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Wu D, Zhong S, Du H, Han S, Wei X, Gong Q. MiR-184-5p represses neuropathic pain by regulating CCL1/CCR8 signaling interplay in the spinal cord in diabetic mice. Neurol Res 2024; 46:54-64. [PMID: 37842802 DOI: 10.1080/01616412.2023.2257454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/18/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Diabetic neuropathic pain (DNP) is a serious complication for diabetic patients involving nervous system. MicroRNAs (miRNAs) are small-noncoding RNAs which are dysregulated in neuropathic pain, and might be critical molecules for pain treatment. Our previous study has shown miR-184-5p was significantly downregulated in DNP. Therefore, the mechanism of miR-184-5p in DNP was investigated in this study. METHODS A DNP model was established through streptozotocin (STZ). The pharmacological tools were injected intrathecally, and pain behavior was evaluated by paw withdrawal mechanical thresholds (PWMTs). Bioinformatics analysis, Dual-luciferase reporter assay and fluorescence-in-situ-hybridization (FISH) were used to seek and confirm the potential target genes of miR-184-5p. The expression of relative genes and proteins was analyzed by quantitative reverse transcriptase real-time PCR (qPCR) and western blotting. RESULTS MiR-184-5p expression was down-regulated in spinal dorsal on days 7 and 14 after STZ, while intrathecal administration of miR-184-5p agomir attenuates neuropathic pain induced by DNP and intrathecal miR-184-5p antagomir induces pain behaviors in naïve mice. Chemokine CC motif ligand 1 (CCL1) was found to be a potential target of miR-184-5p and the protein expression of CCL1 and the mRNA expression of CCR8 were up-regulated in spinal dorsal on days 7 and 14 after STZ. The luciferase reporter assay and FISH demonstrated that CCL1 is a direct target of miR-184-5p. MiR-184-5p overexpression attenuated the expression of CCL1/CCR8 in DNP; intrathecal miR-184-5p antagomir increased the expression of CCL1/CCR8 in spinal dorsal of naïve mice. CONCLUSION This research illustrates that miR-184-5p alleviates DNP through the inhibition of CCL1/CCR8 signaling expression.
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Affiliation(s)
- Danlei Wu
- Department of Pain Medicine, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shuotao Zhong
- Department of Pain Medicine, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Huiying Du
- Department of Anesthesiology, Guangdong Women and Children Hospital, Guangzhou, China
| | - Shuang Han
- Department of Physiology and Pain Research Center, Zhongshan Medical School, Sun Yat-Sen University, Guangzhou, China
| | - Xuhong Wei
- Department of Physiology and Pain Research Center, Zhongshan Medical School, Sun Yat-Sen University, Guangzhou, China
| | - Qingjuan Gong
- Department of Pain Medicine, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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2
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Mikulski D, Nowicki M, Dróźdż I, Misiewicz M, Kościelny KP, Okoński K, Krawiec K, Perdas E, Wierzbowska A, Fendler W. High serum miR-223-3p expression level predicts complete response and prolonged overall survival in multiple myeloma patients undergoing autologous hematopoietic stem cell transplantation. Front Oncol 2023; 13:1250355. [PMID: 37829335 PMCID: PMC10565214 DOI: 10.3389/fonc.2023.1250355] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/23/2023] [Indexed: 10/14/2023] Open
Abstract
Introduction AHSCT is the treatment of choice for newly diagnosed patients with transplant-eligible multiple myeloma (MM). However, considerable variability in response to autologous hematopoietic stem cell transplantation (AHSCT) results in only 50% of patients achieving complete response (CR) after AHSCT, which is directly associated with improved progression-free and overall survival (OS). In this study, we aimed to investigate the potential predictive role of selected serum miRNAs in MM patients who underwent AHSCT. Patients and methods Serum expression level of 6 miRNAs: miR-221-3p, miR-15b-5p, miR-223-3p, miR-320c, miR-361-3p, and miR-150-5p was evaluated in 51 patients who underwent AHSCT. Blood samples were collected at two time points: before conditioning chemotherapy (T1) and fourteen days after transplant (+14) (T2). Results All selected miRNAs significantly changed their expression level across the procedure- two were up-regulated after AHSCT: hsa-miR-320c (FC 1.42, p<0.0001) and hsa-miR-361-3p (FC 1.35, p=0.0168); four were down-regulated: hsa-miR-15b-5p (FC 0.53, p<0.0001), hsa-miR-221-3p (FC 0.78, p=0.0004), hsa-miR-223-3p (FC 0.74, p=0.0015) and hsa-miR-150-5p (FC 0.75, p=0.0080). Notably, before AHSCT, hsa-miR-223-3p was down-regulated in International Staging System (ISS) III patients (FC=0.76, p=0.0155), and hsa-miR-320c was up-regulated (FC=1.27, p=0.0470). These differences became non-significant after AHSCT. Eight (15.69%) patients achieved CR before AHSCT and 17 patients (33.33%) at +100 days after AHSCT. In multivariate logistic regression analysis, achievement of CR after induction and hsa-miR-223-3p at T1 were independent predictors of CR after AHSCT. In multivariate Cox regression analysis, hsa-miR-223-3p at T1 expression level was associated with prolonged OS (HR 0.06, 95%CI: 0.00 - 0.99, p=0.0488). Conclusion Serum expression of has-miR-223-3p is a predictor of CR and prolonged OS in MM patients undergoing AHSCT.
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Affiliation(s)
- Damian Mikulski
- Department of Biostatistics and Translational Medicine, Medical University of Lodz, Lodz, Poland
- Department of Hematooncology, Copernicus Memorial Hospital in Lodz, Lodz, Poland
| | - Mateusz Nowicki
- Department of Hematology and Transplantology, Copernicus Memorial Hospital in Lodz, Lodz, Poland
- Department of Hematology, Medical University of Lodz, Lodz, Poland
| | - Izabela Dróźdż
- Department of Clinical Genetics, Medical University of Lodz, Lodz, Poland
| | - Małgorzata Misiewicz
- Department of Hematology and Transplantology, Copernicus Memorial Hospital in Lodz, Lodz, Poland
| | - Kacper Piotr Kościelny
- Department of Biostatistics and Translational Medicine, Medical University of Lodz, Lodz, Poland
| | - Karol Okoński
- Department of Biostatistics and Translational Medicine, Medical University of Lodz, Lodz, Poland
| | - Kinga Krawiec
- Department of Hematology and Transplantology, Copernicus Memorial Hospital in Lodz, Lodz, Poland
- Department of Hematology, Medical University of Lodz, Lodz, Poland
| | - Ewelina Perdas
- Department of Biostatistics and Translational Medicine, Medical University of Lodz, Lodz, Poland
| | - Agnieszka Wierzbowska
- Department of Hematology and Transplantology, Copernicus Memorial Hospital in Lodz, Lodz, Poland
- Department of Hematology, Medical University of Lodz, Lodz, Poland
| | - Wojciech Fendler
- Department of Biostatistics and Translational Medicine, Medical University of Lodz, Lodz, Poland
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Giordano R, Gerra MC, Okutani H, Lo Vecchio S, Stensballe A, Petersen KKS, Arendt-Nielsen L. The temporal expression of circulating microRNAs after acute experimental pain in humans. Eur J Pain 2023; 27:366-377. [PMID: 36453122 DOI: 10.1002/ejp.2062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND MicroRNAs (miRNAs) can modulate several biological systems, including the pain system. This study aimed to evaluate the temporal expression of circulating miRNAs in the plasma of healthy volunteers as a marker for epigenetic changes before and after an acute, experimental, pain provocation by intramuscular hypertonic saline injection. METHODS Twenty volunteers were randomly allocated into two groups and received either hypertonic (pain) or isotonic (control) saline injection in the first dorsal interosseous muscle of their dominant hand. Pain intensity was continuously recorded for 20 minutes after injection on a VAS scale from 0 to 100 (0 indicates no pain and 100 the worst imaginable pain). Blood samples were taken at baseline, 30 minutes, 3 hours, and 24 hours post-injection, and plasma was separated. MiRNA extracts were used for RNA sequencing with the Illumina NextSeq platform. MiRNA transcripts were compared between the pain and the no-pain, control group at every time point. Significant differences were considered when folds were >2 and the False Discovery Rate was p < 0.05. RESULTS After 30 minutes, 4 miRNAs were significantly altered in the pain group compared to controls, which increased to 24 after 3 hours and to 42 after 24 hours from baseline (p < 0.0001). Two miRNAs were consistently upregulated throughout the experiment. Enrichment analysis showed significant miRNAs involved in brain perception of pain, brain signalling and response to stimuli. CONCLUSIONS This exploratory study is the first to report on the temporal expression of circulating miRNAs after an acute, human experimental muscle pain model. SIGNIFICANCE This exploratory study evaluated the temporal profile of circulating miRNAs in the plasma of healthy subjects after acute experimental pain. Several miRNAs were altered in subjects at the times of follow-up after the acute pain model when compared to controls. MiRNAs previously associated with pain processes were altered in the pain group. Our results, by showing the fast and prolonged modifications of miRNA elicited by the acute experimental pain model, add new perspectives to the topic of epigenetics and pain.
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Affiliation(s)
- Rocco Giordano
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
| | - Maria Carla Gerra
- Department of Chemistry, Life science, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Hiroai Okutani
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
- Department of Anesthesiology and Pain Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Silvia Lo Vecchio
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
| | - Allan Stensballe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Kristian Kjaer-Staal Petersen
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
- Center for Mathematical Modeling of Knee Osteoarthritis (MathKOA), Aalborg University, Department of Material and Production, Faculty of Engineering and Science, Aalborg, Denmark
| | - Lars Arendt-Nielsen
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
- Department of Gastroenterology & Hepatology, (Mech-Sense), Aalborg University Hospital, Aalborg, Denmark
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Sun Y, Chen L, Xu T, Gou B, Mai JW, Luo DX, Xin WJ, Wu JY. MiR-672-5p-Mediated Upregulation of REEP6 in Spinal Dorsal Horn Participates in Bortezomib-Induced Neuropathic Pain in Rats. Neurochem Res 2023; 48:229-237. [PMID: 36064821 DOI: 10.1007/s11064-022-03741-7] [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: 04/25/2022] [Revised: 08/19/2022] [Accepted: 08/27/2022] [Indexed: 01/07/2023]
Abstract
Evidence shows that miRNAs are deeply involved in nervous system diseases, but whether miRNAs contribute to the bortezomib (BTZ)-induced neuropathic pain remains unclear. We aimed to investigate whether miRNAs contribute to bortezomib (BTZ)-induced neuropathic pain and explore the related downstream cascades. The level of miRNAs in the spinal dorsal horn was explored using miRNA microarray and PCR. MiR-672-5p was significantly downregulated in dorsal horn neurons in the rats with BTZ treatment. Intrathecal injection of miR-672-5p agomir blunted the increase of the amplitude and frequency of sEPSCs in dorsal horn neurons and mechanical allodynia induced by BTZ. In addition, the knockdown of miR-672-5p by intrathecal injection of antagomir increased the amplitude and frequency of sEPSCs in dorsal horn neurons and decreased the mechanical withdrawal threshold in naïve rats. Furthermore, silico analysis and the data from subsequent assays indicated that REEP6, a potential miR-672-5p-regulating molecule, was increased in the spinal dorsal horn of rats with BTZ-induced neuropathic pain. Blocking REEP6 alleviated the mechanical pain behavior induced by BTZ, whereas overexpressing REEP6 induced pain hypersensitivity in naïve rats. Importantly, we further found that miR-672-5p was expressed in the REEP6-positive cells, and overexpression or knockdown of miR-672-5p reversely regulated the REEP6 expression. Bioinformatics analysis and double-luciferase reporter assay showed the existence of interaction sites between REEP6 mRNA and miR-672-5p. Overall, our study demonstrated that miR-672-5p directly regulated the expression of REEP6, which participated in the neuronal hyperexcitability in the spinal dorsal horn and neuropathic pain following BTZ treatment. This signaling pathway may potentially serve as a novel therapeutic avenue for chemotherapeutic-induced mechanical hypersensitivity.
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Affiliation(s)
- Yang Sun
- Graduate Department, Department of Sport Medicine, Xi'an Physical Education University, Xi'an, 710068, Shanxi, China.,Department of Rehabilitation Medicine, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, Shanxi, China
| | - Li Chen
- Zhongshan School of Medicine and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China
| | - Ting Xu
- Zhongshan School of Medicine and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China
| | - Bo Gou
- Graduate Department, Department of Sport Medicine, Xi'an Physical Education University, Xi'an, 710068, Shanxi, China
| | - Jing-Wen Mai
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, 516001, Guangdong, China
| | - De-Xing Luo
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou, 516001, Guangdong, China
| | - Wen-Jun Xin
- Zhongshan School of Medicine and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China
| | - Jia-Yan Wu
- Zhongshan School of Medicine and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-Sen University, 74 Zhongshan Rd. 2, Guangzhou, 510080, China.
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5
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Role of miRNAs in diabetic neuropathy: mechanisms and possible interventions. Mol Neurobiol 2022; 59:1836-1849. [PMID: 35023058 DOI: 10.1007/s12035-021-02662-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/19/2021] [Indexed: 10/19/2022]
Abstract
Accelerating cases of diabetes worldwide have given rise to higher incidences of diabetic complications. MiRNAs, a much-explored class of non-coding RNAs, play a significant role in the pathogenesis of diabetes mellitus by affecting insulin release, β-cell proliferation, and dysfunction. Besides, disrupted miRNAs contribute to various complications, diabetic retinopathy, nephropathy, and neuropathy as well as severe conditions like diabetic foot. MiRNAs regulate various processes involved in diabetic complications like angiogenesis, vascularization, inflammations, and various signaling pathways like PI3K, MAPK, SMAD, and NF-KB signaling pathways. Diabetic neuropathy is the most common diabetic complication, characterized mainly by pain and numbness, especially in the legs and feet. MiRNAs implicated in diabetic neuropathy include mir-9, mir-106a, mir-146a, mir-182, miR-23a and b, miR-34a, and miR-503. The diabetic foot is the most common diabetic neuropathy, often leading to amputations. Mir-203, miR-23c, miR-145, miR-29b and c, miR-126, miR-23a and b, miR-503, and miR-34a are associated with diabetic foot. This review has been compiled to summarize miRNA involved in initiation, progression, and miRNAs affecting various signaling pathways involved in diabetic neuropathy including the diabetic foot. Besides, potential applications of miRNAs as biomarkers and therapeutic targets in this microvascular complication will also be discussed.
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6
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Császár N, Scholkmann F, Bókkon I. Implications on hypnotherapy: Neuroplasticity, epigenetics and pain. Neurosci Biobehav Rev 2021; 131:755-764. [PMID: 34619172 DOI: 10.1016/j.neubiorev.2021.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 09/07/2021] [Accepted: 10/01/2021] [Indexed: 01/11/2023]
Abstract
We provide a brief review about the significance of hypnosis with respect to applications and physiological processes in hypnotherapy. Our review concludes that hypnosis is a promising method to manage acute and chronic pain. In addition, we discuss indications pointing toward the view that hypnosis can induce changes in neuroplasticity possibly involving epigenetic mechanisms.
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Affiliation(s)
- N Császár
- National University of Public Services, Budapest, Hungary; Psychosomatic Outpatient Clinics, Budapest, Hungary.
| | - F Scholkmann
- Biomedical Optics Research Laboratory, Department of Neonatology, University Hospital Zurich, University of Zurich, Switzerland.
| | - I Bókkon
- Psychosomatic Outpatient Clinics, Budapest, Hungary; Vision Research Institute, Neuroscience and Consciousness Research Department, Lowell, MA, USA.
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7
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Circulating miRNome of Trachemys scripta after elective gonadectomy under general anesthesia. Sci Rep 2021; 11:14712. [PMID: 34282201 PMCID: PMC8289937 DOI: 10.1038/s41598-021-94113-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 07/05/2021] [Indexed: 12/30/2022] Open
Abstract
Post-surgical management is an important issue in veterinary medicine, requiring biomarkers with high sensitivity and specificity for timely and effective treatment. Emerging evidence suggests that miRNAs are promising stress- and pain-related markers. The aims were to profile the circulating miRNA signature in plasma of turtles (Trachemysscripta) and point out potential candidate biomarkers to assess the status of the animal. The plasma of female turtles underwent surgical gonadectomy were collected 24 h pre-surgery, and 2.5 h and 36 h post-surgery. The expression of miRNAs was profiled by Next Generation Sequencing and the dysregulated miRNAs were validated using RT-qPCR. The diagnostic value of miRNAs was calculated by ROC curves. The results showed that 14 miRNAs were differentially expressed over time. RT-qPCR validation highlighted that 2-miR-499-3p and miR-203-5p-out of 8 miRNAs tested were effectively modulated. The Area Under the Curve (AUC) of miR-203-5p was fair (AUC 0.7934) in discriminating pre- and 36 h post-surgery samples and poor for other time points; the AUC of miR-499-3p was excellent (AUC 0.944) in discriminating pre-surgery and 2.5 h post-surgery samples, and fair in discriminating pre-surgery and 36 h post-surgery (AUC 0.7292) and 2.5 h and 36 h post-surgery (AUC 0.7569) samples. In conclusion, we demonstrated for the first time that miRNAs profile changes in plasma of turtles underwent surgical oophorectomy and identified miR-203-5p and miR-499-3p as potential candidate biomarkers to assess animals' status. Further studies are necessary to confirm their diagnostic value and to investigate functional and mechanistic networks to improve our understanding of the biological processes.
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8
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Meregalli C, Bonomo R, Cavaletti G, Carozzi VA. Blood molecular biomarkers for chemotherapy-induced peripheral neuropathy: From preclinical models to clinical practice. Neurosci Lett 2021; 749:135739. [PMID: 33600907 DOI: 10.1016/j.neulet.2021.135739] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 12/26/2022]
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) has long been recognized as a clinically significant issue in patients treated with antineoplastic drugs. This common long-term toxic side-effect which negatively impacts the outcome of the disease can lead to disability and have detrimental effects on patients' quality of life. Since axonal injury is a prominent feature of CIPN, responsible for several sensory symptoms, including pain, sensory loss and hypersensitivity to mechanical and/or cold stimuli in the hands and feet, neurophysiological assessments remain the gold standard for clinical diagnosis of CIPN. Given the large impact of CIPN on cancer patients, there is increasing emphasis on biomarkers of adverse outcomes in safety assessment and translational research, to prevent permanent neuroaxonal damage. Since the results on reliable blood molecular markers for axonal degeneration are still controversial, here we provide a brief overview of blood molecular biomarkers used for assessing and/or predicting CIPN in preclinical and clinical settings.
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Affiliation(s)
- C Meregalli
- Experimental Neurology Unit, School of Medicine and Surgery, NeuroMI (Milan Center for Neuroscience), University of Milan Bicocca, Monza, Italy
| | - R Bonomo
- Experimental Neurology Unit, School of Medicine and Surgery, NeuroMI (Milan Center for Neuroscience), University of Milan Bicocca, Monza, Italy; PhD Program in Neuroscience, University of Milan Bicocca, Monza, Italy
| | - G Cavaletti
- Experimental Neurology Unit, School of Medicine and Surgery, NeuroMI (Milan Center for Neuroscience), University of Milan Bicocca, Monza, Italy
| | - V A Carozzi
- Experimental Neurology Unit, School of Medicine and Surgery, NeuroMI (Milan Center for Neuroscience), University of Milan Bicocca, Monza, Italy; Young Against Pain Group, Italy.
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Genetic Variation as a Possible Explanation for the Heterogeneity of Pain in Tendinopathy: What can we learn from other pain syndromes? CENTRAL EUROPEAN JOURNAL OF SPORT SCIENCES AND MEDICINE 2021. [DOI: 10.18276/cej.2021.4-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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10
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Granulocyte Colony Stimulating Factor (GCSF) Can Attenuate Neuropathic Pain by Suppressing Monocyte Chemoattractant Protein-1 (MCP-1) Expression, through Upregulating the Early MicroRNA-122 Expression in the Dorsal Root Ganglia. Cells 2020; 9:cells9071669. [PMID: 32664488 PMCID: PMC7408430 DOI: 10.3390/cells9071669] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 01/04/2023] Open
Abstract
Our previous animal studies and several human clinical trials have shown that granulocyte-colony stimulating factor (GCSF) can attenuate neuropathic pain through various mechanisms. GCSF itself is also a multipotent cytokine that can modulate microribonucleic acid (microRNA) expression profiles in vitro. In this study, we used the NanoString nCounter analysis system to screen the expression of different rodent microRNAs at early stage after nerve injury and studied the expression of related cytokines/chemokines in the dorsal root ganglia (DRGs) of rats that underwent chronic constriction injury (CCI) to explore the underlying mechanisms of the analgesic effects of GCSF. We found that microRNA-122 expression was downregulated by CCI; in contrast, GCSF treatment significantly upregulated microRNA-122 expression in the DRGs of CCI rats on the 1st day after nerve injury. We further studied the expression of different cytokines/chemokines (IL-1β, IL-6, and monocyte chemoattractant protein-1 (MCP-1)) that were modulated by microRNA-122. MCP-1 has been reported to participate in neuropathic pain development, and its expression on the DRGs of vehicle-treated CCI rats was significantly higher than that on the DRGs of sham-operated rats; in contrast, GCSF-treated rats exhibited significantly lower MCP-1 expression in the DRG than vehicle-treated rats on the 7th day after nerve injury. An early GCSF treatment can suppress MCP-1 expressions, through upregulating microRNA-122 expressions in the DRGs of CCI rats at an earlier stage, thus indirectly attenuating neuropathic pain development.
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11
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Chang LL, Wang HC, Tseng KY, Su MP, Wang JY, Chuang YT, Wang YH, Cheng KI. Upregulation of miR-133a-3p in the Sciatic Nerve Contributes to Neuropathic Pain Development. Mol Neurobiol 2020; 57:3931-3942. [PMID: 32632603 DOI: 10.1007/s12035-020-01999-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
The micro (mi)RNAs expressed in the sciatic nerve of streptozotocin (STZ)-induced diabetic rats were evaluated in terms of their therapeutic potential in patients with diabetic neuropathic pain (DNP). Relative miRNA expression in sciatic nerve with DNP was analyzed using next-generation sequencing and quantitative PCR. Potential downstream targets of miRNAs were predicted using Ingenuity Pathway Analysis and the TargetScan database. In vitro experiments were performed using miR-133a-3p-transfected RSC96 Schwann cells. We performed micro-Western and Western blotting and immunofluorescence analyses to verify the role of miR-133a-3p. In vivo, the association between miR-133a-3p with DNP was analyzed via AAV-miR-133a-3p intraneural (intra-epineural but extrafascicular) injection into the sciatic nerve of normal rats or injection of an miR-133a-3p antagomir into the sciatic nerve of diabetes mellitus (DM) rats. miR-133a-3p mimics transfected into RSC96 Schwann cells increased VEGFR-2, p38α MAPK, TRAF-6, and PIAS3 expression and reduced NFκB p50 and MKP3 expression. In normal rats, AAV-miR-133a-3p delivery via intraneural injection into the sciatic nerve induced mechanical allodynia and p-p38 MAPK activation. In DM rats, miR-133a-3p antagomir administration alleviated DNP and downregulated p-p38 phosphorylation. Overexpression of miR-133a-3p in the sciatic nerve induced such pain. We suggest that miR-133a-3p is a potential therapeutic target for DNP.
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Affiliation(s)
- Lin-Li Chang
- Department of Microbiology and Immunology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Hung-Chen Wang
- Department of Neurosurgery, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Kuang-Yi Tseng
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Miao-Pei Su
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jaw-Yuan Wang
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Surgery, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Ta Chuang
- Physical Education Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Hsuan Wang
- Department of Microbiology and Immunology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuang-I Cheng
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
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Zhang Q, Liu A, Abouelfetouh MM, Ma N, Li M, Chen S, Ding M, Ding Y. Let-7b-5p promotes electroacupuncture tolerance by downregulating Penk1 gene in CFA-induced inflammatory nociception rats. Gene 2020; 742:144583. [PMID: 32184167 DOI: 10.1016/j.gene.2020.144583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/09/2020] [Accepted: 03/11/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Studies showed that increased let-7b-5p microRNA during repeated electroacupuncture (EA) treatment was associated the formation of EA tolerance, which manifested as gradually decreased nociceptive threshold. Proenkephalin (PENK) is the precursor of enkephalin which is a pivot neuropeptide responsible for the decreased nociceptive threshold in EA. The aim of this study was to evaluate the relationship between let-7b-5p and PENK in EA tolerance. METHODS The target gene of let-7b-5p microRNA was determined through the dual-luciferase reporter assay in cortical neurons. Seventy-two Sprague Dawley rats received a combination of EA and intracerebroventricular injection of microRNA (let-7b-5p agomir, antagomir or their controls). The nociceptive thresholds were assessed with radiant heat tail-flick method. PENK and let-7b-5p were measured with Western Blot and qPCR, respectively, after administration of let-7b-5p agomir, antagomir, and their controls at day 1, 4 and 7. RESULTS Let-7b-5p targeted the 3' untranslated region of Penk1. The nociceptive thresholds in Let-7b-5p agomir + EA group were decreased (p < 0.05) compared with those in Let-7b-5p antagomir + EA group at day 1 to 7. Compared with Let-7b-5p agomir + EA group, the expression level of PENK in Let-7b-5p antagomir + EA group was increased at days 1, 4, and 7 (p < 0.05) CONCLUSION: Let-7b-5p may be a new potential target for decreasing the EA tolerance effect and facilitating the application of EA in treating chronic nociception of patients.
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Affiliation(s)
- Qiulin Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China.
| | - Ai Liu
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China.
| | - Mahmoud M Abouelfetouh
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China.
| | - Ning Ma
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China
| | - Meng Li
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China
| | - Shuhuai Chen
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China
| | - Mingxing Ding
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China.
| | - Yi Ding
- College of Veterinary Medicine, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, Hubei 430070, PR China.
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13
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Bu Q, Long H, Shao X, Gu H, Kong J, Luo L, Liu B, Guo W, Wang H, Tian J, Zhao Y, Cen X. Cocaine induces differential circular RNA expression in striatum. Transl Psychiatry 2019; 9:199. [PMID: 31434869 PMCID: PMC6704174 DOI: 10.1038/s41398-019-0527-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 04/26/2019] [Accepted: 06/20/2019] [Indexed: 02/05/2023] Open
Abstract
Circular RNA (circRNA), a novel type of endogenous non-coding RNA, plays natural miRNA sponge effect that represses the activities of corresponding miRNAs through binding with them, thus modulating transcriptional expression of genes. Recent studies indicate that circRNAs are significantly enriched in the brain and some of them are derived from synaptic protein-coding genes. In addition, miRNAs are involved in synaptic plasticity, memory formation, and cocaine addiction. However, the role of circRNAs in cocaine reward is unclear. This study aimed to investigate the expression profile of striatal circRNAs in the mice after cocaine self-administration. By using circRNA microarray analysis, we observed that 90 striatal circRNAs were differentially expressed in cocaine self-administering mice, of which 18 circRNAs were up-regulated and 72 down-regulated. Six circRNAs were selected randomly for validation by using quantitative reverse transcription-PCR, and their expression levels showed consistency with microarray analysis. We backward predicted the circRNAs and their binding sites of miRNAs associated with neuroplasticity. In functional validation test, mmu_circRNA_002381 may modulate the transcription of certain genes associated with neuroplasticity, such as limk1 and bdnf. Taken together, circRNAs may participate in cocaine behavioral effect via interacting with miRNAs. Our findings reveal a potential role of circRNAs in cocaine effect.
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Affiliation(s)
- Qian Bu
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China ,0000 0001 0807 1581grid.13291.38Healthy Food Evaluation Research Center, Department of Food Science and Technology, College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, 610065 China
| | - Hailei Long
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Xue Shao
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Hui Gu
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Jueying Kong
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Li Luo
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Bin Liu
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Wei Guo
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China ,0000 0000 9030 0162grid.440761.0School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005 China
| | - Hongbo Wang
- 0000 0000 9030 0162grid.440761.0School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005 China
| | - Jingwei Tian
- 0000 0000 9030 0162grid.440761.0School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005 China
| | - Yinglan Zhao
- 0000 0001 0807 1581grid.13291.38National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041 China
| | - Xiaobo Cen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Lab of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China.
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14
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Roitbak T. MicroRNAs and Regeneration in Animal Models of CNS Disorders. Neurochem Res 2019; 45:188-203. [PMID: 30877519 DOI: 10.1007/s11064-019-02777-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/10/2019] [Accepted: 03/11/2019] [Indexed: 12/20/2022]
Abstract
microRNAs (miRNAs) are recently identified small RNA molecules that regulate gene expression and significantly influence the essential cellular processes associated with CNS repair after trauma and neuropathological conditions including stroke and neurodegenerative disorders. A number of specific miRNAs are implicated in regulating the development and propagation of CNS injury, as well as its subsequent regeneration. The review focuses on the functions of the miRNAs and their role in brain recovery following CNS damage. The article introduces a brief description of miRNA biogenesis and mechanisms of miRNA-induced gene suppression, followed by an overview of miRNAs involved in the processes associated with CNS repair, including neuroprotection, neuronal plasticity and axonal regeneration, vascular reorganization, neuroinflammation, and endogenous stem cell activation. Specific emphasis is placed on the role of multifunctional miRNA miR-155, as it appears to be involved in multiple neurorestorative processes during different CNS pathologies. In association with our own studies on miR-155, I introduce a new and unexplored approach to cerebral regeneration: regulation of brain tissue repair through a direct modulation of specific miRNA activity. The review concludes with discussion on the challenges and the future potential of miRNA-based therapeutic approaches to CNS repair.
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Affiliation(s)
- Tamara Roitbak
- Department of Neurosurgery, University of New Mexico Health Sciences Center, 1101 Yale Blvd, Albuquerque, NM, 87106-3834, USA.
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15
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Ji LJ, Su J, Xu AL, Pang B, Huang QM. MiR-134-5p attenuates neuropathic pain progression through targeting Twist1. J Cell Biochem 2019; 120:1694-1701. [PMID: 30187947 DOI: 10.1002/jcb.27486] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/18/2018] [Indexed: 01/24/2023]
Abstract
Neuropathic pain is a kind of chronic pain because of dysfunctions of somatosensory nerve system. Recently, many studies have demonstrated that microRNAs (miRs) play crucial roles in neuropathic pain development. This study was designed to investigate the effects of miR-134-5p on the process of neuropathic pain progression in a rat model established by chronic sciatic nerve injury (CCI). First, we observed that miR-134-5p was significantly decreased in CCI rat models. Overexpression of miR-134-5p strongly alleviated neuropathic pain behaviors including mechanical and thermal hyperalgesia. Meanwhile, inflammatory cytokine expression, such as IL-6, IL-1β and TNF-α in CCI rats were greatly repressed by upregulation of miR-134-5p. Twist1 has been widely regarded as a poor prognosis biomarker in diverse diseases. Here, by using bioinformatic analysis, 3'-untranslated region (UTR) of Twist1 was predicted to be a downstream target of miR-134-5p in our study. Here, we found that overexpression of miR-134-5p was able to suppress Twist1 dramatically. Furthermore, it was exhibited that Twist1 was increased in CCI rats time-dependently and Twist1 was inhibited in vivo. Subsequently, downregulation of Twist1 in CCI rats could depress neuropathic pain progression via inhibiting neuroinflammation. In conclusion, our current study indicated that miR-134-5p may inhibit neuropathic pain development through targeting Twist1. Our findings suggested that miR-134-5p might provide a novel therapeutic target for neuropathic pain.
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Affiliation(s)
- Li-Juan Ji
- Department of Sport Medicine and Rehabilitation Center, School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Jing Su
- Department of Rehabilitation, The Affiliated Huai'an Hospital of Xuzhou Medical College and The Second People's Hospital of Huai'an, Huai'an, China
| | - An-Le Xu
- Department of Sport Medicine and Rehabilitation Center, School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Bo Pang
- Department of Sport Medicine and Rehabilitation Center, School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Qiang-Min Huang
- Department of Sport Medicine and Rehabilitation Center, School of Kinesiology, Shanghai University of Sport, Shanghai, China
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16
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Soula A, Valere M, López-González MJ, Ury-Thiery V, Groppi A, Landry M, Nikolski M, Favereaux A. Small RNA-Seq reveals novel miRNAs shaping the transcriptomic identity of rat brain structures. Life Sci Alliance 2018; 1:e201800018. [PMID: 30456375 PMCID: PMC6238413 DOI: 10.26508/lsa.201800018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 12/19/2022] Open
Abstract
Small RNA-Seq of the rat central nervous system reveals known and novel miRNAs specifically regulated in brain structures and correlated with the expression of their predicted target genes, suggesting a critical role in the transcriptomic identity of brain structures. In the central nervous system (CNS), miRNAs are involved in key functions, such as neurogenesis and synaptic plasticity. Moreover, they are essential to define specific transcriptomes in tissues and cells. However, few studies were performed to determine the miRNome of the different structures of the rat CNS, although a major model in neuroscience. Here, we determined by small RNA-Seq, the miRNome of the olfactory bulb, the hippocampus, the cortex, the striatum, and the spinal cord and showed the expression of 365 known miRNAs and 90 novel miRNAs. Differential expression analysis showed that several miRNAs were specifically enriched/depleted in these CNS structures. Transcriptome analysis by mRNA-Seq and correlation based on miRNA target predictions suggest that the specifically enriched/depleted miRNAs have a strong impact on the transcriptomic identity of the CNS structures. Altogether, these results suggest the critical role played by these enriched/depleted miRNAs, in particular the novel miRNAs, in the functional identities of CNS structures.
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Affiliation(s)
- Anaïs Soula
- University of Bordeaux, Bordeaux, France.,Centre Nationale de la Recherche Scientifique (CNRS), Unité Mixte de Recherche 5297, Interdisciplinary Institute of Neuroscience, Bordeaux, France
| | - Mélissa Valere
- University of Bordeaux, Bordeaux, France.,Centre Nationale de la Recherche Scientifique (CNRS), Unité Mixte de Recherche 5297, Interdisciplinary Institute of Neuroscience, Bordeaux, France
| | - María-José López-González
- University of Bordeaux, Bordeaux, France.,Centre Nationale de la Recherche Scientifique (CNRS), Unité Mixte de Recherche 5297, Interdisciplinary Institute of Neuroscience, Bordeaux, France
| | - Vicky Ury-Thiery
- University of Bordeaux, Bordeaux, France.,Centre Nationale de la Recherche Scientifique (CNRS), Unité Mixte de Recherche 5297, Interdisciplinary Institute of Neuroscience, Bordeaux, France
| | - Alexis Groppi
- Centre de Bioinformatique de Bordeaux, University of Bordeaux, Bordeaux, France
| | - Marc Landry
- University of Bordeaux, Bordeaux, France.,Centre Nationale de la Recherche Scientifique (CNRS), Unité Mixte de Recherche 5297, Interdisciplinary Institute of Neuroscience, Bordeaux, France
| | - Macha Nikolski
- Centre de Bioinformatique de Bordeaux, University of Bordeaux, Bordeaux, France.,CNRS/Laboratoire Bordelais de Recherche en Informatique, University of Bordeaux, Talence, France
| | - Alexandre Favereaux
- University of Bordeaux, Bordeaux, France.,Centre Nationale de la Recherche Scientifique (CNRS), Unité Mixte de Recherche 5297, Interdisciplinary Institute of Neuroscience, Bordeaux, France
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17
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Affiliation(s)
- Laura Cassels
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Yves-Alain Barde
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK.
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18
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Yang D, Yang Q, Wei X, Liu Y, Ma D, Li J, Wan Y, Luo Y. The role of miR-190a-5p contributes to diabetic neuropathic pain via targeting SLC17A6. J Pain Res 2017; 10:2395-2403. [PMID: 29042815 PMCID: PMC5634391 DOI: 10.2147/jpr.s133755] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Introduction MicroRNAs play a key role in neuropathic pain. In a previous study, miR-190a-5p was significantly downregulated in diabetic neuropathic pain (DNP). However, the role and pathological mechanism of miR-190a-5p in DNP still remain unclear. Materials and methods DNP model was established. The paw withdrawal thresholds were measured to assess the mechanical nociceptive response. Dual-luciferase reporter assay was used to confirm the target gene of microRNA. The expressions of microRNA, gene, and protein were detected by the quantitative real-time polymerase chain reaction or Western blot. The levels of IL-1β and IL-6 were detected with the enzyme-linked immuno sorbent assay. Results Compared with the control sample, the expression of miR-190a-5p was decreased and SLC17A6 was increased in the spinal tissue from those developing DNP. The bioinformatics and luciferase reporter assay demonstrated that SLC17A6 is a direct target of miR-190a-5p. Up-regulation of miR-190a-5p and inhibition of SLC17A6 could significantly weaken the painful behavior and reduce IL-1β and IL-6 level in DNP. Conclusion miR-190a-5p is involved in DNP via targeting SLC17A6, and miR-190a-5p and SLC17A6 may be the therapeutic targets of this disease.
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Affiliation(s)
- Di Yang
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Qinyan Yang
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Xinchuan Wei
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Yang Liu
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Ding Ma
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Jiaceng Li
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Yongling Wan
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Yao Luo
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
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19
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Chang MY, Park S, Choi JJ, Kim YK, Suh MW, Lee JH, Oh SH, Park MK. MicroRNAs 218a-5p, 219a-5p, and 221-3p regulate vestibular compensation. Sci Rep 2017; 7:8701. [PMID: 28821887 PMCID: PMC5562769 DOI: 10.1038/s41598-017-09422-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 07/25/2017] [Indexed: 01/06/2023] Open
Abstract
Unilateral vestibular deafferentation (UVD) interrupts afferent signals from one side, resulting in an imbalance of the resting activity between bilateral vestibular nuclei. Vestibular compensation is the process of balancing the resting activity to reestablish homeostasis. Here, we investigated microRNAs (miRNAs) that regulate vestibular compensation using the Sprague-Dawley rat. After determining the progression of vestibular compensation following UVD, microarray analysis was performed and nine miRNAs were selected as candidates. Following validation by quantitative reverse transcription-PCR, three miRNAs remained. We assessed the effect of these miRNAs on vestibular compensation using miRNA oligomers. We compared the results of the rotarod test and 5-bromo-2'-deoxyuridine immunohistochemistry following UVD between the control group and the groups in which the candidate miRNA oligomers were administered. Administration of miR-218a-5p, 219a-5p, and 221-3p oligomers significantly affected vestibular compensation. Target pathway analysis of these miRNAs supported our results. Our findings suggest that the miRNAs 218a-5p, 219a-5p, and 221-3p regulate vestibular compensation.
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Affiliation(s)
- Mun Young Chang
- Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, Seoul, 06973, Republic of Korea.,Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Sohyeon Park
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jun Jae Choi
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Young-Kook Kim
- Department of Biochemistry, Chonnam National University Medical School, Gwangju, 61186, Republic of Korea
| | - Myung-Whan Suh
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jun Ho Lee
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Seung Ha Oh
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Moo Kyun Park
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
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20
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Liao Y, Du X, Li J, Lönnerdal B. Human milk exosomes and their microRNAs survive digestion in vitro and are taken up by human intestinal cells. Mol Nutr Food Res 2017; 61. [DOI: 10.1002/mnfr.201700082] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/11/2017] [Accepted: 06/12/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Yalin Liao
- Department of Nutrition and Genome Center; University of California; Davis CA USA
| | - Xiaogu Du
- Department of Nutrition and Genome Center; University of California; Davis CA USA
| | - Jie Li
- Department of Nutrition and Genome Center; University of California; Davis CA USA
| | - Bo Lönnerdal
- Department of Nutrition and Genome Center; University of California; Davis CA USA
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21
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Circulating miR-23b-3p, miR-145-5p and miR-200b-3p are potential biomarkers to monitor acute pain associated with laminitis in horses. Animal 2017; 12:366-375. [PMID: 28689512 DOI: 10.1017/s1751731117001525] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Circulating microRNAs (miRNAs) are emerging as promising biomarkers for several disorders and related pain. In equine practice, acute laminitis is a common disease characterised by intense pain that severely compromises horse welfare. Recently, the Horse Grimace Scale (HGS), a facial expression-based pain coding system, was shown to be a valid welfare indicator to identify pain linked to acute laminitis. The present study aimed to: determine whether miRNAs can be used as biomarkers for acute pain in horses (Equus caballus) affected by laminitis; integrate miRNAs to their target genes and to categorise target genes for biological processes; gather additional evidence on concurrent validity of HGS by investigating how it correlates to miRNAs. Nine horses presenting acute laminitis with no prior treatment were recruited. As control group, nine healthy horses were further included in the experimental design. Samples were collected from horses with laminitis at admission before any treatment ('pre-treatment') and 7 days after routine laminitis treatment ('post-treatment'). The expression levels of nine circulating miRNAs, namely hsa-miR-532-3p, hsa-miR-219-5p, mmu-miR-134-5p, mmu-miR-124a-3p, hsa-miR-200b-3p, hsa-miR-146a-5p, hsa-miR-23b-3p, hsa-miR-145-5p and hsa-miR-181a-5p, were detected and assessed as potential biomarkers of pain by quantitative PCR using TaqMan® probes. The area under the receiver operating curve (AUC) was then used to evaluate the diagnostic performance of miRNAs. Molecular data were integrated with HGS scores assessed by one trained treatment and time point blind veterinarian. The comparative analysis demonstrated that the levels of miR-23b-3p (P=0.029), miR-145-5p (P=0.015) and miR-200b-3p (P=0.023) were significantly higher in pre-treatment and the AUCs were 0.854, 0.859 and 0.841, respectively. MiR-200b-3p decreased after routine laminitis treatment (P=0.043). Combining two miRNAs in a panel, namely miR-145-5p and miR-200b-3p, increased efficiency in distinguishing animals with acute pain from controls. In addition, deregulated miRNAs were positively correlated to HGS scores. Computational target prediction and functional enrichment identified common biological pathways between different miRNAs. In particular, the glutamatergic pathway was affected by all three miRNAs, suggesting a crucial role in the pathogenesis of pain. In conclusion, the dynamic expression of circulating miR-23b-3p, miR-145-5p and miR-200b-3p was detected in horses with acute laminitis and miRNAs can be considered potentially promising pain biomarkers. Further studies are needed in order to assess their relevancy in other painful conditions severely compromising horse welfare. An important implication would be the possibility to use them for the concurrent validation of non-invasive indicators of pain in horses.
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mir-500-Mediated GAD67 Downregulation Contributes to Neuropathic Pain. J Neurosci 2017; 36:6321-31. [PMID: 27277808 DOI: 10.1523/jneurosci.0646-16.2016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 04/28/2016] [Indexed: 12/18/2022] Open
Abstract
UNLABELLED Neuropathic pain is a common neurobiological disease involving multifaceted maladaptations ranging from gene modulation to synaptic dysfunction, but the interactions between synaptic dysfunction and the genes that are involved in persistent pain remain elusive. In the present study, we found that neuropathic pain induced by the chemotherapeutic drug paclitaxel or L5 ventral root transection significantly impaired the function of GABAergic synapses of spinal dorsal horn neurons via the reduction of the GAD67 expression. We also found that mir-500 expression was significantly increased and involved in the modulation of GAD67 expression via targeting the specific site of Gad1 gene in the dorsal horn. In addition, knock-out of mir-500 or using mir-500 antagomir rescued the GABAergic synapses in the spinal dorsal horn neurons and attenuated the sensitized pain behavior in the rats with neuropathic pain. To our knowledge, this is the first study to investigate the function significance and the underlying molecular mechanisms of mir-500 in the process of neuropathic pain, which sheds light on the development of novel therapeutic options for neuropathic pain. SIGNIFICANCE STATEMENT Neuropathic pain is a common neurobiological disease involving multifaceted maladaptations ranging from gene modulation to synaptic dysfunction, but the underlying molecular mechanisms remain elusive. The present study illustrates for the first time a mir-500-mediated mechanism underlying spinal GABAergic dysfunction and sensitized pain behavior in neuropathic pain induced by the chemotherapeutic drug paclitaxel or L5 ventral root transection, which sheds light on the development of novel therapeutic options for neuropathic pain.
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23
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Peng C, Li L, Zhang MD, Bengtsson Gonzales C, Parisien M, Belfer I, Usoskin D, Abdo H, Furlan A, Häring M, Lallemend F, Harkany T, Diatchenko L, Hökfelt T, Hjerling-Leffler J, Ernfors P. miR-183 cluster scales mechanical pain sensitivity by regulating basal and neuropathic pain genes. Science 2017; 356:1168-1171. [PMID: 28572455 DOI: 10.1126/science.aam7671] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 04/19/2017] [Indexed: 12/17/2022]
Abstract
Nociception is protective and prevents tissue damage but can also facilitate chronic pain. Whether a general principle governs these two types of pain is unknown. Here, we show that both basal mechanical and neuropathic pain are controlled by the microRNA-183 (miR-183) cluster in mice. This single cluster controls more than 80% of neuropathic pain-regulated genes and scales basal mechanical sensitivity and mechanical allodynia by regulating auxiliary voltage-gated calcium channel subunits α2δ-1 and α2δ-2. Basal sensitivity is controlled in nociceptors, and allodynia involves TrkB+ light-touch mechanoreceptors. These light-touch-sensitive neurons, which normally do not elicit pain, produce pain during neuropathy that is reversed by gabapentin. Thus, a single microRNA cluster continuously scales acute noxious mechanical sensitivity in nociceptive neurons and suppresses neuropathic pain transduction in a specific, light-touch-sensitive neuronal type recruited during mechanical allodynia.
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Affiliation(s)
- Changgeng Peng
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Lili Li
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ming-Dong Zhang
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Carolina Bengtsson Gonzales
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Marc Parisien
- Alan Edwards Centre for Research on Pain, McGill University, Montréal, Québec H3A 0G1, Canada
| | - Inna Belfer
- Office of Research on Women's Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - Dmitry Usoskin
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Hind Abdo
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Alessandro Furlan
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Martin Häring
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Francois Lallemend
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Tibor Harkany
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
- Department of Molecular Neurosciences, Center for Brain Research, Medical University of Vienna, 1090 Vienna, Austria
| | - Luda Diatchenko
- Alan Edwards Centre for Research on Pain, McGill University, Montréal, Québec H3A 0G1, Canada
| | - Tomas Hökfelt
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jens Hjerling-Leffler
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Patrik Ernfors
- Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden.
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Abstract
From the point of view of healthcare policies, improvement in pain care has been required for years; however, there is a great discrepancy between the current need for pain care and the actual provision by healthcare services. This article seeks to demonstrate that while healthcare policies are one of the critical factors involved, a variety of conceptual, diagnostic and therapeutic causes should also be taken into account. Firstly, considering that pain care is primarily concerned with the suffering of pain by patients, the focus lies with their conscious experience in order to define the patients' understanding of pain. Additionally, in this article current biomedical and psychosocial comprehension concerning chronic pain will be illustrated and why it is necessary to broaden our horizons in order to do justice to patients with chronic pain.
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25
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Roca-Lapirot O, Radwani H, Aby F, Nagy F, Landry M, Fossat P. Calcium signalling through L-type calcium channels: role in pathophysiology of spinal nociceptive transmission. Br J Pharmacol 2017; 175:2362-2374. [PMID: 28214378 DOI: 10.1111/bph.13747] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/24/2017] [Accepted: 02/08/2017] [Indexed: 02/02/2023] Open
Abstract
L-type voltage-gated calcium channels are ubiquitous channels in the CNS. L-type calcium channels (LTCs) are mostly post-synaptic channels regulating neuronal firing and gene expression. They play a role in important physio-pathological processes such as learning and memory, Parkinson's disease, autism and, as recognized more recently, in the pathophysiology of pain processes. Classically, the fundamental role of these channels in cardiovascular functions has limited the use of classical molecules to treat LTC-dependent disorders. However, when applied locally in the dorsal horn of the spinal cord, the three families of LTC pharmacological blockers - dihydropyridines (nifedipine), phenylalkylamines (verapamil) and benzothiazepines (diltiazem) - proved effective in altering short-term sensitization to pain, inflammation-induced hyperexcitability and neuropathy-induced allodynia. Two subtypes of LTCs, Cav 1.2 and Cav 1.3, are expressed in the dorsal horn of the spinal cord, where Cav 1.2 channels are localized mostly in the soma and proximal dendritic shafts, and Cav 1.3 channels are more distally located in the somato-dendritic compartment. Together with their different kinetics and pharmacological properties, this spatial distribution contributes to their separate roles in shaping short- and long-term sensitization to pain. Cav 1.3 channels sustain the expression of plateau potentials, an input/output amplification phenomenon that contributes to short-term sensitization to pain such as prolonged after-discharges, dynamic receptive fields and windup. The Cav 1.2 channels support calcium influx that is crucial for the excitation-transcription coupling underlying nerve injury-induced dorsal horn hyperexcitability. These subtype-specific cellular mechanisms may have different consequences in the development and/or the maintenance of pathological pain. Recent progress in developing more specific compounds for each subunit will offer new opportunities to modulate LTCs for the treatment of pathological pain with reduced side-effects. LINKED ARTICLES This article is part of a themed section on Recent Advances in Targeting Ion Channels to Treat Chronic Pain. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.12/issuetoc.
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Affiliation(s)
- Olivier Roca-Lapirot
- Interdisciplinary Institute for Neuroscience (IINS, CNRS UMR 5297), University of Bordeaux, Bordeaux Cedex, France
| | - Houda Radwani
- Interdisciplinary Institute for Neuroscience (IINS, CNRS UMR 5297), University of Bordeaux, Bordeaux Cedex, France
| | - Franck Aby
- Interdisciplinary Institute for Neuroscience (IINS, CNRS UMR 5297), University of Bordeaux, Bordeaux Cedex, France
| | - Frédéric Nagy
- Interdisciplinary Institute for Neuroscience (IINS, CNRS UMR 5297), University of Bordeaux, Bordeaux Cedex, France
| | - Marc Landry
- Interdisciplinary Institute for Neuroscience (IINS, CNRS UMR 5297), University of Bordeaux, Bordeaux Cedex, France
| | - Pascal Fossat
- Interdisciplinary Institute for Neuroscience (IINS, CNRS UMR 5297), University of Bordeaux, Bordeaux Cedex, France
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Sharma S, Mathew AB, Chugh J. miRNAs: Nanomachines That Micromanage the Pathophysiology of Diabetes Mellitus. Adv Clin Chem 2017; 82:199-264. [PMID: 28939211 DOI: 10.1016/bs.acc.2017.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Diabetes mellitus (DM) refers to a combination of heterogeneous complex metabolic disorders that are associated with episodes of hyperglycemia and glucose intolerance occurring as a result of defects in insulin secretion, action, or both. The prevalence of DM is increasing at an alarming rate, and there exists a need to develop better therapeutics and prognostic markers for earlier detection and diagnosis. In this review, after giving a brief introduction of diabetes mellitus and microRNA (miRNA) biogenesis pathway, we first describe various in vitro and animal model systems that have been developed to study diabetes. Further, we elaborate on the significant roles played by miRNAs as regulators of gene expression in the context of development of diabetes and its secondary complications. The different approaches to quantify miRNAs and their potential to be used as therapeutic targets for alleviation of diabetes have also been discussed.
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Hu XM, Cao SB, Zhang HL, Lyu DM, Chen LP, Xu H, Pan ZQ, Shen W. Downregulation of miR-219 enhances brain-derived neurotrophic factor production in mouse dorsal root ganglia to mediate morphine analgesic tolerance by upregulating CaMKIIγ. Mol Pain 2016; 12:12/0/1744806916666283. [PMID: 27599867 PMCID: PMC5014090 DOI: 10.1177/1744806916666283] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 07/26/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Increasing evidence suggests that microRNAs are functionally involved in the initiation and maintenance of pain hypersensitivity, including chronic morphine analgesic tolerance, through the posttranscriptional regulation of pain-related genes. We have previously demonstrated that miR-219 regulates inflammatory pain in the spinal cord by targeting calcium/calmodulin-dependent protein kinase II gamma (CaMKIIγ). However, whether miR-219 regulates CaMKIIγ expression in the dorsal root ganglia to mediate morphine tolerance remains unclear. RESULTS MiR-219 expression was downregulated and CaMKIIγ expression was upregulated in mouse dorsal root ganglia following chronic morphine treatment. The changes in miR-219 and CaMKIIγ expression closely correlated with the development of morphine tolerance, which was measured using the reduction of percentage of maximum potential efficiency to thermal stimuli. Morphine tolerance was markedly delayed by upregulating miR-219 expression using miR-219 mimics or downregulating CaMKIIγ expression using CaMKIIγ small interfering RNA. The protein and mRNA expression of brain-derived neurotrophic factor were also induced in dorsal root ganglia by prolonged morphine exposure in a time-dependent manner, which were transcriptionally regulated by miR-219 and CaMKIIγ. Scavenging brain-derived neurotrophic factor via tyrosine receptor kinase B-Fc partially attenuated morphine tolerance. Moreover, functional inhibition of miR-219 via miR-219-sponge in naive mice elicited thermal hyperalgesia and spinal neuronal sensitization, which were both suppressed by CaMKIIγ small interfering RNA or tyrosine receptor kinase B-Fc. CONCLUSIONS These results demonstrate that miR-219 contributes to the development of chronic tolerance to morphine analgesia in mouse dorsal root ganglia by targeting CaMKIIγ and enhancing CaMKIIγ-dependent brain-derived neurotrophic factor expression.
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Affiliation(s)
- Xue-Ming Hu
- Department of Pain Medicine, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Shanghai Medical College, Shanghai, China Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, China
| | - Shou-Bin Cao
- Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China Department of Anesthesiology, Qilu Children's Hospital of Shandong University, Ji'nan, China
| | - Hai-Long Zhang
- Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China
| | - Dong-Mei Lyu
- Department of Pharmacology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Li-Ping Chen
- Department of Pain Medicine, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China
| | - Heng Xu
- Department of Pain Medicine, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China
| | - Zhi-Qiang Pan
- Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China
| | - Wen Shen
- Department of Pain Medicine, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, China Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, China
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28
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Expressions of miR-132, miR-134, and miR-485 in rat primary motor cortex during transhemispheric functional reorganization after contralateral seventh cervical spinal nerve root transfer following brachial plexus avulsion injuries. Neuroreport 2016; 27:12-7. [PMID: 26544683 DOI: 10.1097/wnr.0000000000000485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The transfer of a contralateral healthy seventh cervical spinal nerve root (cC7) to the recipient nerve in the injured side is considered a promising procedure for restoration of the physiological functions of an injured hand after brachial plexus root avulsion injury (BPAI). Growing evidence shows that transhemispheric cortical reorganization plays an important role in the functional recovery of the injured arm after cC7 nerve transfer surgery. However, the molecular mechanism underlying the transhemispheric cortical reorganization after cC7 transfer remains elusive. In the present study, we investigated the expression of miR-132, miR-134, and miR-485 in the rat primary motor cortex after cC7 transfer following BPAI by quantitative PCR. The results demonstrated the dynamic alteration in the expression of miR-132, miR-134, and miR-485 in the primary motor cortex of rats after cC7 transfer following BPAI. It indicates that microRNAs are involved in the dynamic transhemispheric functional reorganization after cC7 root transfer following BPAI. Together, this study is the first to provide evidence for the involvement of microRNAs during dynamic transhemispheric functional reorganization after cC7 transfer following BPAI. The results are useful for understanding the mechanism underlying transhemispheric functional reorganization after contralateral seventh cervical spinal nerve root transfer following BPAI.
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29
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Increased miR-132-3p expression is associated with chronic neuropathic pain. Exp Neurol 2016; 283:276-86. [PMID: 27349406 DOI: 10.1016/j.expneurol.2016.06.025] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 06/21/2016] [Accepted: 06/22/2016] [Indexed: 12/30/2022]
Abstract
Alterations in the neuro-immune balance play a major role in the pathophysiology of chronic neuropathic pain. MicroRNAs (miRNA) can regulate both immune and neuronal processes and may function as master switches in chronic pain development and maintenance. We set out to analyze the role of miR-132-3p, first in patients with peripheral neuropathies and second in an animal model of neuropathic pain. We initially determined miR-132-3p expression by measuring its levels in white blood cells (WBC) of 30 patients and 30 healthy controls and next in sural nerve biopsies of 81 patients with painful or painless inflammatory or non-inflammatory neuropathies based on clinical diagnosis. We found a 2.6 fold increase in miR-132-3p expression in WBC of neuropathy patients compared to healthy controls (p<0.001). MiR-132-3p expression was also slightly up-regulated in sural nerve biopsies from neuropathy patients suffering from neuropathic pain compared to those without pain (1.2 fold; p<0.001). These promising findings were investigated further in an animal model of neuropathic pain, the spared nerve injury model (SNI). For this purpose miR-132-3p expression levels were measured in dorsal root ganglia and spinal cord of rats. Subsequently, miR-132-3p expression was pharmacologically modulated with miRNA antagonists or mimetics, and evoked pain and pain aversion were assessed. Spinal miR-132-3p levels were highest 10days after SNI, a time when persistent allodynia was established (p<0.05). Spinal administration of miR-132-3p antagonists via intrathecal (i.t.) catheters dose dependently reversed mechanical allodyina (p<0.001) and eliminated pain behavior in the place escape avoidance paradigm (p<0.001). Intrathecal administration of miR-132-3p mimetic dose-dependently induced pain behavior in naïve rats (p<0.001). Taken together these results indicate a pro-nociceptive effect of miR-132-3p in chronic neuropathic pain.
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30
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Neumann E, Brandenburger T, Santana-Varela S, Deenen R, Köhrer K, Bauer I, Hermanns H, Wood JN, Zhao J, Werdehausen R. MicroRNA-1-associated effects of neuron-specific brain-derived neurotrophic factor gene deletion in dorsal root ganglia. Mol Cell Neurosci 2016; 75:36-43. [PMID: 27346077 DOI: 10.1016/j.mcn.2016.06.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 06/08/2016] [Accepted: 06/20/2016] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) regulate gene expression in physiological as well as in pathological processes, including chronic pain. Whether deletion of a gene can affect expression of the miRNAs that associate with the deleted gene mRNA remains elusive. We investigated the effects of brain-derived neurotrophic factor (Bdnf) gene deletion on the expression of miR-1 in dorsal root ganglion (DRG) neurons and its pain-associated downstream targets heat shock protein 60 (Hsp60) and connexin 43 (Cx43) in tamoxifen-inducible conditional knockout mice, Bdnf(fl/fl); Advillin-CreER(T2) (Bdnf cKO). RESULTS Efficient Bdnf gene deletion was confirmed in DRG of Bdnf cKO mice by Real-Time qRT-PCR and ELISA 10days after completed tamoxifen treatment. In DRG, miR-1 expression was reduced 0.44-fold (p<0.05; Real-time qRT-PCR) in Bdnf cKO compared to floxed wildtype littermate control Bdnf(fl/fl) mice (WT). While Hsp60 protein expression was increased 1.85-fold (p<0.05; Western blot analysis), expression levels of Cx43 and the miR-1-associated transcription factors MEF2a and SRF remained unchanged. When analyzing Bdnf cKO mice 32days after complete tamoxifen treatment to investigate whether observed expression alterations remain permanently, we found no significant differences between Bdnf cKO and WT mice. However, miRNA microarray analysis revealed that 167 miRNAs altered (p<0.05) in DRG of these mice following Bdnf gene deletion. CONCLUSIONS Our results indicate that deletion of Bdnf in DRG neurons leads to a temporary dysregulation of miR-1, suggesting an impairment of a presumable feedback loop between BDNF protein and its targeting miR-1. This appears to affect its downstream protein Hsp60 and as a consequence might influence the phenotype after inducible Bdnf gene deletion. While this appears to be a MEF2a-/SRF-independent and transient effect, expression levels of various other miRNAs may remain permanently altered.
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Affiliation(s)
- Elena Neumann
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, Düsseldorf 40225, Germany.
| | - Timo Brandenburger
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, Düsseldorf 40225, Germany.
| | - Sonia Santana-Varela
- Molecular Nociception Group, Wolfson Institute for Biomedical Research (WIBR), Cruciform Building, University College London (UCL), London WC1E 6BT, UK.
| | - René Deenen
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany.
| | - Karl Köhrer
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany.
| | - Inge Bauer
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, Düsseldorf 40225, Germany.
| | - Henning Hermanns
- Department of Anesthesiology, Academic Medical Center, Meibergdreef 9, Amsterdam 1100 DD, The Netherlands.
| | - John N Wood
- Molecular Nociception Group, Wolfson Institute for Biomedical Research (WIBR), Cruciform Building, University College London (UCL), London WC1E 6BT, UK.
| | - Jing Zhao
- Molecular Nociception Group, Wolfson Institute for Biomedical Research (WIBR), Cruciform Building, University College London (UCL), London WC1E 6BT, UK.
| | - Robert Werdehausen
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, Düsseldorf 40225, Germany.
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Abstract
Biomarkers are measurable characteristics reflective of the physiological or diseased state and a crucial feature in rendering personalized medicine more precise. Dysregulated expression of circulating microRNAs (miRNAs) in bodily fluids is being explored as noninvasive clinical biomarker for a variety of disorders including chronic pain. High-precision qPCR-based signal amplification of these miRNAs enables the detection of small changes making them ideal biomarker candidates. Presence of circulating miRNAs in exosomes, small vesicles that mediate intercellular communication, opens up novel avenues for target intervention and biomarker discovery. miRNA signatures specific to different pain conditions, and their reversal on treatment in patients and animal models can be beneficial in patient stratification, prognosis, and in bridging preclinical and clinical results. Identification of multiple miRNAs as opposed to reliance on one specific molecule as a biomarker could improve treatment efficacies in an extremely heterogeneous pain patient population. Additionally, owing to the stability of miRNAs, retrospective studies could be performed using banked samples from completed clinical trials. Irrespective of the phase and outcome, these studies can provide insights on molecular underpinnings influencing treatment outcome, or specific therapeutic intervention. Identification of miRNAs altered in chronic pain states will have a significant impact on the identification of right leads, targets, doses, and patients. Effective implementation of miRNA-based biomarkers would provide treatment guidance for clinicians, better clinical trial designs for pharmaceutical companies, all leading to individualized care and better treatment outcome for chronic pain patients.
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Affiliation(s)
- Sujay Ramanathan
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Seena K Ajit
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.
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32
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Computational functional genomics based analysis of pain-relevant micro-RNAs. Hum Genet 2015; 134:1221-38. [DOI: 10.1007/s00439-015-1600-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 09/01/2015] [Indexed: 02/07/2023]
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33
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Ginsberg SD, Che S. Methods and compositions for amplification and detection of microRNAs (miRNAs) and noncoding RNAs (ncRNAs) using the signature sequence amplification method (SSAM). ACTA ACUST UNITED AC 2015; 8:2-9. [PMID: 25564022 DOI: 10.2174/2352092208666141001154206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 06/18/2014] [Accepted: 06/19/2014] [Indexed: 12/17/2022]
Abstract
The signature sequence amplification method (SSAM) described herein is an approach for amplifying noncoding RNA (ncRNA), microRNA (miRNA), and small polynucleotide sequences. A key point of the SSAM technology is the generation of signature sequences. The signature sequences include target sequences (miRNA, ncRNA, and/or any small polynucleotide sequence) flanked by two DNA fragments. Target sequences can be amplified through DNA synthesis, RNA synthesis, or the combination of DNA and RNA synthesis. The amplification of signature sequences provides an efficient and reproducible mechanism to determine the presence or absence of the target miRNAs/ncRNAs, to analyze the quantities of the miRNAs in biological samples, and for miRNA/ncRNA profiling.
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Affiliation(s)
| | - Shaoli Che
- Center for Dementia Research, Nathan Kline Institute, NYU Langone Medical Center, 140 Old Orangeburg Road, Orangeburg, NY 10962, 845-398-2170, USA.
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34
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Hackett TA, Clause AR, Takahata T, Hackett NJ, Polley DB. Differential maturation of vesicular glutamate and GABA transporter expression in the mouse auditory forebrain during the first weeks of hearing. Brain Struct Funct 2015; 221:2619-73. [PMID: 26159773 DOI: 10.1007/s00429-015-1062-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 05/07/2015] [Indexed: 02/04/2023]
Abstract
Vesicular transporter proteins are an essential component of the presynaptic machinery that regulates neurotransmitter storage and release. They also provide a key point of control for homeostatic signaling pathways that maintain balanced excitation and inhibition following changes in activity levels, including the onset of sensory experience. To advance understanding of their roles in the developing auditory forebrain, we tracked the expression of the vesicular transporters of glutamate (VGluT1, VGluT2) and GABA (VGAT) in primary auditory cortex (A1) and medial geniculate body (MGB) of developing mice (P7, P11, P14, P21, adult) before and after ear canal opening (~P11-P13). RNA sequencing, in situ hybridization, and immunohistochemistry were combined to track changes in transporter expression and document regional patterns of transcript and protein localization. Overall, vesicular transporter expression changed the most between P7 and P21. The expression patterns and maturational trajectories of each marker varied by brain region, cortical layer, and MGB subdivision. VGluT1 expression was highest in A1, moderate in MGB, and increased with age in both regions. VGluT2 mRNA levels were low in A1 at all ages, but high in MGB, where adult levels were reached by P14. VGluT2 immunoreactivity was prominent in both regions. VGluT1 (+) and VGluT2 (+) transcripts were co-expressed in MGB and A1 somata, but co-localization of immunoreactive puncta was not detected. In A1, VGAT mRNA levels were relatively stable from P7 to adult, while immunoreactivity increased steadily. VGAT (+) transcripts were rare in MGB neurons, whereas VGAT immunoreactivity was robust at all ages. Morphological changes in immunoreactive puncta were found in two regions after ear canal opening. In the ventral MGB, a decrease in VGluT2 puncta density was accompanied by an increase in puncta size. In A1, perisomatic VGAT and VGluT1 terminals became prominent around the neuronal somata. Overall, the observed changes in gene and protein expression, regional architecture, and morphology relate to-and to some extent may enable-the emergence of mature sound-evoked activity patterns. In that regard, the findings of this study expand our understanding of the presynaptic mechanisms that regulate critical period formation associated with experience-dependent refinement of sound processing in auditory forebrain circuits.
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Affiliation(s)
- Troy A Hackett
- Department of Hearing and Speech Sciences, Vanderbilt University School of Medicine, 465 21st Avenue South, MRB-3 Suite 7110, Nashville, TN, 37232, USA.
| | - Amanda R Clause
- Eaton-Peabody Laboratories, Massachusetts Eye and Ear Infirmary, Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA
| | - Toru Takahata
- Department of Hearing and Speech Sciences, Vanderbilt University School of Medicine, 465 21st Avenue South, MRB-3 Suite 7110, Nashville, TN, 37232, USA
| | | | - Daniel B Polley
- Eaton-Peabody Laboratories, Massachusetts Eye and Ear Infirmary, Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA
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35
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Neumann E, Hermanns H, Barthel F, Werdehausen R, Brandenburger T. Expression changes of microRNA-1 and its targets Connexin 43 and brain-derived neurotrophic factor in the peripheral nervous system of chronic neuropathic rats. Mol Pain 2015; 11:39. [PMID: 26111928 PMCID: PMC4482165 DOI: 10.1186/s12990-015-0045-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 06/18/2015] [Indexed: 12/15/2022] Open
Abstract
Background MicroRNAs (miRNAs) are involved in the neuroplastic changes which induce and maintain neuropathic pain. However, it is unknown whether nerve injury leads to altered miRNA expression and modulation of pain relevant target gene expression within peripheral nerves. In the present study, expression profiles of miR-1 and the pain-relevant targets, brain derived neurotrophic factor (BDNF) and Connexin 43 (Cx43), were studied in peripheral neuropathic pain, which was induced by chronic constriction injury (CCI) of the sciatic nerve in rats. The expression of miR-1 was investigated in the sciatic nerve, dorsal root ganglion (DRG) and the ipsilateral spinal cord by qPCR. Changes of BDNF and Cx43 expression patterns were studied using qPCR, Western blot analysis, ELISA and immunohistochemistry. Results In sciatic nerves of naïve rats, expression levels of miR-1 were more than twice as high as in DRG and spinal cord. In neuropathic rats, CCI lead to a time-dependent downregulation of miR-1 in the sciatic nerve but not in DRG and spinal cord. Likewise, protein expression of the miR-1 targets BDNF and Cx43 was upregulated in the sciatic nerve and DRG after CCI. Immunohistochemical staining revealed an endoneural abundancy of Cx43 in injured sciatic nerves which was absent after Sham operation. Conclusions This study demonstrates that CCI leads to a regulation of miRNAs (miR-1) in the peripheral nervous system. This regulation is associated with alterations in the expression and localization of the miR-1 dependent pain-relevant proteins BDNF and Cx43. Further studies will have to explore the function of miRNAs in the context of neuropathic pain in the peripheral nervous system.
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Affiliation(s)
- Elena Neumann
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany.
| | - Henning Hermanns
- Department of Anesthesiology, Academic Medical Center, Meibergdreef 9, 1100 DD, Amsterdam, The Netherlands.
| | - Franziska Barthel
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany.
| | - Robert Werdehausen
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany.
| | - Timo Brandenburger
- Department of Anesthesiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany.
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36
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Circulating microRNA Signatures in Rodent Models of Pain. Mol Neurobiol 2015; 53:3416-3427. [DOI: 10.1007/s12035-015-9281-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/02/2015] [Indexed: 01/29/2023]
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37
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Zhang GY, Wang J, Jia YJ, Han R, Li P, Zhu DN. MicroRNA-9 promotes the neuronal differentiation of rat bone marrow mesenchymal stem cells by activating autophagy. Neural Regen Res 2015; 10:314-20. [PMID: 25883633 PMCID: PMC4392682 DOI: 10.4103/1673-5374.143439] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2014] [Indexed: 12/31/2022] Open
Abstract
MicroRNA-9 (miR-9) has been shown to promote the differentiation of bone marrow mesenchymal stem cells into neuronal cells, but the precise mechanism is unclear. Our previous study confirmed that increased autophagic activity improved the efficiency of neuronal differentiation in bone marrow mesenchymal stem cells. Accumulating evidence reveals that miRNAs adjust the autophagic pathways. This study used miR-9-1 lentiviral vector and miR-9-1 inhibitor to modulate the expression level of miR-9. Autophagic activity and neuronal differentiation were measured by the number of light chain-3 (LC3)-positive dots, the ratio of LC3-II/LC3, and the expression levels of the neuronal markers enolase and microtubule-associated protein 2. Results showed that LC3-positive dots, the ratio of LC3-II/LC3, and expression of neuron specific enolase and microtubule-associated protein 2 increased in the miR-9+ group. The above results suggest that autophagic activity increased and bone marrow mesenchymal stem cells were prone to differentiate into neuronal cells when miR-9 was overexpressed, demonstrating that miR-9 can promote neuronal differentiation by increasing autophagic activity.
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Affiliation(s)
- Guang-Yu Zhang
- Rehabilitation and Treatment Center for Children with Cerebral Palsy of Henan Province, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Jun Wang
- Rehabilitation and Treatment Center for Children with Cerebral Palsy of Henan Province, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Yan-Jie Jia
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Rui Han
- Department of Pediatrics, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Ping Li
- Rehabilitation and Treatment Center for Children with Cerebral Palsy of Henan Province, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Deng-Na Zhu
- Rehabilitation and Treatment Center for Children with Cerebral Palsy of Henan Province, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
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38
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Abstract
Endogenously expressed small noncoding microRNAs (miRNAs) play an important role in posttranscriptionally regulating gene expression by binding to mRNAs with complementary sequences. miRNA-mRNA interactions allow for cellular flexibility to fine-tune gene expression by controlling translation in response to a multitude of signaling events. Disease states or perturbations in cellular homeostasis can lead to aberrant miRNA expression. The discovery of stable miRNAs in circulation generated enormous interest in exploring their utility as potential noninvasive biomarkers. Additionally, selectively inhibiting or supplementing an miRNA contributing to pathogenesis is being pursued as a therapeutic strategy for a variety of disorders. Studies from rodent models of pain and patients have now implicated a role for miRNAs in mediating various aspects of pain processing. These noncoding RNAs can provide mechanistic insights into the pathways modulated and could serve as therapeutic targets. Here, we discuss the challenges associated with miRNA research and the promises ahead in this vastly unexplored avenue in pain biology.
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Affiliation(s)
- Marguerite K McDonald
- Department of Pharmacology & Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Seena K Ajit
- Department of Pharmacology & Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.
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39
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Cellerino A, Bally-Cuif L, Pizzorusso T. Editorial for "Regulatory RNAs in the nervous system". Front Cell Neurosci 2015; 9:38. [PMID: 25713514 PMCID: PMC4322715 DOI: 10.3389/fncel.2015.00038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 01/22/2015] [Indexed: 01/19/2023] Open
Affiliation(s)
- Alessandro Cellerino
- Scuola Normale Superiore Pisa, Italy ; Biology of Aging, Fritz Lipmann Institute for Age Research-Leibniz Institute Jena, Germany
| | - Laure Bally-Cuif
- Institute of Neurobiology A. Fessard, CNRS UPR3294 Gif-sur-Yvette, France
| | - Tommaso Pizzorusso
- Department of Neuroscience, Psychology, Drug Research and Child Health Neurofarba, University of Florence Florence, Italy ; Pisa Unit, Institute of Neuroscience, National Research Council Pisa, Italy
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40
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Barrett JE. The pain of pain: challenges of animal behavior models. Eur J Pharmacol 2015; 753:183-90. [PMID: 25583180 DOI: 10.1016/j.ejphar.2014.11.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 11/07/2014] [Accepted: 11/26/2014] [Indexed: 12/12/2022]
Abstract
Berend Olivier has had a long-standing interest in the utility of animal models for a wide variety of therapeutic indications. His work has spanned multiple types of models, blending ethological, or species typical and naturalistic behaviors, along with methodologies based on learned behavior. He has consistently done so, from an analytical as well as predictive perspective, and has made multiple contributions while working in both the pharmaceutical industry and within an academic institution. Although focused primarily on psychiatric disorders, Berend has conducted research in the area of pain in humans and in animals, demonstrating an expansive appreciation for the breadth, scope and significance of the science and applications of the discipline of pharmacology to these diverse areas. This review focuses on the use of animal models in pain research from the perspective of the long-standing deficiencies in the development of therapeutics in this area and from a preclinical perspective where the translational weaknesses have been quite problematic. The challenges confronting animal models of pain, however, are not unique to this area of research, as they cut across several therapeutic areas. Despite the deficiencies, failures and concerns, existing animal models of pain continue to be of widespread use and are essential to progress in pain research as well as in other areas. Although not focusing on specific animal models of pain, this paper seeks to examine general issues facing the use of these models. It does so by exploring alternative approaches which capture recent developments, which build upon principles and concepts we have learned from Berend's contributions, and which provide the prospect of helping to address the absence of novel therapeutics in this area.
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Affiliation(s)
- James E Barrett
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA 19103, United States.
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41
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Bai G, Ren K, Dubner R. Epigenetic regulation of persistent pain. Transl Res 2015; 165:177-99. [PMID: 24948399 PMCID: PMC4247805 DOI: 10.1016/j.trsl.2014.05.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/19/2014] [Accepted: 05/20/2014] [Indexed: 02/09/2023]
Abstract
Persistent or chronic pain is tightly associated with various environmental changes and linked to abnormal gene expression within cells processing nociceptive signaling. Epigenetic regulation governs gene expression in response to environmental cues. Recent animal model and clinical studies indicate that epigenetic regulation plays an important role in the development or maintenance of persistent pain and possibly the transition of acute pain to chronic pain, thus shedding light in a direction for development of new therapeutics for persistent pain.
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Affiliation(s)
- Guang Bai
- Program in Neuroscience, Department of Neural and Pain Sciences, University of Maryland Dental School, University of Maryland, Baltimore, MD.
| | - Ke Ren
- Program in Neuroscience, Department of Neural and Pain Sciences, University of Maryland Dental School, University of Maryland, Baltimore, MD
| | - Ronald Dubner
- Program in Neuroscience, Department of Neural and Pain Sciences, University of Maryland Dental School, University of Maryland, Baltimore, MD
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42
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Altered microRNAs expression profiling in mice with diabetic neuropathic pain. Biochem Biophys Res Commun 2015; 456:615-20. [DOI: 10.1016/j.bbrc.2014.12.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 12/02/2014] [Indexed: 12/13/2022]
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43
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Choi E, Cha MJ, Hwang KC. Roles of Calcium Regulating MicroRNAs in Cardiac Ischemia-Reperfusion Injury. Cells 2014; 3:899-913. [PMID: 25216032 PMCID: PMC4197635 DOI: 10.3390/cells3030899] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 09/02/2014] [Accepted: 09/03/2014] [Indexed: 12/21/2022] Open
Abstract
Cardiac Ca2+ cycling and signaling are closely associated with cardiac function. Changes in cellular Ca2+ homeostasis may lead to aberrant cardiac rhythm and may play a critical role in the pathogenesis of cardiac diseases, due to their exacerbation of heart failure. MicroRNAs (miRNAs) play a key role in the regulation of gene expression at the post-transcriptional level and participate in regulating diverse biological processes. The emerging evidence indicates that the expression profiles of miRNAs vary among human diseases, including cardiovascular diseases. Cardiac Ca2+-handling and signaling proteins are also regulated by miRNAs. Given the relationship between cardiac Ca2+ homeostasis and signaling and miRNA, Ca2+-related miRNAs may serve as therapeutic targets during the treatment of heart failure. In this review, we summarize the knowledge currently available regarding the role of Ca2+ in cardiac function, as well as changes in Ca2+ cycling and homeostasis and the handling of these processes by miRNAs during cardiac ischemia-reperfusion injury.
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Affiliation(s)
- Eunhyun Choi
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do 210-701, Korea.
| | - Min-Ji Cha
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do 210-701, Korea.
| | - Ki-Chul Hwang
- Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do 210-701, Korea.
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