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Urosevic I, Dokic M, Percic I, El Farra A, Bjelogrlic D, Sekulic B. Successful pregnancy outcome in a patient with myelofibrosis receiving ruxolitinib treatment in the first trimester. Leuk Lymphoma 2024; 65:1535-1537. [PMID: 38768438 DOI: 10.1080/10428194.2024.2355558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 05/10/2024] [Indexed: 05/22/2024]
Affiliation(s)
- Ivana Urosevic
- Clinical Center of Vojvodina, Clinic of Hematology, Novi Sad, Serbia
- Medical Faculty, Department of Internal Medicine, University of Novi Sad, Novi Sad
| | - Marina Dokic
- Clinical Center of Vojvodina, Clinic of Hematology, Novi Sad, Serbia
- Medical Faculty, Department of Internal Medicine, University of Novi Sad, Novi Sad
| | - Ivanka Percic
- Clinical Center of Vojvodina, Clinic of Hematology, Novi Sad, Serbia
- Medical Faculty, Department of Internal Medicine, University of Novi Sad, Novi Sad
| | - Amir El Farra
- Clinical Center of Vojvodina, Clinic of Hematology, Novi Sad, Serbia
- Medical Faculty, Department of Internal Medicine, University of Novi Sad, Novi Sad
| | - Dunja Bjelogrlic
- Clinical Center of Vojvodina, Clinic of Hematology, Novi Sad, Serbia
| | - Borivoj Sekulic
- Clinical Center of Vojvodina, Clinic of Hematology, Novi Sad, Serbia
- Medical Faculty, Department of Internal Medicine, University of Novi Sad, Novi Sad
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Lim CW, Hamanaka G, Liang AC, Chan SJ, Ling KH, Lo EH, Arai K, Cheah PS. In vitro cytotoxicity assessment of ruxolitinib on oligodendrocyte precursor cell and neural stem/progenitor cell populations. Neurotoxicology 2024; 105:10-20. [PMID: 39209271 DOI: 10.1016/j.neuro.2024.08.004] [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: 05/27/2024] [Revised: 07/23/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
JAK-STAT signaling cascade has emerged as an ideal target for the treatment of myeloproliferative diseases, autoimmune diseases, and neurological disorders. Ruxolitinib (Rux), is an orally bioavailable, potent and selective Janus-associated kinase (JAK) inhibitor, proven to be effective to target activated JAK-STAT pathway in the diseases previously described. Unfortunately, limited studies have investigated the potential cytotoxic profile of Rux on other cell populations within the heterogenous CNS microenvironment. Two stem and progenitor cell populations, namely the oligodendrocyte precursor cells (OPCs) and neural stem/progenitor cells (NSPCs), are important for long-term maintenance and post-injury recovery response of the CNS. In light of the limited evidence, this study sought to investigate further the effect of Rux on proliferating and differentiating OPCs and NSPCs populations. In the present study, cultured rat OPCs and NSPCs were treated with various concentrations of Rux, ranging from 2 μM to 20 μM. The effect of Rux on proliferating OPCs (PDGF-R-α+) and proliferating NSPCs (nestin+) was assessed via a 3-day Rux treatment, whereas its effect on differentiating OPCs (MBP+/PDGF-R-α+) and differentiating NSPCs (neurofilament+) was assessed after a 7-day treatment. Cytotoxicity of Rux was also assessed on OPC populations by examining its influence on cell death and DNA synthesis via YO-PRO-1/PI dual-staining and BrdU assay, respectively. The results suggest that Rux at a dosage above 10 μM reduces the number proliferating OPCs, likely via the induction of apoptosis. On the other hand, Rux treatment from 2.5 μM to 20 μM significantly reduces the number of differentiating OPCs by inducing necrosis. Meanwhile, Rux treatment has no observable untoward impact on NSPC cultures within the dosage range tested. Taken together, OPCs appears to be more vulnerable to the dosage effect of Rux, whereas NSPCs are not significantly impacted by Rux, suggesting a differential mechanism of actions of Rux on the cell types.
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Affiliation(s)
- Cheng-Wei Lim
- Department of Human Anatomy, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Gen Hamanaka
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Anna C Liang
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Su Jing Chan
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - King-Hwa Ling
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Malaysian Research Institute on Ageing (MyAgeing™), Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Eng H Lo
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Ken Arai
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA.
| | - Pike See Cheah
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA; Department of Human Anatomy, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Malaysian Research Institute on Ageing (MyAgeing™), Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
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Therapeutic opportunities for targeting cellular senescence in progressive multiple sclerosis. Curr Opin Pharmacol 2022; 63:102184. [DOI: 10.1016/j.coph.2022.102184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/13/2022] [Accepted: 01/15/2022] [Indexed: 11/22/2022]
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Sant'Antonio E, Borsani O, Camerini C, Botta C, Santoro M, Allegra A, Siragusa S. Philadelphia chromosome-negative myeloproliferative neoplasms in younger adults: A critical discussion of unmet medical needs, with a focus on pregnancy. Blood Rev 2021; 52:100903. [PMID: 34742614 DOI: 10.1016/j.blre.2021.100903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/23/2021] [Accepted: 10/27/2021] [Indexed: 11/02/2022]
Abstract
Myeloproliferative neoplasms (MPN) are traditionally regarded as a disease of older adults, though a not negligible fraction of cases occurs at a younger age, including women of childbearing potential. MPN in younger patients, indeed, offer several challenges for the clinical hematologist, that goes from difficulties in reaching a timely and accurate diagnosis to a peculiar thrombotic risk, with a relatively high incidence of thromboses in unusual sites (as the splanchnic veins or the cerebral ones). Moreover, the issue of pregnancy is recently gaining more attention as maternal age is rising and molecular screening are widely implemented, leading to a better recognition of these cases, both before and during pregnancy. In the present work we aim at discussing four clinical topic that we identified as areas of uncertainty or true unmet medical needs in the management of younger patients with MPN, with a particular focus on the topic of pregnancy. For each of these topics, we critically reviewed the available evidence that support treatment decisions, though acknowledging that recommendations in this field are mostly based on expert opinion or derived from guidelines of other clinical conditions that share with MPN a high vascular risk, as antiphospholipid syndrome. Taking into consideration both the lack of evidence-based data and the clinical heterogeneity of MPN, we support an individualized strategy of counseling and management for both young patients and for expectant mother with MPN.
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Affiliation(s)
| | - Oscar Borsani
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Chiara Camerini
- Division of Hematology, Azienda USL Toscana Nord Ovest, Ospedale San Luca, Lucca, Italy
| | - Cirino Botta
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Marco Santoro
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", University of Messina, Messina, Italy
| | - Sergio Siragusa
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
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