1
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Zhou J, Guo L, Song D, Li J, Liu Z, Sun J, Niu Y. Cytological and Biochemical Analyses of Lymphatic Fluid from Patients with Lymphatic Malformations. Lymphat Res Biol 2023; 21:339-342. [PMID: 36780016 DOI: 10.1089/lrb.2021.0068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
Background: Intracystic hemorrhage from lymphangiomas is a common phenomenon in lymphatic malformations (LMs); however, little is known about the associated compositional changes in the lymphatic fluid. Materials and Methods: We prospectively collected lymphatic fluid from children with LMs. Lymphatic fluid was divided depending on the bleeding status into the bleeding and nonbleeding groups. The fluid was subjected to cytological and biochemical analyses to determine protein and cytokine levels. The Mann-Whitney U test was used to compare the two groups. Results: There were significant differences in the levels of interleukin (IL)-6, IL-10, and glucose, and the percentage of white blood cells between the bleeding and nonbleeding groups. There was no significant difference in chlorine and protein content; white blood cell count; and IL-2, IL-4, tumor necrosis factor α, and interferon γ levels between the two groups. Conclusion: Lymphatic fluid is less stable in bleeding LMs than in non-bleeding LMs and is prone to inflammatory reactions. The inflammatory reaction in lymphatic fluid does not stimulate the cytokine storm in blood. The inflammatory reaction due to LMs does not affect the contents of protein and chlorine in lymphatic cyst fluid.
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Affiliation(s)
- Jie Zhou
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Lei Guo
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Dan Song
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Jing Li
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Zhuang Liu
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Jiali Sun
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Yanli Niu
- Department of Vascular Anomalies and Interventional Radiology, Children's Hospital Affiliated to Shandong University, Jinan, China
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2
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Nie R, Gao J, Yang W, Lu H, Ren Q. Lymphangiomatosis presented with melena and chylous ascites: A case report. Medicine (Baltimore) 2023; 102:e32581. [PMID: 36637927 PMCID: PMC9839250 DOI: 10.1097/md.0000000000032581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Lymphangioma, a rare benign tumor of the lymphatic system, is called lymphangiomatosis when it involves >1 organ, which is more rarely complicated with thoracic obstruction, the relationship between them remains unclear. With the development of enteroscopy, clinicians know more about small intestinal lymphangioma and attempt to treat it through enteroscopic injection sclerotherapy(EIS). PATIENT CONCERNS A 59-year-old male firstly manifested with gastrointestinal bleeding after a gastric perforation, who was diagnosed with lymphangiomatosis by balloon-assisted enteroscopy and abdomen CT showing >1 organ with multiple cysts besides the small intestine. The patient received an EIS, then the melena disappeared. Surprisingly he came back because of refractory ascites confirmed to be chylous by chemical tests 7 months later. DIAGNOSIS Lymphangiography could not determine the location of lymphatic leakage, Ultrasonography showed stenosis of the left cervical part of the thoracic duct. INTERVENTION On the condition that medical treatment is ineffective, thoracic duct exploration and lysis of fibrous adhesion were performed. OUTCOMES Ascites significantly reduced at last. LESSONS Lymphangiomatosis is the malformation of the lymphatic system involving multiple organs, it has a possibility to be associated with thoracic obstruction. Capsule endoscopy and enteroscopy are effective methods to diagnose small intestinal lymphangioma, and EIS is an effective therapy.
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Affiliation(s)
- Rui Nie
- The First School of Clinical Medicine, Lanzhou University, Lanzhou Gansu Province, China
- Department of Gastroenterology, the First Hospital of Lanzhou University, Lanzhou Gansu Province, China
| | - Jie Gao
- The First School of Clinical Medicine, Lanzhou University, Lanzhou Gansu Province, China
- Department of Gastroenterology, the First Hospital of Lanzhou University, Lanzhou Gansu Province, China
| | - Wei Yang
- Department of Gastroenterology, the First Hospital of Lanzhou University, Lanzhou Gansu Province, China
| | - Hong Lu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou Gansu Province, China
- Department of Gastroenterology, the First Hospital of Lanzhou University, Lanzhou Gansu Province, China
- Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou Gansu Province, China
| | - Qian Ren
- The First School of Clinical Medicine, Lanzhou University, Lanzhou Gansu Province, China
- Department of Gastroenterology, the First Hospital of Lanzhou University, Lanzhou Gansu Province, China
- Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou Gansu Province, China
- *Correspondence: Ren Qian, Associate Professor, Chief Physician,Department of Gastroenterology, Key Laboratory for Gastrointestinal Diseases of Gansu Province, The First Hospital of Lanzhou University, Lanzhou University, No. 1 Donggang West Road, Lanzhou, Gansu Province 730000, China(e-mail: )
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3
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Abstract
Lymphangioma is a common type of congenital vascular disease in children with a broad spectrum of clinical manifestations. The current classification of lymphangioma by International Society for the Study of Vascular Anomalies is largely based on the clinical manifestations and complications and is not sufficient for selection of therapeutic strategies and prognosis prediction. The clinical management and outcome of lymphangioma largely depend on the clinical classification and the location of the disease, ranging from spontaneous regression with no treatment to severe sequelae even with comprehensive treatment. Recently, rapid progression has been made toward elucidating the molecular pathology of lymphangioma and the development of treatments. Several signaling pathways have been revealed to be involved in the progression and development of lymphangioma, and specific inhibitors targeting these pathways have been investigated for clinical applications and clinical trials. Some drugs already currently in clinical use for other diseases were found to be effective for lymphangioma, although the mechanisms underlying the anti-tumor effects remain unclear. Molecular classification based on molecular pathology and investigation of the molecular mechanisms of current clinical drugs is the next step toward developing more effective individualized treatment of children with lymphangioma with reduced side effects.
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Affiliation(s)
- Xiaowei Liu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China
| | - Cheng Cheng
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China
| | - Kai Chen
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China
| | - Yeming Wu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China.,Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, China
| | - Zhixiang Wu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Division of Pediatric Oncology, Shanghai Institute of Pediatric Research, Shanghai, China.,Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, China
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4
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Usui H, Tsurusaki Y, Shimbo H, Saitsu H, Harada N, Kitagawa N, Mochizuki K, Masuda M, Kurosawa K, Shinkai M. A novel method for isolating lymphatic endothelial cells from lymphatic malformations and detecting PIK3CA somatic mutation in these isolated cells. Surg Today 2020; 51:439-446. [PMID: 32876734 DOI: 10.1007/s00595-020-02122-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/17/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE Tissue disaggregation and the cell sorting technique by surface markers has played an important role in isolating lymphatic endothelial cells (LECs) from lymphatic malformation (LM). However, this technique may have the drawback of impurities or result in isolation failure because it is dependent on surface marker expressions, the heterogeneity of which has been found in the lymphatic system. We developed a novel method for isolating LM-LECs without using whole tissue disaggregation. METHODS Seven LM surgical specimens were collected from seven patients with LMs. LM-LECs were detached from the LM cyst wall by "lumen digestion" and irrigating the cystic cavity with trypsin, and maintained in culture. RESULTS The cells formed a monolayer with a cobblestone-like appearance. Immunohistochemistry and quantitative RT-PCR of these cells revealed high expression of lymphatic-specific genes, confirming their identity as LM-LECs. The whole-exome sequencing and PIK3CA sequencing of these cells revealed somatic mutations in PIK3CA in all cases. CONCLUSIONS We established a novel technique for isolating LM-LECs from LM tissue by "lumen digestion" without whole-tissue disaggregation. The limited incorporation of non-LM LECs in the isolate in our method could make it an important tool for investigating the heterogeneity of gene expression as well as mutations in LM-LECs.
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Affiliation(s)
- Hidehito Usui
- Department of Surgery, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan.
| | - Yoshinori Tsurusaki
- Clinical Research Institute, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
| | - Hiroko Shimbo
- Clinical Research Institute, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
| | - Hirotomo Saitsu
- Department of Biochemistry, Hamamatsu University School of Medicine, 1-20-1, Hanndayama, Higashi-ku, Hamamatsu, Japan
| | - Noriaki Harada
- Department of Clinical Laboratory, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
| | - Norihiko Kitagawa
- Department of Surgery, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
| | - Kyoko Mochizuki
- Department of Surgery, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
| | - Munetaka Masuda
- Department of Surgery, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama, Japan
| | - Kenji Kurosawa
- Department of Medical Genetics, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
| | - Masato Shinkai
- Department of Surgery, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa, Minami-ku, Yokohama, Japan
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Sharma M, Mallya V, Khurana N, Kumar P, Duggal R. Lymphovascular Malformation - A Report of Two Cases. J Clin Diagn Res 2017; 11:ED03-ED04. [PMID: 28658775 DOI: 10.7860/jcdr/2017/25326.9767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 01/05/2017] [Indexed: 11/24/2022]
Abstract
Congenital Vascular Malformations (CVM) represents a group of vascular anomalies that are the result of defective development of the vascular system. Lymphatic malformation consists of dilated lymphatic vessels caused by occlusion of the lymphatic drainage system due to congenital malformations or acquired causes such as the effects of trauma, infection, or surgery. Lymphaticovenous Malformation (LVM) is composed of lymphatic and venous channels. The most common sites are the neck and axilla. We report two cases of a four and a half-year-old and a seven-year-old child who presented with complaints of swelling in arm and groin respectively. A provisional diagnosis was made on radiological investigations. Excision was done and the diagnosis was confirmed on histopathology and immunohistochemistry. The cases which were presented as LVMs are rare congenital tumours and require a high index of suspicion on part of pathologist and surgeon to reach a definitive diagnosis.
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Affiliation(s)
- Mitakshara Sharma
- Senior Resident, Department of Pathology, Maulana Azad Medical College, New Delhi, India
| | - Varuna Mallya
- Assistant Professor, Department of Pathology, Maulana Azad Medical College, New Delhi, India
| | - Nita Khurana
- Director Professor, Department of Pathology, Maulana Azad Medical College, New Delhi, India
| | - Praveen Kumar
- Senior Resident, Department of Paediatric Surgery, Maulana Azad Medical College, New Delhi, India
| | - Rajan Duggal
- Additional Director, Department of Pathology, Fortis Escorts, Okhla, Delhi, India
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6
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Ren JG, Xia HF, Yang JG, Zhu JY, Zhang W, Chen G, Zhao JH, Sun YF, Zhao YF. Down-regulation of polycystin in lymphatic malformations: possible role in the proliferation of lymphatic endothelial cells. Hum Pathol 2017; 65:231-238. [DOI: 10.1016/j.humpath.2017.05.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 04/27/2017] [Accepted: 05/10/2017] [Indexed: 02/04/2023]
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Abstract
The paratesticular scrotal contents consist of the spermatic cord, epididymis, and fascia, which originate from the embryologic descent of the testis through the abdominal wall. Historically, the primary diagnostic modality has been high-resolution ultrasound. Magnetic resonance imaging (MRI) is an alternative imaging option. Both contrast MRI and diffusion weighted imaging can assist in differentiating between benign and malignant lesions. Unlike the testis which most disease processes are malignant, a wide spectrum of benign disease processes affects the paratesticular region either in isolation or as part of a contiguous disease process from adjacent organs. The familiarity with the epidemiology, pathogenesis, and imaging features can aid the radiologic diagnoses and guide appropriate clinical management. In this article, we review the ultrasound and MR characteristics of various paratesticular pathologies.
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8
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Siciliano C, Bordin A, Ibrahim M, Chimenti I, Cassiano F, Gatto I, Mangino G, Coccia A, Miglietta S, Bastianelli D, Petrozza V, Calogero A, Frati G, De Falco E. The adipose tissue of origin influences the biological potential of human adipose stromal cells isolated from mediastinal and subcutaneous fat depots. Stem Cell Res 2016; 17:342-351. [PMID: 27614132 DOI: 10.1016/j.scr.2016.07.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/25/2016] [Accepted: 07/29/2016] [Indexed: 02/09/2023] Open
Abstract
Indirect evidence suggests that adipose tissue-derived stromal cells (ASCs) possess different physiological and biological variations related to the anatomical localization of the adipose depots. Accordingly, to investigate the influence of the tissue origin on the intrinsic properties of ASCs and to assess their response to specific stimuli, we compared the biological, functional and ultrastructural properties of two ASC pools derived from mediastinal and subcutaneous depots (thoracic compartment) by means of supplements such as platelet lysate (PL) and FBS. Subcutaneous ASCs exhibited higher proliferative and clonogenic abilities than mediastinal counterpart, as well as increased secreted levels of IL-6 combined with lower amount of VEGF-C. In contrast, mediastinal ASCs displayed enhanced pro-angiogenic and adipogenic differentiation properties, increased cell diameter and early autophagic processes, highlighted by electron microscopy. Our results further support the hypothesis that the origin of adipose tissue significantly defines the biological properties of ASCs, and that a homogeneric function for all ASCs cannot be assumed.
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Affiliation(s)
- Camilla Siciliano
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Antonella Bordin
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Mohsen Ibrahim
- Division of Thoracic Surgery, Department of Medical-Surgical Science and Translational Medicine, Sapienza University of Rome, S. Andrea Hospital, via di Grottarossa 1035, 00189 Rome, Italy.
| | - Isotta Chimenti
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Francesco Cassiano
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Section of Anatomy, Electron Microscopy Unit, Laboratory "Pietro M. Motta", Sapienza University of Rome, Rome, Italy.
| | - Ilenia Gatto
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Giorgio Mangino
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Andrea Coccia
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Selenia Miglietta
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Section of Anatomy, Electron Microscopy Unit, Laboratory "Pietro M. Motta", Sapienza University of Rome, Rome, Italy.
| | - Daniela Bastianelli
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Vincenzo Petrozza
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Antonella Calogero
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
| | - Giacomo Frati
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy; Department of AngioCardioNeurology, IRCCS NeuroMed, 86077 Pozzilli, IS, Italy.
| | - Elena De Falco
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, C.so della Repubblica 79, 04100 Latina, Italy.
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9
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Abstract
Lymphatic malformations are congenital malformations of the lymphatic system. They are mainly located in the head and neck area, and grow proportional to the patients' body growth. Depending on the morphology, it can be distinguished between macrocystic, microcystic and mixed lymphatic malformations. Due to their infiltrative growth, microcystic lymphatic malformations are particularly difficult to treat. Therapeutic approaches include conventional surgical resection, laser therapy, sclerotherapy and systemic drug therapies.
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10
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Kanagalingam S, Wyse E, Merbs SL, Pearl MS. Fluctuating nature of an orbital venous-lymphatic anomaly in association with intracranial vascular malformations: a classical presentation. BMJ Case Rep 2015; 2015:bcr-2015-211573. [PMID: 26438679 DOI: 10.1136/bcr-2015-211573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Venous-lymphatic anomalies (VLA) are rare and benign congenital lesions of the lymphatic system, composed of endothelial-lined lymphatic cysts. They are most frequently located in the region of the head and neck, and represent 4% of all orbital masses. In those patients with extensive orbital VLAs, a strong association with intracranial vascular anomalies has been reported. Factors known to suddenly increase the size of these lesions include upper respiratory tract infections or intralesional haemorrhage; however, complete spontaneous regression is rare. We report on the classic presentation of a patient with a fluctuating right orbital VLA in association with an intracranial cavernous malformation and intracranial developmental venous anomaly.
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Affiliation(s)
- Sivashakthi Kanagalingam
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Emily Wyse
- Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Shannath L Merbs
- Department of Ophthalmology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Monica Smith Pearl
- Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland, USA Department of Radiology, Children's National Medical Center, Washington DC, USA
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11
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Parker RA, Menias CO, Quazi R, Hara AK, Verma S, Shaaban A, Siegel CL, Radmanesh A, Sandrasegaran K. MR Imaging of the Penis and Scrotum. Radiographics 2015; 35:1033-50. [PMID: 26090569 DOI: 10.1148/rg.2015140161] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Traditionally, due to its low cost, ready availability, and proved diagnostic accuracy, ultrasonography (US) has been the primary imaging modality for the evaluation of scrotal and, to a lesser extent, penile disease. However, US is limited by its relatively small useful field of view, operator dependence, and inability to provide much information on tissue characterization. Magnetic resonance (MR) imaging, with its excellent soft-tissue contrast and good spatial resolution, is increasingly being used as both a problem-solving tool in patients who have already undergone US and as a primary modality for the evaluation of suspected disease. Specifically, MR imaging can aid in differentiating between benign and malignant lesions seen at US, help define the extent of inflammatory processes or traumatic injuries, and play a vital role in locoregional staging of tumors. Consequently, it is becoming more important for radiologists to be familiar with the wide range of penile and scrotal disease entities and their MR imaging appearances. The authors review the basic anatomy of the penis and scrotum as seen at MR imaging and provide a basic protocol for penile and scrotal imaging, with emphasis on the advantages of MR imaging. Pathologic processes are organized into traumatic (including penile fracture and contusion), infectious or inflammatory (including Fournier gangrene and scrotal abscess), and neoplastic (including both benign and malignant scrotal and penile tumors) processes.
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Affiliation(s)
- Rex A Parker
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Christine O Menias
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Robin Quazi
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Amy K Hara
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Sadhna Verma
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Akram Shaaban
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Cary L Siegel
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Alireza Radmanesh
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
| | - Kumar Sandrasegaran
- From the Department of Radiology, Kaiser Los Angeles Medical Center, 1526 N Edgemont St, 5th Floor, Los Angeles, CA 90027 (R.A.P.); Department of Radiology, Mayo Clinic Arizona, Scottsdale, Ariz (C.O.M., A.K.H.); Department of Radiology, University of California-Los Angeles, Los Angeles, Calif (R.Q.); Department of Radiology, University of Cincinnati, Cincinnati, Ohio (S.V.); Department of Radiology, University of Utah, Salt Lake City, Utah (A.S.); Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (C.L.S., A.R.); and Department of Radiology, Indiana University Medical Center, Indianapolis, Ind (K.S.)
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Boscolo E, Coma S, Luks VL, Greene AK, Klagsbrun M, Warman ML, Bischoff J. AKT hyper-phosphorylation associated with PI3K mutations in lymphatic endothelial cells from a patient with lymphatic malformation. Angiogenesis 2014; 18:151-62. [PMID: 25424831 DOI: 10.1007/s10456-014-9453-2] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 11/19/2014] [Indexed: 02/06/2023]
Abstract
Lymphatic malformations (LM) are characterized by abnormal formation of lymphatic vessels and tissue overgrowth. The lymphatic vessels present in LM lesions may become blocked and enlarged as lymphatic fluid collects, forming a mass or cyst. Lesions are typically diagnosed during childhood and are often disfiguring and life threatening. Available treatments consist of sclerotherapy, surgical removal and therapies to diminish complications. We isolated lymphatic endothelial cells (LM-LEC) from a surgically removed microcystic LM lesion. LM-LEC and normal human dermal-LEC (HD-LEC) expressed endothelial (CD31, VE-Cadherin) as well as lymphatic endothelial (Podoplanin, PROX1, LYVE1)-specific markers. Targeted gene sequencing analysis in patient-derived LM-LEC revealed the presence of two mutations in class I phosphoinositide 3-kinases (PI3K) genes. One is an inherited, premature stop codon in the PI3K regulatory subunit PIK3R3. The second is a somatic missense mutation in the PI3K catalytic subunit PIK3CA; this mutation has been found in association with overgrowth syndromes and cancer growth. LM-LEC exhibited angiogenic properties: both cellular proliferation and sprouting in collagen were significantly increased compared with HD-LEC. AKT-Thr308 was constitutively hyper-phosphorylated in LM-LEC. Treatment of LM-LEC with PI3-Kinase inhibitors Wortmannin and LY294 decreased cellular proliferation and prevented the phosphorylation of AKT-Thr308 in both HD-LEC and LM-LEC. Treatment with the mTOR inhibitor rapamycin also diminished cellular proliferation, sprouting and AKT phosphorylation, but only in LM-LEC. Our results implicate disrupted PI3K-AKT signaling in LEC isolated from a human lymphatic malformation lesion.
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Affiliation(s)
- Elisa Boscolo
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
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MacIntosh PW, Yoon MK, Fay A. Complications of Intralesional Bleomycin in the Treatment of Orbital Lymphatic Malformations. Semin Ophthalmol 2014; 29:450-5. [DOI: 10.3109/08820538.2014.959617] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Signaling pathways in the development of infantile hemangioma. J Hematol Oncol 2014; 7:13. [PMID: 24479731 PMCID: PMC3913963 DOI: 10.1186/1756-8722-7-13] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 01/28/2014] [Indexed: 02/05/2023] Open
Abstract
Infantile hemangioma (IH), which is the most common tumor in infants, is a benign vascular neoplasm resulting from the abnormal proliferation of endothelial cells and pericytes. For nearly a century, researchers have noted that IH exhibits diverse and often dramatic clinical behaviors. On the one hand, most lesions pose no threat or potential for complication and resolve spontaneously without concern in most children with IH. On the other hand, approximately 10% of IHs are destructive, disfiguring and even vision- or life-threatening. Recent studies have provided some insight into the pathogenesis of these vascular tumors, leading to a better understanding of the biological features of IH and, in particular, indicating that during hemangioma neovascularization, two main pathogenic mechanisms prevail, angiogenesis and vasculogenesis. Both mechanisms have been linked to alterations in several important cellular signaling pathways. These pathways are of interest from a therapeutic perspective because targeting them may help to reverse, delay or prevent hemangioma neovascularization. In this review, we explore some of the major pathways implicated in IH, including the VEGF/VEGFR, Notch, β-adrenergic, Tie2/angiopoietins, PI3K/AKT/mTOR, HIF-α-mediated and PDGF/PDGF-R-β pathways. We focus on the role of these pathways in the pathogenesis of IH, how they are altered and the consequences of these abnormalities. In addition, we review the latest preclinical and clinical data on the rationally designed targeted agents that are now being directed against some of these pathways.
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Lokmic Z, Mitchell GM, Koh Wee Chong N, Bastiaanse J, Gerrand YW, Zeng Y, Williams ED, Penington AJ. Isolation of human lymphatic malformation endothelial cells, their in vitro characterization and in vivo survival in a mouse xenograft model. Angiogenesis 2013; 17:1-15. [PMID: 23884796 DOI: 10.1007/s10456-013-9371-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 07/15/2013] [Indexed: 10/26/2022]
Abstract
Human lymphatic vascular malformations (LMs), also known as cystic hygromas or lymphangioma, consist of multiple lymphatic endothelial cell-lined lymph-containing cysts. No animal model of this disease exists. To develop a mouse xenograft model of human LM, CD34(Neg)CD31(Pos) LM lymphatic endothelial cells (LM-LEC) were isolated from surgical specimens and compared to foreskin CD34(Neg)CD31(Pos) lymphatic endothelial cells (LECs). Cells were implanted into a mouse tissue engineering model for 1, 2 and 4 weeks. In vitro LM-LECs showed increased proliferation and survival under starvation conditions (P < 0.0005 at 48 h, two-way ANOVA), increased migration (P < 0.001, two-way ANOVA) and formed fewer (P = 0.029, independent samples t test), shorter tubes (P = 0.029, independent samples t test) than foreskin LECs. In vivo LM-LECs implanted into a Matrigel™-containing mouse chamber model assembled to develop vessels with dilated cystic lumens lined with flat endothelium, morphology similar to that of clinical LMs. Human foreskin LECs failed to survive implantation. In LM-LEC implanted chambers the percent volume of podoplanin(Pos) vessels was 1.18 ± 2.24 % at 1 week, 6.34 ± 2.68 % at 2 weeks and increasing to 7.67 ± 3.60 % at 4 weeks. In conclusion, the significantly increased proliferation, migration, resistance to apoptosis and decreased tubulogenesis of LM-LECs observed in vitro is likely to account for their survival and assembly into stable LM-like structures when implanted into a mouse vascularised chamber model. This in vivo xenograft model will provide the basis of future studies of LM biology and testing of potential pharmacological interventions for patients with lymphatic malformations.
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Affiliation(s)
- Zerina Lokmic
- O'Brien Institute, 42 Fitzroy Street, Fitzroy, VIC, 3065, Australia,
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Ichise T, Yoshida N, Ichise H. Ras/MAPK signaling modulates VEGFR-3 expression through Ets-mediated p300 recruitment and histone acetylation on the Vegfr3 gene in lymphatic endothelial cells. PLoS One 2012; 7:e51639. [PMID: 23284731 PMCID: PMC3524184 DOI: 10.1371/journal.pone.0051639] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 11/02/2012] [Indexed: 12/16/2022] Open
Abstract
Modulation of VEGFR-3 expression is important for altering lymphatic endothelial cell (LEC) characteristics during the lymphangiogenic processes that occur under developmental, physiological, and pathological conditions. However, the mechanisms underlying the modulation of Vegfr3 gene expression remain largely unknown. Using genetically engineered mice and LECs, we demonstrated previously that Ras signaling is involved not only in VEGFR-3-induced signal transduction but also in Vegfr3 gene expression. Here, we investigated the roles of the transcription factor Ets and the histone acetyltransferase p300 in LECs in Ras-mediated transcriptional regulation of Vegfr3. Ras activates Ets proteins via MAPK-induced phosphorylation. Ets knockdown, similar to Ras knockdown, resulted in a decrease in both Vegfr3 transcript levels and acetylated histone H3 on the Vegfr3 gene. Vegfr3 knockdown results in altered LEC phenotypes, such as aberrant cell proliferation and network formation, and Ets knockdown led to milder but similar phenotypic changes. We identified evolutionarily conserved, non-coding regulatory elements within the Vegfr3 gene that harbor Ets-binding motifs and have enhancer activities in LECs. Chromatin immunoprecipitation (ChIP) assays revealed that acetylated histone H3 on the regulatory elements of the Vegfr3 gene was decreased following Ras and Ets knockdown, and that activated Ets proteins, together with p300, were associated with these regulatory elements, consistent with a reduction in Vegfr3 gene expression in p300-knockdown LECs. Our findings demonstrate a link between Ras signaling and Ets- and p300-mediated transcriptional regulation of Vegfr3, and provide a potential mechanism by which VEGFR-3 expression levels may be modulated during lymphangiogenesis.
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Affiliation(s)
- Taeko Ichise
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Nobuaki Yoshida
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Hirotake Ichise
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
- * E-mail:
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Del Pozo J, Gómez-Tellado M, López-Gutiérrez J. Malformaciones vasculares en la infancia. ACTAS DERMO-SIFILIOGRAFICAS 2012; 103:661-78. [DOI: 10.1016/j.ad.2011.12.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 12/18/2011] [Accepted: 12/25/2011] [Indexed: 12/20/2022] Open
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Vascular Malformations in Childhood. ACTAS DERMO-SIFILIOGRAFICAS 2012. [DOI: 10.1016/j.adengl.2012.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Akaike G, Nozaki T, Makidono A, Saida Y, Hirabayashi T, Suzuki K. A case of lymphatic malformation/lymphangioma of the scrotum. Acta Radiol Short Rep 2012; 1:10.1258_arsr.2012.120021. [PMID: 23986836 PMCID: PMC3738345 DOI: 10.1258/arsr.2012.120021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 03/27/2012] [Indexed: 11/18/2022] Open
Abstract
Lymphatic malformation/lymphangioma of the scrotum is rare. It is caused by lymphatic abnormalities and the most common sites are the neck and axilla. The scrotum is one of the most uncommon sites. We report the case of a 12-year-old boy with pathologically confirmed cystic lymphangioma/lymphatic malformation in the scrotum. The diagnosis was suspected from ultrasonography and magnetic resonance imaging. The most common cause of a cystic mass in the scrotum is scrotal hydrocele, but cystic lymphangioma/lymphatic malformation should be considered as a differential diagnosis for multicystic scrotal mass.
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Shetty DC, Urs AB, Rai HC, Ahuja N, Manchanda A. Case series on vascular malformation and their review with regard to terminology and categorization. Contemp Clin Dent 2011; 1:259-62. [PMID: 22114434 PMCID: PMC3220150 DOI: 10.4103/0976-237x.76397] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Malformations of vascular nature originate as anomalies caused due to errors in vasculogenesis. These tumors are generally broadly classified into vascular tumors (hemangiomas) and vascular malformations (venous malformations, arteriovenous malformations, lymphatic malformations). These descriptive tumors and malformations have been categorized based on the architectural assembly of vessels. Lymphangiomas are further subclassified microscopically into capillary, cavernous, cystic and lymphangioendothelioma, depending upon their histopathological features. Lymphatic malformations or lymphangiomas are uncommon congenital malformations of the lymphatic system, usually occurring in the head and neck region, characterized by collections of ectatic lymph vessels that form endothelial lined cystic spaces. Advancements in the knowledge of pathogenesis of such vascular malformations are continuously changing their treatment protocols. Early recognition is of utmost importance for initiation of proper treatment and avoiding serious complications. Hemangiolymphangioma is a variant of lymphangioma showing vascular component. Herewith, we present a case of vascular malformation diagnosed as hemangiolymphangioma histopathologically in a 9-year-old girl, along with a review of literature regarding its categorization.
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Affiliation(s)
- Devi Charan Shetty
- Department of Oral and Maxillofacial Pathology and Microbiology, I.T.S. Center for Dental Studies and Research, Muradnagar, Ghaziabad, Uttar Pradesh, India.
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Coso S, Zeng Y, Sooraj D, Williams ED. Conserved signaling through vascular endothelial growth (VEGF) receptor family members in murine lymphatic endothelial cells. Exp Cell Res 2011; 317:2397-407. [PMID: 21839079 DOI: 10.1016/j.yexcr.2011.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 07/17/2011] [Accepted: 07/23/2011] [Indexed: 10/17/2022]
Abstract
Lymphatic vessels guide interstitial fluid, modulate immune responses by regulating leukocyte and antigen trafficking to lymph nodes, and in a cancer setting enable tumor cells to track to regional lymph nodes. The aim of the study was to determine whether primary murine lymphatic endothelial cells (mLECs) show conserved vascular endothelial growth factor (VEGF) signaling pathways with human LECs (hLECs). LECs were successfully isolated from murine dermis and prostate. Similar to hLECs, vascular endothelial growth factor (VEGF) family ligands activated MAPK and pAkt intracellular signaling pathways in mLECs. We describe a robust protocol for isolation of mLECs which, by harnessing the power of transgenic and knockout mouse models, will be a useful tool to study how LEC phenotype contributes to alterations in lymphatic vessel formation and function.
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Affiliation(s)
- Sanja Coso
- Centre for Cancer Research, Monash Institute of Medical Research, Monash University, Clayton, Victoria, Australia
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22
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Hemangiomas and Vascular Malformations of the Head and Neck: A Simplified Approach. Neuroimaging Clin N Am 2011; 21:641-58, viii. [DOI: 10.1016/j.nic.2011.05.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Huang KJ, Sui LH. The relevance and role of vascular endothelial growth factor C, matrix metalloproteinase-2 and E-cadherin in epithelial ovarian cancer. Med Oncol 2011; 29:318-23. [PMID: 21264536 DOI: 10.1007/s12032-010-9817-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Accepted: 12/31/2010] [Indexed: 11/27/2022]
Abstract
We investigated the correlation of vascular endothelial growth factor C, matrix metalloproteinase-2, E-cadherin to explore mechanisms of vascular endothelial growth factor C in the metastasis of ovarian cancer and the relationship of prognosis. We applied immunohistochemistry to investigate the expression of vascular endothelial growth factor C, matrix metalloproteinase-2 and E-cadherin in ovarian tissues of 227 patients. We adopted Pearson chi-square test, Spearman correlation coefficient, univariate analysis, multivariate analysis, and Kaplan-Meier method. The positive rate of vascular endothelial growth factor C, matrix metalloproteinase-2 and E-cadherin in ovarian cancer was higher than that in borderline and benign tumor (P < 0.01). Vascular endothelial growth factor C was positively correlated with matrix metalloproteinase-2 (r = 0.665, P < 0.01) while negatively with E-cadherin(r = -0.185, P < 0.05). Univariate analysis showed clinical stage, pathologic grade, lymphatic metastasis, residual disease, chemotherapy, ascites, vascular endothelial growth factor C, and matrix metalloproteinase-2-influenced survival time (P < 0.05). In Cox multivariate analysis, all the aforementioned factors were found to be independent prognostic factors except pathologic grade. Vascular endothelial growth factor C was a new target to assess the prognosis of ovarian cancer. The expression of vascular endothelial growth factor C in ovarian cancer was related to matrix metalloproteinase-2 and E-cadherin.
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Affiliation(s)
- Ke-Jin Huang
- Department of Gynecology, The Third Affiliated Hospital of Harbin Medical University, 150040 Harbin, China
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Khatib AM, Lahlil R, Scamuffa N, Akimenko MA, Ernest S, Lomri A, Lalou C, Seidah NG, Villoutreix BO, Calvo F, Siegfried G. Zebrafish ProVEGF-C expression, proteolytic processing and inhibitory effect of unprocessed ProVEGF-C during fin regeneration. PLoS One 2010; 5:e11438. [PMID: 20625388 PMCID: PMC2896389 DOI: 10.1371/journal.pone.0011438] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Accepted: 06/06/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND In zebrafish, vascular endothelial growth factor-C precursor (proVEGF-C) processing occurs within the dibasic motif HSIIRR(214) suggesting the involvement of one or more basic amino acid-specific proprotein convertases (PCs) in this process. In the present study, we examined zebrafish proVEGF-C expression and processing and the effect of unprocessed proVEGF-C on caudal fin regeneration. METHODOLOGY/PRINCIPAL FINDINGS Cell transfection assays revealed that the cleavage of proVEGF-C, mainly mediated by the proprotein convertases Furin and PC5 and to a less degree by PACE4 and PC7, is abolished by PCs inhibitors or by mutation of its cleavage site (HSIIRR(214) into HSIISS(214)). In vitro, unprocessed proVEGF-C failed to activate its signaling proteins Akt and ERK and to induce cell proliferation. In vivo, following caudal fin amputation, the induction of VEGF-C, Furin and PC5 expression occurs as early as 2 days post-amputation (dpa) with a maximum levels at 4-7 dpa. Using immunofluorescence staining we localized high expression of VEGF-C and the convertases Furin and PC5 surrounding the apical growth zone of the regenerating fin. While expression of wild-type proVEGF-C in this area had no effect, unprocessed proVEGF-C inhibited fin regeneration. CONCLUSIONS/SIGNIFICANCES Taken together, these data indicate that zebrafish fin regeneration is associated with up-regulation of VEGF-C and the convertases Furin and PC5 and highlight the inhibitory effect of unprocessed proVEGF-C on fin regeneration.
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Affiliation(s)
- Abdel-Majid Khatib
- INSERM, UMRS940, Equipe Avenir. Institut de Génétique Moléculaire, Hôpital St-Louis, Université Paris 7, Paris, France
| | - Rachid Lahlil
- INSERM, UMRS940, Equipe Avenir. Institut de Génétique Moléculaire, Hôpital St-Louis, Université Paris 7, Paris, France
- INSERM U 770, Kremlin-Bicetre, France
| | - Nathalie Scamuffa
- INSERM, UMRS940, Equipe Avenir. Institut de Génétique Moléculaire, Hôpital St-Louis, Université Paris 7, Paris, France
| | | | | | - Abdderahim Lomri
- INSERM U 606, Université Paris 7, Lariboisière Hospital, Paris, France
| | - Claude Lalou
- INSERM, UMRS940, Equipe Avenir. Institut de Génétique Moléculaire, Hôpital St-Louis, Université Paris 7, Paris, France
| | - Nabil G. Seidah
- Clinical Research Institute of Montreal, IRCM, Montreal, Quebec, Canada
| | | | - Fabien Calvo
- INSERM, UMRS940, Equipe Avenir. Institut de Génétique Moléculaire, Hôpital St-Louis, Université Paris 7, Paris, France
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Perkins JA, Manning SC, Tempero RM, Cunningham MJ, Edmonds JL, Hoffer FA, Egbert MA. Lymphatic malformations: Current cellular and clinical investigations. Otolaryngol Head Neck Surg 2010; 142:789-94. [DOI: 10.1016/j.otohns.2010.02.025] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2009] [Revised: 02/18/2010] [Accepted: 02/18/2010] [Indexed: 10/19/2022]
Abstract
Objective: Summarize current knowledge of lymphatic malformation development, biology, and clinical outcome measures. Methods: Panel presentation of lymphatic malformation biology and measurement of head and neck malformation treatment outcomes. Results: Characterization of lymphatic malformation endothelial and stromal cells may lead to biologically based treatment. Traditionally, lymphatic malformation treatment outcomes have been measured according to reduction of malformation size. Currently, methods to measure functional outcomes following lymphatic malformation treatment are lacking. This is particularly apparent when the malformation directly involves the upper aerodigestive tract. Conclusions: The etiology and pathogenesis of head and neck lymphatic malformations are poorly understood, but understanding is improving through ongoing investigation. Reduction of lymphatic malformation size is generally possible, but further work is necessary to optimize methods for measuring therapeutic outcomes in problematic areas.
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Affiliation(s)
- Jonathan A. Perkins
- Division of Pediatric Otolaryngology–Head and Neck Surgery, Seattle Children's Hospital, Seattle, WA
- Department of Otolaryngology–Head and Neck Surgery, University of Washington, Seattle, WA
| | - Scott C. Manning
- Division of Pediatric Otolaryngology–Head and Neck Surgery, Seattle Children's Hospital, Seattle, WA
- Department of Otolaryngology–Head and Neck Surgery, University of Washington, Seattle, WA
| | | | - Michael J. Cunningham
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, and Department of Otology and Laryngology, Harvard Medical School, Boston, MA
| | - Joseph L. Edmonds
- Children's ENT of Houston, Houston, TX
- Department of Otolaryngology and Division of Plastic Surgery, Baylor College of Medicine, Houston, TX
- Department of Otolaryngology, Weill Cornell College of Medicine, New York, NY
- Department of Otolaryngology, University of Texas School of Medicine, Houston, TX
| | - Fredric A. Hoffer
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle WA
| | - Mark A. Egbert
- Department of Oral and Maxillofacial Surgery, Dental Medicine, Seattle Children's Hospital, University of Washington, Seattle WA
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Ji RC, Eshita Y, Xing L, Miura M. Multiple expressions of lymphatic markers and morphological evolution of newly formed lymphatics in lymphangioma and lymph node lymphangiogenesis. Microvasc Res 2010; 80:195-201. [PMID: 20382171 DOI: 10.1016/j.mvr.2010.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Accepted: 04/01/2010] [Indexed: 10/19/2022]
Abstract
The rapid evolution of reliable technology combined with increasing number of specific markers for lymphatic endothelial cells (LECs) facilitates the investigation of lymphangiogenesis in developing and diseased tissues. Here, we injected incomplete Freund's adjuvant (IFA) peritoneally into BALB/c and nonobese diabetic (NOD) mice to induce lymphangioma and found atypical lymphatic accumulations with intervening fibrous tissue and lymphoid aggregates. Lymphatic markers, LYVE-1 and podoplanin, were used to specifically define the morphological features of the neoplastic lymphatics. The NOD mice (affected by an autoimmune disorder) had fewer and smaller lymphangiomas than the BALB/c mice. Injection of IFA in the footpad skin of the mice also disturbed draining regional lymph node lymphangiogenesis and caused enlargement of popliteal lymph nodes. Molecular analyses of the LECs indicated potential interventions for lymphangioma through vascular endothelial growth factor (VEGF)-A/-C/-D and their receptors, VEGF receptors-2/-3, and Prox-1 signaling pathways. These findings represent an important link between multiple factors and lymphatic disorders.
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Affiliation(s)
- Rui-Cheng Ji
- Department of Human Anatomy, Oita University Faculty of Medicine, Oita, Japan.
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Albuquerque RJC, Hayashi T, Cho WG, Kleinman ME, Dridi S, Takeda A, Baffi JZ, Yamada K, Kaneko H, Green MG, Chappell J, Wilting J, Weich HA, Yamagami S, Amano S, Mizuki N, Alexander JS, Peterson ML, Brekken RA, Hirashima M, Capoor S, Usui T, Ambati BK, Ambati J. Alternatively spliced vascular endothelial growth factor receptor-2 is an essential endogenous inhibitor of lymphatic vessel growth. Nat Med 2009; 15:1023-30. [PMID: 19668192 PMCID: PMC2882165 DOI: 10.1038/nm.2018] [Citation(s) in RCA: 274] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Accepted: 07/09/2009] [Indexed: 11/24/2022]
Abstract
Disruption of the precise balance of positive and negative molecular regulators of blood and lymphatic vessels can lead to myriad diseases that affect one in four people worldwide. Although dozens of natural inhibitors of hemangiogenesis have been identified, an endogenous selective inhibitor of lymphatic vessels has not yet been described. We report the existence of a secreted, splice variant of vascular endothelial growth factor receptor-2 (sVegfr-2) that inhibits developmental and reparative lymphangiogenesis by blocking Vegf-c. Tissue-specific loss of sVegfr-2 in mice induced, at birth, spontaneous lymphatic invasion of the normally alymphatic cornea and hyperplasia of skin lymphatics without accompanying changes in blood vasculature. sVegfr-2 inhibited lymphangiogenesis but not hemangiogenesis induced by corneal suture injury or transplantation, enhanced corneal allograft survival, and suppressed lymphangioma cellular proliferation. Naturally occurring sVegfr-2 is a molecular uncoupler of blood and lymphatic vessels whose modulation might have a therapeutic role in lymphatic vascular malformations, transplantation, and potentially in tumor lymphangiogenesis and lymphedema.
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Itakura E, Yamamoto H, Oda Y, Furue M, Tsuneyoshi M. VEGF-C and VEGFR-3 in a series of lymphangiomas: is superficial lymphangioma a true lymphangioma? Virchows Arch 2009; 454:317-25. [PMID: 19151999 DOI: 10.1007/s00428-008-0720-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 11/24/2008] [Accepted: 12/10/2008] [Indexed: 11/24/2022]
Abstract
Lymphangiomas are commonly regarded as vascular malformations during embryonic development rather than as true neoplasms. VEGF-C and VEGFR-3 are known to be active in the formation of lymphangiomas. However, the significance of the disorders seems to be obscured by confusing different entities. In 114 lymphangiomas, we investigated the clinicopathological features and the expression of VEGF-C and VEGFR-3. The age of patients with lymphangioma circumscriptum or intraabdominal lymphangioma was significantly higher than in patients with cavernous lymphangioma and in patients with cystic hygroma. In cavernous lymphangioma, the age of female patients was significantly higher than in male patients. Five adult cystic hygromas were identified. VEGF-C was detected in 21 of 58 (36%) cavernous lymphangiomas, ten of 28 (36%) cystic hygromas, 0 of 12 (0%) lymphangioma circumscriptum, and four of ten (40%) intraabdominal lymphangiomas. VEGFR-3 was detected in 43 of 58 (72%) cavernous lymphangiomas, 20 of 28 (71%) cystic hygromas, six of 12 (50%) lymphangiomas circumscriptum, and seven of ten (70%) intraabdominal lymphangiomas. VEGF-C was absent from superficial lymphangiomas associated with cavernous lymphangiomas. In typical cases of cavernous lymphangioma, VEGF-C was strongly expressed, suggesting that these cases possessed proliferative activity. In cystic hygroma and intraabdominal lymphangioma, VEGF-C was limited in its distribution. Superficial lymphangiomas more likely represent from peripheral lymphatic dilatation rather than due to growth factor.
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Affiliation(s)
- Eijun Itakura
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, 3-1-1Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Pathogenesis of lymphangiomas. Virchows Arch 2008; 453:1-8. [PMID: 18500536 DOI: 10.1007/s00428-008-0611-z] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2007] [Revised: 03/27/2008] [Accepted: 03/28/2008] [Indexed: 12/21/2022]
Abstract
Based on various hypotheses concerning lymphangiogenesis published in the literature, different putative mechanisms of lymphangioma development are discussed including failure of the lymphatic system to connect with or separate from the venous system, abnormal budding of the lymphatic system from the cardinal vein, or acquired processes such as traumata, infections, chronic inflammations, and obstructions. Increasingly, the possible influence of lymphangiogenic growth factors on the development of lymphangiomas is discussed. The proved expression of different growth factors in the endothelium of lymphangiomas leads to new hypotheses regarding the pathogenesis of lymphangiomas. Thus, further studies on the lymphangiogenesis and the development of lymphangiomas will have to clarify as to whether lymphangiomas are true malformations or neoplastic in nature.
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Siekmann AF, Covassin L, Lawson ND. Modulation of VEGF signalling output by the Notch pathway. Bioessays 2008; 30:303-13. [PMID: 18348190 DOI: 10.1002/bies.20736] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The formation of blood vessels within the vascular system entails a variety of cellular processes, including proliferation, migration and differentiation. In many cases, these diverse processes need to be finely coordinated among neighbouring endothelial cells in order to establish a functional vascular network. For instance, during angiogenic sprouting specialized endothelial tip cells follow guidance cues and migrate extensively into avascular tissues while trailing stalk cells must stay connected to the patent blood vessel. The vascular endothelial growth factor (VEGF) and Notch signalling pathways have emerged as the major players in governing these different cellular behaviours. In particular, recent work indicates an important role for Notch signalling in determining how an endothelial cell responds to VEGF. In this review, we provide an overview of these biochemically distinct pathways and discuss how they may interact during endothelial cell differentiation and angiogenesis.
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Affiliation(s)
- Arndt F Siekmann
- Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA
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de Vries JJ, Vogten JM, de Bruin PC, Boerma D, van de Pavoordt HDWM, Hagendoorn J. Mesenterical lymphangiomatosis causing volvulus and intestinal obstruction. Lymphat Res Biol 2008; 5:269-73. [PMID: 18370918 DOI: 10.1089/lrb.2007.1010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Lymphangiomas are benign tumors consisting of lymphatic vasculature that generally occur in the skin and soft tissues. Rarely, lymphangiomas occur in the gastrointestinal tract. Here, we report a case of a 13-year-old girl presenting with an intestinal obstruction. Upon laparotomy, multiple cystic masses in the mesentery causing a volvulus were resected and histologically identified as multiple lymphangiomas, or lymphangiomatosis. Mesenteric lymphangioma is a rare entity, but should be considered as cause of bowel obstruction without other known abdominal disease. As the etiology of lymphangiomas remains elusive, further research is directed at unravelling the mechanistic and molecular factors contributing to this disease.
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Affiliation(s)
- Jan J de Vries
- Department of General Surgery, St Antonius Hospital, Nieuwegein, The Netherlands
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Itakura E, Yamamoto H, Oda Y, Tsuneyoshi M. Detection and characterization of vascular endothelial growth factors and their receptors in a series of angiosarcomas. J Surg Oncol 2008; 97:74-81. [PMID: 18041747 DOI: 10.1002/jso.20766] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Angiosarcomas are malignant mesenchymal neoplasms, including sarcomas of presumptive vascular endothelial origin and sarcomas of probable lymphatic origin. It is, however, often difficult to determine whether they are from blood vascular or lymphatic endothelium. The majority of angiosarcomas are thought to originate from vascular endothelia and spread via bloodstream to lung, but lymphatic metastases can occur. METHODS We investigated immunohistochemical expression of vascular endothelial growth factors (VEGF-A, VEGF-C) and their receptors (VEGFR-1, VEGFR-2, VEGFR-3) in a series of 34 angiosarcomas. RESULTS VEGF-A was expressed by 32/34 (94%), VEGF-C by 4/34 (12%), VEGFR-1 by 32/34 (94%), VEGFR-2 by 22/34 (65%), and VEGFR-3 by 27/34 (79%). Patients who expressed low or no VEGFR-2 showed a significantly unfavorable prognosis by log-rank test (P = 0.010) and multivariate analysis (hazard ratio, 5.16; 95% CI, 1.40-19.04; P = 0.014). VEGFR-1 and VEGFR-3 were not significantly associated with patients' prognosis. CONCLUSIONS VEGF-A and VEGFR-1 were detected in diverse subtypes of angiosarcomas. In cooperation, VEGF-A and VEGF-C are likely to be involved in the development of angiosarcoma associated with lymphedema. VEGF-C expression may cause susceptibility to lymphatic metastasis through tumor lymphangiogenesis. Angiosarcoma of the scalp, which is traditionally considered as a true hemangiosarcoma, may include some cases of lymphatic origin.
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Affiliation(s)
- Eijun Itakura
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Elevated expression of VEGFR-3 in lymphatic endothelial cells from lymphangiomas. BMC Cancer 2007; 7:105. [PMID: 17584927 PMCID: PMC1925108 DOI: 10.1186/1471-2407-7-105] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2006] [Accepted: 06/21/2007] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Lymphangiomas are neoplasias of childhood. Their etiology is unknown and a causal therapy does not exist. The recent discovery of highly specific markers for lymphatic endothelial cells (LECs) has permitted their isolation and characterization, but expression levels and stability of molecular markers on LECs from healthy and lymphangioma tissues have not been studied yet. We addressed this problem by profiling LECs from normal dermis and two children suffering from lymphangioma, and also compared them with blood endothelial cells (BECs) from umbilical vein, aorta and myometrial microvessels. METHODS Lymphangioma tissue samples were obtained from two young patients suffering from lymphangioma in the axillary and upper arm region. Initially isolated with anti-CD31 (PECAM-1) antibodies, the cells were separated by FACS sorting and magnetic beads using anti-podoplanin and/or LYVE-1 antibodies. Characterization was performed by FACS analysis, immunofluorescence staining, ELISA and micro-array gene analysis. RESULTS LECs from foreskin and lymphangioma had an almost identical pattern of lymphendothelial markers such as podoplanin, Prox1, reelin, cMaf and integrin-alpha1 and -alpha9. However, LYVE-1 was down-regulated and VEGFR-2 and R-3 were up-regulated in lymphangiomas. Prox1 was constantly expressed in LECs but not in any of the BECs. CONCLUSION LECs from different sources express slightly variable molecular markers, but can always be distinguished from BECs by their Prox1 expression. High levels of VEGFR-3 and -2 seem to contribute to the etiology of lymphangiomas.
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Abstract
OBJECTIVE To study the histomorphometrical characteristics of lymphatic vessels in cavernous lymphangiomas of the tongue. MATERIAL AND METHODS Immunohistochemical stainings were prepared in the 20 specimens with three antibodies [D2-40, CD31 and proliferating cell nuclear antigen (PCNA)]. Three-dimensional (3D) reconstruction and histometrical analysis of the lymphatic vessels was also examined. RESULTS Distinctly positive staining for D2-40 was found in dilated lymphatic vessels located in the lamina propria beneath the thinned covering epithelium. Small blood vessels stained positively for CD31 were present in the lamina propria. PCNA-positive lymphatic endothelial cells were scattered in both control and lymphangioma. The 3D architecture of lymphatic vessels was characterized by a complex network with irregular branches in the lamina propria. Histometrical analysis showed that the number of lymphatic endothelial cells per lymphatic vessel perimeter in cavernous lymphangioma was significantly higher than that in control. There were no significant differences in the lymphatic density and the ratio of PCNA-positive lymphatic endothelial cell nuclei to the total number of lymphatic endothelial cell nuclei between control and lymphangioma. CONCLUSIONS These results indicate the absence of excessive endothelial cell proliferation in dilated lymphatic vessels in cavernous lymphangioma. Cavernous lymphangioma may be attributed to the enlargement of lymphatic vessels without the tumorous proliferation of lymphatic endothelial cells.
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Affiliation(s)
- T Yaita
- Division of Oral Pathology, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Ikeda JI, Morii E, Tomita Y, Zhang B, Tokunaga T, Inoue M, Minami M, Okumura M, Aozasa K. Mediastinal lymphangiomatosis coexisting with occult thymic carcinoma. Virchows Arch 2006; 450:211-4. [PMID: 17120029 DOI: 10.1007/s00428-006-0333-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2006] [Accepted: 10/17/2006] [Indexed: 11/25/2022]
Abstract
Mediastinal lymphangiomatosis in a 70-year-old woman was diagnosed on a medical checkup. The tumor was resistant to sclerotherapy with OK432 or bleomycin. The patient continued on a downhill course and died approximately 3 years after the initial diagnosis. Autopsy revealed a large tumor mass occupying the anterior mediastinum and firmly adhered to the pericardium and the pleura. The tumor consisted of two intermingled lesions: dilated vessels lined with D2-40-positive lymphatic endothelium and CD5-positive atypical cell nests with focal keratinization. The former was diagnosed as lymphangiomatosis and the latter as thymic squamous cell carcinoma. Vascular endothelial growth factor (VEGF)-C, a growth factor for lymphatic endothelial cells, was expressed by the carcinoma, and VEGF-C receptor was expressed by the endothelium of lymphangiomatosis. These findings suggested that VEGF-C derived from the thymic carcinoma induced the lymphangiomatosis lesion in a paracrine manner.
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Affiliation(s)
- Jun-ichiro Ikeda
- Department of Pathology, Graduate School of Medicine, Osaka University, Yamada-oka 2-2, Suita 565-0871, Japan
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Abstract
Endothelial cells play a key role in the development and function of blood and lymph vessels. Excessive proliferation and transformation of endothelial cells lead to pathological angiogenesis/lymphangiogenesis or vascular malfunctions which are hallmarks of malignant disorders. There is emerging evidence that circulating endothelial progenitor cells (EPCs) also contribute significantly to these processes. Major progress has been achieved over the past few years in the identification of key molecules involved, and in targeting tumour angiogenesis for human therapy. Current research efforts are concentrated on deciphering the origin and functional properties of endothelium in various tumours, as well as endothelial neoplasms themselves. The aim of these studies is to investigate the molecular mechanisms regulating mobilisation of EPCs from bone marrow, and their homing and differentiation into mature endothelium in situ at sites of neovascularisation, as well as the role of viral oncogenes in regulating the plasticity and extending the life span of endothelial cells. Integrated understanding of the mechanisms regulating the properties and function of endothelial cells during tumourigenesis is resulting in the development of a number of exciting and bold approaches for the treatment of cancer.
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Affiliation(s)
- L Nikitenko
- CR U.K. Viral Oncology Group, Wolfson Institute for Biomedical Research, UCL, London WC1E 6BT, UK.
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Favier B, Alam A, Barron P, Bonnin J, Laboudie P, Fons P, Mandron M, Herault JP, Neufeld G, Savi P, Herbert JM, Bono F. Neuropilin-2 interacts with VEGFR-2 and VEGFR-3 and promotes human endothelial cell survival and migration. Blood 2006; 108:1243-50. [PMID: 16621967 DOI: 10.1182/blood-2005-11-4447] [Citation(s) in RCA: 213] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Neuropilin 2 (NRP2) is a receptor for the vascular endothelial growth factor (VEGF) and the semaphorin (SEMA) families, 2 unrelated ligand families involved in angiogenesis and neuronal guidance. NRP2 specifically binds VEGF-A and VEGF-C, although the biological relevance of these interactions in human endothelial cells is poorly understood. In this study, we show that both VEGF-A and VEGF-C induce the interaction of NRP2 with VEGFR-2. This interaction correlated with an enhancement of the VEGFR-2 phosphorylation threshold. Overexpression of NRP2 in primary human endothelial cells promoted cell survival induced by VEGF-A and VEGF-C. In contrast, SEMA3F, another ligand for NRP2, was able to inhibit human endothelial cell survival and migration induced by VEGF-A and VEGF-C. Moreover, a siRNA targeting specifically NRP2 was a potent inhibitor of human endothelial cell migration induced by VEGF-A and VEGF-C. Thus, our data indicate that NRP2 acts as a coreceptor that enhances human endothelial cell biological responses induced by VEGF-A and VEGF-C.
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Affiliation(s)
- Benoit Favier
- Angiogenesis and Thrombosis Department, Sanofi-Synthelabo Research, 31036 Toulouse, France
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Qutub W, Lewis K, Gonzalez R, Quaife R, Russ P, Mccarter M. Lymphangiomatosis Masquerading as Metastatic Melanoma. Am Surg 2006. [DOI: 10.1177/000313480607200420] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A patient undergoing evaluation for malignant melanoma was thought to have a metastatic process involving the anterior mediastinum, axilla, spleen, and possibly liver based on radiologic findings from positron emission tomography and computed tomography scans. The clinical picture did not corroborate this suspicion, and biopsies ultimately confirmed lymphangioma in the accessory spleen and subcutaneous tissues, leading to a diagnosis of lymphangiomatosis. Diagnosis and management of lymphangiomatosis is clinically challenging. This report reviews the literature on the pathology, diagnostic imaging, and management of lymphangiomatosis.
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Affiliation(s)
- William Qutub
- Departments of Surgery, University of Colorado Health Sciences Center, Denver, Colorado
| | - Karl Lewis
- Departments of Medicine, University of Colorado Health Sciences Center, Denver, Colorado
| | - Rene Gonzalez
- Departments of Medicine, University of Colorado Health Sciences Center, Denver, Colorado
| | - Robert Quaife
- Departments of Radiology, University of Colorado Health Sciences Center, Denver, Colorado
| | - Paul Russ
- Departments of Radiology, University of Colorado Health Sciences Center, Denver, Colorado
| | - Martin Mccarter
- Departments of Surgery, University of Colorado Health Sciences Center, Denver, Colorado
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Jüttner S, Wissmann C, Jöns T, Vieth M, Hertel J, Gretschel S, Schlag PM, Kemmner W, Höcker M. Vascular Endothelial Growth Factor-D and Its Receptor VEGFR-3: Two Novel Independent Prognostic Markers in Gastric Adenocarcinoma. J Clin Oncol 2006; 24:228-40. [PMID: 16344322 DOI: 10.1200/jco.2004.00.3467] [Citation(s) in RCA: 177] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Purpose Vascular endothelial growth factor (VEGF)-D and its homolog VEGF-C influence lymphangiogenesis through activation of VEGF receptor 3 (VEGFR-3), and have been implicated in lymphatic tumor spread. Nodal dissemination of gastric adenocarcinomas critically determines clinical outcome and therapeutic options of affected patients. Therefore, we analyzed expression and prognostic significance of VEGF-D along with VEGF-C, and VEGFR-3 in gastric adenocarcinomas. Materials and Methods VEGF-C, VEGF-D, and VEGFR-3 were analyzed in 91 R0-resected primary gastric adenocarcinomas, corresponding noncancerous gastric mucosa, and lymph node metastases employing immunohistochemistry and/or in situ hybridization. Blood and lymph vessel densities were assessed after staining with CD31 and LYVE-1–specific antibodies. Results VEGF-D and VEGF-C were detected in 67.0% and 50.5% of gastric cancers, respectively. Healthy gastric mucosa was negative for VEGF-C and in 12.5% positive for VEGF-D. Presence of VEGF-D (P = .005) or VEGF-C (P = .006) was correlated with lymphatic metastases and decreased survival (VEGF-D, P < .05; VEGF-C, P < .05). VEGFR-3 was correlated with reduced carcinoma-specific survival (P < .05), and Cox multivariate regression analysis qualified VEGF-D and VEGFR-3, but not VEGF-C, as independent prognostic parameters. In lymph node–positive gastric cancers, presence of VEGF-D/VEGFR-3 was associated with poor survival, whereas absence of VEGF-D/VEGFR-3 defined a subgroup of patients with clearly favorable prognosis. Conclusion VEGF-D and VEGFR-3 are novel independent prognostic marker molecules aiding to identify patients with poor prognosis after curative resection of gastric adenocarcinomas. Combined analysis of the VEGF-C/VEGF-D/VEGFR-3 system can be useful to identify patients with unfavorable clinical outcome and thereby may help to refine therapeutic decisions in gastric cancer.
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Affiliation(s)
- Stefan Jüttner
- Laboratory for Angiogenesis and Tumor Metastasis, Charité, Campus Virchow-Klinikum, Berlin, Germany
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Bassi DE, Fu J, Lopez de Cicco R, Klein-Szanto AJP. Proprotein convertases: "master switches" in the regulation of tumor growth and progression. Mol Carcinog 2005; 44:151-61. [PMID: 16167351 DOI: 10.1002/mc.20134] [Citation(s) in RCA: 180] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Proprotein convertases (PCs) are a group of Ca2+-dependent serine proteases that have homology to the endoproteases subtilisin (bacteria) and kexin (yeast). This group is comprised of less than a dozen members, known as furin/PACE, PC1/PC3, PC2, PC4, PACE4, PC5/PC6, PC7/PC8/LPC, SKI/S1P, and NARC-1/PCSK9. Four PCs (Furin, PACE4, PC5, and PC7) have been localized to several different tissues and epithelial or nervous system tumors. PCs activate their cognate substrates by limited proteolysis at the consensus sequence RXR/KR downward arrow. Many PC substrates are well known cancer-associated proteins such as growth factors, growth factor receptors, integrins, and matrix metalloproteases (MMPs). For example, IGF-1 and its receptor, TGF-beta, VEGF-C, and MT-MMPs have direct roles in tumor progression and metastasis. Furin, a well-studied member of the PC family, has been associated with enhanced invasion and proliferation in head and neck, breast, and lung cancer. Conversely, inhibition of PC activity by PDX or several PC pro-segments, resulted in reduced processing of these key cancer-related substrates in human squamous cell carcinomas (SCC), colon adenocarcinoma, and astrocytoma cell lines. In parallel to these changes in cell proliferation and invasiveness as well as metastatic ability were markedly impaired. By controlling the maturation/activation of key cancer-associated proteins, PCs act as "master switches" at different levels during tumor development and progression. The manifold effects of PCs, influencing tumor cell proliferation, motility, adhesiveness, and invasiveness, should be exploited by further developing competitive/inhibitory therapeutic strategies that would be able to neutralize simultaneously the most salient cancer cell properties.
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Affiliation(s)
- Daniel E Bassi
- Department of Pathology and Tumor Cell Biology Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
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Davidoff AM, Ng CYC, Zhang Y, Streck CJ, Mabry SJ, Barton SH, Baudino T, Zhou J, Kerbel RS, Vanin EF, Nathwani AC. Careful decoy receptor titering is required to inhibit tumor angiogenesis while avoiding adversely altering VEGF bioavailability. Mol Ther 2005; 11:300-10. [PMID: 15668142 DOI: 10.1016/j.ymthe.2004.09.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2003] [Accepted: 09/15/2004] [Indexed: 01/16/2023] Open
Abstract
To inhibit tumor-induced angiogenesis, the VEGF signaling pathway was targeted using AAV vectors encoding a VEGF decoy receptor, a truncated, soluble form of the murine VEGF receptor-2 (tsFlk-1). This approach initially had significant anti-neuroblastoma efficacy in murine xenograft models of local and metastatic disease, but when higher circulating levels of tsFlk-1 were established, tumor growth was more aggressive than even in control mice. Part of the mechanism for this apparent tumor resistance was increased human VEGF expression by the tumor cells. However, further investigation revealed that although a greater amount of VEGF could be bound by higher levels of tsFlk-1, more VEGF also existed in an unbound state and was, therefore, available to support angiogenesis. This novel, tumor-independent mechanism for resistance to antiangiogenic strategies suggests that careful titering of angiogenesis inhibitors may be required to achieve maximal antitumor efficacy and avoid therapy resistance mediated, in part, by ligand bioavailability. This has important implications for therapeutic strategies that use decoy receptors and other agents, such as antibodies, to bind angiogenic factors, in an attempt to inhibit tumor neovascularization.
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Affiliation(s)
- Andrew M Davidoff
- Department of Surgery St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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López de Cicco R, Watson JC, Bassi DE, Litwin S, Klein-Szanto AJ. Simultaneous expression of furin and vascular endothelial growth factor in human oral tongue squamous cell carcinoma progression. Clin Cancer Res 2005; 10:4480-8. [PMID: 15240540 DOI: 10.1158/1078-0432.ccr-03-0670] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Squamous cell carcinoma (SCC) of the tongue is a common malignancy of the oral cavity. Furin convertase activates several precursor matrix metalloproteinases involved in the degradation of the extracellular matrix. The pattern of expression of furin and vascular endothelial growth factor-C (VEGF-C), two key molecules in neoplasm development, was examined during the progression from normal epithelium to invasive SCC. EXPERIMENTAL DESIGN We evaluated furin and VEGF-C expression and microvessel density (MVD) by immunohistochemistry in human tongue sections harboring normal epithelium, dysplastic epithelium, and/or SCC. Sections from 46 glossectomy specimens were assessed for furin expression. A selected group of 15 cases, each containing normal epithelium, precursor lesions, and invasive SCC, were further studied for furin and VEGF-C expression and MVD quantification. We also evaluated the pattern of furin expression and VEGF-C processing by Western blot analysis in three SCC cell lines with different degrees of aggressiveness. RESULTS Furin and VEGF-C expression was notably higher in most precursor lesions and SCCs than in normal epithelia. Approximately 60% (n = 26) and 100% (n = 15) of the normal epithelia showed low-intensity staining for furin and VEGF-C, respectively. Intense staining for furin and VEGF-C was detected in approximately 80% (n = 34) and 100% (n = 15) of the SCCs, respectively. A significant correlation was seen between the expression of these two markers (Spearman's test, P < 0.00002). We found a statistically significant increase in MVD when either dysplasia (432 +/- 19.06; P < 0.05) or SCC (546 +/- 17.24) was compared with normal epithelium (315 +/- 17.27; P < 0.0001). SCC71, the most aggressive cell line analyzed, was the one with the highest furin expression. This cell line totally processed the VEGF-C proform, whereas the less aggressive line SCC9, exhibiting the least furin expression, did not. SCC15, of intermediate aggressiveness and furin expression, showed intermediate pro-VEGF-C processing. CONCLUSIONS These findings suggest that furin is a useful marker of tumor progression and is responsible for VEGF-C processing. This in turn would enhance angiogenesis, leading to increased MVD associated with preinvasive and invasive neoplasia.
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Abstract
PURPOSE OF REVIEW Innovative otolaryngologists, plastic surgeons, craniofacial surgeons, pediatric surgeons, radiologists, anesthesiologists, neonatologists, obstetricians, and scientists have continued to advance our understanding of the etiology, diagnosis, and treatment of lymphatic malformations. This article reviews the publications over the past 2 years with respect to these advances. RECENT FINDINGS Fast-sequence MRI limits motion artifacts and allows prenatal MR to be used as a complementary study to ultrasound in the evaluation of large congenital neck masses. Three-dimensional ultrasonography may also be helpful in evaluating prenatal lymphatic malformations. Fluorescence in situ hybridization techniques can be used to evaluate lymphatic malformations for prenatal chromosomal analysis with emphasis on chromosomes 13, 18, 21, X, and Y. The sclerosing agent OK-432 is effective for macrocystic lymphatic malformations but showed less promise for microcystic lesions, mixed lesions, and lesions outside the head and neck region. Somnoplasty shows promise for reduction of tongue lymphatic malformations. Surgical excision, staged when necessary, continues to be integral to management in many cases. SUMMARY Basic science research has furthered understanding of lymphatic malformations. Clinical research has expanded and refined our diagnostic and therapeutic options for patients with these lesions. Further identification of genes selectively expressed by lymphatic endothelium should facilitate identification of usable vascular markers that can enable analysis of the underlying biology, physiology, pathology, and treatment of the lymphatic system and its malformations.
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Affiliation(s)
- David C Bloom
- Department of Otolaryngology/Head and Neck Surgery University of Washington, Division of Pediatric Otolaryngology Children's Hospital and Regional Medical Center, Seattle, Washington 98105, USA
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Alam A, Herault JP, Barron P, Favier B, Fons P, Delesque-Touchard N, Senegas I, Laboudie P, Bonnin J, Cassan C, Savi P, Ruggeri B, Carmeliet P, Bono F, Herbert JM. Heterodimerization with vascular endothelial growth factor receptor-2 (VEGFR-2) is necessary for VEGFR-3 activity. Biochem Biophys Res Commun 2004; 324:909-15. [PMID: 15474514 DOI: 10.1016/j.bbrc.2004.08.237] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2004] [Indexed: 11/20/2022]
Abstract
VEGFR-3 is essential for vascular development and maintenance of lymphatic vessel's integrity. Little is known about its cooperative effect with other receptors of the same family. Contrary to VEGFR-2, stimulation of VEGFR-3 by VEGF-C and -D failed to enhance its phosphorylation either in HEK293T or in PAE cells. These ligands were unable to induce angiogenesis of PAEC expressing VEGFR-3 alone. In the presence of VEGFR-2, VEGF-C and -D induced heterodimerization of VEGFR-3 with VEGFR-2. This heterodimerization was associated with enhanced VEGFR-3 phosphorylation and subsequent cellular responses as evidenced by the formation of capillary-like structures in PAE cells and proliferation of primary human endothelial cells expressing both receptors. Taken together, these results show for the first time that VEGFR-3 needs to be associated to VEGFR-2 to induce ligand-dependent cellular responses.
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Affiliation(s)
- Antoine Alam
- Sanofi-Synthélabo Research, Cardiovascular Department, Toulouse, France
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Nozaki K, Inomoto T, Takagi Y, Hashimoto N. Spinal intradural extramedullary cavernous angioma. J Neurosurg Spine 2003; 99:316-9. [PMID: 14563152 DOI: 10.3171/spi.2003.99.3.0316] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
✓ The spinal intradural extramedullary cavernous angioma is a rare clinical entity. Only 20 surgically treated cases have been reported. The authors report on an additional case in which the lesion was located in the cervical region, and they summarize its unique clinical features. Intradural extramedullary cavernous angiomas occur predominantly in males, in the lower thoracolumbar region, exhibit a relatively high association with subarachnoid hemorrhage, and mostly adhere to the nerve root or spinal cord. Because resection is possible without causing morbidity and because outcome depends on the severity of preoperative neurological dysfunction, precise diagnosis and timely treatment are mandatory.
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Affiliation(s)
- Kazuhiko Nozaki
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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Siegfried G, Basak A, Cromlish JA, Benjannet S, Marcinkiewicz J, Chrétien M, Seidah NG, Khatib AM. The secretory proprotein convertases furin, PC5, and PC7 activate VEGF-C to induce tumorigenesis. J Clin Invest 2003. [DOI: 10.1172/jci200317220] [Citation(s) in RCA: 159] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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49
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Siegfried G, Basak A, Cromlish JA, Benjannet S, Marcinkiewicz J, Chrétien M, Seidah NG, Khatib AM. The secretory proprotein convertases furin, PC5, and PC7 activate VEGF-C to induce tumorigenesis. J Clin Invest 2003; 111:1723-32. [PMID: 12782675 PMCID: PMC156106 DOI: 10.1172/jci17220] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2002] [Accepted: 03/19/2003] [Indexed: 01/13/2023] Open
Abstract
The secretory factor VEGF-C has been directly implicated in various physiological processes during embryogenesis and human cancers. However, the importance of the conversion of its precursor proVEGF-C to mature VEGF-C in tumorigenesis, and vessel formation and the identity of the protease(s) that regulate these processes is/are not known. The intracellular processing of proVEGF-C that occurs within the dibasic motif HSIIRR(227)SL suggests the involvement of the proprotein convertases (PCs) in this process. In addition, furin and VEGF-C were found to be coordinately expressed in adult mouse tissues. Cotransfection of the furin-deficient colon carcinoma cell line LoVo with proVEGF-C and different PC members revealed that furin, PC5, and PC7 are candidate VEGF-C convertases. This finding is consistent with the in vitro digestions of an internally quenched synthetic fluorogenic peptide mimicking the cleavage site of proVEGF-C ((220)Q-VHSIIRR downward arrow SLP(230)). The processing of proVEGF-C is blocked by the inhibitory prosegments of furin, PC5, and PACE4, as well as by furin-motif variants of alpha2-macroglobulin and alpha1-antitrypsin. Subcutaneous injection of CHO cells stably expressing VEGF-C into nude mice enhanced angiogenesis and lymphangiogenesis, but not tumor growth. In contrast, expression of proVEGF-C obtained following mutation of the cleavage site (HSIIRR(227)SL to HSIISS(227)SL) inhibits angiogenesis and lymphangiogenesis as well as tumor growth. Our findings demonstrate the processing of proVEGF-C by PCs and highlight the potential use of PC inhibitors as agents for inhibiting malignancies induced by VEGF-C.
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Affiliation(s)
- Geraldine Siegfried
- Laboratory of Biochemical Neuroendocrinology, Clinical Research Institute of Montreal, Montreal, Quebec, Canada
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Bussolati B, Deambrosis I, Russo S, Deregibus MC, Camussi G. Altered angiogenesis and survival in human tumor-derived endothelial cells. FASEB J 2003; 17:1159-61. [PMID: 12709414 DOI: 10.1096/fj.02-0557fje] [Citation(s) in RCA: 216] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Knowledge on the functional properties of tumor-derived endothelial cells (TEC) can be relevant for the development of antiangiogenic therapeutic strategies. In the present study, we obtained and characterized endothelial cell lines from human renal carcinomas. TEC did not undergo senescence and showed constant expression of markers of endothelial activation and angiogenesis. In vitro, TEC, in contrast to normal endothelial cells, were resistant to apoptosis, proadhesive for renal carcinoma cells, and able to grow and organize in the absence of serum in persistent capillary-like structures. In vivo, TEC were able to grow in immunodeficient mice and to form vascular structures connected with the circulation. At a molecular level, gene array analysis showed an increased expression of genes involved in survival and cell adhesion compared with expression in normal microvascular endothelial cells. Moreover, expression of angiopoietin-1 and vascular endothelial growth factor (VEGF)-D and the Akt survival pathway were up-regulated. Inhibition of interaction of VEGFR-2 or VEGFR-3 with VEGF-D but not of Tie-2-angiopoietin-1 interaction with soluble receptors abrogated Akt activation and survival of TEC. These results indicate that at least some of the TEC within a tumor display abnormal characteristics in terms of survival and angiogenic properties and also indicate the presence of a functional autocrine pathway related to VEGF-D.
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Affiliation(s)
- Benedetta Bussolati
- Dipartimento di Medicina Interna, Ospedale S. Giovanni Battista, Corso Dogliotti 14, 10126, Torino, Italy.
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