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https://www.readbyqxmd.com/read/29346716/neuropeptide-af-induces-piecemeal-degranulation-in-murine-mucosal-mast-cells-a-new-mediator-in-neuro-immune-communication-in-the-intestinal-lamina-propria
#1
Nada Abdellah, Samuel Van Remoortel, Omnia Mohey-Elsaeed, Mohamed-Nabil Mostafa, Yasser A Ahmed, Jean-Pierre Timmermans, Roeland Buckinx
Neuropeptides AF (NPAF), FF (NPFF) and SF (NPSF) are RFamide neuropeptides known to be widely expressed in the mammalian central nervous system, where they fulfill a wide range of functions with pain modulation being the most prominent one. Recent evidence indicates that RFamides act as mediators in mast cell-sensory nerve communications related to allergic disease. Previous work by our group has shown that the expression levels of some members of the Mas-related gene receptor (Mrgpr) family in both enteric neurons and mucosal mast cells change during intestinal inflammation...
January 18, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29346536/residual-carcinoma-cells-after-chemoradiotherapy-for-esophageal-squamous-cell-carcinoma-patients-striving-toward-appropriate-judgment-of-biopsy
#2
F Fujishima, Y Taniyama, Y Nakamura, H Okamoto, Y Ozawa, K Ito, H Ishida, T Konno-Kumagai, A Kasajima, S Taniuchi, M Watanabe, T Kamei, H Sasano
In esophageal squamous cell carcinoma (ESCC) patients who are treated with chemoradiotherapy (CRT), identification of the presence or absence of residual or recurrent carcinoma is usually pivotal in their clinical management. In addition, the extent of carcinoma invasion into the esophageal wall could determine the clinical outcome of these patients following CRT. Therefore, in this study, we evaluated the response to CRT both macroscopically and histologically in a consecutive series of 42 ESCC patients receiving neoadjuvant chemoradiotherapy following curative esophageal resection at Tohoku University Hospital between August 2011 and December 2012...
January 13, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29346347/cd103-cd11b-mucosal-classical-dendritic-cells-initiate-long-term-switched-antibody-responses-to-flagellin
#3
A Flores-Langarica, K Müller Luda, E K Persson, C N Cook, S Bobat, J L Marshall, M W Dahlgren, K Hägerbrand, K M Toellner, M D Goodall, D R Withers, I R Henderson, B Johansson Lindbom, A F Cunningham, W W Agace
Antibody responses induced at mucosal and nonmucosal sites demonstrate a significant level of autonomy. Here, we demonstrate a key role for mucosal interferon regulatory factor-4 (IRF4)-dependent CD103+CD11b+ (DP), classical dendritic cells (cDCs) in the induction of T-dependent immunoglobulin G (IgG) and immunoglobulin A (IgA) responses in the mesenteric lymph node (MLN) following systemic immunization with soluble flagellin (sFliC). In contrast, IRF8-dependent CD103+CD11b- (SP) are not required for these responses...
December 20, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29344858/laser-capture-microdissection-as-a-tool-to-study-the-mucosal-immune-response-in-celiac-disease
#4
Giuseppe Iacomino, Vera Rotondi Aufiero, Pasquale Marena, Antonella Venezia, Riccardo Troncone, Salvatore Auricchio, Giuseppe Mazzarella
Laser capture microdissection (LCM) is a powerful tool for selection and isolation of single cells or compartments from complex primary tissues to perform molecular analyses. Celiac disease is a genetic autoimmune disorder where the ingestion of gluten leads to damage in the small intestine. Increased intraepithelial lymphocytes and the presence of the lamina propria inflammatory infiltrate of the duodenal mucosa is a common part of the disease. These cells promote inflammatory processes through the release of cytokines...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29343878/cxcl14-like-immunoreactivity-exists-in-somatostatin-containing-endocrine-cells-and-in-the-lamina-propria-and-submucosal-somatostatinergic-nervous-system-of-mouse-alimentary-tract
#5
Hirohumi Suzuki, Kentaro Yamada, Yasuhiro Matsuda, Minoru Onozuka, Toshiharu Yamamoto
In the present study, we investigated the distribution of CXCL14 immunoreactive endocrine cells and neurons in mouse alimentary tract by immunohistochemistry. CXCL14 immunoreactive endocrine cells were found as closed-type cells in the stomach and open-type cells in the small intestine. The immunostaining of these endocrine cells corresponded with that of the somatostatin-containing endocrine cells. Only a few CXCL14 immunoreactive endocrine cells were seen in the large intestine. CXCL14 immunoreactive fibers were observed in the muscular layer from the stomach to the rectum with most abundance in the rectum...
December 26, 2017: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/29343501/sequential-bmp7-tgf-%C3%AE-1-signaling-and-microbiota-instruct-mucosal-langerhans-cell-differentiation
#6
Tal Capucha, Noam Koren, Maria Nassar, Oded Heyman, Tsipora Nir, Maayan Levy, Gili Zilberman-Schapira, Katya Zelentova, Luba Eli-Berchoer, Martin Zenke, Thomas Hieronymus, Asaf Wilensky, Herve Bercovier, Eran Elinav, Björn E Clausen, Avi-Hai Hovav
Mucosal Langerhans cells (LCs) originate from pre-dendritic cells and monocytes. However, the mechanisms involved in their in situ development remain unclear. Here, we demonstrate that the differentiation of murine mucosal LCs is a two-step process. In the lamina propria, signaling via BMP7-ALK3 promotes translocation of LC precursors to the epithelium. Within the epithelium, TGF-β1 finalizes LC differentiation, and ALK5 is crucial to this process. Moreover, the local microbiota has a major impact on the development of mucosal LCs, whereas LCs in turn maintain mucosal homeostasis and prevent tissue destruction...
January 17, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29338292/temporalis-fascia-transplantation-for-sulcus-vocalis-and-vocal-fold-scar-long-term-outcomes
#7
William E Karle, Samuel N Helman, Amy Cooper, Yuan Zhang, Michael J Pitman
OBJECTIVE: Sulcus vocalis and vocal fold scar involve derangement of the superficial lamina propria of the vocal fold, which results in significant dysphonia. Many options exist for treatment, most of which have unsatisfactory and unpredictable outcomes. Autologous transplantation of temporalis fascia into the vocal fold (ATFV) has the potential to be a better treatment option, but long-term outcomes have not been well studied. METHODS: Retrospective chart review and patient survey...
January 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29328039/influence-of-metabolic-syndrome-on-condition-of-microcirculatory-bed-of-oral-cavity
#8
O Denga, T Pyndus, V Gargin, S Schneider
Metabolic syndrome (MS) can be characterized as the clustering of combination of impaired glucose regulation, metabolic disorders accompanied by abdominal obesity, hyperglycemia, high blood pressure and dyslipidemia. Detection of changes in microcirculatory bed (MCB) of oral cavity in metabolic syndrome could be important for completion of gap for developing of adequate therapeutical measure for prevention of pathological periodontal disorder that was the purpose of our study. We performed experimental investigation with modulation of MS (on white male rats 1...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29325343/-expression-and-significance-of-autophagy-in-rabbit-model-of-tracheal-stenosis
#9
E Y Qin, L M Gan, J H Gan, Y Li, W T Li, C C Hou, X Y Meng, L Zhou, G N Liu
Objective: To investigate the expression and significance of autophagy in rabbit model of tracheal stenosis. Methods: A total of 18 rabbits were equally divided into 3 groups (blank control group, saline group, erythromycin group) in accordance with the random number table. After rabbit model of tracheal stenosis was established, no treatment was done with blank control group. Saline group was atomized with saline (0.54 mg/kg, 2 times/day), and erythromycin group was fed on erythromycin (7.5 mg/kg, 2 times/day) for 7 days before and 10 days after the operation...
December 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29322584/effects-of-fixation-on-electrophysiology-and-structure-of-human-jejunal-villi
#10
Anna Casselbrant, Herbert F Helander
The villi of human jejunum vary in size and shape during different functional conditions. In the base the lamina propria is isotonic with blood, in the tip hyperosmotic. Here we study electrophysiological and morphological effects of incubation in hypotonic, isotonic, or hypertonic solutions, and to test various isotonic fixatives for microscopy. Samples of jejunal mucosae, obtained during surgery in obese patients, were studied in Ussing chambers where electrical parameters were registered during incubation in Krebs solution at various osmolarities, and during fixation in formaldehyde, glutaraldehyde, or osmium tetroxide (OsO4 )...
January 11, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29319881/systemic-il-2-anti-il-2ab-complex-combined-with-sublingual-immunotherapy-suppresses-experimental-food-allergy-in-mice-through-induction-of-mucosal-regulatory-t-cells
#11
Paola L Smaldini, Fernando Trejo, José L Cohen, Eliane Piaggio, Guillermo H Docena
Therapeutic tolerance restoration has been proven to modify food allergy in patients and animal models and although sublingual immunotherapy (SLIT) has showed promise, combined therapy may be necessary to achieve a strong and long-term tolerance. In this work, we combined SLIT with systemic administration of IL-2 associated with an anti-IL-2 monoclonal antibody (IL-2/anti-IL-2Ab complex or IL-2C) to reverse the IgE-mediated experimental allergy. Balb/c mice were sensitized with cholera toxin and milk proteins and orally challenged with allergen to elicit hypersensitivity reactions...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29316348/ultrastructural-and-immunohistochemical-study-on-the-lamina-propria-cells-beneath-paneth-cells-in-the-rat-ileum
#12
Youhei Mantani, Miho Nishida, Kyouji Yamamoto, Kazuki Miyamoto, Hideto Yuasa, Natsumi Masuda, Takuya Omotehara, Hiroki Tsuruta, Toshifumi Yokoyama, Nobuhiko Hoshi, Hiroshi Kitagawa
Paneth cells secrete bactericidal substances in response to bacterial proliferation on the mucosal surface without directly contacting bacteria. However, the induction mechanism of this transient secretion has not been clarified, although nervous system and/or immunocompetent cells in the lamina propria (LP) might be involved. In the present study, we ultrastructurally and immunohistochemically investigated which LP cells are localized beneath Paneth cells and examined the relationship between the Paneth cell-derived cellular processes which extended into the LP and the LP cells...
January 6, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29315653/group-1-innate-lymphoid-cells-in-toxoplasma-gondii-infection
#13
Ildiko Rita Dunay, Andreas Diefenbach
Innate lymphoid cells (ILCs) are a group of lymphocytes that carry out important functions in immunity to infections and in organ homeostasis at epithelial barrier surfaces. ILCs are innate immune cells that provide an early source of cytokines to initiate immune responses against pathogens. Cytotoxic ILCs (i.e., conventional (c)NK cells) and several subsets of helper-like ILCs are the major brances of the ILC family. Conventional NK cells and group 1 ILCs share several functions such as surface receptors and the ability to produce IFN-γ upon activation but they differ in their developmental paths and in their dependence on specific transcription factors...
January 9, 2018: Parasite Immunology
https://www.readbyqxmd.com/read/29310440/the-ferret-as-a-surgical-model-for-vocal-fold-scar-creation-and-treatment
#14
Haruka Kodama, Yoshihiko Kumai, Kohei Nishimoto, Yutaka Toya, Satoru Miyamaru, Shinobu Furushima, Eiji Yumoto
OBJECTIVES: To develop a vocal fold (VF) scarring procedure in the ferret, characterize the scars histologically, and test the injectability of the lamina propria (LP). Secondarily, to compare laryngeal anatomy of the ferret with rat and rabbit. MATERIALS AND METHODS: The larynges of 18 male ferrets were prepared by unilateral scarring, and normal larynges from 6 female Wistar rats and 5 male albino rabbits were used for comparative purposes. For scarring, the right VF were electrocauterized, ablating the entire LP...
January 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29307123/the-role-of-diet-in-managing-inflamatory-bowel-disease-affected-dogs-a-retrospective-cohort-study-on-76-cases
#15
Maria Chiara Marchesi
The term in ammatory bowel diseases (IBD) refers to a group of idiopathic, chronic intestinal diseases characterized by a di use in ltration of in ammatory cells into the lamina propria of the intestine. The pathogenesis of IBD is unknown. The most common signs described are diarrhoea, vomit, and progressive weight loss. In order to make a de nitive diagnosis, though, the presence of in ammatory cells in ltration must be evident on histopathologic analysis. The therapeutic approach has 2 main goals: decrease the in ammatory response and remove possible antigenic sources, such as food components or intestinal micro ora...
December 29, 2017: Veterinaria Italiana
https://www.readbyqxmd.com/read/29306629/recent-advances-in-triacylglycerol-mobilization-by-the-gut
#16
REVIEW
Changting Xiao, Priska Stahel, Alicia L Carreiro, Kimberly K Buhman, Gary F Lewis
Dietary lipid absorption and lipoprotein secretion by the gut are important in maintaining whole-body energy homeostasis and have significant implications for health and disease. The processing of dietary lipids, including storage within and subsequent mobilization and transport from enterocyte cytoplasmic lipid droplets or other intestinal lipid storage pools (including the secretary pathway, lamina propria and lymphatics) and secretion of chylomicrons, involves coordinated steps that are subject to various controls...
January 3, 2018: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/29304144/a-clinically-parameterized-mathematical-model-of-shigella-immunity-to-inform-vaccine-design
#17
Courtney L Davis, Rezwanul Wahid, Franklin R Toapanta, Jakub K Simon, Marcelo B Sztein
We refine and clinically parameterize a mathematical model of the humoral immune response against Shigella, a diarrheal bacteria that infects 80-165 million people and kills an estimated 600,000 people worldwide each year. Using Latin hypercube sampling and Monte Carlo simulations for parameter estimation, we fit our model to human immune data from two Shigella EcSf2a-2 vaccine trials and a rechallenge study in which antibody and B-cell responses against Shigella's lipopolysaccharide (LPS) and O-membrane proteins (OMP) were recorded...
2018: PloS One
https://www.readbyqxmd.com/read/29302015/s1p-dependent-interorgan-trafficking-of-group-2-innate-lymphoid-cells-supports-host-defense
#18
Yuefeng Huang, Kairui Mao, Xi Chen, Ming-An Sun, Takeshi Kawabe, Weizhe Li, Nicholas Usher, Jinfang Zhu, Joseph F Urban, William E Paul, Ronald N Germain
Innate lymphoid cells (ILCs) are innate counterparts of adaptive T lymphocytes, contributing to host defense, tissue repair, metabolic homeostasis, and inflammatory diseases. ILCs have been considered to be tissue-resident cells, but whether ILCs move between tissue sites during infection has been unclear. We show here that interleukin-25- or helminth-induced inflammatory ILC2s are circulating cells that arise from resting ILC2s residing in intestinal lamina propria. They migrate to diverse tissues based on sphingosine 1-phosphate (S1P)-mediated chemotaxis that promotes lymphatic entry, blood circulation, and accumulation in peripheral sites, including the lung, where they contribute to anti-helminth defense and tissue repair...
January 5, 2018: Science
https://www.readbyqxmd.com/read/29290521/th17-plasticity-and-its-relevance-to-inflammatory-bowel-disease
#19
REVIEW
Aito Ueno, Louisa Jeffery, Taku Kobayashi, Toshifumi Hibi, Subrata Ghosh, Humberto Jijon
It is now clear that previously polarized T cells possess the ability to change their phenotype and repolarize towards different fates. This intrinsic flexibility is commonly referred to as plasticity and is influenced by the cytokine milieu, microbial products and products of metabolism which, in turn, regulate transcription factors and epigenetic machinery in the intestinal lamina propria. The intestinal immune system faces a particularly difficult challenge. It serves to protect the largest mucosal surface against infection and injury while maintaining a state of tolerance towards dietary antigens and the largest population of commensal organisms in the body...
December 28, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29289685/tgf-%C3%AE-signalling-pathways-in-different-compartments-of-the-lower-airways-of-stable-copd-patients
#20
Antonino Di Stefano, Claudia Sangiorgi, Isabella Gnemmi, Paolo Casolari, Paola Brun, Fabio Lm Ricciardolo, Marco Contoli, Alberto Papi, Pio Maniscalco, Paolo Ruggeri, Giuseppe Girbino, Francesco Cappello, Stelios Pavlides, Yike Guo, Kian Fan Chung, Peter J Barnes, Ian M Adcock, Bruno Balbi, Gaetano Caramori
BACKGROUND: The expression and localization of transforming growth factor-beta (TGF-β) pathway proteins in different compartments of the lower airways of stable COPD patients is unclear. OBJECTIVE: To determine TGF-β pathway protein expression in patients with stable COPD. METHODS: The expression and localization of TGF-β pathway components was measured in the bronchial mucosa and peripheral lung of patients with stable COPD (n=44), control smokers with normal lung function (n=24) and control non-smoking subjects (n=11) using immunohistochemistry...
December 28, 2017: Chest
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