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Differential expression of aqueous humor microRNAs in central retinal vein occlusion and its association with matrix metalloproteinases: a pilot study. Sci Rep 2022; 12:16429. [PMID: 36180575 PMCID: PMC9525721 DOI: 10.1038/s41598-022-20834-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
The aim of this study is to investigate the differential expression of microRNAs (miRNAs) in the aqueous humor (AH) of patients with central retinal vein occlusion (CRVO), and their association with AH matrix metalloproteinase (MMP) activity. Eighteen subjects, including 10 treatment naïve patients with CRVO and 8 control subjects, scheduled for intravitreal injection and cataract surgery, respectively, were included. AH samples were collected at the beginning of the procedure. A microarray composed of 84 miRNAs was performed to identify differentially expressed miRNAs in CRVO AH, which were further analyzed using bioinformatic tools to identify directly related cytokines/proteins. Eight miRNAs (hsa-mir-16-5p, hsa-mir-142-3p, hsa-mir-19a-3p, hsa-mir-144-3p, hsa-mir-195-5p, hsa-mir-17-5p, hsa-mir-93-5p, and hsa-mir-20a-5p) were significantly downregulated in the CRVO group. Bioinformatic analysis revealed a direct relationship among downregulated miRNAs, CRVO, and the following proteins: MMP-2, MMP-9, tumor necrosis factor, transforming growth factor beta-1, caspase-3, interleukin-6, interferon gamma, and interleukin-1-beta. Activities of MMP-2 and -9 in AH were detected using gelatin zymography, showing significant increase in the CRVO group compared to the control group (p < 0.01). This pilot study first revealed that MMP-2 and -9 were directly related to downregulated miRNAs and showed significant increase in activity in AH of patients with CRVO. Therefore, the relevant miRNAs and MMPs in AH could serve as potential biomarkers or therapeutic targets for CRVO.
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Wu J, Qin Y, Li Z, Li J, Li L, Tao S, Liu D. Comprehensive analysis of lncRNA and miRNA expression profiles and ceRNA network construction in negative pressure wound therapy. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1383. [PMID: 34733935 PMCID: PMC8506533 DOI: 10.21037/atm-21-3626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/16/2021] [Indexed: 12/29/2022]
Abstract
Background This study aims to explore the molecular mechanism of negative pressure wound therapy (NPWT) at the transcriptome level through whole transcriptome sequencing and biometric analysis. Methods A rat skin defect model was constructed and randomly divided into a NPWT group and a gauze group. The tissue in the center of the wound was used for whole transcriptome sequencing, and differentially expressed messenger RNAs (DEmRNAs), long noncoding RNAs (DElncRNAs), and microRNAs (DEmiRNAs) were identified between the two groups. Quantitative real time-polymerase chain reaction (qRT-PCR) analysis was used to verify the sequencing results. Functional enrichment analysis, pathway analysis, and protein-protein interaction (PPI) network analysis of DEmRNAs were conducted. Through bioinformatics analysis, a lncRNA-associated competing endogenous RNA (ceRNA) network was identified and constructed. Results We detected 896 DEmRNAs, 1,471 DElncRNAs, and 20 DEmiRNAs between the two groups. qRT-PCR verified the sequencing results. Functional analysis showed that DEmRNAs were mainly enriched in immune system processes and the Notch signaling pathway. Protein tyrosine phosphatase receptor type C (PTPRC) and signal transducer and activator of transcription 1 (STAT1) were the central hub nodes in the PPI analysis. The ceRNA network contained 11 mRNAs, 15 lncRNAs, and 4 miRNAs. Conclusions We identified several DEmRNAs, DElncRNAs, and DEmiRNAs between the NPWT treatment group and the control group. These findings may provide new insights into the pathophysiological mechanism of NPWT and wound healing.
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Affiliation(s)
- Jie Wu
- Department of Orthopedics, The Eighth Medical Center of PLA General Hospital, Beijing, China
| | - Yong Qin
- Department of Orthopedics, Second Affiliated Hospital of Harbin Medical University, Heilongjiang, China
| | - Zhirui Li
- Department of Orthopedics, Hainan Hospital of PLA General Hospital, Sanya, China.,Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Jiantao Li
- Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Litao Li
- Department of Orthopedics, The Eighth Medical Center of PLA General Hospital, Beijing, China.,Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Sheng Tao
- Department of Orthopedics, The Eighth Medical Center of PLA General Hospital, Beijing, China.,Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Daohong Liu
- Department of Orthopedics, The Eighth Medical Center of PLA General Hospital, Beijing, China.,Senior Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
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Glucose-induced microRNA-218 suppresses the proliferation and promotes the apoptosis of human retinal pigment epithelium cells by targeting RUNX2. Biosci Rep 2020; 39:221484. [PMID: 31830266 PMCID: PMC6928524 DOI: 10.1042/bsr20192580] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 11/20/2019] [Accepted: 12/12/2019] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE MicroRNA-218 (miR-218) critical for preventing the progression of numerous diseases, including diseases of the retinal pigment epithelium (RPE). However, the mechanism by which miR-218 regulates the PRE in humans remains largely unknown. Our study investigated the effects of glucose-induced miR-218 expression on human RPE cells (ARPE-19), as well as its targeted regulatory effect. METHODS The levels of miR-218 and runt-related transcription factor 2 (RUNX2) expression were investigated by RT-qPCR or Western blot assays. Cell viability and apoptosis were assessed by CCK-8 assays, flow cytometry, and Hoechst staining. A luciferase reporter assay was performed to determine whether Runx2 is a target gene of miR-218. RESULTS Our results showed that glucose up-regulated miR-218 expression, suppressed proliferation, and induced the apoptosis of ARPE-19 cells. We verified that miR-218 could inhibit the proliferation and facilitate the apoptosis of ARPE-19 cells, while inhibition of miR-218 expression produced the opposite effects. In terms of mechanism, we demonstrated that RUNX2 was a direct target of miR-218. Functional experiments showed that Runx2 served as a miR-218 target to help inhibit the proliferation and induction of apoptosis in ARPE-19 cells. CONCLUSION Our findings suggest the miR-218/Runx2 axis as a potential target for treating diabetic retinopathy (DR).
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Toro MD, Reibaldi M, Avitabile T, Bucolo C, Salomone S, Rejdak R, Nowomiejska K, Tripodi S, Posarelli C, Ragusa M, Barbagallo C. MicroRNAs in the Vitreous Humor of Patients with Retinal Detachment and a Different Grading of Proliferative Vitreoretinopathy: A Pilot Study. Transl Vis Sci Technol 2020; 9:23. [PMID: 32821520 PMCID: PMC7409223 DOI: 10.1167/tvst.9.6.23] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/14/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose Although the expression of microRNAs (miRNAs) in retinal pigment epithelial (RPE) cells undergoing epithelial-mesenchymal transition (EMT) is involved in the pathogenesis of proliferative vitreoretinopathy (PVR), its expression in the vitreous of patients with primary retinal detachment (RD) and different PVR grading has not yet been investigated. We assessed the expression of miRNAs in the vitreous humor (VH) of patients diagnosed with RD and different grading of PVR. Methods The VH was extracted from the core of the vitreous chamber in patients who had undergone standard vitrectomy for primary RD. RNA was extracted and TaqMan Low-Density Arrays (TLDAs) were used for miRNA profiling that was performed by single TaqMan assays. A gene ontology (GO) analysis was performed on the differentially expressed miRNAs. Results A total of 15 eyes with RD, 3 eyes for each grade of PVR (A, B, C, and D) and 3 from unaffected individuals, were enrolled in this prospective comparative study. Twenty miRNAs were altered in the comparison among pathological groups. Interestingly, the expression of miR-143-3p, miR-224-5p, miR-361-5p, miR-452-5p, miR-486-3p, and miR-891a-5p increased with the worsening of PVR grading. We also identified 34 miRNAs showing differential expression in PVR compared to control vitreous samples. GO analysis showed that the deregulated miRNAs participate in processes previously associated with PVR pathogenesis. Conclusions The present pilot study suggested that dysregulated vitreal miRNAs may be considered as a biomarker of PVR and associated with the PVR-related complications in patients with RD. Translational Relevance The correlation between vitreal miRNAs and the pathological phenotypes are essential to identify the novel miRNA-based mechanisms underlying the PVR disease that would improve the diagnosis and treatment of the condition.
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Affiliation(s)
- Mario Damiano Toro
- Department of General Ophthalmology, Medical University of Lublin, Lublin, Poland
- Eye Clinic, University of Catania, Catania, Italy
| | | | | | - Claudio Bucolo
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Salvatore Salomone
- Section of Pharmacology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Robert Rejdak
- Department of General Ophthalmology, Medical University of Lublin, Lublin, Poland
- Department of Experimental Pharmacology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
| | | | - Sarah Tripodi
- Department of Ophthalmology, Hospital C. Cantù, Abbiategrasso, Italy
| | - Chiara Posarelli
- Department of Surgical, Medical, Molecular Pathology, and of Critical Area, University of Pisa, Pisa, Italy
| | - Marco Ragusa
- Section of Biology and Genetics, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
- Oasi Research Institute-IRCSS, Troina, Italy
| | - Cristina Barbagallo
- Section of Biology and Genetics, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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Zhang LS, Zhou YD, Peng YQ, Zeng HL, Yoshida S, Zhao TT. Identification of altered microRNAs in retinas of mice with oxygen-induced retinopathy. Int J Ophthalmol 2019; 12:739-745. [PMID: 31131231 DOI: 10.18240/ijo.2019.05.07] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 02/25/2019] [Indexed: 02/06/2023] Open
Abstract
AIM To identify disease-related miRNAs in retinas of mice with oxygen-induced retinopathy (OIR), and to explore their potential roles in retinal pathological neovascularization. METHODS The retinal miRNA expression profile in mice with OIR and room air controls at postnatal day 17 (P17) were determined through miRNA microarray analysis. Several miRNAs were significantly up- and down-regulated in retinas of mice with OIR compared to controls by quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR). Two databases including Targetscan7.1 and MirdbV5 were used to predict target genes that associated with those significantly altered miRNAs in retinas of mice with OIR. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were also conducted to identify possible biological functions of the target genes. RESULTS In comparison with room air controls, 3 and 8 miRNAs were significantly up- and down-regulated, respectively, in retinas of mice with OIR. The qRT-PCR data confirmed that mmu-miR-350-3p and mmu-miR-202-3p were significantly up-regulated, while mmu-miR-711 and mmu-miR-30c-1-3p were significantly down-regulated in mice with OIR compared to controls. GO analysis demonstrated that the identified target genes were related to functions such as cellular macromolecule metabolic process. KEGG pathway analysis showed a group of pathways, such as Wnt signaling pathway, transcriptional misregulation in cancer, Mucin type O-glycan biosynthesis, and mitogen-activated protein kinase (MAPK) signaling pathway might be involved in pathological process of retinal neovascularization. CONCLUSION Our findings suggest that the differentially expressed miRNAs in retinas of mice with OIR might provide potential therapeutic targets for treating retinal neovascularization.
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Affiliation(s)
- Lu-Si Zhang
- Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan Province, China
| | - Ye-Di Zhou
- Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan Province, China
| | - Ying-Qian Peng
- Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan Province, China
| | - Hui-Lan Zeng
- Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan Province, China
| | - Shigeo Yoshida
- Department of Ophthalmology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Tan-Tai Zhao
- Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha 410011, Hunan Province, China
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Tang Y, Zhou X. Antagonistic effects of exogenous Slit2 on VEGF-induced choroidal endothelial cell migration and tube formation. Exp Ther Med 2019; 17:2443-2450. [PMID: 30906431 PMCID: PMC6425150 DOI: 10.3892/etm.2019.7235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 10/26/2018] [Indexed: 02/06/2023] Open
Abstract
Vascular endothelial growth factor (VEGF) is involved in the pathogenesis of choroidal neovascularization. The aim of the present study was to assess the effects of exogenous slit guidance ligand 2 (Slit2) on VEGF-induced choroidal endothelial cell (CEC) migration and tube formation. The protein and mRNA expression levels of Slit2, roundabout guidance receptor (Robo) 1 and Robo4 in CECs were evaluated by immunocytochemistry and reverse transcription-polymerase chain reaction analyses, respectively. Western blot analysis was used to assess Robo4 protein levels in CECs exposed to increasing concentrations (0, 50, 75, 100, 125 and 150 ng/ml) of exogenous Slit2. The effects of exogenous Slit2 (125 ng/ml) on VEGF-induced CEC migration and tube formation were also examined. CECs expressed Slit2 and Robo4, but lacked Robo1 expression, at the mRNA and protein levels. Robo4 protein expression increased significantly following treatment with 50–150 ng/ml exogenous Slit2. No significant difference in Robo4 protein expression was observed in CECs treated with 125 and 150 ng/ml Slit2. VEGF-induced CEC migration and tube formation were significantly reduced following treatment with 125 ng/ml exogenous Slit2. In conclusion, these results indicate that Robo4 is expressed in CECs. In addition, exogenous Slit2 may regulate Robo4 expression and partially inhibit VEGF-induced CEC migration and tube formation.
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Affiliation(s)
- Yanling Tang
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Xiyuan Zhou
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
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Zhang W, Chen L, Geng J, Liu L, Xu L. β‑elemene inhibits oxygen‑induced retinal neovascularization via promoting miR‑27a and reducing VEGF expression. Mol Med Rep 2019; 19:2307-2316. [PMID: 30664207 PMCID: PMC6392088 DOI: 10.3892/mmr.2019.9863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 12/14/2018] [Indexed: 12/13/2022] Open
Abstract
The present study aimed to investigate the significant role of β-elemene in mouse models of oxygen-induced retinopathy (OIR). C57BL/6J neonatal mice were used to establish OIR models. They were divided into four groups: Normoxia, OIR, OIR control and OIR‑treated. Mice in the OIR group were exposed to 75±5% oxygen for 5 days and returned to a normal oxygen environment on postnatal day 12 (P12). The OIR treated group was intravitreally injected with 1 µl β‑elemene on P12 and subsequently returned to a normal oxygen environment for 5 days (P12‑P17). Retinas were obtained on P17. Retinal neovascularization (RNV) was detected using adenosine diphosphatase staining and analyzed by counting the nuclei of neovascular endothelial cells. Vascular endothelial growth factor (VEGF) expression was determined by reverse transcription‑quantitative polymerase chain reaction, immunohistochemistry and western blot analysis. MicroRNA (miRNA/miR) microarrays were used to screen out differentially expressed miRNAs between the OIR and β‑elemene‑treated groups. Binding the 3'‑untranslated region (UTR) of VEGF and miR‑27a was confirmed using luciferase assays. It was found that high oxygen concentrations accelerated RNV and increased the number of preretinal neovascular cells; β‑elemene treatment reduced these effects. VEGF mRNA and protein expression was higher in the OIR and OIR control groups, compared with the normoxia and OIR‑treated groups. Further, it was shown that miR‑22, miR‑181a‑1, miR‑335‑5p, miR‑669n, miR‑190b, miR‑27a and miR‑93 were upregulated in the OIR‑treated group, and downregulated in the OIR group. The prediction websites TargetScan and miRanda revealed that VEGF contained a potential miR‑27a binding site in its 3'‑untranslated region (UTR). Luciferase assays demonstrated that miR‑27a directly bound to the 3'‑UTR of VEGF. In vitro experiments demonstrated that miR‑27a inhibited VEGF expression. In addition, β‑elemene treatment upregulate miR‑27a expression in vivo and in vitro. When miR‑27a expression was depleted by miR‑27a inhibitor, the protective effect of β‑elemene on RNV was eliminated. The present study demonstrated that β‑elemene reduced RNV in mouse OIR models via miR‑27a upregulation, leading to reduced VEGF expression. This finding may contribute to the development of novel therapeutic strategies for human retinopathy.
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Affiliation(s)
- Weilai Zhang
- Department of Ophthalmology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Lei Chen
- Department of Ophthalmology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jin Geng
- Department of Ophthalmology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Limin Liu
- Department of Ophthalmology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Li Xu
- Department of Ophthalmology, The Fourth People's Hospital of Shenyang, Shenyang, Liaoning 110031, P.R. China
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Han S, Chen Y, Gao Y, Sun B, Kong Y. MicroRNA-218–5p inhibit the migration and proliferation of pterygium epithelial cells by targeting EGFR via PI3K/Akt/mTOR signaling pathway. Exp Eye Res 2019; 178:37-45. [DOI: 10.1016/j.exer.2018.09.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 09/10/2018] [Accepted: 09/18/2018] [Indexed: 12/16/2022]
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Satari M, Aghadavod E, Mirhosseini N, Asemi Z. The effects of microRNAs in activating neovascularization pathways in diabetic retinopathy. J Cell Biochem 2018; 120:9514-9521. [PMID: 30556195 DOI: 10.1002/jcb.28227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 11/15/2018] [Indexed: 12/15/2022]
Abstract
Diabetic retinopathy (DR) is one of the major complications of diabetes mellitus that causes diabetic macular edema and visual loss. DR is categorized, based on the presence of vascular lesions and neovascularization, into non-proliferative and proliferative DR. Vascular changes in DR correlate with the cellular damage and pathological changes in the capillaries of blood-retinal barrier. Several cytokines have been involved in inducing neovascularization. These cytokines activate different signaling pathways which are mainly responsible for the complications of DR. Recently; microRNAs (miRNAs) have been introduced as the key factors in the regulation of the cytokine expression which plays a critical role in neovascularization of retinal cells. Some studies have demonstrated that changing levels of miRNAs have essential role in the pathophysiology of vascular changes in patients with DR. The aim of this study is to identify the effects of miRNAs in the pathogenesis of DR via activating neovascularization pathways.
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Affiliation(s)
- Mahbobeh Satari
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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Beamish IV, Hinck L, Kennedy TE. Making Connections: Guidance Cues and Receptors at Nonneural Cell-Cell Junctions. Cold Spring Harb Perspect Biol 2018; 10:a029165. [PMID: 28847900 PMCID: PMC6211390 DOI: 10.1101/cshperspect.a029165] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The field of axon guidance was revolutionized over the past three decades by the identification of highly conserved families of guidance cues and receptors. These proteins are essential for normal neural development and function, directing cell and axon migration, neuron-glial interactions, and synapse formation and plasticity. Many of these genes are also expressed outside the nervous system in which they influence cell migration, adhesion and proliferation. Because the nervous system develops from neural epithelium, it is perhaps not surprising that these guidance cues have significant nonneural roles in governing the specialized junctional connections between cells in polarized epithelia. The following review addresses roles for ephrins, semaphorins, netrins, slits and their receptors in regulating adherens, tight, and gap junctions in nonneural epithelia and endothelia.
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Affiliation(s)
- Ian V Beamish
- Department of Neurology & Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Lindsay Hinck
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, California 95064
| | - Timothy E Kennedy
- Department of Neurology & Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
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Jin F, Xing J. Circulating miR-126 and miR-130a levels correlate with lower disease risk, disease severity, and reduced inflammatory cytokine levels in acute ischemic stroke patients. Neurol Sci 2018; 39:1757-1765. [PMID: 30030634 DOI: 10.1007/s10072-018-3499-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 07/11/2018] [Indexed: 12/24/2022]
Abstract
To investigate the correlations of five angiogenesis-related miRNA (miR-126, miR-130a, miR-222, miR-218, and miR-185) expression levels with risk, severity, and inflammatory cytokines levels in acute ischemic stroke (AIS) patients. A total of 148 AIS patients and 148 age- and gender-matched controls were consecutively enrolled. Blood samples were collected from AIS patients and controls, and plasma was separated for miRNAs and cytokine level detection. Plasma levels of miRNAs were evaluated by real-time qPCR method, and inflammatory cytokine levels were detected using an enzyme-linked immunosorbent assay (ELISA). Plasma miR-126 and miR-130a expression levels in AIS patients were lower than those of controls, while the levels of miR-222, miR-218, and miR-185 were elevated in AIS patients compared with controls. After pooling the five miRNA expression levels together, the area under the curve (AUC) for predicting AIS risk was 0.840 (95% CI 0.795-0.885) with a sensitivity of 83.8% and a specificity of 69.6% at the best cut-off point. Plasma miR-126 (r = - 0.402, P < 0.001) and miR-130a (r = - 0.161, P = 0.050) levels were negatively correlated with NIHSS scores, while plasma miR-218 level was positively correlated with NIHSS scores (r = 0.471, P < 0.001). Most importantly, plasma miR-126 expression was negatively correlated with TNF-α (r = - 0.168, P = 0.041), IL-1β (r = - 0.246, P = 0.003), and IL-6 (r = - 0.147, P = 0.035) levels, while miR-130a expression was negatively correlated with TNF-α (r = - 0.287, P < 0.001), IL-1β (r = - 0.168, P = 0.041), and IL-6 (r = - 0.239, P = 0.003) expression levels and positively associated with IL-10 level (r = 0.261, P = 0.001). Circulating miR-126 and miR-130a levels correlate with lower disease risk, decreased disease severity, and reduced inflammatory cytokine levels in AIS patients.
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Affiliation(s)
- Fuqiang Jin
- Department of Emergency, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061018, China.
| | - Jie Xing
- Cangzhou Medical College, Cangzhou, China
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Pan L, Lian W, Zhang X, Han S, Cao C, Li X, Li M. Human circular RNA‑0054633 regulates high glucose‑induced vascular endothelial cell dysfunction through the microRNA‑218/roundabout 1 and microRNA‑218/heme oxygenase‑1 axes. Int J Mol Med 2018; 42:597-606. [PMID: 29693114 DOI: 10.3892/ijmm.2018.3625] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 03/27/2018] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the relative regulation of human circular RNA‑0054633 (hsa_circ_0054633), microRNA‑218 (miR‑218), roundabout 1 (ROBO1) and heme oxygenase‑1 (HO‑1) in human umbilical vein endothelial cells (HUVECs) in high glucose conditions. Initially, the expression of hsa_circ_0054633 in HUVECs was detected in high glucose conditions by reverse transcription‑quantitative polymerase chain reaction. Next, a small interfering RNA against hsa_circ_0054633 was constructed to investigate the function of jsa_circ_0054633 in HUVECs by transwell migration, cell counting kit‑8, flow cytometry and tube formation assays. In addition, the effect of hsa_circ_0054633 on the expression levels of ROBO1, HO‑1 and vascular endothelial growth factor were examined. The regulation effects of hsa_circ_0054633 on high glucose‑induced HUVEC proliferation, migration, and angiopoiesis were also analyzed. Bioinformatics analysis and dual‑luciferase assay were then used to confirm the direct or specific regulation of hsa_circ_0054633, miR‑218, ROBO1 and HO‑1. It was observed that high glucose levels increased the expression of hsa_circ_0054633, while downregulation of hsa_circRNA‑0054633 increased the high glucose‑induced endothelial cell dysfunction, including proliferation, migration and angiopoiesis suppression. Bioinformatics analysis revealed that the expression of circRNA‑0054633 was able to inhibit miR‑218 expression, which was clarified by the dual‑luciferase assay. It was also demonstrated that downregulating the expression of miR‑218 inhibited the high glucose‑induced endothelial cell dysfunction by promoting the expression of ROBO1 and HO‑1. These results suggest that the expression of hsa_circRNA‑0054633 has a protective effect against high glucose‑induced endothelial cell dysfunction by targeting ROBO1 and HO‑1.
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Affiliation(s)
- Long Pan
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
| | - Weishuai Lian
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
| | - Xiaojun Zhang
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
| | - Shilong Han
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
| | - Chuanwu Cao
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
| | - Xue Li
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
| | - Maoquan Li
- Department of Interventional and Vascular Surgery, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
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Circulating pro-angiogenic and anti-angiogenic microRNA expressions in patients with acute ischemic stroke and their association with disease severity. Neurol Sci 2017; 38:2015-2023. [PMID: 28875333 DOI: 10.1007/s10072-017-3071-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 07/12/2017] [Indexed: 10/18/2022]
Abstract
The main objectives of this study are to evaluate 28 selected pro-angiogenic and anti-angiogenic microRNA (miRNA) expressions in plasma of acute ischemic stroke (AIS) patients and controls and to assess the correlations of these miRNAs with risk and severity of AIS. In the exploring stage, 10 AIS patients and 10 controls with vascular risk factors were enrolled. And in the validating stage, 106 AIS patients and 110 controls with the same eligibility were recruited. Blood samples were collected from participants within 24 h post the onset of symptoms, and plasma levels of miRNAs were evaluated by the qPCR method. In the exploring stage, 11 differentially expressed miRNAs (DEM) were identified and included into the validating stage. In the validating stage, the expression of miR-126, miR-130a, and miR-378 in plasma declined in the AIS patients; however, miR-222, miR-218, and miR-185 plasma levels were elevated. Univariate and multivariate logistic regression analysis disclosed that miR-126, miR-130a, miR-222, miR-218, and miR-185 were independent predicting factors for AIS. When these five DEMs were combined together, they presented a good diagnostic value with an area under curve (AUC) value of 0.767 (95% CI 0.705-0.829), sensitivity of 87.7%, and specificity of 54.5% at best cutoff point. Additionally, miR-126, miR-378, miR-101, miR-222, miR-218, and miR-206 were associated with National Institutes of Health Stroke Scale (NIHSS) score. Circulating miR-126, miR-130a, miR-222, miR-218, and miR-185 could be served as promising and independent biomarkers for risk of AIS, and miR-126, miR-378, miR-222, miR-101, miR-218, and miR-206 could be used for disease severity management of AIS.
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14
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Zhang L, Tao L. miR-132 promotes retinal neovascularization under anoxia and reoxygenation conditions through up-regulating Egr1, ERK2, MMP2, VEGFA and VEGFC expression. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:8845-8857. [PMID: 31966751 PMCID: PMC6965475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 06/30/2017] [Indexed: 06/10/2023]
Abstract
Retinal neovascularization (RNV) is a prominent pathological angiogenesis, which causes detrimental outcomes in visual functions. Previous literature represents that miR-132 induces angiogenesis in tumor development and ischemic diseases. Considering the important role in angiogenesis, we hypothesized that miR-132 might be involved in RNV. In this study, human retinal microvascular endothelial cells were maintained in hypoxia for indicated time, followed by further incubation in normoxic conditions to establish hypoxia/reoxygenation (H/R) models in vitro. mRNA microarray analysis was undertaken to detect alterations in gene profiles in the cells. qRT-PCR and Western blotting were performed to evaluate expression of genes that are closely associated to neovascularization. Results showed that miR-132 expression was increased under hypoxic conditions. Reoxygenation for a limited time (6 h) failed to restore miR-132 expression to basal level. Interference of miR-132 expression via its inhibitor suppressed the cell proliferation under H/R conditions, increasing the apoptosis rate. mRNA microarray analysis revealed that miR-132 is involved in the regulation of vasculature development, blood vessel morphogenesis, and proliferation and migration of microvascular endothelial cells through regulating genes such as early growth response gene 1 (Egr1), extracellular signal-regulated kinase (ERK), metal matrix proteinase (MMP2), vascular endothelial growth factor (VEGF)-A and VEGF-C. qRT-PCR and Western blotting further demonstrated that miR-132 up-regulated their gene and protein expression under H/R conditions. In summary, miR-132 was involved in the development of RNV under H/R conditions, at least partly, through up-regulating Egr1, ERK2, MMP2, VEGFA and VEGFC expression. This finding facilitates the understanding of pathogenic mechanisms of RNV.
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Affiliation(s)
- Lixin Zhang
- Department of Ophthalmology, Hunan Children's Hospital Changsha 410008, Hunan, P. R. China
| | - Lijuan Tao
- Department of Ophthalmology, Hunan Children's Hospital Changsha 410008, Hunan, P. R. China
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15
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Tasharrofi N, Kouhkan F, Soleimani M, Soheili ZS, Kabiri M, Mahmoudi Saber M, Dorkoosh FA. Survival Improvement in Human Retinal Pigment Epithelial Cells via Fas Receptor Targeting by miR-374a. J Cell Biochem 2017; 118:4854-4861. [PMID: 28543858 DOI: 10.1002/jcb.26160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 05/22/2017] [Indexed: 01/09/2023]
Abstract
Oxidative conditions of the eye could contribute to retinal cells loss through activating the Fas-L/Fas pathway. This phenomenon is one of the leading causes of some ocular diseases like age-related macular degeneration (AMD). By targeting proteins at their mRNA level, microRNAs (miRNAs) can regulate gene expression and cell function. The aim of the present study is to investigate Fas targeting by miR-374a and find whether it can inhibit Fas-mediated apoptosis in primary human retinal pigment epithelial (RPE) cells under oxidative stress. So, the primary human RPE cells were transfected with pre-miR-374a pLEX construct using polymeric carrier and were exposed to H2 O2 (200 μM) as an oxidant agent for induction of Fas expression. Fas expression at mRNA and protein level was evaluated by quantitative real-time PCR and Western blot analysis, respectively. These results revealed that miR-374a could prevent Fas upregulation under oxidative conditions. Moreover, Luciferase activity assay confirmed that Fas could be a direct target of miR-374a. The cell viability studies demonstrated that caspase-3 activity was negligible in miR-374a treated cells compared to the controls. Our data suggest miR-374a is a negative regulator of Fas death receptor which is able to enhance the cell survival and protect RPE cells against oxidative conditions. J. Cell. Biochem. 118: 4854-4861, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Nooshin Tasharrofi
- Faculty of Pharmacy, Department of Pharmaceutical Nanotechnology, Tehran University of Medical Sciences, Tehran, Iran
- Faculty of Pharmacy, Department of Pharmaceutics, Tehran University of Medical Science, Tehran, Iran
- Stem Cell Technology Research Center, Tehran, Iran
| | | | - Masoud Soleimani
- Faculty of Medical Science, Department of Hematology, Tarbiat Modares University, Tehran, Iran
| | - Zahra-Sheila Soheili
- Faculty of Molecular Medicine, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Mahboubeh Kabiri
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Mohaddeseh Mahmoudi Saber
- Faculty of Pharmacy, Department of Pharmaceutical Nanotechnology, Tehran University of Medical Sciences, Tehran, Iran
- Faculty of Pharmacy, Department of Pharmaceutics, Tehran University of Medical Science, Tehran, Iran
- Faculty of Pharmacy, Nanotechnology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farid Abedin Dorkoosh
- Faculty of Pharmacy, Department of Pharmaceutics, Tehran University of Medical Science, Tehran, Iran
- Faculty of Pharmacy, Medical Biomaterial Research Center (MBRC), Tehran University of Medical Science, No. 1462, Kargar Ave, Tehran, Iran
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16
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Zhang X, Dong J, He Y, Zhao M, Liu Z, Wang N, Jiang M, Zhang Z, Liu G, Liu H, Nie Y, Fan D, Tie J. miR-218 inhibited tumor angiogenesis by targeting ROBO1 in gastric cancer. Gene 2017; 615:42-49. [PMID: 28323002 DOI: 10.1016/j.gene.2017.03.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/22/2017] [Accepted: 03/16/2017] [Indexed: 12/20/2022]
Abstract
Aberrant expression of miRNAs is involved in several carcinogenic processes, including tumor growth, metastasis and angiogenesis. The aim of this study was to determine the role of miR-218 in gastric cancer angiogenesis. In situ hybridization was performed on a set of tissue microarray samples to assess the difference in miR-218 expression in vessels between tumor tissues and normal gastric mucosa. In vitro, ectopic expression of miR-218 disturbed the tubular structure and inhibited the migration of endothelial cells. Motility and tube formation were rescued when miR-218 was downregulated. Moreover, miR-218 suppressed endothelial cell sprouting in a fibrin bead sprouting assay. Subsequently, we identified ROBO1 as a target of miR-218 in endothelial cells and determined it was responsible for the effect of miR-218 on tumor angiogenesis. In vivo, local injection of mature miR-218 in xenografted tumors disrupted the vessel plexus and thus inhibited tumor growth. Taken together, our study demonstrated an anti-angiogenic role of miR-218 in gastric cancer and indicated that delivery of miR-218 may be a potential therapeutic strategy to inhibit tumor angiogenesis.
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Affiliation(s)
- Xiangyuan Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jiaqiang Dong
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Yan He
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Ming Zhao
- Yan'an University, Yan'an 716000, China
| | - Zhen Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Na Wang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Mingzuo Jiang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Zhe Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Gang Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Haiming Liu
- College of Computer Science and Technology, Jilin University, Changchun 120012, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Daiming Fan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
| | - Jun Tie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
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Berber P, Grassmann F, Kiel C, Weber BHF. An Eye on Age-Related Macular Degeneration: The Role of MicroRNAs in Disease Pathology. Mol Diagn Ther 2017; 21:31-43. [PMID: 27658786 PMCID: PMC5250647 DOI: 10.1007/s40291-016-0234-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Age-related macular degeneration (AMD) is the primary cause of blindness in developed countries, and is the third leading cause worldwide. Emerging evidence suggests that beside environmental and genetic factors, epigenetic mechanisms, such as microRNA (miRNA) regulation of gene expression, are relevant to AMD providing an exciting new avenue for research and therapy. MiRNAs are short, non-coding RNAs thought to be imperative for coping with cellular stress. Numerous studies have analyzed miRNA dysregulation in AMD patients, although with varying outcomes. Four studies which profiled dysregulated circulating miRNAs in AMD yielded unique sets, and there is only minimal overlap in ocular miRNA profiling of AMD. Mouse models of AMD, including oxygen-induced retinopathy and laser-induced choroidal neovascularization, showed similarities to some extent with miRNA patterns in AMD. For example, miR-146a is an extensively researched miRNA thought to modulate inflammation, and was found to be upregulated in AMD mice and cellular systems, but also in human AMD retinae and vitreous humor. Similarly, mir-17, miR-125b and miR-155 were dysregulated in multiple AMD mouse models as well as in human AMD plasma or retinae. These miRNAs are thought to regulate angiogenesis, apoptosis, phagocytosis, and inflammation. A promising avenue of research is the modulation of such miRNAs, as the phenotype of AMD mice could be ameliorated with antagomirs or miRNA-mimic treatment. However, before meaningful strides can be made to develop miRNAs as a diagnostic or therapeutic tool, reproducible miRNA profiles need to be established for the various clinical outcomes of AMD.
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Affiliation(s)
- Patricia Berber
- Institute of Human Genetics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Felix Grassmann
- Institute of Human Genetics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Christina Kiel
- Institute of Human Genetics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Bernhard H F Weber
- Institute of Human Genetics, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
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18
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Expression of Concern. Chin Med J (Engl) 2016; 129:2772. [PMID: 27824019 PMCID: PMC5126178 DOI: 10.4103/0366-6999.193449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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