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Lymphatic circulation

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https://www.readbyqxmd.com/read/28099079/lymphangioleiomyomatosis-a-monogenic-model-of-malignancy
#1
Vera P Krymskaya, Francis X McCormack
Lymphangioleiomyomatosis (LAM) is a rare, low-grade, metastasizing neoplasm that arises from an unknown source, spreads via the lymphatics, and targets the lungs. All pulmonary structures become infiltrated with benign-appearing spindle and epithelioid cells (LAM cells) that express smooth-muscle and melanocyte-lineage markers, harbor mTOR-activating mutations in tuberous sclerosis complex (TSC) genes, and recruit abundant stromal cells. Elaboration of lymphangiogenic growth factors and matrix remodeling enzymes by LAM cells enables their access to lymphatic channels and likely drives the cystic lung remodeling that often culminates in respiratory failure...
January 14, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/28097238/quantitative-measurement-of-lymphatic-function-in-mice-by-noninvasive-near-infrared-imaging-of-a-peripheral-vein
#2
Steven T Proulx, Qiaoli Ma, Diana Andina, Jean-Christophe Leroux, Michael Detmar
Optical imaging methods have been developed to measure lymphatic function in skin; however, the lymphatic system of many organs is not accessible to this technology. Since lymphatic transport of macromolecules from any organ proceeds to the blood circulation, we aimed to develop a method that can measure lymphatic function by monitoring the fluorescence in a superficial vein of an interstitially injected tracer. We selected a 40-kDa PEGylated near-infrared dye conjugate, as it showed lymphatic system-specific uptake and extended circulation in blood...
January 12, 2017: JCI Insight
https://www.readbyqxmd.com/read/28087238/lymphocyte-circadian-clocks-control-lymph-node-trafficking-and-adaptive-immune-responses
#3
David Druzd, Olga Matveeva, Louise Ince, Ute Harrison, Wenyan He, Christoph Schmal, Hanspeter Herzel, Anthony H Tsang, Naoto Kawakami, Alexei Leliavski, Olaf Uhl, Ling Yao, Leif Erik Sander, Chien-Sin Chen, Kerstin Kraus, Alba de Juan, Sophia Martina Hergenhan, Marc Ehlers, Berthold Koletzko, Rainer Haas, Werner Solbach, Henrik Oster, Christoph Scheiermann
Lymphocytes circulate through lymph nodes (LN) in search for antigen in what is believed to be a continuous process. Here, we show that lymphocyte migration through lymph nodes and lymph occurred in a non-continuous, circadian manner. Lymphocyte homing to lymph nodes peaked at night onset, with cells leaving the tissue during the day. This resulted in strong oscillations in lymphocyte cellularity in lymph nodes and efferent lymphatic fluid. Using lineage-specific genetic ablation of circadian clock function, we demonstrated this to be dependent on rhythmic expression of promigratory factors on lymphocytes...
January 17, 2017: Immunity
https://www.readbyqxmd.com/read/28081266/human-extravillous-trophoblasts-penetrate-decidual-veins-and-lymphatics-before-remodeling-spiral-arteries-during-early-pregnancy
#4
Nannan He, Liesbeth van Iperen, Danielle de Jong, Karoly Szuhai, Frans M Helmerhorst, Lucette A J van der Westerlaken, Susana M Chuva de Sousa Lopes
In humans, the defective invasion of the maternal endometrium by fetal extravillous trophoblasts (EVTs) can lead to insufficient perfusion of the placenta, resulting in pregnancy complications that can put both mother and baby at risk. To study the invasion of maternal endometrium between (W)5.5-12 weeks of gestation by EVTs, we combined fluorescence in situ hybridization, immunofluorescence and immunohistochemistry to determine the presence of (male) EVTs in the vasculature of the maternal decidua. We observed that interstitial mononuclear EVTs directly entered decidual veins and lymphatics from W5...
2017: PloS One
https://www.readbyqxmd.com/read/28070168/circulating-tumor-microemboli-ctm-and-vimentin-circulating-tumor-cells-ctcs-detected-by-a-size-based-platform-predict-worse-prognosis-in-advanced-colorectal-cancer-patients-during-chemotherapy
#5
Dejun Zhang, Lei Zhao, Pengfei Zhou, Hong Ma, Fang Huang, Min Jin, Xiaomeng Dai, Xiumei Zheng, Shaoyi Huang, Tao Zhang
BACKGROUND: Circulating tumor cells (CTCs) detected in peripheral blood (PB) of cancer patients can be identified as isolated CTCs and circulating tumor microemboli (CTM). This study aimed to evaluate the prognostic value of CTM detection and CTC phenotype in advanced colorectal cancer (CRC) patients during chemotherapy. METHODS: A size-based platform for CTC isolation was applied. PB samples (5 ml) from 98 advanced CRC patients during 2-6 cycles chemotherapy were collected for CTC detection, and CTC count was correlated to patient's clinicopathological characteristics and clinical outcome...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28063176/frequency-and-phenotype-of-nk-cells-and-nk-cell-subsets-in-bovine-lymphoid-compartments-and-blood
#6
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/28052056/genome-wide-in-vivo-screen-identifies-novel-host-regulators-of-metastatic-colonization
#7
Louise van der Weyden, Mark J Arends, Andrew D Campbell, Tobias Bald, Hannah Wardle-Jones, Nicola Griggs, Martin Del Castillo Velasco-Herrera, Thomas Tüting, Owen J Sansom, Natasha A Karp, Simon Clare, Diane Gleeson, Edward Ryder, Antonella Galli, Elizabeth Tuck, Emma L Cambridge, Thierry Voet, Iain C Macaulay, Kim Wong, Sanger Mouse Genetics Project, Sarah Spiegel, Anneliese O Speak, David J Adams
Metastasis is the leading cause of death for cancer patients. This multi-stage process requires tumour cells to survive in the circulation, extravasate at distant sites, then proliferate; it involves contributions from both the tumour cell and tumour microenvironment ('host', which includes stromal cells and the immune system). Studies suggest the early steps of the metastatic process are relatively efficient, with the post-extravasation regulation of tumour growth ('colonization') being critical in determining metastatic outcome...
January 4, 2017: Nature
https://www.readbyqxmd.com/read/28045905/human-leukocytes-kill-brugia-malayi-microfilariae-independently-of-dna-based-extracellular-trap-release
#8
Ciaran J McCoy, Barbara J Reaves, Steeve Giguère, Ruby Coates, Balázs Rada, Adrian J Wolstenholme
BACKGROUND: Wuchereria bancrofti, Brugia malayi and Brugia timori infect over 100 million people worldwide and are the causative agents of lymphatic filariasis. Some parasite carriers are amicrofilaremic whilst others facilitate mosquito-based disease transmission through blood-circulating microfilariae (Mf). Recent findings, obtained largely from animal model systems, suggest that polymorphonuclear leukocytes (PMNs) contribute to parasitic nematode-directed type 2 immune responses. When exposed to certain pathogens PMNs release extracellular traps (NETs) in the form of chromatin loaded with various antimicrobial molecules and proteases...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28042329/genome-wide-lncrna-microarray-profiling-identifies-novel-circulating-lncrnas-for-detection-of-gastric-cancer
#9
Kecheng Zhang, Hongzhi Shi, Hongqing Xi, Xiaosong Wu, Jianxin Cui, Yunhe Gao, Wenquan Liang, Chong Hu, Yi Liu, Jiyang Li, Ning Wang, Bo Wei, Lin Chen
Long non-coding RNAs (lncRNAs) can serve as blood-based biomarkers for cancer detection. To identify novel lncRNA biomarkers for gastric cancer (GC), we conducted, for the first time, genome-wide lncRNA screening analysis in two sets of samples: five paired preoperative and postoperative day 14 plasma samples from GC patients, and tissue samples from tumor and adjacent normal tissues. Candidate tumor-related lncRNAs were then quantitated and evaluated in three independent phases comprising 321 participants...
2017: Theranostics
https://www.readbyqxmd.com/read/28039713/value-of-circulating-tumor-cells-positive-for-thyroid-transcription-factor-1-ttf-1-to-predict-recurrence-and-survival-rates-for-endometrial-carcinoma
#10
Yan Zhang, Xin Qu, Peng Peng Qu
PURPOSE: This study was conducted to analyze the predictive value of circulating tumor cells (CTC) expressing thyroid transcription factor-1 (TTF-1) on the recurrence and survival rates of endometrial carcinoma patients treated with laparoscopic surgery. METHODS: 78 patients were recruited, diagnosed with endometrial carcinoma and measured CTC expressing TTF-1 using flow cytometry in blood and tissues. Then, the patients were distributed into TTF-1-positive (N=42) and -negative (N=36) groups...
November 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28035672/molecular-insights-into-tumour-metastasis-tracing-the-dominant-events
#11
REVIEW
Ke Jin, Tong Li, Hans van Dam, Fangfang Zhou, Long Zhang
Metastasis of malignant cells to vital organs remains the major cause of mortality in many types of cancers. The tumour invasion-metastasis cascade is a stepwise and multistage process whereby tumour cells disseminate from primary sites and spread to colonise distant sites through the systemic haematogenous or lymphatic circulations. The general steps of metastasis may be similar in almost all tumour types, but metastasis to different tissues seems to require distinct sets of regulators and/or an "educated" microenvironment which may facilitate the infiltration and colonisation of tumour cells to specific tissues...
December 30, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/28032534/improved-oral-bioavailability-and-therapeutic-efficacy-of-dabigatran-etexilate-via-soluplus-%C3%A2-tpgs-binary-mixed-micelles-system
#12
Mei Hu, Jinjie Zhang, Rui Ding, Yao Fu, Tao Gong, Zhirong Zhang
The clinical use of dabigatran etexilate (DABE) is limited by its poor absorption and relatively low bioavailability. Our study aimed to explore the potential of a mixed micelle system composed of Soluplus(®) and D-alpha tocopheryl polyethylene glycol 1000 succinate (TPGS) to improve the oral absorption and bioavailability of DBAE. DBAE was first encapsulated into Soluplus/TPGS mixed micelles by a simple thin film hydration method. The DBAE loaded micelles displayed an average size distribution of around 83...
December 29, 2016: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28007060/mechanical-circulatory-support-of-the-fontan-patient
#13
REVIEW
Ronald K Woods, Nancy S Ghanayem, Michael E Mitchell, Steven Kindel, Robert A Niebler
Because of the inadequacies inherent to a circulation supported by a single ventricle, many Fontan patients will experience failure of their circulation. To date, there is no medical regimen that reliably and consistently restores circulatory function in these patients. Because of the shortage of donor organs and the fact that many of these patients present with features that either preclude or render heart transplantation a high risk, there is an intense need to better understand how mechanical circulatory support (MCS) may benefit these patients...
January 2017: Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual
https://www.readbyqxmd.com/read/27989828/where-does-hydrolysis-of-nandrolone-decanoate-occur-in-the-human-body-after-release-from-an-oil-depot
#14
R W Kalicharan, M R Bout, C Oussoren, H Vromans
Long-term therapy of nandrolone (N) is recommended to increase mineral density and muscle strength. Using a parenteral sustained release drug formulation with nandrolone decanoate (ND), therapeutic N levels can be achieved and maintained. Until now, it is unknown if hydrolysis of ND into N occurs in tissue at the injection site or after systemic absorption. Therefore, hydrolysis studies were conducted to investigate the location and rate of ND hydrolysis after its release from the oil depot. ND hydrolysis was studied in porcine tissues, to mimic the human muscular and subcutaneous tissues...
October 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27939451/transcriptional-regulation-of-tissue-resident-lymphocytes
#15
REVIEW
Laura K Mackay, Axel Kallies
Numerous innate and adaptive immune cells reside in non-lymphoid tissues, where they contribute to barrier immunity, tissue homeostasis, and immune regulation. These tissue-resident populations do not recirculate in the blood or lymphatics and adopt a unique phenotype that is distinct from immune cells in the circulation. Tissue residency has been predominantly described for memory CD8(+) T cells [tissue-resident memory T cells (TRM)], but it is now clear that CD4 T cells, regulatory T (Treg) cells, various innate T cells, and innate lymphoid cells (ILCs) can establish residence in non-lymphoid tissues...
December 8, 2016: Trends in Immunology
https://www.readbyqxmd.com/read/27935872/feasibility-of-a-novel-one-stop-iset-device-to-capture-ctcs-and-its-clinical-application
#16
Fangfang Chen, Shuyi Wang, Yuan Fang, Liang Zheng, Xuan Zhi, Boran Cheng, Yuanyuan Chen, Chunxiao Zhang, Dongdong Shi, Haibin Song, Congli Cai, Pengfei Zhou, Bin Xiong
INTRODUCTION: Circulating tumor cells (CTCs) play a crucial role in cancer metastasis. In this study, we introduced a novel isolation method by size of epithelial tumor cells (ISET) device with automatic isolation and staining procedure, named one-stop ISET (osISET) and validated its feasibility to capture CTCs from cancer patients. Moreover, we aim to investigate the correlation between clinicopathologic features and CTCs in colorectal cancer (CRC) in order to explore its clinical application...
December 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27899028/nano-liposome-based-target-toxicity-machine-an-alternative-complementary-approach-in-atopic-diseases
#17
Behzad Mansoori, Ali Mohammadi, Neda Shajari, Sadaf Davudian, Shima Salehi, Behzad Baradaran
Despite using lots of progression in hypersensitivity, it is not yet a cure. Current treatment for allergy focuses on two approaches, including treats only the symptoms of allergy by utilizing drugs and the other is desensitization therapy (immunotherapy), which involves administration of specific allergens. The main obstacle to hypersensitivity permanent treatment is the IgE producing subclass of B-lymphocytes which is the source of IgE- producing in hypersensitive patients. Removal of these lymphocytes causes noticeable reduction in the levels of IgE and allergic responses significantly...
November 29, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27880904/lyve1-marks-the-divergence-of-yolk-sac-definitive-hemogenic-endothelium-from-the-primitive-erythroid-lineage
#18
Lydia K Lee, Yasamine Ghorbanian, Wenyuan Wang, Yanling Wang, Yeon Joo Kim, Irving L Weissman, Matthew A Inlay, Hanna K A Mikkola
The contribution of the different waves and sites of developmental hematopoiesis to fetal and adult blood production remains unclear. Here, we identify lymphatic vessel endothelial hyaluronan receptor-1 (LYVE1) as a marker of yolk sac (YS) endothelium and definitive hematopoietic stem and progenitor cells (HSPCs). Endothelium in mid-gestation YS and vitelline vessels, but not the dorsal aorta and placenta, were labeled by Lyve1-Cre. Most YS HSPCs and erythro-myeloid progenitors were Lyve1-Cre lineage traced, but primitive erythroid cells were not, suggesting that they represent distinct lineages...
November 22, 2016: Cell Reports
https://www.readbyqxmd.com/read/27876997/scope-of-detectability-of-circulating-antigens-of-human-lymphatic-filarial-parasite-wuchereria-bancrofti-with-smaller-amount-of-serum-by-og4c3-assay-its-application-in-lymphatic-filariasis-elimination-programme
#19
K Athisaya Mary, K Krishnamoorthy, S L Hoti
Filarial antigen detection is an appropriate epidemiological indicator for mapping lymphatic filariasis and impact evaluation of filariasis elimination programme in view of low sensitivity of parasite detection. Monoclonal antibody-based Og4C3 immunological test requires 100 µl serum, which is difficult to collect by finger prick method during community based surveys. Hence, we tested lesser volume of serum compared to standard volume of 100 µl to compare its sensitivity and specificity in detecting the circulating filarial antigens...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27837334/mechanism-of-depression-as-a-risk-factor-in-the-development-of-alzheimer-s-disease-the-function-of-aqp4-and-the-glymphatic-system
#20
Maosheng Xia, Li Yang, Guangfeng Sun, Shuang Qi, Baoman Li
BACKGROUND: Many studies have indicated that a history of depression increases the risk of developing Alzheimer's disease (AD); however, the potential pathogenestic mechanism by which depression functions as a high risk factor for AD remains unknown. Recently, a "cerebral lymphatic system" referred to as "glymphatic system" has been demonstrated to be responsible for neuronal extracellular waste protein clearance via a paravascular pathway. However, the function of glymphatic pathway has not been determined in depressive disorders...
November 12, 2016: Psychopharmacology
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