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Šalamon Arčan I, Katrašnik M, Kouter K, Zupanc T, Videtič Paska A. Extracellular vesicles from cerebrospinal fluid revealed changes in miR-19a-3p and miR-4516 expression in Slovene male suicides. GENES, BRAIN, AND BEHAVIOR 2023; 22:e12868. [PMID: 37794714 PMCID: PMC10733571 DOI: 10.1111/gbb.12868] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/21/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
Suicide is an important public-health concern, with more than 700,000 people dying by suicide yearly. It is a multifactorial phenomenon, shaped by the effects of sociodemographic, environmental and biological factors. The latter two factors can be linked through epigenetic studies, which examine differences in gene expression that are not due to changes in the DNA sequence itself. Epigenetic mechanisms include micro RNAs (miRNAs), which have a direct effect on already translated mRNA, leading to either decay or translational repression of the target mRNA. MiRNA molecules have been identified as cargo of extracellular vesicles (EVs) used by cells for long-distance communication, and pathophysiological changes in miRNA in brain cells may be reflected in cerebrospinal fluid (CSF) vesicles. In this study we investigated the presence and differential expression of selected miRNAs in EVs from the CSF of male suicide completers and controls. Western blot and nanoparticle tracking analyses confirmed the presence of small and medium sized EVs. Of the miRNA analyzed (miR-16-5p, miR-19a-3p, miR-34c-5p, miR-17-5p, miR-4286, miR-26b-5p, miR-381-3p, and miR-4516) miR-19a-3p and miR-4516 reached statistical significance with p-values of 0.0408 and 0.0168, respectively. Mir-4516 and miRNA-19a-3p have been previously studied in suicide, and target SLC6A4 and TNF-α expression, correspondingly. Approximately 70% of known miRNAs are expressed in the central nervous system, and therefore represent an important biomarker potential. Investigating the cargo of CFS and blood EVs would further support the identification of miRNAs with clinical use potential.
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Affiliation(s)
- Iris Šalamon Arčan
- Institute of Biochemistry and Molecular Genetics, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
| | - Mojca Katrašnik
- Institute of Biochemistry and Molecular Genetics, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
| | - Katarina Kouter
- Institute of Biochemistry and Molecular Genetics, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
- Institute of Microbiology and ImmunologyFaculty of Medicine, University of LjubljanaLjubljanaSlovenia
| | - Tomaž Zupanc
- Institute of Forensic Medicine, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
| | - Alja Videtič Paska
- Institute of Biochemistry and Molecular Genetics, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
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Muñoz-San Martín M, Gómez I, Quiroga-Varela A, Gonzalez-del Río M, Robles Cedeño R, Álvarez G, Buxó M, Miguela A, Villar LM, Castillo-Villalba J, Casanova B, Quintana E, Ramió-Torrentà L. miRNA Signature in CSF From Patients With Primary Progressive Multiple Sclerosis. NEUROLOGY(R) NEUROIMMUNOLOGY & NEUROINFLAMMATION 2022; 10:10/1/e200069. [PMID: 36724195 PMCID: PMC9743264 DOI: 10.1212/nxi.0000000000200069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 10/11/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Primary progressive multiple sclerosis (PPMS) displays a highly variable disease progression with a characteristic accumulation of disability, what makes difficult its diagnosis and efficient treatment. The identification of microRNAs (miRNAs)-based signature for the early detection in biological fluids could reveal promising biomarkers to provide new insights into defining MS clinical subtypes and potential therapeutic strategies. The objective of this cross-sectional study was to describe PPMS miRNA profiles in CSF and serum samples compared with other neurologic disease individuals (OND) and relapsing-remitting MS (RRMS). METHODS First, a screening stage analyzing multiple miRNAs in few samples using OpenArray plates was performed. Second, individual quantitative polymerase chain reactions (qPCRs) were used to validate specific miRNAs in a greater number of samples. RESULTS A specific profile of dysregulated circulating miRNAs (let-7b-5p and miR-143-3p) was found downregulated in PPMS CSF samples compared with OND. In addition, in serum samples, miR-20a-5p and miR-320b were dysregulated in PPMS against RRMS and OND, miR-26a-5p and miR-485-3p were downregulated in PPMS vs RRMS, and miR-142-5p was upregulated in RRMS compared with OND. DISCUSSION We described a 2-miRNA signature in CSF of PPMS individuals and several dysregulated miRNAs in serum from patients with MS, which could be considered valuable candidates to be further studied to unravel their actual role in MS. CLASSIFICATION OF EVIDENCE This study provides Class II evidence that specific miRNA profiles accurately distinguish PPMS from RRMS and other neurologic disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Ester Quintana
- From the Neuroinflammation and Neurodegeneration Group (M.M.-S.M., I.G., A.Q.-V., M.G.R., R.R.C., G.Á., A.M., E.Q., L.R.-T.), Girona Biomedical Research Institute (IDIBGI), Salt, Spain; CERCA Programme/Generalitat de Catalunya; Neurology Department (R.R.C., G.Á., L.R.-T.), Girona Neuroimmunology and Multiple Sclerosis Unit, Dr. Josep Trueta University Hospital and Santa Caterina Hospital; Red Española de Esclerosis Múltiple (REEM) (R.R.C., E.Q., L.R.-T.) Medical Sciences Department (R.R.C., E.Q., L.R.-T.), University of Girona (UdG), Spain; Girona Biomedical Research Institute (IDIBGI) (M.B.), Spain; Immunology Department (L.M.V.), Hospital Ramón y Cajal, Madrid, Spain; IRYCIS; and Unitat de Neuroimmunologia, Hospital Universitari i Politècnic La Fe.València (J.C.-V., B.C.).
| | - Lluís Ramió-Torrentà
- From the Neuroinflammation and Neurodegeneration Group (M.M.-S.M., I.G., A.Q.-V., M.G.R., R.R.C., G.Á., A.M., E.Q., L.R.-T.), Girona Biomedical Research Institute (IDIBGI), Salt, Spain; CERCA Programme/Generalitat de Catalunya; Neurology Department (R.R.C., G.Á., L.R.-T.), Girona Neuroimmunology and Multiple Sclerosis Unit, Dr. Josep Trueta University Hospital and Santa Caterina Hospital; Red Española de Esclerosis Múltiple (REEM) (R.R.C., E.Q., L.R.-T.) Medical Sciences Department (R.R.C., E.Q., L.R.-T.), University of Girona (UdG), Spain; Girona Biomedical Research Institute (IDIBGI) (M.B.), Spain; Immunology Department (L.M.V.), Hospital Ramón y Cajal, Madrid, Spain; IRYCIS; and Unitat de Neuroimmunologia, Hospital Universitari i Politècnic La Fe.València (J.C.-V., B.C.).
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Guo X, Geng X, Chu Y, Gao J, Jiang L. MiR-204-5p Alleviates Neuropathic Pain by Targeting BRD4 in a Rat Chronic Constrictive Injury Model. J Pain Res 2022; 15:2427-2435. [PMID: 36003288 PMCID: PMC9394659 DOI: 10.2147/jpr.s371616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/08/2022] [Indexed: 12/05/2022] Open
Abstract
Purpose The pathogenesis of neuropathic pain is complex, and previous studies have found that microRNAs are important regulators of neuropathic pain and are associated with the progression of neuropathic pain. This study aims to explore the level and role of miR-204-5p in the chronic constrictive injury (CCI) model of rats. Patients and Methods The CCI rat model was constructed to evaluate paw withdrawal threshold (PWT), paw withdrawal latency (PWL), the expressions of miR-204-5p, and the contents of inflammatory factors in the model. Overexpression of miR-204-5p in rat spinal cord was induced by intrathecal injection of miR-204-5p mimics. PWT and PWL were used to estimate mechanical and thermal pain thresholds. IL-6 and TNF-α were determined by ELISA. Luciferase reporter gene was conducted to verify the targeting relationship between miR-204-5p and BRD4. Results miR-204-5p was abnormally down-regulated in the CCI group. The thresholds of mechanical and thermal pain stimulation in the CCI group were lower, and the levels of inflammatory factors were higher than those in the sham group. Overexpression of miR-204-5p alleviated PWT, PWL and inflammatory factors. Besides, the luciferase reporter gene showed that BRD4 was a target gene of miR-204-5p. Conclusion These results suggested that miR-204-5p may alleviate neuropathic pain and inflammation through targeted regulation of BRD4 expression.
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Affiliation(s)
- Xiaona Guo
- Pain Department, Dongying People's Hospital, Dongying, Shandong, People's Republic of China
| | - Xia Geng
- Pain Department, Dongying People's Hospital, Dongying, Shandong, People's Republic of China
| | - Yunchao Chu
- Pain Department, Shengli Oilfield Central Hospital, Dongying, Shandong, People's Republic of China
| | - Jianfei Gao
- Pain Department, Dongying People's Hospital, Dongying, Shandong, People's Republic of China
| | - Linkai Jiang
- Pain Department, Dongying People's Hospital, Dongying, Shandong, People's Republic of China
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Villa C, Yoon JH. Multi-Omics for the Understanding of Brain Diseases. Life (Basel) 2021; 11:life11111202. [PMID: 34833078 PMCID: PMC8618909 DOI: 10.3390/life11111202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 11/05/2021] [Indexed: 12/26/2022] Open
Abstract
Brain diseases, including both neurodegenerative diseases and mental disorders, represent the third largest healthcare problem in developed countries, after cardiovascular disorders and cancer [...].
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Affiliation(s)
- Chiara Villa
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
- Correspondence: (C.V.); (J.H.Y.)
| | - Jong Hyuk Yoon
- Neurodegenerative Diseases Research Group, Korea Brain Research Institute, Daegu 41062, Korea
- Correspondence: (C.V.); (J.H.Y.)
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