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Lymphatic circulation

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https://www.readbyqxmd.com/read/29778674/innate-effector-cells-in-angiogenesis-and-lymphangiogenesis
#1
REVIEW
Gilda Varricchi, Stefania Loffredo, Maria Rosaria Galdiero, Giancarlo Marone, Leonardo Cristinziano, Francescopaolo Granata, Gianni Marone
Angiogenesis and lymphangiogenesis are distinct and complex processes requiring a finely tuned balance between stimulatory and inhibitory signals. During adulthood, angiogenesis and lymphangiogenesis are activated at sites of tumor growth, tissue injury and remodeling, and chronic inflammation. Vascular endothelial growth factors (VEGFs), angiopoietin (ANGPTs) and a multitude of additional signaling molecules play distinct roles in the modulation of angiogenesis/lymphangiogenesis. VEGFs and ANGPTs activate specific tyrosine kinase receptor (e...
May 17, 2018: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29720217/chiluria-in-a-lymphatic-filariasis-endemic-area
#2
Paulo Sérgio Ramos de Araújo, Valter Romão de Souza Junior, Anderson de Souza, Luciana de Barros Correia Fontes, Eduardo Brandao, Abraham Rocha
OBJECTIVE: To establish clinical and laboratory data of individuals presenting chyluria in endemic areas. RESULTS: 75 individuals were studied. The majority were females with an average age of 45 years residing in the Metropolitan Region of Recife. The mean time between the beginning of the presentation of chyluria and the first care service in the Serviço de Referencia Nacional em Filarioses was approximately 5 years. The most frequent urinalysis changes were hematuria (27...
May 2, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29717639/streptococcus-equi-subspecies-zooepidemicus-septicemia-in-alpacas-three-cases-and-review-of-the-literature
#3
Juan M Corpa, Francisco Carvallo, Mark L Anderson, Akinyi C Nyaoke, Janet D Moore, Francisco A Uzal
Streptococcus equi subspecies zooepidemicus septicemia of alpacas and llamas, also called alpaca fever, is characterized clinically by fever, depression, recumbency, and death, and pathologically by polyserositis. Although a few natural and experimental cases of the disease have been reported, very little information about the pathology of spontaneous cases has been published. We present a detailed gross and microscopic description of 3 spontaneous cases of alpaca fever and review the literature on this condition...
April 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29709778/electrochemical-immunosensor-for-differential-diagnostic-of-wuchereria-bancrofti-using-a-synthetic-peptide
#4
Isis C Prado, Verônica G Mendes, André L A Souza, Rosa F Dutra, Salvatore G De-Simone
Lymphatic filariasis (LF) is a neglected tropical disease transmitted by mosquitoes and the second cause of permanent disability leading to a significant morbidity and mortality rate. Previously, we have identified epitopes of the filarial abundant larval transcript-2 (ALT-2) protein using a microarray mapping. In this study, one of the epitopes (Wb/ALT2-A5) was used to construct an electrochemical immunosensor. Electrochemical technique of cyclic voltammetry was performed for detecting the signal generated by the interaction between the (Wb/ALT2-A5) peptide and circulating antibodies of serum human samples...
April 22, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29709702/tumor-released-exosomal-circular-rna-pde8a-promotes-invasive-growth-via-the-mir-338-macc1-met-pathway-in-pancreatic-cancer
#5
Zhonghu Li, Wu Yanfang, Jie Li, Peng Jiang, Tao Peng, Kai Chen, Xin Zhao, Yujun Zhang, Ping Zhen, Jin Zhu, Xiaowu Li
Circular RNA (circ-RNA) and exosomes have recently been shown to play important roles in different tumors. However, the functions and regulatory mechanisms of exosomal circ-RNA in pancreatic ductal adenocarcinoma (PDAC) tumor progression remain unclear. Here, we identified a circular RNA (circ-PDE8A) from liver-metastatic PDAC cells by microarray analysis, detected its expression levels in clinical tissues and found that high circ-PDE8A expression was correlated with lymphatic invasion, TNM stage and a poor survival rate of PDAC patients...
April 27, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29684516/reconsideration-of-neurogenic-pulmonary-oedema-as-a-source-of-metastatic-cerebral-abscess-following-subarachnoid-hemorrhages-a-preliminary-study
#6
Ahmet Gökyar, Mehmet D Aydın, Sevilay Özmen, Elif Demirci, Abdullah H Marangoz, Enis Kuruoğlu, Cengiz Çokluk
BACKGROUND: Subarachnoid hemorrhage (SAH) may be a cause of neurogenic pulmonary edema (NPE). It is well known that lymphatic fluid draining by thoracic duct to lungs consists of many dangerous metabolites, degraded tissue particles and microbiological pathogens. However, there is no enough study which investigates if NPE cause septicemia or not. In this study, we retrospectively examined our experimental materials whether there is a meaningful relationship between the NPE and cerebral abscess formation...
April 20, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29679053/pregnancy-associated-diamine-oxidase-originates-from-extravillous-trophoblasts-and-is-decreased-in-early-onset-preeclampsia
#7
Philipp Velicky, Karin Windsperger, Karin Petroczi, Sophie Pils, Birgit Reiter, Tamara Weiss, Sigrid Vondra, Robin Ristl, Sabine Dekan, Christian Fiala, David E Cantonwine, Thomas F McElrath, Bernd Jilma, Martin Knöfler, Thomas Boehm, Jürgen Pollheimer
Human extravillous trophoblast (EVT) invasion of the pregnant uterus constitutes a pivotal event for the establishment of the maternal-fetal interface. Compromised EVT function manifesting in inadequate arterial remodeling is associated with the severe pregnancy disorder early-onset preeclampsia (eoPE). Recent studies suggest that EVTs invade the entire uterine vasculature including arteries, veins and lymphatics in the first trimester of pregnancy. We therefore hypothesized that EVT-derived factors accumulate in the circulation of pregnant women early in gestation and may serve to predict eoPE...
April 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29660692/aggressive-phenotype-of-cells-disseminated-via-hematogenous-and-lymphatic-route-in-breast-cancer-patients
#8
Aleksandra Markiewicz, Anna Nagel, Jolanta Szade, Hanna Majewska, Jaroslaw Skokowski, Barbara Seroczynska, Tomasz Stokowy, Marzena Welnicka-Jaskiewicz, Anna J Zaczek
Intratumoral heterogeneity of breast cancer remains a major challenge in successful treatment. Failure of cancer therapies can also be accredited to inability to systemically eradicate cancer stem cells (CSCs). Recent evidence points to the role of epithelial-mesenchymal transition (EMT) in expanding the pool of tumor cells with CSCs features. Thus, we assessed expression level as well as heterogeneity of CSCs markers in primary tumors (PT), lymph node metastasis (LNM), and circulating tumor cells (CTCs)-enriched blood fractions in order to correlate them with signs of EMT activation as well as clinicopathological data of breast cancer patients...
April 13, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29623009/multifunctional-biomedical-imaging-in-physiological-and-pathological-conditions-using-a-nir-ii-probe
#9
Kangquan Shou, Chunrong Qu, Yao Sun, Hao Chen, Si Chen, Lei Zhang, Haibo Xu, Xuechuan Hong, Aixi Yu, Zhen Cheng
Compared with imaging in the visible (400 - 650 nm) and near-infrared window I (NIR-I, 650 - 900 nm) regions, imaging in near-infrared window II (NIR-II, 1,000-1,700 nm) is a highly promising in vivo imaging modality with improved resolution and deeper tissue penetration. In this work, a small molecule NIR-II dye,5,5'-(1H,5H-benzo[1,2-c:4,5-c'] bis[1,2,5]thiadiazole)-4,8-diyl)bis(N,N-bis(4-(3-((tert-butyldimethylsilyl)oxy)propyl)phenyl) thiophen-2-amine), has been successfully encapsulated into phospholipid vesicles to prepare a probe CQS1000...
June 20, 2017: Advanced Functional Materials
https://www.readbyqxmd.com/read/29610928/brain-drains-new-insights-into-brain-clearance-pathways-from-lymphatic-biology
#10
REVIEW
Neil I Bower, Benjamin M Hogan
The lymphatic vasculature act as the drainage system for most of our tissues and organs, clearing interstitial fluid and waste and returning them to the blood circulation. This is not the case for the central nervous system (CNS), which is devoid of parenchymal lymphatic vessels. Nevertheless, the brain is responsible for 25% of the body's metabolism and only compromises 2% of the body's mass. This high metabolic load requires an efficient system to remove waste products and maintain homeostasis. Well-described mechanisms of waste clearance include phagocytic immune cell functions as well as perivascular fluid flow; however, the need for active drainage of waste from the brain is becoming increasingly appreciated...
April 2, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29610456/potential-of-quantitative-sept9-and-shox2-methylation-in-plasmatic-circulating-cell-free-dna-as-auxiliary-staging-parameter-in-colorectal-cancer-a-prospective-observational-cohort-study
#11
Julia Bergheim, Alexander Semaan, Heidrun Gevensleben, Susanne Groening, Andreas Knoblich, Jörn Dietrich, Julia Weber, Jörg C Kalff, Friedrich Bootz, Glen Kristiansen, Dimo Dietrich
BACKGROUND: Septin 9 (SEPT9) and short stature homeobox 2 (SHOX2) methylation in circulating cell-free DNA (ccfDNA) are powerful biomarkers for colorectal cancer (CRC) screening, as well as head and neck squamous cell carcinoma staging and monitoring. In the present study, we investigated SEPT9 and SHOX2 ccfDNA methylation as auxiliary pre and post-therapeutic staging parameters in CRC patients. METHODS: ccfDNA methylation was quantified in 184 prospectively enrolled patients prior to and 3-10 days after surgery, and biomarker levels were associated with clinico-pathological parameters...
April 3, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29579038/results-of-a-confirmatory-mapping-tool-for-lymphatic-filariasis-endemicity-classification-in-areas-where-transmission-was-uncertain-in-ethiopia
#12
Heven Sime, Katherine M Gass, Sindew Mekasha, Ashenafi Assefa, Adugna Woyessa, Oumer Shafi, Kadu Meribo, Biruck Kebede, Kisito Ogoussan, Sonia Pelletreau, Moses J Bockarie, Amha Kebede, Maria P Rebollo
BACKGROUND: The goal of the global lymphatic filariasis (LF) program is to eliminate the disease as a public health problem by the year 2020. The WHO mapping protocol that is used to identify endemic areas in need of mass drug administration (MDA) uses convenience-based sampling. This rapid mapping has allowed the global program to dramatically scale up treatment, but as the program approaches its elimination goal, it is important to ensure that all endemic areas have been identified and have received MDA...
March 26, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29569811/a-novel-podoplanin-gfpcre-mouse-strain-for-gene-deletion-in-lymphatic-endothelial-cells
#13
Hyea Jin Gil, Wanshu Ma, Guillermo Oliver
The lymphatic vascular system is a one-direction network of thin-walled capillaries and larger vessels covered by a continuous layer of endothelial cells responsible for maintaining fluid homeostasis. Some of the main functions of the lymphatic vasculature are to drain fluid from the extracellular spaces and return it back to the blood circulation, lipid absorption from the intestinal tract, and transport of immune cells to lymphoid organs. A number of genes controlling the development of the mammalian lymphatic vasculature have been identified in the last few years, and their functional roles started to be characterized using gene inactivation approaches in mice...
March 23, 2018: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/29567714/lymph-node-blood-vessels-provide-exit-routes-for-metastatic-tumor-cell-dissemination-in-mice
#14
M Brown, F P Assen, A Leithner, J Abe, H Schachner, G Asfour, Z Bago-Horvath, J V Stein, P Uhrin, M Sixt, D Kerjaschki
During metastasis, malignant cells escape the primary tumor, intravasate lymphatic vessels, and reach draining sentinel lymph nodes before they colonize distant organs via the blood circulation. Although lymph node metastasis in cancer patients correlates with poor prognosis, evidence is lacking as to whether and how tumor cells enter the bloodstream via lymph nodes. To investigate this question, we delivered carcinoma cells into the lymph nodes of mice by microinfusing the cells into afferent lymphatic vessels...
March 23, 2018: Science
https://www.readbyqxmd.com/read/29556022/mobilization-of-hematopoietic-stem-cells-as-a-result-of-innate-immunity-mediated-sterile-inflammation-in-the-bone-marrow-microenvironment-the-involvement-of-extracellular-nucleotides-and-purinergic-signaling
#15
REVIEW
Mariusz Z Ratajczak, Mateusz Adamiak, Monika Plonka, Ahmed Abdel-Latif, Janina Ratajczak
Hematopoietic stem/progenitor cells (HSPCs) circulate in peripheral blood (PB) under normal conditions and their number increases in response to stress, inflammation, tissue/organ injury, and may increase up to 100-fold after administration of mobilization-inducing drugs. Mounting evidence suggests that mobilizing agent-induced mobilization of HSPCs from bone marrow into PB is a result of innate immunity-mediated sterile inflammation in the bone marrow (BM) microenvironment. A critical initiating role in this process is played by tissue/organ injury-mediated or pharmacologically induced release from bone marrow-residing granulocytes and monocytes of (i) danger-associated molecular patterns (DAMPs), (ii) reactive oxygen species (ROS), and (iii) proteolytic and lipolytic enzymes...
March 5, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29551158/the-lymphatic-fluid
#16
Laura Santambrogio
This review will highlight our current understanding of the formation, circulation, and immunological role of lymphatic fluid. The formation of the extracellular fluid depends on the net balance between the hydrostatic and osmotic pressure gradients effective in the capillary beds. Lymph originates from the extracellular fluid and its composition combines the ultrafiltrated plasma proteins with the proteome generated by the metabolic activities of each parenchymal tissue. Several analyses have indicated how the lymph composition reflects the organs' physiological and pathological states...
2018: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/29550364/mir-126-is-a-conserved-modulator-of-lymphatic-development
#17
Zacharias Kontarakis, Andrea Rossi, Sophie Ramas, Michael T Dellinger, Didier Y R Stainier
Organ homeostasis relies upon cellular and molecular processes that restore tissue structure and function in a timely fashion. Lymphatic vessels help maintain fluid equilibrium by returning interstitial fluid that evades venous uptake back to the circulation. Despite its important role in tissue homeostasis, cancer metastasis, and close developmental origins with the blood vasculature, the number of molecular players known to control lymphatic system development is relatively low. Here we show, using genetic approaches in zebrafish and mice, that the endothelial specific microRNA mir-126, previously implicated in vascular integrity, regulates lymphatic development...
March 14, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29539267/circulating-tumor-cells-diagnostic-and-therapeutic-applications
#18
Eric Lin, Thong Cao, Sunitha Nagrath, Michael R King
Metastasis contributes to poor prognosis in many types of cancer and is the leading cause of cancer-related deaths. Tumor cells metastasize to distant sites via the circulatory and lymphatic systems. In this review, we discuss the potential of circulating tumor cells for diagnosis and describe the experimental therapeutics that aim to target these disseminating cancer cells. We discuss the advantages and limitations of such strategies and how they may lead to the development of the next generation of antimetastasis treatments...
March 14, 2018: Annual Review of Biomedical Engineering
https://www.readbyqxmd.com/read/29522520/comparison-of-antigen-and-antibody-responses-in-repeat-lymphatic-filariasis-transmission-assessment-surveys-in-american-samoa
#19
Kimberly Y Won, Keri Robinson, Katy L Hamlin, Joseph Tufa, Margaret Seespesara, Ryan E Wiegand, Katherine Gass, Joseph Kubofcik, Thomas B Nutman, Patrick J Lammie, Saipale Fuimaono
BACKGROUND: Current WHO recommendations for lymphatic filariasis (LF) surveillance advise programs to implement activities to monitor for new foci of transmission after stopping mass drug administration (MDA). A current need in the global effort to eliminate LF is to standardize diagnostic tools and surveillance activities beyond the recommended transmission assessment survey (TAS). METHODOLOGY: TAS was first conducted in American Samoa in 2011 (TAS 1) and a repeat TAS was carried out in 2015 (TAS 2)...
March 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29516012/circulating-serum-level-of-visfatin-in-patients-with-endometrial-cancer
#20
Aneta Cymbaluk-Płoska, Anita Chudecka-Głaz, Ewa Pius-Sadowska, Agnieszka Sompolska-Rzechuła, Bogusław Machaliński, Janusz Menkiszak
Obesity is a well-known factor that leads to many diseases including endometrial cancer. The adipose tissue is a heterogeneous organ of internal secretion. Visfatin is a newly discovered protein produced by fat tissues. The purpose of this work was to evaluate serum level concentrations of visfatin in patients with endometrial cancer based on clinical progression and histopathological tumor differentiation. The diagnostic capabilities of visfatin protein in high differentiation (FIGO III and IV) from a lower (FIGO I and II) clinical stage and prognostic degree of cell differentiation (G1 versus G2, G2 versus G3) on the basis of the analysis of the area under the ROC curve are as follows: 0...
2018: BioMed Research International
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