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https://www.readbyqxmd.com/read/28220247/myeloid-cells-pave-the-way-for-lymphatic-system-development-and-maintenance
#1
REVIEW
Stoyan Ivanov, Gwendalyn J Randolph
The maintenance of tissue homeostasis is indispensable for health. In particular, removal of toxic compounds from cells and organs is a vital process for the organism. The lymphatic vasculature works in order to ensure the efficient removal of tissue waste. Forbidden over the last decade when more attention was paid to the blood vasculature, studies on the lymphatic vasculature have gained momentum during the last couple of years. The lymphatic vasculature naturally runs parallel to the blood vasculature and their synergistic work is critical for maintaining tissue homeostasis...
February 20, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28217128/tumor-associated-lymphatic-vessels-upregulate-pdl1-to-inhibit-t-cell-activation
#2
Lothar C Dieterich, Kristian Ikenberg, Timur Cetintas, Kübra Kapaklikaya, Cornelia Hutmacher, Michael Detmar
Tumor-associated lymphatic vessels (LVs) play multiple roles during tumor progression, including promotion of metastasis and regulation of antitumor immune responses by delivering antigen from the tumor bed to draining lymph nodes (LNs). Under steady-state conditions, LN resident lymphatic endothelial cells (LECs) have been found to maintain peripheral tolerance by directly inhibiting autoreactive T-cells. Similarly, tumor-associated lymphatic endothelium has been suggested to reduce antitumor T-cell responses, but the mechanisms that mediate this effect have not been clarified...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28211204/evaluation-of-the-enhanced-permeability-and-retention-effect-in-the-early-stages-of-lymph-node-metastasis
#3
Mamoru Mikada, Ariunbuyan Sukhbaatar, Yoshinobu Miura, Sachiko Horie, Maya Sakamoto, Shiro Mori, Tetsuya Kodama
Most solid cancers spread to new sites via the lymphatics before hematogenous dissemination. However, only a small fraction of an intravenously administered anti-cancer drug enters the lymphatic system to reach metastatic lymph nodes (LNs). Here, we show that the enhanced permeability and retention (EPR) effect is not induced during the early stages of LN metastasis. Luciferase-expressing tumor cells were injected into the subiliac LN of the MXH10/Mo-lpr/lpr mouse to induce metastasis to the proper axillary LN (PALN)...
February 17, 2017: Cancer Science
https://www.readbyqxmd.com/read/28203117/peritumoral-lymphatic-vessel-density-and-invasion-detected-with-immunohistochemical-marker-d240-is-strongly-associated-with-distant-metastasis-in-breast-carcinoma
#4
Nur Fatiha Norhisham, Choi Yen Chong, Sabreena Safuan
BACKGROUND: Detection of vascular invasion by hematoxylin and eosin staining is the current pathological assessment practice to diagnose breast carcinoma. However, conventional hematoxylin and eosin staining failed to distinguish between blood vessel invasion and lymphatic vessel invasion. Both are important prognostic criteria however with different outcomes. The aim of this study is to distinguish between blood vessel invasion and lymphatic vessel invasion using conventional assessment and immunohistochemical markers...
2017: BMC Clinical Pathology
https://www.readbyqxmd.com/read/28195247/type-ii-congenital-pulmonary-airway-malformation-associated-with-intralobar-pulmonary-sequestration-report-of-a-case-and-review-of-classification-criteria
#5
M G Mastrogiulio, A Barone, M G Disanto, A Ginori, M R Ambrosio, S F Carbone, D Spina
Pulmonary congenital abnormalities are rare disorders including congenital pulmonary airway malformations (CPAM) and pulmonary sequestration (PS). CPAM is a lesion characterized by the presence of anomalous bronchiolar or acinar structures, variable in size, either cystic or not cystic. PS is generally defined as nonfunctioning lung tissue that is not in normal continuity with the tracheobronchial tree and that derives its blood supply from systemic vessels. We describe a case of a baby girl with a very rare association between CPAM type 2 and intralobar pulmonary sequestration (IPS) focusing on the cystic lesions typical of CPAM and on the lymphatic and blood vessels...
March 2016: Pathologica
https://www.readbyqxmd.com/read/28188441/factors-that-may-influence-polymorphous-low-grade-adenocarcinoma-growth
#6
Andresa Borges Soares, Elizabeth Ferreira Martinez, Patricia Fernandes Avila Ribeiro, Icleia Siqueira Barreto, Maria Cássia Aguiar, Cristiane Furuse, Marcelo Sperandio, Victor Angelo Montalli, Ney Soares de Araújo, Vera Cavalcanti de Araújo
There is mounting evidence on the importance of some biological processes in tumor growth, such as vascular supply, apoptosis, autophagy, and senescence. We have investigated these processes in polymorphous low-grade adenocarcinoma (PLGA), in an attempt to identify those that are relevant for this particular lesion. We analyzed 31 cases of PLGA using immunohistochemistry to antibodies against CD34 and CD105 to detect blood vessels; against D2-40 to detect lymphatic vessels; against Bax, Bcl-2, and survivin to explore cell apoptosis; and against Beclin and LCB3 to investigate autophagy and against p21 and p16 to assess senescence...
February 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28179505/antiangiogenic-cancer-drug-drives-lymphangiogenic-metastasis
#7
Susan Napier Thomas
Tumor blood vessel-destroying cancer drug induces development of tumor lymphatics that contribute to treatment failure.
February 8, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28167653/orai1-activates-proliferation-of-lymphatic-endothelial-cells-in-response-to-laminar-flow-through-kr%C3%A3-ppel-like-factors-2-and-4
#8
Dongwon Choi, Eunkyung Park, Eunson Jung, Young Jin Seong, Mingu Hong, Sunju Lee, James Burford, Georgina Gyarmati, Janos Peti-Peterdi, Sonal Srikanth, Yousang Gwack, Chester J Koh, Evgenii Boriushkin, Anne Hamik, Alex K Wong, Young-Kwon Hong
RATIONALE: Lymphatic vessels function to drain interstitial fluid from a variety of tissues. Although shear stress generated by fluid flow is known to trigger lymphatic expansion and remodeling, the molecular basis underlying flow-induced lymphatic growth is unknown. OBJECTIVE: We aimed to gain a better understanding of the mechanism by which laminar shear stress activates lymphatic proliferation. METHODS AND RESULTS: Primary endothelial cells from dermal blood and lymphatic vessels (BECs and LECs) were exposed to low-rate steady laminar flow...
February 6, 2017: Circulation Research
https://www.readbyqxmd.com/read/28157429/chimeric-anti-human-podoplanin-antibody-nz-12-of-lambda-light-chain-exerts-higher-antibody-dependent-cellular-cytotoxicity-and-complement-dependent-cytotoxicity-compared-with-nz-8-of-kappa-light-chain
#9
Mika K Kaneko, Shinji Abe, Satoshi Ogasawara, Yuki Fujii, Shinji Yamada, Takeshi Murata, Hiroaki Uchida, Hideaki Tahara, Yasuhiko Nishioka, Yukinari Kato
Podoplanin (PDPN), a type I transmembrane 36-kDa glycoprotein, is expressed not only in normal cells, such as renal epithelial cells (podocytes), lymphatic endothelial cells, and pulmonary type I alveolar cells, but also in cancer cells, including brain tumors and lung squamous cell carcinomas. Podoplanin activates platelet aggregation by binding to C-type lectin-like receptor-2 (CLEC-2) on platelets, and the podoplanin/CLEC-2 interaction facilitates blood/lymphatic vessel separation. We previously produced neutralizing anti-human podoplanin monoclonal antibody (mAb), clone NZ-1 (rat IgG2a, lambda), which neutralizes the podoplanin/CLEC-2 interaction and inhibits platelet aggregation and cancer metastasis...
February 3, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28092460/a-three-dimensional-lymphatic-endothelial-cell-tube-formation-assay-to-identify-novel-kinases-involved-in-lymphatic-vessel-remodeling
#10
T Jessica Gambino, Steven P Williams, Carol Caesar, Daniel Resnick, Cameron J Nowell, Rae H Farnsworth, Marc G Achen, Steven A Stacker, Tara Karnezis
The lymphatic system is a series of vessels that transport cells and excess fluid from tissues to the blood vascular system. Normally quiescent, the lymphatics can grow or remodel in response to developmental, immunological, or cells pathological stimuli. Lymphatic vessels comprise lymphatic endothelial cells (LECs) that can respond to external growth factors by undergoing proliferation, migration, adhesion, and tube and lumen formation into new vessel structures, a process known as lymphangiogenesis. To understand the key gene and signaling pathways necessary for lymphangiogenesis and lymphatic vessel remodeling, we have developed a three-dimensional LEC tube formation assay to explore the role of kinase signaling in these processes...
January 2017: Assay and Drug Development Technologies
https://www.readbyqxmd.com/read/28087639/vegfd-modulates-both-angiogenesis-and-lymphangiogenesis-during-zebrafish-embryonic-development
#11
Neil I Bower, Adam J Vogrin, Ludovic Le Guen, Huijun Chen, Steven A Stacker, Marc G Achen, Benjamin M Hogan
Vascular endothelial growth factors (VEGFs) control angiogenesis and lymphangiogenesis during development and in pathological conditions. In the zebrafish trunk, Vegfa controls the formation of intersegmental arteries by primary angiogenesis and Vegfc is essential for secondary angiogenesis, giving rise to veins and lymphatics. Vegfd has been largely thought of as dispensable for vascular development in vertebrates. Here, we generated a zebrafish vegfd mutant by genome editing. vegfd mutants display significant defects in facial lymphangiogenesis independent of vegfc function...
February 1, 2017: Development
https://www.readbyqxmd.com/read/28087600/sunitinib-stimulates-expression-of-vegfc-by-tumor-cells-and-promotes-lymphangiogenesis-in-clear-cell-renal-cell-carcinomas
#12
Maeva Dufies, Sandy Giuliano, Damien Ambrosetti, Audrey Claren, Papa Diogop Ndiaye, Michalis Mastri, Walid Moghrabi, Lindsay S Cooley, Marc Ettaiche, Emmanuel Chamorey, Julien Parola, Valerie Vial, Marilena Lupu-Plesu, Jean Christophe Bernhard, Alain Ravaud, Delphine Borchiellini, Jean-Marc Ferrero, Andréas Bikfalvi, John M Ebos, Khalid Saad Khabar, Renaud Grépin, Gilles Pagès
Sunitinib is an antiangiogenic therapy given as a first-line treatment for renal cell carcinoma (RCC). While treatment improves progression-free survival, most patients relapse. We hypothesized that patient relapse can stem from the development of a lymphatic network driven by the production of the main growth factor for lymphatic endothelial cells, VEGFC. In this study, we found that sunitinib can stimulate vegfc gene transcription and increase VEGFC mRNA half-life. In addition, sunitinib activated p38 MAPK, which resulted in the upregulation/activity of HuR and inactivation of tristetraprolin, two AU-rich element-binding proteins...
January 13, 2017: Cancer Research
https://www.readbyqxmd.com/read/28081372/role-of-hyperplasia-of-gingival-lymphatics-in-periodontal-inflammation
#13
P Papadakou, A Bletsa, M A Yassin, T V Karlsen, H Wiig, E Berggreen
Lymphatic vessels are important for maintenance of tissue fluid homeostasis and afferent antigen transport. In chronic inflammation, lymphangiogenesis takes place and is characterized by lymphatic endothelial cell proliferation and lymphatic hyperplasia. Vascular endothelial growth factor C (VEGFC) is the main known lymphangiogenic growth factor, and its expression is increased in periodontitis, a common chronic infectious disease that results in tissue destruction and alveolar bone loss. The role of lymphangiogenesis during development of periodontitis is unknown...
December 1, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/28063176/frequency-and-phenotype-of-nk-cells-and-nk-cell-subsets-in-bovine-lymphoid-compartments-and-blood
#14
Carly A Hamilton, Suman Mahan, Charlotte R Bell, Bernardo Villarreal-Ramos, Bryan Charleston, Gary Entrican, Jayne C Hope
NK cells are widely distributed in lymphoid and non-lymphoid tissues however little is known about the recirculation of NK cells between blood and tissues. This is relevant to understanding recirculation in the steady-state and also for determining the roles for NK cells in vaccine-induced immunity and responses to infection. Therefore, the percentage of NK cells and their phenotype across peripheral blood, afferent lymph and lymph nodes in steady-state conditions was investigated in cattle using the pseudo-afferent lymphatic cannulation model...
January 7, 2017: Immunology
https://www.readbyqxmd.com/read/28061513/angiopoietin-2-blockade-promotes-survival-of-corneal-transplants
#15
Liwei Zhang, Guangyu Li, Roberto Sessa, Gyeong Jin Kang, Meng Shi, Shaokui Ge, Anna Jiang Gong, Ying Wen, Sudhakar Chintharlapalli, Lu Chen
Purpose: Corneal transplantation remains the last hope for vision restoration, and lymphangiogenesis (LG) is a primary mediator of transplant rejection. This study was to investigate the specific role of angiopoietin-2 (Ang-2) in transplantation-associated LG and graft rejection. Methods: Orthotopic corneal transplantation was performed between fully mismatched C57BL/6 (donor) and BALB/c (recipient) mice to assess the effects of Ang-2 blockade via neutralizing antibody...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28060028/kinetics-of-angiogenic-responses-in-corneal-transplantation
#16
Takenori Inomata, Alireza Mashaghi, Antonio Di Zazzo, Sang-Mok Lee, Homer Chiang, Reza Dana
PURPOSE: To delineate and compare the kinetics of corneal angiogenesis after high-risk (HR) versus low-risk (LR) corneal transplantation. METHODS: In mice, intrastromal sutures were placed in the recipient graft bed 2 weeks before allogeneic transplantation to induce angiogenesis and amplify the risk of graft rejection. Control (LR) graft recipients did not undergo suture placement, and thus the host bed remained avascular at the time of transplantation. Graft hemangiogenesis and opacity scores were evaluated for 8 weeks by slit-lamp biomicroscopy...
January 4, 2017: Cornea
https://www.readbyqxmd.com/read/28056456/bladder-metastases-from-lung-cancer-clinical-and-pathological-implications-a-systematic-review
#17
Francesca Sanguedolce, Domenico Loizzi, Francesco Sollitto, Maurizio Di Bisceglie, Giuseppe Lucarelli, Giuseppe Carrieri, Pantaleo Bufo, Luigi Cormio
Lung cancer is the tumor with the highest incidence in males worldwide and the most common cause of death from cancer overall; its high mortality is mostly due to its propensity to spread to other organs through lymphatic and blood vessels in spite of proper treatment. Bladder metastases from lung cancer are rare, with only 11 cases having been reported, all in recent years. This review aims to discuss some critical points regarding this uncommon condition, namely: (a) lung and bladder tumors share similar etiologic features; (b) almost all bladder metastases from lung cancer arise from lung adenocarcinomas; (c) cytology and superficial bladder biopsy may be falsely negative, since the neoplastic cells coming through the hematogenous route are typically located in the lamina propria and/or muscularis propria of the bladder wall; and (d) the differential diagnosis with primary bladder adenocarcinoma as well as primary and secondary small-cell carcinomas may be challenging...
January 6, 2017: Oncology
https://www.readbyqxmd.com/read/28031952/life-as-an-early-career-researcher-interview-with-catherine-martel
#18
Catherine Martel
Catherine Martel speaks to Francesca Lake, Managing Commissioning Editor: Catherine Martel obtained her PhD from the Université de Montréal and pursued a postdoctoral fellowship first at Mount Sinai School of Medicine in New York (NY, USA), then at Washington University School of Medicine in St Louis (MO, USA), and obtained the Junior Investigator Award for Women from the Arteriosclerosis, Thrombosis and Vascular Biology council of the American Heart Association. Her postdoctoral work is certainly groundbreaking and brings forward new considerations in the field: she discovered that the lymphatic vessel route, the network that runs in parallel with the blood vessels, is critical for removing cholesterol from multiple tissues, including the aortic wall...
March 2016: Future Science OA
https://www.readbyqxmd.com/read/28028967/angiogenesis-in-cd5-positive-diffuse-large-b-cell-lymphoma-a-morphometric-analysis
#19
Nina Woźnialis, Beata Gierej, Lidia Popławska, Mateusz Ziarkiewicz, Ewa Wolińska, Elżbieta Kulczycka, Bogna Ziarkiewicz-Wróblewska
BACKGROUND: CD5-positive diffuse large B cell lymphoma (DLBCL) is the least frequent immunohistochemical subgroup of DLBCL. The relatively little available data suggests a worse outcome in this population, resulting from a resistance to chemotherapy. OBJECTIVES: The aim was the comparative assessment of angiogenesis in both CD5-positive and CD5-negative DLBCL, as well as in lymphatic tissues without lymphoproliferative diseases. MATERIAL AND METHODS: The analysis included 36 cases of CD5-positive DLBCL (19 females and 17 males) aged 29-87 years (mean age 69), diagnosed and treated in the Maria Sklodowska-Curie Institute and Oncology Center and Medical University of Warsaw in 2002-2013...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28028002/aqueous-outflow-a-continuum-from-trabecular-meshwork-to-episcleral-veins
#20
REVIEW
Teresia Carreon, Elizabeth van der Merwe, Ronald L Fellman, Murray Johnstone, Sanjoy K Bhattacharya
In glaucoma, lowered intraocular pressure (IOP) confers neuroprotection. Elevated IOP characterizes glaucoma and arises from impaired aqueous humor (AH) outflow. Increased resistance in the trabecular meshwork (TM), a filter-like structure essential to regulate AH outflow, may result in the impaired outflow. Flow through the 360° circumference of TM structures may be non-uniform, divided into high and low flow regions, termed as segmental. After flowing through the TM, AH enters Schlemm's canal (SC), which expresses both blood and lymphatic markers; AH then passes into collector channel entrances (CCE) along the SC external well...
December 24, 2016: Progress in Retinal and Eye Research
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