1
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Angiogenesis is critical for the exercise-mediated enhancement of axon regeneration following peripheral nerve injury. Exp Neurol 2022; 353:114029. [DOI: 10.1016/j.expneurol.2022.114029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/17/2022] [Accepted: 02/27/2022] [Indexed: 11/21/2022]
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2
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Ke X, Jin B, You W, Chen Y, Xu H, Zhao H, Lu X, Sang X, Zhong S, Yang H, Mao Y, Du S. Comprehensive analysis of coagulation indices for predicting survival in patients with biliary tract cancer. BMC Cancer 2021; 21:953. [PMID: 34433454 PMCID: PMC8390227 DOI: 10.1186/s12885-021-08684-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 08/12/2021] [Indexed: 11/10/2022] Open
Abstract
Background Abnormal activation of the coagulation system has been reported in patients with malignancies, but its prognostic significance in biliary tract cancer (BTC) remains unclear. This study aims to analyze and compare the prognostic value of coagulation indices in patients with BTC. Methods The medical records of 450 patients with BTC who underwent surgical resection at our hospital between 2003 and 2017 were retrospectively analyzed. Time-dependent receiver operating characteristic curves were plotted to compare the predictive accuracy of coagulation indices. A predictive nomogram for overall survival (OS) was established based on the Cox regression analysis and validated in both the training and validation cohorts. A novel stratification model was created according to the total points of the nomogram. Results Fibrinogen and international normalized ratio (INR) had the best predictive accuracy among the coagulation indices considered and were also the independent prognostic factors for OS. The nomogram and the novel stratification model had satisfactory performance and outperformed TNM staging. Conclusions The study demonstrated that coagulation indices are valuable in predicting OS in BTC, with fibrinogen and INR having the best predictive ability. The nomogram and the novel stratification model could be applied to predict survival for patients with BTC. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08684-w.
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Affiliation(s)
- Xindi Ke
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China.,Peking Union Medical College (PUMC), Chinese Academy of Medical Sciences & PUMC, Beijing, China
| | - Bao Jin
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Wen You
- Peking Union Medical College (PUMC), Chinese Academy of Medical Sciences & PUMC, Beijing, China
| | - Yang Chen
- Peking Union Medical College (PUMC), Chinese Academy of Medical Sciences & PUMC, Beijing, China
| | - Haifeng Xu
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Haitao Zhao
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xin Lu
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xinting Sang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Shouxian Zhong
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Huayu Yang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Yilei Mao
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Shunda Du
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences, Beijing, 100730, China.
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3
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Dzikowski L, Mirzaei R, Sarkar S, Kumar M, Bose P, Bellail A, Hao C, Yong VW. Fibrinogen in the glioblastoma microenvironment contributes to the invasiveness of brain tumor-initiating cells. Brain Pathol 2021; 31:e12947. [PMID: 33694259 PMCID: PMC8412081 DOI: 10.1111/bpa.12947] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 01/20/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022] Open
Abstract
Glioblastomas (GBMs) are highly aggressive, recurrent, and lethal brain tumors that are maintained via brain tumor‐initiating cells (BTICs). The aggressiveness of BTICs may be dependent on the extracellular matrix (ECM) molecules that are highly enriched within the GBM microenvironment. Here, we investigated the expression of ECM molecules in GBM patients by mining the transcriptomic databases and also staining human GBM specimens. RNA levels for fibronectin, brevican, versican, heparan sulfate proteoglycan 2 (HSPG2), and several laminins were high in GBMs compared to normal brain, and this was corroborated by immunohistochemistry. While fibrinogen transcript was at normal level in GBM, its protein immunoreactivity was prominent within GBM tissues. These ECM molecules in tumor specimens were in proximity to, and surrounding BTICs. In culture, fibronectin and pan‐laminin induced the adhesion of BTICs onto the plastic substratum. However, fibrinogen increased the size of the BTIC spheres by facilitating the adhesive property, motility, and invasiveness of BTICs. These features of elevated invasiveness were corroborated in resected GBM specimens by the close proximity of fibrinogen with matrix metalloproteinase (MMP)‐2 and‐9, which are proteases implicated in metastasis. Moreover, the effect of fibrinogen‐induced invasiveness was attenuated in BTICs where MMP‐2 and ‐9 have been inhibited with siRNAs or pharmacological inhibitors. Our results implicate fibrinogen in GBM as a mediator of the invasive properties of BTICs, and as a target for therapy to reduce BTIC tumorigenecity.
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Affiliation(s)
- Lauren Dzikowski
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Reza Mirzaei
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Susobhan Sarkar
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Mehul Kumar
- Department of Biochemistry, University of Calgary, Calgary, AB, Canada.,Department of Oncology, University of Calgary, Calgary, AB, Canada
| | - Pinaki Bose
- Department of Biochemistry, University of Calgary, Calgary, AB, Canada.,Department of Oncology, University of Calgary, Calgary, AB, Canada.,Department of Molecular Biology, University of Calgary, Calgary, AB, Canada.,Department of Surgery, University of Calgary, Calgary, AB, Canada.,the Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB, Canada
| | - Anita Bellail
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chunhai Hao
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - V Wee Yong
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.,Department of Oncology, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
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4
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Agathe F, Yasuhiro N, Yukari SM, Tomomi F, Kaoru S, Matsusaki M. An in vitro self-organized three-dimensional model of the blood-brain barrier microvasculature. Biomed Mater 2020; 16:015006. [PMID: 33331293 DOI: 10.1088/1748-605x/aba5f1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The blood-brain barrier (BBB) protects the human brain from external aggression. Despite its great importance, very few in vitro models of the BBB reproducing its complex organization are available yet. Here we fabricated such a three-dimensional (3D) self-organized in vitro model of BBB microvasculature by means of a combination of collagen microfibers (CMF) and fibrin gel. The interconnected fibers supported human brain microvascular endothelial cell migration and the formation of a capillary-like network with a lumen diameter close to in vivo values. Fibrin, a protein involved in blood vessel repair, favored the further 3D conformation of the brain microvascular endothelial cells, astrocytes and pericytes, ensured gel cohesion and avoided shrinkage. The maturation of the BBB microvasculature network was stimulated by both the CMF and the fibrin in the hydrogel. The expression of essential tight-junction proteins, carriers and transporters was validated in regards to bidimensional simple coculture. The volume of gel drops was easily tunable to fit in 96-well plates. The cytotoxicity of D-Mannitol and its impacts on the microvascular network were evaluated, as an example of the pertinence of this 3D BBB capillary model for screening applications.
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Affiliation(s)
- Figarol Agathe
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan
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5
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Liu H, Kitano S, Irie S, Levato R, Matsusaki M. Collagen Microfibers Induce Blood Capillary Orientation and Open Vascular Lumen. ACTA ACUST UNITED AC 2020; 4:e2000038. [DOI: 10.1002/adbi.202000038] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/15/2020] [Accepted: 02/21/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Hao Liu
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565‐0871 Japan
| | - Shiro Kitano
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565‐0871 Japan
| | - Shinji Irie
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565‐0871 Japan
| | - Riccardo Levato
- Regenerative Medicine Center Utrecht and Department of Orthopaedics University Medical Center Utrecht Heidelberglaan 100 Utrecht 3584 CX The Netherlands
| | - Michiya Matsusaki
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2‐1 Yamadaoka Suita Osaka 565‐0871 Japan
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6
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Ai X, Pellegrini M, Freeman JW. The Use of Alginate to Inhibit Mineralization for Eventual Vascular Development. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-019-00104-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Li Q, Cong R, Kong F, Ma J, Wu Q, Ma X. Fibrinogen Is A Coagulation Marker Associated With The Prognosis Of Endometrial Cancer. Onco Targets Ther 2019; 12:9947-9956. [PMID: 31819491 PMCID: PMC6875273 DOI: 10.2147/ott.s222813] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/14/2019] [Indexed: 12/27/2022] Open
Abstract
Purpose The present study aimed to identify coagulation markers with prognostic value in the setting of surgically treated endometrial cancer. Patients and methods A total of 942 patients with endometrial cancer who underwent surgery were included in the study. The preoperative prothrombin time (PT), activated partial thromboplastin time (aPTT), thrombin time (TT), prothrombin time activity (PTA), fibrinogen and D-dimer values were analyzed to determine their potential associations with clinicopathological characteristics. Survival analysis was performed using the Kaplan-Meier method, p-values were calculated using the log-rank text, and the prognostic factors were evaluated using Cox’s proportional hazards regression model. Results The preoperative plasma fibrinogen and D-dimer concentrations were significantly different among patients with different ages, pre/post-menopausal status, International Federation of Obstetrics and Gynecology Association (FIGO) stage, tumor grade, depth of myometrial invasion, histological type and lymphatic vessel space invasion. Fibrinogen level was also asscoiated with body mass index (BMI) and comorbidities, and D-dimer level was asscoiated with preoperative radiotherapy and chemotherapy. APTT was different in patients in pre/post-menopausal status and with or without comorbidities. PTA was asscoiated with BMI and lymphovascular invasion. TT was different between different age groups, different menopause status groups, as well as different FIGO stage groups. A multivariate analysis identified high fibrinogen levels (>3.25 g/L) as an independent prognostic factor for overall survival (HR=1.807; 95% CI=1.003–3.253; p=0.049). Conclusion High pretreatment fibrinogen levels are associated with poor overall survival and represent a valuable independent prognostic factor in patients with endometrial cancer. PT, aPTT, TT, PTA and D-dimer levels cannot be used as independent prognostic factors for endometrial cancer.
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Affiliation(s)
- Qing Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Rong Cong
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Fanfei Kong
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Jian Ma
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Qijun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Xiaoxin Ma
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
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8
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Abstract
Introduction Wounds and their complications present a frequent cause of morbidity and mortality in everyday clinical practice. In order to reduce the wound burden, much effort has been directed into the physiology of healing and new therapeutic approaches. Aim This paper provides an overview from the literature about the role of endothelial and epithelial cells in tissue filler employment for wound healing. Material and Methods The scientific literature was reviewed through PubMed, Medline and Science Direct. The articles were chosen in correlation with the study objective and their scientific relevance. Results Successful wound healing depends on many diverse processes, cell types and molecular mediators. The definitive aim of wound healing is a properly healed wound. Tissue fillers are becoming an important alternative in wound management, although augmentation of soft tissue can present a demanding problem due to the difficulties in tissue survival. In order to prevent its failure, an optimal vascular network needs to form from wound edges into the filler. Conclusions Because of the importance of chemotaxis and angiogenesis in various physiological and pathological processes, both events present an extensive area of intense research. Additionally, epithelial cells are needed to cover the wound defect and sealing the wound environment from outer world.
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Affiliation(s)
- Tomaz Velnar
- Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana, Slovenia.,AMEU-ECM Maribor, Slovenia
| | - Lidija Gradisnik
- AMEU-ECM Maribor, Slovenia.,Institute of Biomedical Sciences, Medical Faculty Maribor, Slovenia
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9
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Torres P, Castro M, Reyes M, Torres VA. Histatins, wound healing, and cell migration. Oral Dis 2018; 24:1150-1160. [PMID: 29230909 DOI: 10.1111/odi.12816] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 12/20/2022]
Abstract
Wounds in the oral mucosa heal faster and more efficiently than those in the skin, although the mechanisms underlying these differences are not completely clear. In the last 10 years, a group of salivary peptides, the histatins, has gained attention on behalf of their ability to improve several phases of the wound-healing process. In addition to their roles as anti-microbial agents and in enamel maintenance, histatins elicit other biological effects, namely by promoting the migration of different cell types contained in the oral mucosa and in non-oral tissues. Histatins, and specifically histatin-1, promote cell adhesion and migration in oral keratinocytes, gingival and dermal fibroblasts, non-oral epithelial cells, and endothelial cells. This is particularly relevant, as histatin-1 promotes the re-epithelialization phase and the angiogenic responses by increasing epithelial and endothelial cell migration. Although the molecular mechanisms associated with histatin-dependent cell migration remain poorly understood, recent studies have pointed to the control of signaling endosomes and the balance of small GTPases. This review aimed to update the literature on the effects of histatins in cell migration, with a focus on wound healing. We will also discuss the consequences that this increasing field will have in disease and therapy design.
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Affiliation(s)
- P Torres
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile
| | - M Castro
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile
| | - M Reyes
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile
| | - V A Torres
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago, Chile
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10
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Morgan R, Keen J, Halligan D, O’Callaghan A, Andrew R, Livingstone D, Abernethie A, Maltese G, Walker B, Hadoke P. Species-specific regulation of angiogenesis by glucocorticoids reveals contrasting effects on inflammatory and angiogenic pathways. PLoS One 2018; 13:e0192746. [PMID: 29447208 PMCID: PMC5813970 DOI: 10.1371/journal.pone.0192746] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/30/2018] [Indexed: 12/11/2022] Open
Abstract
Glucocorticoids are potent inhibitors of angiogenesis in the rodent in vivo and in vitro but the mechanism by which this occurs has not been determined. Administration of glucocorticoids is used to treat a number of conditions in horses but the angiogenic response of equine vessels to glucocorticoids and, therefore, the potential role of glucocorticoids in pathogenesis and treatment of equine disease, is unknown. This study addressed the hypothesis that glucocorticoids would be angiostatic both in equine and murine blood vessels.The mouse aortic ring model of angiogenesis was adapted to assess the effects of cortisol in equine vessels. Vessel rings were cultured under basal conditions or exposed to: foetal bovine serum (FBS; 3%); cortisol (600 nM), cortisol (600nM) plus FBS (3%), cortisol (600nM) plus either the glucocorticoid receptor antagonist RU486 or the mineralocorticoid receptor antagonist spironolactone. In murine aortae cortisol inhibited and FBS stimulated new vessel growth. In contrast, in equine blood vessels FBS alone had no effect but cortisol alone, or in combination with FBS, dramatically increased new vessel growth compared with controls. This effect was blocked by glucocorticoid receptor antagonism but not by mineralocorticoid antagonism. The transcriptomes of murine and equine angiogenesis demonstrated cortisol-induced down-regulation of inflammatory pathways in both species but up-regulation of pro-angiogenic pathways selectively in the horse. Genes up-regulated in the horse and down-regulated in mice were associated with the extracellular matrix. These data call into question our understanding of glucocorticoids as angiostatic in every species and may be of clinical relevance in the horse.
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Affiliation(s)
- Ruth Morgan
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
- * E-mail:
| | - John Keen
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Daniel Halligan
- Fios Genomics Ltd, Nine Edinburgh Bioquarter, Edinburgh, United Kingdom
| | - Alan O’Callaghan
- Fios Genomics Ltd, Nine Edinburgh Bioquarter, Edinburgh, United Kingdom
| | - Ruth Andrew
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Dawn Livingstone
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Amber Abernethie
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Giorgia Maltese
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Brian Walker
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Patrick Hadoke
- University/ BHF Centre for Cardiovascular Science, The Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
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11
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Shin S, Shin JU, Lee Y, Chung WY, Nam KH, Kwon TG, Lee JH. The Effects of Multi-Growth Factors-Containing Cream on Post-Thyroidectomy Scars: A Preliminary Study. Ann Dermatol 2017; 29:314-320. [PMID: 28566908 PMCID: PMC5438938 DOI: 10.5021/ad.2017.29.3.314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/29/2016] [Accepted: 08/29/2016] [Indexed: 11/08/2022] Open
Abstract
Background Growth factors play important roles in wound healing. However, the evidence for the effects of growth factors on post-thyroidectomy scars is limited. Objective We performed a prospective study to assess the preventive and therapeutic effect of a multi-growth factor (MGF)-containing cream on post-thyroidectomy scars. Methods Twenty-one patients with thyroidectomy scars applied MGF cream twice a day. We assessed the changes in erythema, pigmentation, skin elasticity, and skin hydration status using the erythema index, melanin index, cutometer, and corneometer, respectively. In addition, Vancouver scar scale (VSS) and patient satisfaction were assessed at 10 days after surgery (baseline), 2 weeks, 6 weeks, and 12 weeks after baseline. Results The mean total VSS scores were significantly lower at 6 weeks (3.24±1.51 vs. 1.91±1.38) and 12 weeks (3.24±1.51 vs. 1.71±1.59) compared to the baseline. The degree of pigmentation was significantly lower at 12 weeks compared to the baseline, and the skin elasticity, and the skin hydration status were significantly higher at 12 weeks compared to the baseline. Over 85% of the patients were satisfied with the use of MGF cream without any adverse effect. Conclusion MGF cream might have additive or supportive effect for scar formation after thyroidectomy.
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Affiliation(s)
- Sungsik Shin
- Department of Dermatology, Severance Hospital, Seoul, Korea.,Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jung U Shin
- Department of Dermatology, Severance Hospital, Seoul, Korea.,Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Youngin Lee
- Department of Dermatology, Severance Hospital, Seoul, Korea.,Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Woong Youn Chung
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Korea
| | - Kee-Hyun Nam
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Gwang Kwon
- Department of Dermatology, Severance Hospital, Seoul, Korea.,Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ju Hee Lee
- Department of Dermatology, Severance Hospital, Seoul, Korea.,Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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12
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Asanuma K, Matsumine A, Nakamura T, Matsubara T, Asanuma Y, Oi T, Goto M, Okuno K, Kakimoto T, Yada Y, Sudo A. Impact of plasma fibrinogen levels in benign and malignant soft tissue tumors. Cancer Biomark 2016; 16:453-8. [PMID: 27062702 DOI: 10.3233/cbm-160584] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Fibrinogen, a 340 kDa glycoprotein synthesized in the liver, is known to be involved in tumor angiogenesis, enlargement, and metastasis. Elevated plasma fibrinogen levels are associated with tumor progression in many cancer patients. However, there are no reports about differences in fibrinogen levels between benign and malignant soft tissue tumors. OBJECTIVES The purpose of this study was to clarify whether preoperative plasma fibrinogen levels can be used for differential diagnosis of benign or malignant soft tissue tumors. METHODS The plasma fibrinogen levels from 102 primary soft tissue tumor patients were measured before biopsy or treatment. Fibrinogen levels were analyzed and compared to various clinical parameters. RESULTS According to receiver operating characteristic (ROC) curve analysis, a threshold of serum fibrinogen of 315 mg/dL identified malignant patients with 60.9% sensitivity and 87.5% specificity. The diagnostic accuracy was evaluated by area under the curve (AUC: 0.805). Over 315 mg/dL of fibrinogen was associated with a significantly increased risk of malignancy by multiple logistic regression analysis (OR: 6.452, p= 0.0004). CONCLUSIONS We demonstrated that plasma fibrinogen levels have a relationship with tumor malignancy of soft tissue tumors. High fibrinogen levels can be a helpful subsidiary tool for the prediction of malignant soft tissue tumors with other diagnostic tools.
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13
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Pedrazzani C, Mantovani G, Salvagno GL, Baldiotti E, Ruzzenente A, Iacono C, Lippi G, Guglielmi A. Elevated fibrinogen plasma level is not an independent predictor of poor prognosis in a large cohort of Western patients undergoing surgery for colorectal cancer. World J Gastroenterol 2016; 22:9994-10001. [PMID: 28018106 PMCID: PMC5143766 DOI: 10.3748/wjg.v22.i45.9994] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/02/2016] [Accepted: 11/13/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the clinical significance of the preoperative fibrinogen plasma level as a prognostic marker after surgery for colorectal cancer.
METHODS This retrospective study analysed 652 patients undergoing surgery for stage I-IV colorectal cancer between January 2005 and December 2012, at the Division of General Surgery A, University of Verona Hospital Trust, in whom preoperative fibrinogen plasma values were assessed at baseline. Fibrinogen is involved in tumourigenesis as well as tumour progression in several malignancies. Correlations between preoperative plasma fibrinogen values and clinicopathological characteristics were investigated. Univariate and multivariate survival analyses were performed to identify factors associated with overall and tumour-related survival.
RESULTS Among the 652 patients, the fibrinogen value was higher than the threshold of 400 mg/dL in 345 patients (53%). The preoperative mean ± SD of fibrinogen was 426.2 ± 23.2 mg/dL (median: 409 mg/dL; range: 143-1045 mg/dL). Preoperative fibrinogen values correlated with age (P = 0.003), completeness of tumour resection, potentially curative vs palliative (P < 0.001), presence of systemic metastasis (P < 0.001), depth of tumour invasion pT (P < 0.001), nodes involvement pN (P = 0.001) and CEA serum level (P < 0.001). The mean fibrinogen value (± SD) was 395.6 ± 120.4 mg/dL in G1 tumours, 424.1 ± 121.4 mg/dL in G2 tumours and 453.4 ± 131.6 mg/dL in G3 tumours (P = 0.045). The overall survival and tumour-related survival were significantly higher in patients with fibrinogen values ≤ 400 mg/dL (P < 0.001). However, hyperfibrinogenemia did not retain statistical significance regarding either overall (P = 0.313) or tumour-related survival (P = 0.355) after controlling for other risk factors in a multivariate analysis.
CONCLUSION Preoperative fibrinogen levels correlate with cancer severity but do not help in predicting patient prognosis after colorectal cancer surgery.
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14
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Doni A, Garlanda C, Mantovani A. Innate immunity, hemostasis and matrix remodeling: PTX3 as a link. Semin Immunol 2016; 28:570-577. [PMID: 27881292 DOI: 10.1016/j.smim.2016.10.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/07/2016] [Accepted: 10/12/2016] [Indexed: 12/20/2022]
Abstract
Innate immunity is evolutionarily connected with hemostasis. PTX3 is an essential fluid-phase pattern recognition molecule of the innate immune system that acts as a functional ancestor of antibodies. PTX3 by interacting with defense collagens and fibrinogens amplifies effector functions of the innate immune system. At wound sites, PTX3 regulates the injury-induced thrombotic response and promotes wound healing by favoring timely fibrinolysis. Therefore, PTX3 interacts with ancestral domains conserved in innate immunity, hemostasis and extracellular matrix and exerts functions related to both antimicrobial resistance and tissue repair. These findings strengthen the connection between innate immune system and hemostasis, and suggest that recognition of microbes and extracellular matrix are evolutionarily conserved and integrated functions of the innate immune system.
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Affiliation(s)
- Andrea Doni
- Istituto Clinico Humanitas IRCCS, via Manzoni 113, 20089 Rozzano, Italy.
| | - Cecilia Garlanda
- Istituto Clinico Humanitas IRCCS, via Manzoni 113, 20089 Rozzano, Italy; Humanitas University, via Manzoni 113, 20089 Rozzano, Italy
| | - Alberto Mantovani
- Istituto Clinico Humanitas IRCCS, via Manzoni 113, 20089 Rozzano, Italy; Humanitas University, via Manzoni 113, 20089 Rozzano, Italy
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Extracellular Matrix, a Hard Player in Angiogenesis. Int J Mol Sci 2016; 17:ijms17111822. [PMID: 27809279 PMCID: PMC5133823 DOI: 10.3390/ijms17111822] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/30/2016] [Accepted: 10/21/2016] [Indexed: 12/11/2022] Open
Abstract
The extracellular matrix (ECM) is a complex network of proteins, glycoproteins, proteoglycans, and polysaccharides. Through multiple interactions with each other and the cell surface receptors, not only the ECM determines the physical and mechanical properties of the tissues, but also profoundly influences cell behavior and many physiological and pathological processes. One of the functions that have been extensively explored is its impingement on angiogenesis. The strong impact of the ECM in this context is both direct and indirect by virtue of its ability to interact and/or store several growth factors and cytokines. The aim of this review is to provide some examples of the complex molecular mechanisms that are elicited by these molecules in promoting or weakening the angiogenic processes. The scenario is intricate, since matrix remodeling often generates fragments displaying opposite effects compared to those exerted by the whole molecules. Thus, the balance will tilt towards angiogenesis or angiostasis depending on the relative expression of pro- or anti-angiogenetic molecules/fragments composing the matrix of a given tissue. One of the vital aspects of this field of research is that, for its endogenous nature, the ECM can be viewed as a reservoir to draw from for the development of new more efficacious therapies to treat angiogenesis-dependent pathologies.
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Shin S, Shin JU, Lee Y, Kwon TG, Lee JH. The effects of a multigrowth factor-containing cream on recovery after laser treatment: a double-blinded, randomized, split-face controlled study. J Cosmet Dermatol 2016; 16:76-83. [DOI: 10.1111/jocd.12285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Sungsik Shin
- Department of Dermatology; Severance Hospital & Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - Jung U Shin
- Department of Dermatology; Severance Hospital & Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - Youngin Lee
- Department of Dermatology; Severance Hospital & Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - Tae Gwang Kwon
- Department of Dermatology; Severance Hospital & Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - Ju Hee Lee
- Department of Dermatology; Severance Hospital & Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
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Chen J, Zhang D, Li Q, Yang D, Fan Z, Ma D, Ren L. Effect of different cell sheet ECM microenvironment on the formation of vascular network. Tissue Cell 2016; 48:442-51. [PMID: 27561623 DOI: 10.1016/j.tice.2016.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/08/2016] [Accepted: 08/08/2016] [Indexed: 11/29/2022]
Abstract
The repair and reconstruction of large bone defects remains as a significant clinical challenge mainly due to the insufficient vascularization. The prefabrication of vascular network based on cell sheet technique brings a promising potential for sufficient vascularization due to rich extracellular matrix (ECM) of cell sheets. However, the effect of different cell sheet ECM micro-environment on the formation of a vascular network has not been well understood. Here our goal is to study the effect of different cell sheets on the formation of a vascular network. First we cultured human bone marrow mesenchymal stem cells (hBMSCs) under two culture conditions to obtain osteogenic differentiated cell sheet (ODCS) and undifferentiated cell sheet (UDCS), respectively. Then the human umbilical vein endothelial cells (HUVECs) were seeded onto the surface of the two sheets at different seeding densities to fabricate pre-vascularized cell sheets. Our results indicated that the two sheets facilitated the alignment of HUVECs and promoted the formation of vascular networks. Quantitative analysis showed that the number of networks in ODCS was higher than that in the UDCS. The ECM of the two sheets was remodeled and rearranged during the tubulogenesis process. Furthermore, results showed that the optimal seeding density of HUVECs was 5×10(4)cell/cm(2). In summary, these results suggest that the vascularized ODCS has a promising potential to construct pre-vascularized tissue for bone repair.
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Affiliation(s)
- Jia Chen
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, China; Hospital of Stomatology, General Hospital of Ningxia Medical University, Yingchuan, Ningxia, 750004, China
| | - Dan Zhang
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Qin Li
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Dan Yang
- Department of Stomatology, The First people's Hospital of Jiayuguan, Jiayuguan, Gansu, 735100, China
| | - Zengjie Fan
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Dongyang Ma
- Department of Oral and Maxillofacial Surgery, Lanzhou General Hospital, Lanzhou Command of PLA, Gansu 730050, China
| | - Liling Ren
- School of Stomatology, Lanzhou University, Lanzhou, Gansu, 730000, China.
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Khan KN, Kitajima M, Hiraki K, Fujishita A, Nakashima M, Masuzaki H. Involvement of Hepatocyte Growth Factor-Induced Epithelial-Mesenchymal Transition in Human Adenomyosis1. Biol Reprod 2015; 92:35. [DOI: 10.1095/biolreprod.114.124891] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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20
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Xu Y, Yan M, Gong Y, Chen L, Zhao F, Zhang Z. Response of endothelial cells to decellularized extracellular matrix deposited by bone marrow mesenchymal stem cells. Int J Clin Exp Med 2014; 7:4997-5003. [PMID: 25663998 PMCID: PMC4307445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 11/13/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVE Evaluate the behavior and function of human umbilical vein endothelial cells (HUVECs) on decellularized extracellular matrix (ECM) deposited by bone marrow mesenchymal stem cells (BMSCs). METHODS Prepared through chemical approach, decellularized ECM was characterized by use of immunofluorescence staining. The morphology, attachment, proliferation and migration of HUVECs cultured on six-well tissue culture plastic (TCP) and decellularized ECM were investigated. RESULTS Decellularized ECM was successfully prepared without three-dimensional architecture disruption. This biological scaffold is similar to nature vascular ECM, preserved various matrix proteins such as type I collagen, type III collagen and fibronection. HUVECs on decellularized ECM showed well attachment and regular arrangement. Decellularized ECM could also significantly enhance the migration and proliferation potential of HUVECs in contrast to TCP. CONCLUSION Deposited by BMSCs, ECM can affect the behavior of endothelial cell and could be used as a promising material in tissue engineering.
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Affiliation(s)
- Yue Xu
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of StomatologyGuangzhou, Guangdong, China
| | - Mengdie Yan
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of StomatologyGuangzhou, Guangdong, China
| | - Yihong Gong
- School of Engineering, Sun Yat-sen UniversityGuangzhou, Guangdong, China
| | - Lei Chen
- Department of Burns Surgery, First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, Guangdong, China
| | - Feng Zhao
- Department of Biomedical Engineering, Michigan Technological University1400 Townsend Drive, Houghton, Michigan, USA
| | - Zhaoqiang Zhang
- Department of Stomatology, Sixth Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, Guangdong, China
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Ahmad A, Ahmad S, Malcolm KC, Miller SM, Hendry-Hofer T, Schaack JB, White CW. Differential regulation of pulmonary vascular cell growth by hypoxia-inducible transcription factor-1α and hypoxia-inducible transcription factor-2α. Am J Respir Cell Mol Biol 2013; 49:78-85. [PMID: 23492195 DOI: 10.1165/rcmb.2012-0107oc] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Hypoxia-inducible transcription factors HIF-1α and HIF-2α can contribute to pulmonary hypertension and vascular remodeling, but their mechanisms remain unknown. This study investigated the role of HIF-1α and HIF-2α in pulmonary artery endothelial and smooth muscle cells. The exposure of human pulmonary artery endothelial cells (HPAECs) to hypoxia (10% O₂ or 5% O₂) increased proliferation over 48 hours, compared with cells during normoxia (21% O₂). The adenovirus-mediated overexpression of HIF-2α that is transcriptionally active during normoxia (mutHIF-2α) increased HPAEC proliferation, whereas the overexpression of HIF-1α, which is transcriptionally active during normoxia (mutHIF-1α), exerted no effect. The knockdown of HIF-2α decreased proliferation during both hypoxia and normoxia. Both HIFs increased migration toward fibrinogen, used as a chemoattractant. In an angiogenesis tube formation assay, mutHIF-2α-transduced cells demonstrated increased tube formation, compared with the mutHIF-1α-transduced cells. In addition, the tubes formed in HIF-2α-transduced cells were more enduring than those in the other groups. In human pulmonary artery smooth muscle cells (HPASMCs), chronic exposure to hypoxia increased proliferation, compared with cells during normoxia. For HPASMCs transduced with adenoviral HIFs, HIF-1α increased proliferation, whereas HIF-2α exerted no such effect. Thus, HIF-1α and HIF-2α exert differential effects in isolated cells of the human pulmonary vasculature. This study demonstrates that HIF-2α plays a predominant role in the endothelial growth pertinent to the remodeling process. In contrast, HIF-1α appears to play a major role in pulmonary smooth muscle growth. The selective targeting of each HIF in specific target cells may more effectively counteract hypoxic pulmonary hypertension and vascular remodeling.
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Affiliation(s)
- Aftab Ahmad
- Department of Pediatrics, School of Medicine, University of Colorado at Denver, Aurora, CO 80045, USA.
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The role of fibrinogen, fibrin and fibrin(ogen) degradation products (FDPs) in tumor progression. Contemp Oncol (Pozn) 2013; 17:113-9. [PMID: 23788975 PMCID: PMC3685376 DOI: 10.5114/wo.2013.34611] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 06/04/2011] [Accepted: 08/09/2011] [Indexed: 01/09/2023] Open
Abstract
Participation of fibrin, fibrinogen, and their degradation products in pathogenesis and progression of cancer may lead to complications of thromboembolic events. The tumor may be a source of fibrinogen. Fibrinogen inside the tumor is one of the factors of its growth and metastasis. Fibrinogen, fibrin and their degradation products possess proinflammatory activity. They indirectly stimulate endothelium to secrete von Willebrand factor, leading to activation of platelets accompanying neoplastic disorders. Fragments E and D are the end products of fibrin(ogen) degradation and E and DD are the end products of stabilized fibrin. E stimulates proliferation, migration and differentiation of endothelial cells, contributing to tumor vasculature. Increased levels of DD are observed in malignant neoplasms, such as breast, lung, colon and ovary cancers. In breast cancers DD correlates with progression of disease and metastasis. The role of fibrinogen and the products of its degradation in the progression of various tumors is not sufficiently understood.
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Du J, Zheng JH, Chen XS, Yang Q, Zhang YH, Zhou L, Yao X. High preoperative plasma fibrinogen is an independent predictor of distant metastasis and poor prognosis in renal cell carcinoma. Int J Clin Oncol 2012; 18:517-23. [DOI: 10.1007/s10147-012-0412-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 04/10/2012] [Indexed: 11/24/2022]
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Collagen VI ablation retards brain tumor progression due to deficits in assembly of the vascular basal lamina. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 180:1145-1158. [PMID: 22200614 DOI: 10.1016/j.ajpath.2011.11.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Revised: 10/25/2011] [Accepted: 11/08/2011] [Indexed: 12/27/2022]
Abstract
To investigate the importance of the vascular basal lamina in tumor blood vessel morphogenesis and function, we compared vessel development, vessel function, and progression of B16F10 melanoma tumors in the brains of wild-type and collagen VI-null mice. In 7-day tumors in the absence of collagen VI, the width of the vascular basal lamina was reduced twofold. Although the ablation of collagen VI did not alter the abundance of blood vessels, a detailed analysis of the number of either pericytes or endothelial cells (or pericyte coverage of endothelial cells) showed that collagen VI-dependent defects during the assembly of the basal lamina have negative effects on both pericyte maturation and the sprouting and survival of endothelial cells. As a result of these deficits, vessel patency was reduced by 25%, and vessel leakiness was increased threefold, resulting in a 10-fold increase in tumor hypoxia along with a fourfold increase in hypoxia-inducible factor-1α expression. In 12-day collagen VI-null tumors, vascular endothelial growth factor expression was increased throughout the tumor stroma, in contrast to the predominantly vascular pattern of vascular endothelial growth factor expression in wild-type tumors. Vessel size was correspondingly reduced in 12-day collagen VI-null tumors. Overall, these vascular deficits produced a twofold decrease in tumor volume in collagen VI-null mice, confirming that collagen VI-dependent basal lamina assembly is a critical aspect of vessel development.
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Shikanov A, Zhang Z, Xu M, Smith RM, Rajan A, Woodruff TK, Shea LD. Fibrin encapsulation and vascular endothelial growth factor delivery promotes ovarian graft survival in mice. Tissue Eng Part A 2011; 17:3095-104. [PMID: 21740332 DOI: 10.1089/ten.tea.2011.0204] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Ovarian cryopreservation before chemotherapy and autotransplantation post-treatment can restore fertility to women with premature ovarian failure. Although the majority of primordial follicles survive the cryopreservation cycle, the follicular pool is reduced after transplantation due to ischemic death. Therefore, we engineered a biomaterial-based system to promote angiogenesis in a mouse model of ovarian transplantation. To mimic the clinical situation of sterility, a bilateral ovariectomy was performed 2 weeks before transplantation, during which time serum levels of follicular stimulating hormone rose to menopausal levels. Before transplantation, vitrified/thawed ovarian tissue from 12-day-old C57Bl/6J pups was encapsulated in fibrin modified with heparin-binding peptide (HBP), heparin, and loaded with 0.5 μg vascular endothelial growth factor (VEGF). The group transplanted with fibrin-HBP-VEGF had twice as many surviving primordial follicles and an increased number of blood vessels relative to the no biomaterial control. Transplanted tissue was viable and supported natural conception that led to live and healthy offspring. The timeline of live births with VEGF delivery suggested that primary follicles survived transplantation, and provided the gametes for the first litter. Thus, VEGF delivery from fibrin supported integration of the transplant with the host, promoted angiogenesis, and enhanced engraftment and function of the tissue.
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Affiliation(s)
- Ariella Shikanov
- Institute of Bionanotechnology in Medicine (IBNAM), Northwestern University, Chicago, Illinois, USA
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27
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Abstract
Extracellular matrix (ECM) is essential for all stages of angiogenesis. In the adult, angiogenesis begins with endothelial cell (EC) activation, degradation of vascular basement membrane, and vascular sprouting within interstitial matrix. During this sprouting phase, ECM binding to integrins provides critical signaling support for EC proliferation, survival, and migration. ECM also signals the EC cytoskeleton to initiate blood vessel morphogenesis. Dynamic remodeling of ECM, particularly by membrane-type matrix metalloproteases (MT-MMPs), coordinates formation of vascular tubes with lumens and provides guidance tunnels for pericytes that assist ECs in the assembly of vascular basement membrane. ECM also provides a binding scaffold for a variety of cytokines that exert essential signaling functions during angiogenesis. In the embryo, ECM is equally critical for angiogenesis and vessel stabilization, although there are likely important distinctions from the adult because of differences in composition and abundance of specific ECM components.
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Affiliation(s)
- Donald R Senger
- Department of Pathology and Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA.
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Togliatto G, Trombetta A, Dentelli P, Rosso A, Brizzi MF. MIR221/MIR222-driven post-transcriptional regulation of P27KIP1 and P57KIP2 is crucial for high-glucose- and AGE-mediated vascular cell damage. Diabetologia 2011; 54:1930. [PMID: 21461636 DOI: 10.1007/s00125-011-2125-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 02/23/2011] [Indexed: 11/30/2022]
Abstract
AIMS/HYPOTHESIS MicroRNAs (miRNAs) are a novel group of small non-coding RNAs that regulate gene expression at the post-transcriptional level and act on their target mRNAs in a tissue- and cell-type-specific manner. Herein, the relevance of MIR221/MIR222 in high-glucose- and AGE-mediated vascular damage was investigated. METHODS Functional studies were performed using human mature endothelial cells and endothelial progenitor cells subjected to high glucose or AGE. Quantitative real-time amplification was performed to analyse MIR221/MIR222 expression in these experimental conditions. Luciferase assay was used to identify MIR221/MIR222 targets. Functional studies were performed in vitro and in vivo in mice using gain- and loss-of-function approaches. RESULTS Using an in vivo mouse model we demonstrated that exposure to AGE and high glucose impaired vessel formation. Moreover, in vitro functional studies revealed that both high glucose and AGE inhibit cell-cycle progression by modulating the expression of P27KIP1 (also known as CDKN1B) and P57KIP2 (also known as CDKN1C), which encode cyclin-dependent kinase inhibitor 1B (p27, Kip1) (P27KIP1) and cyclin-dependent kinase inhibitor 1C (p57, Kip2) (P57KIP2), respectively. Crucial to AGE- and high-glucose-mediated cell-cycle arrest was the downregulation of MIR221/MIR222 expression. Luciferase assay showed that MIR221 and MIR222 specifically bind to the P27KIP1 and P57KIP2 mRNA 3'-untranslated regions, implicating P27KIP1 and P57KIP2 as MIR221/MIR222 targets. These results were confirmed by gain-of-function experiments in vitro, and by injecting mice with endothelial cells overexpressing MIR221 and MIR222. CONCLUSIONS/INTERPRETATION We provide evidence that high-glucose- and AGE-induced inhibition of vascular cell proliferation is controlled by MIR221/MIR222-driven post-transcriptional regulation of P27KIP1 and P57KIP2. These data add further insight to the possible contribution of miRNAs in vascular damage mediated by a high-glucose environment.
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Affiliation(s)
- G Togliatto
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - A Trombetta
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - P Dentelli
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - A Rosso
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - M F Brizzi
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy.
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Benza RL, Passineau MJ, Anderson PG, Barchue JP, George JF. The role of fibrinolytic genes and proteins in the development of allograft vascular disease. J Heart Lung Transplant 2011; 30:935-44. [PMID: 21652221 DOI: 10.1016/j.healun.2011.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 04/19/2011] [Accepted: 04/19/2011] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND We have previously shown that lack of plasminogen activator inhibitor-1 (PAI-1) expression in donor tissue greatly increases intimal proliferation (IP) after allogeneic transplantation. We sought to determine the relative role of PAI-1 and other fibrinolytic proteins in the development of IP. METHODS We used an abdominal aortic transplant model in mice to investigate IP in 3 groups of 6 recipients. In the isograft group, CBA/J strain mice were donors and recipients, donors for allograft group were C57BL/6J mice, and for the allograft/knockout group, C57BL/6J PAI-1 knockout mice. All groups received weekly injections of anti-CD8/CD4 monoclonal antibodies. IP was calculated at 50 days, and sections were analyzed for fibrinolytic proteins, messenger RNA (mRNA) and PAI-1 activity using immunohistochemistry (IHC), in situ hybridization (ISH), reverse transcription-polymerase chain reaction (RT-PCR), and Western blot analysis. RESULTS Significantly more IP developed in the allograft/knockout group vs the isograft (p < 0.001) and the allograft groups (p = 0.003). There was marked intimal expression of tissue plasminogen activator (tPA), urokinase PA (uPA), and uPA receptor (uPAR) proteins and mRNA in the allograft and allograft/knockout groups vs the isograft group. Allografts also showed significant intimal staining for PAI-1 protein and mRNA. RT-PCR demonstrated a stepwise increase in profibrinolytic protein mRNA from isograft to allograft to allograft/knockout groups, particularly uPA (p = 0.02) and uPAR (p = 0.016). Western blot data showed complementary findings. PAI-1 activity was persistently present in isograft and allograft animals, only. Intimas in allograft and allograft/knockout groups were primarily smooth muscle cells. CONCLUSIONS PAI-1 reduces IP by limiting smooth muscle cell activity, with little change in matrix composition likely by modulating profibrinolytic protein expression.
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Affiliation(s)
- Raymond L Benza
- Division of Cardiovascular Medicine, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212, USA.
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30
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Satomura K, Etsuda H, Hikita H, Nishikawa KI, Tabata H, Isoda K, Takase B, Ohsuzu F, Kurita A, Mizuno K. Plasma fibrinogen level is related to intimal pathology in coronary spastic angina. Int J Angiol 2011. [DOI: 10.1007/bf01616415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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31
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Togliatto G, Trombetta A, Dentelli P, Rosso A, Brizzi MF. MIR221/MIR222-driven post-transcriptional regulation of P27KIP1 and P57KIP2 is crucial for high-glucose- and AGE-mediated vascular cell damage. Diabetologia 2011. [PMID: 21461636 DOI: 10.1007/s00125-011-2125 -5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
AIMS/HYPOTHESIS MicroRNAs (miRNAs) are a novel group of small non-coding RNAs that regulate gene expression at the post-transcriptional level and act on their target mRNAs in a tissue- and cell-type-specific manner. Herein, the relevance of MIR221/MIR222 in high-glucose- and AGE-mediated vascular damage was investigated. METHODS Functional studies were performed using human mature endothelial cells and endothelial progenitor cells subjected to high glucose or AGE. Quantitative real-time amplification was performed to analyse MIR221/MIR222 expression in these experimental conditions. Luciferase assay was used to identify MIR221/MIR222 targets. Functional studies were performed in vitro and in vivo in mice using gain- and loss-of-function approaches. RESULTS Using an in vivo mouse model we demonstrated that exposure to AGE and high glucose impaired vessel formation. Moreover, in vitro functional studies revealed that both high glucose and AGE inhibit cell-cycle progression by modulating the expression of P27KIP1 (also known as CDKN1B) and P57KIP2 (also known as CDKN1C), which encode cyclin-dependent kinase inhibitor 1B (p27, Kip1) (P27KIP1) and cyclin-dependent kinase inhibitor 1C (p57, Kip2) (P57KIP2), respectively. Crucial to AGE- and high-glucose-mediated cell-cycle arrest was the downregulation of MIR221/MIR222 expression. Luciferase assay showed that MIR221 and MIR222 specifically bind to the P27KIP1 and P57KIP2 mRNA 3'-untranslated regions, implicating P27KIP1 and P57KIP2 as MIR221/MIR222 targets. These results were confirmed by gain-of-function experiments in vitro, and by injecting mice with endothelial cells overexpressing MIR221 and MIR222. CONCLUSIONS/INTERPRETATION We provide evidence that high-glucose- and AGE-induced inhibition of vascular cell proliferation is controlled by MIR221/MIR222-driven post-transcriptional regulation of P27KIP1 and P57KIP2. These data add further insight to the possible contribution of miRNAs in vascular damage mediated by a high-glucose environment.
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Affiliation(s)
- G Togliatto
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - A Trombetta
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - P Dentelli
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - A Rosso
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy
| | - M F Brizzi
- Department of Internal Medicine, University of Torino, Corso Dogliotti 14, 10126, Torino, Italy.
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Cryan LM, Rogers MS. Targeting the anthrax receptors, TEM-8 and CMG-2, for anti-angiogenic therapy. Front Biosci (Landmark Ed) 2011; 16:1574-88. [PMID: 21196249 DOI: 10.2741/3806] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The anthrax toxin receptors tumor endothelial marker-8 (TEM-8) and capillary morphogenesis gene-2 (CMG-2) are responsible for allowing entry of anthrax toxin into host cells. These receptors were first discovered due to their enhanced expression on endothelial cells undergoing blood vessel growth or angiogenesis in model systems. Inhibition of angiogenesis is an important strategy for current anti-cancer therapies and treatment of retinal diseases. Functional roles for TEM-8 and CMG-2 in angiogenesis have recently emerged. TEM-8 appears to regulate endothelial cell migration and tubule formation whereas a role for CMG-2 in endothelial proliferation has been documented. TEM-8 and CMG-2 bind differentially to extracellular matrix proteins including collagen I, collagen IV and laminin and these properties may be responsible for their apparent roles in regulating endothelial cell behavior during angiogenesis. TEM-8-binding moieties have also been suggested to be useful in selectively targeting anti-angiogenic and anti-tumorigenic therapies to tumor endothelium. Additionally, studies of modified forms of lethal toxin (LeTx) have demonstrated that targeted inhibition of MAPKs within tumor vessels may represent an efficacious anti-angiogenic strategy.
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Affiliation(s)
- Lorna M Cryan
- Department of Surgery, Children's Hospital Boston, Boston, MA 02115, USA
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Devendra GP, Hart SA, Whitney EJ, Krasuski RA. Impact of Fibrinogen Levels on Angiographic Progression and 12-Year Survival in the Armed Forces Regression Study. Angiology 2010; 61:333-7. [DOI: 10.1177/0003319709360525] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We assessed the role of fibrinogen levels on angiographic progression and long-term survival among 111 patients with coronary disease enrolled in the Armed Forces Regression Study (AFREGS). Baseline fibrinogen levels and quantitative coronary angiography were performed initially and at 30 months. Progression or nonregression of coronary disease was more prevalent in patients with high fibrinogen than patients with normal fibrinogen (66.1% vs 45.5%; P = .022). Twelve-year cardiovascular (CV) mortality was substantially higher if fibrinogen was elevated (17.9% vs 3.6%, P = .016). Among patients with elevated fibrinogen and angiographic progression or nonregression, there were 10 deaths and all were CV. Elevated levels of fibrinogen predict the angiographic progression of existing coronary disease and likelihood of CV death. Among patients with elevated levels of fibrinogen, angiographic progression identifies a significantly increased likelihood of a fatal CV event.
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Affiliation(s)
- Ganesh P. Devendra
- Division of Clinical Cardiology, Department of CV Medicine, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Stephen A. Hart
- Division of Clinical Cardiology, Department of CV Medicine, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Edwin J. Whitney
- Heart and Vascular Institute of San Antonio, San Antonio, TX, US
| | - Richard A. Krasuski
- Division of Clinical Cardiology, Department of CV Medicine, Cleveland Clinic Foundation, Cleveland, OH, USA,
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Velnar T, Bailey T, Smrkolj V. The wound healing process: an overview of the cellular and molecular mechanisms. J Int Med Res 2010; 37:1528-42. [PMID: 19930861 DOI: 10.1177/147323000903700531] [Citation(s) in RCA: 1224] [Impact Index Per Article: 87.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Wound healing remains a challenging clinical problem and correct, efficient wound management is essential. Much effort has been focused on wound care with an emphasis on new therapeutic approaches and the development of technologies for acute and chronic wound management. Wound healing involves multiple cell populations, the extracellular matrix and the action of soluble mediators such as growth factors and cytokines. Although the process of healing is continuous, it may be arbitrarily divided into four phases: (i) coagulation and haemostasis; (ii) inflammation; (iii) proliferation; and (iv) wound remodelling with scar tissue formation. The correct approach to wound management may effectively influence the clinical outcome. This review discusses wound classification, the physiology of the wound healing process and the methods used in wound management.
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Affiliation(s)
- Tomaz Velnar
- Department of Neurosurgery, University Medical Centre Maribor, Maribor, Slovenia.
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Shi Y, Wu Y, Bian C, Zhang W, Yang J, Xu G. Predictive value of plasma fibrinogen levels in patients admitted for acute coronary syndrome. Tex Heart Inst J 2010; 37:178-183. [PMID: 20401290 PMCID: PMC2851424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In recent years, researchers have investigated the relationship between biological markers of inflammation and prognosis in patients who experience acute coronary syndromes; however, the association between plasma fibrinogen and coronary heart disease is still not clear. We studied the prognostic value of fibrinogen, an acute-phase protein that is directly involved in thrombotic processes, by measuring plasma fibrinogen levels serially in 136 patients who had acute coronary syndromes, 142 patients who had stable coronary heart disease, and 82 healthy control participants. Plasma fibrinogen levels were significantly higher in the patients with acute coronary syndromes (302 +/- 90 mg/dL) than in the patients with stable coronary heart disease (274 +/- 61 mg/dL) and the control group (243 +/- 55 mg/dL) (both P <0.05). We also found significantly higher plasma fibrinogen levels in patients who developed clinical events than in those who did not, at 30 days and 2 years (P <0.05). Cox regression analysis showed that high C-reactive protein values and plasma fibrinogen levels > or =350 mg/dL were predictors of poor long-term prognosis. The adjusted odds ratio (95% confidence interval) for patients who had higher levels of plasma fibrinogen was 5.207. Plasma fibrinogen level can be used as an independent predictor of major adverse cardiac events during short- and long-term follow-up (P <0.01). The association is independent of other classical risk factors, such as age and sex.
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Affiliation(s)
- Yu Shi
- Department of Cardiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, People's Republic of China
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36
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Kumar VBS, Viji RI, Kiran MS, Sudhakaran PR. Modulation of expression of LDH isoenzymes in endothelial cells by laminin: implications for angiogenesis. J Cell Biochem 2008; 103:1808-25. [PMID: 18092337 DOI: 10.1002/jcb.21567] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Endothelial cell (EC) matrix interaction is critical in angiogenesis. Although matrix components can regulate the process of angiogenesis by acting as a reservoir of various cytokines, it is not clear if extracellular matrix (ECM) can modulate the production and activity of angiogenic cytokines. Investigations were therefore carried out to study the influence of the basement membrane (BM) protein, laminin (Ln) on the activity of vascular endothelial growth factor (VEGF), the major angiogenic cytokine, using isolated human umbilical vein ECs (HUVECs) in culture. Analysis of the biochemical markers of angiogenesis confirmed proangiogenic effect of Ln. The levels of VEGF protein and mRNA were not different in cells maintained on Ln, collagen I or polylysine substrata. Chorioallantoic membrane assay using VEGF isolated from cell extracts however revealed that Ln increased its angiogenic potency. Immunoblotting and HPLC analysis showed considerable reduction in poly adenosyl ribosylation of VEGF associated with a significant decrease in the levels of NAD+, in cells maintained on Ln substrata. Further, a shift in the isoenzymic pattern of LDH towards the B rich forms and an upregulation of LDH B gene were observed in cells maintained on Ln. Ln modulates expression of LDH gene through alpha(6)beta(4) integrin mediated downstream signaling involving p38 mitogen activated protein kinases (MAPK) pathway. It thus appears that Ln can affect aerobic metabolism of ECs by modulating the expression of LDH isoenzymes resulting in a decrease in the level of NAD+ that can cause a reduction in the poly adenosyl ribosylation of VEGF altering its angiogenic potency.
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Affiliation(s)
- V B Sameer Kumar
- Department of Biochemistry, University of Kerala, Thiruvananthapuram, Kerala 695581, India
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Zhao X, Okeke NL, Sharpe O, Batliwalla FM, Lee AT, Ho PP, Tomooka BH, Gregersen PK, Robinson WH. Circulating immune complexes contain citrullinated fibrinogen in rheumatoid arthritis. Arthritis Res Ther 2008; 10:R94. [PMID: 18710572 PMCID: PMC2575608 DOI: 10.1186/ar2478] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2008] [Revised: 07/22/2008] [Accepted: 08/18/2008] [Indexed: 11/17/2022] Open
Abstract
Introduction There is increasing evidence that autoantibodies and immune complexes (ICs) contribute to synovitis in rheumatoid arthritis (RA), yet the autoantigens incorporated in ICs in RA remain incompletely characterised. Methods We used the C1q protein to capture ICs from plasma derived from human RA and control patients. Antibodies specific for immunoglobulin were used to detect ICs, and fibrinogen antibodies were used to detect fibrinogen-containing ICs. RA and control plasma were separated by liquid chromatography, and fractions then characterised by ELISA, immunoblotting and mass spectrometry. Immunohistochemical staining was performed on rheumatoid synovial tissue. Results C1q-immunoassays demonstrated increased levels of IgG (p = 0.01) and IgM (p = 0.0002) ICs in plasma derived from RA patients possessing anti-cyclic citrullinated peptide (CCP+) autoantibodies as compared with healthy controls. About one-half of the anti-CCP+ RA possessed circulating ICs containing fibrinogen (p = 0.0004). Fractionation of whole RA plasma revealed citrullinated fibrinogen in the high molecular weight fractions that contained ICs. Positive correlations were observed between fibrinogen-containing ICs and anti-citrullinated fibrinogen autoantibodies, anti-CCP antibody, rheumatoid factor and certain clinical characteristics. Immunohistochemical staining demonstrated co-localisation of fibrinogen, immunoglobulin and complement component C3 in RA pannus tissue. Mass spectrometry analysis of immune complexes immunoprecipitated from RA pannus tissue lysates demonstrated the presence of citrullinated fibrinogen. Conclusion Circulating ICs containing citrullinated fibrinogen are present in one-half of anti-CCP+ RA patients, and these ICs co-localise with C3 in the rheumatoid synovium suggesting that they contribute to synovitis in a subset of RA patients.
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Affiliation(s)
- Xiaoyan Zhao
- GRECC, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
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Skubitz KM, Pambuccian S, Manivel JC, Skubitz APN. Identification of heterogeneity among soft tissue sarcomas by gene expression profiles from different tumors. J Transl Med 2008; 6:23. [PMID: 18460215 PMCID: PMC2412854 DOI: 10.1186/1479-5876-6-23] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Accepted: 05/06/2008] [Indexed: 11/26/2022] Open
Abstract
The heterogeneity that soft tissue sarcomas (STS) exhibit in their clinical behavior, even within histological subtypes, complicates patient care. Histological appearance is determined by gene expression. Morphologic features are generally good predictors of biologic behavior, however, metastatic propensity, tumor growth, and response to chemotherapy may be determined by gene expression patterns that do not correlate well with morphology. One approach to identify heterogeneity is to search for genetic markers that correlate with differences in tumor behavior. Alternatively, subsets may be identified based on gene expression patterns alone, independent of knowledge of clinical outcome. We have reported gene expression patterns that distinguish two subgroups of clear cell renal carcinoma (ccRCC), and other gene expression patterns that distinguish heterogeneity of serous ovarian carcinoma (OVCA) and aggressive fibromatosis (AF). In this study, gene expression in 53 samples of STS and AF [including 16 malignant fibrous histiocytoma (MFH), 9 leiomyosarcoma, 12 liposarcoma, 4 synovial sarcoma, and 12 samples of AF] was determined at Gene Logic Inc. (Gaithersburg, MD) using Affymetrix GeneChip® U_133 arrays containing approximately 40,000 genes/ESTs. Gene expression analysis was performed with the Gene Logic Genesis Enterprise System® Software and Expressionist software. Hierarchical clustering of the STS using our three previously reported gene sets, each generated subgroups within the STS that for some subtypes correlated with histology, and also suggested the existence of subsets of MFH. All three gene sets also recognized the same two subsets of the fibromatosis samples that we had found in our earlier study of AF. These results suggest that these subgroups may have biological significance, and that these gene sets may be useful for sub-classification of STS. In addition, several genes that are targets of some anti-tumor drugs were found to be differentially expressed in particular subsets of STS.
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Affiliation(s)
- Keith M Skubitz
- Department of Medicine, University of Minnesota Medical School, Masonic Cancer Center, Minneapolis, MN 55455, USA.
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Abstract
Endothelial cell migration is essential to angiogenesis. This motile process is directionally regulated by chemotactic, haptotactic, and mechanotactic stimuli and further involves degradation of the extracellular matrix to enable progression of the migrating cells. It requires the activation of several signaling pathways that converge on cytoskeletal remodeling. Then, it follows a series of events in which the endothelial cells extend, contract, and throw their rear toward the front and progress forward. The aim of this review is to give an integrative view of the signaling mechanisms that govern endothelial cell migration in the context of angiogenesis.
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Affiliation(s)
- Laurent Lamalice
- Le Centre de recherche en cancérologie, l'Université Laval, L'Hôtel-Dieu de Québec, Québec, Canada
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40
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Rizzi SC, Ehrbar M, Halstenberg S, Raeber GP, Schmoekel HG, Hagenmüller H, Müller R, Weber FE, Hubbell JA. Recombinant protein-co-PEG networks as cell-adhesive and proteolytically degradable hydrogel matrixes. Part II: biofunctional characteristics. Biomacromolecules 2007; 7:3019-29. [PMID: 17096527 DOI: 10.1021/bm060504a] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present here the biological performance in supporting tissue regeneration of hybrid hydrogels consisting of genetically engineered protein polymers that carry specific features of the natural extracellular matrix, cross-linked with reactive poly(ethylene glycol) (PEG). Specifically, the protein polymers contain the cell adhesion motif RGD, which mediates integrin receptor binding, and degradation sites for plasmin and matrix-metalloproteinases, both being proteases implicated in natural matrix remodeling. Biochemical assays as well as in vitro cell culture experiments confirmed the ability of these protein-PEG hydrogels to promote specific cellular adhesion and to exhibit degradability by the target enzymes. Cell culture experiments demonstrated that proteolytic sensitivity and suitable mechanical properties were critical for three-dimensional cell migration inside these synthetic matrixes. In vivo, protein-PEG matrixes were tested as a carrier of bone morphogenetic protein (rhBMP-2) to heal critical-sized defects in a rat calvarial defect model. The results underscore the importance of fine-tuning material properties of provisional therapeutic matrixes to induce cellular responses conducive to tissue repair. In particular, a lack of rhBMP or insufficient degradability of the protein-PEG matrix prevented healing of bone defects or remodeling and replacement of the artificial matrix. This work confirms the feasibility of attaining desired biological responses in vivo by engineering material properties through the design of single components at the molecular level. The combination of polymer science and recombinant DNA technology emerges as a powerful tool for the development of novel biomaterials.
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Affiliation(s)
- Simone C Rizzi
- Institute for Biomedical Engineering, Swiss Federal Institute of Technology and University of Zurich, Zurich, Switzerland
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41
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Zangi L, Rivkin R, Kassis I, Levdansky L, Marx G, Gorodetsky R. High-yield isolation, expansion, and differentiation of rat bone marrow-derived mesenchymal stem cells with fibrin microbeads. ACTA ACUST UNITED AC 2006; 12:2343-54. [PMID: 16968174 DOI: 10.1089/ten.2006.12.2343] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Fibrin microbeads (FMB), made of extensively cross-linked dense and partially denatured fibrin, were used as a matrix for efficient isolation of mesenchymal stem cells (MSC) from rat bone marrow (BM). After 2 days of incubation of FMB with whole BM in suspension, a high number of cells of mesenchymal origin attached to the FMB. On the 14th day after their transfer to plastic, the yield of the cells isolated via FMB was approximately 3-4 times higher than that obtained by currently used protocols based solely on plastic adhesion. This implies that the number of MSC in BM may be higher than previously reported. FACS analyses and immunostaining showed the mesenchymal characteristics of these cells by positive staining for fibronectin, vimentin, CD49E, and CD29. Immediately after isolation, less than 20% of the cells still expressed the hematopoietic markers CD11b and CD45. Most of these cells were eventually eliminated after further expansion of the isolated cells on plastic. Cells isolated via FMB were expanded in culture for more than 4 months and could be defined as MSC along this time period based on their ability to differentiate into precursors of mesenchymal tissues, such as osteogenic, adipogenic, and chondrogenic cells. Similar differentiation plasticity was observed in clones derived from single cells from whole MSC populations isolated via FMB. Based on our results we propose that FMB can serve as a 3-dimensional biodegradable matrix for isolation, differentiation, and possibly implantation of MSC for tissue regeneration.
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Affiliation(s)
- Lior Zangi
- Biotechnology and Radiobiology Laboratory, Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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42
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Davis GE, Senger DR. Endothelial extracellular matrix: biosynthesis, remodeling, and functions during vascular morphogenesis and neovessel stabilization. Circ Res 2005; 97:1093-107. [PMID: 16306453 DOI: 10.1161/01.res.0000191547.64391.e3] [Citation(s) in RCA: 866] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The extracellular matrix (ECM) is critical for all aspects of vascular biology. In concert with supporting cells, endothelial cells (ECs) assemble a laminin-rich basement membrane matrix that provides structural and organizational stability. During the onset of angiogenesis, this basement membrane matrix is degraded by proteinases, among which membrane-type matrix metalloproteinases (MT-MMPs) are particularly significant. As angiogenesis proceeds, ECM serves essential functions in supporting key signaling events involved in regulating EC migration, invasion, proliferation, and survival. Moreover, the provisional ECM serves as a pliable scaffold wherein mechanical guidance forces are established among distal ECs, thereby providing organizational cues in the absence of cell-cell contact. Finally, through specific integrin-dependent signal transduction pathways, ECM controls the EC cytoskeleton to orchestrate the complex process of vascular morphogenesis by which proliferating ECs organize into multicellular tubes with functional lumens. Thus, the composition of ECM and therefore the regulation of ECM degradation and remodeling serves pivotally in the control of lumen and tube formation and, finally, neovessel stability and maturation.
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Affiliation(s)
- George E Davis
- Department of Pathology, Texas A&M University System Health Science Center, College Station, USA
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43
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Wang H, Workman G, Chen S, Barker TH, Ratner BD, Sage EH, Jiang S. Secreted protein acidic and rich in cysteine (SPARC/osteonectin/BM-40) binds to fibrinogen fragments D and E, but not to native fibrinogen. Matrix Biol 2005; 25:20-6. [PMID: 16263253 DOI: 10.1016/j.matbio.2005.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2005] [Revised: 07/18/2005] [Accepted: 09/15/2005] [Indexed: 11/28/2022]
Abstract
Secreted protein acidic and rich in cysteine (SPARC/osteonectin/BM-40) is a matricellular protein that functions in wound healing. Fibrinogen is a plasma protein involved in many aspects of wound healing, such as inflammation, fibrosis and thrombosis. In this study, the binding of SPARC to both native and plasmin-cleaved fibrinogen under physiological conditions was examined by the use of a surface plasmon resonance (SPR) biosensor. We show that SPARC binds to plasmin-cleaved fibrinogen, but not to native fibrinogen. SPARC binds to both fibrinogen fragments D and E fg D and fg E with similar dissociation constants (8.67 x 10(-8) M for Fg D and 1.61 x 10(-7) M for Fg E). Results from endothelial cell proliferation assays show that the binding of SPARC to Fg E suppressed the inhibition of proliferation by SPARC, whereas the binding of SPARC to Fg D did not influence the activity of SPARC on the cell cycle. The interaction of SPARC with fibrinogen fragments D and E, which are produced as a result of proteolytic activation of fibrinolysis, reveals potential storage sites in provisional extracellular matrix for SPARC during the wound healing process and indicates a regulatory role of SPARC in fibrinolysis and angiogenesis.
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Affiliation(s)
- Hua Wang
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA
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Abstract
Angiogenesis, the development of new blood vessels from the existing vasculature, and haemostasis, the coagulation cascade leading to formation of a clot, are among the most consistent host responses associated with cancer. Importantly, these two pathways interrelate, with blood coagulation and fibrinolysis influencing tumor angiogenesis directly, thereby contributing to tumor growth. Moreover, many endogenous inhibitors of angiogenesis are found within platelets or harboured as cryptic fragments of haemostatic proteins. In this review we outline ways in which angiogenesis is coordinated and regulated by haemostasis in human cancer. Then we detail the experimental and pre-clinical evidence for the ability of many of these endogenous proteins to inhibit tumor angiogenesis and thus their potential to be anti-cancer agents, with particular reference to any clinical trials.
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Affiliation(s)
- Carolyn A Staton
- Microcirculation Research Group, University of Sheffield Medical School, Sheffield, S10 2RX, UK
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Sahni A, Francis CW. Stimulation of endothelial cell proliferation by FGF-2 in the presence of fibrinogen requires αvβ3. Blood 2004; 104:3635-41. [PMID: 15297314 DOI: 10.1182/blood-2004-04-1358] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have shown previously that fibrin(ogen) binding potentiates the capacity of fibroblast growth factor 2 (FGF-2) to stimulate endothelial cell (EC) proliferation. We have now investigated the receptor requirement for EC proliferation by fibrinogen-bound FGF-2. ECs were cultured with 25 ng/mL FGF-2 with or without 10 μg/mL fibrinogen, and proliferation was measured as 3H-thymidine incorporation. Proliferation was increased 2.4 ± 0.5-fold over medium alone with FGF-2 and increased significantly more to 4.0 ± 0.7-fold with fibrinogen and FGF-2 (P < .005). Addition of 7E3 or LM609, antibodies to αvβ3, inhibited EC proliferation with fibrinogen-bound FGF-2 by 80% ± 8% (P < .001) or 67% ± 14% (P < .002), respectively, to levels significantly less than that observed with FGF-2 alone (P < .001). Neither LM609 nor 7E3 exhibited any inhibition of activity with FGF-2 alone. Peptide GRGDS caused dose-dependent inhibition of proliferation by fibrinogen-bound FGF-2 of 31% ± 8%, 45% ± 9%, and 68% ± 11% at 0.25, 0.5, and 1 mM, respectively. Coimmunoprecipitation and immunofluorescence studies demonstrated a direct specific association between αvβ3 and FGF receptor 1 (FGFR1) in ECs and fibroblasts when exposed to both FGF-2 and fibrinogen but not with vitronectin. We conclude that fibrinogen binding of FGF-2 enhances EC proliferation through the coordinated effects of colocalized αvβ3 and FGFR1.
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Affiliation(s)
- Abha Sahni
- Hematology/Oncology Unit, Department of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Ave, Rochester, NY, USA.
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46
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Staton CA, Brown NJ, Lewis CE. The role of fibrinogen and related fragments in tumour angiogenesis and metastasis. Expert Opin Biol Ther 2004; 3:1105-20. [PMID: 14519075 DOI: 10.1517/14712598.3.7.1105] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Angiogenesis, the development of new blood vessels from existing vasculature, involves the migration, proliferation and differentiation of endothelial cells and is crucial for the growth and mestastasis of tumours. A specific association between cancer and the haemostatic system has long been recognised. Haemostatic mechanisms regulate blood flow by controlling platelet adhesion and fibrin deposition, and a number of haemostatic proteins have been shown to regulate angiogenesis, either directly, by interacting with endothelial cells themselves, or indirectly, by interacting with other regulators of angiogenesis. The polypeptide fibrinogen is the central protein in the haemostasis pathway and is found deposited in the majority of human and experimental animal tumours. In this review, the evidence for the ability of fibrinogen and various protein/peptide fragment derivatives to modulate angiogenic mechanisms in vitro and to affect tumour growth and metastasis in vivo is discussed.
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Affiliation(s)
- Carolyn A Staton
- Tumour Targeting Group, University of Sheffield Medical School, Sheffield, S10 2RX, UK
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Sottile J. Regulation of angiogenesis by extracellular matrix. Biochim Biophys Acta Rev Cancer 2004; 1654:13-22. [PMID: 14984764 DOI: 10.1016/j.bbcan.2003.07.002] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2003] [Accepted: 07/04/2003] [Indexed: 10/26/2022]
Abstract
During angiogenesis, endothelial cell growth, migration, and tube formation are regulated by pro- and anti-angiogenic factors, matrix-degrading proteases, and cell-extracellular matrix interactions. Temporal and spatial regulation of extracellular matrix remodeling events allows for local changes in net matrix deposition or degradation, which in turn contributes to control of cell growth, migration, and differentiation during different stages of angiogenesis. Remodeling of the extracellular matrix can have either pro- or anti-angiogenic effects. Extracellular matrix remodeling by proteases promotes cell migration, a critical event in the formation of new vessels. Matrix-bound growth factors released by proteases and/or by angiogenic factors promote angiogenesis by enhancing endothelial migration and growth. Extracellular matrix molecules, such as thrombospondin-1 and -2, and proteolytic fragments of matrix molecules, such as endostatin, can exert anti-angiogenic effects by inhibiting endothelial cell proliferation, migration and tube formation. In contrast, other matrix molecules promote endothelial cell growth and morphogenesis, and/or stabilize nascent blood vessels. Hence, extracellular matrix molecules and extracellular matrix remodelling events play a key role in regulating angiogenesis.
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Affiliation(s)
- Jane Sottile
- Center for Cardiovascular Research, Department of Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 679, Rochester, NY 14642, USA.
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Sahni A, Guo M, Sahni SK, Francis CW. Interleukin-1beta but not IL-1alpha binds to fibrinogen and fibrin and has enhanced activity in the bound form. Blood 2004; 104:409-14. [PMID: 15039285 DOI: 10.1182/blood-2004-01-0126] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Fibrin is formed at sites of injury or inflammation and provides the temporary matrix to support vascular cell responses that are also mediated by cytokines including interleukin-1 (IL-1). We have shown previously that fibroblast growth factor 2 (FGF-2) binds with high affinity to fibrin(ogen). Because IL-1 has a structure similar to FGF-2, we have investigated the possible binding of IL-1 to fibrin(ogen). Experiments using IL-1 immobilized on Sepharose beads and soluble iodine 125 ((125)I)-labeled fibrinogen demonstrated no specific interaction of IL-1alpha with fibrinogen, but IL-1beta showed saturable and specific binding. Scatchard analysis indicated a single binding site with an apparent K(d) = 1.5 nM and a maximum molar binding ratio of IL-1beta to fibrinogen of 1.8:1. Binding of (125)I-IL-1beta to Sepharose-immobilized fibrinogen also demonstrated a single binding site with an apparent K(d) of 3.5 nM. IL-1beta also bound specifically to fibrin monomer and polymerized fibrin with apparent K(d)s of 3.4 nM and 2.3 nM, respectively. IL-1beta displaced FGF-2 for binding to fibrin, indicating an interaction with the same or a closely related site. Compared with free form, fibrinogen-bound IL-1beta stimulated increased activation of endothelial cell nuclear factor kappaB (NF-kappaB), monocyte chemoattractant protein-1 (MCP-1) secretion, and nitric oxide (NO) synthesis. We conclude that IL-1beta binds with high affinity to fibrin(ogen) and demonstrates increased activity in the bound form.
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Affiliation(s)
- Abha Sahni
- Department of Medicine, PO Box 610, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY 14642, USA.
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Kóbori L, Németh T, Nemes B, Dallos G, Sótonyi P, Fehérvári I, Patonai A, Slooff MJH, Járay J, De Jong KP. Experimental vascular graft for liver transplantation. Acta Vet Hung 2003; 51:529-37. [PMID: 14680065 DOI: 10.1556/avet.51.2003.4.11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Hepatic artery thrombosis is a major cause of graft failure in liver transplantation. Use of donor interponates are common, but results are controversial because of necrosis or thrombosis after rejection. Reperfusion injury, hypoxia and free radical production determinate the survival. The aim of the study was to create an 'ideal' arterial interponate. Autologous, tubular graft lined with mesothelial cells, prepared from the posterior rectus fascia sheath, was used for iliac artery replacement in eight mongrel dogs for six months under immunosuppression. Patency rate was followed by Doppler ultrasound. Eight grafts remained patent and another two are patent after one year. The patency rate was good (median Doppler flow: 370 cm/sec) and there was no necrosis, thrombosis or aneurysmatic formation. The grafts showed viable morphology with neoangiogenesis, appearance of elastin, smooth muscle and endothelial cells. Electron microscopy showed intact mitochondrial structures without signs of hypoxia. Tissue oxygenation was good in all cases with normal (< 30 ng/ml) myeloperoxidase production. In conclusion, this autologous graft presents good long-term patency rate. Viability, arterialisation and low thrombogenicity are prognostic factors indicating usability of the graft in the clinical practice without the risk of rejection. Further investigations such as cell cultures and standardisation are necessary.
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Affiliation(s)
- L Kóbori
- Transplantation and Surgical Department, Semmelweis University, H-1082 Budapest, Baross u. 23-25, Hungary.
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Tzoneva R, Groth T, Altankov G, Paul D. Remodeling of fibrinogen by endothelial cells in dependence on fibronectin matrix assembly. Effect of substratum wettability. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2002; 13:1235-1244. [PMID: 15348671 DOI: 10.1023/a:1021131113711] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The endothelization of cardiovascular implants is desirable to improve their blood compatibility. The capacity of the endothelial cells to attach, migrate, proliferate and function on the implant surface depends on the presence of matrix proteins such as fibronectin (FN) and fibrinogen (FNG). In this study, we show that the deposition of fibrinogen into extracellular matrix-like structures by human umbilical vein endothelial cells (HUVEC) is dependent on FN matrix formation. We found further that the process of organization of both adsorbed and soluble FN and FNG is dependent on the wettability of materials since it was observed only on a hydrophilic and not on a hydrophobic model surface. beta(3) integrin was involved in the process of cell attachment to adsorbed FNG, while the mechanism of FNG fibrillogenesis required the activity of the beta(1) integrin. Studies of EC morphology showed the predominant peripheral organization of actin filaments and the formation of distinct leading and trailing cell edges suggesting a motile phenotype of cells when they are seeded on FNG. In summary, we concluded that adsorbed fibrinogen may enhance the motility of HUVEC and that soluble FNG requires FN matrix assembly to be organized in fibrilar structures.
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Affiliation(s)
- Rumiana Tzoneva
- GKSS Forschungszentrum, Institut für Chemie, Abteilung Membranforschung, Kantstrasse 55, 14513 Teltow, Germany
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