1
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Mok GF, Turner S, Smith EL, Mincarelli L, Lister A, Lipscombe J, Uzun V, Haerty W, Macaulay IC, Münsterberg AE. Single cell RNA-sequencing and RNA-tomography of the avian embryo extending body axis. Front Cell Dev Biol 2024; 12:1382960. [PMID: 38863942 PMCID: PMC11165230 DOI: 10.3389/fcell.2024.1382960] [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: 02/06/2024] [Accepted: 04/29/2024] [Indexed: 06/13/2024] Open
Abstract
Introduction: Vertebrate body axis formation initiates during gastrulation and continues within the tail bud at the posterior end of the embryo. Major structures in the trunk are paired somites, which generate the musculoskeletal system, the spinal cord-forming part of the central nervous system, and the notochord, with important patterning functions. The specification of these different cell lineages by key signalling pathways and transcription factors is essential, however, a global map of cell types and expressed genes in the avian trunk is missing. Methods: Here we use high-throughput sequencing approaches to generate a molecular map of the emerging trunk and tailbud in the chick embryo. Results and Discussion: Single cell RNA-sequencing (scRNA-seq) identifies discrete cell lineages including somites, neural tube, neural crest, lateral plate mesoderm, ectoderm, endothelial and blood progenitors. In addition, RNA-seq of sequential tissue sections (RNA-tomography) provides a spatially resolved, genome-wide expression dataset for the avian tailbud and emerging body, comparable to other model systems. Combining the single cell and RNA-tomography datasets, we identify spatially restricted genes, focusing on somites and early myoblasts. Thus, this high-resolution transcriptome map incorporating cell types in the embryonic trunk can expose molecular pathways involved in body axis development.
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Affiliation(s)
- G. F. Mok
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
| | - S. Turner
- Earlham Institute, Norwich, United Kingdom
| | - E. L. Smith
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
| | | | - A. Lister
- Earlham Institute, Norwich, United Kingdom
| | | | - V. Uzun
- Earlham Institute, Norwich, United Kingdom
| | - W. Haerty
- Earlham Institute, Norwich, United Kingdom
| | | | - A. E. Münsterberg
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
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2
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Yang S, Ning C, Yang C, Li W, Zhang Q, Wang D, Tang H. Identify Candidate Genes Associated with the Weight and Egg Quality Traits in Wenshui Green Shell-Laying Chickens by the Copy Number Variation-Based Genome-Wide Association Study. Vet Sci 2024; 11:76. [PMID: 38393094 PMCID: PMC10892766 DOI: 10.3390/vetsci11020076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/03/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
Copy number variation (CNV), as an essential source of genetic variation, can have an impact on gene expression, genetic diversity, disease susceptibility, and species evolution in animals. To better understand the weight and egg quality traits of chickens, this paper aimed to detect CNVs in Wenshui green shell-laying chickens and conduct a copy number variation regions (CNVRs)-based genome-wide association study (GWAS) to identify variants and candidate genes associated with their weight and egg quality traits to support related breeding efforts. In our paper, we identified 11,035 CNVRs in Wenshui green shell-laying chickens, which collectively spanned a length of 13.1 Mb, representing approximately 1.4% of its autosomal genome. Out of these CNVRs, there were 10,446 loss types, 491 gain types, and 98 mixed types. Notably, two CNVRs showed significant correlations with egg quality, while four CNVRs exhibited significant associations with body weight. These significant CNVRs are located on chromosome 4. Further analysis identified potential candidate genes that influence weight and egg quality traits, including FAM184B, MED28, LAP3, ATOH8, ST3GAL5, LDB2, and SORCS2. In this paper, the CNV map of the Wenshui green shell-laying chicken genome was constructed for the first time through population genotyping. Additionally, CNVRs can be employed as molecular markers to genetically improve chickens' weight and egg quality traits.
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Affiliation(s)
- Suozhou Yang
- Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China; (S.Y.); (C.N.); (C.Y.); (W.L.)
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
| | - Chao Ning
- Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China; (S.Y.); (C.N.); (C.Y.); (W.L.)
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
| | - Cheng Yang
- Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China; (S.Y.); (C.N.); (C.Y.); (W.L.)
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
| | - Wenqiang Li
- Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China; (S.Y.); (C.N.); (C.Y.); (W.L.)
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
| | - Qin Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
- College of Animal Science and Technology, China Agricultural University, Beijing 100083, China
| | - Dan Wang
- Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China; (S.Y.); (C.N.); (C.Y.); (W.L.)
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
| | - Hui Tang
- Key Laboratory of Efficient Utilization of Non-Grain Feed Resources (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China; (S.Y.); (C.N.); (C.Y.); (W.L.)
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an 271018, China;
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3
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Honeycutt SE, N'Guetta PEY, Hardesty DM, Xiong Y, Cooper SL, Stevenson MJ, O'Brien LL. Netrin 1 directs vascular patterning and maturity in the developing kidney. Development 2023; 150:dev201886. [PMID: 37818607 PMCID: PMC10690109 DOI: 10.1242/dev.201886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023]
Abstract
The intricate vascular system of the kidneys supports body fluid and organ homeostasis. However, little is known about how vascular architecture is established during kidney development. More specifically, how signals from the kidney influence vessel maturity and patterning remains poorly understood. Netrin 1 (Ntn1) is a secreted ligand that is crucial for vessel and neuronal guidance. Here, we demonstrate that Ntn1 is expressed by Foxd1+ stromal progenitors in the developing mouse kidney and conditional deletion (Foxd1GC/+;Ntn1fl/fl) results in hypoplastic kidneys with extended nephrogenesis. Wholemount 3D analyses additionally revealed the loss of a predictable vascular pattern in Foxd1GC/+;Ntn1fl/fl kidneys. As vascular patterning has been linked to vessel maturity, we investigated arterialization. Quantification of the CD31+ endothelium at E15.5 revealed no differences in metrics such as the number of branches or branch points, whereas the arterial vascular smooth muscle metrics were significantly reduced at both E15.5 and P0. In support of our observed phenotypes, whole kidney RNA-seq revealed disruptions to genes and programs associated with stromal cells, vasculature and differentiating nephrons. Together, our findings highlight the significance of Ntn1 to proper vascularization and kidney development.
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Affiliation(s)
- Samuel E. Honeycutt
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Pierre-Emmanuel Y. N'Guetta
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Deanna M. Hardesty
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yubin Xiong
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Shamus L. Cooper
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Matthew J. Stevenson
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Lori L. O'Brien
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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4
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Halgrain M, Bernardet N, Hennequet-Antier C, Hincke M, Réhault-Godbert S. RNA-seq analysis of the active chick embryo chorioallantoic membrane reveals genes that encode proteins assigned to ion transport and innate immunity. Genomics 2023; 115:110564. [PMID: 36642281 DOI: 10.1016/j.ygeno.2023.110564] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/06/2022] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
The chicken chorioallantoic membrane (CAM) is an extraembryonic membrane that is vital for the embryo. It undergoes profound cell differentiation between 11 and 15 days of embryonic incubation (EID), which corresponds to the acquisition of its physiological functions. To gain insight into the functional genes that accompany these biological changes, RNA sequencing of the CAM at EID11 and EID15 was performed. Results showed that CAM maturation coincides with the overexpression of 4225 genes, including many genes encoding proteins involved in mineral metabolism, innate immunity, homeostasis, angiogenesis, reproduction, and regulation of hypoxia. Of these genes, some exhibit variability in expression depending on the chicken breed (broiler versus layer breeds). Besides the interest of these results for the poultry sector, the identification of new functional gene candidates opens additional research avenues in the field of developmental biology.
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Affiliation(s)
| | | | - Christelle Hennequet-Antier
- Université Paris-Saclay, INRAE, MaIAGE, 78350 Jouy-en-Josas, France; Université Paris-Saclay, INRAE, BioinfOmics, MIGALE bioinformatics facility, 78350 Jouy-en-Josas, France
| | - Maxwell Hincke
- Department of Innovation in Medical Education, Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada; LE STUDIUM Research Consortium, Loire Valley Institute for Advanced Studies, Orléans-Tours, France
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5
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Zhang T, Huang Q, Gan K, Zhou K, Hu K, Ding W, Jin J, Li J. Effects of limonin treatment on the survival of random skin flaps in mice. Front Surg 2023; 9:1043239. [PMID: 36684359 PMCID: PMC9852612 DOI: 10.3389/fsurg.2022.1043239] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/21/2022] [Indexed: 01/09/2023] Open
Abstract
Random skin flap is commonly used in plastic and reconstructive surgery, however, distal part of skin flap often occurs ischemia and necrosis. Limonin, with bioactivities of anti-inflammation, anti-apoptosis and anti-oxidative stress, may be effective for skin flap survival. In our study, random flap model was performed in mice to explore the role of limonin in the survival of skin flap. On postoperative day 7, the necrosis of skin flaps was observed, while visualization of blood flow below the tissue surface was detected through Laser Doppler blood flow imaging (LDBFI). Then flap tissues were acquired to assess and levels of angiogenesis, apoptosis and oxidative stress. The results showed that limonin decreased necrosis and edema of skin flaps compared with the control group, with more blood flow in the flap under LDBFI detection. Limonin treatment also increased the mean vessels density, elevated the expression levels of angiogenic proteins (matrix metallopeptidase 9, vascular endothelial growth factor, Cadherin5) and antioxidant proteins [superoxide dismutase 1 (SOD1), endothelial nitric oxide synthase, heme oxygenase], and reduced the expression of apoptotic factors (BAX, CYC, Caspase3). In summary, limonin could effectively enhance the survival of random skin flap, the potential mechanism may attribute to the induction of angiogenesis, and inhibition of apoptosis and oxidative stress.
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Affiliation(s)
- Ting Zhang
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China
| | - Qing Huang
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China
| | - Kaifeng Gan
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China
| | - Ke Zhou
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China
| | - Keqi Hu
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China
| | - Wei Ding
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China
| | - Jiale Jin
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, China,Correspondence: Jiale Jin Jin Li
| | - Jin Li
- Department of Orthopaedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo, China,Correspondence: Jiale Jin Jin Li
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6
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Chu F, Xu X, Zhang Y, Cai H, Peng J, Li Y, Zhang H, Liu H, Chen X. LIM-domain binding protein 2 was down-regulated by miRNA-96-5p inhibited the proliferation, invasion and metastasis of lung cancer H1299 cells. Clinics (Sao Paulo) 2023; 78:100145. [PMID: 36473369 PMCID: PMC9727592 DOI: 10.1016/j.clinsp.2022.100145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 10/06/2022] [Accepted: 11/07/2022] [Indexed: 12/09/2022] Open
Abstract
OBJECTIVES Lung cancer was one of the most common malignancies around the world. It has great significance in to search for the mechanism of occurrence and development of lung cancer. LIM Domain Binding protein 2 (LDB2) belongs to the LIM-domain binding family, it can be used as a binding protein that combined with other transcription factors to form the transcription complex for regulating the expression of target genes. The expression of microRNA-96-5p (miR-96-5p) has been investigated in various tumors. The aim of this study is to investigate the potential role of LDB2 and miR-96-5p in lung cancer. METHODS Real-time quantitative PCR was applied to detect the expression of LDB2 and miR-96-5p. The proliferation, invasion, and metastasis of H1299 cells were analyzed by CCK8, transwell, and wound healing assay after LDB2 or miR-96-5p transfection. Luciferase activities assay and western blot were used to reveal the targeted regulation between LDB2 and miR-96-5p. RESULTS Here the authors found LDB2 was down-regulated in lung cancer tissues and negatively correlated with miR-96-5p expression, it could promote or inhibit the proliferation, invasion and metastasis of H1299 cells after LDB2 knockdown or overexpression and regulate the expression of cyclinD1, MMP9, Bcl-2, and Bax via ERK1/2 signaling pathway. Furthermore, miR-96-5p exerted its function by directly binding to 3'-UTR of LDB2 and regulating expression of LDB2. miR-96-5p could promote the proliferation, invasion, and metastasis of H1299 cells. CONCLUSION These findings demonstrate that LDB2 can act as a new regulator to inhibit cell proliferation, invasion, and metastasis via the ERK1/2 signaling pathway, and miR-96-5p may be a potential promising molecular by targeting LDB2 in lung cancer.
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Affiliation(s)
- Fuying Chu
- Department of Laboratory Medicine, Nantong First People's Hospital, China
| | - Xinxin Xu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, China
| | - Yan Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, China
| | - Hua Cai
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, China
| | - Jingjing Peng
- Department of Laboratory Medicine, Nantong First People's Hospital, China
| | - Yanan Li
- Department of Laboratory Medicine, Nantong First People's Hospital, China
| | - Han Zhang
- Department of Laboratory Medicine, Nantong First People's Hospital, China
| | - Hongli Liu
- Department of Laboratory Medicine, Nantong Tumor Hospital, China
| | - Xiang Chen
- Department of Laboratory Medicine, Nantong First People's Hospital, China.
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7
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Ghimire S, Zhang X, Zhang J, Wu C. Use of Chicken Embryo Model in Toxicity Studies of Endocrine-Disrupting Chemicals and Nanoparticles. Chem Res Toxicol 2022; 35:550-568. [PMID: 35286071 DOI: 10.1021/acs.chemrestox.1c00399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lab animals such as mice and rats are widely used in toxicity research of food additive and pharmaceutics, despite the well-recognized research limitation such as the inability to simulate human neurological diseases, faster absorption of chemicals, big variations among species, and high cost when using a large number of animals. The Society of Toxicology's guidance now focuses on minimizing discomfort and distress of lab animals, finding alternative ways to reduce animal number, replacing animals with in vitro models, and complying to the animal welfare policies. The chicken embryonic model can be a better alternative to mice and rats because of its abundant availability and cost-effectiveness. It can be studied in both laboratory and natural environment, with easy manipulation in ovo or in vivo. The objective of this review paper is to evaluate the use of chicken embryonic model in toxicity evaluation for endocrine-disrupting chemicals (EDCs) and nanoparticles (NPs) by different end points to determine more comprehensive toxic responses. The end points include chicken embryonic mortality and hatchability, developmental malformation analysis, hormonal imbalance, physiological changes in endocrine organs, and antiangiogenesis. Major research methodologies using chicken embryos are also summarized to demonstrate their versatile practice and valuable application in modern toxicity evaluation of EDCs and NPs.
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Affiliation(s)
- Shweta Ghimire
- University of Delaware, Department of Animal and Food sciences, Newark, Delaware 19716, United States
| | - Xinwen Zhang
- University of Delaware, Department of Animal and Food sciences, Newark, Delaware 19716, United States
| | - Jinglin Zhang
- University of Delaware, Department of Animal and Food sciences, Newark, Delaware 19716, United States
| | - Changqing Wu
- University of Delaware, Department of Animal and Food sciences, Newark, Delaware 19716, United States
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8
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Hu FX, Yang J, Yang CH, Tao YN, Yang XS, Cui ML, Li GL, Li C, Jiang YH. Identification of lncRNA-mRNA regulatory network associated with isolated systolic hypertension and atherosclerotic cerebral infarction. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1589. [PMID: 34790795 PMCID: PMC8576659 DOI: 10.21037/atm-21-5176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/20/2021] [Indexed: 01/19/2023]
Abstract
Background Increasingly, evidence has shown that long non-coding RNAs (lncRNAs) play an important role in isolated systolic hypertension (ISH). However, a systematic lncRNA-messenger RNA (mRNA) regulatory network is still absent in isolated systolic hypertension and atherosclerotic cerebral infarction patients (ISH & ACI). This research aimed to establish a lncRNA-mRNA co-expression network in patients with ISH & ACI, to probe into the potential functions of lncRNA in such patients. Methods Expression profiles of lncRNA and mRNAs were collected and compared, from 8 patients with ISH and 8 patients with ISH & ACI by RNA-seq data. Differentially expressed lncRNAs and mRNAs were screened out via high-throughput sequencing in the plasma of ISH/ACI patients and control ISH patients. Then, a lncRNA-mRNA interaction network was built using the Pearson correlation coefficient by Cytoscape software. The expression levels of the hub genes and lncRNAs were verified by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) in another 10 ISH/ACI patients and 10 control patients. This study was approved by the responsible institutional review board (IRB) and informed consent was provided by participants. Results A total of 2,768 differentially expressed lncRNAs and 747 differentially expressed mRNAs were identified. We identified two hub genes (CD226 and PARVB) and 11 lncRNAs in the lncRNA-mRNA interaction network. The results of qRT-PCR and cell assay verified that lncRNAs ENST00000590604 and CD226 are highly expressed in patients of ISH & ACI. Further, CD226 was associated with vascular endothelial cells growth and stability through the platelet activation and focal adhesion pathway. Conclusions We established a novel mRNA-lncRNA interaction network. The lncRNAs ENST00000590604 and CD226 might be the potential biomarkers of ISH & ACI.
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Affiliation(s)
- Fang-Xiao Hu
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jie Yang
- Shandong University of Traditional Chinese Medicine, Jinan, China.,Department of Cardiovascular, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chuan-Hua Yang
- Department of Cardiovascular, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan-Nan Tao
- Shandong University of Traditional Chinese Medicine Second Affiliated Hospital, Jinan, China
| | - Xue-Song Yang
- Department of Vascular Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ming-Ling Cui
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guan-Lan Li
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chao Li
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yue-Hua Jiang
- Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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9
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Niu R, Nie ZT, Liu L, Chang YW, Shen JQ, Chen Q, Dong LJ, Hu BJ. Follistatin-like protein 1 functions as a potential target of gene therapy in proliferative diabetic retinopathy. Aging (Albany NY) 2021; 13:8643-8664. [PMID: 33714952 PMCID: PMC8034962 DOI: 10.18632/aging.202678] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 12/03/2020] [Indexed: 11/29/2022]
Abstract
The degree of retinal fibrosis increased in proliferative diabetic retinopathy (PDR) patients after administration of anti-Vascular endothelial growth factor (VEGF) injections. Previous studies showed that the balance between connective tissue growth factor (CTGF) and VEGF plays an important role. Therefore, in a high-glucose state, an anti-VEGF and CTGFshRNA dual-target model was used to simulate clinical dual-target treatment in PDR patients, and RNA sequencing (RNA-Seq) technology was used for whole transcriptome sequencing. A hypoxia model was constructed to verify the sequencing results at the cellular level, and the vitreous humor and proliferative membranes were collected from patients for verification. All sequencing results included Follistatin-like protein 1 (FSTL1) and extracellular matrix (ECM) receptor pathway, indicated that anti-VEGF therapy may upregulate FSTL1 expression, while dual-target treatment downregulated FSTL1. Thus, we further studied the function of FSTL1 on the expression of VEGF and ECM factors by both overexpressing and silencing FSTL1. In conclusion, our results suggested that FSTL1 may be involved in the pathogenesis of PDR and is related to fibrosis caused by the anti-VEGF treatment, thus providing a potential target for gene therapy in PDR.
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Affiliation(s)
- Rui Niu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Ze-Tong Nie
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Lin Liu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Yu-Wen Chang
- Hetian District People's Hospital, Xinjiang, China
| | | | - Qiong Chen
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Li-Jie Dong
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Bo-Jie Hu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
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10
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Mapanao AK, Che PP, Sarogni P, Sminia P, Giovannetti E, Voliani V. Tumor grafted - chick chorioallantoic membrane as an alternative model for biological cancer research and conventional/nanomaterial-based theranostics evaluation. Expert Opin Drug Metab Toxicol 2021; 17:947-968. [PMID: 33565346 DOI: 10.1080/17425255.2021.1879047] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Introduction: Advancements in cancer management and treatment are associated with strong preclinical research data, in which reliable cancer models are demanded. Indeed, inconsistent preclinical findings and stringent regulations following the 3Rs principle of reduction, refinement, and replacement of conventional animal models currently pose challenges in the development and translation of efficient technologies. The chick embryo chorioallantoic membrane (CAM) is a system for the evaluation of treatment effects on the vasculature, therefore suitable for studies on angiogenesis. Apart from vascular effects, the model is now increasingly employed as a preclinical cancer model following tumor-grafting procedures.Areas covered: The broad application of CAM tumor model is highlighted along with the methods for analyzing the neoplasm and vascular system. The presented and cited investigations focus on cancer biology and treatment, encompassing both conventional and emerging nanomaterial-based modalities.Expert opinion: The CAM tumor model finds increased significance given the influences of angiogenesis and the tumor microenvironment in cancer behavior, then providing a qualified miniature system for oncological research. Ultimately, the establishment and increased employment of such a model may resolve some of the limitations present in the standard preclinical tumor models, thereby redefining the preclinical research workflow.
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Affiliation(s)
- Ana Katrina Mapanao
- Center for Nanotechnology Innovation@NEST, Istituto Italiano Di Tecnologia, Pisa, Italy.,NEST-Scuola Normale Superiore, Pisa, Italy
| | - Pei Pei Che
- Department of Radiation Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center, Amsterdam, The Netherlands.,Department of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, The Netherlands
| | - Patrizia Sarogni
- Center for Nanotechnology Innovation@NEST, Istituto Italiano Di Tecnologia, Pisa, Italy
| | - Peter Sminia
- Department of Radiation Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center, Amsterdam, The Netherlands
| | - Elisa Giovannetti
- Department of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, The Netherlands.,Cancer Pharmacology Lab, AIRC Start-Up Unit, Fondazione Pisana per La Scienza, Pisa, Italy
| | - Valerio Voliani
- Center for Nanotechnology Innovation@NEST, Istituto Italiano Di Tecnologia, Pisa, Italy
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11
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Lin J, Jia C, Wang Y, Jiang S, Jia Z, Chen N, Sheng S, Li S, Jiang L, Xu H, Zhou K, Chen Y. Therapeutic potential of pravastatin for random skin flaps necrosis: involvement of promoting angiogenesis and inhibiting apoptosis and oxidative stress. Drug Des Devel Ther 2019; 13:1461-1472. [PMID: 31118580 PMCID: PMC6505465 DOI: 10.2147/dddt.s195479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/23/2019] [Indexed: 12/23/2022] Open
Abstract
Background: Random skin flap is frequently used in plastic and reconstructive surgery, but its distal part often occurs ischemia and necrosis. Pravastatin (Prava) with bioactivities of pro-angiogenesis, anti-apoptosis and anti-oxidative stress, may be beneficial for flap survival. Materials and methods: A modified McFarlane flap model was performed in Sprague-Dawley rats. The animals were divided into the Control and Prava groups and treated as follows: the Prava group was injected intraperitoneally with 2 mg/kg Prava for consecutive 7 days, and the Control group received an equal volume of vehicle daily. On day 7, the necrosis skin flaps were observed, while visualization of blood flow below the tissue surface was performed by Laser Doppler blood flow imaging (LDBFI). Then animals were euthanized, and levels of angiogenesis, apoptosis and oxidative stress were analyzed. Results: Prava decreased necrosis and edema of skin flaps compared with the Control group, with more blood flow in the flap under LDBFI. Prava treatment increased the mean vessels density, elevated the expression levels of angiogenic proteins (matrix metallopeptidase 9, vascular endothelial growth factor, Cadherin5) and antioxidant proteins (superoxide dismutase 1 (SOD1), endothelial nitric oxide synthase, heme oxygenase), and decreased the expression of apoptotic factors (BAX, CYC, Caspase3). In addition, malondialdehyde content was reduced, and glutathione level and SOD activity were increased in the skin flaps after treatment with Prava. Conclusion: Prava promotes survival of random skin flap through induction of angiogenesis, and inhibition of apoptosis and oxidative stress.
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Affiliation(s)
- Jinti Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou325027, People’s Republic of China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Chang Jia
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Yongli Wang
- Department of Orthopaedics, Huzhou Central Hospital, Huzhou313300, People’s Republic of China
| | - Shanghong Jiang
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Zhenyu Jia
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China
| | - Nan Chen
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Shimin Sheng
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Shihen Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou325027, People’s Republic of China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Liangfu Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou325027, People’s Republic of China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Huazi Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou325027, People’s Republic of China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou325027, People’s Republic of China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Yijie Chen
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Department of Obstetrics and Gynecology, The Second Affliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou325027, People’s Republic of China
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12
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Deng MT, Zhu F, Yang YZ, Yang FX, Hao JP, Chen SR, Hou ZC. Genome-wide association study reveals novel loci associated with body size and carcass yields in Pekin ducks. BMC Genomics 2019; 20:1. [PMID: 30606130 PMCID: PMC6318962 DOI: 10.1186/s12864-018-5379-1] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 12/16/2018] [Indexed: 12/26/2022] Open
Abstract
Background Pekin duck products have become popular in Asia over recent decades and account for an increasing market share. However, the genetic mechanisms affecting carcass growth in Pekin ducks remain unknown. This study aimed to identify quantitative trait loci affecting body size and carcass yields in Pekin ducks. Results We measured 18 carcass traits in 639 Pekin ducks and performed genotyping using genotyping-by-sequencing (GBS). Loci-based association analysis detected 37 significant loci for the 17 traits. Thirty-seven identified candidate genes were involved in many biological processes. One single nucleotide polymorphism (SNP) (Chr1_140105435 A > T) located in the intron of the ATPase phospholipid transporting 11A gene (ATP11A) attained genome-wide significance associated with five weight traits. Eight SNPs were significantly associated with three body size traits, including the candidate gene plexin domain containing 2 (PLXDC2) associated with breast width and tensin 3 (TNS3) associated with fossil bone length. Only two SNPs were significantly associated with foot weight and four SNPs were significantly associated with heart weight. In the gene-based analysis, three genes (LOC101791418, TUBGCP3 (encoding tubulin gamma complex-associated protein 3), and ATP11A) were associated with four traits (42-day body weight, eviscerated weight, half-eviscerated weight, and leg muscle weight percentage). However, no loci were significantly associated with leg muscle weight in this study. Conclusions The novel results of this study improve our understanding of the genetic mechanisms regulating body growth in ducks and thus provide a genetic basis for breeding programs aimed at maximizing the economic potential of Pekin ducks. Electronic supplementary material The online version of this article (10.1186/s12864-018-5379-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Meng-Ting Deng
- National Engineering Laboratory for Animal Breeding and MARA Key Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing, 100193, China
| | - Feng Zhu
- National Engineering Laboratory for Animal Breeding and MARA Key Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing, 100193, China
| | - Yu-Ze Yang
- Beijing General Station of Animal Husbandry, Beijing, 100107, China
| | - Fang-Xi Yang
- Beijing Golden Star Duck Co., LTD, Beijing, 100076, China
| | - Jin-Ping Hao
- Beijing Golden Star Duck Co., LTD, Beijing, 100076, China
| | - Si-Rui Chen
- National Engineering Laboratory for Animal Breeding and MARA Key Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing, 100193, China
| | - Zhuo-Cheng Hou
- National Engineering Laboratory for Animal Breeding and MARA Key Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
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13
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Choi HJ, Rho SS, Choi DH, Kwon YG. LDB2 regulates the expression of DLL4 through the formation of oligomeric complexes in endothelial cells. BMB Rep 2018; 51:21-26. [PMID: 28946938 PMCID: PMC5796630 DOI: 10.5483/bmbrep.2018.51.1.140] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Indexed: 11/25/2022] Open
Abstract
Delta-like ligand 4 (DLL4) expression in endothelial cells is intimately associated with angiogenic sprouting and vascular remodeling, but the precise mechanism of transcriptional regulation of DLL4 remains incompletely understood. Here, we showed that LIM-domain binding protein 2 (LDB2) plays an important role in regulating basal DLL4 and VEGF-induced DLL4 expression. Knockdown of LDB2 using siRNA enhanced endothelial sprouting and tubular network formation in vitro. Injection of ldb2-morpholino resulted in defective development of intersegmental vessels in zebrafish. Reduction or overexpression of LDB2 in endothelial cells decreased or increased DLL4 expression. LDB2 regulated DLL4 promoter activity by binding to its promoter region and the same promoter region was occupied and regulated by the LMO2/TAL1/GATA2 complex. Interestingly, LDB2 also mediated VEGF-induced DLL4 expression in endothelial cells. The regulation of DLL4 by the LDB2 complex provides a novel mechanism of DLL4 transcriptional control that may be exploited to develop therapeutics for aberrant vascular remodeling.
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Affiliation(s)
- Hyun-Jung Choi
- Severance Integrative Research Institute for Cerebral & Cardiovascular Diseases (SIRIC), College of Medicine, Yonsei University, Seoul 03722, Korea
| | - Seung-Sik Rho
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Dong-Hoon Choi
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
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14
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Nowak-Sliwinska P, Alitalo K, Allen E, Anisimov A, Aplin AC, Auerbach R, Augustin HG, Bates DO, van Beijnum JR, Bender RHF, Bergers G, Bikfalvi A, Bischoff J, Böck BC, Brooks PC, Bussolino F, Cakir B, Carmeliet P, Castranova D, Cimpean AM, Cleaver O, Coukos G, Davis GE, De Palma M, Dimberg A, Dings RPM, Djonov V, Dudley AC, Dufton NP, Fendt SM, Ferrara N, Fruttiger M, Fukumura D, Ghesquière B, Gong Y, Griffin RJ, Harris AL, Hughes CCW, Hultgren NW, Iruela-Arispe ML, Irving M, Jain RK, Kalluri R, Kalucka J, Kerbel RS, Kitajewski J, Klaassen I, Kleinmann HK, Koolwijk P, Kuczynski E, Kwak BR, Marien K, Melero-Martin JM, Munn LL, Nicosia RF, Noel A, Nurro J, Olsson AK, Petrova TV, Pietras K, Pili R, Pollard JW, Post MJ, Quax PHA, Rabinovich GA, Raica M, Randi AM, Ribatti D, Ruegg C, Schlingemann RO, Schulte-Merker S, Smith LEH, Song JW, Stacker SA, Stalin J, Stratman AN, Van de Velde M, van Hinsbergh VWM, Vermeulen PB, Waltenberger J, Weinstein BM, Xin H, Yetkin-Arik B, Yla-Herttuala S, Yoder MC, Griffioen AW. Consensus guidelines for the use and interpretation of angiogenesis assays. Angiogenesis 2018; 21:425-532. [PMID: 29766399 PMCID: PMC6237663 DOI: 10.1007/s10456-018-9613-x] [Citation(s) in RCA: 404] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The formation of new blood vessels, or angiogenesis, is a complex process that plays important roles in growth and development, tissue and organ regeneration, as well as numerous pathological conditions. Angiogenesis undergoes multiple discrete steps that can be individually evaluated and quantified by a large number of bioassays. These independent assessments hold advantages but also have limitations. This article describes in vivo, ex vivo, and in vitro bioassays that are available for the evaluation of angiogenesis and highlights critical aspects that are relevant for their execution and proper interpretation. As such, this collaborative work is the first edition of consensus guidelines on angiogenesis bioassays to serve for current and future reference.
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Affiliation(s)
- Patrycja Nowak-Sliwinska
- Molecular Pharmacology Group, School of Pharmaceutical Sciences, Faculty of Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, CMU, 1211, Geneva 4, Switzerland.
- Translational Research Center in Oncohaematology, University of Geneva, Geneva, Switzerland.
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Biology Program, University of Helsinki, Helsinki, Finland
| | - Elizabeth Allen
- Laboratory of Tumor Microenvironment and Therapeutic Resistance, Department of Oncology, VIB-Center for Cancer Biology, KU Leuven, Louvain, Belgium
| | - Andrey Anisimov
- Wihuri Research Institute and Translational Cancer Biology Program, University of Helsinki, Helsinki, Finland
| | - Alfred C Aplin
- Department of Pathology, University of Washington, Seattle, WA, USA
| | | | - Hellmut G Augustin
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
- Division of Vascular Oncology and Metastasis Research, German Cancer Research Center, Heidelberg, Germany
- German Cancer Consortium, Heidelberg, Germany
| | - David O Bates
- Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham, UK
| | - Judy R van Beijnum
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - R Hugh F Bender
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - Gabriele Bergers
- Laboratory of Tumor Microenvironment and Therapeutic Resistance, Department of Oncology, VIB-Center for Cancer Biology, KU Leuven, Louvain, Belgium
- Department of Neurological Surgery, Brain Tumor Research Center, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA
| | - Andreas Bikfalvi
- Angiogenesis and Tumor Microenvironment Laboratory (INSERM U1029), University Bordeaux, Pessac, France
| | - Joyce Bischoff
- Vascular Biology Program and Department of Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Barbara C Böck
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
- Division of Vascular Oncology and Metastasis Research, German Cancer Research Center, Heidelberg, Germany
- German Cancer Consortium, Heidelberg, Germany
| | - Peter C Brooks
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Federico Bussolino
- Department of Oncology, University of Torino, Turin, Italy
- Candiolo Cancer Institute-FPO-IRCCS, 10060, Candiolo, Italy
| | - Bertan Cakir
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, Leuven, Belgium
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Daniel Castranova
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Anca M Cimpean
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Ondine Cleaver
- Department of Molecular Biology, Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - George Coukos
- Ludwig Institute for Cancer Research, Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - George E Davis
- Department of Medical Pharmacology and Physiology, University of Missouri, School of Medicine and Dalton Cardiovascular Center, Columbia, MO, USA
| | - Michele De Palma
- School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
| | - Anna Dimberg
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Ruud P M Dings
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | | | - Andrew C Dudley
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
- Emily Couric Cancer Center, The University of Virginia, Charlottesville, VA, USA
| | - Neil P Dufton
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Sarah-Maria Fendt
- Laboratory of Cellular Metabolism and Metabolic Regulation, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Cellular Metabolism and Metabolic Regulation, Department of Oncology, KU Leuven and Leuven Cancer Institute, Leuven, Belgium
| | | | - Marcus Fruttiger
- Institute of Ophthalmology, University College London, London, UK
| | - Dai Fukumura
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Bart Ghesquière
- Metabolomics Expertise Center, VIB Center for Cancer Biology, VIB, Leuven, Belgium
- Department of Oncology, Metabolomics Expertise Center, KU Leuven, Leuven, Belgium
| | - Yan Gong
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Robert J Griffin
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Adrian L Harris
- Molecular Oncology Laboratories, Oxford University Department of Oncology, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, UK
| | - Christopher C W Hughes
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - Nan W Hultgren
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | | | - Melita Irving
- Ludwig Institute for Cancer Research, Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Rakesh K Jain
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Joanna Kalucka
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, Leuven, Belgium
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Robert S Kerbel
- Department of Medical Biophysics, Biological Sciences Platform, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
| | - Jan Kitajewski
- Department of Physiology and Biophysics, University of Illinois, Chicago, IL, USA
| | - Ingeborg Klaassen
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Hynda K Kleinmann
- The George Washington University School of Medicine, Washington, DC, USA
| | - Pieter Koolwijk
- Department of Ophthalmology, University of Lausanne, Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, Lausanne, Switzerland
| | - Elisabeth Kuczynski
- Department of Medical Biophysics, Biological Sciences Platform, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
| | - Brenda R Kwak
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | | | - Juan M Melero-Martin
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Lance L Munn
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Roberto F Nicosia
- Department of Pathology, University of Washington, Seattle, WA, USA
- Pathology and Laboratory Medicine Service, VA Puget Sound Health Care System, Seattle, WA, USA
| | - Agnes Noel
- Laboratory of Tumor and Developmental Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Jussi Nurro
- Department of Biotechnology and Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Anna-Karin Olsson
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Tatiana V Petrova
- Department of oncology UNIL-CHUV, Ludwig Institute for Cancer Research Lausanne, Lausanne, Switzerland
| | - Kristian Pietras
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund, Sweden
| | - Roberto Pili
- Genitourinary Program, Indiana University-Simon Cancer Center, Indianapolis, IN, USA
| | - Jeffrey W Pollard
- Medical Research Council Centre for Reproductive Health, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, UK
| | - Mark J Post
- Department of Physiology, Maastricht University, Maastricht, The Netherlands
| | - Paul H A Quax
- Einthoven Laboratory for Experimental Vascular Medicine, Department Surgery, LUMC, Leiden, The Netherlands
| | - Gabriel A Rabinovich
- Laboratory of Immunopathology, Institute of Biology and Experimental Medicine, National Council of Scientific and Technical Investigations (CONICET), Buenos Aires, Argentina
| | - Marius Raica
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Anna M Randi
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
- National Cancer Institute "Giovanni Paolo II", Bari, Italy
| | - Curzio Ruegg
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Reinier O Schlingemann
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
- Department of Ophthalmology, University of Lausanne, Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, Lausanne, Switzerland
| | - Stefan Schulte-Merker
- Institute of Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU, Münster, Germany
| | - Lois E H Smith
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA, USA
| | - Jonathan W Song
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH, USA
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Steven A Stacker
- Tumour Angiogenesis and Microenvironment Program, Peter MacCallum Cancer Centre and The Sir Peter MacCallum, Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Jimmy Stalin
- Institute of Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU, Münster, Germany
| | - Amber N Stratman
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Maureen Van de Velde
- Laboratory of Tumor and Developmental Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Victor W M van Hinsbergh
- Department of Ophthalmology, University of Lausanne, Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, Lausanne, Switzerland
| | - Peter B Vermeulen
- HistoGeneX, Antwerp, Belgium
- Translational Cancer Research Unit, GZA Hospitals, Sint-Augustinus & University of Antwerp, Antwerp, Belgium
| | - Johannes Waltenberger
- Medical Faculty, University of Münster, Albert-Schweitzer-Campus 1, Münster, Germany
| | - Brant M Weinstein
- Division of Developmental Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Hong Xin
- University of California, San Diego, La Jolla, CA, USA
| | - Bahar Yetkin-Arik
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Seppo Yla-Herttuala
- Department of Biotechnology and Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Mervin C Yoder
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Arjan W Griffioen
- Angiogenesis Laboratory, Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
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15
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Tian FY, Wang XM, Xie C, Zhao B, Niu Z, Fan L, Hivert MF, Chen WQ. Placental surface area mediates the association between FGFR2 methylation in placenta and full-term low birth weight in girls. Clin Epigenetics 2018; 10:39. [PMID: 29588807 PMCID: PMC5863829 DOI: 10.1186/s13148-018-0472-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 03/14/2018] [Indexed: 12/14/2022] Open
Abstract
Background Fibroblast growth factor receptor 2 (FGFR2) gene encodes a protein of the fibroblast growth factor receptor family. FGFR2 gene expression is associated with the regulation of implantation process of placenta which plays a vital role in fetal growth. DNA methylation is widely known as a mechanism of fetal growth. However, it is unclear whether and how DNA methylation of FGFR2 gene in the placenta is associated with full-term low birth weight. This case-control study aims to explore the links between FGFR2 methylation in placenta and full-term low birth weight and to further examine the mediation effect of placental surface area on this association. Results We conducted analyses for each of the five valid CpG sites at FGFR2 in 165 mother-baby pairs (86 FT-LBW vs. 79 FT-NBW) and found that per one standard deviation increase in the DNA methylation of CpG 11 at FGFR2 was associated with 1.64-fold higher risk of full-term low birth weight (OR = 1.64, 95% CI = [1.07, 2.52]) and 0.18 standard deviation decrease in placental surface area (β = - 0.18; standard error = 0.08, p = 0.02). The mediation effect of placental surface area on the association between DNA methylation and full-term low birth weight was significant in girls (OR = 1.38, 95% CI = [1.05, 1.80]) but not in boys. The estimated mediation proportion was 48.38%. Conclusion Our findings suggested that placental surface area mediated the association between DNA methylation of FGFR2 in placenta and full-term low birth weight in a sex-specific manner. Our study supported the importance of placental epigenetic changes in placental development and fetal growth.
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Affiliation(s)
- Fu-Ying Tian
- 1Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Room 715, 74 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Xi-Meng Wang
- 1Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Room 715, 74 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Chuanbo Xie
- Department of Cancer Prevention Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Bo Zhao
- 3Children's Hospital Boston and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115 USA
| | - Zhongzheng Niu
- 4Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, State University of New York at Buffalo, 265 Farber Hall, Buffalo, NY 14214 USA
| | - Lijun Fan
- 1Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Room 715, 74 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Marie-France Hivert
- 5Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, 401 Park Drive, Suite 401, Boston, MA USA.,6Diabetes Center, Massachusetts General Hospital, 50 Staniford Street, Boston, MA USA.,7Department of Medicine, Université de Sherbrooke, 3001 12th Avenue North, Sherbrooke, Québec Canada.,8Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, 3001 12th Avenue North, wing 9, door 6, Sherbrooke, Québec Canada
| | - Wei-Qing Chen
- 1Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Room 715, 74 Zhongshan Road 2, Guangzhou, 510080 Guangdong China.,9Department of Information Management, Xinhua College, Sun Yat-sen University, Guangzhou, Guangdong China
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Pitter B, Werner AC, Montanez E. Parvins Are Required for Endothelial Cell-Cell Junctions and Cell Polarity During Embryonic Blood Vessel Formation. Arterioscler Thromb Vasc Biol 2018; 38:1147-1158. [PMID: 29567677 DOI: 10.1161/atvbaha.118.310840] [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] [Received: 09/29/2017] [Accepted: 03/05/2018] [Indexed: 02/01/2023]
Abstract
OBJECTIVE During vascular development, integrin-mediated signaling regulates the formation and stabilization of cell-cell junctions, which are required for endothelial cell (EC) apical-basal polarity and proper deposition of the vascular basement membrane. Parvins are actin-binding proteins that facilitate the interaction of integrins with the actin cytoskeleton. The endothelium expresses 2 parvin isoforms: α-pv (α-parvin) and β-pv (β-parvin). Recently, we have shown that α-pv is critical for vessel growth and vessel stability at late embryonic developmental stages. The role of parvins during early embryonic development is unknown. APPROACH AND RESULTS To investigate the role of endothelial parvins in the developing vasculature, we generated mice with ECs lacking both parvin isoforms by deleting α-pv in ECs in global β-pv-/- mice (α-pvΔEC;β-pv-/- mice). Here, we show that α-pvΔEC;β-pv-/- mice die around embryonic day 11.5 and exhibit hemorrhages, immature capillary beds, and severe vascular defects in the central nervous system, including reduced vessel branching, increased vessel diameter, and balloon-like hemorrhagic clusters of ECs. Vessels in α-pvΔEC;β-pv-/- embryos display disorganized cell-cell junctions, impaired endothelial apical-basal polarity, and discontinuous basement membranes. These vascular defects are accompanied by defective pericyte-vessel interaction. CONCLUSIONS Our results show that parvins are critical for the organization of endothelial cell-cell junctions, the establishment of endothelial apical-basal polarity, and the integrity of the basement membrane.
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Affiliation(s)
- Bettina Pitter
- From the Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig Maximilian University of Munich, Germany
| | - Ann-Cathrin Werner
- From the Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig Maximilian University of Munich, Germany
| | - Eloi Montanez
- From the Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig Maximilian University of Munich, Germany.
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Tracking cellular and molecular changes in a species-specific manner during experimental tumor progression in vivo. Oncotarget 2018; 9:16149-16162. [PMID: 29662633 PMCID: PMC5882324 DOI: 10.18632/oncotarget.24598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 02/21/2018] [Indexed: 01/29/2023] Open
Abstract
Hepatoblastoma (HBL) is a pediatric liver cancer with defined molecular alterations driving its progression. Here, we describe an animal model for HBL on the chick chorioallantoic membrane (CAM), which recapitulates relevant features of HBL in patients. Expression of classic tumor-associated proteins such as β-catenin, EpCAM and CK19 was maintained in acini-like organized tumors on CAM, as was synthesis of AFP, a tumor marker used for monitoring patient response. RNA sequencing revealed an unexpected molecular evolution of HBL cells on the CAM, with significant deregulation of more than 6,000 genes including more than half of all HOX genes. Bioinformatic analysis distinguish between tumor cell-expressed genes and chick genes, thereby shedding new light on the complex interactions taking place during HBL progression. Importantly, human tumor suppressive ribosomal genes were downregulated after implantation, whereas mitochondrial genes encoding for anti-apoptotic peptides were strongly induced in vivo. Meprin-1α expression was increased during evolution of CAM tumors and confirmed by immunohistochemistry. Cisplatin, a commonly used chemotherapeutic agent for HBL, showed significant anti-tumoral effects. Our results broaden the understanding of the molecular adaptation process of human cancer cells to the microenvironment and might help to elaborate novel therapeutic concepts for the treatment of this pediatric liver tumor.
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Graham TH. Prolylcarboxypeptidase (PrCP) inhibitors and the therapeutic uses thereof: a patent review. Expert Opin Ther Pat 2017; 27:1077-1088. [PMID: 28699813 DOI: 10.1080/13543776.2017.1349104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Prolylcarboxypeptidase (PrCP) is a serine protease that produces or degrades signaling proteins in several important pathways including the renin-angiotensin system (RAS), kallikrein-kinin system (KKS) and pro-opiomelanocortin (POMC) system. PrCP has the potential to be a therapeutic target for cardiovascular, inflammatory and metabolic diseases. Numerous classes of PrCP inhibitors have been developed by rational drug design and from high-throughput screening hits. These inhibitors have been tested in mouse models to assess their potential as new therapeutics. Areas Covered: This review covers the relevant studies that support PrCP as a target for drug discovery. All the significant patent applications and primary literature concerning the development of PrCP inhibitors are discussed. Expert Opinion: The pathways where PrCP is known to operate are complex and many aspects remain to be characterized. Many potent inhibitors of PrCP have been tested in vivo. The variable results obtained from in vivo studies with PrCP inhibitors suggest that additional understanding of the biochemistry and the required therapeutic inhibitor levels is necessary. Additional fundamental research into the signaling pathways is likely required before the true therapeutic potential of PrCP inhibition will be realized.
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Affiliation(s)
- Thomas H Graham
- a Merck Research Laboratories , Merck & Co., Inc ., Kenilworth , NJ , USA
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Liu X, Liu Y, Li X, Zhao J, Geng Y, Ning W. Follistatin like-1 (Fstl1) is required for the normal formation of lung airway and vascular smooth muscle at birth. PLoS One 2017; 12:e0177899. [PMID: 28574994 PMCID: PMC5456059 DOI: 10.1371/journal.pone.0177899] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 05/04/2017] [Indexed: 12/20/2022] Open
Abstract
Fstl1, a secreted protein of the BMP antagonist class, has been implicated in the regulation of lung development and alveolar maturation. Here we generated a Fstl1-lacZ reporter mouse line as well as a Fstl1 knockout allele. We localized Fstl1 transcript in lung smooth muscle cells and identified Fstl1 as essential regulator of lung smooth muscle formation. Deletion of Fstl1 in mice led to postnatal death as a result of respiratory failure due to multiple defects in lung development. Analysis of the mutant phenotype showed impaired airway smooth muscle (SM) manifested as smaller SM line in trachea and discontinued SM surrounding bronchi, which were associated with decreased transcriptional factors myocardin/serum response factor (SRF) and impaired differentiation of SM cells. Fstl1 knockout mice also displayed abnormal vasculature SM manifested as hyperplasia SM in pulmonary artery. This study indicates a pivotal role for Fstl1 in early stage of lung airway smooth muscle development.
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Affiliation(s)
- Xue Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yingying Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Xiaohe Li
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Jing Zhao
- Model Animal Research Center, Nanjing University, Nanjing, China
| | - Yan Geng
- Model Animal Research Center, Nanjing University, Nanjing, China
- School of Pharmaceutical Science, Jiangnan University, Wuxi, Jiangsu, China
| | - Wen Ning
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
- * E-mail:
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Ribatti D. The chick embryo chorioallantoic membrane (CAM) assay. Reprod Toxicol 2016; 70:97-101. [PMID: 27832950 DOI: 10.1016/j.reprotox.2016.11.004] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/31/2016] [Accepted: 11/04/2016] [Indexed: 01/27/2023]
Abstract
During avian development the mesodermal layers of the allantois and chorion fuse to form the chorioallantoic membrane (CAM). This structure rapidly expands generating a rich vascular network that provides an interface for gas and waste exchange. The CAM allows to study tissue grafts, tumor growth and metastasis, drugs delivery and toxicologic analysis, and angiogenic and anti-angiogenic molecules. The CAM is relatively simple, quick, and low-cost model that allows screening of a large number of pharmacological samples in a short time; does not require administrative procedures for obtaining ethics committee approval for animal experimentation. Moreover, being naturally immunodeficient, the chick embryo may receive transplantations from different tissues and species, without immune responses.
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Affiliation(s)
- Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy, National Cancer Institute "Giovanni Paolo II", Bari, Italy.
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FSTL1 as a Potential Mediator of Exercise-Induced Cardioprotection in Post-Myocardial Infarction Rats. Sci Rep 2016; 6:32424. [PMID: 27561749 PMCID: PMC5000295 DOI: 10.1038/srep32424] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 08/05/2016] [Indexed: 12/26/2022] Open
Abstract
Exercise training has been reported to ameliorate heart dysfunction in both humans and animals after myocardial infarction (MI), but the underlying mechanisms are poorly understood. Follistatin-like1 (FSTL1) is a cardioprotective factor against ischemic injury and is induced in cardiomyocytes and skeletal muscle in ischemic and hypoxic conditions. To test the hypothesis that FSTL1 may be a molecular link between exercise and improved heart function post MI, we subjected MI-rats, induced by left coronary artery ligation, to two modes of exercise: intermittent aerobic exercise (IAE) or mechanical vibration training (MVT), for four weeks and examined the relevance of FSTL1 to exercise-mediated cardiac effects. Exercise improved the functional performance, reduced fibrosis of MI-hearts and induced FSTL1 expression, the TGFβ-Smad2/3 signaling and angiogenesis in myocardium. In gastrocnemius, exercise increased the cross-sectional area of myocytes and FSTL1 expression. Importantly, exercise increased circulating FSTL1 levels, which were positively correlated with the skeletal muscle FSTL1 expression and negatively correlated with heart fibrosis. Overall, the IAE was more effective than that of MVT in cardioprotection. Finally, exogenous FSTL1 administration directly improved angiogenesis as well as functionality of post-MI hearts. Taken together, we have demonstrated that FSTL1 is a potential mediator of exercise-induced cardioprotection in post-MI rats.
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Ribatti D. The chick embryo chorioallantoic membrane (CAM). A multifaceted experimental model. Mech Dev 2016; 141:70-77. [DOI: 10.1016/j.mod.2016.05.003] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/07/2016] [Accepted: 05/09/2016] [Indexed: 01/24/2023]
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McCallie BR, Parks JC, Patton AL, Griffin DK, Schoolcraft WB, Katz-Jaffe MG. Hypomethylation and Genetic Instability in Monosomy Blastocysts May Contribute to Decreased Implantation Potential. PLoS One 2016; 11:e0159507. [PMID: 27434648 PMCID: PMC4951028 DOI: 10.1371/journal.pone.0159507] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 07/05/2016] [Indexed: 02/03/2023] Open
Abstract
DNA methylation is a key epigenetic mechanism responsible for gene regulation, chromatin remodeling, and genome stability, playing a fundamental role during embryonic development. The aim of this study was to determine if these epigenetic marks are associated with chromosomal aneuploidy in human blastocysts. Surplus, cryopreserved blastocysts that were donated to research with IRB consent were chosen with varying chromosomal aneuploidies and respective implantation potential: monosomies and trisomies 7, 11, 15, 21, and 22. DNA methylation analysis was performed using the Illumina Infinium HumanMethylation450 BeadChip (~485,000 CpG sites). The methylation profiles of these human blastocysts were found to be similar across all samples, independent of chromosome constitution; however, more detailed examination identified significant hypomethylation in the chromosome involved in the monosomy. Real-time PCR was also performed to determine if downstream messenger RNA (mRNA) was affected for genes on the monosomy chromosome. Gene dysregulation was observed for monosomy blastocysts within significant regions of hypo-methylation (AVEN, CYFIP1, FAM189A1, MYO9A, ADM2, PACSIN2, PARVB, and PIWIL3) (P < 0.05). Additional analysis was performed to examine the gene expression profiles of associated methylation regulators including: DNA methyltransferases (DNMT1, DNMT3A, DNMT3B, DNMT3L), chromatin modifying regulators (CSNK1E, KDM1, PRKCA), and a post-translational modifier (PRMT5). Decreased RNA transcription was confirmed for each DNMT, and the regulators that impact DNMT activity, for only monosomy blastocysts (P < 0.05). In summary, monosomy blastocysts displayed hypomethylation for the chromosome involved in the error, as well as transcription alterations of associated developmental genes. Together, these modifications may be contributing to genetic instability and therefore be responsible for the limited implantation potential observed for full monosomy blastocysts.
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Affiliation(s)
- Blair R. McCallie
- National Foundation for Fertility Research, Lone Tree, Colorado, 80124, United States of America
- School of Biosciences, University of Kent, Canterbury, CT2 7NJ, United Kingdom
- * E-mail:
| | - Jason C. Parks
- National Foundation for Fertility Research, Lone Tree, Colorado, 80124, United States of America
- School of Biosciences, University of Kent, Canterbury, CT2 7NJ, United Kingdom
| | - Alyssa L. Patton
- National Foundation for Fertility Research, Lone Tree, Colorado, 80124, United States of America
| | - Darren K. Griffin
- School of Biosciences, University of Kent, Canterbury, CT2 7NJ, United Kingdom
| | - William B. Schoolcraft
- Colorado Center for Reproductive Medicine, Lone Tree, Colorado, 80124, United States of America
| | - Mandy G. Katz-Jaffe
- National Foundation for Fertility Research, Lone Tree, Colorado, 80124, United States of America
- Colorado Center for Reproductive Medicine, Lone Tree, Colorado, 80124, United States of America
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Mouillet JF, Mishima T, Paffaro AMDA, Parks TW, Ziegler JA, Chu T, Sadovsky Y. The expression and post-transcriptional regulation of FSTL1 transcripts in placental trophoblasts. Placenta 2015; 36:1231-8. [PMID: 26386648 DOI: 10.1016/j.placenta.2015.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 09/07/2015] [Accepted: 09/07/2015] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Follistatin-like-1 (FSTL1) is a widely expressed secreted protein with diverse but poorly understood functions. Originally described as a pro-inflammatory molecule, it has recently been reported to play a role in signaling pathways that regulate development and homeostasis. Distinctively, FSTL1 harbors within its 3'-UTR the sequence encoding microRNA-198 (miR-198), shown to be inversely regulated relative to FSTL1 expression and to exhibit opposite actions on cellular processes such as cell migration. We sought to investigate the expression of FSTL1 and to assess its interplay with miR-198 in human trophoblasts. METHODS We used a combination of northern blot analyses, quantitative PCR, small RNA sequencing, western blot and immunohistochemistry to characterize FSTL1 and miR-198 expression in placental trophoblasts. We also used reporter assays to examine the post-transcriptional regulation of FSTL1 and assess its putative regulation by miR-198. RESULTS We detected the expression of FSTL1 transcript in both the human extravillous trophoblast line HTR-8/SVneo and in primary term human villous trophoblasts. We also found that the expression of FSTL1 was largely restricted to extravillous trophoblasts. Hypoxia enhanced the expression of FSTL1 protein in cultured primary villous trophoblasts. Interestingly, we did not detect any evidence for expression or function of mature miR-198 in human trophoblasts. DISCUSSION Our data indicate that placental FSTL1 is expressed particularly in extravillous trophoblasts. We also found no evidence for placental expression of miR-198, or for its regulation of FSTL1, implying that the post-transcriptional regulation of FSTL1 by miR-198 is tissue specific.
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Affiliation(s)
- Jean-Francois Mouillet
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, PA, USA
| | - Takuya Mishima
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, PA, USA
| | - Andrea Mollica do Amarante Paffaro
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA; Instituto de Ciencias Biologicas, Universidade Federal de Alfenas (UNIFAL-MG), Alfenas, MG, Brazil
| | - Tony W Parks
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA; Department of Pathology, University of Pittsburgh, PA, USA
| | - Judy A Ziegler
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA
| | - Tianjiao Chu
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, PA, USA
| | - Yoel Sadovsky
- Magee-Womens Research Institute, University of Pittsburgh, PA, USA; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, PA, USA; Department of Microbiology and Molecular Genetics, University of Pittsburgh, PA, USA.
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Identification of loci and genes for growth related traits from a genome-wide association study in a slow- × fast-growing broiler chicken cross. Genes Genomics 2015. [DOI: 10.1007/s13258-015-0314-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Exertier P, Javerzat S, Wang B, Franco M, Herbert J, Platonova N, Winandy M, Pujol N, Nivelles O, Ormenese S, Godard V, Becker J, Bicknell R, Pineau R, Wilting J, Bikfalvi A, Hagedorn M. Impaired angiogenesis and tumor development by inhibition of the mitotic kinesin Eg5. Oncotarget 2014; 4:2302-16. [PMID: 24327603 PMCID: PMC3926828 DOI: 10.18632/oncotarget.1490] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Kinesin motor proteins exert essential cellular functions in all eukaryotes. They control mitosis, migration and intracellular transport through interaction with microtubules. Small molecule inhibitors of the mitotic kinesin KiF11/Eg5 are a promising new class of anti-neoplastic agents currently evaluated in clinical cancer trials for solid tumors and hematological malignancies. Here we report induction of Eg5 and four other mitotic kinesins including KIF20A/Mklp2 upon stimulation of in vivo angiogenesis with vascular endothelial growth factor-A (VEGF-A). Expression analyses indicate up-regulation of several kinesin-encoding genes predominantly in lymphoblasts and endothelial cells. Chemical blockade of Eg5 inhibits endothelial cell proliferation and migration in vitro. Mitosis-independent vascular outgrowth in aortic ring cultures is strongly impaired after Eg5 or Mklp2 protein inhibition. In vivo, interfering with KIF11/Eg5 function causes developmental and vascular defects in zebrafish and chick embryos and potent inhibition of tumor angiogenesis in experimental tumor models. Besides blocking tumor cell proliferation, impairing endothelial function is a novel mechanism of action of kinesin inhibitors.
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Affiliation(s)
- Prisca Exertier
- University Bordeaux, LAMC, UMR 1029, F-33405 Talence, France
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Turtoi A, Blomme A, Bianchi E, Maris P, Vannozzi R, Naccarato AG, Delvenne P, De Pauw E, Bevilacqua G, Castronovo V. Accessibilome of human glioblastoma: collagen-VI-alpha-1 is a new target and a marker of poor outcome. J Proteome Res 2014; 13:5660-9. [PMID: 25325876 DOI: 10.1021/pr500657w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Functional targeted therapy has unfortunately failed to improve the outcome of glioblastoma patients. Success stories evidenced by the use of antibody-drug conjugates in other tumor types are encouraging, but targets specific to glioblastoma and accessible through the bloodstream remain scarce. In the current work, we have identified and characterized novel and accessible proteins using an innovative proteomic approach on six human glioblastomas; the corresponding data have been deposited in the PRIDE database identifier PXD001398. Among several clusters of uniquely expressed proteins, we highlight collagen-VI-alpha-1 (COL6A1) as a highly expressed tumor biomarker with low levels in most normal tissues. Immunohistochemical analysis of glioma samples from 61 patients demonstrated that COL6A1 is a significant and consistent feature of high-grade glioma. Deposits of COL6A1 were evidenced in the perivascular regions of the tumor-associated vasculature and in glioma cells found in pseudopalisade structures. Retrospective analysis of public gene-expression data sets from over 300 glioma patients demonstrated a significant correlation of poor patient outcome and high COL6A1 expression. In a proof-of-concept study, we use chicken chorioallantoic membrane in vivo model to show that COL6A1 is a reachable target for IV-injected antibodies. The present data warrant further development of human COL6A1 antibodies for assessing the quantitative biodistribution in the preclinical tumor models.
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Affiliation(s)
- Andrei Turtoi
- Metastasis Research Laboratory, GIGA-Cancer and ‡Department of Pathology, University of Liege , Bat. B23, Liege 4000, Belgium
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The chicken chorioallantoic membrane model in biology, medicine and bioengineering. Angiogenesis 2014; 17:779-804. [PMID: 25138280 DOI: 10.1007/s10456-014-9440-7] [Citation(s) in RCA: 289] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 08/13/2014] [Indexed: 01/16/2023]
Abstract
The chicken chorioallantoic membrane (CAM) is a simple, highly vascularized extraembryonic membrane, which performs multiple functions during embryonic development, including but not restricted to gas exchange. Over the last two decades, interest in the CAM as a robust experimental platform to study blood vessels has been shared by specialists working in bioengineering, development, morphology, biochemistry, transplant biology, cancer research and drug development. The tissue composition and accessibility of the CAM for experimental manipulation, makes it an attractive preclinical in vivo model for drug screening and/or for studies of vascular growth. In this article we provide a detailed review of the use of the CAM to study vascular biology and response of blood vessels to a variety of agonists. We also present distinct cultivation protocols discussing their advantages and limitations and provide a summarized update on the use of the CAM in vascular imaging, drug delivery, pharmacokinetics and toxicology.
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Dynamic induction of pro-angiogenic milieu after transplantation of marrow-derived mesenchymal stem cells in experimental myocardial infarction. Int J Cardiol 2014; 173:453-66. [DOI: 10.1016/j.ijcard.2014.03.008] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 01/18/2014] [Accepted: 03/09/2014] [Indexed: 12/13/2022]
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Abstract
In this issue of Blood, Adams et al provide evidence for an important novel function of prolylcarboxypeptidase (PRCP), or angiotensinase C, in endothelial cell physiology and angiogenesis.
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Xu Z, Nie Q, Zhang X. Overview of Genomic Insights into Chicken Growth Traits Based on Genome-Wide Association Study and microRNA Regulation. Curr Genomics 2013; 14:137-46. [PMID: 24082823 PMCID: PMC3637678 DOI: 10.2174/1389202911314020006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 01/28/2013] [Accepted: 01/29/2013] [Indexed: 01/09/2023] Open
Abstract
Over the two past decades, a significant number of studies have observed animal growth traits to examine animal genetic mechanisms due to their ease of measurement and high heritability. Chicken which has a significant impact on fundamental biology is a major source of protein worldwide, making it an ideal model for examining animal growth trait development. The genetic mechanisms of chicken growth traits have been studied using quantitative trait loci mapping through genome-scan and candidate gene approaches, genome-wide association studies (GWAS), comparative genomic strategies, microRNA (miRNA) regulation of growth development analysis, and epigenomic analysis. This review focuses on chicken GWAS and miRNA regulation of growth traits. Several recently published GWAS reports showed that most genome-wide significant single nucleotide polymorphisms are located on chromosomes 1 and 4 in chickens. Chicken growth, particularly skeletal muscle growth and development, is greatly regulated by miRNA. Using dwarf and normal chickens, let-7b was found to be involved in determining chicken dwarf phenotypes by regulating growth hormone receptor gene expression.
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Affiliation(s)
- Zhenqiang Xu
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, Guang-dong, China
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Verschuren JJW, Trompet S, Sampietro ML, Heijmans BT, Koch W, Kastrati A, Houwing-Duistermaat JJ, Slagboom PE, Quax PHA, Jukema JW. Pathway analysis using genome-wide association study data for coronary restenosis--a potential role for the PARVB gene. PLoS One 2013; 8:e70676. [PMID: 23950981 PMCID: PMC3739784 DOI: 10.1371/journal.pone.0070676] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/21/2013] [Indexed: 12/20/2022] Open
Abstract
Background Coronary restenosis after percutaneous coronary intervention (PCI) still remains a significant limitation of the procedure. The causative mechanisms of restenosis have not yet been fully identified. The goal of the current study was to perform gene-set analysis of biological pathways related to inflammation, proliferation, vascular function and transcriptional regulation on coronary restenosis to identify novel genes and pathways related to this condition. Methods The GENetic DEterminants of Restenosis (GENDER) databank contains genotypic data of 556,099SNPs of 295 cases with restenosis and 571 matched controls. Fifty-four pathways, related to known restenosis-related processes, were selected. Gene-set analysis was performed using PLINK, GRASS and ALIGATOR software. Pathways with a p<0.01 were fine-mapped and significantly associated SNPs were analyzed in an independent replication cohort. Results Six pathways (cell-extracellular matrix (ECM) interactions pathway, IL2 signaling pathway, IL6 signaling pathway, platelet derived growth factor pathway, vitamin D receptor pathway and the mitochondria pathway) were significantly associated in one or two of the software packages. Two SNPs in the cell-ECM interactions pathway were replicated in an independent restenosis cohort. No replication was obtained for the other pathways. Conclusion With these results we demonstrate a potential role of the cell-ECM interactions pathway in the development of coronary restenosis. These findings contribute to the increasing knowledge of the genetic etiology of restenosis formation and could serve as a hypothesis-generating effort for further functional studies.
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Affiliation(s)
| | - Stella Trompet
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - M. Lourdes Sampietro
- Department Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Interuniversity Cardiology Institute of the Netherlands (ICIN), Utrecht, The Netherlands
| | - Bastiaan T. Heijmans
- Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
- Netherlands Consortium for Healthy Ageing, Leiden University Medical Center, Leiden, The Netherlands
| | - Werner Koch
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Adnan Kastrati
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | | | - P. Eline Slagboom
- Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
- Netherlands Consortium for Healthy Ageing, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul H. A. Quax
- Department of Vascular Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - J. Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
- Netherlands Consortium for Healthy Ageing, Leiden University Medical Center, Leiden, The Netherlands
- Durrer Center for Cardiogenetic Research, Amsterdam, The Netherlands
- Interuniversity Cardiology Institute of the Netherlands (ICIN), Utrecht, The Netherlands
- * E-mail:
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Curty N, Kubitschek-Barreira PH, Neves GW, Gomes D, Pizzatti L, Abdelhay E, Souza GHMF, Lopes-Bezerra LM. Discovering the infectome of human endothelial cells challenged with Aspergillus fumigatus applying a mass spectrometry label-free approach. J Proteomics 2013; 97:126-40. [PMID: 23886778 DOI: 10.1016/j.jprot.2013.07.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 06/18/2013] [Accepted: 07/01/2013] [Indexed: 12/13/2022]
Abstract
UNLABELLED Blood vessel invasion is a key feature of invasive aspergillosis. This angioinvasion process contributes to tissue thrombosis, which can impair the access of leukocytes and antifungal drugs to the site of infection. It has been demonstrated that human umbilical vein endothelial cells (HUVECs) are activated and assume a prothrombotic phenotype following contact with Aspergillus fumigatus hyphae or germlings, a process that is independent of fungus viability. However, the molecular mechanisms by which this pathogen can activate endothelial cells, together with the endothelial pathways that are involved in this process, remain unknown. Using a label-free approach by High Definition Mass Spectrometry (HDMS(E)), differentially expressed proteins were identified during HUVEC-A. fumigatus interaction. Among these, 89 proteins were determined to be up- or down-regulated, and another 409 proteins were exclusive to one experimental condition: the HUVEC control or HUVEC:AF interaction. The in silico predictions provided a general view of which biological processes and/or pathways were regulated during HUVEC:AF interaction, and they mainly included cell signaling, immune response and hemostasis pathways. This work describes the first global proteomic analysis of HUVECs following interaction with A. fumigatus germlings, the fungus morphotype that represents the first step of invasion and dissemination within the host. BIOLOGICAL SIGNIFICANCE A. fumigatus causes the main opportunistic invasive fungal infection related to neutropenic hematologic patients. One of the key steps during the establishment of invasive aspergillosis is angioinvasion but the mechanism associated with the interaction of A. fumigatus with the vascular endothelium remains unknown. The identification of up- and down-regulated proteins expressed by human endothelial cells in response to the fungus infection can contribute to reveal the mechanism of endothelial response and, to understand the physiopathology of this high mortality disease. This article is part of a Special Issue entitled: Trends in Microbial Proteomics.
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Affiliation(s)
- N Curty
- Laboratório de Micologia Celular e Proteômica, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - P H Kubitschek-Barreira
- Laboratório de Micologia Celular e Proteômica, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - G W Neves
- Laboratório de Micologia Celular e Proteômica, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - D Gomes
- Laboratório de Micologia Celular e Proteômica, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - L Pizzatti
- Laboratório de Células-Tronco, Divisão de laboratórios do CEMO, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - E Abdelhay
- Laboratório de Células-Tronco, Divisão de laboratórios do CEMO, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - G H M F Souza
- MS Applications Research and Development Laboratory, Waters Corporation, São Paulo, Brazil
| | - L M Lopes-Bezerra
- Laboratório de Micologia Celular e Proteômica, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil.
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Abstract
Prolylcarboxypeptidase (PRCP) is associated with leanness, hypertension, and thrombosis. PRCP-depleted mice have injured vessels with reduced Kruppel-like factor (KLF)2, KLF4, endothelial nitric oxide synthase (eNOS), and thrombomodulin. Does PRCP influence vessel growth, angiogenesis, and injury repair? PRCP depletion reduced endothelial cell growth, whereas transfection of hPRCP cDNA enhanced cell proliferation. Transfection of hPRCP cDNA, or an active site mutant (hPRCPmut) rescued reduced cell growth after PRCP siRNA knockdown. PRCP-depleted cells migrated less on scratch assay and murine PRCP(gt/gt) aortic segments had reduced sprouting. Matrigel plugs in PRCP(gt/gt) mice had reduced hemoglobin content and angiogenic capillaries by platelet endothelial cell adhesion molecule (PECAM) and NG2 immunohistochemistry. Skin wounds on PRCP(gt/gt) mice had delayed closure and reepithelialization with reduced PECAM staining, but increased macrophage infiltration. After limb ischemia, PRCP(gt/gt) mice also had reduced reperfusion of the femoral artery and angiogenesis. On femoral artery wire injury, PRCP(gt/gt) mice had increased neointimal formation, CD45 staining, and Ki-67 expression. Alternatively, combined PRCP(gt/gt) and MRP-14(-/-) mice were protected from wire injury with less neointimal thickening, leukocyte infiltration, and cellular proliferation. PRCP regulates cell growth, angiogenesis, and the response to vascular injury. Combined with its known roles in blood pressure and thrombosis control, PRCP is positioned as a key regulator of vascular homeostasis.
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Wierzbicki M, Sawosz E, Grodzik M, Prasek M, Jaworski S, Chwalibog A. Comparison of anti-angiogenic properties of pristine carbon nanoparticles. NANOSCALE RESEARCH LETTERS 2013; 8:195. [PMID: 23618362 PMCID: PMC3644273 DOI: 10.1186/1556-276x-8-195] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 04/15/2013] [Indexed: 05/13/2023]
Abstract
Angiogenesis is vital for tumour formation, development and metastasis. Recent reports show that carbon nanomaterials inhibit various angiogenic signalling pathways and, therefore, can be potentially used in anti-angiogenic therapy. In the present study, we compared the effect of different carbon nanomaterials on blood vessel development. Diamond nanoparticles, graphite nanoparticles, graphene nanosheets, multi-wall nanotubes and C60 fullerenes were evaluated for their angiogenic activities using the in ovo chick embryo chorioallantoic membrane model. Diamond nanoparticles and multi-wall nanotubes showed the greatest anti-angiogenic properties. Interestingly, fullerene exhibited the opposite effect, increasing blood vessel development, while graphite nanoparticles and graphene had no effect. Subsequently, protein levels of pro-angiogenic growth factor receptors were analysed, showing that diamond nanoparticles decreased the expression of vascular endothelial growth factor receptor. These results provide new insights into the biological activity of carbon nanomaterials and emphasise the potential use of multi-wall nanotubes and diamond nanoparticles in anti-angiogenic tumour therapy.
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Affiliation(s)
- Mateusz Wierzbicki
- Division of Biotechnology and Biochemistry of Nutrition, Warsaw University of Life Sciences, Warsaw, Poland
| | - Ewa Sawosz
- Division of Biotechnology and Biochemistry of Nutrition, Warsaw University of Life Sciences, Warsaw, Poland
| | - Marta Grodzik
- Division of Biotechnology and Biochemistry of Nutrition, Warsaw University of Life Sciences, Warsaw, Poland
| | - Marta Prasek
- Division of Biotechnology and Biochemistry of Nutrition, Warsaw University of Life Sciences, Warsaw, Poland
| | - Slawomir Jaworski
- Division of Biotechnology and Biochemistry of Nutrition, Warsaw University of Life Sciences, Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen, Groennegaardsvej 3, Frederiksberg, Copenhagen, 1870, Denmark
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Sharma B, Albig AR. Matrix Gla protein reinforces angiogenic resolution. Microvasc Res 2013; 85:24-33. [PMID: 23110920 PMCID: PMC3629274 DOI: 10.1016/j.mvr.2012.10.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 10/01/2012] [Accepted: 10/19/2012] [Indexed: 12/18/2022]
Abstract
Matrix Gla Protein (MGP) is an ECM molecule commonly associated with dysfunctions of large blood vessels such as arteriosclerosis and atherosclerosis. However, the exact role of MGP in the microvasculature is not clear. Utilizing a mouse MGP knockout model we found that MGP suppresses angiogenic sprouting from mouse aorta restricts microvascular density in cardiac and skeletal muscle, and is an endogenous inhibitor of tumor angiogenesis. Similarly, morpholino based knockdown of MGP in zebrafish embryos caused a progressive loss of luminal structures in intersegmental vessels, a phenotype reminiscent of Dll4/Notch inhibition. Accordingly, MGP suppressed Notch-dependent Hes-1 promoter activity and expression of Jagged1 mRNA relative to Dll4 mRNA. However, inhibition of BMP but not Notch or VEGF signaling reversed the excessive angiogenic sprouting phenotype of MGP knockout aortic rings suggesting that MGP may normally suppress angiogenic sprouting by blocking BMP signaling. Collectively, these results suggest that MGP is a multi-functional inhibitor of normal and abnormal angiogenesis that may function by coordinating with both Notch and BMP signaling pathways.
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Affiliation(s)
- Bikram Sharma
- Department of Biology, Indiana State University, Terre Haute, IN 47809 USA
| | - Allan R. Albig
- Department of Biology, Boise State University, Boise ID. 83725
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Fergelot P, Bernhard JC, Soulet F, Kilarski WW, Léon C, Courtois N, Deminière C, Herbert JMJ, Antczak P, Falciani F, Rioux-Leclercq N, Patard JJ, Ferrière JM, Ravaud A, Hagedorn M, Bikfalvi A. The experimental renal cell carcinoma model in the chick embryo. Angiogenesis 2012; 16:181-94. [DOI: 10.1007/s10456-012-9311-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 09/29/2012] [Indexed: 02/06/2023]
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38
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Druyan S, Levi E. Reduced O2 concentration during CAM development--its effect on angiogenesis and gene expression in the broiler embryo CAM. Gene Expr Patterns 2012; 12:236-44. [PMID: 22609957 DOI: 10.1016/j.gep.2012.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Revised: 04/05/2012] [Accepted: 05/08/2012] [Indexed: 01/07/2023]
Abstract
Hypoxia during embryogenesis may induce changes in the development of some physiological regulatory systems, thereby causing permanent phenotypic changes in the embryo. Various levels of hypoxia at different time points during embryogenesis were found to affect both anatomical and physiological morphogenesis. These changes and adaptations depended on the timing, intensity, and duration of the hypoxic exposure and, moreover, were regulated by differential expression of developmentally important genes, mostly expressed in a stage- and time-dependent manner. Eggs incubated in a 17%-oxygen atmosphere for 12 h/d from E5 through E12 exhibited a clear and significant increase in the vascular area of the chorioallantoic membrane (CAM); an increase that was already significant within 12 h after the end of the 1st hypoxic exposures (E6). We used the combination of the genes, β-actin, RPLP0 and HPRT as a reference for gene expression profiling, in studying the expression levels of hypoxia-inducible factor 1-alpha (HIF1α), vascular endothelial growth factor alpha-2 (VEGF α 2), vascular endothelial growth factor receptor 2 (KDR), matrix metalloproteinase-2 (MMP2), and fibroblast growth factor 2 (FGF2), under normal and hypoxic conditions. In general, expression of all five investigated genes throughout the embryonic day of development had similar patterns of hypoxia-induced alterations. In E5.5 embryos, expression of HIF1α, MMP2, VEGFα2, and KDR was significantly higher in hypoxic embryos than in controls. In E6 embryos expression of HIF1α, VEGFα2, and FGF2 was significantly higher in hypoxic embryos than in controls. From E6.5 onward expression levels of the examined genes did not show any differences between hypoxic and control embryos. It can be concluded that in this experimental model, exposing broiler embryos to 17% O(2) from E5 to E7 induced significant angiogenesis, as expressed by the above genes. Further studies to examine whether this early exposure to hypoxic condition affects the chick's ability to withstand a post-hatch hypoxic environment is still required.
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Affiliation(s)
- S Druyan
- Institute of Animal Science, ARO, the Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel.
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39
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Srisuwan T, Tilkorn D, Al-Benna S, Vashi A, Penington A, Messer H, Abberton K, Thompson E. Survival of rat functional dental pulp cells in vascularized tissue engineering chambers. Tissue Cell 2012; 44:111-21. [DOI: 10.1016/j.tice.2011.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 12/16/2011] [Accepted: 12/17/2011] [Indexed: 01/09/2023]
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40
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UY BENJAMINR, SIMOES-COSTA MARCOS, SAUKA-SPENGLER TATJANA, BRONNER MARIANNEE. Expression of Sox family genes in early lamprey development. THE INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY 2012; 56:377-83. [PMID: 22811271 PMCID: PMC4118928 DOI: 10.1387/ijdb.113416bu] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Members of the Sox (Sry-related high mobility group box) family of transcription factors play a variety of roles during development of both vertebrates and invertebrates. A marked expansion in gene number occurred during the emergence of vertebrates, apparently via gene duplication events that are thought to have facilitated new functions. By screening a macroarrayed library as well as the lamprey genome, we have isolated genes of the Sox B, D, E and F subfamilies in the basal jawless vertebrate, lamprey. The expression patterns of all identified Sox genes were examined from gastrulation through early organogenesis (embryonic day 4-14), with particular emphasis on the neural crest, a vertebrate innovation. Coupled with phylogenetic analysis of these Sox genes, the results provide insight into gene duplication and di-vergence in paralog deployment occurring during early vertebrate evolution.
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Affiliation(s)
- BENJAMIN R. UY
- Division of Biology 139-74, California Institute of Technology, Pasadena, CA 91125 USA
| | - MARCOS SIMOES-COSTA
- Division of Biology 139-74, California Institute of Technology, Pasadena, CA 91125 USA
| | | | - MARIANNE E. BRONNER
- Division of Biology 139-74, California Institute of Technology, Pasadena, CA 91125 USA
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41
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Jaffredo T. [The avian model in developmental biology and physiopathology]. Ann Pathol 2011; 31:S65-9. [PMID: 22054465 DOI: 10.1016/j.annpat.2011.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Accepted: 09/05/2011] [Indexed: 10/16/2022]
Affiliation(s)
- Thierry Jaffredo
- CNRS UMR7622, laboratoire de biologie du développement, bâtiment C, 6ème étage, case 24, 75252 Paris cedex 05, France.
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42
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Genome-wide association study of body weight in chicken F2 resource population. PLoS One 2011; 6:e21872. [PMID: 21779344 PMCID: PMC3136483 DOI: 10.1371/journal.pone.0021872] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 06/10/2011] [Indexed: 11/19/2022] Open
Abstract
Chicken body weight is an economically important trait and great genetic progress has been accomplished in genetic selective for body weight. To identify genes and chromosome regions associated with body weight, we performed a genome-wide association study using the chicken 60 k SNP panel in a chicken F2 resource population derived from the cross between Silky Fowl and White Plymouth Rock. A total of 26 SNP effects involving 9 different SNP markers reached 5% Bonferroni genome-wide significance. A chicken chromosome 4 (GGA4) region approximately 8.6 Mb in length (71.6-80.2 Mb) had a large number of significant SNP effects for late growth during weeks 7-12. The LIM domain-binding factor 2 (LDB2) gene in this region had the strongest association with body weight for weeks 7-12 and with average daily gain for weeks 6-12. This GGA4 region was previously reported to contain body weight QTL. GGA1 and GGA18 had three SNP effects on body weight with genome-wide significance. Some of the SNP effects with the significance of "suggestive linkage" overlapped with previously reported results.
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44
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Murine prolylcarboxypeptidase depletion induces vascular dysfunction with hypertension and faster arterial thrombosis. Blood 2011; 117:3929-37. [PMID: 21297000 DOI: 10.1182/blood-2010-11-318527] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Prolylcarboxypeptidase (PRCP) activates prekallikrein to plasma kallikrein, leading to bradykinin liberation, and degrades angiotensin II. We now identify PRCP as a regulator of blood vessel homeostasis. β-Galactosidase staining in PRCP(gt/gt) mice reveals expression in kidney and vasculature. Invasive telemetric monitorings show that PRCP(gt/gt) mice have significantly elevated blood pressure. PRCP(gt/gt) mice demonstrate shorter carotid artery occlusion times in 2 models, and their plasmas have increased thrombin generation times. Pharmacologic inhibition of PRCP with Z-Pro-Prolinal or plasma kallikrein with soybean trypsin inhibitor, Pro-Phe-Arg-chloromethylketone or PKSI 527 also shortens carotid artery occlusion times. Aortic and renal tissues have uncoupled eNOS and increased reactive oxygen species (ROS) in PRCP(gt/gt) mice as detected by dihydroethidium or Amplex Red fluorescence or lucigenin luminescence. The importance of ROS is evidenced by the fact that treatment of PRCP(gt/gt) mice with antioxidants (mitoTEMPO, apocynin, Tempol) abrogates the hypertensive, prothrombotic phenotype. Mechanistically, our studies reveal that PRCP(gt/gt) aortas express reduced levels of Kruppel-like factors 2 and 4, thrombomodulin, and eNOS mRNA, suggesting endothelial cell dysfunction. Further, PRCP siRNA treatment of endothelial cells shows increased ROS and uncoupled eNOS and decreased protein C activation because of thrombomodulin inactivation. Collectively, our studies identify PRCP as a novel regulator of vascular ROS and homeostasis.
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45
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De Paepe ME, Greco D, Mao Q. Angiogenesis-related gene expression profiling in ventilated preterm human lungs. Exp Lung Res 2010; 36:399-410. [PMID: 20718599 DOI: 10.3109/01902141003714031] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Preterm infants exposed to oxygen and mechanical ventilation are at risk for bronchopulmonary dysplasia (BPD), a multifactorial chronic lung disorder characterized by arrested alveolar development and nonsprouting, dysmorphic microvascular angiogenesis. The molecular regulation of this BPD-associated pathological angiogenesis remains incompletely understood. In this study, the authors used focused microarray technology to characterize the angiogenic gene expression profile in postmortem lung samples from short-term ventilated preterm infants (born at 24 to 27 weeks' gestation) and age-matched control infants. Microarray analysis identified differential expression of 13 of 112 angiogenesis-related genes. Genes significantly up-regulated in ventilated lungs included the antiangiogenic genes thrombospondin-1, collagen XVIII alpha-1, and tissue inhibitor of metalloproteinase-1 (TIMP1), as well as endoglin, transforming growth factor-alpha, and monocyte chemoattractant protein-1 (CCL2). Increased expression of thrombospondin-1 in ventilated lungs was verified by real-time polymerase chain reaction (PCR) and immunolocalized primarily to intravascular platelets and fibrin aggregates. Down-regulated genes included proangiogenic angiogenin and midkine, as well as vascular endothelial growth factor (VEGF)-B, VEGF receptor-2, and the angiopoietin receptor TEK/Tie-2. In conclusion, short-term ventilated lungs show a shift from traditional angiogenic growth factors to alternative, often antisprouting regulators. This angiogenic shift may be implicated in the regulation of dysmorphic angiogenesis and, consequently, deficient alveolarization characteristic of infants with BPD.
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Affiliation(s)
- Monique E De Paepe
- Department of Pathology, Women and Infants Hospital, Providence, Rhode Island 02905, USA.
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46
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Javerzat S, Bikfalvi A, Hagedorn. R29 - Oral, Club Mex-H Expression de nouveaux gènes endothéliaux dans les tumeurs humaines et corrélations cliniques. Bull Cancer 2010. [DOI: 10.1016/s0007-4551(15)30946-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Soulet F, Kilarski WW, Antczak P, Herbert J, Bicknell R, Falciani F, Bikfalvi A. Gene signatures in wound tissue as evidenced by molecular profiling in the chick embryo model. BMC Genomics 2010; 11:495. [PMID: 20840761 PMCID: PMC2996991 DOI: 10.1186/1471-2164-11-495] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Accepted: 09/14/2010] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Modern functional genomic approaches may help to better understand the molecular events involved in tissue morphogenesis and to identify molecular signatures and pathways. We have recently applied transcriptomic profiling to evidence molecular signatures in the development of the normal chicken chorioallantoic membrane (CAM) and in tumor engrafted on the CAM. We have now extended our studies by performing a transcriptome analysis in the "wound model" of the chicken CAM, which is another relevant model of tissue morphogenesis. RESULTS To induce granulation tissue (GT) formation, we performed wounding of the chicken CAM and compared gene expression to normal CAM at the same stage of development. Matched control samples from the same individual were used. We observed a total of 282 genes up-regulated and 44 genes down-regulated assuming a false-discovery rate at 5% and a fold change > 2. Furthermore, bioinformatics analysis lead to the identification of several categories that are associated to organismal injury, tissue morphology, cellular movement, inflammatory disease, development and immune system. Endothelial cell data filtering leads to the identification of several new genes with an endothelial cell signature. CONCLUSIONS The chick chorioallantoic wound model allows the identification of gene signatures and pathways involved in GT formation and neoangiogenesis. This may constitute a fertile ground for further studies.
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Liu S, Shen H, Xu M, Liu O, Zhao L, Liu S, Guo Z, Du J. FRP inhibits ox-LDL-induced endothelial cell apoptosis through an Akt-NF-{kappa}B-Bcl-2 pathway and inhibits endothelial cell apoptosis in an apoE-knockout mouse model. Am J Physiol Endocrinol Metab 2010; 299:E351-63. [PMID: 20530739 DOI: 10.1152/ajpendo.00005.2010] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Atherosclerosis is the most common cause of cardiovascular diseases in the world. Although the development of atherosclerosis appears to be the result of multiple maladaptive pathways, a particularly important factor in the pathogenesis of atherosclerosis is oxidized low-density lipoprotein (ox-LDL), which contributes to endothelial damage. Data from our laboratory and others show that follistatin-related protein (FRP), which is expressed in the vasculature, has cardioprotective effects, suggesting that loss of FRP protection might play a role in the development of atherosclerosis. In the present study, we determined whether FRP overexpression protects against endothelial cell (EC) damage, an intermediate end point for atherosclerosis. We bred apoE-knockout (apoE(-/-)) mice that were FRP(+) transgenic (they overexpressed FRP). We compared them with control mice (their littermates). Human umbilical vein endothelial cells (HUVECs) were isolated and treated with ox-LDL and recombinant FRP. FRP-induced signal transduction and Bcl-2 mRNA and protein stability were analyzed. After 16 wk, apoE(-/-) FRP(+) mice had significantly fewer apoptotic ECs than controls. In vitro experiments showed that the effect of FRP on EC apoptosis was mediated by upregulation of expression of the antiapoptotic protein Bcl-2. In HUVECs, FRP upregulated Bcl-2 transcription via a PI3K-Akt-NF-kappaB pathway. We conclude that FRP overexpression maintains EC viability by preventing apoptosis via Bcl-2 upregulation. FRP may be a novel therapeutic target for the prevention and treatment of vascular EC injury and of atherosclerosis.
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Affiliation(s)
- Shu Liu
- Dept. of Vascular Biology, Capital Medical University, Beijing Anzhen Hospital, Beijing Institute of Heart, Lung, and Blood Vessel Disease, China.
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49
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Boellmann F, Zhang L, Clewell HJ, Schroth GP, Kenyon EM, Andersen ME, Thomas RS. Genome-wide Analysis of DNA Methylation and Gene Expression Changes in the Mouse Lung following Subchronic Arsenate Exposure. Toxicol Sci 2010; 117:404-17. [DOI: 10.1093/toxsci/kfq225] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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50
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Cavill R, Sidhu JK, Kilarski W, Javerzat S, Hagedorn M, Ebbels TMD, Bikfalvi A, Keun HC. A Combined Metabonomic and Transcriptomic Approach to Investigate Metabolism during Development in the Chick Chorioallantoic Membrane. J Proteome Res 2010; 9:3126-34. [DOI: 10.1021/pr100033t] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rachel Cavill
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Jasmin K. Sidhu
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Witold Kilarski
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Sophie Javerzat
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Martin Hagedorn
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Timothy, M. D. Ebbels
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Andreas Bikfalvi
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
| | - Hector C. Keun
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Sir Alexander Fleming Building, Imperial College London, London, SW7 2AZ; INSERM, U920, 33405 Talence, France; and Université Bordeaux I, 33405 Talence, France
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