (n = 25) of eligible patients. CONCLUSIONS In this population-based study, ferritin levels were measured in <50% of MDS patients who received >20 transfusions, and clinical performance was significantly associated with measuring ferritin. Our study suggests that in heavily transfused MDS patients, ferritin monitoring is primarily based on patients' clinical performance rather than guideline recommendations.
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Affiliation(s)
- Johanne Rozema
- Unit of Pharmacotherapy, Epidemiology and Economics, Department of PharmacyUniversity of GroningenGroningenThe Netherlands,Department of Clinical Pharmacy & PharmacologyMedical Centre LeeuwardenLeeuwardenThe Netherlands
| | - Ivar van Asten
- Certe Medical Diagnostics & Advicelocation Medical Centre LeeuwardenLeeuwardenThe Netherlands
| | - Beau Kwant
- Unit of Pharmacotherapy, Epidemiology and Economics, Department of PharmacyUniversity of GroningenGroningenThe Netherlands
| | | | - Nic J. G. M. Veeger
- MCL Academy, Medical Centre LeeuwardenLeeuwardenThe Netherlands,Department of EpidemiologyUniversity of Groningen, University Medical Centre GroningenGroningenThe Netherlands
| | - Harry de Wit
- Certe Medical Diagnostics & Advicelocation Medical Centre LeeuwardenLeeuwardenThe Netherlands
| | - Eric N. van Roon
- Unit of Pharmacotherapy, Epidemiology and Economics, Department of PharmacyUniversity of GroningenGroningenThe Netherlands,Department of Clinical Pharmacy & PharmacologyMedical Centre LeeuwardenLeeuwardenThe Netherlands
| | - Mels Hoogendoorn
- Department of Internal MedicineMedical Centre LeeuwardenLeeuwardenThe Netherlands
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Finelli C, Parisi S, Paolini S. Exploring the rationale for red cell transfusion in myelodysplastic syndrome patients: emerging data and future insights. Expert Rev Hematol 2022; 15:411-421. [PMID: 35549626 DOI: 10.1080/17474086.2022.2077721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
INTRODUCTION Anemia is often present in mostly elderly patients with myelodysplastic syndromes (MDS), and is associated with a poorer outcome. Although Red blood cell (RBC) transfusions are the most immediate treatment, waiting for the response to disease-specific therapy, or in case of non-response, the choice of the optimal transfusion regimen is still controversial. AREAS COVERED The main objectives of RBC transfusion are the control of anemia-related symptoms and complications and the improvement of functional status and of health-related quality of life (HRQoL). However, RBC transfusions are associated with several negative clinical consequences, mainly adverse transfusion reactions and iron overload, which can be counteracted by iron chelation therapy. Recent few pilot prospective trials have shown a benefit, in terms of HRQoL, of more liberal transfusion regimens, with higher haemoglobin (Hb) targets, compared to conventional restrictive regimens, but these results need confirmation by larger studies. EXPERT OPINION : A patient-oriented RBC transfusion therapy in MDS patients must take into account several laboratory (Hb), clinical (age, comorbidities), psychological, family and social factors, and evaluation of HRQoL should become a fundamental parameter in assessing the clinical benefit of therapy. Many questions remain to be clarified, including why some patients report little benefit from transfusions.
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Affiliation(s)
- Carlo Finelli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Sarah Parisi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Stefania Paolini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia "Seràgnoli", Bologna, Italy
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Granata V, Crisafulli L, Nastasi C, Ficara F, Sobacchi C. Bone Marrow Niches and Tumour Cells: Lights and Shadows of a Mutual Relationship. Front Immunol 2022; 13:884024. [PMID: 35603212 PMCID: PMC9121377 DOI: 10.3389/fimmu.2022.884024] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/12/2022] [Indexed: 12/23/2022] Open
Abstract
The bone marrow (BM) niche is the spatial structure within the intra-trabecular spaces of spongious bones and of the cavity of long bones where adult haematopoietic stem cells (HSCs) maintain their undifferentiated and cellular self-renewal state through the intervention of vascular and nervous networks, metabolic pathways, transcriptional and epigenetic regulators, and humoral signals. Within the niche, HSCs interact with various cell types such as osteoblasts, endothelial cells, macrophages, and mesenchymal stromal cells (MSCs), which maintain HSCs in a quiescent state or sustain their proliferation, differentiation, and trafficking, depending on body needs. In physiological conditions, the BM niche permits the daily production of all the blood and immune cells and their admittance/ingress/progression into the bloodstream. However, disruption of this delicate microenvironment promotes the initiation and progression of malignancies such as those included in the spectrum of myeloid neoplasms, also favouring resistance to pharmacological therapies. Alterations in the MSC population and in the crosstalk with HSCs owing to tumour-derived factors contribute to the formation of a malignant niche. On the other hand, cells of the BM microenvironment cooperate in creating a unique milieu favouring metastasization of distant tumours into the bone. In this framework, the pro-tumorigenic role of MSCs is well-documented, and few evidence suggest also an anti-tumorigenic effect. Here we will review recent advances regarding the BM niche composition and functionality in normal and in malignant conditions, as well as the therapeutic implications of the interplay between its diverse cellular components and malignant cells.
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Affiliation(s)
- Valentina Granata
- IRCCS Humanitas Research Hospital, Milan, Italy
- Milan Unit, CNR-IRGB, Milan, Italy
| | - Laura Crisafulli
- IRCCS Humanitas Research Hospital, Milan, Italy
- Milan Unit, CNR-IRGB, Milan, Italy
| | - Claudia Nastasi
- Laboratory of Cancer Pharmacology, Department of Oncology, IRCCS Mario Negri Pharmacological Research Institute, Milan, Italy
| | - Francesca Ficara
- IRCCS Humanitas Research Hospital, Milan, Italy
- Milan Unit, CNR-IRGB, Milan, Italy
| | - Cristina Sobacchi
- IRCCS Humanitas Research Hospital, Milan, Italy
- Milan Unit, CNR-IRGB, Milan, Italy
- *Correspondence: Cristina Sobacchi,
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