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Gao P, Wang J, Jiang M, Li Z, Xu D, Jing J, Yihepaer, Hu T. LncRNA SNHG16 is Downregulated in Pneumonia and Downregulates miR-210 to Promote LPS-Induced Lung Cell Apoptosis. Mol Biotechnol 2023; 65:446-452. [PMID: 35994228 DOI: 10.1007/s12033-022-00545-6] [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: 01/28/2022] [Accepted: 07/05/2022] [Indexed: 11/29/2022]
Abstract
Long non-coding RNA Small Nucleolar RNA Host Gene 16 (SNHG16) has been reported to participate in Lipopolysaccharide (LPS)-induced inflammatory pathway, which contributes to pneumonia. This study was therefore conducted to explore the role of SNHG16 in pneumonia. In this study, expression of SNHG16 and microRNA (miR)-210 in pneumonia plasma samples (n = 56) and control samples (n = 60) was detected by RT-qPCR. The potential crosstalk between SNHG16 and miR-210 was analyzed by performing overexpression experiments. MSP was performed to study the role of SNHG16 in methylation of miR-210 gene. Cell apoptosis was analyzed by cell apoptosis assay. Decreased expression levels of SNHG16 and increased expression levels of miR-210 were observed in pneumonia. SNHG16 showed an inverse correlation to miR-210. LPS treatment led to downregulated SNHG16 and upregulated miR-210 in Human Bronchial Epithelial Cells (HBEpCs). In HBEpCs, SNHG16 downregulated miR-210 and increased miR-210 DNA gene methylation. Moreover, SNHG16 suppressed the role of miR-210 in cell apoptosis under LPS treatment. In conclusion, SNHG16 is downregulated in pneumonia, and it downregulates miR-210 possibly through methylation to promote lung cell apoptosis induced by LPS.
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Affiliation(s)
- Panjun Gao
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Jing Wang
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China.
| | - Ming Jiang
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Zheng Li
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Dan Xu
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Jing Jing
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Yihepaer
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Tingting Hu
- Xinjiang Laboratory of Respiratory Disease Research, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830011, Xinjiang, People's Republic of China
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Yang CC, Wei XP, Fu XM, Qian LT, Xie LJ, Liu HB, Li G, Li XG, Zeng XW. Down-regulating microRNA-20a regulates CDH1 to protect against cerebral ischemia/reperfusion injury in rats. Cell Cycle 2020; 20:54-64. [PMID: 33345691 DOI: 10.1080/15384101.2020.1856498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Studies have extensively focused on the involvement of microRNAs (miRNAs) in cerebral ischemia/reperfusion (I/R) injury but not much on the specific role of miR-20a. Hence, this study is purposed to decipher whether miR-20a could regulate cadherin 1 (CDH1) to affect cerebral I/R injury in rats. Rat transient middle cerebral artery occlusion model (MCAO) was established. Rats were injected with lentiviral solution containing miR-20a inhibitor, or overexpressed CDH1 or combined depleted miR-20a and CDH1 to explore their roles in cerebral I/R injury. Oxidative stress-related factors, miR-20a, CDH1, nuclear factor-kappaB (NF-κB) and Nestin expression in brain tissues were detected by RT-qPCR and western blot assay. The target relation between miR-20a and CDH1 was predicted by online website and further confirmed by luciferase activity assay. In rats with cerebral I/R injury, increased miR-20a and decreased CDH1 were found in brain tissues. Reduction of miR-20a or elevation of CDH1 attenuated behavior function in MCAO rats. Inhibiting miR-20a or restoring CDH1 restrained oxidative stress, attenuated pathological damage of neurons, promoted neuron survival, and down-regulated NF-κB and Nestin expression in brain tissues of MCAO rats. CDH1 was determined to a target gene of miR-20a. This study elucidates that down-regulating miR-20a elevates CDH1 to protect neurons from cerebral I/R injury, which paves a new way for treatment of cerebral I/R injury.
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Affiliation(s)
- Chun-Chun Yang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China.,School of Medicine, Shandong University , Jinan, Shandong, China.,Department of Neurosurgery, Fuyang People's Hospital , Fuyang, Anhui, China
| | - Xiang-Pin Wei
- Department of Neurosurgery, AnHui Provincial Hospital, Shandong University , Anhui, China
| | - Xian-Ming Fu
- Department of Neurosurgery, AnHui Provincial Hospital, Shandong University , Anhui, China
| | - Ling-Tao Qian
- Department of Neurosurgery, Fuyang People's Hospital , Fuyang, China
| | - Lan-Jun Xie
- Department of Neurosurgery, Fuyang People's Hospital , Fuyang, China
| | - Hong-Bo Liu
- Department of Stroke Center, Fuyang People's Hospital , Fuyang, China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
| | - Xin-Gang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
| | - Xian-Wei Zeng
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University , Jinan, Shandong, China
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circ_2858 Helps Blood-Brain Barrier Disruption by Increasing VEGFA via Sponging miR-93-5p during Escherichia coli Meningitis. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:708-721. [PMID: 33230468 PMCID: PMC7593508 DOI: 10.1016/j.omtn.2020.09.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 09/30/2020] [Indexed: 02/06/2023]
Abstract
Meningitic Escherichia coli invasion of the host brain can lead to increased blood-brain barrier (BBB) permeability. Circular RNAs (circRNAs) are non-coding RNAs, highly abundant in the brain, that are widely involved in the pathological processes of central nervous system (CNS) disorders; however, whether circRNAs participate in the regulation of BBB permeability during E. coli meningitis remains unknown. Here, we identified a novel circRNA, circ_2858, that was significantly upregulated in human brain microvascular endothelial cells (hBMECs) upon meningitic E. coli infection. We also found that circ_2858 regulated BBB permeability in hBMECs by competitively binding miR-93-5p, thereby inducing the upregulation of vascular endothelial growth factor A and finally resulting in downregulation as well as altered distribution of tight junction proteins such as ZO-1, Occludin, and Claudin-5. These findings provide novel insights into the influence of circ_2858 on BBB permeability during the pathogenic process of E. coli meningitis, suggesting potential nucleic acid targets for future prevention and therapy of CNS infection induced by meningitic E. coli.
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Chen C, Lin S, Zhou L, Wang J, Chen J, Yu R, Luo H, Lu J, Xue Z, Chen M. MicroRNA-127-5p attenuates severe pneumonia via tumor necrosis factor receptor-associated factor 1. Exp Ther Med 2020; 20:2856-2862. [PMID: 32765782 DOI: 10.3892/etm.2020.8997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 04/17/2020] [Indexed: 12/15/2022] Open
Abstract
Pneumonia is a persistent and pervasive disease, the effects of which can be severe. MicroRNA (miR)-127-5p has been utilized as a novel biomarker for the diagnosis of severe pneumonia. The present study aimed to investigate the function of miR-127-5p during severe pneumonia. An in vitro model of severe pneumonia in Ana-1 murine macrophages was established using lipopolysaccharide (LPS). Subsequently, reverse transcription-quantitative PCR and ELISA were performed to detect the mRNA and protein expression levels of interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α. Western blotting was also performed to measure the activity of AKT and NF-κB. The results indicated that compared with the control group, LPS treatment increased TNF receptor-associated factor 1 (TRAF1) expression levels and reduced miR-127-5p expression levels. Furthermore, the results revealed that the 3'-untranslated region of TRAF1 was targeted by miR-127-5p. miR-127-5p mimic reduced LPS-induced increases in IL-1β, IL-6 and TNF-α expression by targeting TRAF1, which was potentially mediated by inactivation of the AKT and NF-κB signaling pathways. Collectively, the results demonstrated that miR-127-5p may attenuate severe pneumonia by reducing LPS-induced inflammatory cytokine production, and inactivating the AKT and NF-κB signaling pathways by targeting TRAF1.
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Affiliation(s)
- Cunrong Chen
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Sen Lin
- Department of Intensive Medicine, Jinjiang City Hospital, Jinjiang, Fujian 362200, P.R. China
| | - Lili Zhou
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Jingjing Wang
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Junnian Chen
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Ranjie Yu
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Haoteng Luo
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Junli Lu
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Zhiqiang Xue
- Department of Critical Care Medicine, Union Hospital of Fujian Medical University, Fuzhou, Fujian 350111, P.R. China
| | - Mingzhi Chen
- Department of Intensive Medicine, Jinjiang City Hospital, Jinjiang, Fujian 362200, P.R. China
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Hardeland R. Aging, Melatonin, and the Pro- and Anti-Inflammatory Networks. Int J Mol Sci 2019; 20:ijms20051223. [PMID: 30862067 PMCID: PMC6429360 DOI: 10.3390/ijms20051223] [Citation(s) in RCA: 181] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 12/17/2022] Open
Abstract
Aging and various age-related diseases are associated with reductions in melatonin secretion, proinflammatory changes in the immune system, a deteriorating circadian system, and reductions in sirtuin-1 (SIRT1) activity. In non-tumor cells, several effects of melatonin are abolished by inhibiting SIRT1, indicating mediation by SIRT1. Melatonin is, in addition to its circadian and antioxidant roles, an immune stimulatory agent. However, it can act as either a pro- or anti-inflammatory regulator in a context-dependent way. Melatonin can stimulate the release of proinflammatory cytokines and other mediators, but also, under different conditions, it can suppress inflammation-promoting processes such as NO release, activation of cyclooxygenase-2, inflammasome NLRP3, gasdermin D, toll-like receptor-4 and mTOR signaling, and cytokine release by SASP (senescence-associated secretory phenotype), and amyloid-β toxicity. It also activates processes in an anti-inflammatory network, in which SIRT1 activation, upregulation of Nrf2 and downregulation of NF-κB, and release of the anti-inflammatory cytokines IL-4 and IL-10 are involved. A perhaps crucial action may be the promotion of macrophage or microglia polarization in favor of the anti-inflammatory phenotype M2. In addition, many factors of the pro- and anti-inflammatory networks are subject to regulation by microRNAs that either target mRNAs of the respective factors or upregulate them by targeting mRNAs of their inhibitor proteins.
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Affiliation(s)
- Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, 37073 Göttingen, Germany.
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