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Guo J, Wang T, Yan Z, Ji D, Li J, Pan H. Preparation and evaluation of dual drug-loaded nanofiber membranes based on coaxial electrostatic spinning technology. Int J Pharm 2022; 629:122410. [DOI: 10.1016/j.ijpharm.2022.122410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 11/02/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
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Zhang M, Dang P, Liu Y, Qiao B, Sun Z. Noncoding RNAs in pyroptosis and cancer progression: Effect, mechanism, and clinical application. Front Immunol 2022; 13:982040. [PMID: 36059539 PMCID: PMC9428448 DOI: 10.3389/fimmu.2022.982040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022] Open
Abstract
Cell death is generally classified into two categories: regulated cell death (RCD) and accidental cell death (ACD). In particular, RCD is a kind of genetically controlled process, including programmed apoptotic death and programmed necrotic death. Pyroptosis, an inflammatory form of programmed necrotic death, causes inflammation in cells. The influence of pyroptosis on tumor is complicated. On the one hand, pyroptosis triggers antitumor response. On the other hand, pyroptosis may induce carcinogenesis. Pyroptosis is initiated by various factors, especially non-coding RNAs. In this review, we discuss the effects of ncRNAs on pyroptosis and the mechanisms by which ncRNAs initiate pyroptosis. Moreover, we introduce the influence of ncRNA on tumor resistance via pyroptosis. Additionally, we summarize how ncRNA-associated pyroptosis modulates the tumor microenvironment (TME) and thereafter triggers antitumor immune response. Finally, pyroptosis-related ncRNAs are promising diagnostic and immunotherapeutic biomarkers and therapeutic targets
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Affiliation(s)
- Menghui Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Pengyuan Dang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yang Liu
- Department of Radiotherapy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
- *Correspondence: Zhenqiang Sun, ; Bingbing Qiao, ; Yang Liu,
| | - Bingbing Qiao
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Zhenqiang Sun, ; Bingbing Qiao, ; Yang Liu,
| | - Zhenqiang Sun
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Zhenqiang Sun, ; Bingbing Qiao, ; Yang Liu,
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Abstract
The metastasis-promoting S100A4 protein, a member of the S100 family, has recently been discovered as a potent factor implicated in various inflammation-associated diseases. S100A4 is involved in a range of biological functions such as angiogenesis, cell differentiation, apoptosis, motility, and invasion. Moreover, S100A4 is also a potent trigger of inflammatory processes and induces the release of cytokines and growth factors under different pathological conditions.Indeed, the release of S100A4 upon stress and mainly its pro-inflammatory role emerges as the most decisive activity in disease development, such as rheumatoid arthritis (RA), systemic sclerosis (SSc) allergy, psoriasis, and cancer. In the scope of this review, we will focus on the role of S100A4 as a mediator of pro-inflammatory pathways and its associated biological processes involved in the pathogenesis of various human noncommunicable diseases (NCDs) including cancer.
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Zhuang B, Li W, Wang W, Lin M, Xu M, Xie X, Lu M, Xie X. Contrast-enhanced ultrasonography improves the diagnostic specificity for gallbladder-confined focal tumors. Abdom Radiol (NY) 2018; 43:1134-1142. [PMID: 28765975 DOI: 10.1007/s00261-017-1268-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE To investigate the value of contrast-enhanced ultrasonography (CEUS) in the differential diagnosis of malignant and benign focal gallbladder diseases confined to the gallbladder wall. METHODS From July 2006 to May 2016, 88 patients (mean age 48.8 years; age range 18-77 years) were enrolled. All patients had focal gallbladder lesions confined to the gallbladder wall according to CEUS examination. The conventional ultrasound and CEUS characteristics of the lesions were evaluated, and diagnostic performance was evaluated via receiver-operating characteristic (ROC) analysis. RESULTS Multiple logistic regression analysis showed that three characteristics, an irregular shape, branched intralesional vessels and hypo-enhancement in the late phase, were features indicating a malignant gallbladder disease (all P < 0.05). When combining any two of these three features, diagnostic specificity improved from 51.5%-77.3% to 92.4% (P < 0.05 for all), and the area under the ROC (AUROC) curve improved from 0.735-0.874 to 0.917, without a significant loss of sensitivity. CONCLUSIONS CEUS features have greater specificity than those from conventional US for the differentiation of benign and malignant gallbladder diseases confined to the gallbladder wall, without a loss of sensitivity.
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The Fate of the Tumor in the Hands of Microenvironment: Role of TAMs and mTOR Pathway. Mediators Inflamm 2016; 2016:8910520. [PMID: 28074082 PMCID: PMC5198177 DOI: 10.1155/2016/8910520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/19/2016] [Accepted: 11/24/2016] [Indexed: 11/17/2022] Open
Abstract
Since 2000, written with elegance and accuracy, Hanahan and Weinberg have proposed six major hallmarks of cancer and, together, they provide great advances to the understanding of tumoral biology. Our knowledge about tumor behavior has improved and the investigators have now recognized that inflammatory microenvironment may be a new feature for the tumor entities. Macrophages are considered as an important component of tumoral microenvironment. Biologically, two forms of activated macrophages can be observed: classically activated macrophages (M1) and alternative activated macrophages (M2). Despite the canonical pathways that control this puzzle of macrophages polarization, recently, mTOR signaling pathway has been implicated as an important piece in determining the metabolic and functional differentiation of M1 and M2 profiles. Currently, it is believed that macrophages related to tumoral microenvironment present an “M2-like” feature promoting an immunosuppressive microenvironment enhancing tumoral angiogenesis, growth, and metastasis. In the present review we discuss the role of macrophages in the tumor microenvironment and the role of mTOR pathway in M1 and M2 differentiation. We also discuss the recent findings in M1 and M2 polarization as a possible target in the cancer therapy.
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Ping YF, Zhang X, Bian XW. Cancer stem cells and their vascular niche: Do they benefit from each other? Cancer Lett 2016; 380:561-567. [DOI: 10.1016/j.canlet.2015.05.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 04/07/2015] [Accepted: 05/08/2015] [Indexed: 12/22/2022]
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Triterpenes from Ardisia cf. Elliptica (Subgenus Tinus) Limit Vascular Density and Promote von Willebrand Factor Expression on Duck Chorioallantoic Membrane. Pharm Chem J 2015. [DOI: 10.1007/s11094-015-1216-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang G, Zhong J, Li J, Zhang X, Duan S, Fu M, Wang F, Jiang X. Computer-aided three-dimensional reconstruction of main vessels in hemangiomas. Int J Clin Exp Med 2015; 8:1747-54. [PMID: 25932103 PMCID: PMC4402750 DOI: pmid/25932103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 01/23/2015] [Indexed: 02/05/2023]
Abstract
This study aimed to investigate three-dimensional (3-D) morphological features of the main vessel architecture of human hemangioma. Serial sections of specimens from three cases of children hemangioma were stained with hematoxylin and eosin (HE) to visualize the vessels. Serial images were taken and processed with computer-assisted 3-D reconstruction. Partial 3-D structure reconstruction of vessel morphology in hemangioma revealed strange distribution and branching, which were different from normal vessels of the human skin. The 3-5 microvascular was most common in hemangioma. We observed respective characteristics of three cases: 1 case showed uniform artery vein distribution accompanied by running trend; 1 case showed main artery distribution and less vein distribution, and there were many blood sinus in the shallow surface close to the skin; another case showed vein distribution in the middle of antrum. In conclusion, digital vascular model of 3-D structure of main vessel hemangioma provides a new way for the diagnosis and treatment of hemangioma of children.
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Affiliation(s)
- Guanghuan Wang
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Jun Zhong
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Jianhong Li
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Xuan Zhang
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Shouxing Duan
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Maxian Fu
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Fusheng Wang
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
| | - Xuewu Jiang
- Department of Pediatric Surgery, Shantou University Medical College Shantou 515041, Guangdong Province, P.R China
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Sun H, Guo D, Su Y, Yu D, Wang Q, Wang T, Zhou Q, Ran X, Zou Z. Hyperplasia of pericytes is one of the main characteristics of microvascular architecture in malignant glioma. PLoS One 2014; 9:e114246. [PMID: 25478951 PMCID: PMC4257691 DOI: 10.1371/journal.pone.0114246] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 11/05/2014] [Indexed: 11/18/2022] Open
Abstract
Objectives To investigate the role of pericytes in constructing the malformed microvessels (MVs) and participating microvascular architecture heterogeneity of glioma. Methods Forty human glioma tissue samples (WHO grade II-IV) were included in present study. Observation of blood vessel patterns, quantitative analysis of endothelial cells (ECs)- and pericyte-labeled MVs and comparison between malignant grades based on single- or double-immunohistochemical staining. The MV number density (MVND), microvascular pericyte number density (MPND), and microvascular pericyte area density (MPAD) were calculated. The expression of PDGFβ was also scored after immunostaining. Results In grade II glioma, most of tumor MVs were the thin-wall CD34+ vessels with near normal morphology. In addition to thin-wall CD34+ MVs, more thick-wall MVs were found in grade III glioma, which often showed α-SMA positive. Most of MVs in grade IV glioma were in the form of plexus, curled cell cords and glomeruloid microvascular proliferation while the α-SMA+ cells were the main components. The MVs usually showed disordered arrangement, loose connection and active cell proliferation as shown by Ki67 and α-SMA coexpression. With the increase of glioma grades, the α-SMA+ MVND, CD34+ MVND and MPND were significantly augmented although the increase of CD34+ MVND but not MPAD was statistically insignificant between grade III and IV. It was interesting that some vessel-like structures only consist of α-SMA+ cells, assuming the guiding role of pericytes in angiogenesis. The expression level of PDGFβ was upregulated and directly correlated with the MPND in different glioma grades. Conclusion Hyperplasia of pericytes was one of the significant characteristics of malignant glioma and locally proliferated pericytes were the main constituent of MVs in high grade glioma. The pathological characteristics of pericytes could be used as indexes of malignant grades of glioma.
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Affiliation(s)
- Huiqin Sun
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Chongqing, China
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing, China
- * E-mail: (HS); (ZZ)
| | - Deyu Guo
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing, China
| | - Yongping Su
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Dongmei Yu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing, China
| | - Qingliang Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing, China
| | - Tao Wang
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Qing Zhou
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Xinze Ran
- Institute of Combined Injury, State Key Laboratory of Trauma, Burns and Combined Injury, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Zhongmin Zou
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, China
- * E-mail: (HS); (ZZ)
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Gagliardi F, Narayanan A, Reni M, Franzin A, Mazza E, Boari N, Bailo M, Zordan P, Mortini P. The role of CXCR4 in highly malignant human gliomas biology: current knowledge and future directions. Glia 2014; 62:1015-23. [PMID: 24715652 DOI: 10.1002/glia.22669] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 03/20/2014] [Accepted: 03/21/2014] [Indexed: 11/06/2022]
Abstract
Given the extensive histomorphological heterogeneity of high-grade gliomas, in terms of extent of invasiveness, angiogenesis, and necrosis and the poor prognosis for patients despite the advancements made in therapeutic management. The identification of genes associated with these phenotypes will permit a better definition of glioma heterogeneity, which may ultimately lead to better treatment strategies. CXCR4, a cell surface chemokine receptor, is implicated in the growth, invasion, angiogenesis and metastasis in a wide range of malignant tumors, including gliomas. It is overexpressed in glioma cells according to tumor grade and in glioma tumor initiating cells. There have been various reports suggesting that CXCR4 is required for tumor proliferation, invasion, angiogenesis, and modulation of the immune response. It may also serve as a prognostic factor in characterizing subsets of glioblastoma multiforme, as patients with CXCR4-positive gliomas seem to have poorer prognosis after surgery. Aim of this review was to analyze the current literature on biological effects of CXCR4 activity and its role in glioma pathogenesis. A better understanding of CXCR4 pathway in glioma will lead to further investigation of CXCR4 as a novel putative therapeutic target.
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Affiliation(s)
- Filippo Gagliardi
- Department of Neurosurgery, San Raffaele Scientific Institute, Vita-Salute University, Milan, Italy
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Wang L, Wang D, Fei X, Ruan M, Chai W, Xu L, Li X. A rim-enhanced mass with central cystic changes on MR imaging: how to distinguish breast cancer from inflammatory breast diseases? PLoS One 2014; 9:e90355. [PMID: 24598845 PMCID: PMC3943946 DOI: 10.1371/journal.pone.0090355] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 01/28/2014] [Indexed: 12/16/2022] Open
Abstract
Objective To evaluate the capacity of magnetic resonance imaging (MRI) to distinguish breast cancer from inflammatory breast diseases manifesting as a rim-enhanced mass with central cystic changes. Materials and Methods Forty cases of breast cancer and 52 of inflammatory breast diseases showing a rim-enhanced mass with central cystic changes were retrospectively reviewed. All cases underwent dynamic contrast-enhanced MRI and 31 of them underwent diffusion-weighted imaging (DWI). Morphological features, dynamic parameters and apparent diffusion coefficient (ADC) values were comparatively analyzed using univariate analysis and binary logistic regression analysis. Results Breast cancer had a significantly thicker wall than the inflammatory breast diseases (P<0.001) while internal enhancing septa were more common in inflammatory breast diseases (P = 0.003). On DWI, 86.7% of breast cancers demonstrate a peripheral hyperintensity whereas 93.8% of inflammatory breast diseases had a central hyperintensity (P<0.001). Compared to the inflammatory breast diseases, breast cancers had a lower ADC value for the wall (1.09×10−3 mm2/s vs 1.42×10−3 mm2/s, P<0.001) and a higher ADC value for the central part (1.94×10−3 mm2/s vs 1.05×10−3 mm2/s, P<0.001). Conclusions Both breast cancer and inflammatory breast diseases could present as a rim-enhanced mass with central cystic changes on MRI. Integrated analysis of the MR findings can allow for an accurate differential diagnosis.
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Affiliation(s)
- Lijun Wang
- Department of Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dengbin Wang
- Department of Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- * E-mail:
| | - Xiaochun Fei
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mei Ruan
- Department of Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weimin Chai
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Xu
- Department of Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxiao Li
- Department of Radiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Maruotti N, Annese T, Cantatore FP, Ribatti D. Macrophages and angiogenesis in rheumatic diseases. Vasc Cell 2013; 5:11. [PMID: 23725043 PMCID: PMC3680215 DOI: 10.1186/2045-824x-5-11] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 04/26/2013] [Indexed: 12/31/2022] Open
Abstract
Angiogenesis plays a key role in several rheumatic diseases, including rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, systemic sclerosis, systemic lupus erythematosus, and vasculitides. An imbalance between angiogenic inducers and inhibitors seems to be a critical factor in pathogenesis of these diseases. Macrophages promote angiogenesis during rheumatoid arthritis. In addition, macrophages can produce a variety of pro-angiogenic factors that have been associated with the angiogenic response occurring during other rheumatic diseases. Lastly, macrophages could be a target in the treatment of rheumatoid arthritis and other rheumatic diseases. Nevertheless, further studies are needed to better elucidate the exact role of macrophage in angiogenesis in these diseases.
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Affiliation(s)
- Nicola Maruotti
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School- Ospedale “ D’Avanzo”, Foggia, Italy
| | - Tiziana Annese
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Piazza Giulio Cesare, 11, Policlinico, 70124, Bari, Italy
| | - Francesco Paolo Cantatore
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School- Ospedale “ D’Avanzo”, Foggia, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Piazza Giulio Cesare, 11, Policlinico, 70124, Bari, Italy
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Triterpenes from Ardisia cf. elliptica (subgenus Tinus) limit vascular density and promote von Willebrand factor expression on duck chorioallantoic membrane. Pharm Chem J 2013. [DOI: 10.1007/s11094-013-0894-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Angio-suppressive triterpenoids from Ardisia cf. elliptica (subgenus Tinus) on duck (Anas platyrynchosL.) chorioallantoic membrane. Chin J Nat Med 2013; 11:128-38. [DOI: 10.1016/s1875-5364(13)60039-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Indexed: 11/19/2022]
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Emerging avenues linking inflammation, angiogenesis and Sjögren's syndrome. Cytokine 2013; 61:693-703. [PMID: 23340181 DOI: 10.1016/j.cyto.2012.12.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 12/10/2012] [Accepted: 12/19/2012] [Indexed: 12/28/2022]
Abstract
Sjögren's syndrome (SS) is an autoimmune disease characterized by an inflammatory mononuclear infiltration and the destruction of epithelial cells of the lachrymal and salivary glands. The aetiology is unknown. The expression "autoimmune epithelitis" has been proposed as an alternative to SS, in view of the emerging central role of the epithelial cells in the disease pathogenesis. At the biomolecular level, the epithelial cells play an important role in triggering the autoimmune condition via antigen presentation, apoptosis, and chemokine and cytokines release. Inflammation and angiogenesis are frequently coupled in the pathological conditions associated to autoimmune diseases, and an angiogenic imbalance contributes to the pathogenesis of a number of inflammatory disorders. This work reviews the current knowledge of the molecular and cellular mechanisms underlying the pathogenesis of the inflammatory reactions that characterize SS. The literature and our data on the role of angiogenesis in the pathophysiology of the disease are discussed.
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Yang XJ, Chen GL, Yu SC, Xu C, Xin YH, Li TT, Shi Y, Gu A, Duan JJ, Qian C, Cui YH, Zhang X, Bian XW. TGF-β1 enhances tumor-induced angiogenesis via JNK pathway and macrophage infiltration in an improved zebrafish embryo/xenograft glioma model. Int Immunopharmacol 2012; 15:191-8. [PMID: 23261760 DOI: 10.1016/j.intimp.2012.12.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 11/05/2012] [Accepted: 12/04/2012] [Indexed: 12/13/2022]
Abstract
Angiogenesis plays a crucial role at the early stage of tumorigenesis and tumor progression. A suitable model will be useful not only for the clarification of the underlying molecular mechanisms, but also for high-throughput identification of novel anti-angiogenesis compounds. Here, we established a zebrafish model for the purpose to investigate angiogenesis and screen anti-angiogenic compounds. Glioma U87 cells expressing red fluorescent protein (RFP) were transplanted in fli:GFP transgenic zebrafish embryos where significant angiogenesis was observed. TGF-β1 enhanced glioma-induced angiogenesis, which was inhibited by JNK inhibitor SP600125 but not p38 MAPK inhibitor SB202190, ERK inhibitor PD98059, or PI3K inhibitor LY294002, indicating the important role of TGF-β1 and JNK pathways in this process. Moreover, the glioma-induced angiogenesis was associated with macrophage infiltration that was further enhanced by TGF-β1. Therefore, our zebrafish model provides a powerful in vivo tool for the investigation of tumor-induced angiogenesis, and a cost-effective system for high-throughput screening of anti-angiogenic compounds.
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Affiliation(s)
- Xiao-jun Yang
- Key Laboratory of Tumor Immunopathology, Third Military Medical University, Ministry of Education of China, China
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Mikuła-Pietrasik J, Kuczmarska A, Kucińska M, Murias M, Wierzchowski M, Winckiewicz M, Staniszewski R, Bręborowicz A, Książek K. Resveratrol and its synthetic derivatives exert opposite effects on mesothelial cell-dependent angiogenesis via modulating secretion of VEGF and IL-8/CXCL8. Angiogenesis 2012; 15:361-76. [PMID: 22451299 PMCID: PMC3409370 DOI: 10.1007/s10456-012-9266-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Accepted: 03/13/2012] [Indexed: 11/19/2022]
Abstract
We examined the effect of resveratrol (RVT) and its two derivatives (3,3′,4,4′-tetrahydroxy-trans-stilbene and 3,3′,4,4′,5,5′-hexahydroxy-trans-stilbene) on human peritoneal mesothelial cell (HPMC)-dependent angiogenesis in vitro. To this end, angiogenic activity of endothelial cells (HUVEC, HMVEC, and HMEC-1) was monitored upon their exposure to conditioned medium (CM) from young and senescent HPMCs treated with stilbenes or to stilbenes themselves. Results showed that proliferation and migration of endothelial cells were inhibited in response to indirect (HPMC-dependent) or direct RVT activity. This effect was associated with decreased secretion of VEGF and IL-8/CXCL8 by HPMCs treated with RVT, which confirmed the experiments with recombinant forms of these angiogenic agents. Angiogenic activity of endothelial cells treated with CM from HPMCs exposed to RVT analogues was more effective. Improved migration was particularly evident in cells exposed to CM from senescent HPMCs. Upon direct treatment, RVT derivatives stimulated proliferation (but not migration) of HUVECs, and failed to affect the behaviour of HMVEC and HMEC-1 cells. These compounds stimulated production of VEGF and IL-8/CXCL8 by HPMCs. Studies with neutralizing antibodies against angiogenic factors revealed that augmented angiogenic reactions of endothelial cells exposed to CM from HPMC treated with RVT analogues were related to enhanced production of VEGF and IL-8/CXCL8. Collectively, these findings indicate that RVT and its synthetic analogues divergently alter the secretion of the angiogenic factors by HPMCs, and thus modulate HPMC-dependent angiogenic responses in the opposite directions. This may have implications for the attempts of practical employment of the stilbenes for treatment of pathologies proceeding with abnormal vascularisation of the peritoneal tissue.
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Affiliation(s)
- Justyna Mikuła-Pietrasik
- Department of Pathophysiology, Poznań University of Medical Sciences, Święcickiego 6 Str., 60-781, Poznań, Poland
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Zhao Y, Cai X, Ye T, Huo J, Liu C, Zhang S, Cao P. Analgesic-antitumor peptide inhibits proliferation and migration of SHG-44 human malignant glioma cells. J Cell Biochem 2011; 112:2424-34. [DOI: 10.1002/jcb.23166] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Yang S, Guo LJ, Gao QH, Xuan M, Tan K, Zhang Q, Wen YM, Wang CM, Tang XF, Wang XY. Derived vascular endothelial cells induced by mucoepidermoid carcinoma cells: 3-dimensional collagen matrix model. J Zhejiang Univ Sci B 2011; 11:745-53. [PMID: 20872981 DOI: 10.1631/jzus.b0900404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Mucoepidermoid carcinoma undergoes uniquely vigorous angiogenic and neovascularization processes, possibly due to proliferation of vascular endothelial cells (ECs) induced by mucoepidermoid carcinoma cells (MCCs) in their three-dimensional (3D) microenvironment. To date, no studies have dealt with tumor cells and vascular ECs from the same origin of mucoepidermoid carcinoma using the in vitro 3D microenvironment model. In this context, the current research aims to observe neovascularization with mucoepidermoid carcinoma microvascular ECs (MCMECs) conditioned by the microenvironment in the 3D collagen matrix model. We observed the growth of MCMECs purified by immunomagnetic beads and induced by MCCs, and characteristics of tubule-like structures (TLSs) formed by induced MCMECs or non-induced MCMECs. The assessment parameters involved the growth curve, the length, the outer and inner diameters, and the wall thickness of the TLSs, and the cell cycle. Results showed that MCCs induced formation of the TLSs in the 3D collagen matrix model. A statistically significant difference was noted regarding the count of TLSs between the control group and the induction group on the 4th day of culture (t=5.00, P=0.001). The outer and inner diameters (t(1)=5.549, P(1)=0.000; t(2)=10.663, P(2)=0.000) and lengths (t=18.035, P=0.000) of the TLSs in the induction group were statistically significant larger than those in the control group. The TLSs were formed at the earlier time in the induction group compared with the control group. It is concluded that MCCs promote growth and migration of MCMECs, and formation of the TLSs. The 3D collagen matrix model with MCMECs induced by MCCs in the current research may be a favorable choice for research on pro-angiogenic factors in progression of mucoepidermoid carcinoma.
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Affiliation(s)
- Sen Yang
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China.
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Thuringer D, Hammann A, Benikhlef N, Fourmaux E, Bouchot A, Wettstein G, Solary E, Garrido C. Transactivation of the epidermal growth factor receptor by heat shock protein 90 via Toll-like receptor 4 contributes to the migration of glioblastoma cells. J Biol Chem 2010; 286:3418-28. [PMID: 21127066 DOI: 10.1074/jbc.m110.154823] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Extracellular heat shock protein HSP90α was reported to participate in tumor cell growth, invasion, and metastasis formation through poorly understood signaling pathways. Herein, we show that extracellular HSP90α favors cell migration of glioblastoma U87 cells. More specifically, externally applied HSP90α rapidly induced endocytosis of EGFR. This response was accompanied by a transient increase in cytosolic Ca(2+) appearing after 1-3 min of treatment. In the presence of EGF, U87 cells showed HSP90α-induced Ca(2+) oscillations, which were reduced by the ATP/ADPase, apyrase, and inhibited by the purinergic P(2) inhibitor, suramin, suggesting that ATP release is requested. Disruption of lipid rafts with methyl β-cyclodextrin impaired the Ca(2+) rise induced by extracellular HSP90α combined with EGF. Specific inhibition of TLR4 expression by blocking antibodies suppressed extracellular HSP90α-induced Ca(2+) signaling and the associated cell migration. HSPs are known to bind lipopolysaccharides (LPSs). Preincubating cells with Polymyxin B, a potent LPS inhibitor, partially abrogated the effects of HSP90α without affecting Ca(2+) oscillations observed with EGF. Extracellular HSP90α induced EGFR phosphorylation at Tyr-1068, and this event was prevented by both the protein kinase Cδ inhibitor, rottlerin, and the c-Src inhibitor, PP2. Altogether, our results suggest that extracellular HSP90α transactivates EGFR/ErbB1 through TLR4 and a PKCδ/c-Src pathway, which induces ATP release and cytosolic Ca(2+) increase and finally favors cell migration. This mechanism could account for the deleterious effects of HSPs on high grade glioma when released into the tumor cell microenvironment.
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Affiliation(s)
- Dominique Thuringer
- INSERM U866, Faculty of Medicine, 7 Boulevard Jeanne d'Arc, 21000 Dijon, France.
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21
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Takagi Y, Hashimoto N, Phan SH, Imaizumi K, Matsuo M, Nakashima H, Hashimoto I, Hayashi Y, Kawabe T, Shimokata K, Hasegawa Y. Erythromycin-induced CXCR4 expression on microvascular endothelial cells. Am J Physiol Lung Cell Mol Physiol 2009; 297:L420-31. [PMID: 19502290 DOI: 10.1152/ajplung.90477.2008] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Although stromal-derived factor-1 (SDF-1) via its cognate receptor CXCR4 is assumed to play a critical role in migration of endothelial cells during new vessel formation after tissue injury, CXCR4 expression on endothelial cells is strictly regulated. Erythromycin (EM), a 14-membered ring macrolide, has an anti-inflammatory effect that may account for its clinical benefit in the treatment of chronic inflammatory diseases. However, the effects of EM on endothelial cells and especially their expression of CXCR4 have not been fully evaluated. In this study, we demonstrated that EM markedly induced CXCR4 surface expression on microvascular endothelial cells in vitro and lung capillary endothelial cells in vivo. This ability to induce CXCR4 surface expression on endothelial cells was restricted to 14-membered ring macrolides and was not observed in other antibiotics including a 16-membered ring macrolide, josamycin. Furthermore, this EM-induced expression of CXCR4 on endothelial cells was functionally significant as demonstrated by chemotaxis assays in vitro. These findings suggest that EM-induced CXCR4 surface expression on endothelial cells may promote migration of CXCR4-expressing endothelial cells into sites of tissue injury, which may be associated with the known anti-inflammatory activity of this macrolide.
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Affiliation(s)
- Yasuyuki Takagi
- Dept. of Respiratory Medicine, Nagoya Univ. Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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22
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Inhibitory effects of clotrimazole on TNF-α-induced adhesion molecule expression and angiogenesis. Arch Pharm Res 2009; 32:593-603. [DOI: 10.1007/s12272-009-1416-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Revised: 03/09/2009] [Accepted: 03/19/2009] [Indexed: 12/15/2022]
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Chen DL, Ping YF, Yu SC, Chen JH, Yao XH, Jiang XF, Zhang HR, Wang QL, Bian XW. Downregulating FPR restrains xenograft tumors by impairing the angiogenic potential and invasive capability of malignant glioma cells. Biochem Biophys Res Commun 2009; 381:448-52. [DOI: 10.1016/j.bbrc.2009.02.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Accepted: 02/15/2009] [Indexed: 10/21/2022]
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Zhang HR, Chen FL, Xu CP, Ping YF, Wang QL, Liang ZQ, Wang JM, Bian XW. Incorporation of endothelial progenitor cells into the neovasculature of malignant glioma xenograft. J Neurooncol 2008; 93:165-74. [PMID: 19052696 DOI: 10.1007/s11060-008-9757-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2008] [Accepted: 11/17/2008] [Indexed: 01/19/2023]
Abstract
Endothelial progenitor cells (EPCs) are important initiators of vasculogenesis in the process of tumor neovascularization. However, it is unclear how circulating EPCs contribute to the formation of tumor microvessels. In this study, we isolated CD34(+)/CD133(+) cells from human umbilical cord blood (HUCB) and obtained EPCs with the capacities of forming colonies, uptaking acetylated low-density lipoprotein (ac-LDL), binding lectins and expressing vascular endothelial growth factor (VEGF) receptor 2 (VEGFR-2, KDR), CD31 and von Willebrand factor (vWF). These EPCs were actively proliferative and migratory, and could formed capillary-like tubules in response to VEGF. When injected into mice bearing subcutaneously implanted human malignant glioma, EPCs specifically accumulated at the sites of tumors and differentiated into mature endothelial cells (ECs), which accounted for 18% ECs of the tumor microvessels. The incorporation of circulating EPCs into tumor vessel walls significantly affected the morphology and structure of the vasculature. Our results suggest that circulating EPCs constitute important components of tumor microvessel network and contribute to tumor microvascular architecture phenotype heterogeneity.
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Affiliation(s)
- Hua-rong Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
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Jakab C, Halász J, Kiss A, Schaff Z, Szász A, Rusvai M, Abonyi Tóth Z, Kulka J. Evaluation of microvessel density (MVD) in canine mammary tumours by quantitative immunohistochemistry of the claudin-5 molecule. Acta Vet Hung 2008; 56:495-510. [PMID: 19149104 DOI: 10.1556/avet.56.2008.4.7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In our recent investigation, angiogenesis was evaluated and quantified by immunohistochemical evaluation of microvessel density (MVD) using claudin-5 (CLDN-5) as a marker for vascular endothelium in 67 canine mammary gland tumours. Computer image analysis was used to measure the intratumoural MVD. Higher intratumoural MVD was detected in malignant simple neoplasms compared with benign tumours. Furthermore, the results of MVD were correlated with histological grade, higher grades being accompanied by higher MVD. In simple adenomas and grade I tubular-tubulopapillary simple carcinomas the intratumoural microvessels were wide and regular in shape with evident erythrocytes in their lumen. In grade III solid carcinomas the microvessels were smaller, less regular and had irregular shape, often without a distinct lumen, and isolated endothelial cells were frequently present. In the complex carcinomas MVD was low and the intratumoural microvessels were mostly irregular in shape without a distinct lumen. The evaluation of MVD by CLDN-5 immunohistochemistry may give useful additional information on the angiogenic potential of breast cancers in dogs.
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Affiliation(s)
- Csaba Jakab
- 1 Szent István University Department of Pathology and Forensic Veterinary Medicine H-1078 Budapest István u. 2 Hungary
| | - Judit Halász
- 2 Szent István University Department of Biomathematics and Informatics, Faculty of Veterinary Science H-1078 Budapest István u. 2 Hungary
| | - András Kiss
- 2 Szent István University Department of Biomathematics and Informatics, Faculty of Veterinary Science H-1078 Budapest István u. 2 Hungary
| | - Zsuzsa Schaff
- 2 Szent István University Department of Biomathematics and Informatics, Faculty of Veterinary Science H-1078 Budapest István u. 2 Hungary
| | - Attila Szász
- 2 Szent István University Department of Biomathematics and Informatics, Faculty of Veterinary Science H-1078 Budapest István u. 2 Hungary
| | - Miklós Rusvai
- 1 Szent István University Department of Pathology and Forensic Veterinary Medicine H-1078 Budapest István u. 2 Hungary
| | - Zsolt Abonyi Tóth
- 3 Semmelweis University Second Department of Pathology Budapest Hungary
| | - Janina Kulka
- 2 Szent István University Department of Biomathematics and Informatics, Faculty of Veterinary Science H-1078 Budapest István u. 2 Hungary
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Huang J, Chen K, Gong W, Dunlop NM, Wang JM. G-protein coupled chemoattractant receptors and cancer. FRONT BIOSCI-LANDMRK 2008; 13:3352-63. [PMID: 18508437 DOI: 10.2741/2930] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chemoattractant receptors are a group of seven transmembrane, G protein coupled receptors (GPCRs). They were initially identified mainly on leukocytes to mediate cell migration in response to pathogen or host-derived chemotactic factors. During the past decade, chemoattractant GPCRs have been discovered not only to mediate leukocyte chemotaxis thus promoting innate and adaptive host immune responses, but also to play essential roles in development, homeostasis, HIV infection, angiogenesis and wound healing. A growing body of evidence further indicates that chemoattractant GPCRs contribute to tumor growth, invasion, angiogenesis/angiostasis and metastasis. The diverse properties of GPCRs in the progression of malignant tumors have attracted intense interest in their potential as novel anti-tumor pharmacological targets.
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Affiliation(s)
- Jian Huang
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, USA
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Abstract
Macrophages are cells that function as a first line of defence against invading microorganisms. One of the hallmarks of macrophages is their ability to become activated in response to exogenous 'danger signals'. Most microbes have molecular patterns (PAMPS) that are recognized by macrophages and trigger this activation response. There are many aspects of the activation response to PAMPS that are recapitulated when macrophages encounter endogenous danger signals. In response to damaged or stressed self, macrophages undergo physiological changes that include the initiation of signal transduction cascades from germline-encoded receptors, resulting in the elaboration of chemokines, cytokines and toxic mediators. This response to endogenous mediators can enhance inflammation, and thereby contribute to autoimmune pathologies. Often the overall inflammatory response is the result of cooperative activation signals from both exogenous and endogenous signals. Macrophage activation plays a critical role, not only in the initiation of the inflammatory response but also in the resolution of this response. The clearance of granulocytes and the elaboration of anti-inflammatory mediators by macrophages contribute to the dissolution of the inflammatory response. Thus, macrophages are a key player in the initiation, propagation and resolution of inflammation. This review summarizes our understanding of the role of macrophages in inflammation. We pay particular attention to the endogenous danger signals that macrophages may encounter and the responses that these signals induce. The molecular mechanisms responsible for these responses and the diseases that result from inappropriately controlled macrophage activation are also examined.
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Affiliation(s)
- X Zhang
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA
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Abstract
In recent years, the general concept has emerged that chronic low-grade inflammation can be the condition linking excessive development of adipose tissue (AT) and obesity-associated pathologies such as type II diabetes and atherosclerosis. Moreover, the evidence that the growth of the fat mass was associated with an accumulation of adipose tissue macrophages (ATM) has raised the hypothesis that the development of an inflammatory process within the growing fat mass is a primary event involved in the genesis of systemic metabolic and vascular alterations. As ATM originate from the bone marrow/blood compartment, enhanced macrophage recruitment to growing AT is suspected. However, the mechanisms responsible for attracting the blood cells and their entry into the fat mass remain to be clearly defined. The present review highlights the key role of endothelial cells in the control of the inflammatory process and describes the potential involvement of AT-endothelial cells as well as the factors involved in the regulation of their phenotype in the 'inflamed fat tissue'.
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Affiliation(s)
- C Sengenès
- Inserm, Equipe Avenir, Unité de Recherches sur les Obésités, Toulouse, France
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29
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Bian XW, Yang SX, Chen JH, Ping YF, Zhou XD, Wang QL, Jiang XF, Gong W, Xiao HL, Du LL, Chen ZQ, Zhao W, Shi JQ, Wang JM. PREFERENTIAL EXPRESSION OF CHEMOKINE RECEPTOR CXCR4 BY HIGHLY MALIGNANT HUMAN GLIOMAS AND ITS ASSOCIATION WITH POOR PATIENT SURVIVAL. Neurosurgery 2007; 61:570-8; discussion 578-9. [PMID: 17881971 DOI: 10.1227/01.neu.0000290905.53685.a2] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE CXCR4 is implicated in the growth, metastasis, and angiogenesis of malignant tumors. We investigated the potential role of CXCR4 in human gliomas. METHODS The expression of CXCR4 messenger ribonucleic acid and protein by human glioma cell lines was examined by reverse-transcriptase polymerase chain reaction and immunocytochemistry analysis. Tumor cell chemotaxis and production of vascular endothelial growth factor induced by the CXCR4 ligand SDF-1beta were measured. Xenograft models were used for evaluation of glioma cell tumorigenesis. CXCR4 expression by xenografted tumors and primary human glioma specimens were evaluated for CXCR4 protein expression. The relationship between CXCR4 expression and patient survival was analyzed. A synthetic lipoxygenase inhibitor, Nordy, was tested for its effects on glioma cell expression and function of CXCR4, as well as on glioma cell tumorigenicity. RESULTS CXCR4 expression correlated directly with the degree of malignancy of the human glioma cell lines and primary tumors. Activation of CXCR4 induced tumor cell chemotaxis and increased production of vascular endothelial growth factor. Glioma cells expressing higher levels of CXCR4 formed more rapidly growing and lethal tumors in nude mice. Primary human glioma specimens expressing CXCR4 contained high-density microvessels. Patients with CXCR4-positive gliomas had poorer prognosis after surgery. The lipoxygenase inhibitor Nordy diminished CXCR4 expression by glioma cell lines in vitro and reduced their tumorigenicity in nude mice. CONCLUSION The level of CXCR4 expression seems to correlate with the degree of malignancy of human gliomas and may contribute to their rapid growth.
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Affiliation(s)
- Xiu-wu Bian
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing, China.
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Ping YF, Yao XH, Chen JH, Liu H, Chen DL, Zhou XD, Wang JM, Bian XW. The anti-cancer compound Nordy inhibits CXCR4-mediated production of IL-8 and VEGF by malignant human glioma cells. J Neurooncol 2007; 84:21-9. [PMID: 17415525 DOI: 10.1007/s11060-007-9349-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Accepted: 01/29/2007] [Indexed: 01/08/2023]
Abstract
The chemokine receptor CXCR4 plays an important role in tumor growth, angiogenesis and metastasis. Our previous studies showed that Nordy, a synthetic chiral compound of nordihydroguaiaretic acid, inhibited the growth and angiogenesis of various malignant tumors. In this study we examined the capacity of Nordy to regulate CXCR4-mediated production of angiogenic factors by human glioblastoma cells. We found that Nordy potently inhibited CXCR4 ligand SDF-1-induced production of IL-8 and vascular endothelial cell growth factor, two important angiogenic factors implicated in the progression of malignant tumors. Further study revealed that the effect of Nordy was attributable to its down-regulation of the expression of functional CXCR4 in glioblastoma cells. These results suggest that the anti-cancer activity of Nordy is due, at least in part, to its suppression of the chemokine receptor CXCR4 thus reducing the production of angiogenic factors by tumor cells.
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Affiliation(s)
- Yi-fang Ping
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
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31
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Chen JH, Yao XH, Gong W, Hu J, Zhou XD, Chen K, Liu H, Ping YF, Wang JM, Bian XW. A novel lipoxygenase inhibitor Nordy attenuates malignant human glioma cell responses to chemotactic and growth stimulating factors. J Neurooncol 2007; 84:223-31. [PMID: 17377739 DOI: 10.1007/s11060-007-9369-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Accepted: 03/01/2007] [Indexed: 11/25/2022]
Abstract
Nordy is a chiral compound synthesized based on the structure of a natural lipoxygenase (LO) inhibitor nordihydroguaiaretic acid (NDGA) from plants. The aim of the present study is to investigate the effect of Nordy on malignant human glioma cell responses to chemoattractants and growth promoting signals. We found that Nordy, in a non-cytotoxic concentration range, potently inhibited the chemotaxis and calcium flux of a human glioblastoma cell line U87 induced by a formylpeptide receptor (FPR) agonist, formyl-methionyl-leucyl-phenylalanine (fMLF) and epidermal growth factor (EGF). U87 cells treated by Nordy also showed a significantly impaired proliferation and expression of mRNA for vascular endothelial growth factor (VEGF) induced by fMLF. The chemotactic and proliferation responses of Nordy treated U87 cells to EGF were concomitantly diminished. Further experiments revealed that Nordy did not significantly affect FPR gene expression in U87 cells, but attenuated the activation of a plethora of signaling molecules including ERK1/2, p38, JNK, and Akt when the cells were stimulated by fMLF. EGF-induced EGF receptor phosphorylation was also inhibited in Nordy-treated U87 cells. Moreover, Nordy significantly reduced the tumorigenicity of U87 cells in nude mice. Our results suggest that Nordy is capable of inhibiting glioma cell responses to signals that promote cell motility, growth and production of VEGF. Thus, Nordy may constitute a molecular basis for the development of novel anti-cancer drugs.
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Affiliation(s)
- Jian-hong Chen
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
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Danese S, Sans M, de la Motte C, Graziani C, West G, Phillips MH, Pola R, Rutella S, Willis J, Gasbarrini A, Fiocchi C. Angiogenesis as a novel component of inflammatory bowel disease pathogenesis. Gastroenterology 2006; 130:2060-73. [PMID: 16762629 DOI: 10.1053/j.gastro.2006.03.054] [Citation(s) in RCA: 318] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2005] [Accepted: 03/01/2006] [Indexed: 12/24/2022]
Abstract
BACKGROUND & AIMS Angiogenesis is a critical component of neoplastic and chronic inflammatory disorders, but whether angiogenesis also occurs in inflammatory bowel disease (IBD) has yet to be established. We assessed mucosal vascularization, expression of endothelial alphaVbeta3 integrin, angiogenic factors, and their bioactivity in Crohn's disease (CD) and ulcerative colitis (UC) mucosa. METHODS Mucosal endothelium was immunostained for CD31 and factor VIII and quantified by digital morphometry. alphaVbeta3 expression was studied in vivo by confocal microscopy and in vitro by flow cytometric analysis of human intestinal microvascular endothelial cells (HIMECs). Vascular endothelial growth factor (VEGF), interleukin (IL)-8, and bFGF levels were measured in mucosal extracts and cells and angiogenic bioactivity shown by induction of HIMEC migration and the corneal and chorioallantoic membrane angiogenesis assays. RESULTS Microvessel density was increased in IBD mucosa. Endothelial alphaVbeta3 was strongly expressed in IBD but only sporadically in normal mucosa and was up-regulated in HIMECs by VEGF, tumor necrosis factor alpha, and bFGF. IBD mucosal extracts induced a significantly higher degree of HIMEC migration than control mucosa, and this response was mostly dependent on IL-8 and less on basic fibroblast growth factor or vascular endothelial growth factor. Compared with normal mucosa, IBD mucosal extracts induced a potent angiogenic response in both the corneal and chorioallantoic membrane assays. CONCLUSIONS These results provide morphological, phenotypic and functional evidence of potent angiogenic activity in both CD and UC mucosa, indicating that the local microvasculature undergoes an intense process of inflammation-dependent angiogenesis. Thus, angiogenesis appears to be an integral component of IBD pathogenesis, providing the practical and conceptual framework for anti-angiogenic therapies in IBD.
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Affiliation(s)
- Silvio Danese
- Division of Gastroenterology, Istituto Clinico Humanitas, IRCCS in Gastroenterology, Rozzano, Milan, Italy.
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Bian XW, Wang QL, Xiao HL, Wang JM. Tumor microvascular architecture phenotype (T-MAP) as a new concept for studies of angiogenesis and oncology. J Neurooncol 2006; 80:211-3. [PMID: 16708278 DOI: 10.1007/s11060-006-9167-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2006] [Accepted: 03/29/2006] [Indexed: 10/24/2022]
Abstract
Heterogeneities exist in endothelial cells and microvascular architecture during tumor angiogenesis. We found significantly variable expression profiles of EC markers, including ephrinB2 and its receptor EphB4, and various types of the architecture. We propose a new concept of tumor microvascular architecture phenotype (T-MAP), reflecting the density, morphology, structure and the three-dimensional distribution of newly formed vessels. The pattern of T-MAP may represent the invasiveness of the tumor therefore predict the outcome of therapy. The presence of T-MAP heterogeneity (T-MAPH) may be utilized as additional diagnostic criteria and for therapeutic designs for antiangiogenesis.
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Abstract
Small interfering RNA (siRNA) has rapidly become the agent of choice for gene function analysis through loss-of-function phenotypes. Especially in complicated (patho)physiological processes such as angiogenesis, where vast numbers of proteinaceous factors are involved, the siRNA application allows relatively fast analysis of pathways and identification of new target genes. The first studies on the therapeutic effects of siRNA in angiogenesis show that this new 'drug' class holds great promise for therapeutic intervention. Two strategies emerge: the use of unmodified or the use of complexed, targeted and/or protected nucleic acids. The challenge for clinical application will be to control off-target effects and the transient character of the sequence-specific silencing effect, and to address the targeted delivery to the cell types involved in the various stages of angiogenesis. This is especially important as clinical studies indicate a profound heterogeneity of the angiogenic vasculature.
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Affiliation(s)
- Raymond M Schiffelers
- Utrecht Institute for Pharmaceutical Sciences, Room Z 735 A, Department of Pharmaceutics, Utrecht University, PO Box 80.082, 3508 TB, Utrecht, The Netherlands.
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35
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Bian XW, Jiang XF, Chen JH, Bai JS, Dai C, Wang QL, Lu JY, Zhao W, Xin R, Liu MY, Shi JQ, Wang JM. Increased angiogenic capabilities of endothelial cells from microvessels of malignant human gliomas. Int Immunopharmacol 2006; 6:90-9. [PMID: 16332517 DOI: 10.1016/j.intimp.2005.08.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2005] [Revised: 07/29/2005] [Accepted: 08/03/2005] [Indexed: 01/09/2023]
Abstract
Vascular endothelial cells (ECs) that initiate tumor angiogenesis may acquire distinct properties after conditioning in tumor microenvironment as compared to ECs in non-malignant tissues. Thus far, most in vitro studies of angiogenesis used ECs isolated from normal tissues, which may not fully represent the nature of ECs in tumor vasculature. In this study, glioma-derived microvascular ECs (GDMEC) were purified from human glioma tissues by incubating with magnetic beads coated with anti-CD105 antibody and highly pure (98%) preparations of GDMEC were obtained. These cells exhibited typical EC phenotype, and proliferated rapidly in culture. Interestingly, GDMEC expressed higher levels of VEGF receptors, flt-1 and flk-1, as compared to an established human EC cell line ECV304 and primary human umbilical vascular EC (HUVEC). Functionally, GDMEC were capable of forming intercellular junctions and tubule-like structures (TLS) of various sizes. Stimulation by VEGF further promoted TLS formation with diverse tubular walls by GDMEC. In contrast, TLS formed by ECV304 and HUVEC showed significantly different features. We further observed that Nordy, a synthetic lipoxygenase inhibitor, potently inhibited TLS formation by GDMEC. The results suggest that isolation of highly pure ECs derived from tumor tissues is more appropriate for studies of tumor angiogenesis and for test of potential anti-cancer therapeutic targets.
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Affiliation(s)
- Xiu-wu Bian
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing, China.
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Schiffelers RM, Mixson AJ, Ansari AM, Fens MHAM, Tang Q, Zhou Q, Xu J, Molema G, Lu PY, Scaria PV, Storm G, Woodle MC. Transporting silence: Design of carriers for siRNA to angiogenic endothelium. J Control Release 2005; 109:5-14. [PMID: 15979191 DOI: 10.1016/j.jconrel.2005.05.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2005] [Revised: 05/03/2005] [Accepted: 05/19/2005] [Indexed: 12/24/2022]
Abstract
The recently developed siRNA oligonucleotides are an attractive alternative to antisense as a therapeutic modality because of their robust, gene selective silencing of drug target protein expression. To achieve therapeutic success, however, several hurdles must be overcome including rapid clearance, nuclease degradation, and inefficient intracellular localization. In this presentation, we discuss design strategies for development of self-assembling nanoscale carriers for neovasculature targeted delivery of siRNA inhibiting tumor or ocular angiogenesis.
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Affiliation(s)
- Raymond M Schiffelers
- Department Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, The Netherlands.
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37
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Abstract
Adipose tissue is a highly active organ. In addition to storing calories as triglycerides, it also secretes a large variety of proteins, including cytokines, chemokines and hormone-like factors, such as leptin, adiponectin and resistin. Intriguingly, many, if not most, of these adipose-derived proteins have dual actions; cytokines have both immunomodulatory functions and act as systemic or auto-/paracrine regulators of metabolism, while proteins such as leptin and adiponectin are regulators of both metabolism and inflammation. The production of pro-atherogenic chemokines by adipose tissue is of particular interest since their local secretion, e.g. by perivascular adipose depots, may provide a novel mechanistic link between obesity and the associated vascular complications.
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Affiliation(s)
- Cristiana E Juge-Aubry
- Endocrine Unit, Department of Internal Medicine, University Hospital of Geneva, Switzerland
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38
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Yang SX, Chen JH, Jiang XF, Jiang XF, Wang QL, Chen ZQ, Zhao W, Feng YH, Xin R, Shi JQ, Bian XW. Activation of chemokine receptor CXCR4 in malignant glioma cells promotes the production of vascular endothelial growth factor. Biochem Biophys Res Commun 2005; 335:523-8. [PMID: 16084492 DOI: 10.1016/j.bbrc.2005.07.113] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2005] [Accepted: 07/20/2005] [Indexed: 11/30/2022]
Abstract
Numerous studies have showed that chemokine receptors, such as CXCR4, contribute to the growth and metastasis of a variety of malignant tumors. In this study, we investigated the role of CXCR4 in the production of angiogenic factor, vascular endothelial growth factor (VEGF), in various human glioma cells from astrocytic origin. The expression of CXCR4 mRNA and protein in three glioma cell lines, U87-MG, SHG-44, and CHG-5, was determined by RT-PCR and immunocytochemistry, respectively. The malignancies of three gliomas were evaluated by expression of glial fibrillary acidic protein and vimentin, the differentiation markers of astrocytic cells. The role of functional CXCR4 in tumor cell migration was studied with chemotaxis assay. Ca2+ mobilization and VEGF production were measured in the cells after stimulation with CXCR4 ligand, SDF1beta. The results showed that the levels of functional CXCR4 expression at both mRNA and protein levels by several human glioma cell lines were correlated with the degree of differentiation of the tumor cells. Activation of CXCR4 induced glioma cell chemotaxis and could trigger the increase of intracellular [Ca2+]i. Such an activation could result in the increased production of VEGF by the stimulated tumor cells. Our results suggest that CXCR4 may contribute to the high level of VEGF produced by malignant glioma cells and thus constitute a therapeutic target for antiangiogenesis strategy.
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Affiliation(s)
- Shi-xin Yang
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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39
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Lai WK, Adams DH. Angiogenesis and chronic inflammation; the potential for novel therapeutic approaches in chronic liver disease. J Hepatol 2005; 42:7-11. [PMID: 15629498 DOI: 10.1016/j.jhep.2004.11.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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