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Edgerton-Fulton M, Abdul Y, Jamil S, Ergul A. Endothelin-1 (ET-1) contributes to senescence and phenotypic changes in brain pericytes in diabetes-mimicking conditions. Clin Sci (Lond) 2024; 138:1009-1022. [PMID: 39106080 DOI: 10.1042/cs20240328] [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: 02/21/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 08/07/2024]
Abstract
Diabetes mediates endothelial dysfunction and increases the risk of Alzheimer's disease and related dementias. Diabetes also dysregulates the ET system. ET-1-mediated constriction of brain microvascular pericytes (BMVPCs) has been shown to contribute to brain hypoperfusion. Cellular senescence, a process that arrests the proliferation of harmful cells and instigates phenotypical changes and proinflammatory responses in endothelial cells that impact their survival and function. Thus, we hypothesized that ET-1 mediates BMVPC senescence and phenotypical changes in diabetes-like conditions. Human BMVPCs were incubated in diabetes-like conditions with or without ET-1 (1 µmol/L) for 3 and 7 days. Hydrogen peroxide (100 µmol/L H2O2) was used as a positive control for senescence and to mimic ischemic conditions. Cells were stained for senescence-associated β-galactosidase or processed for immunoblotting and quantitative real-time PCR analyses. In additional experiments, cells were stimulated with ET-1 in the presence or absence of ETA receptor antagonist BQ-123 (20 μmol/L) or ETB receptor antagonist BQ-788 (20 μmol/L). ET-1 stimulation increased β-galactosidase accumulation which was prevented by BQ-123. ET-1 also increased traditional senescence marker p16 protein and pericyte-specific senescence markers, TGFB1i1, PP1CA, and IGFBP7. Furthermore, ET-1 stimulated contractile protein α-SMA and microglial marker ostepontin in high glucose suggesting a shift toward an ensheathing or microglia-like phenotype. In conclusion, ET-1 triggers senescence, alters ETA and ETB receptors, and causes phenotypical changes in BMVPCs under diabetes-like conditions. These in vitro findings need to be further studied in vivo to establish the role of ETA receptors in the progression of pericyte senescence and phenotypical changes in VCID.
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Affiliation(s)
- Mia Edgerton-Fulton
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
| | - Yasir Abdul
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
| | - Sarah Jamil
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
| | - Adviye Ergul
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
- Ralph H Johnson VA Health Care System, Medical University of South Carolina, Charleston, SC, U.S.A
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2
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Xu H, Yu X, Xie R, Wang Y, Li C. RCOR1 improves neurobehaviors and neuron injury in rat cerebral palsy by Endothelin-1 targeting-induced Akt/GSK-3β pathway upregulation. Brain Dev 2024; 46:93-102. [PMID: 37978036 DOI: 10.1016/j.braindev.2023.11.001] [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] [Received: 05/22/2023] [Revised: 09/27/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND RE1 Silencing Transcription factor (REST) corepressor 1 (RCOR1) has been reported to orchestrate neurogenesis, while its role in cerebral palsy (CP) remains elusive. Besides, RCOR1 can interact with Endothelin-1 (EDN1), and EDN1 expression is related to brain damage. Therefore, this study aimed to explore the effects of RCOR1/EDN1 on brain damage during the progression of CP. METHODS CP rats were established via hypoxia-ischemia insult, and injected with lentivirus-RCOR1, followed by examination of brain pathological conditions. The RCOR1 and EDN1 interaction was recognized using hTFtarget. Healthy rat cortical neuron cells received interference of RCOR1/EDN1 expression, and underwent oxygen-glucose deprivation/reoxygenation (OGD/R) treatment, after which phenotypic and molecular assays were conducted through the biochemical method, qRT-PCR and/or western blot. RESULTS RCOR1 was low-expressed but EDN1 was high-expressed in CP model rats and OGD/R-treated neurons. RCOR1 overexpression ameliorated rat neurobehaviors, alleviated brain pathological conditions, reduced TUNEL-positive cells, decreased the levels of reactive oxygen species (ROS) and malondialdehyde (MDA), increased superoxide dismutase (SOD) level and repressed EDN1 expression in the brains of CP model rats. In neurons, RCOR1 overexpression counteracted OGD/R-induced viability decrease, reduction of the levels of RCOR1, SOD, Bcl-2, caspase-3, p-Akt/Akt and p-GSK-3β/GSK-3β, and elevation of the levels of EDN1, ROS, Bax, and cleaved caspase-3, while EDN1 overexpression did contrarily on these events. Moreover, there was a negative interplay between RCOR1 overexpression and EDN1 overexpression in OGD/R-induced neurons. CONCLUSION RCOR1 ameliorates neurobehaviors and suppresses neuronal apoptosis and oxidative stress in CP through EDN1 targeting-mediated upregulation of Akt/GSK-3β.
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Affiliation(s)
- Hai Xu
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi City, Xinjiang Uygur Autonomous Region 830001, China
| | - Xuetao Yu
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi City, Xinjiang Uygur Autonomous Region 830001, China
| | - Rong Xie
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi City, Xinjiang Uygur Autonomous Region 830001, China
| | - Yangyang Wang
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi City, Xinjiang Uygur Autonomous Region 830001, China
| | - Chunli Li
- Department of Rehabilitation Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Wulumuqi City, Xinjiang Uygur Autonomous Region 830001, China.
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Wu CY, Swardfager W. Phosphodiesterase-5 Inhibitors and Dementia Risk: Confounding by Indication in Real-World Studies. J Alzheimers Dis 2024; 100:1161-1163. [PMID: 38995794 DOI: 10.3233/jad-240520] [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] [Indexed: 07/14/2024]
Abstract
Pharmacoepidemiologic studies using routinely collected data allow researchers to propose drugs for repurposing trials for dementia prevention or treatment. A recent cohort study reported a 54% lower dementia risk among users of sildenafil compared to users of certain cardiovascular medications. We caution that "confounding by indication" can arise when outcomes are compared between a drug of interest and an inappropriate comparator. Here, we emphasize important considerations in selecting an active comparator. We assess the implications of substantial risk of confounding by indication in pharmacoepidemiologic studies linking phosphodiesterase-5 inhibitors to lower dementia risk.
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Affiliation(s)
- Che-Yuan Wu
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Sandra Black Centre for Brain Resilience and Recovery, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Walter Swardfager
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Sandra Black Centre for Brain Resilience and Recovery, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada
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Zhang Y, Xiang J, Tang L, Yang J, Li J. PGAGP: Predicting pathogenic genes based on adaptive network embedding algorithm. Front Genet 2023; 13:1087784. [PMID: 36744177 PMCID: PMC9895109 DOI: 10.3389/fgene.2022.1087784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/09/2022] [Indexed: 01/21/2023] Open
Abstract
The study of disease-gene associations is an important topic in the field of computational biology. The accumulation of massive amounts of biomedical data provides new possibilities for exploring potential relations between diseases and genes through computational strategy, but how to extract valuable information from the data to predict pathogenic genes accurately and rapidly is currently a challenging and meaningful task. Therefore, we present a novel computational method called PGAGP for inferring potential pathogenic genes based on an adaptive network embedding algorithm. The PGAGP algorithm is to first extract initial features of nodes from a heterogeneous network of diseases and genes efficiently and effectively by Gaussian random projection and then optimize the features of nodes by an adaptive refining process. These low-dimensional features are used to improve the disease-gene heterogenous network, and we apply network propagation to the improved heterogenous network to predict pathogenic genes more effectively. By a series of experiments, we study the effect of PGAGP's parameters and integrated strategies on predictive performance and confirm that PGAGP is better than the state-of-the-art algorithms. Case studies show that many of the predicted candidate genes for specific diseases have been implied to be related to these diseases by literature verification and enrichment analysis, which further verifies the effectiveness of PGAGP. Overall, this work provides a useful solution for mining disease-gene heterogeneous network to predict pathogenic genes more effectively.
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Affiliation(s)
- Yan Zhang
- School of Computer Science and Engineering, Central South University, Changsha, China
- School of Information Science and Engineering, Changsha Medical University, Changsha, China
- Academician Workstation, Changsha Medical University, Changsha, China
| | - Ju Xiang
- School of Computer Science and Engineering, Central South University, Changsha, China
- School of Information Science and Engineering, Changsha Medical University, Changsha, China
- Academician Workstation, Changsha Medical University, Changsha, China
- School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha, China
- Department of Basic Medical Sciences and Neuroscience Research Center, Changsha Medical University, Changsha, China
| | - Liang Tang
- Academician Workstation, Changsha Medical University, Changsha, China
- Department of Basic Medical Sciences and Neuroscience Research Center, Changsha Medical University, Changsha, China
| | - Jialiang Yang
- Academician Workstation, Changsha Medical University, Changsha, China
- Qingdao Geneis Institute of Big Data Mining and Precision Medicine, Qingdao, China
- Geneis Beijing Co., Ltd, Beijing, China
| | - Jianming Li
- Academician Workstation, Changsha Medical University, Changsha, China
- Department of Basic Medical Sciences and Neuroscience Research Center, Changsha Medical University, Changsha, China
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Aliabadi P, Sadri M, Siri G, Ebrahimzadeh F, Yazdani Y, Gusarov AM, Kharkouei SA, Asadi F, Adili A, Mardi A, Mohammadi H. Restoration of miR-648 overcomes 5-FU-resistance through targeting ET-1 in gastric cancer cells in-vitro. Pathol Res Pract 2022; 239:154139. [PMID: 36191447 DOI: 10.1016/j.prp.2022.154139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/02/2022] [Accepted: 09/16/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Endothelin-1 (ET-1) is a peptide overexpressed in gastric cancer (GC) and linked to carcinogenesis and resistance to chemotherapy. Applying microRNAs (miRNAs/miRs) to downregulate ET-1 and reverse resistance to commonly used chemotherapy drugs such as 5-fluorouracil (5-FU) is practical. METHODS The current study sought to evaluate the miR-648 expression in GC and any plausibility of its replacement, either with or without the combination of chemo agents to downregulate ET-1 expression through interaction with its target gene. To this end, miR-648 and ET-1 expression levels were assessed in GC tissues and adjacent non-tumor tissues driven from 65 patients who had already undergone surgery, fifteen of which had received 5-FU before surgery. The impact of miR-648 and chemo agents on ET-1 expression was measured using qPCR and Western blotting. Further, an MTT assay was conducted to assess its association with cell viability. Ultimately, the association of miR-648 and ET-1 with clinicopathological characteristics was evaluated. RESULTS The current study revealed that miR-648 was considerably down-regulated, while ET-1 was substantially up-regulated in patients with GC. The 5-FU caused a significant increase in miR-648 and reduced ET-1 expression. It was also determined that overexpression of miR-648 suppressed ET-1 production, notably when combined with 5-FU, leading to survival reduction. These results further showed that miR-648 replacement could sensitize chemoresistant GC cells. Besides, a significant association between ET-1 and miR-648 with clinicopathological features was discovered CONCLUSIONS: miR-648 replacement may serve as a potential oncosuppressive therapeutic approach that warrants further investigation to translate into an effective GC treatment.
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Affiliation(s)
- Parsa Aliabadi
- Department of Immunology and Biology, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Maryam Sadri
- Department of Internal Medicine, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Goli Siri
- Department of Internal Medicine, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Farnoosh Ebrahimzadeh
- Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran
| | - Yalda Yazdani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Artem Maximovich Gusarov
- Department of Maxillofacial Surgery, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Sahar Afzali Kharkouei
- Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Islamic Republic of Iran
| | - Fatemeh Asadi
- Department of Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Islamic Republic of Iran
| | - Ali Adili
- Senior Adult Oncology Department, Moffitt Cancer Center, University of South Florida, Tampa, FL, USA; Department of Oncology, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Amirhossein Mardi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Hamed Mohammadi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Islamic Republic of Iran; Department of Immunology, School of Medicine, Alborz University of Medical Sciences, Karaj, Islamic Republic of Iran.
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Li X, Zhang P, Li H, Yu H, Xi Y. The Protective Effects of Zeaxanthin on Amyloid-β Peptide 1–42-Induced Impairment of Learning and Memory Ability in Rats. Front Behav Neurosci 2022; 16:912896. [PMID: 35813593 PMCID: PMC9262409 DOI: 10.3389/fnbeh.2022.912896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/25/2022] [Indexed: 11/25/2022] Open
Abstract
Background and Objectives Zeaxanthin (ZEA) as one of the biologically active phytochemicals presents a neuroprotective effect. Since ZEA may play its anti-oxidative role in neurodegenerative diseases including Alzheimer’s disease (AD), we hypothesized cognitive defects could be prevented or deferred by ZEA pre-treatment. Methods and Study Design All the rats were randomly divided into four groups (control, Aβ1–42, ZEA, and ZEA + Aβ groups). Learning and memory ability of rats, cerebrovascular ultrastructure changes, the redox state, endothelin-1 (ET-1) level, and amyloid-β peptide (Aβ) level in plasma and the Aβ transport receptors which are advanced glycation end products (RAGEs) and LDL receptor-related protein-1 (LRP-1) and interleukin-1β (IL-1β) expressions in the cerebrovascular tissue were measured in the present study. Results The escape latency and frequency of spanning the position of platform showed significant differences between the Aβ group and ZEA treatment groups. ZEA could prevent the ultrastructure changes of cerebrovascular tissue. In addition, ZEA also showed the protective effects on regulating redox state, restraining ET-1 levels, and maintaining Aβ homeostasis in plasma and cerebrovascular. Moreover, the disordered expressions of RAGE and LRP-1 and IL-1β induced by Aβ1–42 could be prevented by the pre-treatment of ZEA. Conclusion ZEA pre-treatment could prevent learning and memory impairment of rats induced by Aβ1–42. This neuroprotective effect might be attributable to the anti-oxidative and anti-inflammatory effects of ZEA on maintaining the redox state and reducing the Aβ level through regulating the Aβ transport receptors and inflammatory cytokine of the cerebrovascular tissue.
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Affiliation(s)
- Xiaoying Li
- Department of Geriatrics, Beijing Jishuitan Hospital, Beijing, China
| | - Ping Zhang
- Department of Geriatrics, Beijing Jishuitan Hospital, Beijing, China
| | - Hongrui Li
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing, China
| | - Huiyan Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing, China
| | - Yuandi Xi
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, Beijing, China
- *Correspondence: Yuandi Xi,
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Perrone L, Valente M. The Emerging Role of Metabolism in Brain-Heart Axis: New Challenge for the Therapy and Prevention of Alzheimer Disease. May Thioredoxin Interacting Protein (TXNIP) Play a Role? Biomolecules 2021; 11:1652. [PMID: 34827650 PMCID: PMC8616009 DOI: 10.3390/biom11111652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/02/2021] [Accepted: 11/06/2021] [Indexed: 12/15/2022] Open
Abstract
Alzheimer disease (AD) is the most frequent cause of dementia and up to now there is not an effective therapy to cure AD. In addition, AD onset occurs decades before the diagnosis, affecting the possibility to set up appropriate therapeutic strategies. For this reason, it is necessary to investigate the effects of risk factors, such as cardiovascular diseases, in promoting AD. AD shows not only brain dysfunction, but also alterations in peripheral tissues/organs. Indeed, it exists a reciprocal connection between brain and heart, where cardiovascular alterations participate to AD as well as AD seem to promote cardiovascular dysfunction. In addition, metabolic dysfunction promotes both cardiovascular diseases and AD. In this review, we summarize the pathways involved in the regulation of the brain-heart axis and the effect of metabolism on these pathways. We also present the studies showing the role of the gut microbiota on the brain-heart axis. Herein, we propose recent evidences of the function of Thioredoxin Interacting protein (TXNIP) in mediating the role of metabolism on the brain-heart axis. TXNIP is a key regulator of metabolism at both cellular and body level and it exerts also a pathological function in several cardiovascular diseases as well as in AD.
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Affiliation(s)
- Lorena Perrone
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Mariarosaria Valente
- Department of Medicine, University of Udine, 33100 Udine, Italy;
- Clinical Neurology Unit, Department of Neuroscience, Azienda Sanitaria Universitaria Friuli Centrale, University Hospital, 33100 Udine, Italy
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Sharma S, Behl T, Kumar A, Sehgal A, Singh S, Sharma N, Bhatia S, Al-Harrasi A, Bungau S. Targeting Endothelin in Alzheimer's Disease: A Promising Therapeutic Approach. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7396580. [PMID: 34532504 PMCID: PMC8440097 DOI: 10.1155/2021/7396580] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/07/2021] [Indexed: 11/18/2022]
Abstract
Endothelin is a chemical mediator that helps in maintaining balance within the blood-brain barrier by regulating the levels of toxicants and molecules which pass through the brain, suggesting that a rise in its production determines Alzheimer's disease. The inequity in the amyloid β occurs due to a problem in its clearance from the brain initiating the production of reactive oxygen species and superoxide that activates a cascade wherein the release of inflammatory mediators and various enzymes like endothelin-converting enzymes take place. Furthermore, the cascade increases the levels of endothelin in the brain from endothelial cells. Endothelin levels are upregulated, which can be regulated by modulating the action of endothelin-converting enzymes and endothelin receptors. Hence, endothelin paves a pathway in the treatment of Alzheimer's disease. In this article, we have covered various mechanisms and preclinical studies that support and direct endothelin involvement in the progression of Alzheimer's disease by using various search tools such as PubMed, Science Direct, and Medline. Conclusive outcome data were extracted that all together defy contrivance pathways, potential drugs, endothelin receptors, and endothelin enzymes in our article giving profound importance to target endothelin for prevention and treatment of Alzheimer's disease.
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Affiliation(s)
- Shiwali Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Anoop Kumar
- Delhi Pharmaceutical Sciences and Research University, Delhi, India
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
- Amity Institute of Pharmacy, Amity University, Haryana, India
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
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Chen H, Cai B, Liu K, Hua Q. miR‑27a‑3p regulates the inhibitory influence of endothelin 3 on the tumorigenesis of papillary thyroid cancer cells. Mol Med Rep 2021; 23:243. [PMID: 33537832 PMCID: PMC7893708 DOI: 10.3892/mmr.2021.11882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 01/04/2021] [Indexed: 11/27/2022] Open
Abstract
Several studies on papillary thyroid cancer (PTC) have been performed. However, the effects of endothelin 3 (EDN3) and microRNA (miR)-27a-3p on PTC cells has yet to be investigated, to the best of the authors' knowledge. The present study aimed to explore the biological functions of EDN3 and miR-27a-3p in PTC cells. Bioinformatics analysis was conducted to identify possible key genes and miRs involved in PTC progression. Western blot analysis and reverse transcription-quantitative (RT-q) PCR were employed to confirm the key genes or miRs expressed in PTC cells. Cytological methods were used to detect cell viability, proliferation, apoptosis and migration and luciferase reporter assay was performed to confirm the relationship between END3 and miR-27a-3p. After analyzing the results of gene microarray analyses and RT-qPCR, EDN3 with low expression was identified as the key gene associated with PTC progression. It was also found that EDN3 overexpression in PTC cells impaired cell viability, proliferation and migration but promoted cell apoptosis. In addition, the findings revealed that miR-27a-3p could relieve the inhibitory influence of EDN3 on PTC cells by binding to EDN3 mRNA 3′ untranslated region (UTR), thereby suppressing EDN3 expression. Overall, the results of the present study demonstrated that by binding to EDN3 mRNA 3′UTR, miR-27a-3p could attenuate the inhibitory function of EDN3 in the tumorigenesis of PTC cells.
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Affiliation(s)
- Hongxin Chen
- Department of Otorhinolaryngology‑Head and Neck Surgery, Wuhan Puren Hospital, Wuhan, Hubei 430081, P.R. China
| | - Binlin Cai
- Department of Otorhinolaryngology‑Head and Neck Surgery, Wuhan Puren Hospital, Wuhan, Hubei 430081, P.R. China
| | - Kun Liu
- Department of Otorhinolaryngology‑Head and Neck Surgery, Wuhan Puren Hospital, Wuhan, Hubei 430081, P.R. China
| | - Qingquan Hua
- Department of Otorhinolaryngology‑Head and Neck Surgery, Wuhan University Renmin Hospital, Wuhan, Hubei 430060, P.R. China
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Li MN, Yu HP, Ke QF, Zhang CQ, Gao YS, Guo YP. Gelatin methacryloyl hydrogels functionalized with endothelin-1 for angiogenesis and full-thickness wound healing. J Mater Chem B 2021; 9:4700-4709. [PMID: 34076027 DOI: 10.1039/d1tb00449b] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Natural polymer hydrogels are widely used as wound dressings, but they do not have enough bioactivity to accelerate angiogenesis and re-epithelialization. Herein, a therapeutic system was firstly constructed in which endothelin-1 (ET-1), as an endogenous vasoconstrictor peptide, was embedded in a photo-crosslinking gelatin methacryloyl (GelMA) hydrogel for full-thickness wound healing. The multifunctional GelMA-ET-1 hydrogels contained the arginine-glycine-aspartate (RGD) motifs of gelatin that provided adhesive sites for cell proliferation and migration. The ET-1 was wrapped within the network of crosslinked GelMA hydrogels via intermolecular hydrogen bonding interactions, effectively avoiding oxidization by atmospheric oxygen and in vivo enzymatic biodegradation. Notably, the ET-1 in the functional hydrogels significantly promoted the proliferation, migration and angiogenesis-related gene expression of human umbilical vein endothelial cells (HUVECs) and fibroblasts. The full-thickness skin defect model of rats further revealed that the GelMA-ET-1 hydrogels significantly accelerated new blood vessel formation, collagen deposition and re-epithelialization. After 14 days, the full-thickness skin defects almost closed and were filled with the newly formed tissue. Hence, the photo-crosslinking GelMA-ET-1 hydrogels functionalized with ET-1 can be employed as a promising therapeutic system for wound healing.
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Affiliation(s)
- Meng-Na Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
| | - Hong-Ping Yu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China. and The First Affiliated Hospital of Xiamen University, Xiamen 361005, China
| | - Qin-Fei Ke
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
| | - Chang-Qing Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
| | - You-Shui Gao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
| | - Ya-Ping Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
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