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https://www.readbyqxmd.com/read/28739604/s1pr1-on-tumor-associated-macrophages-promotes-lymphangiogenesis-and-metastasis-via-nlrp3-il-1%C3%AE
#1
Benjamin Weichand, Rüdiger Popp, Sarah Dziumbla, Javier Mora, Elisabeth Strack, Eiman Elwakeel, Ann-Christin Frank, Klaus Scholich, Sandra Pierre, Shahzad N Syed, Catherine Olesch, Julia Ringleb, Bilge Ören, Claudia Döring, Rajkumar Savai, Michaela Jung, Andreas von Knethen, Bodo Levkau, Ingrid Fleming, Andreas Weigert, Bernhard Brüne
Metastasis is the primary cause of cancer death. The inflammatory tumor microenvironment contributes to metastasis, for instance, by recruiting blood and lymph vessels. Among tumor-infiltrating immune cells, tumor-associated macrophages (TAMs) take a center stage in promoting both tumor angiogenesis and metastatic spread. We found that genetic deletion of the S1P receptor 1 (S1pr1) alone in CD11b(hi) CD206(+) TAMs infiltrating mouse breast tumors prevents pulmonary metastasis and tumor lymphangiogenesis. Reduced lymphangiogenesis was also observed in the nonrelated methylcholanthrene-induced fibrosarcoma model...
July 24, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28723974/alginate-hydrogels-allow-for-bioactive-and-sustained-release-of-vegf-c-and-vegf-d-for-lymphangiogenic-therapeutic-applications
#2
Kevin T Campbell, Dustin J Hadley, David L Kukis, Eduardo A Silva
Lymphatic dysfunction is associated with the progression of many cardiovascular disorders due to their role in maintaining tissue fluid homeostasis. Promoting new lymphatic vessels (lymphangiogenesis) is a promising strategy to reverse these cardiovascular disorders via restoring lymphatic function. Vascular endothelial growth factor (VEGF) members VEGF-C and VEGF-D are both potent candidates for stimulating lymphangiogenesis, though maintaining spatial and temporal control of these factors represents a challenge to developing efficient therapeutic lymphangiogenic applications...
2017: PloS One
https://www.readbyqxmd.com/read/28722162/cyanidin-suppresses-autophagic-activity-regulating-chondrocyte-hypertrophic-differentiation
#3
Zhen Cao, Song Huang, Ce Dou, Qiang Xiang, Shiwu Dong
Cartilage is a kind of special connective tissue which does not contain neither blood vessels nor lymphatics and nerves. Therefore, the damage in cartilage is difficult to be repaired spontaneously. Constructing tissue engineered cartilage provides a new technique for cartilage repairing. Mesenchymal stem cells (MSCs) possess a unique capability of self-renew and can differentiate into pre-chondrocytes which are frequently applied as seed cells in tissue engineering. However, in regenerated cartilage the chondrocytes derived from MSCs can hardly maintain homeostasis and preferentially present hypertrophic like phenotype...
July 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28718368/remodeling-of-extracellular-matrix-of-the-lamina-propria-in-the-uninvolved-human-rectal-mucosa-10-and-20%C3%A2-cm-away-from-the-malignant-tumor
#4
Sanja Z Despotović, Novica M Milićević, Dragoslav P Milošević, Nebojša Despotović, Predrag Erceg, Petar Svorcan, Udo Schumacher, Sebastian Ullrich, Gordana Mihajlović, Dragan Kalem, Srđan Marković, Ivana M Lalić, Aleksandar J Krmpot, Mihailo D Rabasović, Dejan V Pantelić, Svetlana Z Jovanić, Thomas Rösch, Živana Milićević
In recent years, it has been demonstrated that malignancy arises and advances through the molecular interplay between tumor cells and non-malignant elements of the tumor stroma, that is, fibroblasts and extracellular matrix. However, in contrast to the mounting evidence about the role of tumor stroma in the genesis and progression of the malignant disease, there are very few data regarding the uninvolved stromal tissue in the remote surrounding of the tumor. Using the objective morphometric approach in patients with adenocarcinoma, we demonstrate the remodeling of extracellular matrix of the lamina propria in the uninvolved rectal mucosa 10 and 20 cm away from the neoplasm...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28716943/visualizing-context-dependent-calcium-signaling-in-encephalitogenic-t-cells-in-vivo-by-two-photon-microscopy
#5
Nikolaos I Kyratsous, Isabel J Bauer, Guokun Zhang, Marija Pesic, Ingo Bartholomäus, Marsilius Mues, Ping Fang, Miriam Wörner, Stephanie Everts, Joachim W Ellwart, Joanna M Watt, Barry V L Potter, Reinhard Hohlfeld, Hartmut Wekerle, Naoto Kawakami
In experimental autoimmune encephalitis (EAE), autoimmune T cells are activated in the periphery before they home to the CNS. On their way, the T cells pass through a series of different cellular milieus where they receive signals that instruct them to invade their target tissues. These signals involve interaction with the surrounding stroma cells, in the presence or absence of autoantigens. To portray the serial signaling events, we studied a T-cell-mediated model of EAE combining in vivo two-photon microscopy with two different activation reporters, the FRET-based calcium biosensor Twitch1 and fluorescent NFAT...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28699120/valve-related-modes-of-pump-failure-in-collecting-lymphatics-numerical-and-experimental-investigation
#6
C D Bertram, C Macaskill, M J Davis, J E Moore
Lymph is transported along collecting lymphatic vessels by intrinsic and extrinsic pumping. The walls have muscle of a type intermediate between blood-vascular smooth muscle and myocardium; a contracting segment between two valves (a lymphangion) constitutes a pump. This intrinsic mechanism is investigated ex vivo in isolated, spontaneously contracting, perfused segments subjected to controlled external pressures. The reaction to varying afterload is probed by slowly ramping up the outlet pressure until pumping fails...
July 11, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28671677/effects-of-proton-versus-photon-irradiation-on-lymph-angiogenic-inflammatory-proliferative-and-anti-tumor-immune-responses-in-head-and-neck-squamous-cell-carcinoma
#7
M Lupu-Plesu, A Claren, S Martial, P-D N'Diaye, K Lebrigand, N Pons, D Ambrosetti, I Peyrottes, J Feuillade, J Hérault, M Dufies, J Doyen, G Pagès
The proximity of organs at risk makes the treatment of head and neck squamous cell carcinoma (HNSCC) challenging by standard radiotherapy. The higher precision in tumor targeting of proton (P) therapy could promote it as the treatment of choice for HNSCC. Besides the physical advantage in dose deposition, few is known about the biological impact of P versus photons (X) in this setting. To investigate the comparative biological effects of P versus X radiation in HNSCC cells, we assessed the relative biological effectiveness (RBE), viability, proliferation and mRNA levels for genes involved in (lymph)angiogenesis, inflammation, proliferation and anti-tumor immunity...
July 3, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28671053/expression-of-hypoxia-inducible-factor-1-alpha-and-its-clinical-significance-in-esophageal-carcinoma-a-meta-analysis
#8
Shao Wu Jing, Jun Wang, Qing Xu
Many studies have analyzed the relationship between hypoxia inducible factor 1 alpha expression and its relation to differentiation, lymph node metastasis, and other clinicopathological variables of esophageal carcinoma, but the results are still inconsistent. This meta-analysis was carried out to explore hypoxia inducible factor 1 alpha in esophageal carcinoma and its correlation with clinicopathological features and prognosis, in order to provide comprehensive reference for clinic. A total of 18 studies including 1566 patients with esophageal squamous cell carcinoma were enrolled...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28669039/blockade-of-mmp-2-and-mmp-9-inhibits-corneal-lymphangiogenesis
#9
Hai-Tao Du, Ling-Ling Du, Xian-Ling Tang, Hong-Yan Ge, Ping Liu
PURPOSE: To investigate the roles of a selective MMP-2 and -9 inhibitor (SB-3CT) in corneal inflammatory lymphangiogenesis. METHODS: The expression of MMP-2 and -9 in the cornea after suture inplacement, treated with SB-3CT or negative control, was detected by real-time polymerase chain reaction (PCR). Inflammatory corneal neovascularization (NV) was induced by corneal suture placement. Mice were treated with SB-3CT eye drops (twice daily for 1 week, 5 μL per drop; 50, 100, or 200 μM)...
July 1, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28634950/microfluidic-based-generation-of-3d-collagen-spheres-to-investigate-multicellular-spheroid-invasion
#10
Fabien Bertillot, Youmna Attieh, Morgan Delarue, Basile G Gurchenkov, Stephanie Descroix, Danijela Matic Vignjevic, Davide Ferraro
During tumor progression, cancer cells acquire the ability to escape the primary tumor and invade adjacent tissues. They migrate through the stroma to reach blood or lymphatics vessels that will allow them to disseminate throughout the body and form metastasis at distant organs. To assay invasion capacity of cells in vitro, multicellular spheroids of cancer cells, mimicking primary tumor, are commonly embedded in collagen I extracellular matrix, which mimics the stroma. However, due to their higher density, spheroids tend to sink at the bottom of the collagen droplets, resulting in the spreading of the cells on two dimensions...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28614587/scholars-and-scientists-in-the-history-of-the-lymphatic-system
#11
REVIEW
Gianfranco Natale, Guido Bocci, Domenico Ribatti
The discovery of the lymphatic system has a long and fascinating history. The interest in anatomy and physiology of this system paralleled that of the blood cardiocirculatory system and has been maybe obscured by the latter. Paradoxically, if the closed blood system appeared open in Galen's anatomy and physiology, and took a very long time to be correctly described in terms of pulmonary and general circulation by ibn Al-Nafis/Michael Servetus/Realdo Colombo and William Harvey, respectively, the open lymphatic system was incorrectly described as a closed circuit connected with arteries and veins...
June 14, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28605388/2d-and-3d-matrices-to-study-linear-invadosome-formation-and-activity
#12
Julie Di Martino, Elodie Henriet, Zakaria Ezzoukhry, Chandrani Mondal, Jose Javier Bravo-Cordero, Violaine Moreau, Frederic Saltel
Cell adhesion, migration, and invasion are involved in many physiological and pathological processes. For example, during metastasis formation, tumor cells have to cross anatomical barriers to invade and migrate through the surrounding tissue in order to reach blood or lymphatic vessels. This requires the interaction between cells and the extracellular matrix (ECM). At the cellular level, many cells, including the majority of cancer cells, are able to form invadosomes, which are F-actin-based structures capable of degrading ECM...
June 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28603028/targeting-of-p32-in-peritoneal-carcinomatosis-with-intraperitoneal-lintt1-peptide-guided-pro-apoptotic-nanoparticles
#13
Hedi Hunt, Lorena Simón-Gracia, Allan Tobi, Venkata Ramana Kotamraju, Shweta Sharma, Mait Nigul, Kazuki N Sugahara, Erkki Ruoslahti, Tambet Teesalu
Gastrointestinal and gynecological malignancies disseminate in the peritoneal cavity - a condition known as peritoneal carcinomatosis (PC). Intraperitoneal (IP) administration can be used to improve therapeutic index of anticancer drugs used for PC treatment. Activity of IP anticancer drugs can be further potentiated by encapsulation in nanocarriers and/or affinity targeting with tumor-specific affinity ligands, such as tumor homing peptides. Here we evaluated a novel tumor penetrating peptide, linTT1 (AKRGARSTA), as a PC targeting ligand for nanoparticles...
June 8, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28598999/lymphatic-endothelial-progenitors-originate-from-plastic-myeloid-cells-activated-by-toll-like-receptor-4
#14
Lisa D Volk-Draper, Kelly L Hall, Andrew C Wilber, Sophia Ran
BACKGROUND: Myeloid-derived lymphatic endothelial cells (M-LECP) are induced by inflammation and play an important role in adult lymphangiogenesis. However, the mechanisms driving M-LECP differentiation are currently unclear. We previously showed that activation of Toll-like receptor-4 (TLR4) induces myeloid-lymphatic transition (MLT) of immortalized mouse myeloid cells. Here the goals were to assess the potential of different TLR4 ligands to induce pro-lymphatic reprogramming in human and mouse primary myeloid cells and to identify transcriptional changes regulating this process...
2017: PloS One
https://www.readbyqxmd.com/read/28589086/lymph-node-metastases-in-papillary-and-medullary-thyroid-carcinoma-are-independent-of-intratumoral-lymphatic-vessel-density
#15
Filipe Pereira, Sofia S Pereira, Marta Mesquita, Tiago Morais, Madalena M Costa, Pedro Quelhas, Carlos Lopes, Mariana P Monteiro, Valeriano Leite
BACKGROUND: Blood and lymph vessel invasion are well-recognized markers of tumor aggressiveness, as these are the routes that lead to metastases. Thyroid tumors, depending on the histological variant, tend to have distinctive biological behaviors and use different vascular routes to metastasize, yet the mechanisms underlying the metastatic process are still poorly understood. OBJECTIVES: The aim of this study was to assess how the lymph vessel density (LVD) in different histological types of thyroid tumors, and in their surrounding tissue, correlate with the presence of lymph node metastases (LNM) and tumor pathological features...
April 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/28586719/a-heparin-conjugate-lhbisd4-inhibits-lymphangiogenesis-and-attenuates-lymph-node-metastasis-by-blocking-vegf-c-signaling-pathway
#16
Jeong Uk Choi, Seung Woo Chung, Taslim A Al-Hilal, Farzana Alam, Jooho Park, Foyez Mahmud, Jee-Heon Jeong, Sang Yoon Kim, Youngro Byun
Clinical studies have found that the incidence of cancer metastasis through the lymphatic vessels are 3-5 times higher than that through the blood vessels. These findings suggest the potency of anti-lymphangiogenic therapy in reducing the incidence of cancer metastasis. Previously, we reported LHbisD4, which is the conjugate of low molecular weight heparin (LMWH) and four bis-deoxycholates as a potent anti-angiogenic drug with less toxicity and orally active property. Here, we show that LHbisD4 could also suppress the formation of new lymphatic vessels and attenuate the incidence of metastasis by blocking VEGF-C signaling pathway...
September 2017: Biomaterials
https://www.readbyqxmd.com/read/28560672/detection-and-enumeration-of-circulating-tumor-cells-with-invasive-phenotype
#17
Haizhen Wang, Xiangwei Wu
Circulating tumor cells (CTCs) disseminate from solid primary cancers into the peripheral blood and lymphatic vessels and can lead to metastatic tumor development; thus, CTC assays are an important clinical tool for monitoring progression and evaluating prognosis in cancer. However, CTCs are limited in number and heterogeneous in their biological and physical properties, making their detection, isolation, and enumeration a major challenge. To overcome these difficulties, novel techniques have been developed to detect and enumerate CTCs with an invasive phenotype...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551814/macrophage-derived-interleukin-1beta-promotes-human-breast-cancer-cell-migration-and-lymphatic-adhesion-in-vitro
#18
Sarah J Storr, Sabreena Safuan, Narmeen Ahmad, Mohammed El-Refaee, Andrew M Jackson, Stewart G Martin
Lymphovascular invasion (LVI), encompassing blood and lymphatic vessel invasion, is an important event in tumourigenesis. Macrophages within the tumour microenvironment are linked to the presence of LVI and angiogenesis. This study investigates the role of macrophage-derived, caspase-1-dependent interleukin-1beta (IL-1β) in an in vitro model of LVI. IL-1β significantly augmented the adhesion and transmigration of breast cancer cell lines MCF7 and MDA-MB-231 across endothelial cell barriers. MDA-MB-231 and MCF7 showed a higher percentage of adhesion to lymphatic endothelial cells than blood endothelial cells following endothelial cell IL-1β stimulation (P < 0...
May 27, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28537573/vascular-heterogeneity-and-specialization-in-development-and-disease
#19
REVIEW
Michael Potente, Taija Mäkinen
Blood and lymphatic vessels pervade almost all body tissues and have numerous essential roles in physiology and disease. The inner lining of these networks is formed by a single layer of endothelial cells, which is specialized according to the needs of the tissue that it supplies. Whereas the general mechanisms of blood and lymphatic vessel development are being defined with increasing molecular precision, studies of the processes of endothelial specialization remain mostly descriptive. Recent insights from genetic animal models illuminate how endothelial cells interact with each other and with their tissue environment, providing paradigms for vessel type- and organ-specific endothelial differentiation...
August 2017: Nature Reviews. Molecular Cell Biology
https://www.readbyqxmd.com/read/28530642/rasa1-regulates-the-function-of-lymphatic-vessel-valves-in-mice
#20
Philip E Lapinski, Beth A Lubeck, Di Chen, Abbas Doosti, Scott D Zawieja, Michael J Davis, Philip D King
Capillary malformation-arteriovenous malformation (CM-AVM) is a blood and lymphatic vessel (LV) disorder that is caused by inherited inactivating mutations of the RASA1 gene, which encodes p120 RasGAP (RASA1), a negative regulator of the Ras small GTP-binding protein. How RASA1 mutations lead to the LV leakage defects that occur in CM-AVM is not understood. Here, we report that disruption of the Rasa1 gene in adult mice resulted in loss of LV endothelial cells (LECs) specifically from the leaflets of intraluminal valves in collecting LVs...
June 30, 2017: Journal of Clinical Investigation
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