Interferon-beta-1a: therapeutic effects, tolerability, current and future status in multiple sclerosis

Author(s):  
Per Soelberg Sørensen
Author(s):  
Hazal Gezmis ◽  
Tansu Doran ◽  
Saime Fusun Mayda Domac ◽  
Deniz Yucel ◽  
Rahsan Karaci ◽  
...  

Aim of the Study: Multiple sclerosis (MS) is an autoimmune disorder causing demyelination in axons. Available therapies target different molecules, but not all have therapeutic effects on disease progression, and this effect can only be seen after a long-time administration. Interferon beta (IFN-β), an MS therapy for many years, slows down the disease progression and reduces disease symptoms by targeting T cells. Yet, a considerable portion of the patient has experienced no therapeutic response to IFN-β. It is necessary to determine disease-specific biomarkers which allow early diagnosis or treatment of MS. Here, it was aimed to determine the effects of interleukin 10 (IL10) and 23 (IL23A) as well as forkhead box P3 (FOXP3) genes on MS after IFN-β therapy. Materials & Methods: Peripheral blood mononuclear cells (PBMCs) were extracted to isolate CD4+ and CD25+ T cells. Cytotoxicity assays were performed on each cell type for determining optimum drug concentration. Then, cells were cultured and determined drug concentration was administered to the cells to measure gene expressions with RT-PCR. Results: It was found that the cytotoxic effect of IFN-β was more efficient as the exposure time was expanded regardless of drug concentration. Moreover, CD25+ T lymphocytes were more resistant to IFN-β. IL23A was down-regulated, whereas FOXP3 was up-regulated at 48h in CD4+ T cells. For CD25+ T cells, the graded increase of FOXP3 was obtained while IL10 expression was gradually decreased throughout the drug intake, significantly. Conclusion: Although considerable change in expression was obtained, the long-term IFN-β effect on both genes and cells should be determined by follow-up at least a year. Keywords: MS, IFN-β, IL23A, FOXP3, IL10, T cells


2017 ◽  
Vol 18 (3) ◽  
pp. 227-230
Author(s):  
Gordana Toncev ◽  
Katarina Vesic ◽  
Dejan Aleksic ◽  
Snežana Lazarevic

Abstract Interferon beta is a safe and efficacious treatment for relapsing multiple sclerosis (MS). However, there is some evidence that uric acid, a scavenger of peroxynitrite, is involved in MS pathology and that increasing serum uric acid levels might have beneficial therapeutic effects. The aim of this study is to investigate serum uric acid levels in MS patients before and after long-term interferon beta treatment. Blood samples from 101 MS patients (53 receiving interferon beta 1a treatment and 48 receiving interferon beta 1b treatment; 28 male and 73 female; mean age at treatment onset 32,4±7,3 years; mean duration of disease at treatment onset 5,1±3,2 years; mean EDSS 2±1,3) before and after interferon beta treatment (mean treatment duration 3±2 years) were analysed. Serum uric acid levels were measured using a quantitative enzymatic assay (Elitech Diagnostic, Sees, France). MS patients had significantly increased serum uric acid levels after treatment compared with those at the beginning of treatment (272,31±78,21 μmol/l vs. 210,17±53,65 μmol/l; p=0,019, Wilcoxon Mann-Whitney U-test). We did not find significant differences in serum uric acid levels between the interferon beta 1a and interferon beta 1b groups (p=0.98). These results indicate that one of the beneficial effects of interferon beta in MS might be based on the elevation of serum uric acid levels as a natural scavenger of peroxynitrite.


Author(s):  
Carmen Adella Sirbu ◽  
Ionuț Caloianu ◽  
Mihaela-Mirela Micu ◽  
Florina Stoian

Author(s):  
Mohamad Reza Nikouei Moghaddam ◽  
Monireh Movahedi ◽  
Maryam Bananej ◽  
Soheil Najafi ◽  
Nahid Beladi Moghadam ◽  
...  

Background: Multiple sclerosis is an autoimmune chronic inflammatory disease of the central nervous system that can lead to some serious disabilities. Despite using various immunomodulatory and anti-inflammatory drugs that have therapeutic effects, they cannot reduce its progression completely, and have some unwanted side effects too. The immunomodulatory and anti-inflammatory effects of the β-D-Mannuronic acid [M2000] have been proven in several surveys, and the present research was designed to determine its toxicity and therapeutic effects in MS patients. Methods: This study was performed on 15 MS patients who took 25 mg/kg/day the oral form of the β-D-Mannuronic acid for six months, and 15 healthy people as a control group. Serum levels of Urea, Creatinine, GGT, Vitamin D3, Uric acid, and Anti-Phospholipids were compared to evaluate the therapeutic and possible toxic effects of this drug after this period. Results: Non- toxic effects through the study of Urea, Creatinine, GGT, and non-significant changes in Uric acid and AntiPhospholipids levels, besides a significant rise in Vitamin, D3 levels in the M2000 treated cases were found. Conclusions: Our results suggested that β-D-Mannuronic acid is a safe drug and has no toxicity when administered orally and also has some therapeutic effects in MS patients.


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