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Pan X, Dai W, Wang Z, Li S, Sun T, Miao N. PIWI-Interacting RNAs: A Pivotal Regulator in Neurological Development and Disease. Genes (Basel) 2024; 15:653. [PMID: 38927589 PMCID: PMC11202748 DOI: 10.3390/genes15060653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/17/2024] [Accepted: 05/17/2024] [Indexed: 06/28/2024] Open
Abstract
PIWI-interacting RNAs (piRNAs), a class of small non-coding RNAs (sncRNAs) with 24-32 nucleotides (nt), were initially identified in the reproductive system. Unlike microRNAs (miRNAs) or small interfering RNAs (siRNAs), piRNAs normally guide P-element-induced wimpy testis protein (PIWI) families to slice extensively complementary transposon transcripts without the seed pairing. Numerous studies have shown that piRNAs are abundantly expressed in the brain, and many of them are aberrantly regulated in central neural system (CNS) disorders. However, the role of piRNAs in the related developmental and pathological processes is unclear. The elucidation of piRNAs/PIWI would greatly improve the understanding of CNS development and ultimately lead to novel strategies to treat neural diseases. In this review, we summarized the relevant structure, properties, and databases of piRNAs and their functional roles in neural development and degenerative disorders. We hope that future studies of these piRNAs will facilitate the development of RNA-based therapeutics for CNS disorders.
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Affiliation(s)
| | | | | | | | | | - Nan Miao
- Center for Precision Medicine, School of Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China; (X.P.); (W.D.); (Z.W.); (S.L.); (T.S.)
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Asadabadi T, Mokhtari MJ, Bayat M, Safari A, Borhani-Haghighi A. Association between Genetic Polymorphism of The lncRNA MIAT rs1894720 with Ischemic Stroke Risk and lncRNA MIAT Expression Levels in The Blood after An Ischemic Stroke: A Case-Control Study. CELL JOURNAL 2023; 25:863-873. [PMID: 38192257 PMCID: PMC10777317 DOI: 10.22074/cellj.2023.2003573.1315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/22/2023] [Accepted: 10/28/2023] [Indexed: 01/10/2024]
Abstract
OBJECTIVE Genetic aspects can play an essential role in the occurrence and development of ischemic stroke (IS). Rs1894720 polymorphism is one of the eight single nucleotide polymorphisms (SNPs) in the long non-coding RNA (lncRNA) myocardial infarction-associated transcript (MIAT) locus. The aim of study is the lncRNA MIAT rs1894720 polymorphism decreases IS risk by reducing lncRNA MIAT expression. MATERIALS AND METHODS In this case-control study, we studied 232 Iranian patients and 232 controls. The blood samples were collected from patients admitted at different times after stroke symptoms. We enrolled 80, 78, and 74 patients who arrived at the hospital between 0-24, 24-48, and 48-72 hours after the first appearance of symptoms, respectively. DNA genotyping was done by the tetra-primer ARMS-PCR method. Circulating MIAT levels were evaluated by real-time polymerase chain reaction (PCR). RESULTS The GT genotype of MIAT rs1894720 showed a significant association with the risk of IS (OR=3.53, 95% CI=2.13-5.84, P<0.001). MIAT expression was higher relative to the control within the first hours after IS. The MIAT levels in IS patients with rs1894720 (GT) were significantly lower relative to patients who had the GG and TT genotypes. Linear regression model indicated a significant correlation between MIAT expression with atherosclerotic risk factors and types of stroke in IS patients. Receiver operating characteristic (ROC) curve analysis showed that the level of lncRNA MIAT after IS could be diagnostic with an area under the curve (AUC) of 0.82. The sensitivity and specificity were 80.17 and 67.24%, respectively (P<0.001). CONCLUSION Our study demonstrated that the MIAT rs1894720 polymorphism (GT) might increase the risk of IS in the Iranian population. MIAT expression was up-regulated in our IS patients. Hence, it could be a diagnostic biomarker for IS.
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Affiliation(s)
- Tahereh Asadabadi
- Department of Biology, Zarghan Branch, Islamic Azad University, Zarghan, Iran
| | | | - Mahnaz Bayat
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Anahid Safari
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Ren ZL, Kang XD, Zheng YX, Shi HF, Chen CA, Shi YY, Wang QG, Cheng FF, Wang XQ, Li CX. Emerging effects of non-coding RNA in vascular endothelial cells during strokes. Vascul Pharmacol 2023; 150:107169. [PMID: 37059212 DOI: 10.1016/j.vph.2023.107169] [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: 11/25/2022] [Revised: 02/05/2023] [Accepted: 03/24/2023] [Indexed: 04/16/2023]
Abstract
Vascular and neurological damage are the typical outcomes of ischemic strokes. Vascular endothelial cells (VECs), a substantial component of the blood-brain barrier (BBB), are necessary for normal cerebrovascular physiology. During an ischemic stroke (IS), changes in the brain endothelium can lead to a BBB rupture, inflammation, and vasogenic brain edema, and VECs are essential for neurotrophic effects and angiogenesis. Non-coding RNAs (nc-RNAs) are endogenous molecules, and brain ischemia quickly changes the expression patterns of several non-coding RNA types, such as microRNA (miRNA/miR), long non-coding RNA (lncRNA), and circular RNA (circRNA). Furthermore, vascular endothelium-associated nc-RNAs are important mediators in the maintenance of healthy cerebrovascular function. In order to better understand how VECs are regulated epigenetically during an IS, in this review, we attempted to assemble the molecular functions of nc-RNAs that are linked with VECs during an IS.
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Affiliation(s)
- Zi-Lin Ren
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiang-Dong Kang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yu-Xiao Zheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Han-Fen Shi
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Cong-Ai Chen
- Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing 100700, China
| | - Yu-Yu Shi
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Qing-Guo Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Fa-Feng Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Xue-Qian Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Chang-Xiang Li
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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Devara D, Choudhary Y, Kumar S. Role of MicroRNA-502-3p in Human Diseases. Pharmaceuticals (Basel) 2023; 16:ph16040532. [PMID: 37111289 PMCID: PMC10144852 DOI: 10.3390/ph16040532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 04/05/2023] Open
Abstract
MicroRNAs (miRNAs) are non-coding RNAs that play a major role in gene regulation in several diseases. MicroRNA-502-3p (MiR-502-3p) has been previously characterized in a variety of human diseases such as osteoporosis, diabetes, tuberculosis, cancers, and neurological disorders. Our studies recently explored the new role of miR-502-3p in regulating synapse function in Alzheimer’s disease (AD). AD is the most common cause of dementia in elderly individuals. Synapse is the initial target that is hit during AD progression. The most common causes of synapse dysfunction in AD are amyloid beta, hyperphosphorylated tau, and microglia activation. MiR-502-3p was found to be localized and overexpressed in the AD synapses. Overexpression of miR-502-3p was correlated with AD severity in terms of Braak stages. Studies have shown that miR-502-3p modulates the glutaminergic and GABAergic synapse function in AD. The current study’s emphasis is to discuss the in-depth roles of miR-502-3p in human diseases and AD and the future possibilities concerning miR-502-3p as a therapeutic for AD treatment.
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Affiliation(s)
- Davin Devara
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA
| | - Yashmit Choudhary
- Maxine L. Silva Health Magnet High School, 121 Val Verde St., El Paso, TX 79905, USA
| | - Subodh Kumar
- Center of Emphasis in Neuroscience, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA
- L. Frederick Francis Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA
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Zhang F, Wang Z, Sun B, Huang Y, Chen C, Hu J, Li L, Xia P, Ye Z. Propofol rescued astrocytes from LPS-induced inflammatory response via blocking LncRNA-MEG3/NF-κB axis. Curr Neurovasc Res 2022; 19:5-18. [PMID: 35297349 DOI: 10.2174/1567202619666220316112509] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Evidences had demonstrated that propofol attenuated neuro-inflammation following brain ischemia. Moreover, LncRNA-MEG3 was identified as an independent prognostic marker for ischemic stroke patients, and was found to be correlated with cerebral ischemia in animal models. Therefore, the current study explored the role of propofol on lipopolysaccharide (LPS)-mediated inflammation in cultured astrocytes, along with the molecular mechanism involved in LncRNA-MEG3/NF-κB axis. METHODS The primary cultured astrocytes isolated from rats were used to establish an inflammatory model, which were treated with LPS. Propofol was administrated to the primary cultured astrocytes during LPS treatment. The effect of propofol on pro-inflammatory cytokines and the LncRNA-MEG3/NF-κB pathway were detected by ELISA, qRT-PCR and Western Blot assay, respectively. Then, dual-luciferase assay, chromatin immunoprecipitation and RNA immunoprecipitation were used to determine the interaction between LncRNA-MEG3 and NF-κB. RESULTS Our study found that propofol significantly reduced LncRNA-MEG3 expression, which was elevated in LPS-stimulated astrocytes. Moreover, both propofol and LncRNA-MEG3 knockdown remarkably alleviated LPS-induced cytotoxicity by suppressing expressions and release of pro-inflammatory cytokines. Loss of LncRNA-MEG3 notably suppressed the NF-κB activity and its phosphorylated activation. Additionally, it was also observed that LncRNA-MEG3 could bind nuclear p65/p50, and promote the binding of NF-κB to IL-6 and TNF-α promoters in the nucleus, subsequently stimulating the production of inflammatory cytokines in LPS-treated astrocytes. Furthermore, a specific inhibitor of NF-κB, PDTC rescued astrocytes from LPS exposure without affecting LncRNA-MEG3 expression. CONCLUSION These findings demonstrated that LncRNA-MEG3 acted as a positive regulator of NF-κB, mediated the neuroprotection of propofol in LPS-triggered astrocytes injury.
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Affiliation(s)
- Fan Zhang
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Zhihua Wang
- Department of Anesthesiology, Hainan General Hospital, Haikou, Hainan Province, China
| | - Bei Sun
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Yan Huang
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Cheng Chen
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Jie Hu
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Longyan Li
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Pingping Xia
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Zhi Ye
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
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