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Mahajan N, Luo Q, Abhyankar S, Bhatwadekar AD. Transcriptomic Profile of Lin -Sca1 +c-kit (LSK) cells in db/db mice with long-standing diabetes. BMC Genomics 2024; 25:782. [PMID: 39134978 PMCID: PMC11318115 DOI: 10.1186/s12864-024-10679-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 08/01/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND The Lin-Sca1+c-Kit+ (LSK) fraction of the bone marrow (BM) comprises multipotent hematopoietic stem cells (HSCs), which are vital to tissue homeostasis and vascular repair. While diabetes affects HSC homeostasis overall, the molecular signature of mRNA and miRNA transcriptomic under the conditions of long-standing type 2 diabetes (T2D;>6 months) remains unexplored. METHODS In this study, we assessed the transcriptomic signature of HSCs in db/db mice, a well-known and widely used model for T2D. LSK cells of db/db mice enriched using a cell sorter were subjected to paired-end mRNA and single-end miRNA seq library and sequenced on Illumina NovaSeq 6000. The mRNA sequence reads were mapped using STAR (Spliced Transcripts Alignment to a Reference), and the miRNA sequence reads were mapped to the designated reference genome using the Qiagen GeneGlobe RNA-seq Analysis Portal with default parameters for miRNA. RESULTS We uncovered 2076 out of 13,708 mRNAs and 35 out of 191 miRNAs that were expressed significantly in db/db animals; strikingly, previously unreported miRNAs (miR-3968 and miR-1971) were found to be downregulated in db/db mice. Furthermore, we observed a molecular shift in the transcriptome of HSCs of diabetes with an increase in pro-inflammatory cytokines (Il4, Tlr4, and Tnf11α) and a decrease in anti-inflammatory cytokine IL10. Pathway mapping demonstrated inflammation mediated by chemokine, cytokine, and angiogenesis as one of the top pathways with a significantly higher number of transcripts in db/db mice. These molecular changes were reflected in an overt defect in LSK mobility in the bone marrow. miRNA downstream target analysis unveils several mRNAs targeting leukocyte migration, microglia activation, phagosome formation, and macrophage activation signaling as their primary pathways, suggesting a shift to an inflammatory phenotype. CONCLUSION Our findings highlight that chronic diabetes adversely alters HSCs' homeostasis at the transcriptional level, thus potentially contributing to the inflammatory phenotype of HSCs under long-term diabetes. We also believe that identifying HSCs-based biomarkers in miRNAs or mRNAs could serve as diagnostic markers and potential therapeutic targets for diabetes and associated vascular complications.
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Affiliation(s)
- Neha Mahajan
- Department of Ophthalmology, Indiana University School of Medicine, 1160 W Michigan St, Indianapolis, IN, 46202, USA
| | - Qianyi Luo
- Department of Ophthalmology, Indiana University School of Medicine, 1160 W Michigan St, Indianapolis, IN, 46202, USA
| | - Surabhi Abhyankar
- Department of Ophthalmology, Indiana University School of Medicine, 1160 W Michigan St, Indianapolis, IN, 46202, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, 46202, USA
| | - Ashay D Bhatwadekar
- Department of Ophthalmology, Indiana University School of Medicine, 1160 W Michigan St, Indianapolis, IN, 46202, USA.
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Mahajan N, Luo Q, Abhyankar S, Bhatwadekar AD. Transcriptomic Profile of Lin - Sca1 + c-kit (LSK) cells in db/db mice with long-standing diabetes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.22.576754. [PMID: 38328165 PMCID: PMC10849703 DOI: 10.1101/2024.01.22.576754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The Lin - Sca1 + c-Kit + (LSK) fraction comprises multipotent hematopoietic stem cells (HSCs), vital to tissue homeostasis and vascular repair. While HSC homeostasis is impaired in diabetes, it is not known how chronic (>6 months) type 2 diabetes (T2D) alters the HSC transcriptome. Herein, we assessed the transcriptomic signature of HSCs in db/db mice employing mRNA and miRNA sequencing. We uncovered 2076 mRNAs and 35 miRNAs differentially expressed in db/db mice, including two novel miRNAs previously unreported in T2D. Further analysis of these transcripts showed a molecular shift with an increase in the pro-inflammatory cytokines and a decrease in anti-inflammatory cytokine expression. Also, pathway mapping unveiled inflammation and angiogenesis as one of the top pathways. These effects were reflected in bone marrow mobilopathy, retinal microglial inflammation, and neurovascular deficits in db/db mice. In conclusion, our study highlights that chronic diabetes alters HSCs' at the transcriptomic level, thus potentially contributing to overall homeostasis and neurovascular deficits of diabetes, such as diabetic retinopathy. Highlights Bone marrow mobilopathy with long-standing diabetesSwitch in LSK transcriptomic profile towards inflammation and angiogenesisDiscovered 35 miRNAs, including two novel miRNAs, miR-3968 and miR-1971LSK dysfunction reflected in inflammation and neurovascular deficits of the retina.
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Ejaz M, Usman SM, Amir S, Khan MJ. Holistic expression of miR-17-92 cluster in obesity, kidney diseases, cardiovascular diseases, and diabetes. Mol Biol Rep 2023; 50:6913-6925. [PMID: 37329480 DOI: 10.1007/s11033-023-08549-4] [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: 04/09/2023] [Accepted: 05/24/2023] [Indexed: 06/19/2023]
Abstract
miR-17-92 cluster encodes six micro RNAs (miRNAs) and plays a crucial role in the regulation of various cellular processes. Aberrant expression of this cluster may result in the onset of several diseases. Initially, the role of miR-17-92 cluster in tumorigenesis was discovered but recent research has also uncovered its role in other diseases. Members of the cluster may serve as potential biomarkers in the prognosis, diagnosis, and treatment of several diseases and their complications. In this article, we have reviewed the recent research carried out on the expression pattern of miR-17-92 cluster in non-communicable diseases i.e., obesity, cardiovascular diseases (CVD), kidney diseases (KD) and diabetes mellitus (DM). We examined miR-17-92 role in pathological processes and their potential importance as biomarkers. Each member of the cluster miR-17-92 was upregulated in obesity. miR-18a, miR-19b-3p, miR20a, and miR92a were significantly upregulated in CVD. An equal fraction of the cluster was dysregulated (upregulated and downregulated) in diabetes; however, miR-17-92 was downregulated in most studies on CKD.
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Affiliation(s)
- Maheen Ejaz
- Department of Biosciences, COMSATS University Islamabad, Park Road, Chak Shahzad Islamabad, Islamabad, 45550, Pakistan
| | - Syed Mohammad Usman
- Department of Biochemistry, McMaster University, Hamilton, ON, L8S 4L8, Canada
| | - Saira Amir
- Department of Biosciences, COMSATS University Islamabad, Park Road, Chak Shahzad Islamabad, Islamabad, 45550, Pakistan
| | - Muhammad Jawad Khan
- Department of Biosciences, COMSATS University Islamabad, Park Road, Chak Shahzad Islamabad, Islamabad, 45550, Pakistan.
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Spinetti G, Mutoli M, Greco S, Riccio F, Ben-Aicha S, Kenneweg F, Jusic A, de Gonzalo-Calvo D, Nossent AY, Novella S, Kararigas G, Thum T, Emanueli C, Devaux Y, Martelli F. Cardiovascular complications of diabetes: role of non-coding RNAs in the crosstalk between immune and cardiovascular systems. Cardiovasc Diabetol 2023; 22:122. [PMID: 37226245 PMCID: PMC10206598 DOI: 10.1186/s12933-023-01842-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/25/2023] [Indexed: 05/26/2023] Open
Abstract
Diabetes mellitus, a group of metabolic disorders characterized by high levels of blood glucose caused by insulin defect or impairment, is a major risk factor for cardiovascular diseases and related mortality. Patients with diabetes experience a state of chronic or intermittent hyperglycemia resulting in damage to the vasculature, leading to micro- and macro-vascular diseases. These conditions are associated with low-grade chronic inflammation and accelerated atherosclerosis. Several classes of leukocytes have been implicated in diabetic cardiovascular impairment. Although the molecular pathways through which diabetes elicits an inflammatory response have attracted significant attention, how they contribute to altering cardiovascular homeostasis is still incompletely understood. In this respect, non-coding RNAs (ncRNAs) are a still largely under-investigated class of transcripts that may play a fundamental role. This review article gathers the current knowledge on the function of ncRNAs in the crosstalk between immune and cardiovascular cells in the context of diabetic complications, highlighting the influence of biological sex in such mechanisms and exploring the potential role of ncRNAs as biomarkers and targets for treatments. The discussion closes by offering an overview of the ncRNAs involved in the increased cardiovascular risk suffered by patients with diabetes facing Sars-CoV-2 infection.
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Affiliation(s)
- Gaia Spinetti
- Laboratory of Cardiovascular Pathophysiology and Regenerative Medicine, IRCCS MultiMedica, Milan, Italy.
| | - Martina Mutoli
- Laboratory of Cardiovascular Pathophysiology and Regenerative Medicine, IRCCS MultiMedica, Milan, Italy
| | - Simona Greco
- Molecular Cardiology Laboratory, IRCCS Policlinico San Donato, Milan, Italy
| | - Federica Riccio
- Laboratory of Cardiovascular Pathophysiology and Regenerative Medicine, IRCCS MultiMedica, Milan, Italy
| | - Soumaya Ben-Aicha
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Franziska Kenneweg
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | | | - David de Gonzalo-Calvo
- Translational Research in Respiratory Medicine, University Hospital Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain
- CIBER of Respiratory Diseases (CIBERES), Institute of Health Carlos III, Madrid, Spain
| | - Anne Yaël Nossent
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - Susana Novella
- Department of Physiology, University of Valencia - INCLIVA Biomedical Research Institute, Valencia, Spain
| | - Georgios Kararigas
- Department of Physiology, Faculty of Medicine, University of Iceland, Reykjavík, Iceland
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Costanza Emanueli
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Yvan Devaux
- Cardiovascular Research Unit, Department of Precision Health, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS Policlinico San Donato, Milan, Italy.
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Kim JY, Kim W, Lee KH. The role of microRNAs in the molecular link between circadian rhythm and autism spectrum disorder. Anim Cells Syst (Seoul) 2023; 27:38-52. [PMID: 36860270 PMCID: PMC9970207 DOI: 10.1080/19768354.2023.2180535] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
Circadian rhythm regulates physiological cycles of awareness and sleepiness. Melatonin production is primarily regulated by circadian regulation of gene expression and is involved in sleep homeostasis. If the circadian rhythm is abnormal, sleep disorders, such as insomnia and several other diseases, can occur. The term 'autism spectrum disorder (ASD)' is used to characterize people who exhibit a certain set of repetitive behaviors, severely constrained interests, social deficits, and/or sensory behaviors that start very early in life. Because many patients with ASD suffer from sleep disorders, sleep disorders and melatonin dysregulation are attracting attention for their potential roles in ASD. ASD is caused by abnormalities during the neurodevelopmental processes owing to various genetic or environmental factors. Recently, the role of microRNAs (miRNAs) in circadian rhythm and ASD have gained attraction. We hypothesized that the relationship between circadian rhythm and ASD could be explained by miRNAs that can regulate or be regulated by either or both. In this study, we introduced a possible molecular link between circadian rhythm and ASD. We performed a thorough literature review to understand their complexity.
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Affiliation(s)
- Ji Young Kim
- Department of Molecular Biology, Pusan National University, Busan, Republic of Korea
| | - Wanil Kim
- Department of Biochemistry, College of Medicine, Gyeongsang National University, Jinju-si, Republic of Korea, Wanil Kim Department of Biochemistry, College of Medicine, Gyeongsang National University, Jinju-si, Gyeongsangnam-do52727, Republic of Korea; Kyung-Ha Lee Department of Molecular Biology, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan46241, Republic of Korea
| | - Kyung-Ha Lee
- Department of Molecular Biology, Pusan National University, Busan, Republic of Korea, Wanil Kim Department of Biochemistry, College of Medicine, Gyeongsang National University, Jinju-si, Gyeongsangnam-do52727, Republic of Korea; Kyung-Ha Lee Department of Molecular Biology, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan46241, Republic of Korea
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6
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Luo Q, Hajrasouliha AR, Bhatwadekar AD. miR-92a and integrin expression in fibrovascular membranes in proliferative diabetic retinopathy. FRONTIERS IN OPHTHALMOLOGY 2023; 3:1116838. [PMID: 37426784 PMCID: PMC10327885 DOI: 10.3389/fopht.2023.1116838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Diabetic retinopathy (DR) is a leading cause of vision impairment. The proliferative form of DR (PDR) involves fibrovascular membrane (FVM) formation at the vitreoretinal interface. MicroRNAs (miRNAs) are a class of non-coding RNA molecules that play an important role in gene regulation; a single miRNA could regulate multiple genes. We previously reported that miR-92a, a suppressor of integrins α5 and αv, was downregulated in DR. Considering the integrin's role in FVM pathology and the potential involvement of miR-92a in DR, we asked a question whether miR-92a could play a critical role in FVM pathology. We collected the FVM and epiretinal membranes of individuals with PDR and macular pucker (control) undergoing pars plana vitrectomy. The frozen sections of membranes were stained for α5 and αvβ3 integrins. The miR-92a levels were assessed using real-time quantitative PCR. The FVMs of individuals with PDR stained brighter for integrin subunits α5 and αvβ3 compared to the epiretinal membranes of subjects with macular pucker. miR-92a levels were decreased in FVM subjects. In conclusion, our studies demonstrate that miR-92a decrease is associated with an increase in integrins α5 and αvβ3, thus contributing to the inflammatory milieu in PDR.
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Hao Y, Xue T, Liu S, Geng S, Shi X, Qian P, He W, Zheng J, Li Y, Lou J, Shi T, Wang G, Wang X, Wang Y, Li Y, Song Y. Loss of CRY2 promotes regenerative myogenesis by enhancing PAX7 expression and satellite cell proliferation. MedComm (Beijing) 2023; 4:e202. [PMID: 36636367 PMCID: PMC9830134 DOI: 10.1002/mco2.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 01/11/2023] Open
Abstract
The regenerative capacity of skeletal muscle is dependent on satellite cells. The circadian clock regulates the maintenance and function of satellite cells. Cryptochrome 2 (CRY2) is a critical component of the circadian clock, and its role in skeletal muscle regeneration remains controversial. Using the skeletal muscle lineage and satellite cell-specific CRY2 knockout mice (CRY2scko), we show that the deletion of CRY2 enhances muscle regeneration. Single myofiber analysis revealed that deletion of CRY2 stimulates the proliferation of myoblasts. The differentiation potential of myoblasts was enhanced by the loss of CRY2 evidenced by increased expression of myosin heavy chain (MyHC) and myotube formation in CRY2-/- cells versus CRY2+/+ cells. Immunostaining revealed that the number of mononucleated paired box protein 7 (PAX7+) cells associated with myotubes formed by CRY2-/- cells was increased compared with CRY2+/+ cells, suggesting that more reserve cells were produced in the absence of CRY2. Loss of CRY2 leads to the activation of the ERK1/2 signaling pathway and ETS1, which binds to the promoter of PAX7 to induce its transcription. CRY2 deficient myoblasts survived better in ischemic muscle. Therefore, CRY2 is essential in regulating skeletal muscle repair.
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Affiliation(s)
- Yingxue Hao
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Ting Xue
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Song‐Bai Liu
- Suzhou Vocational Health College, Suzhou Key Laboratory of Biotechnology for Laboratory MedicineSuzhouJiangsuP. R. China
| | - Sha Geng
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Xinghong Shi
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Panting Qian
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Wei He
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Jiqing Zheng
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Yanfang Li
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Jing Lou
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Tianze Shi
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Ge Wang
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
| | - Xiaoxiao Wang
- Suzhou Vocational Health College, Suzhou Key Laboratory of Biotechnology for Laboratory MedicineSuzhouJiangsuP. R. China
| | - Yanli Wang
- Institutefor Cardiovascular Science and Department of Cardiovascular SurgeryFirst Affiliated Hospital and Medical College of Soochow UniversitySuzhouJiangsuP. R. China
- Collaborative Innovation Center of HematologySoochow UniversitySuzhouJiangsuP. R. China
| | - Yangxin Li
- Institutefor Cardiovascular Science and Department of Cardiovascular SurgeryFirst Affiliated Hospital and Medical College of Soochow UniversitySuzhouJiangsuP. R. China
- Collaborative Innovation Center of HematologySoochow UniversitySuzhouJiangsuP. R. China
| | - Yao‐Hua Song
- Cyrus Tang Hematology CenterCollaborative Innovation Center of HematologySoochow UniversitySuzhouP. R. China
- National Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouP. R. China
- State Key Laboratory of Radiation Medicine and ProtectionSoochow UniversitySuzhouP. R. China
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Jenkins AJ, Grant MB, Busik JV. Lipids, hyperreflective crystalline deposits and diabetic retinopathy: potential systemic and retinal-specific effect of lipid-lowering therapies. Diabetologia 2022; 65:587-603. [PMID: 35149880 PMCID: PMC9377536 DOI: 10.1007/s00125-022-05655-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022]
Abstract
The metabolically active retina obtains essential lipids by endogenous biosynthesis and from the systemic circulation. Clinical studies provide limited and sometimes conflicting evidence as to the relationships between circulating lipid levels and the development and progression of diabetic retinopathy in people with diabetes. Cardiovascular-system-focused clinical trials that also evaluated some retinal outcomes demonstrate the potential protective power of lipid-lowering therapies in diabetic retinopathy and some trials with ocular primary endpoints are in progress. Although triacylglycerol-lowering therapies with fibrates afforded some protection against diabetic retinopathy, the effect was independent of changes in traditional blood lipid classes. While systemic LDL-cholesterol lowering with statins did not afford protection against diabetic retinopathy in most clinical trials, and none of the trials focused on retinopathy as the main outcome, data from very large database studies suggest the possible effectiveness of statins. Potential challenges in these studies are discussed, including lipid-independent effects of fibrates and statins, modified lipoproteins and retinal-specific effects of lipid-lowering drugs. Dysregulation of retinal-specific cholesterol metabolism leading to retinal cholesterol accumulation and potential formation of cholesterol crystals are also addressed.
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Affiliation(s)
- Alicia J Jenkins
- NHMRC Clinical Trials Centre, The University of Sydney, Sydney, NSW, Australia
| | - Maria B Grant
- Department of Ophthalmology and Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Julia V Busik
- Department of Physiology, Michigan State University, East Lansing, MI, USA.
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Luo Q, Bhamidipalli SS, Eckert GJ, Bhatwadekar AD. Hypermethylation of miRNA-17-92 cluster in peripheral blood mononuclear cells in diabetic retinopathy. Diabetes Metab Syndr 2022; 16:102390. [PMID: 35063745 PMCID: PMC8920756 DOI: 10.1016/j.dsx.2022.102390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND AIMS Diabetic retinopathy (DR) is the most common complication of diabetes. The inflammatory milieu of diabetes results in changes throughout the body. This study asked whether epigenetic changes in peripheral blood mononuclear cells (PBMCs) reflect DR severity. METHODS PBMCs were separated from the whole blood of DR individuals using density gradient centrifugation. DNA was isolated, and methylation of micro-RNA (miR)-17-92 cluster was evaluated. RESULTS We observed that the miR-17-92 cluster was hypermethylated in DR individuals; specifically, this change was most remarkable with proliferative-DR (PDR). CONCLUSIONS miR-17-92 methylation in PBMCs could help understand DR's pathogenesis and identify individuals at the risk of severe DR for early intervention.
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Affiliation(s)
- Qianyi Luo
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute. Indiana University, Indianapolis, IN, 46202, USA
| | | | - George J Eckert
- Department of Biostatistics & Health Data Science, Indiana University, Indianapolis, IN, 46202, USA
| | - Ashay D Bhatwadekar
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute. Indiana University, Indianapolis, IN, 46202, USA.
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Green CE, Clarke J, Bicknell R, Turner AM. Pulmonary MicroRNA Changes Alter Angiogenesis in Chronic Obstructive Pulmonary Disease and Lung Cancer. Biomedicines 2021; 9:830. [PMID: 34356894 PMCID: PMC8301412 DOI: 10.3390/biomedicines9070830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022] Open
Abstract
The pulmonary endothelium is dysfunctional in chronic obstructive pulmonary disease (COPD), a known risk factor for lung cancer. The pulmonary endothelium is altered in emphysema, which is disproportionately affected by cancers. Gene and microRNA expression differs between COPD and non-COPD lung. We hypothesised that the alteration in microRNA expression in the pulmonary endothelium contributes to its dysfunction. A total of 28 patients undergoing pulmonary resection were recruited and endothelial cells were isolated from healthy lung and tumour. MicroRNA expression was compared between COPD and non-COPD patients. Positive findings were confirmed by quantitative polymerase chain reaction (qPCR). Assays assessing angiogenesis and cellular migration were conducted in Human Umbilical Vein Endothelial Cells (n = 3-4) transfected with microRNA mimics and compared to cells transfected with negative control RNA. Expression of miR-181b-3p, miR-429 and miR-23c (all p < 0.05) was increased in COPD. Over-expression of miR-181b-3p was associated with reduced endothelial sprouting (p < 0.05). miR-429 was overexpressed in lung cancer as well and exhibited a reduction in tubular formation. MicroRNA-driven changes in the pulmonary endothelium thus represent a novel mechanism driving emphysema. These processes warrant further study to determine if they may be therapeutic targets in COPD and lung cancer.
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Affiliation(s)
- Clara E. Green
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Joseph Clarke
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (J.C.); (R.B.)
| | - Roy Bicknell
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (J.C.); (R.B.)
| | - Alice M. Turner
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
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11
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Wang H. MicroRNAs, Parkinson's Disease, and Diabetes Mellitus. Int J Mol Sci 2021; 22:ijms22062953. [PMID: 33799467 PMCID: PMC8001823 DOI: 10.3390/ijms22062953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder that affects 1% of the population over the age of 60. Diabetes Mellitus (DM) is a metabolic disorder that affects approximately 25% of adults over the age of 60. Recent studies showed that DM increases the risk of developing PD. The link between DM and PD has been discussed in the literature in relation to different mechanisms including mitochondrial dysfunction, oxidative stress, and protein aggregation. In this paper, we review the common microRNA (miRNA) biomarkers of both diseases. miRNAs play an important role in cell differentiation, development, the regulation of the cell cycle, and apoptosis. They are also involved in the pathology of many diseases. miRNAs can mediate the insulin pathway and glucose absorption. miRNAs can also regulate PD-related genes. Therefore, exploring the common miRNA biomarkers of both PD and DM can shed a light on how these two diseases are correlated, and targeting miRNAs is a potential therapeutic opportunity for both diseases.
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Affiliation(s)
- Hsiuying Wang
- Institute of Statistics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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12
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Abstract
INTRODUCTION In the retina, noncoding RNA (ncRNA) plays an integral role in regulating apoptosis, inflammatory responses, visual perception, and photo-transduction, with altered levels reported in diseased states. AREAS COVERED MicroRNA (miRNA), a class of ncRNA, regulates post-transcription gene expression through the binding of complementary sites of target messenger RNA (mRNA) with resulting translational repression. Small-interfering RNA (siRNA) is a double-stranded RNA (dsRNA) that regulates gene expression, leading to selective silencing of genes through a process called RNA interference (RNAi). Another form of RNAi involves short hairpin RNA (shRNA). In age-related macular degeneration (AMD) and diabetic retinopathy (DR), miRNA has been implicated in the regulation of angiogenesis, oxidative stress, immune response, and inflammation. EXPERT OPINION Many RNA-based therapies in development are conveniently administered intravitreally, with the potential for pan-retinal effect. The majority of these RNA therapeutics are synthetic ncRNA's and hold promise for the treatment of AMD, DR, and inherited retinal diseases (IRDs). These RNA-based therapies include siRNA therapy with its high specificity, shRNA to 'knock down' autosomal dominant toxic gain of function-mutated genes, antisense oligonucleotides (ASOs), which can restore splicing defects, and translational read-through inducing drugs (TRIDs) to increase expression of full-length protein from genes with premature stop codons.
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Affiliation(s)
- Michael C Gemayel
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Indiana University, Indianapolis, IN, USA
| | - Ashay D Bhatwadekar
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Indiana University, Indianapolis, IN, USA
| | - Thomas Ciulla
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Indiana University, Indianapolis, IN, USA.,Preclinical and Clinical Development, Clearside Biomedical, Inc, Alpharetta, GA, USA.,Midwest Eye Institute, Indianapolis, IN, USA
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13
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Fachim HA, Loureiro CM, Siddals K, Dalton CF, Reynolds GP, Gibson JM, Chen ZB, Heald AH. Circulating microRNA changes in patients with impaired glucose regulation. Adipocyte 2020; 9:443-453. [PMID: 32752917 PMCID: PMC7469475 DOI: 10.1080/21623945.2020.1798632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
We analysed if levels of four miRNAs would change after a lifestyle intervention involving dietary and exercises in prediabetes. MiRNAs previously shown to be associated with diabetes (Let-7a, Let-7e, miR-144 and miR-92a) were extracted from serum pre- and post-intervention. mRNA was extracted from fat-tissue for gene expression analyses. The intervention resulted in increased Let-7a and miR-92a. We found correlations between miRNAs and clinical variables (triglycerides, cholesterol, insulin, weight and BMI). We also found correlations between miRNAs and target genes, revealing a link between miR-92a and IGF system. A lifestyle intervention resulted in marked changes in miRNAs. The association of miRNAs with insulin and the IGF system (both receptors and binding proteins) may represent a mechanism of regulating IGFs metabolic actions.
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Affiliation(s)
- Helene A. Fachim
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Camila M. Loureiro
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Kirk Siddals
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Caroline F Dalton
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Gavin P. Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - J. Martin Gibson
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Zhen Bouman Chen
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, Duarte, CA, USA
| | - Adrian H. Heald
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
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14
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Wang H. MicroRNA, Diabetes Mellitus and Colorectal Cancer. Biomedicines 2020; 8:biomedicines8120530. [PMID: 33255227 PMCID: PMC7760221 DOI: 10.3390/biomedicines8120530] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 12/11/2022] Open
Abstract
Diabetes mellitus (DM) is an endocrinological disorder that is due to either the pancreas not producing enough insulin, or the body does not respond appropriately to insulin. There are many complications of DM such as retinopathy, nephropathy, and peripheral neuropathy. In addition to these complications, DM was reported to be associated with different cancers. In this review, we discuss the association between DM and colorectal cancer (CRC). CRC is the third most commonly diagnosed cancer worldwide that mostly affects older people, however, its incidence and mortality are rising among young people. We discuss the relationship between DM and CRC based on their common microRNA (miRNA) biomarkers. miRNAs are non-coding RNAs playing important functions in cell differentiation, development, regulation of cell cycle, and apoptosis. miRNAs can inhibit cell proliferation and induce apoptosis in CRC cells. miRNAs also can improve glucose tolerance and insulin sensitivity. Therefore, investigating the common miRNA biomarkers of both DM and CRC can shed a light on how these two diseases are correlated and more understanding of the link between these two diseases can help the prevention of both DM and CRC.
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Affiliation(s)
- Hsiuying Wang
- Institute of Statistics, National Chiao Tung University, Hsinchu 30010, Taiwan
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15
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Ji H, Yi Q, Chen L, Wong L, Liu Y, Xu G, Zhao J, Huang T, Li B, Yang Y, Li W, Han L, Duan S. Circulating miR-3197 and miR-2116-5p as novel biomarkers for diabetic retinopathy. Clin Chim Acta 2019; 501:147-153. [PMID: 31678272 DOI: 10.1016/j.cca.2019.10.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 10/21/2019] [Accepted: 10/24/2019] [Indexed: 12/13/2022]
Abstract
Diabetic retinopathy (DR) is the leading cause of vision loss among older adults. The goal of this case-control study was to identify circulating miRNAs for the diagnosis of DR. The miRNeasy Serum/Plasma Kit was used to extract serum miRNAs. The μParaflo™ MicroRNA microarray was used to detect the expression levels of the miRNAs. The miRWalk algorithm was applied to predict the target genes of the miRNAs, which were further confirmed by the dual luciferase reporter gene system in HEK293T cells. A microarray was performed between 5 DR cases and 5 age-, sex-, body mass index-, and duration of diabetes-matched type 2 diabetic (T2DM) controls. The quantitative reverse transcription polymerase chain reaction technique was used to validate the differentially expressed circulating miRNAs in 45 DR cases and 45 well-matched controls. Receiver operating characteristic (ROC) curve analysis was used to evaluate the performance of the circulating miRNAs as diagnostic biomarkers for DR. Our microarray analysis screened out miR-2116-5p and miR-3197 as significantly up-regulated in DR cases compared with the controls. Furthermore, two miRNAs were validated in the 45 DR cases and 45 controls. The ROC analysis suggested that both miR-3197 and miR-2116-5p distinguished DR cases from controls. An additional dual-luciferase reporter gene assay confirmed that notch homolog 2 (NOTCH2) was the target gene of miR-2116-5p. Both miR-3197 and miR-2116-5p were identified as promising diagnostic biomarkers for DR. Future research is still needed to explore the molecular mechanisms of miR-3197 and miR-2116-5p in the pathogenesis of DR.
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Affiliation(s)
- Huihui Ji
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China; Departmant of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Quanyong Yi
- Ningbo Eye Hospital, Minan Road 855, Ningbo, Zhejiang, China
| | - Lishuang Chen
- Ningbo Eye Hospital, Minan Road 855, Ningbo, Zhejiang, China
| | - Liping Wong
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yanfen Liu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Guodong Xu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Jun Zhao
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Tianyi Huang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Bin Li
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Yong Yang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Wenxia Li
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Liyuan Han
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China.
| | - Shiwei Duan
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China.
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16
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Huang HT, Liu ZC, Wu KQ, Gu SR, Lu TC, Zhong CJ, Zhou YX. MiR-92a regulates endothelial progenitor cells (EPCs) by targeting GDF11 via activate SMAD2/3/FAK/Akt/eNOS pathway. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:563. [PMID: 31807544 DOI: 10.21037/atm.2019.09.35] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background The effects of miR-92a on EPCs are still poorly elucidated. This study aimed to investigate the effects of miR-92a on EPCs (Endothelial progenitor cells) in a model of hypoxia (HO) or high glucose (HG)-induced EPCs injury by targeting GDF11 (Differentiation growth factor 11). Methods The effects of miR-92a on EPCs subjected to HO or HG were investigated firstly. Subsequently, the action mechanism of miR-92a on EPCs by targeting GDF11 was elucidated. Proliferation, apoptosis, migration, angiogenesis was measured with MTT, flow cytometry, transwell, tube formation respectively. After 24 h, levels of reactive oxygen species (ROS) were measured by fluorescence intensity. LDH and NO (nitric oxide) levels were determined by ELISA. The expression of FLK-1 (fetal liver kinase 1) and vWF (von Willebrand factor) was detected by immunofluorescence. mRNA and protein expression levels were examined using PCR and western blotting respectively. The interaction between miR-92a and GDF11 was evaluated by dual-luciferase reporter assay. Results Our results showed that HO or HG increased apoptosis, production of LDH and generation of ROS, but decreased the ability of migration and tube formation and generation of NO in EPCs; inhibiting of miR-92a decreased HO or HG-induced injury of EPCs, whereas miR-92a over-expression had the opposite effect; the protective effects induced by inhibiting of miR-92a on EPCs could be reversed by GDF11 siRNA and the harmful effects induced by over-expression of miR-92a could be rescued by over-expression of GDF11, which showed that the harmful effects of miR-92a be related to its inhibition of GDF11 and subsequent inactivation of the SMAD2/3/FAK/Akt/eNOS signaling pathway. Conclusions Inhibiting miR-92a can protect EPCs from HO or HG-induced injury. The effect of miR-92a on EPCs are mediated by regulating of GDF11 and downstream SMAD2/3/FAK/Akt/eNOS signaling pathway.
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Affiliation(s)
- Hai-Tao Huang
- Department of Thoracic and Cardiovascular Surgery, Nantong First People's Hospital, Nantong 226001, China
| | - Zhen-Chuan Liu
- Department of Thoracic and Cardiovascular Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Kai-Qin Wu
- Department of Thoracic and Cardiovascular Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Shao-Rui Gu
- Department of Thoracic and Cardiovascular Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Tian-Cheng Lu
- Department of Thoracic and Cardiovascular Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Chong-Jun Zhong
- Department of Thoracic and Cardiovascular Surgery, Nantong First People's Hospital, Nantong 226001, China
| | - Yong-Xin Zhou
- Department of Thoracic and Cardiovascular Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
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17
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Wang Y, Guan J, Wang Y. Could microRNA be used as a diagnostic tool for lung cancer? J Cell Biochem 2019; 120:18937-18945. [PMID: 31237019 DOI: 10.1002/jcb.29214] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/31/2019] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Current methods for diagnosing lung cancer (LC) have varying degrees of risks and complications. MicroRNA (miRNA) is a small molecule noncoding RNA with gene regulation functions. Many studies have shown that miRNA can be used for the diagnosis of LC, but there are differences in diagnostic accuracy. Therefore, we aim to systematically review and meta-analyze published articles to comprehensively evaluate the diagnostic value of miRNA for LC. MATERIALS AND METHODS We searched the PubMed, Embase, and Cochrane databases, and calculated the area under the curve (AUC) by plotting the summary receiver operator characteristic curve using the sensitivity and specificity of each included study. The AUC was calculated and the likelihood ratio was plotted to assess the diagnostic accuracy of miRNA. We used QUADAS-2 in Review Manager 5.3 to evaluate the quality of all the articles. The other analyses were performed using the STATA 12.0 software. RESULTS We included a total of 29 articles, 98 studies, and the qualities of all the articles were satisfactory. The overall pooled parameters calculated from all studies were as follows: sensitivity = 0.77, specificity = 0.83, positive likelihood ratio (PLR) = 4.6, negative likelihood ratio (NLR) = 0.28, and AUC = 0.87 for miRNA diagnosis. It had significant advantages over other biomarkers. Subgroup analysis showed that when combined four or more miRNA for the diagnosis of LC, the parameters were as follows: sensitivity = 0.90, specificity = 0.93, PLR = 13.2, NLR = 0.11, and AUC = 0.97. CONCLUSION Four or more miRNA combination could be used for the diagnosis of LC. Besides this, we also found that miRNA showed a greater advantage in distinguishing LC from benign lung diseases than distinguishing between LC and normal people. Our findings provided a new way of thinking about the clinical diagnosis of LC from a nonmorphological aspect.
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Affiliation(s)
- Yang Wang
- Department of Clinical Medicine, Shihezi University School of Medicine, Shihezi, China
| | - Jian Guan
- Department of Pulmonary and Critical Care Medicine, The People's Hospital of Suzhou National Hi-Tech District, Suzhou, China
| | - Yaolin Wang
- Department of Clinical Medicine, Shihezi University School of Medicine, Shihezi, China
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18
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Hu J, Hu X, Kan T. MiR-34c Participates in Diabetic Corneal Neuropathy Via Regulation of Autophagy. Invest Ophthalmol Vis Sci 2019; 60:16-25. [PMID: 30601927 DOI: 10.1167/iovs.18-24968] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate the contribution and mechanism of miRNAs and autophagy in diabetic peripheral neuropathy. Methods In this study, we used streptozotocin (STZ)-induced type I diabetes C57 mice as animal models, and we detected the expression of miR-34c and autophagic intensity in trigeminal ganglion (TG) tissue. The bioinformatics software was used to predict and analyze the potential targets of miR-34c. Primary trigeminal ganglion neurons were cultured in vitro to investigate the effect of miR-34c on axon growth and survival of TG cells. A corneal epithelial damage-healing model was established on the diabetic mice, then miR-34c antagomir was injected subconjunctivally. The condition of corneal epithelial healing was observed through sodium fluorescein staining, and the peripheral nerve degeneration of the cornea was evaluated by β-tublin corneal nerve staining. Results The expression of miR-34c was significantly increased in TG tissue of type I diabetic mice by real-time PCR. Western blot showed that autophagy-related proteins Atg4B and LC3-II were significantly down-regulated in diabetes TG compared with normal control. Trigeminal neuron immunofluorescence showed that the length of the trigeminal ganglion cell synapses was significantly increased after miR-34c antagomir treatment compared with normal cultures. Subconjunctival injection of miR-34c antagomir can significantly promote corneal epithelium healing of diabetic mice and appreciably promote the regeneration of corneal nerve. At the same time, it can significantly increase the expression of autophagy in TG tissue of type I diabetic mice. Conclusions In this study , miR-34c was found to affect the growth of trigeminal sensory neurons and the repair of diabetic corneal nerve endings by acting directly on Atg4B.
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Affiliation(s)
- Jianzhang Hu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fu Zhou, China
| | - XinYing Hu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fu Zhou, China
| | - Tong Kan
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fu Zhou, China
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19
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Massaro JD, Polli CD, Costa E Silva M, Alves CC, Passos GA, Sakamoto-Hojo ET, Rodrigues de Holanda Miranda W, Bispo Cezar NJ, Rassi DM, Crispim F, Dib SA, Foss-Freitas MC, Pinheiro DG, Donadi EA. Post-transcriptional markers associated with clinical complications in Type 1 and Type 2 diabetes mellitus. Mol Cell Endocrinol 2019; 490:1-14. [PMID: 30926524 DOI: 10.1016/j.mce.2019.03.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/08/2019] [Accepted: 03/20/2019] [Indexed: 01/10/2023]
Abstract
The delayed diagnosis and the inadequate treatment of diabetes increase the risk of chronic complications. The study of regulatory molecules such as miRNAs can provide expression profiles of diabetes and diabetes complications. We evaluated the mononuclear cell miRNA profiles of 63 Type 1 and Type 2 diabetes patients presenting or not microvascular complications, and 40 healthy controls, using massive parallel sequencing. Gene targets, enriched pathways, dendograms and miRNA-mRNA networks were performed for the differentially expressed miRNAs. Six more relevant miRNAs were validated by RT-qPCR and data mining analysis. MiRNAs associated with specific complications included: i) neuropathy (miR-873-5p, miR-125a-5p, miR-145-3p and miR-99b-5p); ii) nephropathy (miR-1249-3p, miR-193a-5p, miR-409-5p, miR-1271-5p, miR-501-3p, miR-148b-3p and miR-9-5p); and iii) retinopathy (miR-143-3p, miR-1271-5p, miR-409-5p and miR-199a-5p). These miRNAs mainly targeted gene families and specific genes associated with advanced glycation end products and their receptors. Sets of miRNAs were also defined as potential targets for diabetes/diabetes complication pathogenesis.
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Affiliation(s)
- Juliana Doblas Massaro
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil.
| | - Claudia Danella Polli
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Matheus Costa E Silva
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Cinthia Caroline Alves
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Geraldo Aleixo Passos
- Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil; Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, 14040-900, Ribeirão Preto, SP, Brazil
| | - Elza Tiemi Sakamoto-Hojo
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, 14040-900, Ribeirão Preto, SP, Brazil
| | - Wallace Rodrigues de Holanda Miranda
- Division of Endocrinology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Nathalia Joanne Bispo Cezar
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Diane Meyre Rassi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Felipe Crispim
- Endocrinology and Diabetes Division, Department of Medicine, Federal University of São Paulo, 04039-032, São Paulo, SP, Brazil
| | - Sergio Atala Dib
- Endocrinology and Diabetes Division, Department of Medicine, Federal University of São Paulo, 04039-032, São Paulo, SP, Brazil
| | - Maria Cristina Foss-Freitas
- Division of Endocrinology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil
| | - Daniel Guariz Pinheiro
- Department of Technology, Faculty of Agriculture and Veterinary Sciences, University of the State of São Paulo, 14884-900, Jaboticabal, SP, Brazil
| | - Eduardo Antônio Donadi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, 14048-900, Ribeirão Preto, SP, Brazil.
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20
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McNeill B, Ostojic A, Rayner KJ, Ruel M, Suuronen EJ. Collagen biomaterial stimulates the production of extracellular vesicles containing microRNA-21 and enhances the proangiogenic function of CD34 + cells. FASEB J 2018; 33:4166-4177. [PMID: 30526047 DOI: 10.1096/fj.201801332r] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
CD34+ cells are promising for revascularization therapy, but their clinical use is limited by low cell counts, poor engraftment, and reduced function after transplantation. In this study, a collagen type I biomaterial was used to expand and enhance the function of human peripheral blood CD34+ cells, and potential underlying mechanisms were examined. Compared to the fibronectin control substrate, biomaterial-cultured CD34+ cells from healthy donors had enhanced proliferation, migration toward VEGF, angiogenic potential, and increased secretion of CD63+CD81+ extracellular vesicles (EVs). In the biomaterial-derived EVs, greater levels of the angiogenic microRNAs (miRs), miR-21 and -210, were detected. Notably, biomaterial-cultured CD34+ cells had reduced mRNA and protein levels of Sprouty (Spry)1, which is an miR-21 target and negative regulator of endothelial cell proliferation and angiogenesis. Similar to the results of healthy donor cells, biomaterial culture increased miR-21 and -210 expression in CD34+ cells from patients who underwent coronary artery bypass surgery, which also exhibited improved VEGF-mediated migration and angiogenic capacity. Therefore, collagen biomaterial culture may be useful for expanding the number and enhancing the function of CD34+ cells in patients, possibly mediated through suppression of Spry1 activity by EV-derived miR-21. These results may provide a strategy to enhance the therapeutic potency of CD34+ cells for vascular regeneration.-McNeill, B., Ostojic, A., Rayner, K. J., Ruel, M., Suuronen, E. J. Collagen biomaterial stimulates the production of extracellular vesicles containing microRNA-21 and enhances the proangiogenic function of CD34+ cells.
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Affiliation(s)
- Brian McNeill
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Aleksandra Ostojic
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Katey J Rayner
- Atherosclerosis, Genomics, and Cell Biology Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Marc Ruel
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Erik J Suuronen
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
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21
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Shao Y, Li X, Wood JW, Ma JX. Mitochondrial dysfunctions, endothelial progenitor cells and diabetic retinopathy. J Diabetes Complications 2018; 32:966-973. [PMID: 30068485 DOI: 10.1016/j.jdiacomp.2018.06.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 12/11/2022]
Abstract
AIM Diabetic retinopathy (DR) is the leading cause of vision loss in the working age population. Endothelial progenitor cells (EPC) play a vital role in vascular damage repair. This article will review recent progress regarding mitochondrial and EPC dysfunction associated with DR. RESULTS EPCs represent a limited population of adult stem cells possessing vasculogenic potential postnatally; their number and function are changed in DR. Among all the function changes, mitochondrial dysfunction plays an important role in the dysregulation of EPCs, as mitochondria regulate energy balance, and cell fate determination. CONCLUSIONS Although the mechanism for the role of mitochondria dysregulation in EPC function remains elusive, mitochondria of EPCs represent a promising target for the treatment of the vasculopathy presented within DR.
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Affiliation(s)
- Yan Shao
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin, China; Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73014, USA
| | - Xiaorong Li
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin, China
| | - John W Wood
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73014, USA
| | - Jian-Xing Ma
- Department of Physiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73014, USA.
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22
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Cole-Jeffrey CT, Pepine CJ, Katovich MJ, Grant MB, Raizada MK, Hazra S. Beneficial Effects of Angiotensin-(1-7) on CD34+ Cells From Patients With Heart Failure. J Cardiovasc Pharmacol 2018; 71:155-159. [PMID: 29140957 PMCID: PMC5839943 DOI: 10.1097/fjc.0000000000000556] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The dysfunctional nature of CD34 cells from patients with heart failure (HF) may make them unsuitable for autologous stem-cell therapy. In view of evidence that the vasoprotective axis of the renin-angiotensin system (RAS) improves CD34 cell functions, we hypothesized that CD34 cells from patients with HF will be dysfunctional and that angiotensin-(1-7) [Ang-(1-7)] would improve their function. Peripheral blood was collected from New York Heart Association class II-IV patients with HF (n = 31) and reference subjects (n = 16). CD34 cell numbers from patients with HF were reduced by 47% (P < 0.05) and also displayed 76% reduction in migratory capacity and 56% (P < 0.05) lower production of nitric oxide. These alterations were associated with increases in RAS genes angiotensin-converting enzyme and AT2R (595%, P < 0.05) mRNA levels and 80% and 85% decreases in angiotensin-converting enzyme 2 and Mas mRNA levels, respectively. Treatment with Ang-(1-7) enhanced CD34 cell function through increased migratory potential and nitric oxide production, and reduced reactive oxygen species generation. These data show that HF CD34 cells are dysfunctional, and Ang-(1-7) improves their functions. This suggests that activation of the vasoprotective axis of the RAS may hold therapeutic potential for autologous stem-cell therapy in patients with HF.
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Affiliation(s)
- Colleen T. Cole-Jeffrey
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA
| | - Carl J. Pepine
- Department of Medicine, University of Florida, Gainesville, FL, USA
| | | | - Maria B. Grant
- Department of Ophthalmology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mohan K. Raizada
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA
| | - Sugata Hazra
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA
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23
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Sargento-Freitas J, Aday S, Nunes C, Cordeiro M, Gouveia A, Silva F, Machado C, Rodrigues B, Santo GC, Ferreira C, Amorim A, Sousa S, Gomes AC, Castelo-Branco M, Ferreira L, Cunha L. Endothelial progenitor cells enhance blood-brain barrier permeability in subacute stroke. Neurology 2017; 90:e127-e134. [PMID: 29237797 DOI: 10.1212/wnl.0000000000004801] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/29/2017] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To study the association among endothelial progenitor cells (EPCs), subacute blood-brain barrier (BBB) permeability, and clinical outcome after ischemic stroke, determining the micro RNAs of EPCs responsible for good clinical outcome. METHODS We included consecutive patients with nonlacunar acute ischemic strokes in the territory of a middle cerebral artery and ages between 18 and 80 years. Clinical outcome was defined as modified Rankin Scale score at 3 months. Neuroimaging was performed at day 0 and 7 by MRI, including assessment of BBB permeability by dynamic contrast enhancement. EPCs were isolated from peripheral venous blood, quantified, and submitted to in vitro functional tests, including migratory and angiogenic assays. Stroke hemodynamics were evaluated serially by ultrasound. Statistical significance was set at p < 0.05. RESULTS We included 45 patients; mean age was 70.0 ± 10.0 years. The in vitro functional properties of EPCs were associated with BBB permeability, particularly at day 7. The number of each EPC subset at both timepoints was not associated with BBB permeability. Permeability of BBB at day 7 was independently associated with improved clinical outcome (odds ratio 0.897; 95% confidence interval 0.816-0.986; p = 0.025). The EPCs (CD34+ cell subset) of patients with good clinical outcome showed 24 differentially expressed miRNAs, with a common effect on adherens junction pathway. CONCLUSIONS The functional properties of EPCs are associated with enhanced subacute permeability of BBB and improved clinical outcome after acute ischemic stroke.
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Affiliation(s)
- João Sargento-Freitas
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Sezin Aday
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - César Nunes
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Miguel Cordeiro
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Ana Gouveia
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Fernando Silva
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Cristina Machado
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Bruno Rodrigues
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Gustavo Cordeiro Santo
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Carlos Ferreira
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - André Amorim
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Susana Sousa
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Ana Catarina Gomes
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Miguel Castelo-Branco
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal
| | - Lino Ferreira
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal.
| | - Luís Cunha
- From the Stroke Unit (J.S.-F., A.G., F.S., C.M., B.R., G.C., L.C.), Centro Hospitalar e Universitário de Coimbra; Faculdade de Medicina da Universidade de Coimbra (J.S.-F., M.C.-B., L.F., L.C.); Centro de Neurociências e Biologia Celular (J.S.-F., S.A., A.C.G., L.F.); Instituto de Ciências Nucleares Aplicadas à Saúde (C.N., M.C., C.F., A.A., M.C.-B.), Coimbra; and Genomics Unit, Biocant-Biotechnology Innovation Center (S.S., A.C.G.), Cantanhede, Portugal.
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24
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Kady N, Yan Y, Salazar T, Wang Q, Chakravarthy H, Huang C, Beli E, Navitskaya S, Grant M, Busik J. Increase in acid sphingomyelinase level in human retinal endothelial cells and CD34 + circulating angiogenic cells isolated from diabetic individuals is associated with dysfunctional retinal vasculature and vascular repair process in diabetes. J Clin Lipidol 2017; 11:694-703. [PMID: 28457994 PMCID: PMC5492962 DOI: 10.1016/j.jacl.2017.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/08/2017] [Accepted: 03/17/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Diabetic retinopathy is a microvascular disease that results from retinal vascular degeneration and defective repair due to diabetes-induced endothelial progenitor dysfunction. OBJECTIVE Understanding key molecular factors involved in vascular degeneration and repair is paramount for developing effective diabetic retinopathy treatment strategies. We propose that diabetes-induced activation of acid sphingomyelinase (ASM) plays essential role in retinal endothelial and CD34+ circulating angiogenic cell (CAC) dysfunction in diabetes. METHODS Human retinal endothelial cells (HRECs) isolated from control and diabetic donor tissue and human CD34+ CACs from control and diabetic patients were used in this study. ASM messenger RNA and protein expression were assessed by quantitative polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. To evaluate the effect of diabetes-induced ASM on HRECs and CD34+ CACs function, tube formation, CAC incorporation into endothelial tubes, and diurnal release of CD34+ CACs in diabetic individuals were determined. RESULTS ASM expression level was significantly increased in HRECs isolated from diabetic compared with control donor tissue, as well as CD34+ CACs and plasma of diabetic patients. A significant decrease in tube area was observed in HRECs from diabetic donors compared with control HRECs. The tube formation deficiency was associated with increased expression of ASM in diabetic HRECs. Moreover, diabetic CD34+ CACs with high ASM showed defective incorporation into endothelial tubes. Diurnal release of CD34+ CACs was disrupted with the rhythmicity lost in diabetic patients. CONCLUSION Collectively, these findings support that diabetes-induced ASM upregulation has a marked detrimental effect on both retinal endothelial cells and CACs.
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Affiliation(s)
- Nermin Kady
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Yuanqing Yan
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Tatiana Salazar
- Genetics and Genomics Graduate Program, Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
| | - Qi Wang
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | | | - Chao Huang
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Eleni Beli
- Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, USA
| | | | - Maria Grant
- Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, USA
| | - Julia Busik
- Department of Physiology, Michigan State University, East Lansing, MI, USA.
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25
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Zhou D, Wang Y, Chen L, Jia L, Yuan J, Sun M, Zhang W, Wang P, Zuo J, Xu Z, Luan J. Evolving roles of circadian rhythms in liver homeostasis and pathology. Oncotarget 2016; 7:8625-39. [PMID: 26843619 PMCID: PMC4890992 DOI: 10.18632/oncotarget.7065] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/18/2016] [Indexed: 02/06/2023] Open
Abstract
Circadian clock in mammals is determined by a core oscillator in the suprachiasmatic nucleus (SCN) of the hypothalamus and synchronized peripheral clocks in other tissues. The coherent timing systems could sustain robust output of circadian rhythms in response to the entrainment controlled environmentally. Disparate approaches have discovered that clock genes and clock-controlled genes (CCGs) exist in nearly all mammalian cell types and are essential for establishing the mechanisms and complexity of internal time-keeping systems. Accumulating evidence demonstrates that the control of homeostasis and pathology in the liver involves intricate loops of transcriptional and post-translational regulation of clock genes expression. This review will focus on the recent advances with great importance concerning clock rhythms linking liver homeostasis and diseases. We particularly highlight what is currently known of the evolving insights into the mechanisms underlying circadian clock . Eventually , findings during recent years in the field might prompt new circadian-related chronotherapeutic strategies for the diagnosis and treatment of liver diseases by coupling these processes.
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Affiliation(s)
- Dexi Zhou
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Yaqin Wang
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Lu Chen
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Leijuan Jia
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Jie Yuan
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Mei Sun
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Wen Zhang
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Peipei Wang
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Jian Zuo
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Zhenyu Xu
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
| | - Jiajie Luan
- Laboratory of Clinical Pharmacy of Wannan Medical College, Wuhu, Anhui Province, China
- Department of Pharmacy in Yijishan Hospital of Wannan Medical College, Wuhu, Anhui Province, China
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