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Wang X, Wang P. Effect of a protein kinase B (Akt) inhibitor on the angiogenesis of HUVECs and corneal neovascularization. Wien Klin Wochenschr 2024; 136:154-162. [PMID: 37261487 DOI: 10.1007/s00508-023-02208-1] [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: 03/14/2023] [Accepted: 04/11/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Corneal neovascularization (CNV) is a vision-threatening disease and an increasing public health concern. It was found that administering an Akt inhibitor in the second phase of retinopathy significantly decreased retinal neovascularization. METHODS This study investigated the effect of an Akt inhibitor on the angiogenesis of human umbilical vein endothelial cells (HUVECs) and its impacts on the degree of CNV and corneal opacity in a rat keratoplasty model. Cell Counting Kit-8 (CCK-8) and 5-ethynyl-2'-deoxyuridine (EdU) assays, tube formation assays, cell scratch experiments, and a fully allogeneic corneal transplant model were performed. RESULTS It was found that an Akt inhibitor inhibited the proliferation, angiogenesis, and migration of HUVECs induced by vascular endothelial growth factor (VEGF). The results showed that both CNV and corneal opacity were decreased in rats after Akt inhibitor administration. CONCLUSION The research illustrates the vital role of Akt inhibitors in mediating CNV. The analysis shows that the Akt inhibitor may provide a novel and feasible therapeutic approach to prevent CNV, but its mechanism needs further investigation.
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Affiliation(s)
- Xing Wang
- Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, The First Affiliated Hospital of Chongqing Medical University, No. 1, Youyi Road, Yuanjiagang, Yuzhong District, 400016, Chongqing, China
| | - Peng Wang
- Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, The First Affiliated Hospital of Chongqing Medical University, No. 1, Youyi Road, Yuanjiagang, Yuzhong District, 400016, Chongqing, China.
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2
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Zhang X, Wang G, Wang Q, Jiang R. Dexamethasone and MicroRNA-204 Inhibit Corneal Neovascularization. Mil Med 2024; 189:374-378. [PMID: 36043264 DOI: 10.1093/milmed/usac260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/14/2022] [Accepted: 08/18/2022] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION This was an in vivo animal study designed to investigate the interaction between dexamethasone (Dex) and microRNA-204 (miR-204) in a mouse alkali burn-induced corneal neovascularization (CNV) model. The function of miR-204 was then investigated in human mammary epithelial cells (HMECs) in vitro. MATERIALS AND METHODS The CNV model was induced by corneal alkali burn in BLAB/c mice. The mice were randomly divided into five groups: normal control (Ctrl), alkali burn-induced corneal injury (Alkali), alkali burn + Dex (Dex), alkali burn + negative control (NTC), and alkali burn + miR-204 agomir (miR-204). Subconjunctival injection of NTC, Dex, or miR-204 agomir was conducted at 0, 3, and 6 days, respectively, after alkali burn. The corneas were collected at day 7 after injury, and the CNV area was observed using immunofluorescence staining. The expression of miR-204 was analyzed with quantitative real time (qRT)-PCR. In HMECs, exogenous miR-204 agomir or antagomir was used to strengthen or inhibit the expression of miR-204. Migration assays and tube formation studies were conducted to evaluate the function of miR-204 on HMECs. RESULTS At 7 days post-alkali burn, CNV grew aggressively into the cornea. MicroRNA-204 expression was reduced in the Alkali group in contrast with the Ctrl group (P = .003). However, miR-204 was upregulated in the Dex group (vs. alkali group, P = .008). The CNV areas in the NTC and miR-204 groups were 59.30 ± 8.32% and 25.60 ± 2.30%, respectively (P = .002). In vitro, miR-204 agomir showed obvious inhibition on HMEC migration in contrast with NTC (P = .033) and miR-204 antagomir (P = .017). Compared with NTC, miR-204 agomir attenuated tube formation, while miR-204 antagomir accelerated HMEC tube formation (P < .05). CONCLUSION The role of Dex in attenuating CNV may be partly attributed to miR-204. MiR-204 may be a potential therapeutic target in alkali burn-induced CNV.
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Affiliation(s)
- Xiaoping Zhang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266002, China
| | - Gang Wang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266002, China
| | - Qing Wang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266002, China
| | - Rui Jiang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266002, China
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Fattahi M, Rezaee D, Fakhari F, Najafi S, Aghaei-Zarch SM, Beyranvand P, Rashidi MA, Bagheri-Mohammadi S, Zamani-Rarani F, Bakhtiari M, Bakhtiari A, Falahi S, Kenarkoohi A, Majidpoor J, Nguyen PU. microRNA-184 in the landscape of human malignancies: a review to roles and clinical significance. Cell Death Discov 2023; 9:423. [PMID: 38001121 PMCID: PMC10673883 DOI: 10.1038/s41420-023-01718-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/05/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of non-coding RNAs (ncRNAs) with a short length of 19-22 nucleotides. miRNAs are posttranscriptional regulators of gene expression involved in various biological processes like cell growth, apoptosis, and angiogenesis. miR-184 is a well-studied miRNA, for which most studies report its downregulation in cancer cells and tissues and experiments support its role as a tumor suppressor inhibiting malignant biological behaviors of cancer cells in vitro and in vivo. To exert its functions, miR-184 affects some signaling pathways involved in tumorigenesis like Wnt and β-catenin, and AKT/mTORC1 pathway, oncogenic factors (e.g., c-Myc) or apoptotic proteins, such as Bcl-2. Interestingly, clinical investigations have shown miR-184 with good performance as a prognostic/diagnostic biomarker for various cancers. Additionally, exogenous miR-184 in cell and xenograft animal studies suggest it as a therapeutic anticancer target. In this review, we outline the studies that evaluated the roles of miR-184 in tumorigenesis as well as its clinical significance.
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Affiliation(s)
- Mehdi Fattahi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
| | - Delsuz Rezaee
- School of Allied Medical Sciences, Ilam University of Medical Sciences, Ilam, Iran
| | - Fatemeh Fakhari
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Seyed Mohsen Aghaei-Zarch
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parisa Beyranvand
- Department of Molecular Genetics, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Mohammad Amin Rashidi
- Student Research Committee, Department of Occupational Health and Safety, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeid Bagheri-Mohammadi
- Department of Physiology and Neurophysiology Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fahimeh Zamani-Rarani
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Abbas Bakhtiari
- Anatomical Sciences Department, Medical Faculty, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Shahab Falahi
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Azra Kenarkoohi
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
- Department of Microbiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Jamal Majidpoor
- Department of Anatomy, Faculty of Medicine, Infectious Disease Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
| | - P U Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- School of Engineering & Technology, Duy Tan University, Da Nang, Vietnam
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Yang Y, Zhong J, Cui D, Jensen LD. Up-to-date molecular medicine strategies for management of ocular surface neovascularization. Adv Drug Deliv Rev 2023; 201:115084. [PMID: 37689278 DOI: 10.1016/j.addr.2023.115084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
Ocular surface neovascularization and its resulting pathological changes significantly alter corneal refraction and obstruct the light path to the retina, and hence is a major cause of vision loss. Various factors such as infection, irritation, trauma, dry eye, and ocular surface surgery trigger neovascularization via angiogenesis and lymphangiogenesis dependent on VEGF-related and alternative mechanisms. Recent advances in antiangiogenic drugs, nanotechnology, gene therapy, surgical equipment and techniques, animal models, and drug delivery strategies have provided a range of novel therapeutic options for the treatment of ocular surface neovascularization. In this review article, we comprehensively discuss the etiology and mechanisms of corneal neovascularization and other types of ocular surface neovascularization, as well as emerging animal models and drug delivery strategies that facilitate its management.
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Affiliation(s)
- Yunlong Yang
- Department of Cellular and Genetic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
| | - Junmu Zhong
- Department of Ophthalmology, Longyan First Hospital Affiliated to Fujian Medical University, Longyan 364000, Fujian Province, China
| | - Dongmei Cui
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen 518040, Guangdong Province, China
| | - Lasse D Jensen
- Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine, Unit of Cardiovascular Medicine, Linköping University, Linköping, Sweden.
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Liao J, Guo X, Fan X, Zhang X, Xu M. Upregulation of miR-184 and miR-19a-3p induces endothelial dysfunction by targeting AGO2 in Kawasaki disease. Cardiol Young 2023; 33:1962-1966. [PMID: 36424716 DOI: 10.1017/s1047951122003523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Endothelial dysfunction is a marked feature of Kawasaki disease during convalescence, but its pathogenesis is currently unclear. Circulating microRNAs (miRNAs) are associated with the progression of Kawasaki disease. However, the role and mechanism of circulating miRNAs in endothelial dysfunction are largely unknown. Kawasaki disease patients were found to have a unique circulating miRNA profile, including upregulation of miRNA-210-3p, miR-184 and miR-19a-3p, compared to non-Kawasaki disease febrile controls. This study aimed to investigate the effects of these three miRNAs on endothelial function. METHODS Overexpression of miRNAs in human umbilical vein endothelial cells was done by transfection of miRNA mimics. The tube formation assay was used to evaluate the function of human umbilical vein endothelial cells. The potential binding sites of miRNAs on 3'untranslated regions were predicted by using TargetScan database and validated by dual luciferase reporter assay. The protein expression of AGO2, PTEN and VEGF in human umbilical vein endothelial cells was detected by Western blot. Overexpression of AGO2 in human umbilical vein endothelial cells was done by transfection of AGO2 expression plasmids. RESULTS Overexpression of miRNA-184 and miRNA-19a-3p, but not miR-210-3p, impaired the function of human umbilical vein endothelial cells. Mechanistically, miR-184 and miR-19a-3p could target the 3'untranslated regions of AGO2 mRNA to downregulate its expression and subsequently impede the AGO2/PTEN/VEGF axis. To be noted, the rescue of the expression of AGO2 remarkably recovered the function that was impaired by overexpression of miRNA-184 and miRNA-19a-3p. CONCLUSIONS This study suggested that miR-184 and miR-19a-3p could target AGO2/PTEN/VEGF axis to induce endothelial dysfunction in Kawasaki disease.
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Affiliation(s)
- Jinwen Liao
- The Department of Pediatrics, The Third People's Hospital of Longgang District Shenzhen, Shenzhen, Guangdong, China
| | - Xin Guo
- The Department of Pediatrics, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong, China
| | - Xue Fan
- The Department of Pediatrics, The Third People's Hospital of Longgang District Shenzhen, Shenzhen, Guangdong, China
| | - Xiangtong Zhang
- The Department of Pediatrics, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong, China
| | - Mingguo Xu
- The Department of Pediatrics, The Third People's Hospital of Longgang District Shenzhen, Shenzhen, Guangdong, China
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Yang JM, Kim SJ, Park S, Son W, Kim A, Lee J. Exosomal miR-184 in the aqueous humor of patients with central serous chorioretinopathy: a potential diagnostic and prognostic biomarker. J Nanobiotechnology 2023; 21:242. [PMID: 37507708 PMCID: PMC10375666 DOI: 10.1186/s12951-023-02019-6] [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: 05/26/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Central serous chorioretinopathy (CSC) is the fourth most prevalent retinal disease leading to age-related macular degeneration (AMD) and retinal atrophy. However, CSC's pathogenesis and therapeutic target need to be better understood. RESULTS We investigated exosomal microRNA in the aqueous humor of CSC patients using next-generation sequencing (NGS) to identify potential biomarkers associated with CSC pathogenesis. Bioinformatic evaluations and NGS were performed on exosomal miRNAs obtained from AH samples of 62 eyes (42 CSC and 20 controls). For subgroup analysis, patients were divided into treatment responders (CSC-R, 17 eyes) and non-responders (CSC-NR, 25 eyes). To validate the functions of miRNA in CECs, primary cultured-human choroidal endothelial cells (hCEC) of the donor eyes were utilized for in vitro assays. NGS detected 376 miRNAs. Our results showed that patients with CSC had 12 significantly upregulated and 17 downregulated miRNAs compared to controls. miR-184 was significantly upregulated in CSC-R and CSC-NR patients compared to controls and higher in CSC-NR than CSC-R. In vitro assays using primary cultured-human choroidal endothelial cells (hCEC) demonstrated that miR-184 suppressed the proliferation and migration of hCECs. STC2 was identified as a strong candidate for the posttranscriptional down-regulated target gene of miR-184. CONCLUSION Our findings suggest that exosomal miR-184 may serve as a biomarker reflecting the angiostatic capacity of CEC in patients with CSC.
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Affiliation(s)
- Jee Myung Yang
- Department of Ophthalmology, Asan Medical Center, College of Medicine, University of Ulsan, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea
- Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang, South Korea
| | - Soo Jin Kim
- Department of Ophthalmology, Asan Medical Center, College of Medicine, University of Ulsan, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea
- Department of Medical Science, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul, South Korea
- Translational Biomedical Research Group, Asan Institute for Life Science, Asan Medical Center, Seoul, South Korea
| | | | - Wonyung Son
- Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, South Korea
| | - Anna Kim
- Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, South Korea
| | - Junyeop Lee
- Department of Ophthalmology, Asan Medical Center, College of Medicine, University of Ulsan, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
- Department of Medical Science, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul, South Korea.
- Translational Biomedical Research Group, Asan Institute for Life Science, Asan Medical Center, Seoul, South Korea.
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Gao Y, Song W, Hao F, Duo L, Zhe X, Gao C, Guo X, Liu D. Effect of Fibroblast Growth Factor 10 and an Interacting Non-Coding RNA on Secondary Hair Follicle Dermal Papilla Cells in Cashmere Goats' Follicle Development Assessed by Whole-Transcriptome Sequencing Technology. Animals (Basel) 2023; 13:2234. [PMID: 37444032 DOI: 10.3390/ani13132234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
Cashmere, a keratinised product of secondary hair follicles (SHFs) in cashmere goats, holds an important place in international high-end textiles. However, research on the complex molecular and signal regulation during the development and growth of hair follicles (HFs), which is essential for the development of the cashmere industry, is limited. Moreover, increasing evidence indicates that non-coding RNAs (ncRNAs) participate in HF development. Herein, we systematically investigated a competing endogenous RNA (ceRNA) regulatory network mediated by circular RNAs (circRNAs), microRNAs (miRNAs), and messenger RNAs (mRNAs) in skin samples of cashmere goat embryos, using whole-transcriptome sequencing technology. We obtained 6468, 394, and 239 significantly differentially expressed mRNAs, circRNAs, and miRNAs, respectively. These identified RNAs were further used to construct a ceRNA regulatory network, mediated by circRNAs, for cashmere goats at a late stage of HF development. Among the molecular species identified, miR-184 and fibroblast growth factor (FGF) 10 exhibited competitive targeted interactions. In secondary HF dermal papilla cells (SHF-DPCs), miR-184 promotes proliferation, inhibits apoptosis, and alters the cell cycle via the competitive release of FGF10. This study reports that FGF10 and its interaction with ncRNAs significantly affect SHF-DPCs, providing a reference for research on the biology of HFs in cashmere goats and other mammals.
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Affiliation(s)
- Yuan Gao
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Weiguo Song
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Fei Hao
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Lei Duo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xiaoshu Zhe
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Chunyan Gao
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xudong Guo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Dongjun Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
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Zhang J, Li P, Sun L, Jiang N, Guo W, Wang J, Gao F, Li J, Li H, Zhang J, Mu H, Hu Y, Cui X. Knockout of miR-184 in zebrafish leads to ocular abnormalities by elevating p21 levels. FASEB J 2023; 37:e22927. [PMID: 37086087 DOI: 10.1096/fj.202300067r] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/20/2023] [Accepted: 04/04/2023] [Indexed: 04/23/2023]
Abstract
miR-184 is one of the most abundant miRNAs expressed in the lens and corneal tissue. Mutations in the seed region of miR-184 are responsible for inherited anterior segment dysgenesis. Animal models recapitulating miR-184-related anterior segment dysgenesis are still lacking, and the molecular basis of ocular abnormalities caused by miR-184 dysfunction has not been well elucidated in vivo. In the present study, we constructed a miR-184-/- zebrafish line by destroying both two dre-mir-184 paralogs with CRISPR-Cas9 technology. Although there were no gross developmental defects, the miR-184-/- zebrafish displayed microphthalmia and cataract phenotypes. Cytoskeletal abnormalities, aggregation of γ-crystallin, and lens fibrosis were induced in miR-184-/- lenses. However, no obvious corneal abnormalities were observed in miR-184-/- zebrafish. Instead of apoptosis, deficiency of miR-184 led to aberrant cell proliferation and a robust increase in p21 levels in zebrafish eyes. Inhibition of p21 by UC2288 compromised the elevation of lens fibrosis markers in miR-184-/- lenses. RNA-seq demonstrated that levels of four transcriptional factors HSF4, Sox9a, CTCF, and Smad6a, all of which could suppress p21 expression, were reduced in miR-184-/- eyes. The predicted zebrafish miR-184 direct target genes (e.g., atp1a3a and nck2a) were identified and verified in miR-184-/- eye tissues. The miR-184-/- zebrafish is the first animal model mimicking miR-184-related anterior segment dysgenesis and could broaden our understanding of the roles of miR-184 in eye development.
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Affiliation(s)
- Jing Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Ping Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Luqian Sun
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Ning Jiang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Wenya Guo
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Jungai Wang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Fen Gao
- Kaifeng Key Lab of Myopia and Cataract, Kaifeng Central Hospital, Kaifeng, China
| | - Jing Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Hui Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Jun Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
| | - Hongmei Mu
- Kaifeng Key Lab of Myopia and Cataract, Kaifeng Central Hospital, Kaifeng, China
| | - Yanzhong Hu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiukun Cui
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, China
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Effects of Exosomal microRNAs on Oral Mucosal Epithelial Cells Cocultured with Limbal Niche Cells. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:9794950. [PMID: 36072625 PMCID: PMC9398820 DOI: 10.1155/2022/9794950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 11/18/2022]
Abstract
Autologous cultivated oral mucosal epithelial transplantation (COMET) is an important method for the treatment of limbal stem cell deficiency (LSCD), but the appearance of peripheral corneal neovascularization after COMET has prevented its widespread use in clinical practice. Using limbal niche cells (LNCs) as feeders in the process of coculturing could inhibit the postoperative corneal neovascularization. However, the specific mechanism is still unclear. In this study, LNCs were used as feeder cells to alter the phenotype of cultured oral mucosal epithelial cells (COMECs) by mimicking the primitive limbal microenvironment. The high-throughput sequencing of COMECs cocultured with LNCs or 3T3 cells (named LNCs group and 3T3 groups) was performed, and differential miRNA expression was analyzed. A total of 99 known and 1 newly predicted miRNAs were significantly upregulated in the LNCs group, while 101 known and 8 newly predicted miRNAs were significantly downregulated. A total of 3000 target genes with the 60 most significantly differentially expressed miRNAs were predicted, and 7 upregulated and 7 downregulated miRNAs were ultimately screened. The supernatants obtained from both cocultures were found to be rich in exosomes, indicating that the intercellular communication between COMECs and LNCs or 3T3 cells was highly active. Furthermore, the expression levels of rno-miR-200-5p, rno-miR-204-5p, rno-miR-126a-3p, rno-miR-192-5p, rno-miR-211-5p, rno-miR-143-3p, and rno-miR-184 were significantly higher in the LNCs group compared to the 3T3 group, and the expression levels had a similar trend in exosomes. Meanwhile, sequencing of the cell lines revealed 7 miRNAs that were significantly downregulated in the LNCs group. Interestingly, in that case, rno-miR-23a-3p, rno-miR-379-5p, and rno-miR-127-5p were also significantly downregulated in the exosomes. In summary, this study suggested that signal transduction between cells mediated by exosomal miRNAs may be an important factor for the inhibition of angiogenesis by LNCs nourished COMECs.
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Han L, Quan Z, Wu Y, Hao P, Wang W, Li Y, Zhang X, Liu P, Gao C, Wang H, Wang L, Zhang W, Yin D, Chang Y, Ding J. Expression Regulation Mechanisms of Sea Urchin (Strongylocentrotus intermedius) Under the High Temperature: New Evidence for the miRNA-mRNA Interaction Involvement. Front Genet 2022; 13:876308. [PMID: 35846155 PMCID: PMC9277089 DOI: 10.3389/fgene.2022.876308] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 06/13/2022] [Indexed: 11/18/2022] Open
Abstract
In the context of global warming and continuous high temperatures in the northern part of China during summer, the mortality rate of our main breeding species, Strongylocentrotus intermedius, reached 80% in 2020. How sea urchins respond to high temperatures is of great concern to academia and industry. In this study, we examined the antioxidant enzyme activities of different color tube-footed sea urchins under heat stress and compared their transcriptome and microRNA (miRNA) profiles using RNA-Seq. The results showed that the antioxidant enzyme activities of sea urchins were altered by thermal stress, and the changes in peroxidase activities of red tube-footed sea urchins were particularly significant. Investigations revealed that 1,079 differentially expressed genes (DEGs), 11 DE miRNAs, and 104 “DE miRNA-DEG” pairs in total were detected in sea urchins under high temperature stress. Several mRNA and miRNAs were significantly changed (e.g. HSP70, DnaJ11, HYAL, CALR, miR-184-p5, miR-92a, miR-92c, and miR-124-p5), suggesting these genes and miRNAs exerted important functions in response to high temperature. At the transcriptional level, red tube-footed sea urchins were found to be more sensitive to high temperature and could respond to high temperature rapidly. DE miRNA-mRNA network showed that miR-92b-3p and PC-5p-7420 were the most corresponding miRNAs. Five mRNAs (DnaJ11, SAR1B, CALR, HYOU1, TUBA) may be potential markers of sea urchin response to high temperature. Possible interaction between miRNA-mRNA could be linked to protein folding in the endoplasmic reticulum, Phagosomes, and calcium transport. This study provides a theoretical basis for the molecular mechanism of sea urchin heat tolerance and information that will aid in the selection and breeding of sea urchins with high temperature tolerance.
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Affiliation(s)
| | - Zijiao Quan
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yanglei Wu
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Pengfei Hao
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Wenpei Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yuanxin Li
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Xianglei Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Peng Liu
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Chuang Gao
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Heng Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Luo Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Weijie Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Donghong Yin
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Jun Ding
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
- *Correspondence: Jun Ding,
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11
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Aykutlu MŞ, Güçlü H, Doğanlar ZB, Kurtdere AK, Doğanlar O. MicroRNA-184 attenuates hypoxia and oxidative stress-related injury via suppressing apoptosis, DNA damage and angiogenesis in an in vitro age-related macular degeneration model. Toxicol In Vitro 2022; 83:105413. [PMID: 35690295 DOI: 10.1016/j.tiv.2022.105413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/13/2022] [Accepted: 06/03/2022] [Indexed: 11/16/2022]
Abstract
Age-related macular degeneration (AMD) is one of the leading causes of blindness worldwide, particularly in developed countries. Recently, microRNAs (miRs) have become popular research area to develop new treatment options of AMD. However, interaction between hsa-miR-184 and AMD remain largely unexplored. In this study, sub-lethal levels of Deforoxamine Mesylate salt (DFX) and H2O2 were applied to ARPE-19 cells to establish a severe in vitro AMD model, via durable hypoxia and oxidative stress. We found that up-regulation of miR-184 level in AMD can suppress hypoxia-related angiogenic signals through HIF-1α/VEGF/MMPs axis. Also, miR-184 suppressed the hypoxia sensor miR-155 and genes in the EGFR/PI3K/AKT pathway, which is an alternative pathway in angiogenesis. To investigate the mechanism behind this protective effect, we evaluated the impact of miR-184 on retinal apoptosis in a model of AMD. miR-184 inhibited retinal apoptosis by upregulating BCL-2 and downregulating pro-apoptototic BAX, TRAIL, Caspase 3 and 8 signals as well as p53. Taken together, miR-184 attenuates retinal cell damage induced by severe AMD pathologies through suppressing hypoxia, angiogenesis and apoptosis. The safety profile of miR-184 was observed to be similar to Bevacizumab, which is in wide use clinically, but miR-184 was found to provide a more effective therapeutic potential by regulating simultaneously multiple pathologies.
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Affiliation(s)
- Merve Şambel Aykutlu
- Trakya University Faculty of Medicine, Department of Ophthalmology, 22030 Edirne, Turkey.
| | - Hande Güçlü
- Trakya University Faculty of Medicine, Department of Ophthalmology, 22030 Edirne, Turkey
| | - Zeynep Banu Doğanlar
- Trakya University Faculty of Medicine, Department of Medical Biology, 22030 Edirne, Turkey.
| | - Ayşe Kardelen Kurtdere
- Trakya University Faculty of Medicine, Department of Medical Biology, 22030 Edirne, Turkey
| | - Oğuzhan Doğanlar
- Trakya University Faculty of Medicine, Department of Medical Biology, 22030 Edirne, Turkey.
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12
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Zhang L, Gao J, Gong A, Dong Y, Hao X, Wang X, Zheng J, Ma W, Song Y, Zhang J, Xu W. The Long Noncoding RNA LINC00963 Inhibits Corneal Fibrosis Scar Formation by Targeting miR-143-3p. DNA Cell Biol 2022; 41:400-409. [PMID: 35262384 PMCID: PMC9063159 DOI: 10.1089/dna.2021.1034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Corneal fibrosis is a complication of severe corneal injury, one of the major causes of vision loss. The formation of myofibroblasts has emerged as a key stimulative factor of corneal fibrosis. In the current study, we focused on the role of LINC00963 in regulating corneal fibrosis. Transforming growth factor β1 (TGF-β1) was used to induce human corneal stromal cells differentiating into corneal myofibroblasts, and the significant increase of α-smooth muscle actin (α-SMA) was verified by quantitative real-time PCR (qRT-PCR), western blot, and immunofluorescence, respectively. LINC00963 was identified to be one-half decreased compared with nonstimulated human corneal stromal cells, indicating that it might play a role in corneal fibrosis. Interestingly, overexpression of LINC00963 resulted in decreased formation of myofibroblasts indicating that it might exhibit an inhibiting effect. Moreover, bioinformatics tool was applied to predict the downstream target of LINC00963. We investigated that LINC00963 suppressed α-SMA induced by TGF-β1 in corneal fibroblasts, at least in part, by downregulating the expression of miR-143-3p. In addition, either LINC00963 promotion or miR-143-3p inhibition could significantly decrease myofibroblast contractility and collagen I and III secretion, which are the key to contribute to corneal fibrosis. Taken together, our study identified LINC00963 as a promising therapeutic target.
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Affiliation(s)
- Lixia Zhang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China.,Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Anjing Gong
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanhan Dong
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Xiaodan Hao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Xuekang Wang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China.,Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jian Zheng
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Wenmeng Ma
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Yiying Song
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Jie Zhang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Wenhua Xu
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
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13
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Kaplan N, Liu M, Wang J, Yang W, Fiolek E, Peng H, Lavker RM. Eph signaling is regulated by miRNA-210: Implications for corneal epithelial repair. FASEB J 2022; 36:e22076. [PMID: 34856019 PMCID: PMC8647904 DOI: 10.1096/fj.202101423r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/25/2021] [Accepted: 11/17/2021] [Indexed: 01/03/2023]
Abstract
A distinct boundary exists between the progenitor cells in the basal limbal epithelium and the more differentiated corneal epithelial basal cells. We have shown that reciprocal expression patterns of EphA2 and Ephrin-A1 are likely to contribute to normal limbal-corneal epithelial compartmentalization as well as play a role in response to injury. How this signaling axis is regulated remains unclear. We have demonstrated that microRNAs (miRNAs) play critical roles in corneal epithelial wound healing and several miRNAs (e.g. miR-210) have been predicted to target ephrins. Previous expression profiling experiments demonstrated that miR-210 is prominently expressed in corneal epithelial cells. RNA-seq data acquired from miR-210-depleted HCECs showed up-regulation of genes involved in cellular migration. In addition, miR-210 is decreased after corneal injury while EphA2 is increased. Moreover, antago-210-treated HCECs markedly enhanced wound closure in a scratch wound assay. Antago-210 treatment resulted in increased EphA2 protein levels as well as pS897-EphA2, the pro-migratory form of EphA2. As expected, Ephrin-A1 levels were reduced, while levels of a well-known target of miR-210, Ephrin-A3, were increased by antago-210 treatment. The increase in migration with antago-210 could be inhibited by Ephrin-A1 overexpression, Ephrin-A1-Fc treatment or siRNA depletion of EphA2. However, depletion of Ephrin-A3 did not have effects on the antago-210-induced increase in migration. In addition, Ephrin-A1 overexpression and siEphA2 dampened EGFR signaling, which is increased by antago-210. Our data clearly demonstrate a link between miR-210 and EphA2/Ephrin-A1 signaling that regulates, in part, corneal epithelial migration. This interaction might potentially control the limbal-corneal epithelial boundary.
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Affiliation(s)
- Nihal Kaplan
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA
| | - Min Liu
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA
| | - Junyi Wang
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA,Department of Ophthalmology, Ophthalmology and Visual Science Key Lab of PLA, Chinese PLA General Hospital, Beijing, China
| | - Wending Yang
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA
| | - Elaina Fiolek
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA
| | - Han Peng
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA,Correspondence: Robert M. Lavker, Ph.D., Department of Dermatology, Northwestern University, 303 East Chicago Avenue, Ward 9-124, Chicago, IL 60611, USA;
| | - Robert M. Lavker
- Department of Dermatology, Northwestern University, Chicago, IL, 60611, USA,Correspondence: Han Peng, Ph.D., Department of Dermatology, Northwestern University, 303 East Chicago Avenue, Ward 9-120, Chicago, IL 60611, USA;
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14
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Nakagawa A, Nakajima T, Azuma M. Tear miRNA expression analysis reveals miR-203 as a potential regulator of corneal epithelial cells. BMC Ophthalmol 2021; 21:377. [PMID: 34696757 PMCID: PMC8543880 DOI: 10.1186/s12886-021-02141-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 10/08/2021] [Indexed: 11/10/2022] Open
Abstract
Background microRNAs (miRNAs) are small noncoding RNAs that negatively regulate gene expression. They are found within cells and in body fluids. Extracellular miRNAs have been shown to associate with the surrounding tissues. Therefore, we predicted that miRNAs in tears may contribute to regulate corneal epithelial cell function. However, information on the miRNA expression profile of tears is limited and the specific functions of tear miRNAs for corneal epithelial cells are still unknown. To study the role of tear miRNAs, we determined which miRNAs are highly expressed in tears and examined the involvement of miRNAs in corneal epithelial cell viability. Methods miRNAs extracted from monkey tears and sera were subjected to microarray analysis. miRNAs of which expression levels were higher in tears than in sera were selected, and their expression levels were quantified by quantitative polymerase chain reaction (qPCR). To examine miRNA function, mimics and inhibitors of miRNAs were transfected into human corneal epithelial (HCE-T) cells and incubated for 24 or 48 h. After transfection of miRNA mimics and inhibitors, the viability of HCE-T cells was measured using the water soluble tetrazolium salt (WST) assay, and microarray analysis and qPCR were performed using total RNA extracted from HCE-T cells. siRNAs of the candidate targets for miR-203 were transfected into HCE-T cells and the WST assay was performed. To determine a direct target gene for miR-203, a dual luciferase reporter assay was performed in HCE-T cells using a luciferase reporter plasmid containing 3′-UTR of human IGFBP5. Results Microarray and qPCR analyses showed that miR-184 and miR-203 were expressed significantly more highly in tears than in sera (165,542.8- and 567.8-fold, respectively, p < 0.05). Of these two miRNAs, transfection of a miR-203 mimic significantly reduced the viability of HCE-T cells (p < 0.05), while a miR-203 inhibitor significantly increased this viability (p < 0.05). miR-203 mimic downregulated insulin-like growth factor-binding protein 5 (IGFBP5) and nuclear casein kinase and cyclin-dependent kinase substrate 1 (NUCKS1), while miR-203 inhibitor upregulated these two genes. Transfection of IGFBP5-siRNA decreased the viability of HCE-T cells. miR-203 mimic significantly diminished the luciferase reporter activity. Conclusions In this study, we identified miRNAs that are highly expressed in tears, and the inhibition of miR-203 increases the viability of corneal epithelial cells. Our results suggest that miR-203 contributes to regulating the homeostasis of corneal epithelial cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12886-021-02141-9.
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Affiliation(s)
- Ayumi Nakagawa
- Central Research Laboratories, Research and Development Division, Senju Pharmaceutical Co., Ltd., 6-4-3, Minatojima-Minamimachi, Chuo-Ku, Kobe, Hyogo, 650-0047, Japan
| | - Takeshi Nakajima
- Senju Laboratory of Ocular Sciences, Senju Pharmaceutical Co., Ltd., 6-4-3, Minatojima-Minamimachi, Chuo-Ku, Kobe, Hyogo, 650-0047, Japan
| | - Mitsuyoshi Azuma
- Senju Laboratory of Ocular Sciences, Senju Pharmaceutical Co., Ltd., 6-4-3, Minatojima-Minamimachi, Chuo-Ku, Kobe, Hyogo, 650-0047, Japan.
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15
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Latta L, Figueiredo FC, Ashery-Padan R, Collinson JM, Daniels J, Ferrari S, Szentmáry N, Solá S, Shalom-Feuerstein R, Lako M, Xapelli S, Aberdam D, Lagali N. Pathophysiology of aniridia-associated keratopathy: Developmental aspects and unanswered questions. Ocul Surf 2021; 22:245-266. [PMID: 34520870 DOI: 10.1016/j.jtos.2021.09.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/19/2021] [Accepted: 09/08/2021] [Indexed: 12/13/2022]
Abstract
Aniridia, a rare congenital disease, is often characterized by a progressive, pronounced limbal insufficiency and ocular surface pathology termed aniridia-associated keratopathy (AAK). Due to the characteristics of AAK and its bilateral nature, clinical management is challenging and complicated by the multiple coexisting ocular and systemic morbidities in aniridia. Although it is primarily assumed that AAK originates from a congenital limbal stem cell deficiency, in recent years AAK and its pathogenesis has been questioned in the light of new evidence and a refined understanding of ocular development and the biology of limbal stem cells (LSCs) and their niche. Here, by consolidating and comparing the latest clinical and preclinical evidence, we discuss key unanswered questions regarding ocular developmental aspects crucial to AAK. We also highlight hypotheses on the potential role of LSCs and the ocular surface microenvironment in AAK. The insights thus gained lead to a greater appreciation for the role of developmental and cellular processes in the emergence of AAK. They also highlight areas for future research to enable a deeper understanding of aniridia, and thereby the potential to develop new treatments for this rare but blinding ocular surface disease.
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Affiliation(s)
- L Latta
- Dr. Rolf. M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg, Saar, Germany; Department of Ophthalmology, Saarland University Medical Center, Homburg, Saar, Germany.
| | - F C Figueiredo
- Department of Ophthalmology, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom
| | - R Ashery-Padan
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
| | - J M Collinson
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, AB25 2ZD, United Kingdom
| | - J Daniels
- Cells for Sight, UCL Institute of Ophthalmology, University College London, London, EC1V 9EL, UK
| | - S Ferrari
- The Veneto Eye Bank Foundation, Venice, Italy
| | - N Szentmáry
- Dr. Rolf. M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg, Saar, Germany
| | - S Solá
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - R Shalom-Feuerstein
- Department of Genetics and Developmental Biology, The Rappaport Faculty of Medicine and Research Institute, Technion - Israel Institute of Technology, Haifa, Israel
| | - M Lako
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, UK
| | - S Xapelli
- Instituto Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - D Aberdam
- Centre de Recherche des Cordeliers, INSERM U1138, Team 17, France; Université de Paris, 75006, Paris, France.
| | - N Lagali
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Ophthalmology, Sørlandet Hospital Arendal, Arendal, Norway.
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16
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Exosomes derived from macrophages upon cobalt ion stimulation promote angiogenesis. Colloids Surf B Biointerfaces 2021; 203:111742. [PMID: 33838581 DOI: 10.1016/j.colsurfb.2021.111742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/21/2021] [Accepted: 03/31/2021] [Indexed: 10/21/2022]
Abstract
Angiogenesis is critical for tissue repair and regeneration, including implant osseointegration. It is well known that macrophages exert immunomodulatory functions in angiogenesis. However, whether macrophage-derived exosomes participate in the process is still unclear. Cobalt (Co) ions are frequently used as implant additives to mimic hypoxic microenvironment, which can induce angiogenesis through stabilizing hypoxia inducible factor-1α (HIF-1α) of macrophages and endothelial cells (ECs). The present work attempts to investigate whether exosomes derived from macrophages upon Co ion stimulation can mediate angiogenesis and the possible mechanism. The results show that the exosomes promote endothelial migration and angiogenesis in vitro and in vivo, particularly when Co ion concentration is 200 μM. Further studies reveal that the exosomes upregulating nitric oxide (NO), vascular endothelial growth factor (VEGF), and integrin β1 expression may be the underlying mechanism of the observations. Our findings provide new insights for Co ion mediated macrophage-EC communication and surface design of biomaterials from the perspective of pro-angiogenesis.
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17
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Di Zazzo A, Gaudenzi D, Yin J, Coassin M, Fernandes M, Dana R, Bonini S. Corneal angiogenic privilege and its failure. Exp Eye Res 2021; 204:108457. [PMID: 33493471 PMCID: PMC10760381 DOI: 10.1016/j.exer.2021.108457] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 12/16/2022]
Abstract
The cornea actively maintains its own avascular status to preserve its ultimate optical function. This corneal avascular state is also defined as "corneal angiogenic privilege", which results from a critical and sensitive balance between anti-angiogenic and pro-angiogenic mechanisms. In our review, we aim to explore the complex equilibrium among multiple mediators which prevents neovascularization in the resting cornea, as well as to unveil the evolutive process which leads to corneal angiogenesis in response to different injuries.
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Affiliation(s)
- Antonio Di Zazzo
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy.
| | - Daniele Gaudenzi
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| | - Jia Yin
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Marco Coassin
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| | - Merle Fernandes
- Cornea and Anterior Segment Services, LV Prasad Eye Institute, GMR Varalakshmi Campus, Visakhapatnam, India
| | - Reza Dana
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Stefano Bonini
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
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18
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Yaşar M, Çakmak H, Dündar S, Örenay Boyacıoğlu S, Çalışkan M, Ergin K. The role of microRNAs in corneal neovascularization and its relation to VEGF. Cutan Ocul Toxicol 2020; 39:341-347. [PMID: 32854552 DOI: 10.1080/15569527.2020.1813749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE This study aimed to investigate the changes in the level of miRNA associated with Vascular Endothelial Growth Factor (VEGF) in corneal neovascularization (CNV), to elucidate the process of CNV formation and, thus, to prepare the ground for further experimental, and clinical studies together with drug treatments. METHODS Twelve male Wistar-Albino rats were randomly divided into two groups of six, and two corneas of each rat were used. In all groups, CNV was generated by silver nitrate sticks. At the end of the study, rats were sacrificed by cervical dislocation under ether anaesthesia, and then, their corneas were removed. The expression levels of VEGF and miRNA in corneas were determined by qRT-PCR array and qRT-PCR. Data analysis was performed using web-based software named PCR array data. RESULTS When the corneal samples of rats with CNV were compared to those of the control rats, it was found that a statistically significant difference was present regarding the VEGF level (p < 0.05) with the fold-regulation value> 2. According to the under- and over-expression data in miRNA PCR Array findings of both groups, statistically significant differences were found regarding nine genes with Fold-regulation value <-2 and Fold-regulation value> 2 (p < 0.05). When the corneal samples of the rats with CNV were compared to those of the control rats, statistically significant over-expressions (Fold-regulation value> 2) of rno-miR-21_2, rno-miR-126_1 and rno-miR-150_1 genes were found (p = 0.002443, p = 0.030146, p = 0.000348, respectively). In the same comparison, rno-miR-184_1 gene showed statistically significant under-expression with a Fold-regulation value <-2 (p = 0.006428). Also, in the comparison of the two groups, the fold regulation value of the rno-miR-31_1 gene was found to be close to - g and statistically significantly under-expressed (p = 0.005082). CONCLUSION The over-expressions of rno-miR-21_2, rno-miR-126_1, and rno-miR-150_1 genes, and the under-expression of rno-miR-184_1 gene were thought to could play roles in the formation process of CNV by regulation of VEGF-A and through modulation of angiogenesis.
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Affiliation(s)
- Mimbay Yaşar
- Department of Ophthalmology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Harun Çakmak
- Department of Ophthalmology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Sema Dündar
- Department of Ophthalmology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Seda Örenay Boyacıoğlu
- Department of Medical Genetics, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Metin Çalışkan
- Department of Medical Genetics, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Kemal Ergin
- Department of Histology and Embryology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
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19
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Cao Q, Xu W, Chen W, Peng D, Liu Q, Dong J, Reinach PS, Yan D. MicroRNA-184 negatively regulates corneal epithelial wound healing via targeting CDC25A, CARM1, and LASP1. EYE AND VISION 2020; 7:35. [PMID: 32766356 PMCID: PMC7395415 DOI: 10.1186/s40662-020-00202-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 06/15/2020] [Indexed: 11/10/2022]
Abstract
Background MicroRNAs (miRNAs) play critical roles in corneal development and functional homeostasis. Our previous study identified miR-184 as one of the most highly expressed miRNAs in the corneal epithelium. Even though its expression level plummeted dramatically during corneal epithelial wound healing (CEWH), its precise role in mediating corneal epithelial renewal was unresolved. The present study aimed to reveal the function and mechanism of miR-184 in regulating CEWH. Methods Quantitative RT-PCR analysis characterized the miR-184 expression pattern during CEWH in mice. Ectopic miR-184 injection determined its effect on this process in vivo. We evaluated the effects of miR-184 and its target genes on the proliferation, cell cycle, and migration of human corneal epithelial cells (HCECs) using MTS, flow cytometry, and wound-healing assay, respectively. Bioinformatic analysis, in conjunction with gene microarray analysis and cell-based luciferase assays, pinpointed gene targets of miR-184 contributing to CEWH. Results MiR-184 underwent marked downregulation during mouse CEWH. Ectopic miR-184 overexpression delayed this process in mice. Furthermore, miR-184 transfection into HCECs significantly inhibited cell proliferation, cell cycle progression, and cell migration. MiR-184 directly targeted CDC25A, CARM1, and LASP1, and downregulated their expression in HCECs. CARM1 downregulation inhibited both HCEC proliferation and migration, whereas a decrease in LASP1 gene expression only inhibited migration. Conclusions Our results demonstrate that miR-184 inhibits corneal epithelial cell proliferation and migration via targeting CDC25A, CARM1, and LASP1, suggesting it acts as a negative modulator during CEWH. Therefore, identifying strategies to suppress miR-184 expression levels has the potential to promote CEWH.
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Affiliation(s)
- Qiongjie Cao
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Weiwei Xu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Weiwei Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Dewei Peng
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Qi Liu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Jing Dong
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Peter S Reinach
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
| | - Dongsheng Yan
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, 325027 Zhejiang China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang China
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Lavker RM, Kaplan N, Wang J, Peng H. Corneal epithelial biology: Lessons stemming from old to new. Exp Eye Res 2020; 198:108094. [PMID: 32697979 DOI: 10.1016/j.exer.2020.108094] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/13/2022]
Abstract
The anterior surface of the eye functions as a barrier to the external environment and protects the delicate underlying tissues from injury. Central to this protection are the corneal, limbal and conjunctival epithelia. The corneal epithelium is a self-renewing stratified squamous epithelium that protects the underlying delicate structures of the eye, supports a tear film and maintains transparency so that light can be transmitted to the interior of the eye (Basu et al., 2014; Cotsarelis et al., 1989; Funderburgh et al., 2016; Lehrer et al., 1998; Pajoohesh-Ganji and Stepp, 2005; Parfitt et al., 2015; Peng et al., 2012b; Stepp and Zieske, 2005). In this review, dedicated to James Funderburgh and his contributions to visual science, in particular the limbal niche, corneal stroma and corneal stromal stem cells, we will focus on recent data on the identification of novel regulators in corneal epithelial cell biology, their roles in stem cell homeostasis, wound healing, limbal/corneal boundary maintenance and the utility of single cell RNA sequencing (scRNA-seq) in vision biology studies.
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Affiliation(s)
- Robert M Lavker
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - Nihal Kaplan
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Junyi Wang
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Department of Ophthalmology, The First Center of the PLA General Hospital, Haidian District, Beijing, China
| | - Han Peng
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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21
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Chen E, Bohm K, Rosenblatt M, Kang K. Epigenetic regulation of anterior segment diseases and potential therapeutics. Ocul Surf 2020; 18:383-395. [PMID: 32344150 DOI: 10.1016/j.jtos.2020.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/31/2020] [Accepted: 04/03/2020] [Indexed: 12/22/2022]
Abstract
In recent years, technological advances in sequencing have accelerated our understanding of epigenetics in ocular development and ophthalmic diseases. We now know that epigenetic modifications are necessary for normal ocular development and biological processes such as corneal wound healing and ocular surface repair, while aberrant epigenetic regulation underlies the pathogenesis of a wide range of ocular diseases, including cataracts and various diseases of the ocular surface. As the epigenetics of the eye is a constantly changing field of medicine, this comprehensive review focuses on innovations and scientific discoveries related to epigenetic control of anterior segment diseases that were published in the English literature in the past five years. These recent studies attempt to elucidate therapeutic targets for the anterior segment pathological processes. Already, recent studies have shown therapeutic potential in targeting epigenetic mechanisms of ocular diseases, and new epigenetic therapies are on the verge of being introduced to clinical practice. New drug targets can potentially emerge as we make further discoveries within this field.
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Affiliation(s)
- Eric Chen
- Illinois Eye and Ear Infirmary, Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, United States
| | - Kelley Bohm
- Illinois Eye and Ear Infirmary, Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, United States
| | - Mark Rosenblatt
- Illinois Eye and Ear Infirmary, Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, United States
| | - Kai Kang
- Illinois Eye and Ear Infirmary, Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, United States.
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22
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Wang Y, Lu J, Chen L, Bian H, Hu J, Li D, Xia C, Xu H. Tumor-Derived EV-Encapsulated miR-181b-5p Induces Angiogenesis to Foster Tumorigenesis and Metastasis of ESCC. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 20:421-437. [PMID: 32244169 PMCID: PMC7118284 DOI: 10.1016/j.omtn.2020.03.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/14/2020] [Accepted: 03/10/2020] [Indexed: 02/06/2023]
Abstract
Pathological angiogenesis is necessary for tumor development and metastasis. Tumor-derived extracellular vesicles (EVs) play an important role in mediating the crosstalk between cancer cells and vascular endothelial cells. To date, whether and how microRNAs (miRNAs) encapsulated in tumor-derived EVs affect angiogenesis in esophageal squamous cell carcinoma (ESCC) remains unclear. Here, we showed that miR-181b-5p, an angiogenesis-promoting miRNA of ESCC, can be transferred from ESCC cells to vascular endothelial cells via EVs. In addition, ESCC-derived EVs-miR-181b-5p dramatically induced angiogenesis by targeting PTEN and PHLPP2, and thereby facilitated tumor growth and metastasis. Moreover, miR-181b-5p was highly expressed in ESCC tissues and serum EVs. High miR-181b-5p expression level in ESCC patients was well predicted for poor overall survival. Our work suggests that intercellular crosstalk between tumor cells and vascular endothelial cells is mediated by tumor-derived EVs. miR-181b-5p-enriched EVs secreted from ESCC cells are involved in angiogenesis that control metastasis of ESCC, providing a potential diagnostic biomarker or drug target for ESCC patients.
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Affiliation(s)
- Ying Wang
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Jiqiang Lu
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Lin Chen
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Huan Bian
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Jialiang Hu
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Dongping Li
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Chunlei Xia
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Hanmei Xu
- The Engineering Research Center of Synthetic Peptide Drug Discovery and Evaluation of Jiangsu Province, China Pharmaceutical University, Nanjing 210009, China; State Key Laboratory of Natural Medicines, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China.
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Wu P, Zhang D, Geng Y, Li R, Zhang Y. Circular RNA-ZNF609 regulates corneal neovascularization by acting as a sponge of miR-184. Exp Eye Res 2020; 192:107937. [PMID: 31954666 DOI: 10.1016/j.exer.2020.107937] [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: 10/09/2019] [Revised: 12/19/2019] [Accepted: 01/14/2020] [Indexed: 01/14/2023]
Abstract
Corneal neovascularization can cause abnormal blood vessels to grow in the normally transparent and translucent cornea leading to various sight-threatening eye diseases. microRNAs and circular RNAs are known to play essential roles in the regulation of numerous biological functions. It is urgently needed to understand the molecular mechanism of miRNAs and circular RNAs in the corneal neovascularization. We aimed to elucidate the role of a specific a circular RNA, cZNF609, in the corneal neovascularization. cZNF609 and miR-184 levels were determined by RT-qPCR. Luciferase reporter assay and RNA immunoprecipitation assay were conducted to verify the target of cZNF609. The biological function of cZNF609 and miR-184 were assessed via cell proliferation, migration, and tube formation assays in vitro as well as the corneal suture model in vivo. The up-regulation of cZNF609 and down-regulation of miR-184 were observed during corneal neovascularization. cZNF609 acted as a miR-184 sponge to block miR-184 activity. Overexpression of miR-184 suppressed HCEKs cell proliferation, migration in vitro, and angiogenesis in vivo. The miR-184-mediated inhibition effect can be rescued through the re-introduction of cZNF609. Mechanically, cZNF609/miR-184 interaction regulated the downstream Akt and VEGF signaling pathway. Intervention of cZNF609 and miR-184 may serve as a potential strategy for pathological corneal neovascularization treatment.
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Affiliation(s)
- Pengcheng Wu
- Department of Ophthalmology, Lanzhou University Second Hospital, No.82 Cuiyingmen, Lanzhou, 730030, Gansu, China.
| | - Dongyan Zhang
- Department of Ophthalmology, Lanzhou University Second Hospital, No.82 Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Yuanyuan Geng
- Department of Ophthalmology, Lanzhou University Second Hospital, No.82 Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Rui Li
- Department of Ophthalmology, Lanzhou University Second Hospital, No.82 Cuiyingmen, Lanzhou, 730030, Gansu, China
| | - Yanan Zhang
- Department of Ophthalmology, Lanzhou University Second Hospital, No.82 Cuiyingmen, Lanzhou, 730030, Gansu, China
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MicroRNA-31/184 is involved in transforming growth factor-β-induced apoptosis in A549 human alveolar adenocarcinoma cells. Life Sci 2019; 242:117205. [PMID: 31874165 DOI: 10.1016/j.lfs.2019.117205] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/04/2019] [Accepted: 12/17/2019] [Indexed: 12/25/2022]
Abstract
AIMS TGF-β-induced alveolar epithelial cells apoptosis were involved in idiopathic pulmonary fibrosis (IPF). This study aimed to explore potential targets and mechanisms of IPF. MAIN METHODS mRNA and microRNA arrays were used to analyze differentially expressed genes and miRNAs. Several essential targets of TGF-β-SMADs and TGF-β-PI3K-AKT pathways were detected. KEY FINDINGS miR-31 and miR-184 expression levels were positively correlated with smad6 and smad2/akt expression levels in IPF patients. TGF-β could induce miR-31 and suppress miR-184 levels in A549 cells. miR-31 was confirmed to bind to the smad6-3'UTR and functionally suppress its expression. Down-regulated SMAD6 enhanced SMAD2/SMAD4 dimer formation and translocation due to its failure to prevent SMAD2 phosphorylation. In contrast, anti-fibrotic functions of miR-184 were abolished due to TGF-β directly suppressing miR-184 levels in A549 cells. When A549 was stimulated by TGF-β combined with or without miR-31 inhibitor/miR-184 mimic, it was showed that depleted miR-31 and/or increased miR-184 significantly ameliorated TGF-β-induced viability of A549 cells, as well as inhibited the expression of profibrotic factors, MMP7 and RUNX2. SIGNIFICANCE Inhibiting miR-31 and/or promoting miR-184 protect against TGF-β-induced fibrogenesis by respectively repressing the TGF-β-SMAD2 and TGF-β-PI3K-AKT signaling pathways, implying that miR-31/184 are potential targets and suggesting a new management strategy for IPF.
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25
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Pan J, Wang X, Li D, Li J, Jiang Z. MSCs inhibits the angiogenesis of HUVECs through the miR-211/Prox1 pathway. J Biochem 2019; 166:107-113. [PMID: 31143937 DOI: 10.1093/jb/mvz038] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/07/2019] [Indexed: 01/28/2023] Open
Abstract
The aim of this study was to investigate the effect of mesenchymal stem cells (MSCs) on the angiogenesis of human umbilical vein endothelial cells (HUVECs). MSCs were subconjunctival injected into rat corneal alkali burn models. Their impacts on the degree of corneal neovascularization (CNV) and corneal opacity were evaluated at 3, 6, 9 and 12 days after injection. An in vitro experiment of MSCs affecting HUVECs angiogenesis was performed and evaluated using the tube formation assay. The results showed that both CNV and corneal opacity were decreased in rats after MSCs injection. In HUVECs, angiogenesis of cells was inhibited by miR-211 overexpression. miR-211 negatively regulated Prox1 expression. Knockdown of miR-211 blocked the decrease of Prox1 expression induced by MSCs and the inhibitory effect of MSCs on the angiogenesis of HUVECs. The critical role of miR-211 in MSCs inhibition of corneal angiogenesis was confirmed in rat experiments. We concluded that MSCs inhibited the angiogenesis of HUVEC through miR-211 mediating the down-regulation of Prox1.
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Affiliation(s)
- Jian Pan
- Department of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, China
| | - Xianglong Wang
- Department of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, China
| | - Dequan Li
- Department of Traumatology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, China
| | - Jianmin Li
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, China
| | - Zipei Jiang
- Department of Ophthalmology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, Zhejiang, China
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26
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Veith AP, Henderson K, Spencer A, Sligar AD, Baker AB. Therapeutic strategies for enhancing angiogenesis in wound healing. Adv Drug Deliv Rev 2019; 146:97-125. [PMID: 30267742 DOI: 10.1016/j.addr.2018.09.010] [Citation(s) in RCA: 415] [Impact Index Per Article: 83.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 09/15/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Abstract
The enhancement of wound healing has been a goal of medical practitioners for thousands of years. The development of chronic, non-healing wounds is a persistent medical problem that drives patient morbidity and increases healthcare costs. A key aspect of many non-healing wounds is the reduced presence of vessel growth through the process of angiogenesis. This review surveys the creation of new treatments for healing cutaneous wounds through therapeutic angiogenesis. In particular, we discuss the challenges and advancement that have been made in delivering biologic, pharmaceutical and cell-based therapies as enhancers of wound vascularity and healing.
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27
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Long non-coding RNA H19 promotes corneal neovascularization by targeting microRNA-29c. Biosci Rep 2019; 39:BSR20182394. [PMID: 30948500 PMCID: PMC6499455 DOI: 10.1042/bsr20182394] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/17/2019] [Accepted: 03/26/2019] [Indexed: 12/31/2022] Open
Abstract
Long non-coding RNA (lncRNA) H19 has been implicated in tumor angiogenesis. However, whether H19 regulates the progression of corneal neovascularization (CNV) is unclear. The present study aimed to determine the function of H19 in CNV and its possible molecular mechanism. Here, we found that the H19 levels were remarkably increased in vascularized corneas and basic fibroblast growth factor (bFGF)-treated human umbilical vein endothelial cells (HUVECs). In vitro, H19 up-regulation promoted proliferation, migration, tube formation and vascular endothelial growth factor A (VEGFA) expression in HUVECs, and it was found to down-regulate microRNA-29c (miR-29c) expression. Bioinformatics analysis revealed that H19 mediated the above effects by binding directly to miR-29c. In addition, miR-29c expression was markedly reduced in vascularized corneas and its expression also decreased in bFGF-treated HUVECs in vitro. MiR-29c targeted the 3′ untranslated region (3′-UTR) of VEGFA and decreased its expression. These data suggest that H19 can enhance CNV progression by inhibiting miR-29c, which negatively regulates VEGFA. This novel regulatory axis may serve as a potential therapeutic target for CNV.
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28
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Liu ZY, Gao XP, Zhu S, Liu YH, Wang LJ, Jing CX, Zeng FF. Dietary inflammatory index and risk of gynecological cancers: a systematic review and meta-analysis of observational studies. J Gynecol Oncol 2019; 30:e23. [PMID: 30887752 PMCID: PMC6424848 DOI: 10.3802/jgo.2019.30.e23] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 10/21/2018] [Accepted: 11/09/2018] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE There has been growing body of literatures showing that chronic inflammation might play an important role in cancer development. This meta-analysis aimed to assess the association between the dietary inflammation index (DII) score and gynecological cancers. METHODS A systematic search of PubMed, EMBASE and Web of Science up until October 20, 2018 was carried out to retrieve all related cohort and case-control studies. The summary risk assessments were pooled using random-effects models. The dose-response relationship was estimated by linear relationship model. RESULTS Twelve case-control studies (10,774 cases/15,958 controls) and six prospective cohort studies (330,363 participants/23,133 incident cases) were included in this meta-analysis. The pooled adjusted relative risk (RR) of gynecological cancers for the highest DII category compared to the lowest category was 1.38, (95% confidence intervals [CIs], 1.21-1.56, p<0.001]. A positive dose-response relationship was also noticed. Stratified by study design indicated that, the pooled RRs was significantly higher for case-control studies than cohort studies (p for interaction<0.001), for studies conducted among participants with body mass index (BMI) ≥25 kg/m² than participants with BMI <25 kg/m² (p for interaction=0.026), among participants with ovarian cancer and endometrial cancer than participants with breast cancer (p for interaction = 0.038). Meta-regression analysis further confirmed that study design significantly contributed to inter-study heterogeneity (p<0.001). CONCLUSION This meta-analysis suggests that elevated DII is independently associated with a higher risk of gynecological cancers, especially patients with ovarian cancer and endometrial cancer and among obese participants.
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Affiliation(s)
- Ze Ying Liu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xu Ping Gao
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Sui Zhu
- Department of Medical Statistics, School of Medicine, Jinan University, Guangzhou, China
| | - Yan Hua Liu
- Department of Nutrition, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Li Jun Wang
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou, China
| | - Chun Xia Jing
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Fang Fang Zeng
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China.
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Mukwaya A, Jensen L, Peebo B, Lagali N. MicroRNAs in the cornea: Role and implications for treatment of corneal neovascularization. Ocul Surf 2019; 17:400-411. [PMID: 30959113 DOI: 10.1016/j.jtos.2019.04.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/25/2019] [Accepted: 04/01/2019] [Indexed: 12/18/2022]
Abstract
With no safe and efficient approved therapy available for treating corneal neovascularization, the search for alternative and effective treatments is of great importance. Since the discovery of miRNAs as key regulators of gene expression, knowledge of their function in the eye has expanded continuously, facilitated by high throughput genomic tools such as microarrays and RNA sequencing. Recently, reports have emerged implicating miRNAs in pathological and developmental angiogenesis. This has led to the idea of targeting these regulatory molecules as a therapeutic approach for treating corneal neovascularization. With the growing volume of data generated from high throughput tools applied to study corneal neovascularization, we provide here a focused review of the known miRNAs related to corneal neovascularization, while presenting new experimental data and insights for future research and therapy development.
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Affiliation(s)
- Anthony Mukwaya
- Department of Ophthalmology, Institute for Clinical and Experimental Medicine, Faculty of Health Sciences, Linkoping University, Linköping, Sweden
| | - Lasse Jensen
- Department of Medical and Health Sciences, Division of Cardiovascular Medicine, Linköping University, Linköping, Sweden
| | - Beatrice Peebo
- Department of Ophthalmology, Institute for Clinical and Experimental Medicine, Faculty of Health Sciences, Linkoping University, Linköping, Sweden
| | - Neil Lagali
- Department of Ophthalmology, Institute for Clinical and Experimental Medicine, Faculty of Health Sciences, Linkoping University, Linköping, Sweden; Department of Ophthalmology, Sørlandet Hospital Arendal, Arendal, Norway.
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30
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Tao P, Feng J, Li Q, Liu W, Yang L, Zhao X, Ni H, Xia P. Expression of miR-664 and miR-184 on proliferation, apoptosis and migration of osteosarcoma cells. Oncol Lett 2018; 17:1791-1797. [PMID: 30675239 PMCID: PMC6341773 DOI: 10.3892/ol.2018.9739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 11/01/2018] [Indexed: 12/15/2022] Open
Abstract
The expression of micro-ribonucleic acid miR-664 and miR-184 on the biological characteristics of osteosarcoma (OS) SOSP-9607 cells was investigated. Eighteen surgical specimens of OS and 18 normal tissue specimens were collected. The expression of miR-664 and miR-184 was detected via fluorescence reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The OS cell line SOSP-9607 was selected as the object of study, and miR-664 blank group, miR-664 mimic group, miR-664 inhibitor group, miR-184 blank group, miR-184 mimic group and miR-184 inhibitor group were established through transfection. Changes in apoptosis were detected via flow cytometry, the cell proliferation capacity was detected via Cell Counting Kit-8 assay, and the cell migration was observed via wound healing assay. In cancer tissues of OS patients, the relative expression of miR-664 and miR-184 was significantly higher than that in para-carcinoma tissues (P<0.05). The cell growth in miR-664 inhibitor group was obviously decreased compared with those in miR-664 blank and mimic groups (P<0.05). There were differences in the cell migration capacity among groups (P<0.01), and the cell scratch areas in miR-664 and miR-184 mimic groups were significantly decreased compared with those in miR-664 and miR-184 blank groups (P<0.05), while they were significantly increased in miR-664 and miR-184 inhibitor groups compared with those in miR-664 and miR-184 blank and mimic groups (P<0.05, P<0.01). There were differences in the apoptosis rate among groups (P<0.01) and apoptosis in miR-664 and miR-184 inhibitor groups was remarkably increased compared with those in miR-664 and miR-184 blank and mimic groups (P<0.05). Downregulating the expression of miR-664 and miR-184 may promote apoptosis, inhibit the proliferation and reduce the migration capacity of SOSP-9607 cells. Therefore, miR-664 and miR-184 may provide a theoretical basis for the target selection in clinical targeted therapy and drug development for OS.
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Affiliation(s)
- Pengfei Tao
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
| | - Jing Feng
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
| | - Qiong Li
- Department of Radiology, Taihe Hospital Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Wei Liu
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
| | - Lin Yang
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
| | - Xiaolong Zhao
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
| | - Huan Ni
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
| | - Ping Xia
- Department of Spine Surgery, Wuhan No. 1 Hospital, Wuhan, Hubei 430022, P.R. China
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31
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Exosomes from normal and diabetic human corneolimbal keratocytes differentially regulate migration, proliferation and marker expression of limbal epithelial cells. Sci Rep 2018; 8:15173. [PMID: 30310159 PMCID: PMC6182003 DOI: 10.1038/s41598-018-33169-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/19/2018] [Indexed: 12/13/2022] Open
Abstract
Limbal epithelial stem cells (LESC) maintenance requires communication between stem cells and neighboring stromal keratocytes. Extracellular vesicles (EVs) are important for intercellular communication in various stem cell niches. We explored the regulatory roles of limbal stromal cell (LSC)-derived exosomes (Exos), an EV sub-population, in limbal epithelial cells (LEC) in normal and diabetic limbal niche and determined differences in Exo cargos from normal and diabetic LSC. Wound healing and proliferation rates in primary normal LEC were significantly enhanced upon treatment by normal Exos (N-Exos), but not by diabetic Exos (DM-Exos). Western analysis showed increased Akt phosphorylation in wounded LECs and organ-cultured corneas treated with N-Exos, compared to untreated wounded cells and DM-Exos treated fellow corneas, respectively. N-Exos treated organ-cultured corneas showed upregulation of putative LESC markers, keratin 15 (K15) and Frizzled-7, compared to the DM-Exos treated fellow corneas. By next generation sequencing, we identified differentially expressed small RNAs including microRNAs in DM-Exos vs. N-Exos. Overall, N-Exos have greater effect on LEC proliferation and wound healing than DM-Exos, likely by activating Akt signaling. The small RNA differences in Exos from diabetic vs. normal LSC could contribute to the disease state. Our study suggests that exosomes may serve as novel therapeutic tools for diabetic cornea.
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32
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Yin R, Guo L, Gu J, Li C, Zhang W. Over expressing miR-19b-1 suppress breast cancer growth by inhibiting tumor microenvironment induced angiogenesis. Int J Biochem Cell Biol 2018; 97:43-51. [DOI: 10.1016/j.biocel.2018.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/01/2018] [Accepted: 02/05/2018] [Indexed: 12/26/2022]
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33
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Liu S, Romano V, Steger B, Kaye SB, Hamill KJ, Willoughby CE. Gene-based antiangiogenic applications for corneal neovascularization. Surv Ophthalmol 2018; 63:193-213. [DOI: 10.1016/j.survophthal.2017.10.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 10/09/2017] [Accepted: 10/12/2017] [Indexed: 12/22/2022]
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Differential Expression of miRNAs in the Respiratory Tree of the Sea Cucumber Apostichopus japonicus Under Hypoxia Stress. G3-GENES GENOMES GENETICS 2017; 7:3681-3692. [PMID: 28916650 PMCID: PMC5677170 DOI: 10.1534/g3.117.1129] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The sea cucumber, an important economic species, has encountered high mortality since 2013 in northern China because of seasonal environmental stress such as hypoxia, high temperature, and low salinity. MicroRNAs (miRNAs) are important in regulating gene expression in marine organisms in response to environmental change. In this study, high-throughput sequencing was used to investigate alterations in miRNA expression in the sea cucumber under different levels of dissolved oxygen (DO). Nine small RNA libraries were constructed from the sea cucumber respiratory trees. A total of 26 differentially expressed miRNAs, including 12 upregulated and 14 downregulated miRNAs, were observed in severe hypoxia (DO 2 mg/L) compared with mild hypoxia (DO 4 mg/L) and normoxic conditions (DO 8 mg/L). Twelve differentially expressed miRNAs were clustered in severe hypoxia. In addition, real-time PCR revealed that 14 randomly selected differentially expressed miRNAs showed significantly increased expressions in severe hypoxia and the expressions of nine miRNAs, including key miRNAs such as Aja-miR-1, Aja-miR-2008, and Aja-miR-184, were consistent with the sequencing results. Moreover, gene ontology and pathway analyses of putative target genes suggest that these miRNAs are important in redox, transport, transcription, and hydrolysis under hypoxia stress. Notably, novel-miR-1, novel-miR-2, and novel-miR-3 were specifically clustered and upregulated in severe hypoxia, which may provide new insights into novel “hypoxamiR” identification. These results will provide a basis for future studies of miRNA regulation and molecular adaptive mechanisms in sea cucumbers under hypoxia stress.
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Nie Y, Zhang K, Zhang S, Wang D, Han Z, Che Y, Kong D, Zhao Q, Han Z, He ZX, Liu N, Ma F, Li Z. Nitric oxide releasing hydrogel promotes endothelial differentiation of mouse embryonic stem cells. Acta Biomater 2017; 63:190-199. [PMID: 28859902 DOI: 10.1016/j.actbio.2017.08.037] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 08/22/2017] [Accepted: 08/28/2017] [Indexed: 12/11/2022]
Abstract
Transplantation of endothelial cells (ECs) holds great promise for treating various kinds of ischemic diseases. However, the major challenge in ECs-based therapy in clinical applications is to provide high quality and enough amounts of cells. In this study, we developed a simple and efficient system to direct endothelial differentiation of mouse embryonic stem cells (ESCs) using a controllable chitosan nitric oxide (NO)-releasing hydrogel (CS-NO). ESCs were plated onto the hydrogel culture system, and the expressions of differentiation markers were measured. We found that the expression of Flk-1 (early ECs marker) and VE-cadherin (mature ECs marker) increased obviously under the controlled NO releasing environment. Moreover, the Flk-1 upregulation was accompanied by the activation of the phospho-inositide-3 kinase (PI3K)/Akt signaling. We also found that in the presence of the PI3K inhibitor (LY294002), the endothelial commitment of ESCs was abolished, indicating the importance of Akt phosphorylation in the endothelial differentiation of ESCs. Interestingly, in the absence of NO, the activation of Akt phosphorylation alone by using AKT activator (SC-79) did not profoundly promote the endothelial differentiation of ESCs, suggesting an interdependent relationship between NO and the Akt phosphorylation in driving endothelial fate specification of ESCs. Taken together, we demonstrated that NO releasing in a continuous and controlled manner is a simple and efficient method for directing the endothelial differentiation of ESCs without adding growth factors. STATEMENT OF SIGNIFICANCE Fascinating data continues to show that artificial stem cell niche not only serve as a physical supporting scaffold for stem cells proliferation, but also as a novel platform for directing stem cell differentiation. Because of the lack of proper microenvironment for generating therapeutic endothelial cells (ECs) in vitro, the source of ECs for transplantation is the major limitation in ECs-based therapy to clinical applications. The current study established a feeder cell-free, 2-dimensional culture system for promoting the differentiation processes of embryonic stem cells (ESCs) committed to the endothelial lineage via using a nitric oxide (NO) controlled releasing hydrogel (CS-NO). Notably, the NO releasing from the hydrogel could selectively up-regulate Flk-1 (early ECs marker) and VE-cadherin (mature ECs marker) in the absence of growth factors, which was of crucial importance in the endothelial differentiation of ESCs. In summary, the current study proposes a simple and efficient method for directing the endothelial differentiation of ESCs without extra growth factors.
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Affiliation(s)
- Yan Nie
- Nankai University School of Medicine, Tianjin, China; State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, The College of Life Science, Tianjin, China
| | - Kaiyue Zhang
- Nankai University School of Medicine, Tianjin, China
| | | | - Dan Wang
- Nankai University School of Medicine, Tianjin, China
| | - Zhibo Han
- Beijing Engineering Laboratory of Perinatal Stem Cells, Beijing Institute of Health and Stem Cells, Health & Biotech Co., Beijing, China
| | - Yongzhe Che
- Nankai University School of Medicine, Tianjin, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, The College of Life Science, Tianjin, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, The College of Life Science, Tianjin, China
| | - Zhongchao Han
- Beijing Engineering Laboratory of Perinatal Stem Cells, Beijing Institute of Health and Stem Cells, Health & Biotech Co., Beijing, China
| | - Zuo-Xiang He
- Department of Nuclear Medicine, State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, National Center of Cardiovascular Disease, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Na Liu
- Nankai University School of Medicine, Tianjin, China.
| | - Fengxia Ma
- State Key Lab of Experimental Hematology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
| | - Zongjin Li
- Nankai University School of Medicine, Tianjin, China; State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, The College of Life Science, Tianjin, China.
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Zhang Y, Cai S, Jia Y, Qi C, Sun J, Zhang H, Wang F, Cao Y, Li X. Decoding Noncoding RNAs: Role of MicroRNAs and Long Noncoding RNAs in Ocular Neovascularization. Am J Cancer Res 2017; 7:3155-3167. [PMID: 28839470 PMCID: PMC5566112 DOI: 10.7150/thno.19646] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/15/2017] [Indexed: 12/11/2022] Open
Abstract
Ocular neovascularization is a pathological sequel of multiple eye diseases. Based on the anatomical site into which the abnormal neovessels grow, ocular neovascularization can be categorized into corneal neovascularization, choroidal neovascularization, and retinal neovascularization. Each category is intractable, and may lead to blindness if not appropriately treated. However, the current therapeutic modalities, including laser photocoagulation, vitrectomy surgery, and anti-VEGF drugs, raise concerns due to limited efficacy, damage on retinal parenchyma and vasculature, and the patients' unresponsiveness to the treatments. Therefore, the in-depth study on pathogenesis of and the search for novel therapeutic targets to the ocular neovascularization are needed. During the last 10 years or so, a large number of literatures have emerged indicating a critical role of noncoding RNAs, particularly microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), in the pathogenesis and regulation of the ocular neovascularization. This review summarizes the current understanding of the biosynthesis and functions of the miRNAs and lncRNAs, the regulation of the miRNAs and lncRNAs in neovascular eye diseases, as well as the roles of these noncoding RNAs in the disease models of ocular neovascularization, in the hope that it could provide clues for the pathogenesis of and molecular targets to the ocular neovascularization.
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Ronca R, Benkheil M, Mitola S, Struyf S, Liekens S. Tumor angiogenesis revisited: Regulators and clinical implications. Med Res Rev 2017. [PMID: 28643862 DOI: 10.1002/med.21452] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Since Judah Folkman hypothesized in 1971 that angiogenesis is required for solid tumor growth, numerous studies have been conducted to unravel the angiogenesis process, analyze its role in primary tumor growth, metastasis and angiogenic diseases, and to develop inhibitors of proangiogenic factors. These studies have led in 2004 to the approval of the first antiangiogenic agent (bevacizumab, a humanized antibody targeting vascular endothelial growth factor) for the treatment of patients with metastatic colorectal cancer. This approval launched great expectations for the use of antiangiogenic therapy for malignant diseases. However, these expectations have not been met and, as knowledge of blood vessel formation accumulates, many of the original paradigms no longer hold. Therefore, the regulators and clinical implications of angiogenesis need to be revisited. In this review, we discuss recently identified angiogenesis mediators and pathways, new concepts that have emerged over the past 10 years, tumor resistance and toxicity associated with the use of currently available antiangiogenic treatment and potentially new targets and/or approaches for malignant and nonmalignant neovascular diseases.
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Affiliation(s)
- Roberto Ronca
- Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Mohammed Benkheil
- Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Leuven, Belgium
| | - Stefania Mitola
- Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Sofie Struyf
- Laboratory of Molecular Immunology, Rega Institute for Medical Research, Leuven, Belgium
| | - Sandra Liekens
- Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Leuven, Belgium
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Liu X, Wang S, Wang X, Liang J, Zhang Y. Recent drug therapies for corneal neovascularization. Chem Biol Drug Des 2017; 90:653-664. [PMID: 28489275 DOI: 10.1111/cbdd.13018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/17/2017] [Accepted: 04/25/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Xinyao Liu
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Shurong Wang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Xuanzhong Wang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Jiaming Liang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Yan Zhang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
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