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https://www.readbyqxmd.com/read/29351458/differences-in-l-type-calcium-channel-activity-partially-underlie-the-regional-dichotomy-in-pumping-behavior-by-murine-peripheral-and-visceral-lymphatic-vessels
#1
Scott D Zawieja, Jorge A Castorena-Gonzalez, Joshua Scallan, Michael J Davis
We identified a regional dichotomy in murine lymphatic contractile function with regard to vessel location within either the periphery or visceral cavity. All vessels isolated from peripheral regions; cervical, popliteal, inguinal, axillary, and inter-nodal inguinal axillary (Ing-Ax) developed robust contractions with maximal ejection fractions (EFs) of 50-80% in our ex vivo isobaric myograph experiments. Conversely, vessels isolated from the visceral cavity (mesenteric, TD, and iliac) demonstrated maximal EFs below 15%...
January 5, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29351397/acute-small-intestinal-inflammation-results-in-persistent-lymphatic-alterations
#2
Sonia Rehal, Matthew Stephens, Simon Roizes, Shan Liao, Pierre-Yves von der Weid
Inflammatory bowel disease (IBD) has a complex pathophysiology with limited treatments. Structural and functional changes in the intestinal lymphatic system have been associated with the disease, with increased risk of IBD occurrence linked to a history of acute intestinal injury. To examine the potential role of the lymphatic system in inflammation recurrence, we evaluated morphological and functional changes in mouse mucosal and mesenteric lymphatic vessels, and within the mesenteric lymph nodes during acute ileitis caused by a 7-day treatment with dextran sodium sulfate (DSS)...
December 14, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29350326/oxyresveratrol-prevents-murine-h22-hepatocellular-carcinoma-growth-and-lymph-node-metastasis-via-inhibiting-tumor-angiogenesis-and-lymphangiogenesis
#3
Yuanqi Liu, Wei Ren, Yang Bai, Lihong Wan, Xiaodong Sun, Yin Liu, Wenbi Xiong, Yuan-Yuan Zhang, Liming Zhou
The purpose of this study was to investigate the effects and mechanisms of oxyresveratrol (Oxyres) on hepatocellular carcinoma (HCC) in vitro and in vivo. The MTT and Transwell assays were performed to investigate the effects of Oxyres on cell proliferation and migration of two HCC cell lines, QGY-7701 and SMMC-7721 cells. H22 cells were subcutaneously injected into hind foot pads of 70 male mice to establish a lymph node metastasis model. These mice were randomly divided into seven groups as follows, control group, HCC group, Oxyres 20 mg/kg group, Oxyres 40 mg/kg group, Oxyres 60 mg/kg group, Resveratrol (Res) group, and Adriamycin (ADM) group...
January 19, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29349035/successful-treatment-of-a-patient-with-chyluria-due-to-lymphangioleiomyomatosis-using-sirolimus
#4
Takahiko Sakaue, Masaki Tominaga, Takashi Niizeki, Yoshiaki Zaizen, Ken Matsukuma, Masamichi Koganemaru, Tomoaki Hoshino, Takuji Torimura
Lymphangioleiomyomatosis (LAM) is a rare and progressive neoplastic disease of young woman, characterized by the proliferation of abnormal smooth muscle-like cells (LAM cells) in the lungs and axial lymphatics. A 44-year-old woman was referred to our hospital because pleural effusion was detected during a health checkup. She had chylothorax, chylous ascites, and chyluria, and her computed tomography scan showed a solid tumor in the pelvis. Surgical biopsy was performed; she was diagnosed as having LAM. We could not control the fluid collection and chyluria using standard medical treatments...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29348597/author-correction-short-course-high-dose-rifampicin-achieves-wolbachia-depletion-predictive-of-curative-outcomes-in-preclinical-models-of-lymphatic-filariasis-and-onchocerciasis
#5
Ghaith Aljayyoussi, Hayley E Tyrer, Louise Ford, Hanna Sjoberg, Nicolas Pionnier, David Waterhouse, Jill Davies, Joanne Gamble, Haelly Metuge, Darren A N Cook, Andrew Steven, Raman Sharma, Ana F Guimaraes, Rachel H Clare, Andrew Cassidy, Kelly L Johnston, Laura Myhill, Laura Hayward, Samuel Wanji, Joseph D Turner, Mark J Taylor, Stephen A Ward
A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper.
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29347887/cryo-assisted-resection-en-bloc-and-cryoablation-in-situ-of-primary-breast-cancer-coupled-with-intraoperative-ultrasound-guided-tracer-injection-a-preliminary-clinical-study
#6
Nikolai N Korpan, Kecheng Xu, Philipp Schwarzinger, Masashi Watanabe, Gerhard Breitenecker, Le Pivert Patrick
The aim of the study was to perform cryosurgery on a primary breast tumor, coupled with simultaneous peritumoral and intratumoral tracer injection of a blue dye, to evaluate lymphatic mapping. We explored the ability of our strategy to prevent tumor cells, but not that of injected tracers, to migrate to the lymphovascular drainage during conventional resection of frozen breast malignancies. Seventeen patients aged 51 (14) years (mean [standard deviation]), presenting primary breast cancer with stage I to IV, were randomly selected and treated in The Rudolfinerhaus Private Clinic in Vienna, Austria, and included in this preliminary clinical study...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29346774/mannose-receptor-1-restricts-hiv-particle-release-from-infected-macrophages
#7
Sayaka Sukegawa, Eri Miyagi, Fadila Bouamr, Helena Farkašová, Klaus Strebel
Human mannose receptor 1 (hMRC1) is expressed on the surface of most tissue macrophages, dendritic cells, and select lymphatic or liver endothelial cells. HMRC1 contributes to the binding of HIV-1 to monocyte-derived macrophages (MDMs) and is involved in the endocytic uptake of HIV-1 into these cells. Here, we identify hMRC1 as an antiviral factor that inhibits virus release through a bone marrow stromal antigen 2 (BST-2)-like mechanism. Virions produced in the presence of hMRC1 accumulated in clusters at the cell surface but were fully infectious...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346540/blood-and-lymphatic-vessels-contribute-to-the-impact-of-the-immune-microenvironment-on-clinical-outcome-in-non-small-cell-lung-cancer
#8
Giovanna Armani, Denise Madeddu, Giulia Mazzaschi, Giovanni Bocchialini, Francesco Sogni, Caterina Frati, Bruno Lorusso, Angela Falco, Costanza Annamaria Lagrasta, Stefano Cavalli, Chiara Mangiaracina, Rocchina Vilella, Gabriella Becchi, Letizia Gnetti, Emilia Corradini, Eugenio Quaini, Konrad Urbanek, Matteo Goldoni, Paolo Carbognani, Luca Ampollini, Federico Quaini
OBJECTIVES: Lymphangiogenesis plays a critical role in the immune response, tumour progression and therapy effectiveness. The aim of this study was to determine whether the interplay between the lymphatic and the blood microvasculature, tumour-infiltrating lymphocytes and the programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) immune checkpoint constitutes an immune microenvironment affecting the clinical outcome of patients with non-small-cell lung cancer. METHODS: Samples from 50 squamous cell carcinomas and 42 adenocarcinomas were subjected to immunofluorescence to detect blood and lymphatic vessels...
January 15, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29346129/high-inflammatory-infiltrate-correlates-with-poor-symptomatic-improvement-after-surgical-treatment-for-superior-limbic-keratoconjunctivitis
#9
Pablo Zoroquiain, Debra-Meghan Sanft, Evangelina Esposito, Devinder Cheema, Ana Beatriz Dias, Miguel N Burnier
PURPOSE: Superior limbic keratoconjunctivitis (SLK) is a chronic and recurrent condition of unknown etiology. It is often managed conservatively, but there is a high rate of success with surgical management for severe or recalcitrant cases. The purpose of this article is to describe and analyze clinicopathological features of patients with SLK who underwent surgical treatment and their association with the clinical outcome. METHODS: A total of 22 eyes from 18 patients who underwent surgical SLK management were retrospectively analyzed...
January 17, 2018: Cornea
https://www.readbyqxmd.com/read/29346026/a-scintigraphic-method-for-quantitation-of-lymphatic-function-in-arm-lymphedema
#10
Svend Hvidsten, Navid M Toyserkani, Jens A Sørensen, Poul F Høilund-Carlsen, Jane A Simonsen
BACKGROUND: Lymphoscintigraphy is commonly used to assess breast cancer-related lymphedema. However, a reliable quantitative method that clearly distinguishes normal lymphatic function from lymphedema is desired. We propose a quantitative method based upon the physiological mean transit time (MTT) measure of lymph fluid passing through the arm. METHODS AND RESULTS: Eleven patients, aged 34-68 years, with unilateral arm lymphedema following breast cancer treatment underwent simultaneous bilateral lymphoscintigraphy using intradermal injection of 99mTc-labeled human serum albumin (HSA)...
January 18, 2018: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/29346025/linkage-of-metabolic-defects-to-activated-pik3ca-alleles-in-endothelial-cells-derived-from-lymphatic-malformation
#11
Kathryn Glaser, Peter Dickie, Derek Neilson, Alexander Osborn, Belinda Hsi Dickie
BACKGROUND: Lymphatic endothelial cells (LECs) derived from lymphatic malformations (LMs) bear activated PIK3CA alleles yet display an inflammatory gene expression profile. A basis for the inflammatory phenotype was sought by screening for coexisting somatic mutations. METHODS AND RESULTS: Fourteen independent LEC populations bearing activated PIK3CA alleles were isolated from LM. These were characterized by the expression of growth and inflammatory genes (VEGFC, IL-6, COX-2, IL-8, HO-1, E-SEL) by qRT-PCR...
January 18, 2018: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/29346014/role-of-the-lymphatic-system-in-the-pathogenesis-of-hypertension-in-humans
#12
Angelika Chachaj, Bartosz Puła, Mariusz Chabowski, Jędrzej Grzegrzółka, Ewa Szahidewicz-Krupska, Maciej Karczewski, Dariusz Janczak, Piotr Dzięgiel, Marzenna Podhorska-Okołów, Grzegorz Mazur, Andrzej Gamian, Andrzej Szuba
BACKGROUND: Recent studies, mainly on animal models, have suggested that negatively charged glycosaminoglycans, macrophages, and lymph vessels in the skin interstitium may serve as extrarenal control of sodium balance and blood pressure. The aim of the study was to prove the hypothesis that skin interstitium has a role in the pathogenesis of hypertension in humans. METHODS AND RESULTS: We have examined skin biopsies in 91 patients from the department of surgery who had elective surgery with abdominal skin incision: 43 were hypertensive, 14 had resistant hypertension, and 34 with normal blood pressure as control group (median patients' age in these groups estimated accordingly 64 vs...
January 18, 2018: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/29345152/changes-in-radiotherapy-fractionation-breast-cancer
#13
John Yarnold
Conventional fractionation for half a century has been justified on the basis that 2.0 Gy fractions spare dose-limiting late-responding normal tissues to a greater degree than cancerous tissues. Early indications that breast cancer responds more strongly to fraction size than many other common cancers were followed several decades of investigation, but there is now reliable level I evidence that this is the case. Four randomised trials testing fraction sizes in the range 2.7-3.3 Gy have reported 10-year follow in almost 8,000 patients, and they provide robust estimates of α/β in the range of 3 Gy...
January 18, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29344552/collagen-and-calcium-binding-egf-domains-1-ccbe1-in-cancer-a-new-role-past-lymphatics
#14
EDITORIAL
Aruz Mesci, Stanley K Liu
No abstract text is available yet for this article.
November 2017: Oncoscience
https://www.readbyqxmd.com/read/29344226/analysis-of-survival-and-prognosis-of-298-gastric-adenocarcinoma-patients-with-no-distant-metastasis
#15
Luguang Liu, Hongbo Hao, Lijuan Zhao, Junxia Hu, Baocai Si
This study investigated the survival and prognosis of 298 gastric adenocarcinoma patients with no distant metastasis. For analysis and comparison of the prognosis of patients, a retrospective analysis was performed in 298 patients with perfect clinical data and follow-up data who received the D2 resections for gastric cancer in Shandong Provincial Hospital Affiliated to Shandong University between January, 2005 and January, 2012, and were diagnosed as gastric adenocarcinoma with no distant metastasis in postoperative pathological examination...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344214/association-of-the-rs2071559-t-c-polymorphism-with-lymphatic-metastasis-in-patients-with-nasopharyngeal-carcinoma
#16
Kai Hu, Xiujing Xie, Rensheng Wang, Fang Wu, Yong Zhang
Vascular endothelial growth factor (VEGF) and its receptor, VEGFR2, serve a critical role in angiogenesis and lymphangiogenesis, which are involved in the initiation and progression of malignancies. Specific single nucleotide polymorphisms of VEGF and VEGFR2 have been shown to modulate gene expression and influence malignancy aggressiveness. The aim of the present study was to determine whether the VEGFR2 rs2071559 (T/C) polymorphism is associated with the risk of developing nasopharyngeal carcinoma (NPC) and the aggressiveness of NPC in a southern Chinese population...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344127/mechanisms-of-peritoneal-dissemination-in-gastric-cancer
#17
Feng Sun, Min Feng, Wenxian Guan
Peritoneal dissemination is the most frequent metastatic pattern of gastric cancer, but the mechanisms underlying peritoneal dissemination are yet to be elucidated. Paget's 'seed and soil' hypothesis is recognized as the fundamental theory of metastasis. The 'seeding' theory proposes that the formation of peritoneal dissemination is a multistep process, including detachment from the primary tumour, transmigration and attachment to the distant peritoneum, invasion into subperitoneal tissue and proliferation with blood vascular neogenesis...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343850/mirna-646-mediated-reciprocal-repression-between-hif-1%C3%AE-and-miip-contributes-to-tumorigenesis-of-pancreatic-cancer
#18
Yi Niu, Yan Jin, Shi-Chang Deng, Shi-Jiang Deng, Shuai Zhu, Yang Liu, Xiang Li, Chi He, Ming-Liang Liu, Zhu Zeng, Heng-Yu Chen, Jian-Xin Zhong, Zeng Ye, Chun-You Wang, Gang Zhao
Migration and invasion inhibitory protein (MIIP) is recently identified as an inhibitor in tumor development. However, the regulatory mechanism and biological contributions of MIIP in pancreatic cancer (PC) have been not elucidated. In this study, we demonstrated a negative feedback of MIIP and hypoxia-induced factor-1α (HIF-1α), which was mediated by a hypoxia-induced microRNA. Compared with paracarcinoma tissues, MIIP was downregulated in PC tissues. Overexpression of MIIP significantly impeded the proliferation and invasion of PC cells both in vitro and in mouse xenograft models...
January 18, 2018: Oncogene
https://www.readbyqxmd.com/read/29343625/methicillin-resistant-staphylococcus-aureus-causes-sustained-collecting-lymphatic-vessel-dysfunction
#19
Dennis Jones, Eelco F J Meijer, Cedric Blatter, Shan Liao, Ethel R Pereira, Echoe M Bouta, Keehoon Jung, Shan Min Chin, Peigen Huang, Lance L Munn, Benjamin J Vakoc, Michael Otto, Timothy P Padera
Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of morbidity and mortality worldwide and is a frequent cause of skin and soft tissue infections (SSTIs). Lymphedema-fluid accumulation in tissue caused by impaired lymphatic vessel function-is a strong risk factor for SSTIs. SSTIs also frequently recur in patients and sometimes lead to acquired lymphedema. However, the mechanism of how SSTIs can be both the consequence and the cause of lymphatic vessel dysfunction is not known. Intravital imaging in mice revealed an acute reduction in both lymphatic vessel contractility and lymph flow after localized MRSA infection...
January 17, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29343199/cd204-expressing-tumor-associated-macrophages-are-associated-with-malignant-high-grade-and-hormone-receptor-negative-canine-mammary-gland-tumors
#20
Byung-Joon Seung, Ha-Young Lim, Jong-Il Shin, Hyun-Woo Kim, Seung-Hee Cho, Soo-Hyeon Kim, Jung-Hyang Sur
Tumor-associated macrophages (TAMs) are an important component of leukocyte infiltration in tumors. TAMs can be classified into M1 and M2 phenotypes. In the present study, the expression of CD204, an M2-polarized macrophage receptor, was investigated by immunohistochemistry in the area surrounding TAMs in 101 cases of canine mammary gland tumor (CMT). We examined the relationship between M2-polarized TAMs and malignancy, histological subtype, histological grade, molecular subtype, hormone receptor (HR) status, and clinical obesity indices...
January 1, 2018: Veterinary Pathology
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