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Habek M, Blazekovic A, Gotovac Jercic K, Pivac N, Outero TF, Borovecki F, Brinar V. Genome-Wide Expression Profile in People with Optic Neuritis Associated with Multiple Sclerosis. Biomedicines 2023; 11:2209. [PMID: 37626706 PMCID: PMC10452153 DOI: 10.3390/biomedicines11082209] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/13/2023] [Accepted: 07/20/2023] [Indexed: 08/27/2023] Open
Abstract
The aim of this study was to perform a genome-wide expression analysis of whole-blood samples from people with optic neuritis (ON) and to determine differentially expressed mRNAs compared to healthy control subjects. The study included eight people with acute ON and six healthy control subjects. Gene expression was analyzed using DNA microarrays for whole-human-genome analysis, which contain 54,675 25-base pairs. The additional biostatistical analysis included gene ontology analysis and gene set enrichment analysis (GSEA). Quantitative RT-PCR (qPCR) was used to confirm selected differentially expressed genes. In total, 722 differently expressed genes were identified, with 377 exhibiting increased, and 345 decreased, expression. Gene ontology analysis and GSEA revealed that protein phosphorylation and intracellular compartment, apoptosis inhibition, pathways involved in cell cycles, T and B cell functions, and anti-inflammatory central nervous system (CNS) pathways are implicated in ON pathology. qPCR confirmed the differential expression of eight selected genes, with SLPI, CR3, and ITGA4 exhibiting statistically significant results. In conclusion, whole-blood gene expression analysis showed significant differences in the expression profiles of people with ON compared to healthy control subjects. Additionally, pathways involved in T cell regulation and anti-inflammatory pathways within CNS were identified as important in the early phases of MS.
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Affiliation(s)
- Mario Habek
- Department of Neurology, Referral Center for Autonomic Nervous System Disorders, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Antonela Blazekovic
- Department for Functional Genomics, Center for Translational and Clinical Research, University of Zagreb School of Medicine, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
- Department for Anatomy and Clinical Anatomy, University of Zagreb School of Medicine, 10000 Zagreb, Croatia
| | - Kristina Gotovac Jercic
- Department for Functional Genomics, Center for Translational and Clinical Research, University of Zagreb School of Medicine, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
- Department of Neurology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Nela Pivac
- Division of Molecular Medicine, Rudjer Bošković Institute, 10002 Zagreb, Croatia
| | - Tiago Fleming Outero
- Department of Experimental Neurodegeneration, Centre for Biostructural Imaging of Neurodegeneration, University Medical Centre Göttingen, 37075 Göttingen, Germany
- Max Planck Institute for Experimental Medicine, 37075 Göttingen, Germany
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle upon Tyne NE1 7RU, UK
- German Centre for Neurodegenerative Diseases (DZNE), 17475 Göttingen, Germany
| | - Fran Borovecki
- Department for Functional Genomics, Center for Translational and Clinical Research, University of Zagreb School of Medicine, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
- Department of Neurology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Vesna Brinar
- Department of Neurology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
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Association of APOE Serum Levels and APOE ε2, ε3, and ε4 Alleles with Optic Neuritis. Genes (Basel) 2022; 13:genes13071188. [PMID: 35885971 PMCID: PMC9323366 DOI: 10.3390/genes13071188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 01/27/2023] Open
Abstract
Optical neuritis (ON), otherwise known as optical nerve damage, is a term used to describe various environmental and body conditions that lead to optic nerve dysfunction. Neurologists are well aware of conditions that cause optic neuropathy, such as trauma, infections, malnutrition, and various toxins. As optic neuritis is a multifactorial demyelinating or infectious process, genetic predisposition may also influence the progression of optic neuritis. This study aimed to evaluate the association of ON (with and without multiple sclerosis) with APOE alleles and APOE serum levels. We found that the APOE ε3/ε3 genotype was statistically less common in the ON group of males than in the control group (p = 0.045). Moreover, the APOE ε3/ε3 genotype had a 3.7-fold increase in the odds of ON development in males (OR = 3.698; CI: 1.503–9.095; p = 0.004). In contrast, the APOE ε3/ε4 genotype had a 4.1-fold decrease in the odds of ON development in males (OR = 0.242; CI: 0.083–0.704; p = 0.009). APOE serum levels were statistically significantly higher in the ON group than in the control group (p = 0.042). The APOE ε3/ε3 genotype may increase males’ risk of developing ON, while the ε3/ε4 genotype may reduce males’ risk of developing ON.
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Kolonaite G, Vilkeviciute A, Kriauciuniene L, Gedvilaite G, Liutkeviciene R. Association of RAGE rs1800624 and rs1800625 gene polymorphisms with predisposition to optic neuritis and optic neuritis together with multiple sclerosis. Ophthalmic Genet 2021; 42:685-690. [PMID: 34338585 DOI: 10.1080/13816810.2021.1952619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Optic neuritis (ON) is demyelinating acute inflammatory disease which affects the optic nerve. ON is classified as a typical (demyelinating) or an atypical (idiopathic). Patients often complain having a periocular pain or a visual loss. The main factor causing the optic neuritis is still unknown. It is believed that it might be a combination of genetic and environmental factors. As the optic neuritis is an inflammation disease, the RAGE gene was selected as it is a part of the inflammation process. AIM to determine the relation between RAGE rs1800624 and rs1800625 genotypes of patients who have a manifestation of optic neuritis and optic neuritis with multiple sclerosis together in Lithuanian population and visual acuity recovery. OBJECTIVES patients with optic neuritis and healthy controls individuals were examined. Genotyping was carried out by using the instrument of real-time polymerase chain reaction called StepOnePlus (AppliedBiosystems). Statistical analysis was performed using IBM SPSS Statistics 20.0 software and free PLINK software (version 1.07). RESULTS Results indicate that rs1800624 polymorphism is not statistically significant in optic neuritis manifestation (p = .392), while rs1800625 GG genotype is associated with 7.5-fold increased odds of ON development under the codominant model (OR = 7.5; 95% CI:1.796-31.313; p = .006) and with 6.9-fold increased odds under the recessive model OR = 6.862; 95% CI:1.665-28.288; p = .008); and each allele G is associated with 1.9-fold increased odds of ON development under the additive model (OR = 1.879; 95% CI:1.149-3.072; p = .012). The haplotype containing A-G alleles in rs1800624 and rs1800625 was statistically significantly associated with increased risk for ON development (χ2 = 13.23; p < .001). Both polymorphisms do not have statistically significant importance in relation to visual acuity recovery. CONCLUSIONS RAGE rs1800625 AA genotype decreases the risk of optic neuritis. The single nucleotide polymorphisms RAGE rs1800624 and rs1800625 do not have a statistically significant importance in relation with visual acuity recovery.
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Affiliation(s)
- Gabriele Kolonaite
- Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Alvita Vilkeviciute
- Medical Academy, Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Loresa Kriauciuniene
- Medical Academy, Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Greta Gedvilaite
- Medical Academy, Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rasa Liutkeviciene
- Medical Academy, Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Punyte V, Vilkeviciute A, Gedvilaite G, Kriauciuniene L, Liutkeviciene R. Association of VEGFA, TIMP-3, and IL-6 gene polymorphisms with predisposition to optic neuritis and optic neuritis with multiple sclerosis. Ophthalmic Genet 2020; 42:35-44. [PMID: 33121296 DOI: 10.1080/13816810.2020.1839916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND The etiology of the inflammatory ON is multifactorial. Much attention is paid to the inflammatory and immune processes that are likely to contribute to the demyelination and MS development. IL-6, VEGFA, and TIMP-3 genes are thought to be involved in the inflammatory processes and manifestation of CNS demyelination, so we aimed to determine the relationship between VEGFA rs1413711, TIMP-3 rs9621532, IL-6 rs1800796 gene polymorphisms and ON, and ON with MS. MATERIALS AND METHODS Patients with ON, ON with MS, and a random sample of healthy population were enrolled. The genotyping of VEGFA rs1413711, TIMP-3 rs9621532, and IL-6 rs1800796 polymorphisms was carried out using the real-time polymerase chain reaction method. RESULTS T/C and C/C genotypes of VEGFA rs1413711 were associated with about threefold increased odds of developing ON in the dominant and codominant models. Each allele C at VEGFA rs1413711 was associated with 1.7-fold increased odds of ON development. IL-6 rs1800796 allele C was more frequent in the ON with MS group compared to the control: 17.6% vs. 7.5%, respectively (p = .040). No statistically significant associations were found between TIMP-3 rs9621532 and the ON development. CONCLUSION: VEGFA rs1413711 is associated with the ON development.
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Affiliation(s)
- Vaida Punyte
- Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania
| | - Alvita Vilkeviciute
- Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania.,Neuroscience Institute, Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania
| | - Greta Gedvilaite
- Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania.,Neuroscience Institute, Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania
| | - Loresa Kriauciuniene
- Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania.,Neuroscience Institute, Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania
| | - Rasa Liutkeviciene
- Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania.,Neuroscience Institute, Lithuanian University of Health Sciences, Medical Academy , Kaunas, Lithuania
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